Feature

Adjuvant therapy with aspirin offers no protection against recurrence or survival benefit in patients with high-risk nonmetastatic breast cancer, the results of a new phase 3 randomized controlled trial suggest.

These data are more robust than the efficacy signals from previous studies, meaning healthcare providers should not recommend aspirin as adjuvant therapy for breast cancer, reported lead author Wendy Y. Chen, MD, of Dana Farber Cancer Institute, Boston, and colleagues.

What Data Support Aspirin for Treating Breast Cancer?

“Multiple observational studies have reported a decreased risk of death among survivors of breast cancer who were regular aspirin users,” the investigators wrote in JAMA. “Even more compelling were data from randomized trials of aspirin for cardiovascular disease.”

This possible benefit was reported with mechanistic support, as aspirin’s anti-inflammatory and anti-platelet properties could theoretically control tumor growth, they added. Furthermore, aspirin impacts several cancer pathways currently targeted by agents approved by the US Food and Drug Administration (FDA).

Brigham & Women's Hospital

What Were The Key Findings From The A011502 Trial?

The A011502 trial enrolled 3,020 patients aged 18-70 years with ERBB2-negative breast cancer who had received standard therapy via routine clinical care. Eligibility required that chemotherapy and local therapy were complete, but ongoing endocrine therapy was allowed.

Participants were randomized in a 1:1 ratio to receive aspirin 300 mg per day or matching placebo for 5 years. The primary outcome was invasive disease-free survival, and the key secondary outcome was overall survival.

After a median follow-up of almost 3 years, at the first interim analysis, the study was suspended early due to statistical futility. By that timepoint, 253 invasive disease-free survival events occurred, of which 141 occurred in the aspirin group, compared with 112 in the placebo group, providing a hazard ratio of 1.27 (95% CI, 0.99-1.63) that was not statistically significant  (P = .06). No statistically significant difference in overall survival was observed (hazard ratio, 1.19; 95% CI, 0.82-1.72). Safety profiles were similar across groups.

How Will This Study Change Practice?

In an accompanying editorial, Jeanne S. Mandelblatt, MD, of Georgetown Lombardi Institute for Cancer and Aging Research, Washington, and colleagues, praised the trial for its comprehensive approach, but they predicted that the negative result could spell friction for health care providers.

“[C]linicians may find it challenging to communicate with their patients about the negative result in the Alliance trial, because prior lay press articles, observational studies, and meta-analyses of cardiovascular trials suggested that aspirin may decrease breast cancer recurrence,” they wrote.

Georgetown University

How Might the Findings From the A011502 Trial Impact Future Research?

Finally, and “most critically,” the editorialists raised concerns about health equity, noting the limited diversity in trial participants and the potential exclusion of subgroups that might benefit from aspirin use, particularly those more likely to experience accelerated biological aging and disparities in cancer risk and outcomes due to systemic racism or adverse social determinants of health.

They concluded by emphasizing the need to consider the intersectionality of aging, cancer, and disparities in designing future trials to advance health equity.

This study was funded by the Department of Defense Breast Cancer Research Program and the National Cancer Institute of the National Institutes of Health. The research was also supported in part by Bayer, which provided the study drug. The investigators disclosed relationships with Novartis, Seagen, Orum Clinical, and others. The editorialists disclosed relationships with Cantex Pharmaceuticals, and Pfizer.

Adjuvant therapy with aspirin offers no protection against recurrence or survival benefit in patients with high-risk nonmetastatic breast cancer, the results of a new phase 3 randomized controlled trial suggest.

These data are more robust than the efficacy signals from previous studies, meaning healthcare providers should not recommend aspirin as adjuvant therapy for breast cancer, reported lead author Wendy Y. Chen, MD, of Dana Farber Cancer Institute, Boston, and colleagues.

What Data Support Aspirin for Treating Breast Cancer?

“Multiple observational studies have reported a decreased risk of death among survivors of breast cancer who were regular aspirin users,” the investigators wrote in JAMA. “Even more compelling were data from randomized trials of aspirin for cardiovascular disease.”

This possible benefit was reported with mechanistic support, as aspirin’s anti-inflammatory and anti-platelet properties could theoretically control tumor growth, they added. Furthermore, aspirin impacts several cancer pathways currently targeted by agents approved by the US Food and Drug Administration (FDA).

Brigham & Women's Hospital

What Were The Key Findings From The A011502 Trial?

The A011502 trial enrolled 3,020 patients aged 18-70 years with ERBB2-negative breast cancer who had received standard therapy via routine clinical care. Eligibility required that chemotherapy and local therapy were complete, but ongoing endocrine therapy was allowed.

Participants were randomized in a 1:1 ratio to receive aspirin 300 mg per day or matching placebo for 5 years. The primary outcome was invasive disease-free survival, and the key secondary outcome was overall survival.

After a median follow-up of almost 3 years, at the first interim analysis, the study was suspended early due to statistical futility. By that timepoint, 253 invasive disease-free survival events occurred, of which 141 occurred in the aspirin group, compared with 112 in the placebo group, providing a hazard ratio of 1.27 (95% CI, 0.99-1.63) that was not statistically significant  (P = .06). No statistically significant difference in overall survival was observed (hazard ratio, 1.19; 95% CI, 0.82-1.72). Safety profiles were similar across groups.

How Will This Study Change Practice?

In an accompanying editorial, Jeanne S. Mandelblatt, MD, of Georgetown Lombardi Institute for Cancer and Aging Research, Washington, and colleagues, praised the trial for its comprehensive approach, but they predicted that the negative result could spell friction for health care providers.

“[C]linicians may find it challenging to communicate with their patients about the negative result in the Alliance trial, because prior lay press articles, observational studies, and meta-analyses of cardiovascular trials suggested that aspirin may decrease breast cancer recurrence,” they wrote.

Georgetown University

How Might the Findings From the A011502 Trial Impact Future Research?

Finally, and “most critically,” the editorialists raised concerns about health equity, noting the limited diversity in trial participants and the potential exclusion of subgroups that might benefit from aspirin use, particularly those more likely to experience accelerated biological aging and disparities in cancer risk and outcomes due to systemic racism or adverse social determinants of health.

They concluded by emphasizing the need to consider the intersectionality of aging, cancer, and disparities in designing future trials to advance health equity.

This study was funded by the Department of Defense Breast Cancer Research Program and the National Cancer Institute of the National Institutes of Health. The research was also supported in part by Bayer, which provided the study drug. The investigators disclosed relationships with Novartis, Seagen, Orum Clinical, and others. The editorialists disclosed relationships with Cantex Pharmaceuticals, and Pfizer.

Adjuvant therapy with aspirin offers no protection against recurrence or survival benefit in patients with high-risk nonmetastatic breast cancer, the results of a new phase 3 randomized controlled trial suggest.

These data are more robust than the efficacy signals from previous studies, meaning healthcare providers should not recommend aspirin as adjuvant therapy for breast cancer, reported lead author Wendy Y. Chen, MD, of Dana Farber Cancer Institute, Boston, and colleagues.

What Data Support Aspirin for Treating Breast Cancer?

“Multiple observational studies have reported a decreased risk of death among survivors of breast cancer who were regular aspirin users,” the investigators wrote in JAMA. “Even more compelling were data from randomized trials of aspirin for cardiovascular disease.”

This possible benefit was reported with mechanistic support, as aspirin’s anti-inflammatory and anti-platelet properties could theoretically control tumor growth, they added. Furthermore, aspirin impacts several cancer pathways currently targeted by agents approved by the US Food and Drug Administration (FDA).

Brigham & Women's Hospital

What Were The Key Findings From The A011502 Trial?

The A011502 trial enrolled 3,020 patients aged 18-70 years with ERBB2-negative breast cancer who had received standard therapy via routine clinical care. Eligibility required that chemotherapy and local therapy were complete, but ongoing endocrine therapy was allowed.

Participants were randomized in a 1:1 ratio to receive aspirin 300 mg per day or matching placebo for 5 years. The primary outcome was invasive disease-free survival, and the key secondary outcome was overall survival.

After a median follow-up of almost 3 years, at the first interim analysis, the study was suspended early due to statistical futility. By that timepoint, 253 invasive disease-free survival events occurred, of which 141 occurred in the aspirin group, compared with 112 in the placebo group, providing a hazard ratio of 1.27 (95% CI, 0.99-1.63) that was not statistically significant  (P = .06). No statistically significant difference in overall survival was observed (hazard ratio, 1.19; 95% CI, 0.82-1.72). Safety profiles were similar across groups.

How Will This Study Change Practice?

In an accompanying editorial, Jeanne S. Mandelblatt, MD, of Georgetown Lombardi Institute for Cancer and Aging Research, Washington, and colleagues, praised the trial for its comprehensive approach, but they predicted that the negative result could spell friction for health care providers.

“[C]linicians may find it challenging to communicate with their patients about the negative result in the Alliance trial, because prior lay press articles, observational studies, and meta-analyses of cardiovascular trials suggested that aspirin may decrease breast cancer recurrence,” they wrote.

Georgetown University

How Might the Findings From the A011502 Trial Impact Future Research?

Finally, and “most critically,” the editorialists raised concerns about health equity, noting the limited diversity in trial participants and the potential exclusion of subgroups that might benefit from aspirin use, particularly those more likely to experience accelerated biological aging and disparities in cancer risk and outcomes due to systemic racism or adverse social determinants of health.

They concluded by emphasizing the need to consider the intersectionality of aging, cancer, and disparities in designing future trials to advance health equity.

This study was funded by the Department of Defense Breast Cancer Research Program and the National Cancer Institute of the National Institutes of Health. The research was also supported in part by Bayer, which provided the study drug. The investigators disclosed relationships with Novartis, Seagen, Orum Clinical, and others. The editorialists disclosed relationships with Cantex Pharmaceuticals, and Pfizer.

New and evolving research in locally advanced rectal cancer suggests that selective use of treatments in some patients can achieve outcomes similar to those of standard regimens, according to the chair of the Department of Radiation Oncology at Duke University School of Medicine, Durham, North Carolina.

Total neoadjuvant therapy (TNT) is the standard treatment that involves systemic chemotherapy and radiation therapy before surgery for patients with locally advanced rectal cancer, Christopher G. Willett, MD, explained, in an interview. However, recent clinical trials support several strategies for “deintensification” of TNT for patients with locally advanced rectal cancer, he said.

Some patients may not require surgery or radiation therapy, or they may not require any treatment modalities including radiation therapy, chemotherapy, and surgery, Dr. Willett continued.

However, “these patients require close surveillance post treatment to identify any recurrence that may require salvage treatment,” he added.

During a presentation at the 2024 National Comprehensive Cancer Network Annual Conference, Dr. Willett primarily discussed the following three strategies for deintensifying overall therapy for locally advanced rectal cancer:

• Selective surgical omission for patients with rectal cancer having a complete clinical response after TNT with close surveillance following treatment.
• Selective omission of radiation therapy for patients with surgery such as sphincter-sparing surgery.
• Selective omission of all treatment modalities (radiation therapy, chemotherapy and surgery). 

Does Watch and Wait Work?

Selective surgical omission, also known as a “watch and wait” or nonoperative management (NOM), involves treating patients with chemotherapy or a combination of chemo and radiation therapy but without surgery, Dr. Willett said during his presentation at the meeting.

Data from the OPRA trial published in the Journal of Clinical Oncology showed that 36% of patients who started on NOM developed tumor regrowth, most of which occurred in the first 2-3 years. Five-year disease-free survival rates were similar in patients who had total mesorectal excision (TME) upfront and those who had salvage TME procedures after tumor regrowth (61% and 62%, respectively). An update to the OPRA trial showed that the clinical outcomes persisted, and the results suggest no significant differences in disease-free survival between upfront surgery vs. watch and wait, Dr. Willett said.
 

Does Selective Omission of Radiotherapy Work?

Selective omission of radiotherapy is another option for reducing the overall treatment burden in patients with locally advanced rectal cancer, Dr. Willett. For these patients, who are at relatively low risk for recurrence, radiation along with surgery may not be needed.

Data from the FOWARC trial, published in the Journal of Clinical Oncology in 2016 and 2019, included 495 patients from 15 centers in China. In the randomized trial, the researchers found no significant difference in the primary outcome of disease-free survival between patients assigned in a 1:1:1 ratio to three arms:

• FOLFOX chemotherapy alone (a combination of chemotherapy drugs including folinic acid, fluorouracil, and oxaliplatin).
• FOLFOX plus chemoradiation.
• FU (fluorouracil)/LV (leucovorin calcium) plus chemoradiation.

Although the data were ultimately inconclusive because of potential staging bias, the findings were “promising for recommending radiation omission in these patients,” Dr. Willett said.

The larger PROSPECT study published in The New England Journal of Medicine in 2023 was similarly encouraging, he said. In this trial, 1194 patients with locally advanced rectal cancer were randomized to FOLFOX or chemoradiation prior to sphincter-sparing surgery. The two groups showed similar 5-year estimated overall survival, complete resection (R0), and pathological complete response.

“These further data support the idea that we don’t need radiotherapy anymore,” Dr. Willett said.

PROSPECT was “a very well-done trial” that also showed important patient reported outcomes, he said. At 12 months after surgery, patients in the chemoradiation group had higher scores on fatigue and neuropathy measures, but less than 15% were severe. Sexual function scores for men and women were worse in the chemoradiation group, although overall health-related quality-of-life scores were not significantly different between the groups, he noted.
 

Does Dropping Everything But Immunotherapy Work?

Research is very preliminary, but a small study of 12 patients with mismatch repair-deficit (MMRd) locally advanced rectal cancer published in The New England Journal of Medicine “lends optimism” to a personalized treatment approach via a programmed death 1 (PD-1) blockade, Dr. Willett said. The “small, but impressive numbers” showed that all 12 patients treated with dostarlimab only (an anti-PD-1 monoclonal antibody) had durable disease control at a follow-up of 6-24 months.

This option is feasible for patients with MMRd locally advanced rectal cancer, Dr. Willett said in an interview. “Patients treated with only dostarlimab (a PD-1 inhibitor) had excellent outcomes and did not require radiation therapy, chemotherapy, and surgery. This is potentially a new paradigm of treatment for MMRd rectal cancer.”

What are the Clinical Implications and Next Steps?

Patients should be carefully evaluated and selected for treatment approaches by experienced multidisciplinary teams with vigilant posttreatment surveillance, including history and physical exam, endoscopy, computed tomography (CT) of the chest, and abdomen and pelvic magnetic resonance imaging (MRI), Dr. Willett said in the interview.

Data on the treatment of patients with MMRd rectal cancer using dostarlimab and other immune checkpoint inhibitors are preliminary; more patients and further follow-up are required, he said. This treatment is applicable to only 5%-10% of patients with rectal cancer, he continued.

“There is a need for biomarkers such as circulating tumor DNA to further aid in selection and monitoring of patients with rectal cancer,” Dr. Willett said.

Other preliminary research is examining circulating tumor DNA analysis to guide adjuvant treatment for patients with resected stage II colon cancer, he noted in his presentation. Currently, ctDNA-driven therapy is not recommended by the NCCN, but more research is needed to determine whether this strategy might be applied to decision-making in rectal cancer patients, especially with watch and wait/nonoperative strategies, he said.
 

What Are the Takeaways for Deintensifying Treatment of Rectal Cancer?

The global continuum of rectal cancer clinical trials has provided significant evidence that, for select patients, the deintensification of treatment strategies may result in the avoidance of radiation and even avoidance of surgery, which can profoundly improve long-term quality of life, Al B. Benson III, MD, said in an interview.

“A critical takeaway message for clinicians who are determining which individual patient might benefit from a less intensive regimen to treat locally advanced rectal cancer is to first have a multidisciplinary consensus which should encompass review of a rectal MRI, pathology, chest and abdominal imaging, colonoscopy, as well as the patient’s clinical status including comorbidities,” said Dr. Benson, who served as chair of the NCCN Guidelines Panel for Colon/Rectal/Anal Cancers and Small Intestine Adenocarcinoma.

“The location of the rectal tumor (distal versus proximal) and clinical TNM stage also will inform the discussion as to which of the potential total neoadjuvant therapy regimens would be most optimal to reduce the risk of local recurrence and maintain long-term quality of life for the individual patient,” explained Dr. Benson, professor of medicine at Robert H. Lurie Comprehensive Cancer Center of Northwestern University in Chicago.

The effectiveness of less intense treatment for rectal cancer remains a work in progress, Dr. Benson said in an interview. “There is much we still do not know, such as the optimal selection of patients and the durability of this approach over time.”

Patients who undergo watch and wait require intensive follow-up, including sigmoidoscopy, digital rectal exam, and rectal MRI, to detect any evidence of local recurrence that would warrant further intervention, including possible radiation and surgery, he said. A highly skilled multidisciplinary team is a must for individuals who are potential candidates for a less intense treatment regimen, he emphasized.  

The treatment of locally advanced rectal cancer continues to evolve, but there is no question that TNT has transformed patient outcomes, including the ability to deintensify treatment for select patients, Dr. Benson said. 

However, many research gaps remain, Dr. Benson said in an interview. “For the MSI/dMMR patient who has achieved a complete response from immunotherapy we will need more long-term data to determine the durability of a complete clinical response and long-term avoidance of other interventions including radiation, chemotherapy and surgery.

“The wait and watch strategy for the much more common MSS patient also will require much longer follow-up to determine which patients are destined to recur and which are not,” he added.

“The introduction of monitoring with ctDNA determination over time offers an opportunity to streamline surveillance of patients who have completed combination therapy and for those undergoing watch and wait; however, much more information is required to determine which of the various ctDNA assays are most optimal, and the frequency and duration of ctDNA determination that will lend this approach as a standard of care,” Dr. Benson said.

Dr. Willett and Dr. Benson had no financial conflicts to disclose.

New and evolving research in locally advanced rectal cancer suggests that selective use of treatments in some patients can achieve outcomes similar to those of standard regimens, according to the chair of the Department of Radiation Oncology at Duke University School of Medicine, Durham, North Carolina.

Total neoadjuvant therapy (TNT) is the standard treatment that involves systemic chemotherapy and radiation therapy before surgery for patients with locally advanced rectal cancer, Christopher G. Willett, MD, explained, in an interview. However, recent clinical trials support several strategies for “deintensification” of TNT for patients with locally advanced rectal cancer, he said.

Some patients may not require surgery or radiation therapy, or they may not require any treatment modalities including radiation therapy, chemotherapy, and surgery, Dr. Willett continued.

However, “these patients require close surveillance post treatment to identify any recurrence that may require salvage treatment,” he added.

During a presentation at the 2024 National Comprehensive Cancer Network Annual Conference, Dr. Willett primarily discussed the following three strategies for deintensifying overall therapy for locally advanced rectal cancer:

• Selective surgical omission for patients with rectal cancer having a complete clinical response after TNT with close surveillance following treatment.
• Selective omission of radiation therapy for patients with surgery such as sphincter-sparing surgery.
• Selective omission of all treatment modalities (radiation therapy, chemotherapy and surgery). 

Does Watch and Wait Work?

Selective surgical omission, also known as a “watch and wait” or nonoperative management (NOM), involves treating patients with chemotherapy or a combination of chemo and radiation therapy but without surgery, Dr. Willett said during his presentation at the meeting.

Data from the OPRA trial published in the Journal of Clinical Oncology showed that 36% of patients who started on NOM developed tumor regrowth, most of which occurred in the first 2-3 years. Five-year disease-free survival rates were similar in patients who had total mesorectal excision (TME) upfront and those who had salvage TME procedures after tumor regrowth (61% and 62%, respectively). An update to the OPRA trial showed that the clinical outcomes persisted, and the results suggest no significant differences in disease-free survival between upfront surgery vs. watch and wait, Dr. Willett said.
 

Does Selective Omission of Radiotherapy Work?

Selective omission of radiotherapy is another option for reducing the overall treatment burden in patients with locally advanced rectal cancer, Dr. Willett. For these patients, who are at relatively low risk for recurrence, radiation along with surgery may not be needed.

Data from the FOWARC trial, published in the Journal of Clinical Oncology in 2016 and 2019, included 495 patients from 15 centers in China. In the randomized trial, the researchers found no significant difference in the primary outcome of disease-free survival between patients assigned in a 1:1:1 ratio to three arms:

• FOLFOX chemotherapy alone (a combination of chemotherapy drugs including folinic acid, fluorouracil, and oxaliplatin).
• FOLFOX plus chemoradiation.
• FU (fluorouracil)/LV (leucovorin calcium) plus chemoradiation.

Although the data were ultimately inconclusive because of potential staging bias, the findings were “promising for recommending radiation omission in these patients,” Dr. Willett said.

The larger PROSPECT study published in The New England Journal of Medicine in 2023 was similarly encouraging, he said. In this trial, 1194 patients with locally advanced rectal cancer were randomized to FOLFOX or chemoradiation prior to sphincter-sparing surgery. The two groups showed similar 5-year estimated overall survival, complete resection (R0), and pathological complete response.

“These further data support the idea that we don’t need radiotherapy anymore,” Dr. Willett said.

PROSPECT was “a very well-done trial” that also showed important patient reported outcomes, he said. At 12 months after surgery, patients in the chemoradiation group had higher scores on fatigue and neuropathy measures, but less than 15% were severe. Sexual function scores for men and women were worse in the chemoradiation group, although overall health-related quality-of-life scores were not significantly different between the groups, he noted.
 

Does Dropping Everything But Immunotherapy Work?

Research is very preliminary, but a small study of 12 patients with mismatch repair-deficit (MMRd) locally advanced rectal cancer published in The New England Journal of Medicine “lends optimism” to a personalized treatment approach via a programmed death 1 (PD-1) blockade, Dr. Willett said. The “small, but impressive numbers” showed that all 12 patients treated with dostarlimab only (an anti-PD-1 monoclonal antibody) had durable disease control at a follow-up of 6-24 months.

This option is feasible for patients with MMRd locally advanced rectal cancer, Dr. Willett said in an interview. “Patients treated with only dostarlimab (a PD-1 inhibitor) had excellent outcomes and did not require radiation therapy, chemotherapy, and surgery. This is potentially a new paradigm of treatment for MMRd rectal cancer.”

What are the Clinical Implications and Next Steps?

Patients should be carefully evaluated and selected for treatment approaches by experienced multidisciplinary teams with vigilant posttreatment surveillance, including history and physical exam, endoscopy, computed tomography (CT) of the chest, and abdomen and pelvic magnetic resonance imaging (MRI), Dr. Willett said in the interview.

Data on the treatment of patients with MMRd rectal cancer using dostarlimab and other immune checkpoint inhibitors are preliminary; more patients and further follow-up are required, he said. This treatment is applicable to only 5%-10% of patients with rectal cancer, he continued.

“There is a need for biomarkers such as circulating tumor DNA to further aid in selection and monitoring of patients with rectal cancer,” Dr. Willett said.

Other preliminary research is examining circulating tumor DNA analysis to guide adjuvant treatment for patients with resected stage II colon cancer, he noted in his presentation. Currently, ctDNA-driven therapy is not recommended by the NCCN, but more research is needed to determine whether this strategy might be applied to decision-making in rectal cancer patients, especially with watch and wait/nonoperative strategies, he said.
 

What Are the Takeaways for Deintensifying Treatment of Rectal Cancer?

The global continuum of rectal cancer clinical trials has provided significant evidence that, for select patients, the deintensification of treatment strategies may result in the avoidance of radiation and even avoidance of surgery, which can profoundly improve long-term quality of life, Al B. Benson III, MD, said in an interview.

“A critical takeaway message for clinicians who are determining which individual patient might benefit from a less intensive regimen to treat locally advanced rectal cancer is to first have a multidisciplinary consensus which should encompass review of a rectal MRI, pathology, chest and abdominal imaging, colonoscopy, as well as the patient’s clinical status including comorbidities,” said Dr. Benson, who served as chair of the NCCN Guidelines Panel for Colon/Rectal/Anal Cancers and Small Intestine Adenocarcinoma.

“The location of the rectal tumor (distal versus proximal) and clinical TNM stage also will inform the discussion as to which of the potential total neoadjuvant therapy regimens would be most optimal to reduce the risk of local recurrence and maintain long-term quality of life for the individual patient,” explained Dr. Benson, professor of medicine at Robert H. Lurie Comprehensive Cancer Center of Northwestern University in Chicago.

The effectiveness of less intense treatment for rectal cancer remains a work in progress, Dr. Benson said in an interview. “There is much we still do not know, such as the optimal selection of patients and the durability of this approach over time.”

Patients who undergo watch and wait require intensive follow-up, including sigmoidoscopy, digital rectal exam, and rectal MRI, to detect any evidence of local recurrence that would warrant further intervention, including possible radiation and surgery, he said. A highly skilled multidisciplinary team is a must for individuals who are potential candidates for a less intense treatment regimen, he emphasized.  

The treatment of locally advanced rectal cancer continues to evolve, but there is no question that TNT has transformed patient outcomes, including the ability to deintensify treatment for select patients, Dr. Benson said. 

However, many research gaps remain, Dr. Benson said in an interview. “For the MSI/dMMR patient who has achieved a complete response from immunotherapy we will need more long-term data to determine the durability of a complete clinical response and long-term avoidance of other interventions including radiation, chemotherapy and surgery.

“The wait and watch strategy for the much more common MSS patient also will require much longer follow-up to determine which patients are destined to recur and which are not,” he added.

“The introduction of monitoring with ctDNA determination over time offers an opportunity to streamline surveillance of patients who have completed combination therapy and for those undergoing watch and wait; however, much more information is required to determine which of the various ctDNA assays are most optimal, and the frequency and duration of ctDNA determination that will lend this approach as a standard of care,” Dr. Benson said.

Dr. Willett and Dr. Benson had no financial conflicts to disclose.

New and evolving research in locally advanced rectal cancer suggests that selective use of treatments in some patients can achieve outcomes similar to those of standard regimens, according to the chair of the Department of Radiation Oncology at Duke University School of Medicine, Durham, North Carolina.

Total neoadjuvant therapy (TNT) is the standard treatment that involves systemic chemotherapy and radiation therapy before surgery for patients with locally advanced rectal cancer, Christopher G. Willett, MD, explained, in an interview. However, recent clinical trials support several strategies for “deintensification” of TNT for patients with locally advanced rectal cancer, he said.

Some patients may not require surgery or radiation therapy, or they may not require any treatment modalities including radiation therapy, chemotherapy, and surgery, Dr. Willett continued.

However, “these patients require close surveillance post treatment to identify any recurrence that may require salvage treatment,” he added.

During a presentation at the 2024 National Comprehensive Cancer Network Annual Conference, Dr. Willett primarily discussed the following three strategies for deintensifying overall therapy for locally advanced rectal cancer:

• Selective surgical omission for patients with rectal cancer having a complete clinical response after TNT with close surveillance following treatment.
• Selective omission of radiation therapy for patients with surgery such as sphincter-sparing surgery.
• Selective omission of all treatment modalities (radiation therapy, chemotherapy and surgery). 

Does Watch and Wait Work?

Selective surgical omission, also known as a “watch and wait” or nonoperative management (NOM), involves treating patients with chemotherapy or a combination of chemo and radiation therapy but without surgery, Dr. Willett said during his presentation at the meeting.

Data from the OPRA trial published in the Journal of Clinical Oncology showed that 36% of patients who started on NOM developed tumor regrowth, most of which occurred in the first 2-3 years. Five-year disease-free survival rates were similar in patients who had total mesorectal excision (TME) upfront and those who had salvage TME procedures after tumor regrowth (61% and 62%, respectively). An update to the OPRA trial showed that the clinical outcomes persisted, and the results suggest no significant differences in disease-free survival between upfront surgery vs. watch and wait, Dr. Willett said.
 

Does Selective Omission of Radiotherapy Work?

Selective omission of radiotherapy is another option for reducing the overall treatment burden in patients with locally advanced rectal cancer, Dr. Willett. For these patients, who are at relatively low risk for recurrence, radiation along with surgery may not be needed.

Data from the FOWARC trial, published in the Journal of Clinical Oncology in 2016 and 2019, included 495 patients from 15 centers in China. In the randomized trial, the researchers found no significant difference in the primary outcome of disease-free survival between patients assigned in a 1:1:1 ratio to three arms:

• FOLFOX chemotherapy alone (a combination of chemotherapy drugs including folinic acid, fluorouracil, and oxaliplatin).
• FOLFOX plus chemoradiation.
• FU (fluorouracil)/LV (leucovorin calcium) plus chemoradiation.

Although the data were ultimately inconclusive because of potential staging bias, the findings were “promising for recommending radiation omission in these patients,” Dr. Willett said.

The larger PROSPECT study published in The New England Journal of Medicine in 2023 was similarly encouraging, he said. In this trial, 1194 patients with locally advanced rectal cancer were randomized to FOLFOX or chemoradiation prior to sphincter-sparing surgery. The two groups showed similar 5-year estimated overall survival, complete resection (R0), and pathological complete response.

“These further data support the idea that we don’t need radiotherapy anymore,” Dr. Willett said.

PROSPECT was “a very well-done trial” that also showed important patient reported outcomes, he said. At 12 months after surgery, patients in the chemoradiation group had higher scores on fatigue and neuropathy measures, but less than 15% were severe. Sexual function scores for men and women were worse in the chemoradiation group, although overall health-related quality-of-life scores were not significantly different between the groups, he noted.
 

Does Dropping Everything But Immunotherapy Work?

Research is very preliminary, but a small study of 12 patients with mismatch repair-deficit (MMRd) locally advanced rectal cancer published in The New England Journal of Medicine “lends optimism” to a personalized treatment approach via a programmed death 1 (PD-1) blockade, Dr. Willett said. The “small, but impressive numbers” showed that all 12 patients treated with dostarlimab only (an anti-PD-1 monoclonal antibody) had durable disease control at a follow-up of 6-24 months.

This option is feasible for patients with MMRd locally advanced rectal cancer, Dr. Willett said in an interview. “Patients treated with only dostarlimab (a PD-1 inhibitor) had excellent outcomes and did not require radiation therapy, chemotherapy, and surgery. This is potentially a new paradigm of treatment for MMRd rectal cancer.”

What are the Clinical Implications and Next Steps?

Patients should be carefully evaluated and selected for treatment approaches by experienced multidisciplinary teams with vigilant posttreatment surveillance, including history and physical exam, endoscopy, computed tomography (CT) of the chest, and abdomen and pelvic magnetic resonance imaging (MRI), Dr. Willett said in the interview.

Data on the treatment of patients with MMRd rectal cancer using dostarlimab and other immune checkpoint inhibitors are preliminary; more patients and further follow-up are required, he said. This treatment is applicable to only 5%-10% of patients with rectal cancer, he continued.

“There is a need for biomarkers such as circulating tumor DNA to further aid in selection and monitoring of patients with rectal cancer,” Dr. Willett said.

Other preliminary research is examining circulating tumor DNA analysis to guide adjuvant treatment for patients with resected stage II colon cancer, he noted in his presentation. Currently, ctDNA-driven therapy is not recommended by the NCCN, but more research is needed to determine whether this strategy might be applied to decision-making in rectal cancer patients, especially with watch and wait/nonoperative strategies, he said.
 

What Are the Takeaways for Deintensifying Treatment of Rectal Cancer?

The global continuum of rectal cancer clinical trials has provided significant evidence that, for select patients, the deintensification of treatment strategies may result in the avoidance of radiation and even avoidance of surgery, which can profoundly improve long-term quality of life, Al B. Benson III, MD, said in an interview.

“A critical takeaway message for clinicians who are determining which individual patient might benefit from a less intensive regimen to treat locally advanced rectal cancer is to first have a multidisciplinary consensus which should encompass review of a rectal MRI, pathology, chest and abdominal imaging, colonoscopy, as well as the patient’s clinical status including comorbidities,” said Dr. Benson, who served as chair of the NCCN Guidelines Panel for Colon/Rectal/Anal Cancers and Small Intestine Adenocarcinoma.

“The location of the rectal tumor (distal versus proximal) and clinical TNM stage also will inform the discussion as to which of the potential total neoadjuvant therapy regimens would be most optimal to reduce the risk of local recurrence and maintain long-term quality of life for the individual patient,” explained Dr. Benson, professor of medicine at Robert H. Lurie Comprehensive Cancer Center of Northwestern University in Chicago.

The effectiveness of less intense treatment for rectal cancer remains a work in progress, Dr. Benson said in an interview. “There is much we still do not know, such as the optimal selection of patients and the durability of this approach over time.”

Patients who undergo watch and wait require intensive follow-up, including sigmoidoscopy, digital rectal exam, and rectal MRI, to detect any evidence of local recurrence that would warrant further intervention, including possible radiation and surgery, he said. A highly skilled multidisciplinary team is a must for individuals who are potential candidates for a less intense treatment regimen, he emphasized.  

The treatment of locally advanced rectal cancer continues to evolve, but there is no question that TNT has transformed patient outcomes, including the ability to deintensify treatment for select patients, Dr. Benson said. 

However, many research gaps remain, Dr. Benson said in an interview. “For the MSI/dMMR patient who has achieved a complete response from immunotherapy we will need more long-term data to determine the durability of a complete clinical response and long-term avoidance of other interventions including radiation, chemotherapy and surgery.

“The wait and watch strategy for the much more common MSS patient also will require much longer follow-up to determine which patients are destined to recur and which are not,” he added.

“The introduction of monitoring with ctDNA determination over time offers an opportunity to streamline surveillance of patients who have completed combination therapy and for those undergoing watch and wait; however, much more information is required to determine which of the various ctDNA assays are most optimal, and the frequency and duration of ctDNA determination that will lend this approach as a standard of care,” Dr. Benson said.

Dr. Willett and Dr. Benson had no financial conflicts to disclose.

Companies selling gut microbiome tests directly to consumers offer up a variety of claims to promote their products.

“We analyze the trillions of microbes in your gut microflora and craft a unique formula for your unique gut needs,” one says. “Get actionable dietary, supplement, and lifestyle recommendations from our microbiome experts based on your results, tailored to mom and baby’s biomarkers. ... Any family member like dads or siblings are welcome too,” says another.

The companies assert that they can improve gut health by offering individuals personalized treatments based on their gut microbiome test results. The trouble is, no provider, company, or technology can reliably do that yet.
 

Clinical Implications, Not Applications

The microbiome is the “constellation of microorganisms that call the human body home,” including many strains of bacteria, fungi, and viruses. That constellation comprises some 39 trillion cells.

Although knowledge is increasing on the oral, cutaneous, and vaginal microbiomes, the gut microbiome is arguably the most studied. However, while research is increasingly demonstrating that the gut microbiome has clinical implications, much work needs to be done before reliable applications based on that research are available.

But lack of scientific evidence and validity hasn’t stopped a growing number of companies across the globe from offering direct-to-consumer (DTC) microbiome tests, Erik C. von Rosenvinge, MD, AGAF, a professor at the University of Maryland School of Medicine and chief of gastroenterology at the VA Maryland Health Care System, Baltimore, said in an interview.

“If you go to their websites, even if it’s not stated overtly, these companies at least give the impression that they’re providing actionable, useful information,” he said. “The sites recommend microbiome testing, and often supplements, probiotics, or other products that they sell. And consumers are told they need to be tested again once they start taking any of these products to see if they’re receiving any benefit.”

Dr. von Rosenvinge and colleagues authored a recent article in Science  arguing that DTC microbiome tests “lack analytical and clinical validity” — and yet regulation of the industry has been “generally ignored.” They identified 31 companies globally, 17 of which are based in the United States, claiming to have products and/or services aimed at changing the intestinal microbiome.
 

Unreliable, Unregulated

The lack of reliability has been shown by experts who have tested the tests.

“People have taken the same stool sample, sent it to multiple companies, and gotten different results back,” Dr. von Rosenvinge said. “People also have taken a stool sample and sent it to the same company under two different names and received two different results. If the test is unreliable at its foundational level, it’s hard to use it in any clinical way.”

Test users’ methods and the companies’ procedures can affect the results, Dina Kao, MD, a professor at the University of Alberta, Edmonton, Alberta, Canada, said in an interview.

“So many biases can be introduced at every single step of the way, starting from how the stool sample was collected and how it’s preserved or not being preserved, because that can introduce a lot of noise that would change the analyses. Which primer they’re using to amplify the signals and which bioinformatic pipeline they use are also important,” said Dr. Kao, who presented at the recent Gut Microbiota for Health World Summit, organized by the American Gastroenterological Association (AGA) and the European Society of Neurogastroenterology and Motility (ESNM).

Different investigators and companies use different technologies, so it’s very difficult to compare them and to create a standard, said Mahmoud Ghannoum, PhD, a professor in the dermatology and pathology departments at Case Western Reserve University School of Medicine and director of the Center for Medical Mycology at University Hospitals in Cleveland.

The complexity of the gut microbiome makes test standardization more difficult than it is when just one organism is involved, Dr. Ghannoum, who chaired the antifungal subcommittee at the Clinical and Laboratory Standards Institute, said in an interview.

“Even though many researchers are focusing on bacteria, we also have fungi and viruses. We need standardization of methods for testing these organisms if we want to have regulations,” said Dr. Ghannoum, a cofounder of BIOHM, a microbiome company that offers nondiagnostic tests and markets a variety of probiotics, prebiotics, and immunity supplements. BIOHM is one of the 31 companies identified by Dr. von Rosenvinge and colleagues, as noted above.

Dr. Ghannoum believes that taking a systematic approach could facilitate standardization and, ultimately, regulation of the DTC microbiome testing products. He and his colleagues described such an approach by outlining the stages for designing probiotics capable of modulating the microbiome in chronic diseases, using Crohn’s disease as a model. Their strategy involved the following steps:

• Using primary microbiome data to identify, by abundance, the microorganisms underlying dysbiosis.
• Gaining insight into the interactions among the identified pathogens.
• Conducting a correlation analysis to identify potential lead probiotic strains that antagonize these pathogens and discovering metabolites that can interrupt their interactions.
• Creating a prototype formulation for testing.
• Validating the efficacy of the candidate formulation via preclinical in vitro and in vivo testing.
• Conducting clinical testing.

Dr. Ghannoum recommends that companies use a similar process “to provide evidence that what they are doing will be helpful, not only for them but also for the reputation of the whole industry.”
 

Potential Pitfalls

Whether test results from commercial companies are positioned as wellness aids or diagnostic tools, providing advice based on the results “is where the danger can really come in,” Dr. Kao said. “There is still so much we don’t know about which microbial signatures are associated with each condition.”

“Even when we have a solution, like the Crohn’s exclusion diet, a physician doesn’t know enough of the nuances to give advice to a patient,” she said. “That really should be done under the guidance of an expert dietitian. And if a company is selling probiotics, I personally feel that’s not ethical. I’m pretty sure there’s always going to be some kind of conflict of interest.”

Supplements and probiotics are generally safe, but negative consequences can occur, Dr. von Rosenvinge noted.

“We occasionally see people who end up with liver problems as a result of certain supplements, and rarely, probiotics have been associated with infections from those organisms, usually in those with a compromised immune system,” he said.

Other risks include people taking supplements or probiotics when they actually have a medically treatable condition or delays in diagnosis of a potentially serious underlying condition, such as colon cancer, he said. Some patients may stop taking their traditional medication in favor of taking supplements or may experience a drug-supplement interaction if they take both.
 

What to Tell Patients

“Doctors should be advising against this testing for their patients,” gastroenterologist Colleen R. Kelly, MD, AGAF, Brigham and Women’s Hospital, Boston, said in an interview. “I explain to patients that these tests are not validated and are clinically meaningless data and not worth the money. There is a reason they are not covered by insurance.

“Recommendations to purchase probiotics or supplements manufactured by the testing company to ‘restore a balanced or healthy microbiome’ clearly seem like a scam,” she added. “I believe some of these companies are capitalizing on patients who are desperate for answers to explain chronic symptoms, such as bloating in irritable bowel syndrome.”

Dr. von Rosenvinge said that the message to patients “is that the science isn’t there yet to support using the results of these tests in a meaningful way. We believe the microbiome is very important in health and disease, but the tests themselves in their current state are not as reliable and reproducible as we would like.”

When patients come in with test results, the first question a clinician should ask is what led them to seek out this type of information in the first place, Dr. von Rosenvinge said.

“Our patient focus groups suggested that many have not gotten clear, satisfactory answers from traditional medicine,” he said. “We don’t have a single test that says, yes, you have irritable bowel syndrome, or no, you don’t. We might suggest things that are helpful for some people and are less helpful for others.”

Dr. Kelly said she worries that “there are snake oil salesmen and cons out there who will gladly take your money. These may be smart people, capable of doing very high-level testing, and even producing very detailed and accurate results, but that doesn’t mean we know what to do with them.”

She hopes to see a microbiome-based diagnostic test in the future, particularly if the ability to therapeutically manipulate the gut microbiome in various diseases becomes a reality.
 

Educate Clinicians, Companies

More education is needed on the subject, so we can become “microbial clinicians,” Dr. Kao said.

“The microbiome never came up when I was going through my medical education,” she said. But we, and the next generation of physicians, “need to at least be able to understand the basics.

“Hopefully, one day, we will be in a position where we can have meaningful interpretations of the test results and make some kind of meaningful dietary interventions,” Dr. Kao added.

As for clinicians who are currently ordering these tests and products directly from the DTC companies, Dr. Kao said, “I roll my eyes.”

Dr. Ghannoum reiterated that companies offering microbiome tests and products also need to be educated and encouraged to use systematic approaches to product development and interpretation.

“Companies should be open to calls from clinicians and be ready to explain findings on a report, as well as the basis for any recommendations,” he said.

Dr. von Rosenvinge, Dr. Kao, and Dr. Kelly had no relevant conflicts of interest. Dr. Ghannoum is a cofounder of BIOHM.

A version of this article appeared on Medscape.com.

Companies selling gut microbiome tests directly to consumers offer up a variety of claims to promote their products.

“We analyze the trillions of microbes in your gut microflora and craft a unique formula for your unique gut needs,” one says. “Get actionable dietary, supplement, and lifestyle recommendations from our microbiome experts based on your results, tailored to mom and baby’s biomarkers. ... Any family member like dads or siblings are welcome too,” says another.

The companies assert that they can improve gut health by offering individuals personalized treatments based on their gut microbiome test results. The trouble is, no provider, company, or technology can reliably do that yet.
 

Clinical Implications, Not Applications

The microbiome is the “constellation of microorganisms that call the human body home,” including many strains of bacteria, fungi, and viruses. That constellation comprises some 39 trillion cells.

Although knowledge is increasing on the oral, cutaneous, and vaginal microbiomes, the gut microbiome is arguably the most studied. However, while research is increasingly demonstrating that the gut microbiome has clinical implications, much work needs to be done before reliable applications based on that research are available.

But lack of scientific evidence and validity hasn’t stopped a growing number of companies across the globe from offering direct-to-consumer (DTC) microbiome tests, Erik C. von Rosenvinge, MD, AGAF, a professor at the University of Maryland School of Medicine and chief of gastroenterology at the VA Maryland Health Care System, Baltimore, said in an interview.

“If you go to their websites, even if it’s not stated overtly, these companies at least give the impression that they’re providing actionable, useful information,” he said. “The sites recommend microbiome testing, and often supplements, probiotics, or other products that they sell. And consumers are told they need to be tested again once they start taking any of these products to see if they’re receiving any benefit.”

Dr. von Rosenvinge and colleagues authored a recent article in Science  arguing that DTC microbiome tests “lack analytical and clinical validity” — and yet regulation of the industry has been “generally ignored.” They identified 31 companies globally, 17 of which are based in the United States, claiming to have products and/or services aimed at changing the intestinal microbiome.
 

Unreliable, Unregulated

The lack of reliability has been shown by experts who have tested the tests.

“People have taken the same stool sample, sent it to multiple companies, and gotten different results back,” Dr. von Rosenvinge said. “People also have taken a stool sample and sent it to the same company under two different names and received two different results. If the test is unreliable at its foundational level, it’s hard to use it in any clinical way.”

Test users’ methods and the companies’ procedures can affect the results, Dina Kao, MD, a professor at the University of Alberta, Edmonton, Alberta, Canada, said in an interview.

“So many biases can be introduced at every single step of the way, starting from how the stool sample was collected and how it’s preserved or not being preserved, because that can introduce a lot of noise that would change the analyses. Which primer they’re using to amplify the signals and which bioinformatic pipeline they use are also important,” said Dr. Kao, who presented at the recent Gut Microbiota for Health World Summit, organized by the American Gastroenterological Association (AGA) and the European Society of Neurogastroenterology and Motility (ESNM).

Different investigators and companies use different technologies, so it’s very difficult to compare them and to create a standard, said Mahmoud Ghannoum, PhD, a professor in the dermatology and pathology departments at Case Western Reserve University School of Medicine and director of the Center for Medical Mycology at University Hospitals in Cleveland.

The complexity of the gut microbiome makes test standardization more difficult than it is when just one organism is involved, Dr. Ghannoum, who chaired the antifungal subcommittee at the Clinical and Laboratory Standards Institute, said in an interview.

“Even though many researchers are focusing on bacteria, we also have fungi and viruses. We need standardization of methods for testing these organisms if we want to have regulations,” said Dr. Ghannoum, a cofounder of BIOHM, a microbiome company that offers nondiagnostic tests and markets a variety of probiotics, prebiotics, and immunity supplements. BIOHM is one of the 31 companies identified by Dr. von Rosenvinge and colleagues, as noted above.

Dr. Ghannoum believes that taking a systematic approach could facilitate standardization and, ultimately, regulation of the DTC microbiome testing products. He and his colleagues described such an approach by outlining the stages for designing probiotics capable of modulating the microbiome in chronic diseases, using Crohn’s disease as a model. Their strategy involved the following steps:

• Using primary microbiome data to identify, by abundance, the microorganisms underlying dysbiosis.
• Gaining insight into the interactions among the identified pathogens.
• Conducting a correlation analysis to identify potential lead probiotic strains that antagonize these pathogens and discovering metabolites that can interrupt their interactions.
• Creating a prototype formulation for testing.
• Validating the efficacy of the candidate formulation via preclinical in vitro and in vivo testing.
• Conducting clinical testing.

Dr. Ghannoum recommends that companies use a similar process “to provide evidence that what they are doing will be helpful, not only for them but also for the reputation of the whole industry.”
 

Potential Pitfalls

Whether test results from commercial companies are positioned as wellness aids or diagnostic tools, providing advice based on the results “is where the danger can really come in,” Dr. Kao said. “There is still so much we don’t know about which microbial signatures are associated with each condition.”

“Even when we have a solution, like the Crohn’s exclusion diet, a physician doesn’t know enough of the nuances to give advice to a patient,” she said. “That really should be done under the guidance of an expert dietitian. And if a company is selling probiotics, I personally feel that’s not ethical. I’m pretty sure there’s always going to be some kind of conflict of interest.”

Supplements and probiotics are generally safe, but negative consequences can occur, Dr. von Rosenvinge noted.

“We occasionally see people who end up with liver problems as a result of certain supplements, and rarely, probiotics have been associated with infections from those organisms, usually in those with a compromised immune system,” he said.

Other risks include people taking supplements or probiotics when they actually have a medically treatable condition or delays in diagnosis of a potentially serious underlying condition, such as colon cancer, he said. Some patients may stop taking their traditional medication in favor of taking supplements or may experience a drug-supplement interaction if they take both.
 

What to Tell Patients

“Doctors should be advising against this testing for their patients,” gastroenterologist Colleen R. Kelly, MD, AGAF, Brigham and Women’s Hospital, Boston, said in an interview. “I explain to patients that these tests are not validated and are clinically meaningless data and not worth the money. There is a reason they are not covered by insurance.

“Recommendations to purchase probiotics or supplements manufactured by the testing company to ‘restore a balanced or healthy microbiome’ clearly seem like a scam,” she added. “I believe some of these companies are capitalizing on patients who are desperate for answers to explain chronic symptoms, such as bloating in irritable bowel syndrome.”

Dr. von Rosenvinge said that the message to patients “is that the science isn’t there yet to support using the results of these tests in a meaningful way. We believe the microbiome is very important in health and disease, but the tests themselves in their current state are not as reliable and reproducible as we would like.”

When patients come in with test results, the first question a clinician should ask is what led them to seek out this type of information in the first place, Dr. von Rosenvinge said.

“Our patient focus groups suggested that many have not gotten clear, satisfactory answers from traditional medicine,” he said. “We don’t have a single test that says, yes, you have irritable bowel syndrome, or no, you don’t. We might suggest things that are helpful for some people and are less helpful for others.”

Dr. Kelly said she worries that “there are snake oil salesmen and cons out there who will gladly take your money. These may be smart people, capable of doing very high-level testing, and even producing very detailed and accurate results, but that doesn’t mean we know what to do with them.”

She hopes to see a microbiome-based diagnostic test in the future, particularly if the ability to therapeutically manipulate the gut microbiome in various diseases becomes a reality.
 

Educate Clinicians, Companies

More education is needed on the subject, so we can become “microbial clinicians,” Dr. Kao said.

“The microbiome never came up when I was going through my medical education,” she said. But we, and the next generation of physicians, “need to at least be able to understand the basics.

“Hopefully, one day, we will be in a position where we can have meaningful interpretations of the test results and make some kind of meaningful dietary interventions,” Dr. Kao added.

As for clinicians who are currently ordering these tests and products directly from the DTC companies, Dr. Kao said, “I roll my eyes.”

Dr. Ghannoum reiterated that companies offering microbiome tests and products also need to be educated and encouraged to use systematic approaches to product development and interpretation.

“Companies should be open to calls from clinicians and be ready to explain findings on a report, as well as the basis for any recommendations,” he said.

Dr. von Rosenvinge, Dr. Kao, and Dr. Kelly had no relevant conflicts of interest. Dr. Ghannoum is a cofounder of BIOHM.

A version of this article appeared on Medscape.com.

Companies selling gut microbiome tests directly to consumers offer up a variety of claims to promote their products.

“We analyze the trillions of microbes in your gut microflora and craft a unique formula for your unique gut needs,” one says. “Get actionable dietary, supplement, and lifestyle recommendations from our microbiome experts based on your results, tailored to mom and baby’s biomarkers. ... Any family member like dads or siblings are welcome too,” says another.

The companies assert that they can improve gut health by offering individuals personalized treatments based on their gut microbiome test results. The trouble is, no provider, company, or technology can reliably do that yet.
 

Clinical Implications, Not Applications

The microbiome is the “constellation of microorganisms that call the human body home,” including many strains of bacteria, fungi, and viruses. That constellation comprises some 39 trillion cells.

Although knowledge is increasing on the oral, cutaneous, and vaginal microbiomes, the gut microbiome is arguably the most studied. However, while research is increasingly demonstrating that the gut microbiome has clinical implications, much work needs to be done before reliable applications based on that research are available.

But lack of scientific evidence and validity hasn’t stopped a growing number of companies across the globe from offering direct-to-consumer (DTC) microbiome tests, Erik C. von Rosenvinge, MD, AGAF, a professor at the University of Maryland School of Medicine and chief of gastroenterology at the VA Maryland Health Care System, Baltimore, said in an interview.

“If you go to their websites, even if it’s not stated overtly, these companies at least give the impression that they’re providing actionable, useful information,” he said. “The sites recommend microbiome testing, and often supplements, probiotics, or other products that they sell. And consumers are told they need to be tested again once they start taking any of these products to see if they’re receiving any benefit.”

Dr. von Rosenvinge and colleagues authored a recent article in Science  arguing that DTC microbiome tests “lack analytical and clinical validity” — and yet regulation of the industry has been “generally ignored.” They identified 31 companies globally, 17 of which are based in the United States, claiming to have products and/or services aimed at changing the intestinal microbiome.
 

Unreliable, Unregulated

The lack of reliability has been shown by experts who have tested the tests.

“People have taken the same stool sample, sent it to multiple companies, and gotten different results back,” Dr. von Rosenvinge said. “People also have taken a stool sample and sent it to the same company under two different names and received two different results. If the test is unreliable at its foundational level, it’s hard to use it in any clinical way.”

Test users’ methods and the companies’ procedures can affect the results, Dina Kao, MD, a professor at the University of Alberta, Edmonton, Alberta, Canada, said in an interview.

“So many biases can be introduced at every single step of the way, starting from how the stool sample was collected and how it’s preserved or not being preserved, because that can introduce a lot of noise that would change the analyses. Which primer they’re using to amplify the signals and which bioinformatic pipeline they use are also important,” said Dr. Kao, who presented at the recent Gut Microbiota for Health World Summit, organized by the American Gastroenterological Association (AGA) and the European Society of Neurogastroenterology and Motility (ESNM).

Different investigators and companies use different technologies, so it’s very difficult to compare them and to create a standard, said Mahmoud Ghannoum, PhD, a professor in the dermatology and pathology departments at Case Western Reserve University School of Medicine and director of the Center for Medical Mycology at University Hospitals in Cleveland.

The complexity of the gut microbiome makes test standardization more difficult than it is when just one organism is involved, Dr. Ghannoum, who chaired the antifungal subcommittee at the Clinical and Laboratory Standards Institute, said in an interview.

“Even though many researchers are focusing on bacteria, we also have fungi and viruses. We need standardization of methods for testing these organisms if we want to have regulations,” said Dr. Ghannoum, a cofounder of BIOHM, a microbiome company that offers nondiagnostic tests and markets a variety of probiotics, prebiotics, and immunity supplements. BIOHM is one of the 31 companies identified by Dr. von Rosenvinge and colleagues, as noted above.

Dr. Ghannoum believes that taking a systematic approach could facilitate standardization and, ultimately, regulation of the DTC microbiome testing products. He and his colleagues described such an approach by outlining the stages for designing probiotics capable of modulating the microbiome in chronic diseases, using Crohn’s disease as a model. Their strategy involved the following steps:

• Using primary microbiome data to identify, by abundance, the microorganisms underlying dysbiosis.
• Gaining insight into the interactions among the identified pathogens.
• Conducting a correlation analysis to identify potential lead probiotic strains that antagonize these pathogens and discovering metabolites that can interrupt their interactions.
• Creating a prototype formulation for testing.
• Validating the efficacy of the candidate formulation via preclinical in vitro and in vivo testing.
• Conducting clinical testing.

Dr. Ghannoum recommends that companies use a similar process “to provide evidence that what they are doing will be helpful, not only for them but also for the reputation of the whole industry.”
 

Potential Pitfalls

Whether test results from commercial companies are positioned as wellness aids or diagnostic tools, providing advice based on the results “is where the danger can really come in,” Dr. Kao said. “There is still so much we don’t know about which microbial signatures are associated with each condition.”

“Even when we have a solution, like the Crohn’s exclusion diet, a physician doesn’t know enough of the nuances to give advice to a patient,” she said. “That really should be done under the guidance of an expert dietitian. And if a company is selling probiotics, I personally feel that’s not ethical. I’m pretty sure there’s always going to be some kind of conflict of interest.”

Supplements and probiotics are generally safe, but negative consequences can occur, Dr. von Rosenvinge noted.

“We occasionally see people who end up with liver problems as a result of certain supplements, and rarely, probiotics have been associated with infections from those organisms, usually in those with a compromised immune system,” he said.

Other risks include people taking supplements or probiotics when they actually have a medically treatable condition or delays in diagnosis of a potentially serious underlying condition, such as colon cancer, he said. Some patients may stop taking their traditional medication in favor of taking supplements or may experience a drug-supplement interaction if they take both.
 

What to Tell Patients

“Doctors should be advising against this testing for their patients,” gastroenterologist Colleen R. Kelly, MD, AGAF, Brigham and Women’s Hospital, Boston, said in an interview. “I explain to patients that these tests are not validated and are clinically meaningless data and not worth the money. There is a reason they are not covered by insurance.

“Recommendations to purchase probiotics or supplements manufactured by the testing company to ‘restore a balanced or healthy microbiome’ clearly seem like a scam,” she added. “I believe some of these companies are capitalizing on patients who are desperate for answers to explain chronic symptoms, such as bloating in irritable bowel syndrome.”

Dr. von Rosenvinge said that the message to patients “is that the science isn’t there yet to support using the results of these tests in a meaningful way. We believe the microbiome is very important in health and disease, but the tests themselves in their current state are not as reliable and reproducible as we would like.”

When patients come in with test results, the first question a clinician should ask is what led them to seek out this type of information in the first place, Dr. von Rosenvinge said.

“Our patient focus groups suggested that many have not gotten clear, satisfactory answers from traditional medicine,” he said. “We don’t have a single test that says, yes, you have irritable bowel syndrome, or no, you don’t. We might suggest things that are helpful for some people and are less helpful for others.”

Dr. Kelly said she worries that “there are snake oil salesmen and cons out there who will gladly take your money. These may be smart people, capable of doing very high-level testing, and even producing very detailed and accurate results, but that doesn’t mean we know what to do with them.”

She hopes to see a microbiome-based diagnostic test in the future, particularly if the ability to therapeutically manipulate the gut microbiome in various diseases becomes a reality.
 

Educate Clinicians, Companies

More education is needed on the subject, so we can become “microbial clinicians,” Dr. Kao said.

“The microbiome never came up when I was going through my medical education,” she said. But we, and the next generation of physicians, “need to at least be able to understand the basics.

“Hopefully, one day, we will be in a position where we can have meaningful interpretations of the test results and make some kind of meaningful dietary interventions,” Dr. Kao added.

As for clinicians who are currently ordering these tests and products directly from the DTC companies, Dr. Kao said, “I roll my eyes.”

Dr. Ghannoum reiterated that companies offering microbiome tests and products also need to be educated and encouraged to use systematic approaches to product development and interpretation.

“Companies should be open to calls from clinicians and be ready to explain findings on a report, as well as the basis for any recommendations,” he said.

Dr. von Rosenvinge, Dr. Kao, and Dr. Kelly had no relevant conflicts of interest. Dr. Ghannoum is a cofounder of BIOHM.

A version of this article appeared on Medscape.com.

The Federal Trade Commission (FTC) voted Tuesday to ban noncompete agreements, possibly making it easier for doctors to switch employers without having to leave their communities and patients behind. But business groups have vowed to challenge the decision in court.

The proposed final rule passed on a 3-2 vote, with the dissenting commissioners disputing the FTC’s authority to broadly ban noncompetes.

Tensions around noncompetes have been building for years. In 2021, President Biden issued an executive order supporting measures to improve economic competition, in which he urged the FTC to consider its rulemaking authority to address noncompete clauses that unfairly limit workers’ mobility. In January 2023, per that directive, the agency proposed ending the restrictive covenants.

While the FTC estimates that the final rule will reduce healthcare costs by up to $194 billion over the next decade and increase worker earnings by $300 million annually, the ruling faces legal hurdles.

US Chamber of Commerce president and CEO Suzanne P. Clark said in a statement that the move is a “blatant power grab” that will undermine competitive business practices, adding that the Chamber will sue to block the measure.

The FTC received more than 26,000 comments on noncompetes during the public feedback period, with about 25,000 supporting the measure, said Benjamin Cady, JD, an FTC attorney.

Mr. Cady called the feedback “compelling,” citing instances of workers who were forced to commute long distances, uproot their families, or risk expensive litigation for wanting to pursue job opportunities.

For example, a comment from a physician working in Appalachia highlights the potential real-life implications of the agreements. “With hospital systems merging, providers with aggressive noncompetes must abandon the community that they serve if they [choose] to leave their employer. Healthcare providers feel trapped in their current employment situation, leading to significant burnout that can shorten their [career] longevity.”

Commissioner Alvaro Bedoya said physicians have had their lives upended by cumbersome noncompetes, often having to move out of state to practice. “A pandemic killed a million people in this country, and there are doctors who cannot work because of a noncompete,” he said.

It’s unclear whether physicians and others who work for nonprofit healthcare groups or hospitals will be covered by the new ban. FTC Commissioner Rebecca Slaughter acknowledged that the agency’s jurisdictional limitations mean that employees of “certain nonprofit organizations” may not benefit from the rule.

“We want to be transparent about the limitation and recognize there are workers, especially healthcare workers, who are bound by anticompetitive and unfair noncompete clauses, that our rule will struggle to reach,” she said. To cover nonprofit healthcare employees, Ms. Slaughter urged Congress to pass legislation banning noncompetes, such as the Workforce Mobility Act of 2021 and the Freedom to Compete Act of 2023.

The FTC final rule will take effect 120 days after it is published in the federal register, and new noncompete agreements will be banned as of this date. However, existing contracts for senior executives will remain in effect because these individuals are less likely to experience “acute harm” due to their ability to negotiate accordingly, said Mr. Cady.
 

States, AMA Take Aim at Noncompetes

Before the federal ban, several states had already passed legislation limiting the reach of noncompetes. According to a recent article in the Journal of the American College of Cardiology, 12 states prohibit noncompete clauses for physicians: Alabama, California, Colorado, Delaware, Massachusetts, Montana, New Hampshire, New Mexico, North Dakota, Oklahoma, Rhode Island, and South Dakota.

The remaining states allow noncompetes in some form, often excluding them for employees earning below a certain threshold. For example, in Oregon, noncompete agreements may apply to employees earning more than $113,241. Most states have provisions to adjust the threshold annually. The District of Columbia permits 2-year noncompetes for “medical specialists” earning over $250,000 annually.

Indiana employers can no longer enter into noncompete agreements with primary care providers. Other specialties may be subject to the clauses, except when the physician terminates the contract for cause or when an employer terminates the contract without cause.

Rachel Marcus, MD, a cardiologist in Washington, DC, found out how limiting her employment contract’s noncompete clause was when she wanted to leave a former position. Due to the restrictions, she told this news organization that she couldn’t work locally for a competitor for 2 years. The closest location she could seek employment without violating the agreement was Baltimore, approximately 40 miles away.

Dr. Marcus ultimately moved to another position within the same organization because of the company’s reputation for being “aggressive” in their enforcement actions.

Although the American Medical Association (AMA) does not support a total ban, its House of Delegates adopted policies last year to support the prohibition of noncompete contracts for physicians employed by for-profit or nonprofit hospitals, hospital systems, or staffing companies.
 

Challenges Await

The American Hospital Association, which opposed the proposed rule, called it “bad policy.” The decision “will likely be short-lived, with courts almost certain to stop it before it can do damage to hospitals’ ability to care for their patients and communities,” the association said in a statement.

To ease the transition to the new rule, the FTC also released a model language for employers to use when discussing the changes with their employees. “All employers need to do to comply with the rule is to stop enforcing existing noncompetes with workers other than senior executives and provide notice to such workers,” he said.

Dr. Marcus hopes the ban improves doctors’ lives. “Your employer is going to have to treat you better because they know that you can easily go across town to a place that has a higher salary, and your patient can go with you.”

A version of this article appeared on Medscape.com.

The Federal Trade Commission (FTC) voted Tuesday to ban noncompete agreements, possibly making it easier for doctors to switch employers without having to leave their communities and patients behind. But business groups have vowed to challenge the decision in court.

The proposed final rule passed on a 3-2 vote, with the dissenting commissioners disputing the FTC’s authority to broadly ban noncompetes.

Tensions around noncompetes have been building for years. In 2021, President Biden issued an executive order supporting measures to improve economic competition, in which he urged the FTC to consider its rulemaking authority to address noncompete clauses that unfairly limit workers’ mobility. In January 2023, per that directive, the agency proposed ending the restrictive covenants.

While the FTC estimates that the final rule will reduce healthcare costs by up to $194 billion over the next decade and increase worker earnings by $300 million annually, the ruling faces legal hurdles.

US Chamber of Commerce president and CEO Suzanne P. Clark said in a statement that the move is a “blatant power grab” that will undermine competitive business practices, adding that the Chamber will sue to block the measure.

The FTC received more than 26,000 comments on noncompetes during the public feedback period, with about 25,000 supporting the measure, said Benjamin Cady, JD, an FTC attorney.

Mr. Cady called the feedback “compelling,” citing instances of workers who were forced to commute long distances, uproot their families, or risk expensive litigation for wanting to pursue job opportunities.

For example, a comment from a physician working in Appalachia highlights the potential real-life implications of the agreements. “With hospital systems merging, providers with aggressive noncompetes must abandon the community that they serve if they [choose] to leave their employer. Healthcare providers feel trapped in their current employment situation, leading to significant burnout that can shorten their [career] longevity.”

Commissioner Alvaro Bedoya said physicians have had their lives upended by cumbersome noncompetes, often having to move out of state to practice. “A pandemic killed a million people in this country, and there are doctors who cannot work because of a noncompete,” he said.

It’s unclear whether physicians and others who work for nonprofit healthcare groups or hospitals will be covered by the new ban. FTC Commissioner Rebecca Slaughter acknowledged that the agency’s jurisdictional limitations mean that employees of “certain nonprofit organizations” may not benefit from the rule.

“We want to be transparent about the limitation and recognize there are workers, especially healthcare workers, who are bound by anticompetitive and unfair noncompete clauses, that our rule will struggle to reach,” she said. To cover nonprofit healthcare employees, Ms. Slaughter urged Congress to pass legislation banning noncompetes, such as the Workforce Mobility Act of 2021 and the Freedom to Compete Act of 2023.

The FTC final rule will take effect 120 days after it is published in the federal register, and new noncompete agreements will be banned as of this date. However, existing contracts for senior executives will remain in effect because these individuals are less likely to experience “acute harm” due to their ability to negotiate accordingly, said Mr. Cady.
 

States, AMA Take Aim at Noncompetes

Before the federal ban, several states had already passed legislation limiting the reach of noncompetes. According to a recent article in the Journal of the American College of Cardiology, 12 states prohibit noncompete clauses for physicians: Alabama, California, Colorado, Delaware, Massachusetts, Montana, New Hampshire, New Mexico, North Dakota, Oklahoma, Rhode Island, and South Dakota.

The remaining states allow noncompetes in some form, often excluding them for employees earning below a certain threshold. For example, in Oregon, noncompete agreements may apply to employees earning more than $113,241. Most states have provisions to adjust the threshold annually. The District of Columbia permits 2-year noncompetes for “medical specialists” earning over $250,000 annually.

Indiana employers can no longer enter into noncompete agreements with primary care providers. Other specialties may be subject to the clauses, except when the physician terminates the contract for cause or when an employer terminates the contract without cause.

Rachel Marcus, MD, a cardiologist in Washington, DC, found out how limiting her employment contract’s noncompete clause was when she wanted to leave a former position. Due to the restrictions, she told this news organization that she couldn’t work locally for a competitor for 2 years. The closest location she could seek employment without violating the agreement was Baltimore, approximately 40 miles away.

Dr. Marcus ultimately moved to another position within the same organization because of the company’s reputation for being “aggressive” in their enforcement actions.

Although the American Medical Association (AMA) does not support a total ban, its House of Delegates adopted policies last year to support the prohibition of noncompete contracts for physicians employed by for-profit or nonprofit hospitals, hospital systems, or staffing companies.
 

Challenges Await

The American Hospital Association, which opposed the proposed rule, called it “bad policy.” The decision “will likely be short-lived, with courts almost certain to stop it before it can do damage to hospitals’ ability to care for their patients and communities,” the association said in a statement.

To ease the transition to the new rule, the FTC also released a model language for employers to use when discussing the changes with their employees. “All employers need to do to comply with the rule is to stop enforcing existing noncompetes with workers other than senior executives and provide notice to such workers,” he said.

Dr. Marcus hopes the ban improves doctors’ lives. “Your employer is going to have to treat you better because they know that you can easily go across town to a place that has a higher salary, and your patient can go with you.”

A version of this article appeared on Medscape.com.

The Federal Trade Commission (FTC) voted Tuesday to ban noncompete agreements, possibly making it easier for doctors to switch employers without having to leave their communities and patients behind. But business groups have vowed to challenge the decision in court.

The proposed final rule passed on a 3-2 vote, with the dissenting commissioners disputing the FTC’s authority to broadly ban noncompetes.

Tensions around noncompetes have been building for years. In 2021, President Biden issued an executive order supporting measures to improve economic competition, in which he urged the FTC to consider its rulemaking authority to address noncompete clauses that unfairly limit workers’ mobility. In January 2023, per that directive, the agency proposed ending the restrictive covenants.

While the FTC estimates that the final rule will reduce healthcare costs by up to $194 billion over the next decade and increase worker earnings by $300 million annually, the ruling faces legal hurdles.

US Chamber of Commerce president and CEO Suzanne P. Clark said in a statement that the move is a “blatant power grab” that will undermine competitive business practices, adding that the Chamber will sue to block the measure.

The FTC received more than 26,000 comments on noncompetes during the public feedback period, with about 25,000 supporting the measure, said Benjamin Cady, JD, an FTC attorney.

Mr. Cady called the feedback “compelling,” citing instances of workers who were forced to commute long distances, uproot their families, or risk expensive litigation for wanting to pursue job opportunities.

For example, a comment from a physician working in Appalachia highlights the potential real-life implications of the agreements. “With hospital systems merging, providers with aggressive noncompetes must abandon the community that they serve if they [choose] to leave their employer. Healthcare providers feel trapped in their current employment situation, leading to significant burnout that can shorten their [career] longevity.”

Commissioner Alvaro Bedoya said physicians have had their lives upended by cumbersome noncompetes, often having to move out of state to practice. “A pandemic killed a million people in this country, and there are doctors who cannot work because of a noncompete,” he said.

It’s unclear whether physicians and others who work for nonprofit healthcare groups or hospitals will be covered by the new ban. FTC Commissioner Rebecca Slaughter acknowledged that the agency’s jurisdictional limitations mean that employees of “certain nonprofit organizations” may not benefit from the rule.

“We want to be transparent about the limitation and recognize there are workers, especially healthcare workers, who are bound by anticompetitive and unfair noncompete clauses, that our rule will struggle to reach,” she said. To cover nonprofit healthcare employees, Ms. Slaughter urged Congress to pass legislation banning noncompetes, such as the Workforce Mobility Act of 2021 and the Freedom to Compete Act of 2023.

The FTC final rule will take effect 120 days after it is published in the federal register, and new noncompete agreements will be banned as of this date. However, existing contracts for senior executives will remain in effect because these individuals are less likely to experience “acute harm” due to their ability to negotiate accordingly, said Mr. Cady.
 

States, AMA Take Aim at Noncompetes

Before the federal ban, several states had already passed legislation limiting the reach of noncompetes. According to a recent article in the Journal of the American College of Cardiology, 12 states prohibit noncompete clauses for physicians: Alabama, California, Colorado, Delaware, Massachusetts, Montana, New Hampshire, New Mexico, North Dakota, Oklahoma, Rhode Island, and South Dakota.

The remaining states allow noncompetes in some form, often excluding them for employees earning below a certain threshold. For example, in Oregon, noncompete agreements may apply to employees earning more than $113,241. Most states have provisions to adjust the threshold annually. The District of Columbia permits 2-year noncompetes for “medical specialists” earning over $250,000 annually.

Indiana employers can no longer enter into noncompete agreements with primary care providers. Other specialties may be subject to the clauses, except when the physician terminates the contract for cause or when an employer terminates the contract without cause.

Rachel Marcus, MD, a cardiologist in Washington, DC, found out how limiting her employment contract’s noncompete clause was when she wanted to leave a former position. Due to the restrictions, she told this news organization that she couldn’t work locally for a competitor for 2 years. The closest location she could seek employment without violating the agreement was Baltimore, approximately 40 miles away.

Dr. Marcus ultimately moved to another position within the same organization because of the company’s reputation for being “aggressive” in their enforcement actions.

Although the American Medical Association (AMA) does not support a total ban, its House of Delegates adopted policies last year to support the prohibition of noncompete contracts for physicians employed by for-profit or nonprofit hospitals, hospital systems, or staffing companies.
 

Challenges Await

The American Hospital Association, which opposed the proposed rule, called it “bad policy.” The decision “will likely be short-lived, with courts almost certain to stop it before it can do damage to hospitals’ ability to care for their patients and communities,” the association said in a statement.

To ease the transition to the new rule, the FTC also released a model language for employers to use when discussing the changes with their employees. “All employers need to do to comply with the rule is to stop enforcing existing noncompetes with workers other than senior executives and provide notice to such workers,” he said.

Dr. Marcus hopes the ban improves doctors’ lives. “Your employer is going to have to treat you better because they know that you can easily go across town to a place that has a higher salary, and your patient can go with you.”

A version of this article appeared on Medscape.com.

SAN DIEGO — When should patients with advanced or metastatic non–small cell lung cancer receive osimertinib plus platinum-based chemotherapy in the frontline setting and when is osimertinib enough on its own?

That is a question brewing among some oncologists now that the US Food and Drug Administration (FDA) has approved osimertinib (Tagrisso, AstraZeneca) for both indications in patients with epidermal growth factor receptor (EGFR) mutations.

An answer began to emerge in research presented at the American Association for Cancer Research annual meeting.

An exploratory analysis of the FLAURA2 trial found that, when patients have EGFR mutations on baseline circulating tumor DNA (ctDNA) testing, the combination treatment can extend progression-free survival (PFS). In this patient group, those receiving osimertinib alongside pemetrexed plus cisplatin or carboplatin had a 9-month PFS advantage compared with those who received osimertinib alone.

Conversely, when patients do not have EGFR mutations following baseline ctDNA testing, osimertinib alone appears to offer similar PFS outcomes to the combination therapy, but with less toxicity.

“Baseline detection of plasma EGFR mutations may identify a subgroup of patients who derive most benefit from the addition of platinum-pemetrexed to osimertinib as first-line treatment of EGFR-mutated advance non–small cell lung cancer,” investigator Pasi A. Jänne, MD, PhD, a lung cancer oncologist at the Dana-Farber Cancer Institute, Boston, said during his presentation.

The FLAURA2 trial randomized 557 patients equally to daily osimertinib either alone or with pemetrexed plus cisplatin or carboplatin every 3 weeks for four cycles followed by pemetrexed every 3 weeks until disease progression or unacceptable toxicity.

Patients were tested for Ex19del or L858R EGFR mutations at baseline and at 3 and 6 weeks; baseline mutations were found in 73% of evaluable patients.

In patients with baseline mutations, the median PFS was 24.8 months with the combination therapy vs 13.9 months with osimertinib alone (hazard ratio [HR], 0.60).

In patients without baseline mutations, the median PFS was similar in both groups — 33.3 months with the combination vs 30.3 months with monotherapy (HR, 0.93; 95% CI, 0.51-1.72).

The investigators also found that having baseline mutations was associated with worse outcomes regardless of study arm, and mutation clearance was associated with improved outcomes. Clearance occurred more quickly among patients receiving the combination treatment, but almost 90% of patients in both arms cleared their mutations by week 6.

“As we move forward and think about which of our patients we would treat with the combination ... the presence of baseline EGFR mutations in ctDNA may be one of the features that goes into the conversation,” Dr. Jänne said.

Study discussant Marina Chiara Garassino, MD, a thoracic oncologist at the University of Chicago, agreed that this trial can help oncologists make this kind of treatment decision.

Patients with baseline EGFR mutations also tended to have larger tumors, more brain metastases, and worse performance scores; the combination therapy makes sense when such factors are present in patients with baseline EGFR mutations, Dr. Garassino said.

The wrinkle in the findings is that the study used digital droplet polymerase chain reaction (Biodesix) to test for EGFR mutations, which is not commonly used. Clinicians often use next-generation sequencing, which is less sensitive and can lead to false negatives.

It makes it difficult to know how to apply the findings to everyday practice, but Janne hopes a study will be done to correlate next-generation sequencing detection with outcomes.

The study was funded by AstraZeneca, maker of osimertinib, and researchers included AstraZeneca employees. Dr. Jänne is a consultant for and reported research funding from the company. He is a co-inventor on an EGFR mutations patent. Dr. Garassino is also an AstraZeneca consultant and reported institutional financial interests in the company.
 

A version of this article appeared on Medscape.com.

SAN DIEGO — When should patients with advanced or metastatic non–small cell lung cancer receive osimertinib plus platinum-based chemotherapy in the frontline setting and when is osimertinib enough on its own?

That is a question brewing among some oncologists now that the US Food and Drug Administration (FDA) has approved osimertinib (Tagrisso, AstraZeneca) for both indications in patients with epidermal growth factor receptor (EGFR) mutations.

An answer began to emerge in research presented at the American Association for Cancer Research annual meeting.

An exploratory analysis of the FLAURA2 trial found that, when patients have EGFR mutations on baseline circulating tumor DNA (ctDNA) testing, the combination treatment can extend progression-free survival (PFS). In this patient group, those receiving osimertinib alongside pemetrexed plus cisplatin or carboplatin had a 9-month PFS advantage compared with those who received osimertinib alone.

Conversely, when patients do not have EGFR mutations following baseline ctDNA testing, osimertinib alone appears to offer similar PFS outcomes to the combination therapy, but with less toxicity.

“Baseline detection of plasma EGFR mutations may identify a subgroup of patients who derive most benefit from the addition of platinum-pemetrexed to osimertinib as first-line treatment of EGFR-mutated advance non–small cell lung cancer,” investigator Pasi A. Jänne, MD, PhD, a lung cancer oncologist at the Dana-Farber Cancer Institute, Boston, said during his presentation.

The FLAURA2 trial randomized 557 patients equally to daily osimertinib either alone or with pemetrexed plus cisplatin or carboplatin every 3 weeks for four cycles followed by pemetrexed every 3 weeks until disease progression or unacceptable toxicity.

Patients were tested for Ex19del or L858R EGFR mutations at baseline and at 3 and 6 weeks; baseline mutations were found in 73% of evaluable patients.

In patients with baseline mutations, the median PFS was 24.8 months with the combination therapy vs 13.9 months with osimertinib alone (hazard ratio [HR], 0.60).

In patients without baseline mutations, the median PFS was similar in both groups — 33.3 months with the combination vs 30.3 months with monotherapy (HR, 0.93; 95% CI, 0.51-1.72).

The investigators also found that having baseline mutations was associated with worse outcomes regardless of study arm, and mutation clearance was associated with improved outcomes. Clearance occurred more quickly among patients receiving the combination treatment, but almost 90% of patients in both arms cleared their mutations by week 6.

“As we move forward and think about which of our patients we would treat with the combination ... the presence of baseline EGFR mutations in ctDNA may be one of the features that goes into the conversation,” Dr. Jänne said.

Study discussant Marina Chiara Garassino, MD, a thoracic oncologist at the University of Chicago, agreed that this trial can help oncologists make this kind of treatment decision.

Patients with baseline EGFR mutations also tended to have larger tumors, more brain metastases, and worse performance scores; the combination therapy makes sense when such factors are present in patients with baseline EGFR mutations, Dr. Garassino said.

The wrinkle in the findings is that the study used digital droplet polymerase chain reaction (Biodesix) to test for EGFR mutations, which is not commonly used. Clinicians often use next-generation sequencing, which is less sensitive and can lead to false negatives.

It makes it difficult to know how to apply the findings to everyday practice, but Janne hopes a study will be done to correlate next-generation sequencing detection with outcomes.

The study was funded by AstraZeneca, maker of osimertinib, and researchers included AstraZeneca employees. Dr. Jänne is a consultant for and reported research funding from the company. He is a co-inventor on an EGFR mutations patent. Dr. Garassino is also an AstraZeneca consultant and reported institutional financial interests in the company.
 

A version of this article appeared on Medscape.com.

SAN DIEGO — When should patients with advanced or metastatic non–small cell lung cancer receive osimertinib plus platinum-based chemotherapy in the frontline setting and when is osimertinib enough on its own?

That is a question brewing among some oncologists now that the US Food and Drug Administration (FDA) has approved osimertinib (Tagrisso, AstraZeneca) for both indications in patients with epidermal growth factor receptor (EGFR) mutations.

An answer began to emerge in research presented at the American Association for Cancer Research annual meeting.

An exploratory analysis of the FLAURA2 trial found that, when patients have EGFR mutations on baseline circulating tumor DNA (ctDNA) testing, the combination treatment can extend progression-free survival (PFS). In this patient group, those receiving osimertinib alongside pemetrexed plus cisplatin or carboplatin had a 9-month PFS advantage compared with those who received osimertinib alone.

Conversely, when patients do not have EGFR mutations following baseline ctDNA testing, osimertinib alone appears to offer similar PFS outcomes to the combination therapy, but with less toxicity.

“Baseline detection of plasma EGFR mutations may identify a subgroup of patients who derive most benefit from the addition of platinum-pemetrexed to osimertinib as first-line treatment of EGFR-mutated advance non–small cell lung cancer,” investigator Pasi A. Jänne, MD, PhD, a lung cancer oncologist at the Dana-Farber Cancer Institute, Boston, said during his presentation.

The FLAURA2 trial randomized 557 patients equally to daily osimertinib either alone or with pemetrexed plus cisplatin or carboplatin every 3 weeks for four cycles followed by pemetrexed every 3 weeks until disease progression or unacceptable toxicity.

Patients were tested for Ex19del or L858R EGFR mutations at baseline and at 3 and 6 weeks; baseline mutations were found in 73% of evaluable patients.

In patients with baseline mutations, the median PFS was 24.8 months with the combination therapy vs 13.9 months with osimertinib alone (hazard ratio [HR], 0.60).

In patients without baseline mutations, the median PFS was similar in both groups — 33.3 months with the combination vs 30.3 months with monotherapy (HR, 0.93; 95% CI, 0.51-1.72).

The investigators also found that having baseline mutations was associated with worse outcomes regardless of study arm, and mutation clearance was associated with improved outcomes. Clearance occurred more quickly among patients receiving the combination treatment, but almost 90% of patients in both arms cleared their mutations by week 6.

“As we move forward and think about which of our patients we would treat with the combination ... the presence of baseline EGFR mutations in ctDNA may be one of the features that goes into the conversation,” Dr. Jänne said.

Study discussant Marina Chiara Garassino, MD, a thoracic oncologist at the University of Chicago, agreed that this trial can help oncologists make this kind of treatment decision.

Patients with baseline EGFR mutations also tended to have larger tumors, more brain metastases, and worse performance scores; the combination therapy makes sense when such factors are present in patients with baseline EGFR mutations, Dr. Garassino said.

The wrinkle in the findings is that the study used digital droplet polymerase chain reaction (Biodesix) to test for EGFR mutations, which is not commonly used. Clinicians often use next-generation sequencing, which is less sensitive and can lead to false negatives.

It makes it difficult to know how to apply the findings to everyday practice, but Janne hopes a study will be done to correlate next-generation sequencing detection with outcomes.

The study was funded by AstraZeneca, maker of osimertinib, and researchers included AstraZeneca employees. Dr. Jänne is a consultant for and reported research funding from the company. He is a co-inventor on an EGFR mutations patent. Dr. Garassino is also an AstraZeneca consultant and reported institutional financial interests in the company.
 

A version of this article appeared on Medscape.com.

The US Food and Drug Administration (FDA) has approved the first-in-class interleukin (IL)-15 superagonist nogapendekin alfa inbakicept-pmln (Anktiva), plus bacillus Calmette-Guérin (BCG), for the treatment of certain non–muscle-invasive bladder cancers that fail to respond to BCG alone.

Specifically, the agent is approved to treat patients with BCG-unresponsive non–muscle-invasive bladder cancer carcinoma in situ with or without Ta or T1 papillary disease. 

The FDA declined an initial approval for the combination in May 2023 because of deficiencies the agency observed during its prelicense inspection of third-party manufacturing organizations. In October 2023, ImmunityBio resubmitted the Biologics License Application, which was accepted.

The new therapy represents addresses “an unmet need” in this high-risk bladder cancer population, the company stated in a press release announcing the initial study findings. Typically, patients with intermediate or high-risk disease undergo bladder tumor resection followed by treatment with BCG, but the cancer recurs in up to 50% of patients, including those who experience a complete response, explained ImmunityBio, which acquired Altor BioScience. 

Approval was based on findings from the single arm, phase 2/3 open-label QUILT-3.032 study, which included 77 patients with BCG-unresponsive, high-risk disease following transurethral resection. All had Eastern Cooperative Oncology Group performance status of 0-2. 

Patients received nogapendekin alfa inbakicept-pmln induction via intravesical instillation with BCG followed by maintenance therapy for up to 37 months. 

According to the FDA’s press release, 62% of patients had a complete response, defined as a negative cystoscopy and urine cytology; 58% of those with a complete response had a duration of response lasting at least 12 months and 40% had a duration of response lasting 24 months or longer.

The safety of the combination was evaluated in a cohort of 88 patients. Serious adverse reactions occurred in 16% of patients. The most common treatment-emergent adverse effects included dysuria, pollakiuria, and hematuria, which are associated with intravesical BCG; 86% of these events were grade 1 or 2. Overall, 7% of patients discontinued the combination owing to adverse reactions.

The recommended dose is 400 mcg administered intravesically with BCG once a week for 6 weeks as induction therapy, with an option for a second induction course if patients don’t achieve a complete response at 3 months. The recommended maintenance therapy dose is 400 mcg with BCG once a week for 3 weeks at months 4, 7, 10, 13, and 19. Patients who achieve a complete response at 25 months and beyond may receive maintenance instillations with BCG once a week for 3 weeks at months 25, 31, and 37. The maximum treatment duration is 37 months.

The FDA recommends discontinuing treatment if disease persists after second induction or owing to disease recurrence, progression, or unacceptable toxicity. 
 

A version of this article appeared on Medscape.com.

The US Food and Drug Administration (FDA) has approved the first-in-class interleukin (IL)-15 superagonist nogapendekin alfa inbakicept-pmln (Anktiva), plus bacillus Calmette-Guérin (BCG), for the treatment of certain non–muscle-invasive bladder cancers that fail to respond to BCG alone.

Specifically, the agent is approved to treat patients with BCG-unresponsive non–muscle-invasive bladder cancer carcinoma in situ with or without Ta or T1 papillary disease. 

The FDA declined an initial approval for the combination in May 2023 because of deficiencies the agency observed during its prelicense inspection of third-party manufacturing organizations. In October 2023, ImmunityBio resubmitted the Biologics License Application, which was accepted.

The new therapy represents addresses “an unmet need” in this high-risk bladder cancer population, the company stated in a press release announcing the initial study findings. Typically, patients with intermediate or high-risk disease undergo bladder tumor resection followed by treatment with BCG, but the cancer recurs in up to 50% of patients, including those who experience a complete response, explained ImmunityBio, which acquired Altor BioScience. 

Approval was based on findings from the single arm, phase 2/3 open-label QUILT-3.032 study, which included 77 patients with BCG-unresponsive, high-risk disease following transurethral resection. All had Eastern Cooperative Oncology Group performance status of 0-2. 

Patients received nogapendekin alfa inbakicept-pmln induction via intravesical instillation with BCG followed by maintenance therapy for up to 37 months. 

According to the FDA’s press release, 62% of patients had a complete response, defined as a negative cystoscopy and urine cytology; 58% of those with a complete response had a duration of response lasting at least 12 months and 40% had a duration of response lasting 24 months or longer.

The safety of the combination was evaluated in a cohort of 88 patients. Serious adverse reactions occurred in 16% of patients. The most common treatment-emergent adverse effects included dysuria, pollakiuria, and hematuria, which are associated with intravesical BCG; 86% of these events were grade 1 or 2. Overall, 7% of patients discontinued the combination owing to adverse reactions.

The recommended dose is 400 mcg administered intravesically with BCG once a week for 6 weeks as induction therapy, with an option for a second induction course if patients don’t achieve a complete response at 3 months. The recommended maintenance therapy dose is 400 mcg with BCG once a week for 3 weeks at months 4, 7, 10, 13, and 19. Patients who achieve a complete response at 25 months and beyond may receive maintenance instillations with BCG once a week for 3 weeks at months 25, 31, and 37. The maximum treatment duration is 37 months.

The FDA recommends discontinuing treatment if disease persists after second induction or owing to disease recurrence, progression, or unacceptable toxicity. 
 

A version of this article appeared on Medscape.com.

The US Food and Drug Administration (FDA) has approved the first-in-class interleukin (IL)-15 superagonist nogapendekin alfa inbakicept-pmln (Anktiva), plus bacillus Calmette-Guérin (BCG), for the treatment of certain non–muscle-invasive bladder cancers that fail to respond to BCG alone.

Specifically, the agent is approved to treat patients with BCG-unresponsive non–muscle-invasive bladder cancer carcinoma in situ with or without Ta or T1 papillary disease. 

The FDA declined an initial approval for the combination in May 2023 because of deficiencies the agency observed during its prelicense inspection of third-party manufacturing organizations. In October 2023, ImmunityBio resubmitted the Biologics License Application, which was accepted.

The new therapy represents addresses “an unmet need” in this high-risk bladder cancer population, the company stated in a press release announcing the initial study findings. Typically, patients with intermediate or high-risk disease undergo bladder tumor resection followed by treatment with BCG, but the cancer recurs in up to 50% of patients, including those who experience a complete response, explained ImmunityBio, which acquired Altor BioScience. 

Approval was based on findings from the single arm, phase 2/3 open-label QUILT-3.032 study, which included 77 patients with BCG-unresponsive, high-risk disease following transurethral resection. All had Eastern Cooperative Oncology Group performance status of 0-2. 

Patients received nogapendekin alfa inbakicept-pmln induction via intravesical instillation with BCG followed by maintenance therapy for up to 37 months. 

According to the FDA’s press release, 62% of patients had a complete response, defined as a negative cystoscopy and urine cytology; 58% of those with a complete response had a duration of response lasting at least 12 months and 40% had a duration of response lasting 24 months or longer.

The safety of the combination was evaluated in a cohort of 88 patients. Serious adverse reactions occurred in 16% of patients. The most common treatment-emergent adverse effects included dysuria, pollakiuria, and hematuria, which are associated with intravesical BCG; 86% of these events were grade 1 or 2. Overall, 7% of patients discontinued the combination owing to adverse reactions.

The recommended dose is 400 mcg administered intravesically with BCG once a week for 6 weeks as induction therapy, with an option for a second induction course if patients don’t achieve a complete response at 3 months. The recommended maintenance therapy dose is 400 mcg with BCG once a week for 3 weeks at months 4, 7, 10, 13, and 19. Patients who achieve a complete response at 25 months and beyond may receive maintenance instillations with BCG once a week for 3 weeks at months 25, 31, and 37. The maximum treatment duration is 37 months.

The FDA recommends discontinuing treatment if disease persists after second induction or owing to disease recurrence, progression, or unacceptable toxicity. 
 

A version of this article appeared on Medscape.com.

The latest research supports immune checkpoint inhibitor therapy for clear cell and non–clear cell renal cell carcinoma, but patient selection is key to optimize outcomes, according to a medical oncologist from the Dana-Farber Cancer Institute, Boston.

Michael Serzan, MD, who works in the Lank Center for Genitourinary Oncology at the institute, stated this at the 2024 National Comprehensive Cancer Network Annual Conference, during a presentation.

A systematic review and meta-analysis published in 2022 in European Urology Open Science summarized six randomized controlled trials with a total of 5121 adult patients. In the review, the researchers found that immune checkpoint inhibitors plus vascular endothelial growth factor tyrosine kinase inhibitors (VEGF TKI) were associated with consistent improvements across all risk groups for metastatic renal cell carcinoma.

Additional newer research supports the use of immunotherapy combinations or other immunotherapy plus tyrosine kinase inhibitors as first-line or adjuvant treatments for renal cell carcinoma, Dr. Serzan said during an interview. However, more genomic and histology-directed therapies are needed, he noted.
 

Tips for Evaluating Risk When Treating Renal Cell Carcinoma?

For patients with localized clear cell renal cell carcinoma who have undergone partial or radical nephrectomy, there are several models that estimate the risk of recurrence based on pathologic tumor stage, grade, histology, invasion, and the extent of necrosis, Dr. Serzan said. These models can help guide selection of patients who may be at high risk of recurrence and, therefore, may benefit from adjuvant therapy.

For patients with metastatic clear cell renal cell carcinoma, the IMDC and MSKCC prognostic models stratify patients to favorable, intermediate, and poor risk groups based on clinical and lab factors. The IMDC risk stratification model is used as a prognostic model to stratify patients diagnosed with metastatic kidney cancer, Dr. Serzan said.
 

What Research Supports Treatments for Clear Cell and Non–Clear Cell Renal Cell Carcinoma?

The US Food and Drug Administration (FDA) approved pembrolizumab in 2021 for the adjuvant treatment of renal cell carcinoma (RCC) in patients with intermediate-risk or high-risk of recurrence after nephrectomy or after nephrectomy and resection of metastatic lesions.

Pembrolizumab is the first adjuvant therapy shown to significantly improve overall survival in these patients, Dr. Serzan said. In the KEYNOTE-564 study, published in 2024 in the Journal of Clinical Oncology, pembrolizumab demonstrated an improvement in disease free survival as well as overall survival when compared with placebo.

Several similar studies of adjuvant immune checkpoint inhibitors for renal cell carcinoma involving atezolizumab vs. placebo, nivolumab plus ipilimumab vs. placebo, and nivolumab vs. observation have not shown significant benefits in terms of disease-free survival, Dr. Serzan noted.

The current NCCN Clinical Practice Guidelines in Oncology for Kidney Cancer (Version: 3.2024), which were updated this year, support the use of adjuvant pembrolizumab for patients with stage II, III, or IV clear cell renal cell carcinoma after partial or radical nephrectomy, he said.

Looking ahead, biomarkers are needed to understand the risk of recurrence, and which patients benefit from adjuvant pembrolizumab, Dr. Serzan added.
 

Where Do VEGF-TKIs Fit In?

VEGF is a treatment target for renal cancer, and angiogenesis inhibition with VEGF TKIs continues to be a subject for study, Dr. Serzan said. In the CABOSUN study, published in the Journal of Clinical Oncology in 2017, patients were randomized to cabozantinib or sunitinib. Progression-free survival was significantly greater in the cabozantinib group, but overall survival was similar between the groups.

In another randomized trial, the CheckMate 214 study, patients received either sunitinib or a combination of nivolumab plus ipilimumab in four doses given every 3 weeks, followed by nivolumab alone every 2 weeks, and these patients were stratified by risk, Dr. Serzan noted.

The median progression-free survival was 12.4 months in the combination group vs. 8.5 months in the sunitinib group for patients at intermediate or poor risk of recurrence. The median progression-free survival was significantly greater in sunitinib patients with favorable risk vs. combination patients with favorable risk (28.9 months vs. 12.4 months).

Overall survival was higher for all patients with combination therapy vs. sunitinib regardless of risk stratification.

Dr. Serzan reviewed the pros of VEGF/PD1 (programmed death-ligand 1) combinations as including a high response rate (generally 52%-72%) and a low rate of primary progressive disease (5%-12%), as well as favorable progression-free and overall survival and low rates of immune-related adverse events.

However, cons of this treatment include lack of data on treatment-free survival as well as the decrease in progression-free survival and overall survival hazard ratios over time and potential chronic VEGF/TKI toxicities, he said.
 

What Treatments Are Recommended for Metastatic Clear Cell Renal Cell Carcinoma Now?

Clear cell renal cell carcinoma (ccRCC) is the most prevalent histological subtype of kidney cancer, accounting for 70%-75% of cases, and these patients are prone to metastasis, recurrence, and resistance to radiotherapy and chemotherapy, according to authors of a recent review published in Frontiers in Oncology.

Dr. Serzan shared his preferred protocol for treatment-naive metastatic ccRCC patients, based on the NCCN guidelines for Kidney Cancer (Version: 3.2024) that had been updated in 2024.

For those with sarcomatoid features, he favors the use of nivolumab/ipilimumab combination, while those without sarcomatoid features, if highly symptomatic, may be treated with any of several combinations: nivolumab/ipilimumab, axitinib/pembrolizumab, cabozantinib/nivolumab, or lenvatinib/pembrolizumab.

For asymptomatic patients without sarcomatoid features, treatment depends on eligibility for immune checkpoint inhibitors or ipilimumab, Dr. Serzan said. His first choice for those eligible is nivolumab/ipilimumab; those not eligible for ipilimumab could receive nivolumab, pembrolizumab, axitinib/pembrolizumab, cabozantinib/nivolumab, or lenvatinib/pembrolizumab.

For patients not eligible for ICIs because of uncontrolled autoimmune disease, or high-dose glucocorticoids, Dr. Serzan recommended treatment with cabozantinib, lenvatinib/everolimus, pazopanib, or sunitinib.
 

What are Some Takeaway Points About Immunotherapy and Renal Cell Carcinoma?

“Immunotherapy has revolutionized treatment for renal cell carcinoma, with significant increases in overall survival, and a small but consistent cure fraction that was unimaginable 10 years ago,” Eric Jonasch, MD, of The University of Texas MD Anderson Cancer Center and vice-chair of the NCCN Guidelines Panel for Kidney Cancer, said in an interview.

However, challenges to implementing new treatments in clinical practice are ongoing, he said. The major challenges facing clinicians, patients, and their families include the cost of therapy, logistics of treatment administration, and managing toxicities, Dr. Jonasch said.  

Patient selection is key to optimize outcomes with immunotherapy, and shared decision-making is essential to ensure that choice of therapy matches patient expectations and needs — and to maintain clear and open channels of communication while patients are on therapy, Dr. Jonasch said. “In my clinic, we empower patients to take treatment breaks to manage side effects, thereby optimizing quality of life while maintaining treatment efficacy,” he said.

Although significant progress has been made in managing renal cell carcinoma, more research is needed to increase the proportion of patients cured, said Dr. Jonasch. “A clearer understanding of the determinants of response and resistance, which will be driven by information rich clinical trials, will help move us in that direction,” he said.

Dr. Serzan had no financial conflicts to disclose. Dr. Jonasch disclosed research support from AbbVie, Arrowhead, Aveo, BMS, Corvus, Merck, NiKang, ProfoundBio, and Telix, as well as honoraria from Aveo, Eisai, Exelixis, GlaxoSmithKline, Ipsen, Merck, Novartis, NiKang, and Takeda.

The latest research supports immune checkpoint inhibitor therapy for clear cell and non–clear cell renal cell carcinoma, but patient selection is key to optimize outcomes, according to a medical oncologist from the Dana-Farber Cancer Institute, Boston.

Michael Serzan, MD, who works in the Lank Center for Genitourinary Oncology at the institute, stated this at the 2024 National Comprehensive Cancer Network Annual Conference, during a presentation.

A systematic review and meta-analysis published in 2022 in European Urology Open Science summarized six randomized controlled trials with a total of 5121 adult patients. In the review, the researchers found that immune checkpoint inhibitors plus vascular endothelial growth factor tyrosine kinase inhibitors (VEGF TKI) were associated with consistent improvements across all risk groups for metastatic renal cell carcinoma.

Additional newer research supports the use of immunotherapy combinations or other immunotherapy plus tyrosine kinase inhibitors as first-line or adjuvant treatments for renal cell carcinoma, Dr. Serzan said during an interview. However, more genomic and histology-directed therapies are needed, he noted.
 

Tips for Evaluating Risk When Treating Renal Cell Carcinoma?

For patients with localized clear cell renal cell carcinoma who have undergone partial or radical nephrectomy, there are several models that estimate the risk of recurrence based on pathologic tumor stage, grade, histology, invasion, and the extent of necrosis, Dr. Serzan said. These models can help guide selection of patients who may be at high risk of recurrence and, therefore, may benefit from adjuvant therapy.

For patients with metastatic clear cell renal cell carcinoma, the IMDC and MSKCC prognostic models stratify patients to favorable, intermediate, and poor risk groups based on clinical and lab factors. The IMDC risk stratification model is used as a prognostic model to stratify patients diagnosed with metastatic kidney cancer, Dr. Serzan said.
 

What Research Supports Treatments for Clear Cell and Non–Clear Cell Renal Cell Carcinoma?

The US Food and Drug Administration (FDA) approved pembrolizumab in 2021 for the adjuvant treatment of renal cell carcinoma (RCC) in patients with intermediate-risk or high-risk of recurrence after nephrectomy or after nephrectomy and resection of metastatic lesions.

Pembrolizumab is the first adjuvant therapy shown to significantly improve overall survival in these patients, Dr. Serzan said. In the KEYNOTE-564 study, published in 2024 in the Journal of Clinical Oncology, pembrolizumab demonstrated an improvement in disease free survival as well as overall survival when compared with placebo.

Several similar studies of adjuvant immune checkpoint inhibitors for renal cell carcinoma involving atezolizumab vs. placebo, nivolumab plus ipilimumab vs. placebo, and nivolumab vs. observation have not shown significant benefits in terms of disease-free survival, Dr. Serzan noted.

The current NCCN Clinical Practice Guidelines in Oncology for Kidney Cancer (Version: 3.2024), which were updated this year, support the use of adjuvant pembrolizumab for patients with stage II, III, or IV clear cell renal cell carcinoma after partial or radical nephrectomy, he said.

Looking ahead, biomarkers are needed to understand the risk of recurrence, and which patients benefit from adjuvant pembrolizumab, Dr. Serzan added.
 

Where Do VEGF-TKIs Fit In?

VEGF is a treatment target for renal cancer, and angiogenesis inhibition with VEGF TKIs continues to be a subject for study, Dr. Serzan said. In the CABOSUN study, published in the Journal of Clinical Oncology in 2017, patients were randomized to cabozantinib or sunitinib. Progression-free survival was significantly greater in the cabozantinib group, but overall survival was similar between the groups.

In another randomized trial, the CheckMate 214 study, patients received either sunitinib or a combination of nivolumab plus ipilimumab in four doses given every 3 weeks, followed by nivolumab alone every 2 weeks, and these patients were stratified by risk, Dr. Serzan noted.

The median progression-free survival was 12.4 months in the combination group vs. 8.5 months in the sunitinib group for patients at intermediate or poor risk of recurrence. The median progression-free survival was significantly greater in sunitinib patients with favorable risk vs. combination patients with favorable risk (28.9 months vs. 12.4 months).

Overall survival was higher for all patients with combination therapy vs. sunitinib regardless of risk stratification.

Dr. Serzan reviewed the pros of VEGF/PD1 (programmed death-ligand 1) combinations as including a high response rate (generally 52%-72%) and a low rate of primary progressive disease (5%-12%), as well as favorable progression-free and overall survival and low rates of immune-related adverse events.

However, cons of this treatment include lack of data on treatment-free survival as well as the decrease in progression-free survival and overall survival hazard ratios over time and potential chronic VEGF/TKI toxicities, he said.
 

What Treatments Are Recommended for Metastatic Clear Cell Renal Cell Carcinoma Now?

Clear cell renal cell carcinoma (ccRCC) is the most prevalent histological subtype of kidney cancer, accounting for 70%-75% of cases, and these patients are prone to metastasis, recurrence, and resistance to radiotherapy and chemotherapy, according to authors of a recent review published in Frontiers in Oncology.

Dr. Serzan shared his preferred protocol for treatment-naive metastatic ccRCC patients, based on the NCCN guidelines for Kidney Cancer (Version: 3.2024) that had been updated in 2024.

For those with sarcomatoid features, he favors the use of nivolumab/ipilimumab combination, while those without sarcomatoid features, if highly symptomatic, may be treated with any of several combinations: nivolumab/ipilimumab, axitinib/pembrolizumab, cabozantinib/nivolumab, or lenvatinib/pembrolizumab.

For asymptomatic patients without sarcomatoid features, treatment depends on eligibility for immune checkpoint inhibitors or ipilimumab, Dr. Serzan said. His first choice for those eligible is nivolumab/ipilimumab; those not eligible for ipilimumab could receive nivolumab, pembrolizumab, axitinib/pembrolizumab, cabozantinib/nivolumab, or lenvatinib/pembrolizumab.

For patients not eligible for ICIs because of uncontrolled autoimmune disease, or high-dose glucocorticoids, Dr. Serzan recommended treatment with cabozantinib, lenvatinib/everolimus, pazopanib, or sunitinib.
 

What are Some Takeaway Points About Immunotherapy and Renal Cell Carcinoma?

“Immunotherapy has revolutionized treatment for renal cell carcinoma, with significant increases in overall survival, and a small but consistent cure fraction that was unimaginable 10 years ago,” Eric Jonasch, MD, of The University of Texas MD Anderson Cancer Center and vice-chair of the NCCN Guidelines Panel for Kidney Cancer, said in an interview.

However, challenges to implementing new treatments in clinical practice are ongoing, he said. The major challenges facing clinicians, patients, and their families include the cost of therapy, logistics of treatment administration, and managing toxicities, Dr. Jonasch said.  

Patient selection is key to optimize outcomes with immunotherapy, and shared decision-making is essential to ensure that choice of therapy matches patient expectations and needs — and to maintain clear and open channels of communication while patients are on therapy, Dr. Jonasch said. “In my clinic, we empower patients to take treatment breaks to manage side effects, thereby optimizing quality of life while maintaining treatment efficacy,” he said.

Although significant progress has been made in managing renal cell carcinoma, more research is needed to increase the proportion of patients cured, said Dr. Jonasch. “A clearer understanding of the determinants of response and resistance, which will be driven by information rich clinical trials, will help move us in that direction,” he said.

Dr. Serzan had no financial conflicts to disclose. Dr. Jonasch disclosed research support from AbbVie, Arrowhead, Aveo, BMS, Corvus, Merck, NiKang, ProfoundBio, and Telix, as well as honoraria from Aveo, Eisai, Exelixis, GlaxoSmithKline, Ipsen, Merck, Novartis, NiKang, and Takeda.

The latest research supports immune checkpoint inhibitor therapy for clear cell and non–clear cell renal cell carcinoma, but patient selection is key to optimize outcomes, according to a medical oncologist from the Dana-Farber Cancer Institute, Boston.

Michael Serzan, MD, who works in the Lank Center for Genitourinary Oncology at the institute, stated this at the 2024 National Comprehensive Cancer Network Annual Conference, during a presentation.

A systematic review and meta-analysis published in 2022 in European Urology Open Science summarized six randomized controlled trials with a total of 5121 adult patients. In the review, the researchers found that immune checkpoint inhibitors plus vascular endothelial growth factor tyrosine kinase inhibitors (VEGF TKI) were associated with consistent improvements across all risk groups for metastatic renal cell carcinoma.

Additional newer research supports the use of immunotherapy combinations or other immunotherapy plus tyrosine kinase inhibitors as first-line or adjuvant treatments for renal cell carcinoma, Dr. Serzan said during an interview. However, more genomic and histology-directed therapies are needed, he noted.
 

Tips for Evaluating Risk When Treating Renal Cell Carcinoma?

For patients with localized clear cell renal cell carcinoma who have undergone partial or radical nephrectomy, there are several models that estimate the risk of recurrence based on pathologic tumor stage, grade, histology, invasion, and the extent of necrosis, Dr. Serzan said. These models can help guide selection of patients who may be at high risk of recurrence and, therefore, may benefit from adjuvant therapy.

For patients with metastatic clear cell renal cell carcinoma, the IMDC and MSKCC prognostic models stratify patients to favorable, intermediate, and poor risk groups based on clinical and lab factors. The IMDC risk stratification model is used as a prognostic model to stratify patients diagnosed with metastatic kidney cancer, Dr. Serzan said.
 

What Research Supports Treatments for Clear Cell and Non–Clear Cell Renal Cell Carcinoma?

The US Food and Drug Administration (FDA) approved pembrolizumab in 2021 for the adjuvant treatment of renal cell carcinoma (RCC) in patients with intermediate-risk or high-risk of recurrence after nephrectomy or after nephrectomy and resection of metastatic lesions.

Pembrolizumab is the first adjuvant therapy shown to significantly improve overall survival in these patients, Dr. Serzan said. In the KEYNOTE-564 study, published in 2024 in the Journal of Clinical Oncology, pembrolizumab demonstrated an improvement in disease free survival as well as overall survival when compared with placebo.

Several similar studies of adjuvant immune checkpoint inhibitors for renal cell carcinoma involving atezolizumab vs. placebo, nivolumab plus ipilimumab vs. placebo, and nivolumab vs. observation have not shown significant benefits in terms of disease-free survival, Dr. Serzan noted.

The current NCCN Clinical Practice Guidelines in Oncology for Kidney Cancer (Version: 3.2024), which were updated this year, support the use of adjuvant pembrolizumab for patients with stage II, III, or IV clear cell renal cell carcinoma after partial or radical nephrectomy, he said.

Looking ahead, biomarkers are needed to understand the risk of recurrence, and which patients benefit from adjuvant pembrolizumab, Dr. Serzan added.
 

Where Do VEGF-TKIs Fit In?

VEGF is a treatment target for renal cancer, and angiogenesis inhibition with VEGF TKIs continues to be a subject for study, Dr. Serzan said. In the CABOSUN study, published in the Journal of Clinical Oncology in 2017, patients were randomized to cabozantinib or sunitinib. Progression-free survival was significantly greater in the cabozantinib group, but overall survival was similar between the groups.

In another randomized trial, the CheckMate 214 study, patients received either sunitinib or a combination of nivolumab plus ipilimumab in four doses given every 3 weeks, followed by nivolumab alone every 2 weeks, and these patients were stratified by risk, Dr. Serzan noted.

The median progression-free survival was 12.4 months in the combination group vs. 8.5 months in the sunitinib group for patients at intermediate or poor risk of recurrence. The median progression-free survival was significantly greater in sunitinib patients with favorable risk vs. combination patients with favorable risk (28.9 months vs. 12.4 months).

Overall survival was higher for all patients with combination therapy vs. sunitinib regardless of risk stratification.

Dr. Serzan reviewed the pros of VEGF/PD1 (programmed death-ligand 1) combinations as including a high response rate (generally 52%-72%) and a low rate of primary progressive disease (5%-12%), as well as favorable progression-free and overall survival and low rates of immune-related adverse events.

However, cons of this treatment include lack of data on treatment-free survival as well as the decrease in progression-free survival and overall survival hazard ratios over time and potential chronic VEGF/TKI toxicities, he said.
 

What Treatments Are Recommended for Metastatic Clear Cell Renal Cell Carcinoma Now?

Clear cell renal cell carcinoma (ccRCC) is the most prevalent histological subtype of kidney cancer, accounting for 70%-75% of cases, and these patients are prone to metastasis, recurrence, and resistance to radiotherapy and chemotherapy, according to authors of a recent review published in Frontiers in Oncology.

Dr. Serzan shared his preferred protocol for treatment-naive metastatic ccRCC patients, based on the NCCN guidelines for Kidney Cancer (Version: 3.2024) that had been updated in 2024.

For those with sarcomatoid features, he favors the use of nivolumab/ipilimumab combination, while those without sarcomatoid features, if highly symptomatic, may be treated with any of several combinations: nivolumab/ipilimumab, axitinib/pembrolizumab, cabozantinib/nivolumab, or lenvatinib/pembrolizumab.

For asymptomatic patients without sarcomatoid features, treatment depends on eligibility for immune checkpoint inhibitors or ipilimumab, Dr. Serzan said. His first choice for those eligible is nivolumab/ipilimumab; those not eligible for ipilimumab could receive nivolumab, pembrolizumab, axitinib/pembrolizumab, cabozantinib/nivolumab, or lenvatinib/pembrolizumab.

For patients not eligible for ICIs because of uncontrolled autoimmune disease, or high-dose glucocorticoids, Dr. Serzan recommended treatment with cabozantinib, lenvatinib/everolimus, pazopanib, or sunitinib.
 

What are Some Takeaway Points About Immunotherapy and Renal Cell Carcinoma?

“Immunotherapy has revolutionized treatment for renal cell carcinoma, with significant increases in overall survival, and a small but consistent cure fraction that was unimaginable 10 years ago,” Eric Jonasch, MD, of The University of Texas MD Anderson Cancer Center and vice-chair of the NCCN Guidelines Panel for Kidney Cancer, said in an interview.

However, challenges to implementing new treatments in clinical practice are ongoing, he said. The major challenges facing clinicians, patients, and their families include the cost of therapy, logistics of treatment administration, and managing toxicities, Dr. Jonasch said.  

Patient selection is key to optimize outcomes with immunotherapy, and shared decision-making is essential to ensure that choice of therapy matches patient expectations and needs — and to maintain clear and open channels of communication while patients are on therapy, Dr. Jonasch said. “In my clinic, we empower patients to take treatment breaks to manage side effects, thereby optimizing quality of life while maintaining treatment efficacy,” he said.

Although significant progress has been made in managing renal cell carcinoma, more research is needed to increase the proportion of patients cured, said Dr. Jonasch. “A clearer understanding of the determinants of response and resistance, which will be driven by information rich clinical trials, will help move us in that direction,” he said.

Dr. Serzan had no financial conflicts to disclose. Dr. Jonasch disclosed research support from AbbVie, Arrowhead, Aveo, BMS, Corvus, Merck, NiKang, ProfoundBio, and Telix, as well as honoraria from Aveo, Eisai, Exelixis, GlaxoSmithKline, Ipsen, Merck, Novartis, NiKang, and Takeda.

Pregnant physicians may receive more workplace accommodations and protection against discrimination thanks to an updated rule from the US Equal Employment Opportunity Commission (EEOC). The guidelines could prevent women from losing critical career momentum. 

The Pregnant Workers Fairness Act (PWFA) aims to help workers balance professional demands with healthy pregnancies. It requires employers to provide reasonable accommodations for a “worker’s known limitations,” including physical or mental conditions associated with “pregnancy, childbirth, or related medical conditions.”

Reasonable accommodations vary but may involve time off to attend healthcare appointments or recover from childbirth, extra breaks during a shift, shorter work hours, or the ability to sit instead of stand. Private and public sector employers, including state and local governments, federal agencies, and employment agencies, must abide by the new guidelines unless they can provide evidence that doing so will cause undue hardship. 

Female doctors have historically encountered significant barriers to family planning. Years of training cause them to delay having children, often leading to higher rates of infertility, miscarriage, and pregnancy complications than in the general population. 

Some specialties, like surgeons, are particularly at risk, with 42% reporting at least one pregnancy loss. Most surgeons work their regular schedules until delivery despite desiring workload reductions, commonly citing unsupportive workplaces as a reason for not seeking accommodations. 

Trauma surgeon Qaali Hussein, MD, became pregnant with her first child during her intern year in 2008. She told this news organization that her residency program didn’t even have a maternity policy at the time, and her male supervisor was certain that motherhood would end her surgical career. 

She shared how “women usually waited until the end of their training to get pregnant. No one had ever gotten pregnant during the program and returned from maternity leave. I was the first to do so, so there wasn’t a policy or any program support to say, ‘What can we do to help?’ ”

Dr. Hussein used her vacation and sick time, returning to work 4 weeks after delivery. She had five more children, including twins her chief year and another baby during fellowship training in 2014. 

Each subsequent pregnancy was met with the same response from program leadership, she recalled. “They’d say, ‘This is it. You may have been able to do the first and second child, but this one will be impossible.’ ”

After the PWFA regulations first became enforceable in June, the EEOC accepted public feedback. The guidelines received nearly 100,000 comments, spurred mainly by the inclusion of abortion care as a qualifying condition for which an employee could receive accommodations. About 54,000 comments called for abortion to be excluded from the final rule, and 40,000 supported keeping the clause. 

The EEOC issued the final rule on April 15. It includes abortion care. However, the updated rule “does not require any employee to have — or not to have — an abortion, does not require taxpayers to pay for any abortions, and does not compel health care providers to provide any abortions,” the unpublished version of the final rule said. It is scheduled to take effect 60 days after its publication in the Federal Register on April 19.
 

Increasing Support for Doctor-Moms

The PWFA supplements other EEOC protections, such as pregnancy discrimination under Title VII of the Civil Rights Act of 1964 and access to reasonable accommodations under the Americans with Disabilities Act. In addition, it builds upon Department of Labor regulations, like the PUMP Act for breastfeeding employees and the Family and Medical Leave Act, which provides 12 weeks of unpaid, job-protected leave for the arrival of a child or certain medical conditions.

FMLA applies only to employees who have worked full-time for at least 12 months for an employer with 50 or more employees. Meanwhile, the unpaid, job-protected leave under the PWFA has no waiting period, lowers the required number of employees to 15, and permits accommodations for up to 40 weeks. 

Employers are encouraged to honor “common and simple” requests, like using a closer parking space or pumping or nursing at work, without requiring a doctor’s note, the rule said. 

Efforts to improve family leave policies for physicians and residents have been gaining traction. In 2021, the American Board of Medical Specialties began requiring its member boards with training programs lasting 2 or more years to allow at least 6 weeks off for parental, caregiver, and medical leave. This time can be taken without exhausting vacation or sick leave or requiring an extension in training. Over half of the 24 member boards permit leave beyond 6 weeks, including the American Boards of Allergy and Immunology, Emergency Medicine, Family Medicine, Radiology, and Surgery. 

Estefania Oliveros, MD, MSc, cardiologist and assistant professor at the Lewis Katz School of Medicine at Temple University, Philadelphia, told this news organization that the Accreditation Council for Graduate Medical Education also requires that residents and fellows receive 6 weeks of paid leave. 

“We add to that vacation time, so it gives them at least 8 weeks,” she said. The school has created spaces for nursing mothers — something neither she nor Dr. Hussein had access to when breastfeeding — and encourages the attendings to be proactive in excusing pregnant fellows for appointments. 

This differs significantly from her fellowship training experience 6 years ago at another institution, where she worked without accommodations until the day before her cesarean delivery. Dr. Oliveros had to use all her vacation time for recovery, returning to the program after 4 weeks instead of the recommended 6. 

“And that’s the story you hear all the time. Not because people are ill-intended; I just don’t think the system is designed to accommodate women, so we lose a lot of talent that way,” said Dr. Oliveros, whose 2019 survey in the Journal of the American College of Cardiology called for more support and protections for pregnant doctors. 

Both doctors believe the PWFA will be beneficial but only if leadership in the field takes up the cause. 

“The cultures of these institutions determine whether women feel safe or even confident enough to have children in medical school or residency,” said Dr. Hussein. 
 

A version of this article appeared on Medscape.com.

Pregnant physicians may receive more workplace accommodations and protection against discrimination thanks to an updated rule from the US Equal Employment Opportunity Commission (EEOC). The guidelines could prevent women from losing critical career momentum. 

The Pregnant Workers Fairness Act (PWFA) aims to help workers balance professional demands with healthy pregnancies. It requires employers to provide reasonable accommodations for a “worker’s known limitations,” including physical or mental conditions associated with “pregnancy, childbirth, or related medical conditions.”

Reasonable accommodations vary but may involve time off to attend healthcare appointments or recover from childbirth, extra breaks during a shift, shorter work hours, or the ability to sit instead of stand. Private and public sector employers, including state and local governments, federal agencies, and employment agencies, must abide by the new guidelines unless they can provide evidence that doing so will cause undue hardship. 

Female doctors have historically encountered significant barriers to family planning. Years of training cause them to delay having children, often leading to higher rates of infertility, miscarriage, and pregnancy complications than in the general population. 

Some specialties, like surgeons, are particularly at risk, with 42% reporting at least one pregnancy loss. Most surgeons work their regular schedules until delivery despite desiring workload reductions, commonly citing unsupportive workplaces as a reason for not seeking accommodations. 

Trauma surgeon Qaali Hussein, MD, became pregnant with her first child during her intern year in 2008. She told this news organization that her residency program didn’t even have a maternity policy at the time, and her male supervisor was certain that motherhood would end her surgical career. 

She shared how “women usually waited until the end of their training to get pregnant. No one had ever gotten pregnant during the program and returned from maternity leave. I was the first to do so, so there wasn’t a policy or any program support to say, ‘What can we do to help?’ ”

Dr. Hussein used her vacation and sick time, returning to work 4 weeks after delivery. She had five more children, including twins her chief year and another baby during fellowship training in 2014. 

Each subsequent pregnancy was met with the same response from program leadership, she recalled. “They’d say, ‘This is it. You may have been able to do the first and second child, but this one will be impossible.’ ”

After the PWFA regulations first became enforceable in June, the EEOC accepted public feedback. The guidelines received nearly 100,000 comments, spurred mainly by the inclusion of abortion care as a qualifying condition for which an employee could receive accommodations. About 54,000 comments called for abortion to be excluded from the final rule, and 40,000 supported keeping the clause. 

The EEOC issued the final rule on April 15. It includes abortion care. However, the updated rule “does not require any employee to have — or not to have — an abortion, does not require taxpayers to pay for any abortions, and does not compel health care providers to provide any abortions,” the unpublished version of the final rule said. It is scheduled to take effect 60 days after its publication in the Federal Register on April 19.
 

Increasing Support for Doctor-Moms

The PWFA supplements other EEOC protections, such as pregnancy discrimination under Title VII of the Civil Rights Act of 1964 and access to reasonable accommodations under the Americans with Disabilities Act. In addition, it builds upon Department of Labor regulations, like the PUMP Act for breastfeeding employees and the Family and Medical Leave Act, which provides 12 weeks of unpaid, job-protected leave for the arrival of a child or certain medical conditions.

FMLA applies only to employees who have worked full-time for at least 12 months for an employer with 50 or more employees. Meanwhile, the unpaid, job-protected leave under the PWFA has no waiting period, lowers the required number of employees to 15, and permits accommodations for up to 40 weeks. 

Employers are encouraged to honor “common and simple” requests, like using a closer parking space or pumping or nursing at work, without requiring a doctor’s note, the rule said. 

Efforts to improve family leave policies for physicians and residents have been gaining traction. In 2021, the American Board of Medical Specialties began requiring its member boards with training programs lasting 2 or more years to allow at least 6 weeks off for parental, caregiver, and medical leave. This time can be taken without exhausting vacation or sick leave or requiring an extension in training. Over half of the 24 member boards permit leave beyond 6 weeks, including the American Boards of Allergy and Immunology, Emergency Medicine, Family Medicine, Radiology, and Surgery. 

Estefania Oliveros, MD, MSc, cardiologist and assistant professor at the Lewis Katz School of Medicine at Temple University, Philadelphia, told this news organization that the Accreditation Council for Graduate Medical Education also requires that residents and fellows receive 6 weeks of paid leave. 

“We add to that vacation time, so it gives them at least 8 weeks,” she said. The school has created spaces for nursing mothers — something neither she nor Dr. Hussein had access to when breastfeeding — and encourages the attendings to be proactive in excusing pregnant fellows for appointments. 

This differs significantly from her fellowship training experience 6 years ago at another institution, where she worked without accommodations until the day before her cesarean delivery. Dr. Oliveros had to use all her vacation time for recovery, returning to the program after 4 weeks instead of the recommended 6. 

“And that’s the story you hear all the time. Not because people are ill-intended; I just don’t think the system is designed to accommodate women, so we lose a lot of talent that way,” said Dr. Oliveros, whose 2019 survey in the Journal of the American College of Cardiology called for more support and protections for pregnant doctors. 

Both doctors believe the PWFA will be beneficial but only if leadership in the field takes up the cause. 

“The cultures of these institutions determine whether women feel safe or even confident enough to have children in medical school or residency,” said Dr. Hussein. 
 

A version of this article appeared on Medscape.com.

Pregnant physicians may receive more workplace accommodations and protection against discrimination thanks to an updated rule from the US Equal Employment Opportunity Commission (EEOC). The guidelines could prevent women from losing critical career momentum. 

The Pregnant Workers Fairness Act (PWFA) aims to help workers balance professional demands with healthy pregnancies. It requires employers to provide reasonable accommodations for a “worker’s known limitations,” including physical or mental conditions associated with “pregnancy, childbirth, or related medical conditions.”

Reasonable accommodations vary but may involve time off to attend healthcare appointments or recover from childbirth, extra breaks during a shift, shorter work hours, or the ability to sit instead of stand. Private and public sector employers, including state and local governments, federal agencies, and employment agencies, must abide by the new guidelines unless they can provide evidence that doing so will cause undue hardship. 

Female doctors have historically encountered significant barriers to family planning. Years of training cause them to delay having children, often leading to higher rates of infertility, miscarriage, and pregnancy complications than in the general population. 

Some specialties, like surgeons, are particularly at risk, with 42% reporting at least one pregnancy loss. Most surgeons work their regular schedules until delivery despite desiring workload reductions, commonly citing unsupportive workplaces as a reason for not seeking accommodations. 

Trauma surgeon Qaali Hussein, MD, became pregnant with her first child during her intern year in 2008. She told this news organization that her residency program didn’t even have a maternity policy at the time, and her male supervisor was certain that motherhood would end her surgical career. 

She shared how “women usually waited until the end of their training to get pregnant. No one had ever gotten pregnant during the program and returned from maternity leave. I was the first to do so, so there wasn’t a policy or any program support to say, ‘What can we do to help?’ ”

Dr. Hussein used her vacation and sick time, returning to work 4 weeks after delivery. She had five more children, including twins her chief year and another baby during fellowship training in 2014. 

Each subsequent pregnancy was met with the same response from program leadership, she recalled. “They’d say, ‘This is it. You may have been able to do the first and second child, but this one will be impossible.’ ”

After the PWFA regulations first became enforceable in June, the EEOC accepted public feedback. The guidelines received nearly 100,000 comments, spurred mainly by the inclusion of abortion care as a qualifying condition for which an employee could receive accommodations. About 54,000 comments called for abortion to be excluded from the final rule, and 40,000 supported keeping the clause. 

The EEOC issued the final rule on April 15. It includes abortion care. However, the updated rule “does not require any employee to have — or not to have — an abortion, does not require taxpayers to pay for any abortions, and does not compel health care providers to provide any abortions,” the unpublished version of the final rule said. It is scheduled to take effect 60 days after its publication in the Federal Register on April 19.
 

Increasing Support for Doctor-Moms

The PWFA supplements other EEOC protections, such as pregnancy discrimination under Title VII of the Civil Rights Act of 1964 and access to reasonable accommodations under the Americans with Disabilities Act. In addition, it builds upon Department of Labor regulations, like the PUMP Act for breastfeeding employees and the Family and Medical Leave Act, which provides 12 weeks of unpaid, job-protected leave for the arrival of a child or certain medical conditions.

FMLA applies only to employees who have worked full-time for at least 12 months for an employer with 50 or more employees. Meanwhile, the unpaid, job-protected leave under the PWFA has no waiting period, lowers the required number of employees to 15, and permits accommodations for up to 40 weeks. 

Employers are encouraged to honor “common and simple” requests, like using a closer parking space or pumping or nursing at work, without requiring a doctor’s note, the rule said. 

Efforts to improve family leave policies for physicians and residents have been gaining traction. In 2021, the American Board of Medical Specialties began requiring its member boards with training programs lasting 2 or more years to allow at least 6 weeks off for parental, caregiver, and medical leave. This time can be taken without exhausting vacation or sick leave or requiring an extension in training. Over half of the 24 member boards permit leave beyond 6 weeks, including the American Boards of Allergy and Immunology, Emergency Medicine, Family Medicine, Radiology, and Surgery. 

Estefania Oliveros, MD, MSc, cardiologist and assistant professor at the Lewis Katz School of Medicine at Temple University, Philadelphia, told this news organization that the Accreditation Council for Graduate Medical Education also requires that residents and fellows receive 6 weeks of paid leave. 

“We add to that vacation time, so it gives them at least 8 weeks,” she said. The school has created spaces for nursing mothers — something neither she nor Dr. Hussein had access to when breastfeeding — and encourages the attendings to be proactive in excusing pregnant fellows for appointments. 

This differs significantly from her fellowship training experience 6 years ago at another institution, where she worked without accommodations until the day before her cesarean delivery. Dr. Oliveros had to use all her vacation time for recovery, returning to the program after 4 weeks instead of the recommended 6. 

“And that’s the story you hear all the time. Not because people are ill-intended; I just don’t think the system is designed to accommodate women, so we lose a lot of talent that way,” said Dr. Oliveros, whose 2019 survey in the Journal of the American College of Cardiology called for more support and protections for pregnant doctors. 

Both doctors believe the PWFA will be beneficial but only if leadership in the field takes up the cause. 

“The cultures of these institutions determine whether women feel safe or even confident enough to have children in medical school or residency,” said Dr. Hussein. 
 

A version of this article appeared on Medscape.com.

Will the weight reduction success with glucagon-like peptide-1 (GLP-1) agonists translate into strong reductions in obstructive sleep apnea (OSA)? Will those potential OSA benefits obviate the need in many for continuous positive airway pressure (CPAP)? Experts are voicing high hopes while citing important health equity concerns and reluctance to de-emphasize lifestyle remedies.

“I think it’s a game changer for helping people who are overweight or obese,” Samuel T. Kuna, MD, chief of sleep medicine at the Corporal Michael J. Crescenz VA Medical Center in Philadelphia, said in an interview with CHEST Physician. “I think we’re just starting out on a very exciting new era. We finally have quite effective treatments for this population.” Dr. Kuna’s Sleep AHEAD (Action for Health in Diabetes) 2021 study (doi: 10.1164/rccm.201912-2511OC) found that participants with OSA and type 2 diabetes mellitus receiving intensive lifestyle interventions for weight loss had reduced OSA severity at 10 years, and that OSA remission at 10 years was more common with intensive lifestyle intervention than with diabetes support and education.

Potential for OSA impact

In a JAMA Network Open/Pulmonary Medicine article on a 2022 study (doi: 10.1001/jamanetworkopen.2022.8212) conducted among 89 Spanish male adults with moderate to severe OSA and body mass index of 25 or greater, participants received CPAP therapy with or without 8 weeks of weight loss and lifestyle intervention. The primary endpoint of apnea-hypopnea index at 6 months showed the intervention to yield “clinically meaningful and sustainable improvements in OSA.”

Dr. Kuna stated, “I don’t think these [weight loss] agents eliminate the importance of behavioral modification, of changing diet, of reducing highly processed foods and maintaining a healthy lifestyle.” He acknowledged, however, that behavioral endeavors have been in general disappointing with respect to patients’ ability to achieve weight loss. “These medicines really open up a new strategy to help patients do that,” he added.

Milleflore Images/Shutterstock

Significant impact on OSA and CPAP

“Obesity is a risk factor for sleep apnea,” stated Saadia A. Faiz, MD, FCCP, professor, Department of Pulmonary Medicine, University of Texas MD Anderson Cancer Center, Houston, “so with increased use of these GLP-1 agents for weight reduction, we would anticipate a significant impact on both OSA severity and need for CPAP.” Speaking in a CHEST Physician interview and referring to the Kuna et al. study, she stated, “Since cessation of the drug can lead to rebound weight gain, the emphasis on healthy eating and exercise is crucial to management.” Dr. Faiz said further, “It’s important to note that there are other weight-independent mechanisms for OSA, including upper airway anatomy, mechanisms that modulate upper airway stability, chemoreceptor sensitivity, visceral adiposity, neuroendocrine control, sleep quality, and other aspects of OSA pathophysiology yet to be discovered.”

Cost an obstacle for some

“For many insurances, criteria for coverage include obesity and prediabetes based on HbA1c. For some not meeting requirements, they will have to pay out of pocket,” Dr. Faiz said. She pointed to a Respirology (doi: 10.1111/resp.14545) commentary in which Garun S. Hamilton, MBBS, PhD, and Bradley A. Edwards, PhD, underscored the nearly 1 billion people worldwide with OSA, most of whom are overweight or obese. “GLP-1 agonists are so effective that they have become a worldwide phenomenon. The high cost of the medications combined with the high prevalence of OSA means that there is no way that universal healthcare funding schemes can afford these medications, unless strict criteria are in place to prioritize those who can gain subsidized access and/or a duration of use limit is in place,” they stated. “This will no doubt exacerbate inequities in healthcare access and outcome between those from lower versus higher socioeconomic populations, as the attributable benefit from GLP-1 agonists is likely to be dependent on a patient’s ability to afford them.”
 

Beyond health equity concerns

The evidence for clinically relevant reductions in weight and resultant lowering of other adverse risk factors supports a wide embrace of Ozempic-type drugs. Standing alongside, however, are the cautionary pleas of nutrition/lifestyle-focused health advocates. They urge that prescriptions for nonpharmacological strategies that promote better sleep, healthier food choices, and more exercise need sharper highlighting and strong incentivizing.

Dr. Faiz said, “The availability and consumption of ultra-processed foods can impact food intake and weight. Specifically, in a small study of 20 inpatient adults admitted to the NIH Clinical Center randomized to either ultra-processed or unprocessed diets for 14 days, increased caloric intake and weight gain were found in the ultra-processed cohort.” In the study Dr. Faiz cited (doi: 10.1016/j.cmet.2019.05.008), meals were matched for calories, energy density, macronutrients, sugar, sodium, and fiber. Subjects were instructed to consume as much or as little as desired. Analysis showed a 4-pound weight difference between groups within 2 weeks: The ultra-processed cohort had taken in an extra 500 calories a day and had gained weight (0.9 ± 0.3 kg [P = .009]) and body fat while the unprocessed food group lost weight (0.9 ± 0.3 kg [P = .007]) and body fat.

“Thus, the type of foods we opt for can also have significant impact,” Dr. Faiz stated.

Dr. Faiz and Dr. Kuna said they had no conflicts of interest to disclose.

Will the weight reduction success with glucagon-like peptide-1 (GLP-1) agonists translate into strong reductions in obstructive sleep apnea (OSA)? Will those potential OSA benefits obviate the need in many for continuous positive airway pressure (CPAP)? Experts are voicing high hopes while citing important health equity concerns and reluctance to de-emphasize lifestyle remedies.

“I think it’s a game changer for helping people who are overweight or obese,” Samuel T. Kuna, MD, chief of sleep medicine at the Corporal Michael J. Crescenz VA Medical Center in Philadelphia, said in an interview with CHEST Physician. “I think we’re just starting out on a very exciting new era. We finally have quite effective treatments for this population.” Dr. Kuna’s Sleep AHEAD (Action for Health in Diabetes) 2021 study (doi: 10.1164/rccm.201912-2511OC) found that participants with OSA and type 2 diabetes mellitus receiving intensive lifestyle interventions for weight loss had reduced OSA severity at 10 years, and that OSA remission at 10 years was more common with intensive lifestyle intervention than with diabetes support and education.

Potential for OSA impact

In a JAMA Network Open/Pulmonary Medicine article on a 2022 study (doi: 10.1001/jamanetworkopen.2022.8212) conducted among 89 Spanish male adults with moderate to severe OSA and body mass index of 25 or greater, participants received CPAP therapy with or without 8 weeks of weight loss and lifestyle intervention. The primary endpoint of apnea-hypopnea index at 6 months showed the intervention to yield “clinically meaningful and sustainable improvements in OSA.”

Dr. Kuna stated, “I don’t think these [weight loss] agents eliminate the importance of behavioral modification, of changing diet, of reducing highly processed foods and maintaining a healthy lifestyle.” He acknowledged, however, that behavioral endeavors have been in general disappointing with respect to patients’ ability to achieve weight loss. “These medicines really open up a new strategy to help patients do that,” he added.

Milleflore Images/Shutterstock

Significant impact on OSA and CPAP

“Obesity is a risk factor for sleep apnea,” stated Saadia A. Faiz, MD, FCCP, professor, Department of Pulmonary Medicine, University of Texas MD Anderson Cancer Center, Houston, “so with increased use of these GLP-1 agents for weight reduction, we would anticipate a significant impact on both OSA severity and need for CPAP.” Speaking in a CHEST Physician interview and referring to the Kuna et al. study, she stated, “Since cessation of the drug can lead to rebound weight gain, the emphasis on healthy eating and exercise is crucial to management.” Dr. Faiz said further, “It’s important to note that there are other weight-independent mechanisms for OSA, including upper airway anatomy, mechanisms that modulate upper airway stability, chemoreceptor sensitivity, visceral adiposity, neuroendocrine control, sleep quality, and other aspects of OSA pathophysiology yet to be discovered.”

Cost an obstacle for some

“For many insurances, criteria for coverage include obesity and prediabetes based on HbA1c. For some not meeting requirements, they will have to pay out of pocket,” Dr. Faiz said. She pointed to a Respirology (doi: 10.1111/resp.14545) commentary in which Garun S. Hamilton, MBBS, PhD, and Bradley A. Edwards, PhD, underscored the nearly 1 billion people worldwide with OSA, most of whom are overweight or obese. “GLP-1 agonists are so effective that they have become a worldwide phenomenon. The high cost of the medications combined with the high prevalence of OSA means that there is no way that universal healthcare funding schemes can afford these medications, unless strict criteria are in place to prioritize those who can gain subsidized access and/or a duration of use limit is in place,” they stated. “This will no doubt exacerbate inequities in healthcare access and outcome between those from lower versus higher socioeconomic populations, as the attributable benefit from GLP-1 agonists is likely to be dependent on a patient’s ability to afford them.”
 

Beyond health equity concerns

The evidence for clinically relevant reductions in weight and resultant lowering of other adverse risk factors supports a wide embrace of Ozempic-type drugs. Standing alongside, however, are the cautionary pleas of nutrition/lifestyle-focused health advocates. They urge that prescriptions for nonpharmacological strategies that promote better sleep, healthier food choices, and more exercise need sharper highlighting and strong incentivizing.

Dr. Faiz said, “The availability and consumption of ultra-processed foods can impact food intake and weight. Specifically, in a small study of 20 inpatient adults admitted to the NIH Clinical Center randomized to either ultra-processed or unprocessed diets for 14 days, increased caloric intake and weight gain were found in the ultra-processed cohort.” In the study Dr. Faiz cited (doi: 10.1016/j.cmet.2019.05.008), meals were matched for calories, energy density, macronutrients, sugar, sodium, and fiber. Subjects were instructed to consume as much or as little as desired. Analysis showed a 4-pound weight difference between groups within 2 weeks: The ultra-processed cohort had taken in an extra 500 calories a day and had gained weight (0.9 ± 0.3 kg [P = .009]) and body fat while the unprocessed food group lost weight (0.9 ± 0.3 kg [P = .007]) and body fat.

“Thus, the type of foods we opt for can also have significant impact,” Dr. Faiz stated.

Dr. Faiz and Dr. Kuna said they had no conflicts of interest to disclose.

Will the weight reduction success with glucagon-like peptide-1 (GLP-1) agonists translate into strong reductions in obstructive sleep apnea (OSA)? Will those potential OSA benefits obviate the need in many for continuous positive airway pressure (CPAP)? Experts are voicing high hopes while citing important health equity concerns and reluctance to de-emphasize lifestyle remedies.

“I think it’s a game changer for helping people who are overweight or obese,” Samuel T. Kuna, MD, chief of sleep medicine at the Corporal Michael J. Crescenz VA Medical Center in Philadelphia, said in an interview with CHEST Physician. “I think we’re just starting out on a very exciting new era. We finally have quite effective treatments for this population.” Dr. Kuna’s Sleep AHEAD (Action for Health in Diabetes) 2021 study (doi: 10.1164/rccm.201912-2511OC) found that participants with OSA and type 2 diabetes mellitus receiving intensive lifestyle interventions for weight loss had reduced OSA severity at 10 years, and that OSA remission at 10 years was more common with intensive lifestyle intervention than with diabetes support and education.

Potential for OSA impact

In a JAMA Network Open/Pulmonary Medicine article on a 2022 study (doi: 10.1001/jamanetworkopen.2022.8212) conducted among 89 Spanish male adults with moderate to severe OSA and body mass index of 25 or greater, participants received CPAP therapy with or without 8 weeks of weight loss and lifestyle intervention. The primary endpoint of apnea-hypopnea index at 6 months showed the intervention to yield “clinically meaningful and sustainable improvements in OSA.”

Dr. Kuna stated, “I don’t think these [weight loss] agents eliminate the importance of behavioral modification, of changing diet, of reducing highly processed foods and maintaining a healthy lifestyle.” He acknowledged, however, that behavioral endeavors have been in general disappointing with respect to patients’ ability to achieve weight loss. “These medicines really open up a new strategy to help patients do that,” he added.

Milleflore Images/Shutterstock

Significant impact on OSA and CPAP

“Obesity is a risk factor for sleep apnea,” stated Saadia A. Faiz, MD, FCCP, professor, Department of Pulmonary Medicine, University of Texas MD Anderson Cancer Center, Houston, “so with increased use of these GLP-1 agents for weight reduction, we would anticipate a significant impact on both OSA severity and need for CPAP.” Speaking in a CHEST Physician interview and referring to the Kuna et al. study, she stated, “Since cessation of the drug can lead to rebound weight gain, the emphasis on healthy eating and exercise is crucial to management.” Dr. Faiz said further, “It’s important to note that there are other weight-independent mechanisms for OSA, including upper airway anatomy, mechanisms that modulate upper airway stability, chemoreceptor sensitivity, visceral adiposity, neuroendocrine control, sleep quality, and other aspects of OSA pathophysiology yet to be discovered.”

Cost an obstacle for some

“For many insurances, criteria for coverage include obesity and prediabetes based on HbA1c. For some not meeting requirements, they will have to pay out of pocket,” Dr. Faiz said. She pointed to a Respirology (doi: 10.1111/resp.14545) commentary in which Garun S. Hamilton, MBBS, PhD, and Bradley A. Edwards, PhD, underscored the nearly 1 billion people worldwide with OSA, most of whom are overweight or obese. “GLP-1 agonists are so effective that they have become a worldwide phenomenon. The high cost of the medications combined with the high prevalence of OSA means that there is no way that universal healthcare funding schemes can afford these medications, unless strict criteria are in place to prioritize those who can gain subsidized access and/or a duration of use limit is in place,” they stated. “This will no doubt exacerbate inequities in healthcare access and outcome between those from lower versus higher socioeconomic populations, as the attributable benefit from GLP-1 agonists is likely to be dependent on a patient’s ability to afford them.”
 

Beyond health equity concerns

The evidence for clinically relevant reductions in weight and resultant lowering of other adverse risk factors supports a wide embrace of Ozempic-type drugs. Standing alongside, however, are the cautionary pleas of nutrition/lifestyle-focused health advocates. They urge that prescriptions for nonpharmacological strategies that promote better sleep, healthier food choices, and more exercise need sharper highlighting and strong incentivizing.

Dr. Faiz said, “The availability and consumption of ultra-processed foods can impact food intake and weight. Specifically, in a small study of 20 inpatient adults admitted to the NIH Clinical Center randomized to either ultra-processed or unprocessed diets for 14 days, increased caloric intake and weight gain were found in the ultra-processed cohort.” In the study Dr. Faiz cited (doi: 10.1016/j.cmet.2019.05.008), meals were matched for calories, energy density, macronutrients, sugar, sodium, and fiber. Subjects were instructed to consume as much or as little as desired. Analysis showed a 4-pound weight difference between groups within 2 weeks: The ultra-processed cohort had taken in an extra 500 calories a day and had gained weight (0.9 ± 0.3 kg [P = .009]) and body fat while the unprocessed food group lost weight (0.9 ± 0.3 kg [P = .007]) and body fat.

“Thus, the type of foods we opt for can also have significant impact,” Dr. Faiz stated.

Dr. Faiz and Dr. Kuna said they had no conflicts of interest to disclose.

More women today are surviving breast cancer if it’s caught early, largely because of better screening and more effective and targeted treatments.

However, not everyone has benefited equitably from this progress. Critical gaps in breast cancer outcomes and survival remain for women in racial and ethnic minority groups.

Black women for instance, have a 41% higher death rate from breast cancer compared with White patients. They also have a greater incidence of aggressive disease like triple-negative breast cancer. Native American and Hispanic women, meanwhile, are more likely to be diagnosed with breast cancer at an earlier age than White women and experience more aggressive breast cancers.

In 2023, Farhad Islami, MD, PhD, and his team published an updated analysis of racial/ethnic and socioeconomic disparities in cancer trends based on data from 2014 to 2020. The analysis found that Black women in particular, were the least likely to have an early-stage diagnosis of breast cancer. Localized‐stage breast cancer was diagnosed in 57% of Black women versus 68% of White women.

American Cancer Society

“Despite substantial progress in cancer prevention, early detection, and treatments, the burden of cancer remains greater among populations that have been historically marginalized, including people of color, people with lower socioeconomic status, and people living in nonmetropolitan areas,” said Dr. Islami, who is senior scientific director of cancer disparity research in the Surveillance & Health Equity Science Department at the American Cancer Society.

The reasons behind outcomes disparities in breast cancer are complex, making solutions challenging, say experts researching racial differences in cancer outcomes.

While social determinants of health (SDH) seem to be drivers of higher breast cancer mortality in Black women, biological differences between Black and White women are also linked to poorer outcomes in Black women with breast cancer, new studies suggest. Among the findings of this research is that breast cancer tests may be contributing to the disparities and misguiding care for some patients of color.
 

SDH and Screening Rates Differences By Race

A range of factors contribute to racial and ethnic disparities in breast cancer outcomes, said Pamela Ganschow, MD, an associate professor in the Department of Internal Medicine at the University of Illinois Cancer Center in Chicago and part of the university’s Cancer Prevention and Control research program. These include socioeconomic status, access to timely and high-quality care across the cancer control continuum, cultural beliefs, differences in genetic makeup and tumor biology, as well as system biases, such as implicit biases and systemic racism, Dr. Ganschow said.

Dr. Islami adds that gaps in access to cancer prevention, early detection, and treatment are largely rooted in fundamental inequities in social determinants of health (SDH), such as whether a patient has safe housing, transportation, education, job opportunities, income, access to nutritious foods, and language and literacy skills, among others.

Dr. Islami’s analysis, for example, shows that people of color are generally more likely to have lower educational attainment and to experience poverty, food insecurity, and housing insecurity compared with White people. Among people aged 18-64 years, the age-adjusted proportion of individuals with no health insurance in 2021 was also higher among Black (13.7%), American Indian/Alaskan Native (18.7%), and Hispanic (28.7%) patients than among White (7.8%) or Asian (5.9%) people, according to the report.

Competing needs can also get in the way of prioritizing cancer screenings, especially for patients in lower socio-economic populations, Dr. Ganschow said.

University of Illinois Cancer Center

Biological Differences, Bad Testing Recommendations May Contribute to Poor Outcomes

Differences in biology may be one overlooked internal driver of lower breast cancer survival in Black women.

Researchers at Sanford Burnham Prebys in La Jolla, California, recently analyzed the breast cells of White and Black women, finding significant molecular differences that may be contributing to higher breast cancer mortality rates in Black women.

Investigators analyzed both healthy tissue and tumor tissue from 185 Black women and compared the samples to that of White women. They discovered differences among Black and White women in the way their DNA repair genes are expressed, both in healthy breast tissue and in tumors positive for estrogen receptor breast cancer. Molecular differences were also present in the cellular signals that control how fast cells, including cancer cells, grow.

DNA repair is part of normal cellular function and helps cells recover from damage that can occur during DNA replication or in response to external factors, such as stress.

“One of the first lines of defense, to prevent the cell from becoming a tumor are DNA damage repair pathways,” said Svasti Haricharan, PhD, a coauthor of the study and an assistant professor at Sanford Burnham Prebys. “We know there are many different DNA damage repair pathways that respond to different types of DNA damage. What we didn’t know was that, even in our normal cells, based on your race and ethnicity, you have different levels of DNA repair proteins.”

Sanford Burnham Prebys

University of Illinois Cancer Center

How Neighborhood Impacts Breast Cancer, Death Rates

Living in a disadvantaged neighborhood also lowers breast cancer survival, according to new research. A disadvantaged neighborhood is generally defined as a location associated with higher concentrations of poverty, higher rates of unemployment, and less access to health care, quality housing, food, and community resources, according to the Centers for Disease Control and Prevention.

Authors of a study published in JAMA Network Open on April 18 identified 350,824 patients with breast cancer. Of these, 41,519 (11.8%) were Hispanic, 39,631 (11.3%) were non-Hispanic Black, and 234,698 (66.9%) were non-Hispanic White. Investigators divided the patients into five groups representing the lowest to highest neighborhood socioeconomic indices using the Yost Index. (The Yost Index is used by the National Cancer Institute for cancer surveillance and is based on variables such as household income, home value, median rent, percentage below 150% of the poverty line, education, and unemployment.)

Of the Black and Hispanic patients in the study, the highest proportions of both demographics lived in the most disadvantaged neighborhoods. (16,141 Black patients [30.9%]) and 10,168 Hispanic patients [19.5%]). Although 45% of White patients also fell into that same category, the highest proportion of White patients in the study lived in the most advantaged neighborhoods (66,529 patients [76.2%]).

Findings showed patients in the most disadvantaged neighborhoods had the highest proportion of triple-negative breast cancer. Patients in this group also had the lowest proportion of patients who completed surgery and radiation, and the highest proportion of patients who received chemotherapy, compared with all other neighborhood groups. The most advantaged neighborhoods group had higher proportions of localized-stage cancer, a higher proportion of patients who underwent surgery and radiation, and the lowest proportion of patients receiving chemotherapy treatment.

Patients in the most disadvantaged neighborhoods also had the highest risk of mortality (hazard ratio [HR,] 1.53; 95% CI, 1.48-1.59; P less than .001) compared with patients living in the most advantaged neighborhoods. Non-Hispanic Black patients in particular, had the highest risk of mortality, compared with non-Hispanic White patients (HR, 1.16; 95% CI, 1.13-1.20; P less than .001).

Authors wrote that the findings suggest neighborhood disadvantage is independently associated with shorter survival in patients with breast cancer, even after controlling for individual-level factors, tumor characteristics, and treatment.

“To address these residual disparities associated with neighborhood disadvantage, research must focus on which components of the built environment influence outcomes,” the authors said.

Another recent study also found correlations among where breast cancer patients lived and how they fared with the disease.

Jasmine M. Miller-Kleinhenz, PhD, an assistant professor at University of Mississippi Medical Center in Jackson, studied how historical redlining impacts breast cancer development and outcomes in her research published in JAMA Network Open, earlier this year. Redlining refers to the practice of denying people access to credit because of where they live. Historically, mortgage lenders widely redlined neighborhoods with predominantly Black residents. The 1968 Fair Housing Act outlawed racially motivated redlining, but consequences from historical redlining still exist.

University of Mississippi Medical Center

Hope for Improved Outcomes, Higher Survival Rates

Investigators hope the findings of all of this new research lead to better, more targeted treatments and, in turn, improved outcomes.

Dr. Haricharan is optimistic about the improvement of breast cancer outcomes as more is learned about the biology of Black patients and other non-White patients.

There is a growing effort to include more data from minoritized populations in breast cancer research studies, Dr. Haricharan said, and she foresees associated changes to clinical protocols in the future. Her own team is working on creating larger data sets that are more representative of non-White patients to further analyze the differences found in their prior study.

“I think there’s this understanding that, until we have data sets that are more representative, we really are catering to [only one] population in terms of our diagnostic and therapeutic technological advances,” she said.

The American Cancer Society meanwhile, is launching a new initiative in May that aims to collect more health data from Black women to ultimately develop more effective cancer interventions. VOICES of Black Women will focus on collecting and studying health data from Black women through online surveys. The society’s goal is to enroll at least 100,000 Black women in the United States between ages 25 and 55.

Dr. Miller-Kleinhenz called the initiative “an important step to starting to research and answer some of these lingering questions about why there continue to be breast cancer disparities.”

More women today are surviving breast cancer if it’s caught early, largely because of better screening and more effective and targeted treatments.

However, not everyone has benefited equitably from this progress. Critical gaps in breast cancer outcomes and survival remain for women in racial and ethnic minority groups.

Black women for instance, have a 41% higher death rate from breast cancer compared with White patients. They also have a greater incidence of aggressive disease like triple-negative breast cancer. Native American and Hispanic women, meanwhile, are more likely to be diagnosed with breast cancer at an earlier age than White women and experience more aggressive breast cancers.

In 2023, Farhad Islami, MD, PhD, and his team published an updated analysis of racial/ethnic and socioeconomic disparities in cancer trends based on data from 2014 to 2020. The analysis found that Black women in particular, were the least likely to have an early-stage diagnosis of breast cancer. Localized‐stage breast cancer was diagnosed in 57% of Black women versus 68% of White women.

American Cancer Society

“Despite substantial progress in cancer prevention, early detection, and treatments, the burden of cancer remains greater among populations that have been historically marginalized, including people of color, people with lower socioeconomic status, and people living in nonmetropolitan areas,” said Dr. Islami, who is senior scientific director of cancer disparity research in the Surveillance & Health Equity Science Department at the American Cancer Society.

The reasons behind outcomes disparities in breast cancer are complex, making solutions challenging, say experts researching racial differences in cancer outcomes.

While social determinants of health (SDH) seem to be drivers of higher breast cancer mortality in Black women, biological differences between Black and White women are also linked to poorer outcomes in Black women with breast cancer, new studies suggest. Among the findings of this research is that breast cancer tests may be contributing to the disparities and misguiding care for some patients of color.
 

SDH and Screening Rates Differences By Race

A range of factors contribute to racial and ethnic disparities in breast cancer outcomes, said Pamela Ganschow, MD, an associate professor in the Department of Internal Medicine at the University of Illinois Cancer Center in Chicago and part of the university’s Cancer Prevention and Control research program. These include socioeconomic status, access to timely and high-quality care across the cancer control continuum, cultural beliefs, differences in genetic makeup and tumor biology, as well as system biases, such as implicit biases and systemic racism, Dr. Ganschow said.

Dr. Islami adds that gaps in access to cancer prevention, early detection, and treatment are largely rooted in fundamental inequities in social determinants of health (SDH), such as whether a patient has safe housing, transportation, education, job opportunities, income, access to nutritious foods, and language and literacy skills, among others.

Dr. Islami’s analysis, for example, shows that people of color are generally more likely to have lower educational attainment and to experience poverty, food insecurity, and housing insecurity compared with White people. Among people aged 18-64 years, the age-adjusted proportion of individuals with no health insurance in 2021 was also higher among Black (13.7%), American Indian/Alaskan Native (18.7%), and Hispanic (28.7%) patients than among White (7.8%) or Asian (5.9%) people, according to the report.

Competing needs can also get in the way of prioritizing cancer screenings, especially for patients in lower socio-economic populations, Dr. Ganschow said.

University of Illinois Cancer Center

Biological Differences, Bad Testing Recommendations May Contribute to Poor Outcomes

Differences in biology may be one overlooked internal driver of lower breast cancer survival in Black women.

Researchers at Sanford Burnham Prebys in La Jolla, California, recently analyzed the breast cells of White and Black women, finding significant molecular differences that may be contributing to higher breast cancer mortality rates in Black women.

Investigators analyzed both healthy tissue and tumor tissue from 185 Black women and compared the samples to that of White women. They discovered differences among Black and White women in the way their DNA repair genes are expressed, both in healthy breast tissue and in tumors positive for estrogen receptor breast cancer. Molecular differences were also present in the cellular signals that control how fast cells, including cancer cells, grow.

DNA repair is part of normal cellular function and helps cells recover from damage that can occur during DNA replication or in response to external factors, such as stress.

“One of the first lines of defense, to prevent the cell from becoming a tumor are DNA damage repair pathways,” said Svasti Haricharan, PhD, a coauthor of the study and an assistant professor at Sanford Burnham Prebys. “We know there are many different DNA damage repair pathways that respond to different types of DNA damage. What we didn’t know was that, even in our normal cells, based on your race and ethnicity, you have different levels of DNA repair proteins.”

Sanford Burnham Prebys

University of Illinois Cancer Center

How Neighborhood Impacts Breast Cancer, Death Rates

Living in a disadvantaged neighborhood also lowers breast cancer survival, according to new research. A disadvantaged neighborhood is generally defined as a location associated with higher concentrations of poverty, higher rates of unemployment, and less access to health care, quality housing, food, and community resources, according to the Centers for Disease Control and Prevention.

Authors of a study published in JAMA Network Open on April 18 identified 350,824 patients with breast cancer. Of these, 41,519 (11.8%) were Hispanic, 39,631 (11.3%) were non-Hispanic Black, and 234,698 (66.9%) were non-Hispanic White. Investigators divided the patients into five groups representing the lowest to highest neighborhood socioeconomic indices using the Yost Index. (The Yost Index is used by the National Cancer Institute for cancer surveillance and is based on variables such as household income, home value, median rent, percentage below 150% of the poverty line, education, and unemployment.)

Of the Black and Hispanic patients in the study, the highest proportions of both demographics lived in the most disadvantaged neighborhoods. (16,141 Black patients [30.9%]) and 10,168 Hispanic patients [19.5%]). Although 45% of White patients also fell into that same category, the highest proportion of White patients in the study lived in the most advantaged neighborhoods (66,529 patients [76.2%]).

Findings showed patients in the most disadvantaged neighborhoods had the highest proportion of triple-negative breast cancer. Patients in this group also had the lowest proportion of patients who completed surgery and radiation, and the highest proportion of patients who received chemotherapy, compared with all other neighborhood groups. The most advantaged neighborhoods group had higher proportions of localized-stage cancer, a higher proportion of patients who underwent surgery and radiation, and the lowest proportion of patients receiving chemotherapy treatment.

Patients in the most disadvantaged neighborhoods also had the highest risk of mortality (hazard ratio [HR,] 1.53; 95% CI, 1.48-1.59; P less than .001) compared with patients living in the most advantaged neighborhoods. Non-Hispanic Black patients in particular, had the highest risk of mortality, compared with non-Hispanic White patients (HR, 1.16; 95% CI, 1.13-1.20; P less than .001).

Authors wrote that the findings suggest neighborhood disadvantage is independently associated with shorter survival in patients with breast cancer, even after controlling for individual-level factors, tumor characteristics, and treatment.

“To address these residual disparities associated with neighborhood disadvantage, research must focus on which components of the built environment influence outcomes,” the authors said.

Another recent study also found correlations among where breast cancer patients lived and how they fared with the disease.

Jasmine M. Miller-Kleinhenz, PhD, an assistant professor at University of Mississippi Medical Center in Jackson, studied how historical redlining impacts breast cancer development and outcomes in her research published in JAMA Network Open, earlier this year. Redlining refers to the practice of denying people access to credit because of where they live. Historically, mortgage lenders widely redlined neighborhoods with predominantly Black residents. The 1968 Fair Housing Act outlawed racially motivated redlining, but consequences from historical redlining still exist.

University of Mississippi Medical Center

Hope for Improved Outcomes, Higher Survival Rates

Investigators hope the findings of all of this new research lead to better, more targeted treatments and, in turn, improved outcomes.

Dr. Haricharan is optimistic about the improvement of breast cancer outcomes as more is learned about the biology of Black patients and other non-White patients.

There is a growing effort to include more data from minoritized populations in breast cancer research studies, Dr. Haricharan said, and she foresees associated changes to clinical protocols in the future. Her own team is working on creating larger data sets that are more representative of non-White patients to further analyze the differences found in their prior study.

“I think there’s this understanding that, until we have data sets that are more representative, we really are catering to [only one] population in terms of our diagnostic and therapeutic technological advances,” she said.

The American Cancer Society meanwhile, is launching a new initiative in May that aims to collect more health data from Black women to ultimately develop more effective cancer interventions. VOICES of Black Women will focus on collecting and studying health data from Black women through online surveys. The society’s goal is to enroll at least 100,000 Black women in the United States between ages 25 and 55.

Dr. Miller-Kleinhenz called the initiative “an important step to starting to research and answer some of these lingering questions about why there continue to be breast cancer disparities.”

More women today are surviving breast cancer if it’s caught early, largely because of better screening and more effective and targeted treatments.

However, not everyone has benefited equitably from this progress. Critical gaps in breast cancer outcomes and survival remain for women in racial and ethnic minority groups.

Black women for instance, have a 41% higher death rate from breast cancer compared with White patients. They also have a greater incidence of aggressive disease like triple-negative breast cancer. Native American and Hispanic women, meanwhile, are more likely to be diagnosed with breast cancer at an earlier age than White women and experience more aggressive breast cancers.

In 2023, Farhad Islami, MD, PhD, and his team published an updated analysis of racial/ethnic and socioeconomic disparities in cancer trends based on data from 2014 to 2020. The analysis found that Black women in particular, were the least likely to have an early-stage diagnosis of breast cancer. Localized‐stage breast cancer was diagnosed in 57% of Black women versus 68% of White women.

American Cancer Society

“Despite substantial progress in cancer prevention, early detection, and treatments, the burden of cancer remains greater among populations that have been historically marginalized, including people of color, people with lower socioeconomic status, and people living in nonmetropolitan areas,” said Dr. Islami, who is senior scientific director of cancer disparity research in the Surveillance & Health Equity Science Department at the American Cancer Society.

The reasons behind outcomes disparities in breast cancer are complex, making solutions challenging, say experts researching racial differences in cancer outcomes.

While social determinants of health (SDH) seem to be drivers of higher breast cancer mortality in Black women, biological differences between Black and White women are also linked to poorer outcomes in Black women with breast cancer, new studies suggest. Among the findings of this research is that breast cancer tests may be contributing to the disparities and misguiding care for some patients of color.
 

SDH and Screening Rates Differences By Race

A range of factors contribute to racial and ethnic disparities in breast cancer outcomes, said Pamela Ganschow, MD, an associate professor in the Department of Internal Medicine at the University of Illinois Cancer Center in Chicago and part of the university’s Cancer Prevention and Control research program. These include socioeconomic status, access to timely and high-quality care across the cancer control continuum, cultural beliefs, differences in genetic makeup and tumor biology, as well as system biases, such as implicit biases and systemic racism, Dr. Ganschow said.

Dr. Islami adds that gaps in access to cancer prevention, early detection, and treatment are largely rooted in fundamental inequities in social determinants of health (SDH), such as whether a patient has safe housing, transportation, education, job opportunities, income, access to nutritious foods, and language and literacy skills, among others.

Dr. Islami’s analysis, for example, shows that people of color are generally more likely to have lower educational attainment and to experience poverty, food insecurity, and housing insecurity compared with White people. Among people aged 18-64 years, the age-adjusted proportion of individuals with no health insurance in 2021 was also higher among Black (13.7%), American Indian/Alaskan Native (18.7%), and Hispanic (28.7%) patients than among White (7.8%) or Asian (5.9%) people, according to the report.

Competing needs can also get in the way of prioritizing cancer screenings, especially for patients in lower socio-economic populations, Dr. Ganschow said.

University of Illinois Cancer Center

Biological Differences, Bad Testing Recommendations May Contribute to Poor Outcomes

Differences in biology may be one overlooked internal driver of lower breast cancer survival in Black women.

Researchers at Sanford Burnham Prebys in La Jolla, California, recently analyzed the breast cells of White and Black women, finding significant molecular differences that may be contributing to higher breast cancer mortality rates in Black women.

Investigators analyzed both healthy tissue and tumor tissue from 185 Black women and compared the samples to that of White women. They discovered differences among Black and White women in the way their DNA repair genes are expressed, both in healthy breast tissue and in tumors positive for estrogen receptor breast cancer. Molecular differences were also present in the cellular signals that control how fast cells, including cancer cells, grow.

DNA repair is part of normal cellular function and helps cells recover from damage that can occur during DNA replication or in response to external factors, such as stress.

“One of the first lines of defense, to prevent the cell from becoming a tumor are DNA damage repair pathways,” said Svasti Haricharan, PhD, a coauthor of the study and an assistant professor at Sanford Burnham Prebys. “We know there are many different DNA damage repair pathways that respond to different types of DNA damage. What we didn’t know was that, even in our normal cells, based on your race and ethnicity, you have different levels of DNA repair proteins.”

Sanford Burnham Prebys

University of Illinois Cancer Center

How Neighborhood Impacts Breast Cancer, Death Rates

Living in a disadvantaged neighborhood also lowers breast cancer survival, according to new research. A disadvantaged neighborhood is generally defined as a location associated with higher concentrations of poverty, higher rates of unemployment, and less access to health care, quality housing, food, and community resources, according to the Centers for Disease Control and Prevention.

Authors of a study published in JAMA Network Open on April 18 identified 350,824 patients with breast cancer. Of these, 41,519 (11.8%) were Hispanic, 39,631 (11.3%) were non-Hispanic Black, and 234,698 (66.9%) were non-Hispanic White. Investigators divided the patients into five groups representing the lowest to highest neighborhood socioeconomic indices using the Yost Index. (The Yost Index is used by the National Cancer Institute for cancer surveillance and is based on variables such as household income, home value, median rent, percentage below 150% of the poverty line, education, and unemployment.)

Of the Black and Hispanic patients in the study, the highest proportions of both demographics lived in the most disadvantaged neighborhoods. (16,141 Black patients [30.9%]) and 10,168 Hispanic patients [19.5%]). Although 45% of White patients also fell into that same category, the highest proportion of White patients in the study lived in the most advantaged neighborhoods (66,529 patients [76.2%]).

Findings showed patients in the most disadvantaged neighborhoods had the highest proportion of triple-negative breast cancer. Patients in this group also had the lowest proportion of patients who completed surgery and radiation, and the highest proportion of patients who received chemotherapy, compared with all other neighborhood groups. The most advantaged neighborhoods group had higher proportions of localized-stage cancer, a higher proportion of patients who underwent surgery and radiation, and the lowest proportion of patients receiving chemotherapy treatment.

Patients in the most disadvantaged neighborhoods also had the highest risk of mortality (hazard ratio [HR,] 1.53; 95% CI, 1.48-1.59; P less than .001) compared with patients living in the most advantaged neighborhoods. Non-Hispanic Black patients in particular, had the highest risk of mortality, compared with non-Hispanic White patients (HR, 1.16; 95% CI, 1.13-1.20; P less than .001).

Authors wrote that the findings suggest neighborhood disadvantage is independently associated with shorter survival in patients with breast cancer, even after controlling for individual-level factors, tumor characteristics, and treatment.

“To address these residual disparities associated with neighborhood disadvantage, research must focus on which components of the built environment influence outcomes,” the authors said.

Another recent study also found correlations among where breast cancer patients lived and how they fared with the disease.

Jasmine M. Miller-Kleinhenz, PhD, an assistant professor at University of Mississippi Medical Center in Jackson, studied how historical redlining impacts breast cancer development and outcomes in her research published in JAMA Network Open, earlier this year. Redlining refers to the practice of denying people access to credit because of where they live. Historically, mortgage lenders widely redlined neighborhoods with predominantly Black residents. The 1968 Fair Housing Act outlawed racially motivated redlining, but consequences from historical redlining still exist.

University of Mississippi Medical Center

Hope for Improved Outcomes, Higher Survival Rates

Investigators hope the findings of all of this new research lead to better, more targeted treatments and, in turn, improved outcomes.

Dr. Haricharan is optimistic about the improvement of breast cancer outcomes as more is learned about the biology of Black patients and other non-White patients.

There is a growing effort to include more data from minoritized populations in breast cancer research studies, Dr. Haricharan said, and she foresees associated changes to clinical protocols in the future. Her own team is working on creating larger data sets that are more representative of non-White patients to further analyze the differences found in their prior study.

“I think there’s this understanding that, until we have data sets that are more representative, we really are catering to [only one] population in terms of our diagnostic and therapeutic technological advances,” she said.

The American Cancer Society meanwhile, is launching a new initiative in May that aims to collect more health data from Black women to ultimately develop more effective cancer interventions. VOICES of Black Women will focus on collecting and studying health data from Black women through online surveys. The society’s goal is to enroll at least 100,000 Black women in the United States between ages 25 and 55.

Dr. Miller-Kleinhenz called the initiative “an important step to starting to research and answer some of these lingering questions about why there continue to be breast cancer disparities.”