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Dr. Rogers’ Neighborhood: Guinea Pigs and Groundbreaking Cancer Care
Sometimes, however, Dr. Rogers’ guinea pigs pay visits to her workplace. Every Halloween, she dresses them up and shows off their photos to just about everyone. Patients, coworkers, and even random people in the elevator get glimpses of the furry pair, who pose as dinosaurs, bats, aquarium shrimp, sharks, spiders, and bumblebees.
“Being in the hospital is not funny, but guinea pigs dressed up for Halloween is incredibly funny,” Dr. Rogers said. “They make a lot of people smile.”
For physician-scientist Dr. Rogers, a native of suburban Chicago, quality of life for patients is a priority, even when she’s not trying to entertain them and lift their spirits.
The field of hematology “is trying to figure out not only what’s biologically effective for disease, but also what might be best for people living with the condition,” she said. “This is especially true in terms of patient preference for a treatment you complete vs an ongoing or continuous treatment. I really like this idea of having more attention paid to what matters to patients, which the field of medicine sometimes forgets.”
In an interview, Dr. Rogers spoke about the appeal of storytelling in medicine, advances in treatment for CLL and hairy cell leukemia, and the challenges of college football loyalty.
How did you get drawn to medicine?
Ever since I was a kid, I thought, “Oh, I really want to be a doctor. That sounds fun.” At its core, medicine blends things I really like: science, helping people with a problem, and storytelling.
The practice of medicine is a lot about stories — talking to people, figuring out what they’re telling you about what’s going on, then explaining what you know in a way that makes sense to them.
What changes have you seen in leukemia care during your career?
The biggest change is the move from chemotherapies to targeted agents. When I first did a fellowship here at Ohio State, we had studies of ibrutinib, the first-in-class covalent Bruton tyrosine kinase (BTK) inhibitor. We’d see patients who’d been on chemotherapy for the past 10 or 15 years, and then they got in a clinical trial. Ibrutinib worked better than any of the chemotherapy, and they felt better and had fewer side effects.
Now, chemoimmunotherapy is not recommended for CLL, and you can see the impact of targeted agents on the lives of patients. Instead of telling people they need to put aside work and personal plans to take intensive chemotherapy for 6 months, you say: “You’ve got to come to some more appointments to make sure the treatment is going well, and you don’t have too many side effects. But you can expect to continue to work full-time and go to your niece’s wedding out of state or whatever else you want to do.”
What are you most excited about working on?
I’m the principal investigator of a study combining obinutuzumab, ibrutinib, and venetoclax for a fixed duration, a defined treatment course of a little over a year. I just reported the median progression-free survival for phase 2 at the European Hematology Association meeting this spring. It was over 7 years for both patients who had prior treatment and those who hadn’t.
The idea that people could take a year of treatment and get a huge benefit after completing it is quite important. The regimen has gone into phase 3 testing, and we’re now trying to understand the impact in terms of which patients got longer responses or which didn’t.
What are some challenges that remain in CLL?
There are still patients whose CLL becomes resistant to our two most commonly used classes of agents: BTK inhibitors and the BLC2 inhibitor, venetoclax. There are some more BCL2 inhibitors in development, but venetoclax is the only one currently approved.
I am also principal investigator on another study that added venetoclax to ibrutinib when resistance mutations developed that would predict ultimate resistance to ibrutinib. The median progression-free survival in that study was 40.7 months, whereas the expectation with venetoclax alone is 24 months. So, it really improved the amount of time people were in remission. This study is ongoing.
We’ve just started a phase 2 study to have patients take pirtobrutinib, a noncovalent BTK inhibitor, in combination with venetoclax in cases where CLL has become resistant to a covalent BTK inhibitor. Patients will take this combination for about a year and a half.
It’s been really exciting to see the impact of some of these combinations both as first-line CLL treatment and in CLL that’s become resistant. But trying to understand what predicts response is a harder thing. I wish I knew the answers for what causes this synergy between those two classes of drugs.
You also specialize in hairy cell leukemia. Could you talk about what it is?
CLL is the most prevalent adult leukemia in the Western world, whereas hairy cell leukemia is very rare. It’s a slow-growing B-cell cancer that got its name because under the microscope, the cells have hairy projections on them.
It had a survival of only about 2-4 years before the development of purine analogs. After a course of pentostatin or cladribine (2-chlordeoxyadenosine), some people never need treatment again in our natural lifespan.
But some patients don’t benefit from purine analogs, either because they have a devastating infection that makes them unsuitable or for another reason. Or they end up needing treatment every 2-3 years, which isn’t something you want to do for 30 years of someone’s lifespan.
What are some challenges in hairy cell leukemia?
It’s a rare condition, so it can be hard to do a really large clinical trial. A lot of physicians think that the prognosis is good and miss out on an opportunity for better treatment and to generate new knowledge.
Also, some people perceive that it’s not actually a problem for people living with it. Cladribine and pentostatin are not terrible chemotherapies, and most people tolerate them very well. But we can make treatment for hairy cell more effective and more tolerable for our patients if we put more effort into researching it.
I’ve heard that you’re a big college football fan. How do you balance your history as a University of Michigan medical school alum with your work for archrival Ohio State?
I went to Northwestern for undergrad, as did several people in my family. So, I usually just claim Northwestern is my football affiliation. It doesn’t inspire much vitriol if you cheer for Northwestern!
And I understand that you live with a pair of guinea pigs. Do tell.
I adopted guinea pigs as pets in medical school. They’re cute and friendly, and they make all this noise for you when you come home. 
Once, one of my clinic patients said, “I don’t want to be your guinea pig.” I thought, “you should be so lucky.” They have quite a lifestyle: They’ve trained me to bring them vegetables, they nap most of the time, and they have a play space, a guinea pig playground.
I thought I liked the guinea pigs more than they liked me. But last fall, I was gone for about 10 days. When I got back, I’d never heard them make so much noise. They were extremely happy to see me. Then for the next 48 hours, one would randomly start whistling for me to come over. I thought, “oh, these things do like me a little bit.”
Dr. Rogers disclosed receiving research funding from Genentech, AbbVie, Novartis, and AstraZeneca and consulting/advisory relationships with AstraZeneca, AbbVie, Genentech, Janssen, Pharmacyclics, BeiGene, Loxo@Lilly, and Alpine Immune Sciences.
A version of this article first appeared on Medscape.com.
Sometimes, however, Dr. Rogers’ guinea pigs pay visits to her workplace. Every Halloween, she dresses them up and shows off their photos to just about everyone. Patients, coworkers, and even random people in the elevator get glimpses of the furry pair, who pose as dinosaurs, bats, aquarium shrimp, sharks, spiders, and bumblebees.
“Being in the hospital is not funny, but guinea pigs dressed up for Halloween is incredibly funny,” Dr. Rogers said. “They make a lot of people smile.”
For physician-scientist Dr. Rogers, a native of suburban Chicago, quality of life for patients is a priority, even when she’s not trying to entertain them and lift their spirits.
The field of hematology “is trying to figure out not only what’s biologically effective for disease, but also what might be best for people living with the condition,” she said. “This is especially true in terms of patient preference for a treatment you complete vs an ongoing or continuous treatment. I really like this idea of having more attention paid to what matters to patients, which the field of medicine sometimes forgets.”
In an interview, Dr. Rogers spoke about the appeal of storytelling in medicine, advances in treatment for CLL and hairy cell leukemia, and the challenges of college football loyalty.
How did you get drawn to medicine?
Ever since I was a kid, I thought, “Oh, I really want to be a doctor. That sounds fun.” At its core, medicine blends things I really like: science, helping people with a problem, and storytelling.
The practice of medicine is a lot about stories — talking to people, figuring out what they’re telling you about what’s going on, then explaining what you know in a way that makes sense to them.
What changes have you seen in leukemia care during your career?
The biggest change is the move from chemotherapies to targeted agents. When I first did a fellowship here at Ohio State, we had studies of ibrutinib, the first-in-class covalent Bruton tyrosine kinase (BTK) inhibitor. We’d see patients who’d been on chemotherapy for the past 10 or 15 years, and then they got in a clinical trial. Ibrutinib worked better than any of the chemotherapy, and they felt better and had fewer side effects.
Now, chemoimmunotherapy is not recommended for CLL, and you can see the impact of targeted agents on the lives of patients. Instead of telling people they need to put aside work and personal plans to take intensive chemotherapy for 6 months, you say: “You’ve got to come to some more appointments to make sure the treatment is going well, and you don’t have too many side effects. But you can expect to continue to work full-time and go to your niece’s wedding out of state or whatever else you want to do.”
What are you most excited about working on?
I’m the principal investigator of a study combining obinutuzumab, ibrutinib, and venetoclax for a fixed duration, a defined treatment course of a little over a year. I just reported the median progression-free survival for phase 2 at the European Hematology Association meeting this spring. It was over 7 years for both patients who had prior treatment and those who hadn’t.
The idea that people could take a year of treatment and get a huge benefit after completing it is quite important. The regimen has gone into phase 3 testing, and we’re now trying to understand the impact in terms of which patients got longer responses or which didn’t.
What are some challenges that remain in CLL?
There are still patients whose CLL becomes resistant to our two most commonly used classes of agents: BTK inhibitors and the BLC2 inhibitor, venetoclax. There are some more BCL2 inhibitors in development, but venetoclax is the only one currently approved.
I am also principal investigator on another study that added venetoclax to ibrutinib when resistance mutations developed that would predict ultimate resistance to ibrutinib. The median progression-free survival in that study was 40.7 months, whereas the expectation with venetoclax alone is 24 months. So, it really improved the amount of time people were in remission. This study is ongoing.
We’ve just started a phase 2 study to have patients take pirtobrutinib, a noncovalent BTK inhibitor, in combination with venetoclax in cases where CLL has become resistant to a covalent BTK inhibitor. Patients will take this combination for about a year and a half.
It’s been really exciting to see the impact of some of these combinations both as first-line CLL treatment and in CLL that’s become resistant. But trying to understand what predicts response is a harder thing. I wish I knew the answers for what causes this synergy between those two classes of drugs.
You also specialize in hairy cell leukemia. Could you talk about what it is?
CLL is the most prevalent adult leukemia in the Western world, whereas hairy cell leukemia is very rare. It’s a slow-growing B-cell cancer that got its name because under the microscope, the cells have hairy projections on them.
It had a survival of only about 2-4 years before the development of purine analogs. After a course of pentostatin or cladribine (2-chlordeoxyadenosine), some people never need treatment again in our natural lifespan.
But some patients don’t benefit from purine analogs, either because they have a devastating infection that makes them unsuitable or for another reason. Or they end up needing treatment every 2-3 years, which isn’t something you want to do for 30 years of someone’s lifespan.
What are some challenges in hairy cell leukemia?
It’s a rare condition, so it can be hard to do a really large clinical trial. A lot of physicians think that the prognosis is good and miss out on an opportunity for better treatment and to generate new knowledge.
Also, some people perceive that it’s not actually a problem for people living with it. Cladribine and pentostatin are not terrible chemotherapies, and most people tolerate them very well. But we can make treatment for hairy cell more effective and more tolerable for our patients if we put more effort into researching it.
I’ve heard that you’re a big college football fan. How do you balance your history as a University of Michigan medical school alum with your work for archrival Ohio State?
I went to Northwestern for undergrad, as did several people in my family. So, I usually just claim Northwestern is my football affiliation. It doesn’t inspire much vitriol if you cheer for Northwestern!
And I understand that you live with a pair of guinea pigs. Do tell.
I adopted guinea pigs as pets in medical school. They’re cute and friendly, and they make all this noise for you when you come home.
Once, one of my clinic patients said, “I don’t want to be your guinea pig.” I thought, “you should be so lucky.” They have quite a lifestyle: They’ve trained me to bring them vegetables, they nap most of the time, and they have a play space, a guinea pig playground.
I thought I liked the guinea pigs more than they liked me. But last fall, I was gone for about 10 days. When I got back, I’d never heard them make so much noise. They were extremely happy to see me. Then for the next 48 hours, one would randomly start whistling for me to come over. I thought, “oh, these things do like me a little bit.”
Dr. Rogers disclosed receiving research funding from Genentech, AbbVie, Novartis, and AstraZeneca and consulting/advisory relationships with AstraZeneca, AbbVie, Genentech, Janssen, Pharmacyclics, BeiGene, Loxo@Lilly, and Alpine Immune Sciences.
A version of this article first appeared on Medscape.com.
Sometimes, however, Dr. Rogers’ guinea pigs pay visits to her workplace. Every Halloween, she dresses them up and shows off their photos to just about everyone. Patients, coworkers, and even random people in the elevator get glimpses of the furry pair, who pose as dinosaurs, bats, aquarium shrimp, sharks, spiders, and bumblebees.
“Being in the hospital is not funny, but guinea pigs dressed up for Halloween is incredibly funny,” Dr. Rogers said. “They make a lot of people smile.”
For physician-scientist Dr. Rogers, a native of suburban Chicago, quality of life for patients is a priority, even when she’s not trying to entertain them and lift their spirits.
The field of hematology “is trying to figure out not only what’s biologically effective for disease, but also what might be best for people living with the condition,” she said. “This is especially true in terms of patient preference for a treatment you complete vs an ongoing or continuous treatment. I really like this idea of having more attention paid to what matters to patients, which the field of medicine sometimes forgets.”
In an interview, Dr. Rogers spoke about the appeal of storytelling in medicine, advances in treatment for CLL and hairy cell leukemia, and the challenges of college football loyalty.
How did you get drawn to medicine?
Ever since I was a kid, I thought, “Oh, I really want to be a doctor. That sounds fun.” At its core, medicine blends things I really like: science, helping people with a problem, and storytelling.
The practice of medicine is a lot about stories — talking to people, figuring out what they’re telling you about what’s going on, then explaining what you know in a way that makes sense to them.
What changes have you seen in leukemia care during your career?
The biggest change is the move from chemotherapies to targeted agents. When I first did a fellowship here at Ohio State, we had studies of ibrutinib, the first-in-class covalent Bruton tyrosine kinase (BTK) inhibitor. We’d see patients who’d been on chemotherapy for the past 10 or 15 years, and then they got in a clinical trial. Ibrutinib worked better than any of the chemotherapy, and they felt better and had fewer side effects.
Now, chemoimmunotherapy is not recommended for CLL, and you can see the impact of targeted agents on the lives of patients. Instead of telling people they need to put aside work and personal plans to take intensive chemotherapy for 6 months, you say: “You’ve got to come to some more appointments to make sure the treatment is going well, and you don’t have too many side effects. But you can expect to continue to work full-time and go to your niece’s wedding out of state or whatever else you want to do.”
What are you most excited about working on?
I’m the principal investigator of a study combining obinutuzumab, ibrutinib, and venetoclax for a fixed duration, a defined treatment course of a little over a year. I just reported the median progression-free survival for phase 2 at the European Hematology Association meeting this spring. It was over 7 years for both patients who had prior treatment and those who hadn’t.
The idea that people could take a year of treatment and get a huge benefit after completing it is quite important. The regimen has gone into phase 3 testing, and we’re now trying to understand the impact in terms of which patients got longer responses or which didn’t.
What are some challenges that remain in CLL?
There are still patients whose CLL becomes resistant to our two most commonly used classes of agents: BTK inhibitors and the BLC2 inhibitor, venetoclax. There are some more BCL2 inhibitors in development, but venetoclax is the only one currently approved.
I am also principal investigator on another study that added venetoclax to ibrutinib when resistance mutations developed that would predict ultimate resistance to ibrutinib. The median progression-free survival in that study was 40.7 months, whereas the expectation with venetoclax alone is 24 months. So, it really improved the amount of time people were in remission. This study is ongoing.
We’ve just started a phase 2 study to have patients take pirtobrutinib, a noncovalent BTK inhibitor, in combination with venetoclax in cases where CLL has become resistant to a covalent BTK inhibitor. Patients will take this combination for about a year and a half.
It’s been really exciting to see the impact of some of these combinations both as first-line CLL treatment and in CLL that’s become resistant. But trying to understand what predicts response is a harder thing. I wish I knew the answers for what causes this synergy between those two classes of drugs.
You also specialize in hairy cell leukemia. Could you talk about what it is?
CLL is the most prevalent adult leukemia in the Western world, whereas hairy cell leukemia is very rare. It’s a slow-growing B-cell cancer that got its name because under the microscope, the cells have hairy projections on them.
It had a survival of only about 2-4 years before the development of purine analogs. After a course of pentostatin or cladribine (2-chlordeoxyadenosine), some people never need treatment again in our natural lifespan.
But some patients don’t benefit from purine analogs, either because they have a devastating infection that makes them unsuitable or for another reason. Or they end up needing treatment every 2-3 years, which isn’t something you want to do for 30 years of someone’s lifespan.
What are some challenges in hairy cell leukemia?
It’s a rare condition, so it can be hard to do a really large clinical trial. A lot of physicians think that the prognosis is good and miss out on an opportunity for better treatment and to generate new knowledge.
Also, some people perceive that it’s not actually a problem for people living with it. Cladribine and pentostatin are not terrible chemotherapies, and most people tolerate them very well. But we can make treatment for hairy cell more effective and more tolerable for our patients if we put more effort into researching it.
I’ve heard that you’re a big college football fan. How do you balance your history as a University of Michigan medical school alum with your work for archrival Ohio State?
I went to Northwestern for undergrad, as did several people in my family. So, I usually just claim Northwestern is my football affiliation. It doesn’t inspire much vitriol if you cheer for Northwestern!
And I understand that you live with a pair of guinea pigs. Do tell.
I adopted guinea pigs as pets in medical school. They’re cute and friendly, and they make all this noise for you when you come home.
Once, one of my clinic patients said, “I don’t want to be your guinea pig.” I thought, “you should be so lucky.” They have quite a lifestyle: They’ve trained me to bring them vegetables, they nap most of the time, and they have a play space, a guinea pig playground.
I thought I liked the guinea pigs more than they liked me. But last fall, I was gone for about 10 days. When I got back, I’d never heard them make so much noise. They were extremely happy to see me. Then for the next 48 hours, one would randomly start whistling for me to come over. I thought, “oh, these things do like me a little bit.”
Dr. Rogers disclosed receiving research funding from Genentech, AbbVie, Novartis, and AstraZeneca and consulting/advisory relationships with AstraZeneca, AbbVie, Genentech, Janssen, Pharmacyclics, BeiGene, Loxo@Lilly, and Alpine Immune Sciences.
A version of this article first appeared on Medscape.com.
Does Medicare Advantage Offer Higher-Value Chemotherapy?
TOPLINE:
METHODOLOGY:
- Private Medicare Advantage plans enroll more than half of the Medicare population, but it is unknown if or how the cost restrictions they impose affect chemotherapy, which accounts for a large portion of cancer care costs.
- Researchers conducted a cohort study using national Medicare data from January 2015 to December 2019 to look at Medicare Advantage enrollment and treatment patterns for patients with cancer receiving chemotherapy.
- The study included 96,501 Medicare Advantage enrollees and 206,274 traditional Medicare beneficiaries who initiated chemotherapy between January 2016 and December 2019 (mean age, ~73 years; ~56% women; Hispanic individuals, 15% and 8%; Black individuals, 15% and 8%; and White individuals, 75% and 86%, respectively).
- Resource use and care quality were measured during a 6-month period following chemotherapy initiation, and survival days were measured 18 months after beginning chemotherapy.
- Resource use measures included hospital inpatient services, outpatient care, prescription drugs, hospice services, and chemotherapy services. Quality measures included chemotherapy-related emergency visits and hospital admissions, as well as avoidable emergency visits and preventable hospitalizations.
TAKEAWAY:
- Medicare Advantage plans had lower resource use than traditional Medicare per enrollee with cancer undergoing chemotherapy ($8718 lower; 95% CI, $8343-$9094).
- The lower resource use was largely caused by fewer chemotherapy visits and less expensive chemotherapy per visit in Medicare Advantage plans ($5032 lower; 95% CI, $4772-$5293).
- Medicare Advantage enrollees had 2.5 percentage points fewer chemotherapy-related emergency department visits and 0.7 percentage points fewer chemotherapy-related hospitalizations than traditional Medicare beneficiaries.
- There was no clinically meaningful difference in survival between Medicare Advantage and traditional Medicare beneficiaries during the 18 months following chemotherapy initiation.
IN PRACTICE:
“Our new finding is that MA [Medicare Advantage] plans had lower resource use than TM [traditional Medicare] among enrollees with cancer undergoing chemotherapy — a serious condition managed by specialists and requiring expensive treatments. This suggests that MA’s cost advantages over TM are not limited to conditions for which low-cost primary care management can avoid costly services,” the authors wrote.
SOURCE:
The study was led by Yamini Kalidindi, PhD, McDermott+ Consulting, Washington, DC. It was published online on September 20, 2024, in JAMA Network Open (doi: 10.1001/jamanetworkopen.2024.34707), with a commentary.
LIMITATIONS:
The study’s findings may be affected by unobserved patient characteristics despite the use of inverse-probability weighting. The exclusion of Medicare Advantage enrollees in contracts with incomplete encounter data limits the generalizability of the results. The study does not apply to beneficiaries without Part D drug coverage. Quality measures were limited to those available from claims and encounter data, lacking information on patients’ cancer stage. The 18-month measure of survival might not adequately capture survival differences associated with early-stage cancers. The study did not measure whether patient care followed recommended guidelines.
DISCLOSURES:
Various authors reported grants from the National Institute on Aging, the National Institutes of Health, The Commonwealth Fund, Arnold Ventures, the National Cancer Institute, the Department of Defense, and the National Institute of Health Care Management. Additional disclosures are noted in the original article.
This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.
TOPLINE:
METHODOLOGY:
- Private Medicare Advantage plans enroll more than half of the Medicare population, but it is unknown if or how the cost restrictions they impose affect chemotherapy, which accounts for a large portion of cancer care costs.
- Researchers conducted a cohort study using national Medicare data from January 2015 to December 2019 to look at Medicare Advantage enrollment and treatment patterns for patients with cancer receiving chemotherapy.
- The study included 96,501 Medicare Advantage enrollees and 206,274 traditional Medicare beneficiaries who initiated chemotherapy between January 2016 and December 2019 (mean age, ~73 years; ~56% women; Hispanic individuals, 15% and 8%; Black individuals, 15% and 8%; and White individuals, 75% and 86%, respectively).
- Resource use and care quality were measured during a 6-month period following chemotherapy initiation, and survival days were measured 18 months after beginning chemotherapy.
- Resource use measures included hospital inpatient services, outpatient care, prescription drugs, hospice services, and chemotherapy services. Quality measures included chemotherapy-related emergency visits and hospital admissions, as well as avoidable emergency visits and preventable hospitalizations.
TAKEAWAY:
- Medicare Advantage plans had lower resource use than traditional Medicare per enrollee with cancer undergoing chemotherapy ($8718 lower; 95% CI, $8343-$9094).
- The lower resource use was largely caused by fewer chemotherapy visits and less expensive chemotherapy per visit in Medicare Advantage plans ($5032 lower; 95% CI, $4772-$5293).
- Medicare Advantage enrollees had 2.5 percentage points fewer chemotherapy-related emergency department visits and 0.7 percentage points fewer chemotherapy-related hospitalizations than traditional Medicare beneficiaries.
- There was no clinically meaningful difference in survival between Medicare Advantage and traditional Medicare beneficiaries during the 18 months following chemotherapy initiation.
IN PRACTICE:
“Our new finding is that MA [Medicare Advantage] plans had lower resource use than TM [traditional Medicare] among enrollees with cancer undergoing chemotherapy — a serious condition managed by specialists and requiring expensive treatments. This suggests that MA’s cost advantages over TM are not limited to conditions for which low-cost primary care management can avoid costly services,” the authors wrote.
SOURCE:
The study was led by Yamini Kalidindi, PhD, McDermott+ Consulting, Washington, DC. It was published online on September 20, 2024, in JAMA Network Open (doi: 10.1001/jamanetworkopen.2024.34707), with a commentary.
LIMITATIONS:
The study’s findings may be affected by unobserved patient characteristics despite the use of inverse-probability weighting. The exclusion of Medicare Advantage enrollees in contracts with incomplete encounter data limits the generalizability of the results. The study does not apply to beneficiaries without Part D drug coverage. Quality measures were limited to those available from claims and encounter data, lacking information on patients’ cancer stage. The 18-month measure of survival might not adequately capture survival differences associated with early-stage cancers. The study did not measure whether patient care followed recommended guidelines.
DISCLOSURES:
Various authors reported grants from the National Institute on Aging, the National Institutes of Health, The Commonwealth Fund, Arnold Ventures, the National Cancer Institute, the Department of Defense, and the National Institute of Health Care Management. Additional disclosures are noted in the original article.
This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.
TOPLINE:
METHODOLOGY:
- Private Medicare Advantage plans enroll more than half of the Medicare population, but it is unknown if or how the cost restrictions they impose affect chemotherapy, which accounts for a large portion of cancer care costs.
- Researchers conducted a cohort study using national Medicare data from January 2015 to December 2019 to look at Medicare Advantage enrollment and treatment patterns for patients with cancer receiving chemotherapy.
- The study included 96,501 Medicare Advantage enrollees and 206,274 traditional Medicare beneficiaries who initiated chemotherapy between January 2016 and December 2019 (mean age, ~73 years; ~56% women; Hispanic individuals, 15% and 8%; Black individuals, 15% and 8%; and White individuals, 75% and 86%, respectively).
- Resource use and care quality were measured during a 6-month period following chemotherapy initiation, and survival days were measured 18 months after beginning chemotherapy.
- Resource use measures included hospital inpatient services, outpatient care, prescription drugs, hospice services, and chemotherapy services. Quality measures included chemotherapy-related emergency visits and hospital admissions, as well as avoidable emergency visits and preventable hospitalizations.
TAKEAWAY:
- Medicare Advantage plans had lower resource use than traditional Medicare per enrollee with cancer undergoing chemotherapy ($8718 lower; 95% CI, $8343-$9094).
- The lower resource use was largely caused by fewer chemotherapy visits and less expensive chemotherapy per visit in Medicare Advantage plans ($5032 lower; 95% CI, $4772-$5293).
- Medicare Advantage enrollees had 2.5 percentage points fewer chemotherapy-related emergency department visits and 0.7 percentage points fewer chemotherapy-related hospitalizations than traditional Medicare beneficiaries.
- There was no clinically meaningful difference in survival between Medicare Advantage and traditional Medicare beneficiaries during the 18 months following chemotherapy initiation.
IN PRACTICE:
“Our new finding is that MA [Medicare Advantage] plans had lower resource use than TM [traditional Medicare] among enrollees with cancer undergoing chemotherapy — a serious condition managed by specialists and requiring expensive treatments. This suggests that MA’s cost advantages over TM are not limited to conditions for which low-cost primary care management can avoid costly services,” the authors wrote.
SOURCE:
The study was led by Yamini Kalidindi, PhD, McDermott+ Consulting, Washington, DC. It was published online on September 20, 2024, in JAMA Network Open (doi: 10.1001/jamanetworkopen.2024.34707), with a commentary.
LIMITATIONS:
The study’s findings may be affected by unobserved patient characteristics despite the use of inverse-probability weighting. The exclusion of Medicare Advantage enrollees in contracts with incomplete encounter data limits the generalizability of the results. The study does not apply to beneficiaries without Part D drug coverage. Quality measures were limited to those available from claims and encounter data, lacking information on patients’ cancer stage. The 18-month measure of survival might not adequately capture survival differences associated with early-stage cancers. The study did not measure whether patient care followed recommended guidelines.
DISCLOSURES:
Various authors reported grants from the National Institute on Aging, the National Institutes of Health, The Commonwealth Fund, Arnold Ventures, the National Cancer Institute, the Department of Defense, and the National Institute of Health Care Management. Additional disclosures are noted in the original article.
This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.
AACR Cancer Progress Report: Big Strides and Big Gaps
The AACR’s 216-page report — an annual endeavor now in its 14th year — focused on the “tremendous” strides made in cancer care, prevention, and early detection and highlighted areas where more research and attention are warranted.
One key area is funding. For the first time since 2016, federal funding for the National Institutes of Health (NIH) and National Cancer Institute (NCI) decreased in the past year. The cuts followed nearly a decade of funding increases that saw the NIH budget expand by nearly $15 billion, and that allowed for a “rapid pace and broad scope” of advances in cancer, AACR’s chief executive officer Margaret Foti, MD, PhD, said during a press briefing.
These recent cuts “threaten to curtail the medical progress seen in recent years and stymie future advancements,” said Dr. Foti, who called on Congress to commit to funding cancer research at significant and consistent levels to “maintain the momentum of progress against cancer.”
Inside the Report: Big Progress
Overall, advances in prevention, early detection, and treatment have helped catch more cancers earlier and save lives.
According to the AACR report, the age-adjusted overall cancer death rate in the United States fell by 33% between 1991 and 2021, meaning about 4.1 million cancer deaths were averted. The overall cancer death rate for children and adolescents has declined by 24% in the past 2 decades. The 5-year relative survival rate for children diagnosed with cancer in the US has improved from 58% for those diagnosed in the mid-1970s to 85% for those diagnosed between 2013 and 2019.
The past fiscal year has seen many new approvals for cancer drugs, diagnostics, and screening tests. From July 1, 2023, to June 30, 2024, the Food and Drug Administration (FDA) approved 15 new anticancer therapeutics, as well as 15 new indications for previously approved agents, one new imaging agent, several artificial intelligence (AI) tools to improve early cancer detection and diagnosis, and two minimally invasive tests for assessing inherited cancer risk or early cancer detection, according to the report.
“Cancer diagnostics are becoming more sophisticated,” AACR president Patricia M. LoRusso, DO, PhD, said during the briefing. “New technologies, such as spatial transcriptomics, are helping us study tumors at a cellular level, and helping to unveil things that we did not initially even begin to understand or think of. AI-based approaches are beginning to transform cancer detection, diagnosis, clinical decision-making, and treatment response monitoring.”
The report also highlights the significant progress in many childhood and adolescent/young adult cancers, Dr. LoRusso noted. These include FDA approvals for two new molecularly targeted therapeutics: tovorafenib for children with certain types of brain tumor and repotrectinib for children with a wide array of cancer types that have a specific genetic alteration known as NTRK gene fusion. It also includes an expanded approval for eflornithine to reduce the risk for relapse in children with high-risk neuroblastoma.
“Decades — decades — of basic research discoveries, have led to these clinical breakthroughs,” she stressed. “These gains against cancer are because of the rapid progress in our ability to decode the cancer genome, which has opened new and innovative avenues for drug development.”
The Gaps
Even with progress in cancer prevention, early detection, and treatment, cancer remains a significant issue.
“In 2024, it is estimated that more than 2 million new cases of cancer will be diagnosed in the United States. More than 611,000 people will die from the disease,” according to the report.
The 2024 report shows that incidence rates for some cancers are increasing in the United States, including vaccine-preventable cancers such as human papillomavirus (HPV)–associated oral cancers and, in young adults, cervical cancers. A recent analysis also found that overall cervical cancer incidence among women aged 30-34 years increased by 2.5% a year between 2012 and 2019.
Furthermore, despite clear evidence demonstrating that the HPV vaccine reduces cervical cancer incidence, uptake has remained poor, with only 38.6% of US children and adolescents aged 9-17 years receiving at least one dose of the vaccine in 2022.
Early-onset cancers are also increasing. Rates of breast, colorectal, and other cancers are on the rise in adults younger than 50 years, the report noted.
The report also pointed to data that 40% of all cancer cases in the United States can be attributed to preventable factors, such as smoking, excess body weight, and alcohol. However, our understanding of these risk factors has improved. Excessive levels of alcohol consumption have, for instance, been shown to increase the risk for six different types of cancer: certain types of head and neck cancer, esophageal squamous cell carcinoma, and breast, colorectal, liver, and stomach cancers.
Financial toxicity remains prevalent as well.
The report explains that financial hardship following a cancer diagnosis is widespread, and the effects can last for years. In fact, more than 40% of patients can spend their entire life savings within the first 2 years of cancer treatment. Among adult survivors of childhood cancers, 20.7% had trouble paying their medical bills, 29.9% said they had been sent to debt collection for unpaid bills, 14.1% had forgone medical care, and 26.8% could not afford nutritious meals.
For young cancer survivors, the lifetime costs associated with a diagnosis of cancer are substantial, reaching an average of $259,324 per person.
On a global level, it is estimated that from 2020 to 2050, the cumulative economic burden of cancer will be $25.2 trillion.
The Path Forward
Despite these challenges, Dr. LoRusso said, “it is unquestionable that we are in a time of unparalleled opportunities in cancer research.
“I am excited about what the future holds for cancer research, and especially for patient care,” she said.
However, funding commitments are needed to avoid impeding this momentum and losing a “talented and creative young workforce” that has brought new ideas and new technologies to the table.
Continued robust funding will help “to markedly improve cancer care, increase cancer survivorship, spur economic growth, and maintain the United States’ position as the global leader in science and medical research,” she added.
The AACR report specifically calls on Congress to:
- Appropriate at least $51.3 billion in fiscal year 2025 for the base budget of the NIH and at least $7.934 billion for the NCI.
- Provide $3.6 billion in dedicated funding for Cancer Moonshot activities through fiscal year 2026 in addition to other funding, consistent with the President’s fiscal year 2025 budget.
- Appropriate at least $472.4 million in fiscal year 2025 for the CDC’s Division of Cancer Prevention to support comprehensive cancer control, central cancer registries, and screening and awareness programs for specific cancers.
- Allocate $55 million in funding for the Oncology Center of Excellence at FDA in fiscal year 2025 to provide regulators with the staff and tools necessary to conduct expedited review of cancer-related medical products.
By working together with Congress and other stakeholders, “we will be able to accelerate the pace of progress and make major strides toward the lifesaving goal of preventing and curing all cancers at the earliest possible time,” Dr. Foti said. “I believe if we do that ... one day we will win this war on cancer.”
A version of this article first appeared on Medscape.com.
The AACR’s 216-page report — an annual endeavor now in its 14th year — focused on the “tremendous” strides made in cancer care, prevention, and early detection and highlighted areas where more research and attention are warranted.
One key area is funding. For the first time since 2016, federal funding for the National Institutes of Health (NIH) and National Cancer Institute (NCI) decreased in the past year. The cuts followed nearly a decade of funding increases that saw the NIH budget expand by nearly $15 billion, and that allowed for a “rapid pace and broad scope” of advances in cancer, AACR’s chief executive officer Margaret Foti, MD, PhD, said during a press briefing.
These recent cuts “threaten to curtail the medical progress seen in recent years and stymie future advancements,” said Dr. Foti, who called on Congress to commit to funding cancer research at significant and consistent levels to “maintain the momentum of progress against cancer.”
Inside the Report: Big Progress
Overall, advances in prevention, early detection, and treatment have helped catch more cancers earlier and save lives.
According to the AACR report, the age-adjusted overall cancer death rate in the United States fell by 33% between 1991 and 2021, meaning about 4.1 million cancer deaths were averted. The overall cancer death rate for children and adolescents has declined by 24% in the past 2 decades. The 5-year relative survival rate for children diagnosed with cancer in the US has improved from 58% for those diagnosed in the mid-1970s to 85% for those diagnosed between 2013 and 2019.
The past fiscal year has seen many new approvals for cancer drugs, diagnostics, and screening tests. From July 1, 2023, to June 30, 2024, the Food and Drug Administration (FDA) approved 15 new anticancer therapeutics, as well as 15 new indications for previously approved agents, one new imaging agent, several artificial intelligence (AI) tools to improve early cancer detection and diagnosis, and two minimally invasive tests for assessing inherited cancer risk or early cancer detection, according to the report.
“Cancer diagnostics are becoming more sophisticated,” AACR president Patricia M. LoRusso, DO, PhD, said during the briefing. “New technologies, such as spatial transcriptomics, are helping us study tumors at a cellular level, and helping to unveil things that we did not initially even begin to understand or think of. AI-based approaches are beginning to transform cancer detection, diagnosis, clinical decision-making, and treatment response monitoring.”
The report also highlights the significant progress in many childhood and adolescent/young adult cancers, Dr. LoRusso noted. These include FDA approvals for two new molecularly targeted therapeutics: tovorafenib for children with certain types of brain tumor and repotrectinib for children with a wide array of cancer types that have a specific genetic alteration known as NTRK gene fusion. It also includes an expanded approval for eflornithine to reduce the risk for relapse in children with high-risk neuroblastoma.
“Decades — decades — of basic research discoveries, have led to these clinical breakthroughs,” she stressed. “These gains against cancer are because of the rapid progress in our ability to decode the cancer genome, which has opened new and innovative avenues for drug development.”
The Gaps
Even with progress in cancer prevention, early detection, and treatment, cancer remains a significant issue.
“In 2024, it is estimated that more than 2 million new cases of cancer will be diagnosed in the United States. More than 611,000 people will die from the disease,” according to the report.
The 2024 report shows that incidence rates for some cancers are increasing in the United States, including vaccine-preventable cancers such as human papillomavirus (HPV)–associated oral cancers and, in young adults, cervical cancers. A recent analysis also found that overall cervical cancer incidence among women aged 30-34 years increased by 2.5% a year between 2012 and 2019.
Furthermore, despite clear evidence demonstrating that the HPV vaccine reduces cervical cancer incidence, uptake has remained poor, with only 38.6% of US children and adolescents aged 9-17 years receiving at least one dose of the vaccine in 2022.
Early-onset cancers are also increasing. Rates of breast, colorectal, and other cancers are on the rise in adults younger than 50 years, the report noted.
The report also pointed to data that 40% of all cancer cases in the United States can be attributed to preventable factors, such as smoking, excess body weight, and alcohol. However, our understanding of these risk factors has improved. Excessive levels of alcohol consumption have, for instance, been shown to increase the risk for six different types of cancer: certain types of head and neck cancer, esophageal squamous cell carcinoma, and breast, colorectal, liver, and stomach cancers.
Financial toxicity remains prevalent as well.
The report explains that financial hardship following a cancer diagnosis is widespread, and the effects can last for years. In fact, more than 40% of patients can spend their entire life savings within the first 2 years of cancer treatment. Among adult survivors of childhood cancers, 20.7% had trouble paying their medical bills, 29.9% said they had been sent to debt collection for unpaid bills, 14.1% had forgone medical care, and 26.8% could not afford nutritious meals.
For young cancer survivors, the lifetime costs associated with a diagnosis of cancer are substantial, reaching an average of $259,324 per person.
On a global level, it is estimated that from 2020 to 2050, the cumulative economic burden of cancer will be $25.2 trillion.
The Path Forward
Despite these challenges, Dr. LoRusso said, “it is unquestionable that we are in a time of unparalleled opportunities in cancer research.
“I am excited about what the future holds for cancer research, and especially for patient care,” she said.
However, funding commitments are needed to avoid impeding this momentum and losing a “talented and creative young workforce” that has brought new ideas and new technologies to the table.
Continued robust funding will help “to markedly improve cancer care, increase cancer survivorship, spur economic growth, and maintain the United States’ position as the global leader in science and medical research,” she added.
The AACR report specifically calls on Congress to:
- Appropriate at least $51.3 billion in fiscal year 2025 for the base budget of the NIH and at least $7.934 billion for the NCI.
- Provide $3.6 billion in dedicated funding for Cancer Moonshot activities through fiscal year 2026 in addition to other funding, consistent with the President’s fiscal year 2025 budget.
- Appropriate at least $472.4 million in fiscal year 2025 for the CDC’s Division of Cancer Prevention to support comprehensive cancer control, central cancer registries, and screening and awareness programs for specific cancers.
- Allocate $55 million in funding for the Oncology Center of Excellence at FDA in fiscal year 2025 to provide regulators with the staff and tools necessary to conduct expedited review of cancer-related medical products.
By working together with Congress and other stakeholders, “we will be able to accelerate the pace of progress and make major strides toward the lifesaving goal of preventing and curing all cancers at the earliest possible time,” Dr. Foti said. “I believe if we do that ... one day we will win this war on cancer.”
A version of this article first appeared on Medscape.com.
The AACR’s 216-page report — an annual endeavor now in its 14th year — focused on the “tremendous” strides made in cancer care, prevention, and early detection and highlighted areas where more research and attention are warranted.
One key area is funding. For the first time since 2016, federal funding for the National Institutes of Health (NIH) and National Cancer Institute (NCI) decreased in the past year. The cuts followed nearly a decade of funding increases that saw the NIH budget expand by nearly $15 billion, and that allowed for a “rapid pace and broad scope” of advances in cancer, AACR’s chief executive officer Margaret Foti, MD, PhD, said during a press briefing.
These recent cuts “threaten to curtail the medical progress seen in recent years and stymie future advancements,” said Dr. Foti, who called on Congress to commit to funding cancer research at significant and consistent levels to “maintain the momentum of progress against cancer.”
Inside the Report: Big Progress
Overall, advances in prevention, early detection, and treatment have helped catch more cancers earlier and save lives.
According to the AACR report, the age-adjusted overall cancer death rate in the United States fell by 33% between 1991 and 2021, meaning about 4.1 million cancer deaths were averted. The overall cancer death rate for children and adolescents has declined by 24% in the past 2 decades. The 5-year relative survival rate for children diagnosed with cancer in the US has improved from 58% for those diagnosed in the mid-1970s to 85% for those diagnosed between 2013 and 2019.
The past fiscal year has seen many new approvals for cancer drugs, diagnostics, and screening tests. From July 1, 2023, to June 30, 2024, the Food and Drug Administration (FDA) approved 15 new anticancer therapeutics, as well as 15 new indications for previously approved agents, one new imaging agent, several artificial intelligence (AI) tools to improve early cancer detection and diagnosis, and two minimally invasive tests for assessing inherited cancer risk or early cancer detection, according to the report.
“Cancer diagnostics are becoming more sophisticated,” AACR president Patricia M. LoRusso, DO, PhD, said during the briefing. “New technologies, such as spatial transcriptomics, are helping us study tumors at a cellular level, and helping to unveil things that we did not initially even begin to understand or think of. AI-based approaches are beginning to transform cancer detection, diagnosis, clinical decision-making, and treatment response monitoring.”
The report also highlights the significant progress in many childhood and adolescent/young adult cancers, Dr. LoRusso noted. These include FDA approvals for two new molecularly targeted therapeutics: tovorafenib for children with certain types of brain tumor and repotrectinib for children with a wide array of cancer types that have a specific genetic alteration known as NTRK gene fusion. It also includes an expanded approval for eflornithine to reduce the risk for relapse in children with high-risk neuroblastoma.
“Decades — decades — of basic research discoveries, have led to these clinical breakthroughs,” she stressed. “These gains against cancer are because of the rapid progress in our ability to decode the cancer genome, which has opened new and innovative avenues for drug development.”
The Gaps
Even with progress in cancer prevention, early detection, and treatment, cancer remains a significant issue.
“In 2024, it is estimated that more than 2 million new cases of cancer will be diagnosed in the United States. More than 611,000 people will die from the disease,” according to the report.
The 2024 report shows that incidence rates for some cancers are increasing in the United States, including vaccine-preventable cancers such as human papillomavirus (HPV)–associated oral cancers and, in young adults, cervical cancers. A recent analysis also found that overall cervical cancer incidence among women aged 30-34 years increased by 2.5% a year between 2012 and 2019.
Furthermore, despite clear evidence demonstrating that the HPV vaccine reduces cervical cancer incidence, uptake has remained poor, with only 38.6% of US children and adolescents aged 9-17 years receiving at least one dose of the vaccine in 2022.
Early-onset cancers are also increasing. Rates of breast, colorectal, and other cancers are on the rise in adults younger than 50 years, the report noted.
The report also pointed to data that 40% of all cancer cases in the United States can be attributed to preventable factors, such as smoking, excess body weight, and alcohol. However, our understanding of these risk factors has improved. Excessive levels of alcohol consumption have, for instance, been shown to increase the risk for six different types of cancer: certain types of head and neck cancer, esophageal squamous cell carcinoma, and breast, colorectal, liver, and stomach cancers.
Financial toxicity remains prevalent as well.
The report explains that financial hardship following a cancer diagnosis is widespread, and the effects can last for years. In fact, more than 40% of patients can spend their entire life savings within the first 2 years of cancer treatment. Among adult survivors of childhood cancers, 20.7% had trouble paying their medical bills, 29.9% said they had been sent to debt collection for unpaid bills, 14.1% had forgone medical care, and 26.8% could not afford nutritious meals.
For young cancer survivors, the lifetime costs associated with a diagnosis of cancer are substantial, reaching an average of $259,324 per person.
On a global level, it is estimated that from 2020 to 2050, the cumulative economic burden of cancer will be $25.2 trillion.
The Path Forward
Despite these challenges, Dr. LoRusso said, “it is unquestionable that we are in a time of unparalleled opportunities in cancer research.
“I am excited about what the future holds for cancer research, and especially for patient care,” she said.
However, funding commitments are needed to avoid impeding this momentum and losing a “talented and creative young workforce” that has brought new ideas and new technologies to the table.
Continued robust funding will help “to markedly improve cancer care, increase cancer survivorship, spur economic growth, and maintain the United States’ position as the global leader in science and medical research,” she added.
The AACR report specifically calls on Congress to:
- Appropriate at least $51.3 billion in fiscal year 2025 for the base budget of the NIH and at least $7.934 billion for the NCI.
- Provide $3.6 billion in dedicated funding for Cancer Moonshot activities through fiscal year 2026 in addition to other funding, consistent with the President’s fiscal year 2025 budget.
- Appropriate at least $472.4 million in fiscal year 2025 for the CDC’s Division of Cancer Prevention to support comprehensive cancer control, central cancer registries, and screening and awareness programs for specific cancers.
- Allocate $55 million in funding for the Oncology Center of Excellence at FDA in fiscal year 2025 to provide regulators with the staff and tools necessary to conduct expedited review of cancer-related medical products.
By working together with Congress and other stakeholders, “we will be able to accelerate the pace of progress and make major strides toward the lifesaving goal of preventing and curing all cancers at the earliest possible time,” Dr. Foti said. “I believe if we do that ... one day we will win this war on cancer.”
A version of this article first appeared on Medscape.com.
Cancer Risk: Are Pesticides the New Smoking?
Pesticides have transformed modern agriculture by boosting production yields and helping alleviate food insecurity amid rapid global population growth. However, from a public health perspective, exposure to pesticides has been linked to numerous harmful effects, including neurologic disorders like Parkinson’s disease, weakened immune function, and an increased risk for cancer.
thus offering a limited perspective.
A comprehensive assessment of how pesticide use affects cancer risk across a broader population has yet to be conducted.
A recent population-level study aimed to address this gap by evaluating cancer risks in the US population using a model that accounts for pesticide use and adjusts for various factors. The goal was to identify regional disparities in exposure and contribute to the development of public health policies that protect populations from potential harm.
Calculating Cancer Risk
Researchers developed a model using several data sources to estimate the additional cancer risk from agricultural pesticide use. Key data included:
- Pesticide use data from the US Geological Survey in 2019, which covered 69 agricultural pesticides across 3143 counties
- Cancer incidence rates per 100,000 people, which were collected between 2015 and 2019 by the National Institutes of Health and the Centers for Disease Control and Prevention; these data covered various cancers, including bladder, colorectal, leukemia, lung, non-Hodgkin lymphoma, and pancreatic cancers
- Covariates, including smoking prevalence, the Social Vulnerability Index, agricultural land use, and total US population in 2019
Pesticide use profile patterns were developed using latent class analysis, a statistical method used to identify homogeneous subgroups within a heterogeneous population. A generalized linear model then estimated how these pesticide use patterns and the covariates affected cancer incidence.
The model highlighted regions with the highest and lowest “additional” cancer risks linked to pesticide exposure, calculating the estimated increase in cancer cases per year that resulted from variations in agricultural pesticide use.
Midwest Most Affected
While this model doesn’t establish causality or assess individual risk, it reveals regional trends in the association between pesticide use patterns and cancer incidence from a population-based perspective.
The Midwest, known for its high corn production, emerged as the region most affected by pesticide use. Compared with regions with the lowest risk, the Midwest faced an additional 154,541 cancer cases annually across all types. For colorectal and pancreatic cancers, the yearly increases were 20,927 and 3835 cases, respectively. Similar trends were observed for leukemia and non-Hodgkin lymphoma.
Pesticides vs Smoking
The researchers also estimated the additional cancer risk related to smoking, using the same model. They found that pesticides contributed to a higher risk for cancer than smoking in several cases.
The most significant difference was observed with non-Hodgkin lymphoma, where pesticides were linked to 154.1% more cases than smoking. For all cancers combined, as well as bladder cancer and leukemia, the increases were moderate: 18.7%, 19.3%, and 21.0%, respectively.
This result highlights the importance of considering pesticide exposure alongside smoking when studying cancer risks.
Expanding Scope of Research
Some limitations of this study should be noted. Certain counties lacked complete data, and there was heterogeneity in the size and population of the counties studied. The research also did not account for seasonal and migrant workers, who are likely to be heavily exposed. In addition, the data used in the study were not independently validated, and they could not be used to assess individual risk.
The effect of pesticides on human health is a vast and critical field of research, often focusing on a limited range of pesticides or specific cancers. This study stands out by taking a broader, more holistic approach, aiming to highlight regional inequalities and identify less-studied pesticides that could be future research priorities.
Given the significant public health impact, the authors encouraged the authorities to share these findings with the most vulnerable communities to raise awareness.
This story was translated from JIM using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.
Pesticides have transformed modern agriculture by boosting production yields and helping alleviate food insecurity amid rapid global population growth. However, from a public health perspective, exposure to pesticides has been linked to numerous harmful effects, including neurologic disorders like Parkinson’s disease, weakened immune function, and an increased risk for cancer.
thus offering a limited perspective.
A comprehensive assessment of how pesticide use affects cancer risk across a broader population has yet to be conducted.
A recent population-level study aimed to address this gap by evaluating cancer risks in the US population using a model that accounts for pesticide use and adjusts for various factors. The goal was to identify regional disparities in exposure and contribute to the development of public health policies that protect populations from potential harm.
Calculating Cancer Risk
Researchers developed a model using several data sources to estimate the additional cancer risk from agricultural pesticide use. Key data included:
- Pesticide use data from the US Geological Survey in 2019, which covered 69 agricultural pesticides across 3143 counties
- Cancer incidence rates per 100,000 people, which were collected between 2015 and 2019 by the National Institutes of Health and the Centers for Disease Control and Prevention; these data covered various cancers, including bladder, colorectal, leukemia, lung, non-Hodgkin lymphoma, and pancreatic cancers
- Covariates, including smoking prevalence, the Social Vulnerability Index, agricultural land use, and total US population in 2019
Pesticide use profile patterns were developed using latent class analysis, a statistical method used to identify homogeneous subgroups within a heterogeneous population. A generalized linear model then estimated how these pesticide use patterns and the covariates affected cancer incidence.
The model highlighted regions with the highest and lowest “additional” cancer risks linked to pesticide exposure, calculating the estimated increase in cancer cases per year that resulted from variations in agricultural pesticide use.
Midwest Most Affected
While this model doesn’t establish causality or assess individual risk, it reveals regional trends in the association between pesticide use patterns and cancer incidence from a population-based perspective.
The Midwest, known for its high corn production, emerged as the region most affected by pesticide use. Compared with regions with the lowest risk, the Midwest faced an additional 154,541 cancer cases annually across all types. For colorectal and pancreatic cancers, the yearly increases were 20,927 and 3835 cases, respectively. Similar trends were observed for leukemia and non-Hodgkin lymphoma.
Pesticides vs Smoking
The researchers also estimated the additional cancer risk related to smoking, using the same model. They found that pesticides contributed to a higher risk for cancer than smoking in several cases.
The most significant difference was observed with non-Hodgkin lymphoma, where pesticides were linked to 154.1% more cases than smoking. For all cancers combined, as well as bladder cancer and leukemia, the increases were moderate: 18.7%, 19.3%, and 21.0%, respectively.
This result highlights the importance of considering pesticide exposure alongside smoking when studying cancer risks.
Expanding Scope of Research
Some limitations of this study should be noted. Certain counties lacked complete data, and there was heterogeneity in the size and population of the counties studied. The research also did not account for seasonal and migrant workers, who are likely to be heavily exposed. In addition, the data used in the study were not independently validated, and they could not be used to assess individual risk.
The effect of pesticides on human health is a vast and critical field of research, often focusing on a limited range of pesticides or specific cancers. This study stands out by taking a broader, more holistic approach, aiming to highlight regional inequalities and identify less-studied pesticides that could be future research priorities.
Given the significant public health impact, the authors encouraged the authorities to share these findings with the most vulnerable communities to raise awareness.
This story was translated from JIM using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.
Pesticides have transformed modern agriculture by boosting production yields and helping alleviate food insecurity amid rapid global population growth. However, from a public health perspective, exposure to pesticides has been linked to numerous harmful effects, including neurologic disorders like Parkinson’s disease, weakened immune function, and an increased risk for cancer.
thus offering a limited perspective.
A comprehensive assessment of how pesticide use affects cancer risk across a broader population has yet to be conducted.
A recent population-level study aimed to address this gap by evaluating cancer risks in the US population using a model that accounts for pesticide use and adjusts for various factors. The goal was to identify regional disparities in exposure and contribute to the development of public health policies that protect populations from potential harm.
Calculating Cancer Risk
Researchers developed a model using several data sources to estimate the additional cancer risk from agricultural pesticide use. Key data included:
- Pesticide use data from the US Geological Survey in 2019, which covered 69 agricultural pesticides across 3143 counties
- Cancer incidence rates per 100,000 people, which were collected between 2015 and 2019 by the National Institutes of Health and the Centers for Disease Control and Prevention; these data covered various cancers, including bladder, colorectal, leukemia, lung, non-Hodgkin lymphoma, and pancreatic cancers
- Covariates, including smoking prevalence, the Social Vulnerability Index, agricultural land use, and total US population in 2019
Pesticide use profile patterns were developed using latent class analysis, a statistical method used to identify homogeneous subgroups within a heterogeneous population. A generalized linear model then estimated how these pesticide use patterns and the covariates affected cancer incidence.
The model highlighted regions with the highest and lowest “additional” cancer risks linked to pesticide exposure, calculating the estimated increase in cancer cases per year that resulted from variations in agricultural pesticide use.
Midwest Most Affected
While this model doesn’t establish causality or assess individual risk, it reveals regional trends in the association between pesticide use patterns and cancer incidence from a population-based perspective.
The Midwest, known for its high corn production, emerged as the region most affected by pesticide use. Compared with regions with the lowest risk, the Midwest faced an additional 154,541 cancer cases annually across all types. For colorectal and pancreatic cancers, the yearly increases were 20,927 and 3835 cases, respectively. Similar trends were observed for leukemia and non-Hodgkin lymphoma.
Pesticides vs Smoking
The researchers also estimated the additional cancer risk related to smoking, using the same model. They found that pesticides contributed to a higher risk for cancer than smoking in several cases.
The most significant difference was observed with non-Hodgkin lymphoma, where pesticides were linked to 154.1% more cases than smoking. For all cancers combined, as well as bladder cancer and leukemia, the increases were moderate: 18.7%, 19.3%, and 21.0%, respectively.
This result highlights the importance of considering pesticide exposure alongside smoking when studying cancer risks.
Expanding Scope of Research
Some limitations of this study should be noted. Certain counties lacked complete data, and there was heterogeneity in the size and population of the counties studied. The research also did not account for seasonal and migrant workers, who are likely to be heavily exposed. In addition, the data used in the study were not independently validated, and they could not be used to assess individual risk.
The effect of pesticides on human health is a vast and critical field of research, often focusing on a limited range of pesticides or specific cancers. This study stands out by taking a broader, more holistic approach, aiming to highlight regional inequalities and identify less-studied pesticides that could be future research priorities.
Given the significant public health impact, the authors encouraged the authorities to share these findings with the most vulnerable communities to raise awareness.
This story was translated from JIM using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.
To Choose the Best First-line Drug for CML, Consider Efficacy and Cost
When it comes to selecting a cost-effective, first-line tyrosine kinase inhibitor (TKI) for the treatment of chronic myeloid leukemia (CML), consider the treatment goal.
For survival, generic imatinib remains the gold standard, Elias Jabbour, MD, said during a session at the annual meeting of the Society of Hematologic Oncology in Houston.
For treatment-free remission, generic dasatinib or another generic second-generation TKI is needed, but not yet available in the United States, so generic imatinib is the best current choice, said Dr. Jabbour, a professor of medicine in the Department of Leukemia at the University of Texas MD Anderson Cancer Center, Houston.
Prior to the availability of generic imatinib, that wasn’t the case, he noted, explaining that second-generation TKIs met the cost-efficacy criteria, but now — at about $35 per month or about $400 per year — imatinib is far less expensive than the approximately $250,000 per year that brand-name second- and third-generation TKIs can currently cost.
To have treatment value, any new TKI should cost $40,000-$50,000 per quality-adjusted life-year, which is defined as the quality and duration of life after a novel TKI vs with the existing standard of care, Dr. Jabbour said.
And to qualify as a frontline therapy for CML, any new TKI should show efficacy superior to second-generation TKIs, in addition to meeting the cost-effectiveness criteria.
“It is hard to show survival benefit anymore, but we need to improve on the rate of durable deep molecular remission,” he said.
An equivalent or better long-term safety profile over at least 7-8 years is also needed.
Based on the current literature, none of the TKIs currently being evaluated has met that standard, although some trials are ongoing.
In a recent editorial, Dr. Jabbour and colleagues outlined treatment recommendations based on the currently available data. They suggested using lower-than-approved doses of TKIs in both frontline and later therapies to reduce toxicity, improve treatment compliance, and reduce costs.
They also suggested that the absence of an early molecular response might not warrant changing the TKI, especially when a second-generation TKI was used first line.
When treatment-free remission is not a therapeutic goal or is unlikely, changing the TKI to improve the depth of molecular response, which has been shown to improve the likelihood of treatment-free remission, could do more harm than good, they argued.
Instead, consider reducing the dose to manage reversible side effects, they suggested, noting that generic imatinib, and eventually generic dasatinib and possibly other generic second-generation TKIs, will likely offer 90% of patients with CML an effective, safe, and affordable treatment that normalizes life expectancy and leads to treatment-free remission in 30%-50% of patients over time.
Dr. Jabbour disclosed ties with AbbVie, Almoosa Specialist Hospital, Amgen, Ascentage Pharma, Biologix FZ, Hikma Pharmaceuticals, Kite, Takeda, and Terns.
A version of this article first appeared on Medscape.com.
When it comes to selecting a cost-effective, first-line tyrosine kinase inhibitor (TKI) for the treatment of chronic myeloid leukemia (CML), consider the treatment goal.
For survival, generic imatinib remains the gold standard, Elias Jabbour, MD, said during a session at the annual meeting of the Society of Hematologic Oncology in Houston.
For treatment-free remission, generic dasatinib or another generic second-generation TKI is needed, but not yet available in the United States, so generic imatinib is the best current choice, said Dr. Jabbour, a professor of medicine in the Department of Leukemia at the University of Texas MD Anderson Cancer Center, Houston.
Prior to the availability of generic imatinib, that wasn’t the case, he noted, explaining that second-generation TKIs met the cost-efficacy criteria, but now — at about $35 per month or about $400 per year — imatinib is far less expensive than the approximately $250,000 per year that brand-name second- and third-generation TKIs can currently cost.
To have treatment value, any new TKI should cost $40,000-$50,000 per quality-adjusted life-year, which is defined as the quality and duration of life after a novel TKI vs with the existing standard of care, Dr. Jabbour said.
And to qualify as a frontline therapy for CML, any new TKI should show efficacy superior to second-generation TKIs, in addition to meeting the cost-effectiveness criteria.
“It is hard to show survival benefit anymore, but we need to improve on the rate of durable deep molecular remission,” he said.
An equivalent or better long-term safety profile over at least 7-8 years is also needed.
Based on the current literature, none of the TKIs currently being evaluated has met that standard, although some trials are ongoing.
In a recent editorial, Dr. Jabbour and colleagues outlined treatment recommendations based on the currently available data. They suggested using lower-than-approved doses of TKIs in both frontline and later therapies to reduce toxicity, improve treatment compliance, and reduce costs.
They also suggested that the absence of an early molecular response might not warrant changing the TKI, especially when a second-generation TKI was used first line.
When treatment-free remission is not a therapeutic goal or is unlikely, changing the TKI to improve the depth of molecular response, which has been shown to improve the likelihood of treatment-free remission, could do more harm than good, they argued.
Instead, consider reducing the dose to manage reversible side effects, they suggested, noting that generic imatinib, and eventually generic dasatinib and possibly other generic second-generation TKIs, will likely offer 90% of patients with CML an effective, safe, and affordable treatment that normalizes life expectancy and leads to treatment-free remission in 30%-50% of patients over time.
Dr. Jabbour disclosed ties with AbbVie, Almoosa Specialist Hospital, Amgen, Ascentage Pharma, Biologix FZ, Hikma Pharmaceuticals, Kite, Takeda, and Terns.
A version of this article first appeared on Medscape.com.
When it comes to selecting a cost-effective, first-line tyrosine kinase inhibitor (TKI) for the treatment of chronic myeloid leukemia (CML), consider the treatment goal.
For survival, generic imatinib remains the gold standard, Elias Jabbour, MD, said during a session at the annual meeting of the Society of Hematologic Oncology in Houston.
For treatment-free remission, generic dasatinib or another generic second-generation TKI is needed, but not yet available in the United States, so generic imatinib is the best current choice, said Dr. Jabbour, a professor of medicine in the Department of Leukemia at the University of Texas MD Anderson Cancer Center, Houston.
Prior to the availability of generic imatinib, that wasn’t the case, he noted, explaining that second-generation TKIs met the cost-efficacy criteria, but now — at about $35 per month or about $400 per year — imatinib is far less expensive than the approximately $250,000 per year that brand-name second- and third-generation TKIs can currently cost.
To have treatment value, any new TKI should cost $40,000-$50,000 per quality-adjusted life-year, which is defined as the quality and duration of life after a novel TKI vs with the existing standard of care, Dr. Jabbour said.
And to qualify as a frontline therapy for CML, any new TKI should show efficacy superior to second-generation TKIs, in addition to meeting the cost-effectiveness criteria.
“It is hard to show survival benefit anymore, but we need to improve on the rate of durable deep molecular remission,” he said.
An equivalent or better long-term safety profile over at least 7-8 years is also needed.
Based on the current literature, none of the TKIs currently being evaluated has met that standard, although some trials are ongoing.
In a recent editorial, Dr. Jabbour and colleagues outlined treatment recommendations based on the currently available data. They suggested using lower-than-approved doses of TKIs in both frontline and later therapies to reduce toxicity, improve treatment compliance, and reduce costs.
They also suggested that the absence of an early molecular response might not warrant changing the TKI, especially when a second-generation TKI was used first line.
When treatment-free remission is not a therapeutic goal or is unlikely, changing the TKI to improve the depth of molecular response, which has been shown to improve the likelihood of treatment-free remission, could do more harm than good, they argued.
Instead, consider reducing the dose to manage reversible side effects, they suggested, noting that generic imatinib, and eventually generic dasatinib and possibly other generic second-generation TKIs, will likely offer 90% of patients with CML an effective, safe, and affordable treatment that normalizes life expectancy and leads to treatment-free remission in 30%-50% of patients over time.
Dr. Jabbour disclosed ties with AbbVie, Almoosa Specialist Hospital, Amgen, Ascentage Pharma, Biologix FZ, Hikma Pharmaceuticals, Kite, Takeda, and Terns.
A version of this article first appeared on Medscape.com.
FROM SOHO 2024
Do Clonal Hematopoiesis and Mosaic Chromosomal Alterations Increase Solid Tumor Risk?
Clonal hematopoiesis of indeterminate potential (CHIP) and mosaic chromosomal alterations (mCAs) are associated with an increased risk for breast cancer, and CHIP is associated with increased mortality in patients with colon cancer, according to the authors of new research.
These findings, drawn from almost 11,000 patients in the Women’s Health Initiative (WHI) study, add further evidence that CHIP and mCA drive solid tumor risk, alongside known associations with hematologic malignancies, reported lead author Pinkal Desai, MD, associate professor of medicine and clinical director of molecular aging at Englander Institute for Precision Medicine, Weill Cornell Medical College, New York City, and colleagues.
How This Study Differs From Others of Breast Cancer Risk Factors
“The independent effect of CHIP and mCA on risk and mortality from solid tumors has not been elucidated due to lack of detailed data on mortality outcomes and risk factors,” the investigators wrote in Cancer, although some previous studies have suggested a link.
In particular, the investigators highlighted a 2022 UK Biobank study, which reported an association between CHIP and lung cancer and a borderline association with breast cancer that did not quite reach statistical significance.
But the UK Biobank study was confined to a UK population, Dr. Desai noted in an interview, and the data were less detailed than those in the present investigation.
“In terms of risk, the part that was lacking in previous studies was a comprehensive assessment of risk factors that increase risk for all these cancers,” Dr. Desai said. “For example, for breast cancer, we had very detailed data on [participants’] Gail risk score, which is known to impact breast cancer risk. We also had mammogram data and colonoscopy data.”
In an accompanying editorial, Koichi Takahashi, MD, PhD , and Nehali Shah, BS, of The University of Texas MD Anderson Cancer Center, Houston, Texas, pointed out the same UK Biobank findings, then noted that CHIP has also been linked with worse overall survival in unselected cancer patients. Still, they wrote, “the impact of CH on cancer risk and mortality remains controversial due to conflicting data and context‐dependent effects,” necessitating studies like this one by Dr. Desai and colleagues.
How Was the Relationship Between CHIP, MCA, and Solid Tumor Risk Assessed?
To explore possible associations between CHIP, mCA, and solid tumors, the investigators analyzed whole genome sequencing data from 10,866 women in the WHI, a multi-study program that began in 1992 and involved 161,808 women in both observational and clinical trial cohorts.
In 2002, the first big data release from the WHI suggested that hormone replacement therapy (HRT) increased breast cancer risk, leading to widespread reduction in HRT use.
More recent reports continue to shape our understanding of these risks, suggesting differences across cancer types. For breast cancer, the WHI data suggested that HRT-associated risk was largely driven by formulations involving progesterone and estrogen, whereas estrogen-only formulations, now more common, are generally considered to present an acceptable risk profile for suitable patients.
The new study accounted for this potential HRT-associated risk, including by adjusting for patients who received HRT, type of HRT received, and duration of HRT received. According to Desai, this approach is commonly used when analyzing data from the WHI, nullifying concerns about the potentially deleterious effects of the hormones used in the study.
“Our question was not ‘does HRT cause cancer?’ ” Dr. Desai said in an interview. “But HRT can be linked to breast cancer risk and has a potential to be a confounder, and hence the above methodology.
“So I can say that the confounding/effect modification that HRT would have contributed to in the relationship between exposure (CH and mCA) and outcome (cancer) is well adjusted for as described above. This is standard in WHI analyses,” she continued.
“Every Women’s Health Initiative analysis that comes out — not just for our study — uses a standard method ... where you account for hormonal therapy,” Dr. Desai added, again noting that many other potential risk factors were considered, enabling a “detailed, robust” analysis.
Dr. Takahashi and Ms. Shah agreed. “A notable strength of this study is its adjustment for many confounding factors,” they wrote. “The cohort’s well‐annotated data on other known cancer risk factors allowed for a robust assessment of CH’s independent risk.”
How Do Findings Compare With Those of the UK Biobank Study?
CHIP was associated with a 30% increased risk for breast cancer (hazard ratio [HR], 1.30; 95% CI, 1.03-1.64; P = .02), strengthening the borderline association reported by the UK Biobank study.
In contrast with the UK Biobank study, CHIP was not associated with lung cancer risk, although this may have been caused by fewer cases of lung cancer and a lack of male patients, Dr. Desai suggested.
“The discrepancy between the studies lies in the risk of lung cancer, although the point estimate in the current study suggested a positive association,” wrote Dr. Takahashi and Ms. Shah.
As in the UK Biobank study, CHIP was not associated with increased risk of developing colorectal cancer.
Mortality analysis, however, which was not conducted in the UK Biobank study, offered a new insight: Patients with existing colorectal cancer and CHIP had a significantly higher mortality risk than those without CHIP. Before stage adjustment, risk for mortality among those with colorectal cancer and CHIP was fourfold higher than those without CHIP (HR, 3.99; 95% CI, 2.41-6.62; P < .001). After stage adjustment, CHIP was still associated with a twofold higher mortality risk (HR, 2.50; 95% CI, 1.32-4.72; P = .004).
The investigators’ first mCA analyses, which employed a cell fraction cutoff greater than 3%, were unfruitful. But raising the cell fraction threshold to 5% in an exploratory analysis showed that autosomal mCA was associated with a 39% increased risk for breast cancer (HR, 1.39; 95% CI, 1.06-1.83; P = .01). No such associations were found between mCA and colorectal or lung cancer, regardless of cell fraction threshold.
The original 3% cell fraction threshold was selected on the basis of previous studies reporting a link between mCA and hematologic malignancies at this cutoff, Dr. Desai said.
She and her colleagues said a higher 5% cutoff might be needed, as they suspected that the link between mCA and solid tumors may not be causal, requiring a higher mutation rate.
Why Do Results Differ Between These Types of Studies?
Dr. Takahashi and Ms. Shah suggested that one possible limitation of the new study, and an obstacle to comparing results with the UK Biobank study and others like it, goes beyond population heterogeneity; incongruent findings could also be explained by differences in whole genome sequencing (WGS) technique.
“Although WGS allows sensitive detection of mCA through broad genomic coverage, it is less effective at detecting CHIP with low variant allele frequency (VAF) due to its relatively shallow depth (30x),” they wrote. “Consequently, the prevalence of mCA (18.8%) was much higher than that of CHIP (8.3%) in this cohort, contrasting with other studies using deeper sequencing.” As a result, the present study may have underestimated CHIP prevalence because of shallow sequencing depth.
“This inconsistency is a common challenge in CH population studies due to the lack of standardized methodologies and the frequent reliance on preexisting data not originally intended for CH detection,” Dr. Takahashi and Ms. Shah said.
Even so, despite the “heavily context-dependent” nature of these reported risks, the body of evidence to date now offers a convincing biological rationale linking CH with cancer development and outcomes, they added.
How Do the CHIP- and mCA-associated Risks Differ Between Solid Tumors and Blood Cancers?
“[These solid tumor risks are] not causal in the way CHIP mutations are causal for blood cancers,” Dr. Desai said. “Here we are talking about solid tumor risk, and it’s kind of scattered. It’s not just breast cancer ... there’s also increased colon cancer mortality. So I feel these mutations are doing something different ... they are sort of an added factor.”
Specific mechanisms remain unclear, Dr. Desai said, although she speculated about possible impacts on the inflammatory state or alterations to the tumor microenvironment.
“These are blood cells, right?” Dr. Desai asked. “They’re everywhere, and they’re changing something inherently in these tumors.”
Future research and therapeutic development
Siddhartha Jaiswal, MD, PhD, assistant professor in the Department of Pathology at Stanford University in California, whose lab focuses on clonal hematopoiesis, said the causality question is central to future research.
“The key question is, are these mutations acting because they alter the function of blood cells in some way to promote cancer risk, or is it reflective of some sort of shared etiology that’s not causal?” Dr. Jaiswal said in an interview.
Available data support both possibilities.
On one side, “reasonable evidence” supports the noncausal view, Dr. Jaiswal noted, because telomere length is one of the most common genetic risk factors for clonal hematopoiesis and also for solid tumors, suggesting a shared genetic factor. On the other hand, CHIP and mCA could be directly protumorigenic via conferred disturbances of immune cell function.
When asked if both causal and noncausal factors could be at play, Dr. Jaiswal said, “yeah, absolutely.”
The presence of a causal association could be promising from a therapeutic standpoint.
“If it turns out that this association is driven by a direct causal effect of the mutations, perhaps related to immune cell function or dysfunction, then targeting that dysfunction could be a therapeutic path to improve outcomes in people, and there’s a lot of interest in this,” Dr. Jaiswal said. He went on to explain how a trial exploring this approach via interleukin-8 inhibition in lung cancer fell short.
Yet earlier intervention may still hold promise, according to experts.
“[This study] provokes the hypothesis that CH‐targeted interventions could potentially reduce cancer risk in the future,” Dr. Takahashi and Ms. Shah said in their editorial.
The WHI program is funded by the National Heart, Lung, and Blood Institute; National Institutes of Health; and the Department of Health & Human Services. The investigators disclosed relationships with Eli Lilly, AbbVie, Celgene, and others. Dr. Jaiswal reported stock equity in a company that has an interest in clonal hematopoiesis.
A version of this article first appeared on Medscape.com.
Clonal hematopoiesis of indeterminate potential (CHIP) and mosaic chromosomal alterations (mCAs) are associated with an increased risk for breast cancer, and CHIP is associated with increased mortality in patients with colon cancer, according to the authors of new research.
These findings, drawn from almost 11,000 patients in the Women’s Health Initiative (WHI) study, add further evidence that CHIP and mCA drive solid tumor risk, alongside known associations with hematologic malignancies, reported lead author Pinkal Desai, MD, associate professor of medicine and clinical director of molecular aging at Englander Institute for Precision Medicine, Weill Cornell Medical College, New York City, and colleagues.
How This Study Differs From Others of Breast Cancer Risk Factors
“The independent effect of CHIP and mCA on risk and mortality from solid tumors has not been elucidated due to lack of detailed data on mortality outcomes and risk factors,” the investigators wrote in Cancer, although some previous studies have suggested a link.
In particular, the investigators highlighted a 2022 UK Biobank study, which reported an association between CHIP and lung cancer and a borderline association with breast cancer that did not quite reach statistical significance.
But the UK Biobank study was confined to a UK population, Dr. Desai noted in an interview, and the data were less detailed than those in the present investigation.
“In terms of risk, the part that was lacking in previous studies was a comprehensive assessment of risk factors that increase risk for all these cancers,” Dr. Desai said. “For example, for breast cancer, we had very detailed data on [participants’] Gail risk score, which is known to impact breast cancer risk. We also had mammogram data and colonoscopy data.”
In an accompanying editorial, Koichi Takahashi, MD, PhD , and Nehali Shah, BS, of The University of Texas MD Anderson Cancer Center, Houston, Texas, pointed out the same UK Biobank findings, then noted that CHIP has also been linked with worse overall survival in unselected cancer patients. Still, they wrote, “the impact of CH on cancer risk and mortality remains controversial due to conflicting data and context‐dependent effects,” necessitating studies like this one by Dr. Desai and colleagues.
How Was the Relationship Between CHIP, MCA, and Solid Tumor Risk Assessed?
To explore possible associations between CHIP, mCA, and solid tumors, the investigators analyzed whole genome sequencing data from 10,866 women in the WHI, a multi-study program that began in 1992 and involved 161,808 women in both observational and clinical trial cohorts.
In 2002, the first big data release from the WHI suggested that hormone replacement therapy (HRT) increased breast cancer risk, leading to widespread reduction in HRT use.
More recent reports continue to shape our understanding of these risks, suggesting differences across cancer types. For breast cancer, the WHI data suggested that HRT-associated risk was largely driven by formulations involving progesterone and estrogen, whereas estrogen-only formulations, now more common, are generally considered to present an acceptable risk profile for suitable patients.
The new study accounted for this potential HRT-associated risk, including by adjusting for patients who received HRT, type of HRT received, and duration of HRT received. According to Desai, this approach is commonly used when analyzing data from the WHI, nullifying concerns about the potentially deleterious effects of the hormones used in the study.
“Our question was not ‘does HRT cause cancer?’ ” Dr. Desai said in an interview. “But HRT can be linked to breast cancer risk and has a potential to be a confounder, and hence the above methodology.
“So I can say that the confounding/effect modification that HRT would have contributed to in the relationship between exposure (CH and mCA) and outcome (cancer) is well adjusted for as described above. This is standard in WHI analyses,” she continued.
“Every Women’s Health Initiative analysis that comes out — not just for our study — uses a standard method ... where you account for hormonal therapy,” Dr. Desai added, again noting that many other potential risk factors were considered, enabling a “detailed, robust” analysis.
Dr. Takahashi and Ms. Shah agreed. “A notable strength of this study is its adjustment for many confounding factors,” they wrote. “The cohort’s well‐annotated data on other known cancer risk factors allowed for a robust assessment of CH’s independent risk.”
How Do Findings Compare With Those of the UK Biobank Study?
CHIP was associated with a 30% increased risk for breast cancer (hazard ratio [HR], 1.30; 95% CI, 1.03-1.64; P = .02), strengthening the borderline association reported by the UK Biobank study.
In contrast with the UK Biobank study, CHIP was not associated with lung cancer risk, although this may have been caused by fewer cases of lung cancer and a lack of male patients, Dr. Desai suggested.
“The discrepancy between the studies lies in the risk of lung cancer, although the point estimate in the current study suggested a positive association,” wrote Dr. Takahashi and Ms. Shah.
As in the UK Biobank study, CHIP was not associated with increased risk of developing colorectal cancer.
Mortality analysis, however, which was not conducted in the UK Biobank study, offered a new insight: Patients with existing colorectal cancer and CHIP had a significantly higher mortality risk than those without CHIP. Before stage adjustment, risk for mortality among those with colorectal cancer and CHIP was fourfold higher than those without CHIP (HR, 3.99; 95% CI, 2.41-6.62; P < .001). After stage adjustment, CHIP was still associated with a twofold higher mortality risk (HR, 2.50; 95% CI, 1.32-4.72; P = .004).
The investigators’ first mCA analyses, which employed a cell fraction cutoff greater than 3%, were unfruitful. But raising the cell fraction threshold to 5% in an exploratory analysis showed that autosomal mCA was associated with a 39% increased risk for breast cancer (HR, 1.39; 95% CI, 1.06-1.83; P = .01). No such associations were found between mCA and colorectal or lung cancer, regardless of cell fraction threshold.
The original 3% cell fraction threshold was selected on the basis of previous studies reporting a link between mCA and hematologic malignancies at this cutoff, Dr. Desai said.
She and her colleagues said a higher 5% cutoff might be needed, as they suspected that the link between mCA and solid tumors may not be causal, requiring a higher mutation rate.
Why Do Results Differ Between These Types of Studies?
Dr. Takahashi and Ms. Shah suggested that one possible limitation of the new study, and an obstacle to comparing results with the UK Biobank study and others like it, goes beyond population heterogeneity; incongruent findings could also be explained by differences in whole genome sequencing (WGS) technique.
“Although WGS allows sensitive detection of mCA through broad genomic coverage, it is less effective at detecting CHIP with low variant allele frequency (VAF) due to its relatively shallow depth (30x),” they wrote. “Consequently, the prevalence of mCA (18.8%) was much higher than that of CHIP (8.3%) in this cohort, contrasting with other studies using deeper sequencing.” As a result, the present study may have underestimated CHIP prevalence because of shallow sequencing depth.
“This inconsistency is a common challenge in CH population studies due to the lack of standardized methodologies and the frequent reliance on preexisting data not originally intended for CH detection,” Dr. Takahashi and Ms. Shah said.
Even so, despite the “heavily context-dependent” nature of these reported risks, the body of evidence to date now offers a convincing biological rationale linking CH with cancer development and outcomes, they added.
How Do the CHIP- and mCA-associated Risks Differ Between Solid Tumors and Blood Cancers?
“[These solid tumor risks are] not causal in the way CHIP mutations are causal for blood cancers,” Dr. Desai said. “Here we are talking about solid tumor risk, and it’s kind of scattered. It’s not just breast cancer ... there’s also increased colon cancer mortality. So I feel these mutations are doing something different ... they are sort of an added factor.”
Specific mechanisms remain unclear, Dr. Desai said, although she speculated about possible impacts on the inflammatory state or alterations to the tumor microenvironment.
“These are blood cells, right?” Dr. Desai asked. “They’re everywhere, and they’re changing something inherently in these tumors.”
Future research and therapeutic development
Siddhartha Jaiswal, MD, PhD, assistant professor in the Department of Pathology at Stanford University in California, whose lab focuses on clonal hematopoiesis, said the causality question is central to future research.
“The key question is, are these mutations acting because they alter the function of blood cells in some way to promote cancer risk, or is it reflective of some sort of shared etiology that’s not causal?” Dr. Jaiswal said in an interview.
Available data support both possibilities.
On one side, “reasonable evidence” supports the noncausal view, Dr. Jaiswal noted, because telomere length is one of the most common genetic risk factors for clonal hematopoiesis and also for solid tumors, suggesting a shared genetic factor. On the other hand, CHIP and mCA could be directly protumorigenic via conferred disturbances of immune cell function.
When asked if both causal and noncausal factors could be at play, Dr. Jaiswal said, “yeah, absolutely.”
The presence of a causal association could be promising from a therapeutic standpoint.
“If it turns out that this association is driven by a direct causal effect of the mutations, perhaps related to immune cell function or dysfunction, then targeting that dysfunction could be a therapeutic path to improve outcomes in people, and there’s a lot of interest in this,” Dr. Jaiswal said. He went on to explain how a trial exploring this approach via interleukin-8 inhibition in lung cancer fell short.
Yet earlier intervention may still hold promise, according to experts.
“[This study] provokes the hypothesis that CH‐targeted interventions could potentially reduce cancer risk in the future,” Dr. Takahashi and Ms. Shah said in their editorial.
The WHI program is funded by the National Heart, Lung, and Blood Institute; National Institutes of Health; and the Department of Health & Human Services. The investigators disclosed relationships with Eli Lilly, AbbVie, Celgene, and others. Dr. Jaiswal reported stock equity in a company that has an interest in clonal hematopoiesis.
A version of this article first appeared on Medscape.com.
Clonal hematopoiesis of indeterminate potential (CHIP) and mosaic chromosomal alterations (mCAs) are associated with an increased risk for breast cancer, and CHIP is associated with increased mortality in patients with colon cancer, according to the authors of new research.
These findings, drawn from almost 11,000 patients in the Women’s Health Initiative (WHI) study, add further evidence that CHIP and mCA drive solid tumor risk, alongside known associations with hematologic malignancies, reported lead author Pinkal Desai, MD, associate professor of medicine and clinical director of molecular aging at Englander Institute for Precision Medicine, Weill Cornell Medical College, New York City, and colleagues.
How This Study Differs From Others of Breast Cancer Risk Factors
“The independent effect of CHIP and mCA on risk and mortality from solid tumors has not been elucidated due to lack of detailed data on mortality outcomes and risk factors,” the investigators wrote in Cancer, although some previous studies have suggested a link.
In particular, the investigators highlighted a 2022 UK Biobank study, which reported an association between CHIP and lung cancer and a borderline association with breast cancer that did not quite reach statistical significance.
But the UK Biobank study was confined to a UK population, Dr. Desai noted in an interview, and the data were less detailed than those in the present investigation.
“In terms of risk, the part that was lacking in previous studies was a comprehensive assessment of risk factors that increase risk for all these cancers,” Dr. Desai said. “For example, for breast cancer, we had very detailed data on [participants’] Gail risk score, which is known to impact breast cancer risk. We also had mammogram data and colonoscopy data.”
In an accompanying editorial, Koichi Takahashi, MD, PhD , and Nehali Shah, BS, of The University of Texas MD Anderson Cancer Center, Houston, Texas, pointed out the same UK Biobank findings, then noted that CHIP has also been linked with worse overall survival in unselected cancer patients. Still, they wrote, “the impact of CH on cancer risk and mortality remains controversial due to conflicting data and context‐dependent effects,” necessitating studies like this one by Dr. Desai and colleagues.
How Was the Relationship Between CHIP, MCA, and Solid Tumor Risk Assessed?
To explore possible associations between CHIP, mCA, and solid tumors, the investigators analyzed whole genome sequencing data from 10,866 women in the WHI, a multi-study program that began in 1992 and involved 161,808 women in both observational and clinical trial cohorts.
In 2002, the first big data release from the WHI suggested that hormone replacement therapy (HRT) increased breast cancer risk, leading to widespread reduction in HRT use.
More recent reports continue to shape our understanding of these risks, suggesting differences across cancer types. For breast cancer, the WHI data suggested that HRT-associated risk was largely driven by formulations involving progesterone and estrogen, whereas estrogen-only formulations, now more common, are generally considered to present an acceptable risk profile for suitable patients.
The new study accounted for this potential HRT-associated risk, including by adjusting for patients who received HRT, type of HRT received, and duration of HRT received. According to Desai, this approach is commonly used when analyzing data from the WHI, nullifying concerns about the potentially deleterious effects of the hormones used in the study.
“Our question was not ‘does HRT cause cancer?’ ” Dr. Desai said in an interview. “But HRT can be linked to breast cancer risk and has a potential to be a confounder, and hence the above methodology.
“So I can say that the confounding/effect modification that HRT would have contributed to in the relationship between exposure (CH and mCA) and outcome (cancer) is well adjusted for as described above. This is standard in WHI analyses,” she continued.
“Every Women’s Health Initiative analysis that comes out — not just for our study — uses a standard method ... where you account for hormonal therapy,” Dr. Desai added, again noting that many other potential risk factors were considered, enabling a “detailed, robust” analysis.
Dr. Takahashi and Ms. Shah agreed. “A notable strength of this study is its adjustment for many confounding factors,” they wrote. “The cohort’s well‐annotated data on other known cancer risk factors allowed for a robust assessment of CH’s independent risk.”
How Do Findings Compare With Those of the UK Biobank Study?
CHIP was associated with a 30% increased risk for breast cancer (hazard ratio [HR], 1.30; 95% CI, 1.03-1.64; P = .02), strengthening the borderline association reported by the UK Biobank study.
In contrast with the UK Biobank study, CHIP was not associated with lung cancer risk, although this may have been caused by fewer cases of lung cancer and a lack of male patients, Dr. Desai suggested.
“The discrepancy between the studies lies in the risk of lung cancer, although the point estimate in the current study suggested a positive association,” wrote Dr. Takahashi and Ms. Shah.
As in the UK Biobank study, CHIP was not associated with increased risk of developing colorectal cancer.
Mortality analysis, however, which was not conducted in the UK Biobank study, offered a new insight: Patients with existing colorectal cancer and CHIP had a significantly higher mortality risk than those without CHIP. Before stage adjustment, risk for mortality among those with colorectal cancer and CHIP was fourfold higher than those without CHIP (HR, 3.99; 95% CI, 2.41-6.62; P < .001). After stage adjustment, CHIP was still associated with a twofold higher mortality risk (HR, 2.50; 95% CI, 1.32-4.72; P = .004).
The investigators’ first mCA analyses, which employed a cell fraction cutoff greater than 3%, were unfruitful. But raising the cell fraction threshold to 5% in an exploratory analysis showed that autosomal mCA was associated with a 39% increased risk for breast cancer (HR, 1.39; 95% CI, 1.06-1.83; P = .01). No such associations were found between mCA and colorectal or lung cancer, regardless of cell fraction threshold.
The original 3% cell fraction threshold was selected on the basis of previous studies reporting a link between mCA and hematologic malignancies at this cutoff, Dr. Desai said.
She and her colleagues said a higher 5% cutoff might be needed, as they suspected that the link between mCA and solid tumors may not be causal, requiring a higher mutation rate.
Why Do Results Differ Between These Types of Studies?
Dr. Takahashi and Ms. Shah suggested that one possible limitation of the new study, and an obstacle to comparing results with the UK Biobank study and others like it, goes beyond population heterogeneity; incongruent findings could also be explained by differences in whole genome sequencing (WGS) technique.
“Although WGS allows sensitive detection of mCA through broad genomic coverage, it is less effective at detecting CHIP with low variant allele frequency (VAF) due to its relatively shallow depth (30x),” they wrote. “Consequently, the prevalence of mCA (18.8%) was much higher than that of CHIP (8.3%) in this cohort, contrasting with other studies using deeper sequencing.” As a result, the present study may have underestimated CHIP prevalence because of shallow sequencing depth.
“This inconsistency is a common challenge in CH population studies due to the lack of standardized methodologies and the frequent reliance on preexisting data not originally intended for CH detection,” Dr. Takahashi and Ms. Shah said.
Even so, despite the “heavily context-dependent” nature of these reported risks, the body of evidence to date now offers a convincing biological rationale linking CH with cancer development and outcomes, they added.
How Do the CHIP- and mCA-associated Risks Differ Between Solid Tumors and Blood Cancers?
“[These solid tumor risks are] not causal in the way CHIP mutations are causal for blood cancers,” Dr. Desai said. “Here we are talking about solid tumor risk, and it’s kind of scattered. It’s not just breast cancer ... there’s also increased colon cancer mortality. So I feel these mutations are doing something different ... they are sort of an added factor.”
Specific mechanisms remain unclear, Dr. Desai said, although she speculated about possible impacts on the inflammatory state or alterations to the tumor microenvironment.
“These are blood cells, right?” Dr. Desai asked. “They’re everywhere, and they’re changing something inherently in these tumors.”
Future research and therapeutic development
Siddhartha Jaiswal, MD, PhD, assistant professor in the Department of Pathology at Stanford University in California, whose lab focuses on clonal hematopoiesis, said the causality question is central to future research.
“The key question is, are these mutations acting because they alter the function of blood cells in some way to promote cancer risk, or is it reflective of some sort of shared etiology that’s not causal?” Dr. Jaiswal said in an interview.
Available data support both possibilities.
On one side, “reasonable evidence” supports the noncausal view, Dr. Jaiswal noted, because telomere length is one of the most common genetic risk factors for clonal hematopoiesis and also for solid tumors, suggesting a shared genetic factor. On the other hand, CHIP and mCA could be directly protumorigenic via conferred disturbances of immune cell function.
When asked if both causal and noncausal factors could be at play, Dr. Jaiswal said, “yeah, absolutely.”
The presence of a causal association could be promising from a therapeutic standpoint.
“If it turns out that this association is driven by a direct causal effect of the mutations, perhaps related to immune cell function or dysfunction, then targeting that dysfunction could be a therapeutic path to improve outcomes in people, and there’s a lot of interest in this,” Dr. Jaiswal said. He went on to explain how a trial exploring this approach via interleukin-8 inhibition in lung cancer fell short.
Yet earlier intervention may still hold promise, according to experts.
“[This study] provokes the hypothesis that CH‐targeted interventions could potentially reduce cancer risk in the future,” Dr. Takahashi and Ms. Shah said in their editorial.
The WHI program is funded by the National Heart, Lung, and Blood Institute; National Institutes of Health; and the Department of Health & Human Services. The investigators disclosed relationships with Eli Lilly, AbbVie, Celgene, and others. Dr. Jaiswal reported stock equity in a company that has an interest in clonal hematopoiesis.
A version of this article first appeared on Medscape.com.
FROM CANCER
Prediction, Management of Sjögren-Related Lymphomas Gain Ground With New Studies
, particularly mucosa-associated lymphoid tissue (MALT) lymphoma, based on recent findings that confirmed a key early biomarker and found that a systemic treatment strategy reduced Sjögren disease activity and the risk for lymphoma relapse.
Two European studies published in The Lancet Rheumatology — one a case-control study reporting that rheumatoid factor (RF) was an early and strong predictor of Sjögren disease–related MALT lymphoma and the other a retrospective study that found a combination of chemotherapy and anti-CD20 therapy with rituximab as a first-line treatment for lymphoma was more effective than localized treatment or watch-and-wait approach in minimizing autoimmune activity and treating the lymphoma — potentially shed new light on strategies to manage Sjögren disease–related lymphoma.
A commentary accompanying the studies noted that 5%-10% of patients with Sjögren disease will develop non-Hodgkin B-cell lymphoma, with marginal lymphoma the most common type of low-grade lymphoma. The commentary, led by Suzanne Arends, MD, a rheumatologist at the University of Groningen in Groningen, the Netherlands, found the studies “clinically relevant” but stated that the lack of consistent definitions between the two studies along with their retrospective nature prevent any “definitive conclusions.”
High Lymphoma Risk in Sjögren Disease
“It is the autoimmune disease in which the risk of lymphoma is the highest, a 10- to 20-fold increase of the risk of lymphoma in this disease,” Xavier Mariette, MD, PhD, co-senior author of the retrospective treatment study, said of Sjögren disease.
These lymphomas are predominantly the marginal zone type, specifically MALT occurring in the salivary glands, the same site of the autoimmune disease, said Dr. Mariette, who is the head of Rheumatology and professor at Université Paris-Saclay and Hôpital Bicêtre. Autoimmune B cells become lymphomatous. “So there is a continuity between autoimmunity and lymphoma genesis,” Dr. Mariette told this news organization. Typically, hematologists do not treat the lymphoma if it doesn’t migrate beyond the salivary glands, he said.
Dr. Mariette said his group’s findings make the case for a more aggressive treatment.
“When patients got the systemic treatment, there was a decreased risk of flare of the autoimmune disease of Sjögren’s, but there was no effect on the lymphoma formation,” Dr. Mariette said. “And when these patients have combined therapy, immunotherapy plus chemotherapy, compared to single immunotherapy, they did have improvement of the lymphoma progression-free survival.”
Their multicenter study enrolled 106 patients with Sjögren disease who developed lymphoma, 64% (n = 68) of whom had MALT, 13% (n = 14) of whom had other marginal zone subtypes, and the same percentage with diffuse large B-cell lymphoma. With a median follow-up of 7 years, 32 patients with marginal zone subtypes who had combination chemotherapy and anti-CD20 therapy had a 64% greater chance of lymphoma progression-free survival than 18 of their counterparts who received anti-CD20 monotherapy. Overall, outcomes for Sjögren disease systemic activity or survival were no different between the combination therapy and monotherapy arms.
Patients who had a systemic approach had a 57% reduced risk for new Sjögren disease activity compared with those who had first-line surgery or radiation (16%, n = 13) or underwent watch and wait (23%, n = 19).
The study strengthens the argument for a systemic treatment approach over localized therapy “because patients with Sjögren’s have a higher degree of development of MALT lymphoma of the salivary glands,” Juan Pablo Alderuccio, MD, a hematologist and lymphoma clinical site disease group leader at the Sylvester Comprehensive Cancer Center at the University of Miami Health Systems, Miami, Florida, told this news organization.
“We already knew that the combination of chemotherapy with rituximab usually achieves a better outcome,” Dr. Alderuccio added, citing a 2017 clinical trial that found combined chemotherapy with chlorambucil plus rituximab improved progression-free survival compared with either therapy alone. The latest retrospective study from France reinforces that, he said.
“The study also shows it’s very important to consider treatment-related specificities — to select the most appropriate treatment for these patients,” Dr. Alderuccio added.
RF Biomarker
The case-control study by researchers in Italy and Greece included 80 patients with Sjögren-related MALT lymphoma matched to controls with Sjögren disease who did not have lymphoma.
“We showed that rheumatoid factor positivity at the time of Sjögren’s disease diagnosis serves as the most reliable and temporally distant independent predictor of MALT lymphoma development,” lead author Andreas Goules, MD, a pathophysiologist at the National and Kapodistrian University of Athens, Athens, Greece, told this news organization.
He added that the study found that specific biomarkers in addition to RF positivity were signs of a high risk for MALT lymphoma and a more advanced stage of Sjögren disease–related lymphomagenesis. They included high systemic disease activity, measured as a European Alliance of Associations for Rheumatology Sjögren’s Syndrome Disease Activity Index ≥ 5, and specific B-cell manifestations, such as cryoglobulinemia, salivary gland enlargement, hypocomplementemia, and palpable purpura.
“Ideally, all patients should be evaluated at the time of diagnosis for the presence of RF and undergo a minor salivary gland biopsy to exclude an underlying ongoing lymphoproliferative process,” Dr. Goules said.
RF-positive patients with Sjögren disease require a closer follow-up to identify an advanced stage of lymphoma development, he added.
“It is well known that Sjögren’s disease is characterized by an increased mortality rate, compared to the general population, mainly due to the related lymphomas,” Dr. Goules added. “Thus, the early diagnosis of MALT lymphoma, which is associated with a better prognosis, is expected to improve the overall clinical outcome of Sjögren’s disease patients.”
Rheumatologists and hematologists should employ a similar strategy for Sjögren disease–related large B-cell lymphomas, he said.
“The pathogenetic mechanisms of these two lymphoma types are vastly different, so it wouldn’t be surprising if an entirely different risk factor emerges,” Dr. Goules said. “However, given the rarity of diffuse large B-cell lymphomas, much larger multinational cohorts will be necessary to obtain clinically and pathogenetically meaningful results.”
Alan Baer, MD, a rheumatologist and founder of the Sjögren’s Disease Clinic at Johns Hopkins University in Baltimore, noted Dr. Goules and colleagues are not the first to identify RF, along with a host of other clinical and laboratory findings, as a risk factor for lymphoma in patients with Sjögren disease. “The current study validates rheumatoid factor as an independent risk factor present at a time that is temporally distant from the time of lymphoma diagnosis,” he said.
However, he cautioned that RF alone isn’t highly predictive of Sjögren-related lymphoma. Up to 60% of patients with Sjögren disease are positive for RF at the time of the diagnosis, Dr. Baer said.
“Thus, the finding of rheumatoid factor alone does not necessarily mandate closer surveillance of this group of patients, with the potential for more frequent clinical exams, imaging, and laboratory testing,” he said. “Such an approach has the risk of subjecting patients to unnecessary testing, including invasive procedures.”
More detailed findings, such as if a certain RF level was more predictive of lymphoma or whether other features in combination with RF heightened the risk, would be helpful, he said.
What Future Studies Should Look At
The studies call for further research into biomarkers for Sjögren disease–related lymphoma and treatment of the disease, both Dr. Mariette and Dr. Goules said.
Dr. Goules said a multicenter prospective study is needed to measure RF positivity and RF titers over time and determine whether higher levels mean an increased risk for lymphoma development or a shorter time interval until lymphoma onset. “Such a study requires a large number of RF-positive Sjögren’s disease patients who would be followed up for a long period of time,” Dr. Goules said.
To further evaluate treatment approaches for Sjögren disease–related lymphoma, Dr. Mariette said, a prospective study should compare the watch-and-wait approach with combination chemotherapy and anti-CD20 therapy. “It would be difficult to run because the primary endpoint would be lymphoma progression–free survival, and the secondary would be Sjögren’s relapse and mortality, but it would take a lot of time,” he said.
He added, “It’s a reason why this retrospective study is important. Maybe if we had another retrospective study reaching the same conclusion, I think it would be very, very strong evidence.”
Funding for the case-control study came from the European Commission–Horizon 2020 program. The retrospective treatment study had no outside funding. Dr. Mariette disclosed financial relationships with AstraZeneca, Bristol-Myers Squibb, Galapagos, GlaxoSmithKline, Novartis, and Pfizer. Dr. Alderuccio, Dr. Goules, and Dr. Baer had no relevant relationships to disclose.
A version of this article first appeared on Medscape.com.
, particularly mucosa-associated lymphoid tissue (MALT) lymphoma, based on recent findings that confirmed a key early biomarker and found that a systemic treatment strategy reduced Sjögren disease activity and the risk for lymphoma relapse.
Two European studies published in The Lancet Rheumatology — one a case-control study reporting that rheumatoid factor (RF) was an early and strong predictor of Sjögren disease–related MALT lymphoma and the other a retrospective study that found a combination of chemotherapy and anti-CD20 therapy with rituximab as a first-line treatment for lymphoma was more effective than localized treatment or watch-and-wait approach in minimizing autoimmune activity and treating the lymphoma — potentially shed new light on strategies to manage Sjögren disease–related lymphoma.
A commentary accompanying the studies noted that 5%-10% of patients with Sjögren disease will develop non-Hodgkin B-cell lymphoma, with marginal lymphoma the most common type of low-grade lymphoma. The commentary, led by Suzanne Arends, MD, a rheumatologist at the University of Groningen in Groningen, the Netherlands, found the studies “clinically relevant” but stated that the lack of consistent definitions between the two studies along with their retrospective nature prevent any “definitive conclusions.”
High Lymphoma Risk in Sjögren Disease
“It is the autoimmune disease in which the risk of lymphoma is the highest, a 10- to 20-fold increase of the risk of lymphoma in this disease,” Xavier Mariette, MD, PhD, co-senior author of the retrospective treatment study, said of Sjögren disease.
These lymphomas are predominantly the marginal zone type, specifically MALT occurring in the salivary glands, the same site of the autoimmune disease, said Dr. Mariette, who is the head of Rheumatology and professor at Université Paris-Saclay and Hôpital Bicêtre. Autoimmune B cells become lymphomatous. “So there is a continuity between autoimmunity and lymphoma genesis,” Dr. Mariette told this news organization. Typically, hematologists do not treat the lymphoma if it doesn’t migrate beyond the salivary glands, he said.
Dr. Mariette said his group’s findings make the case for a more aggressive treatment.
“When patients got the systemic treatment, there was a decreased risk of flare of the autoimmune disease of Sjögren’s, but there was no effect on the lymphoma formation,” Dr. Mariette said. “And when these patients have combined therapy, immunotherapy plus chemotherapy, compared to single immunotherapy, they did have improvement of the lymphoma progression-free survival.”
Their multicenter study enrolled 106 patients with Sjögren disease who developed lymphoma, 64% (n = 68) of whom had MALT, 13% (n = 14) of whom had other marginal zone subtypes, and the same percentage with diffuse large B-cell lymphoma. With a median follow-up of 7 years, 32 patients with marginal zone subtypes who had combination chemotherapy and anti-CD20 therapy had a 64% greater chance of lymphoma progression-free survival than 18 of their counterparts who received anti-CD20 monotherapy. Overall, outcomes for Sjögren disease systemic activity or survival were no different between the combination therapy and monotherapy arms.
Patients who had a systemic approach had a 57% reduced risk for new Sjögren disease activity compared with those who had first-line surgery or radiation (16%, n = 13) or underwent watch and wait (23%, n = 19).
The study strengthens the argument for a systemic treatment approach over localized therapy “because patients with Sjögren’s have a higher degree of development of MALT lymphoma of the salivary glands,” Juan Pablo Alderuccio, MD, a hematologist and lymphoma clinical site disease group leader at the Sylvester Comprehensive Cancer Center at the University of Miami Health Systems, Miami, Florida, told this news organization.
“We already knew that the combination of chemotherapy with rituximab usually achieves a better outcome,” Dr. Alderuccio added, citing a 2017 clinical trial that found combined chemotherapy with chlorambucil plus rituximab improved progression-free survival compared with either therapy alone. The latest retrospective study from France reinforces that, he said.
“The study also shows it’s very important to consider treatment-related specificities — to select the most appropriate treatment for these patients,” Dr. Alderuccio added.
RF Biomarker
The case-control study by researchers in Italy and Greece included 80 patients with Sjögren-related MALT lymphoma matched to controls with Sjögren disease who did not have lymphoma.
“We showed that rheumatoid factor positivity at the time of Sjögren’s disease diagnosis serves as the most reliable and temporally distant independent predictor of MALT lymphoma development,” lead author Andreas Goules, MD, a pathophysiologist at the National and Kapodistrian University of Athens, Athens, Greece, told this news organization.
He added that the study found that specific biomarkers in addition to RF positivity were signs of a high risk for MALT lymphoma and a more advanced stage of Sjögren disease–related lymphomagenesis. They included high systemic disease activity, measured as a European Alliance of Associations for Rheumatology Sjögren’s Syndrome Disease Activity Index ≥ 5, and specific B-cell manifestations, such as cryoglobulinemia, salivary gland enlargement, hypocomplementemia, and palpable purpura.
“Ideally, all patients should be evaluated at the time of diagnosis for the presence of RF and undergo a minor salivary gland biopsy to exclude an underlying ongoing lymphoproliferative process,” Dr. Goules said.
RF-positive patients with Sjögren disease require a closer follow-up to identify an advanced stage of lymphoma development, he added.
“It is well known that Sjögren’s disease is characterized by an increased mortality rate, compared to the general population, mainly due to the related lymphomas,” Dr. Goules added. “Thus, the early diagnosis of MALT lymphoma, which is associated with a better prognosis, is expected to improve the overall clinical outcome of Sjögren’s disease patients.”
Rheumatologists and hematologists should employ a similar strategy for Sjögren disease–related large B-cell lymphomas, he said.
“The pathogenetic mechanisms of these two lymphoma types are vastly different, so it wouldn’t be surprising if an entirely different risk factor emerges,” Dr. Goules said. “However, given the rarity of diffuse large B-cell lymphomas, much larger multinational cohorts will be necessary to obtain clinically and pathogenetically meaningful results.”
Alan Baer, MD, a rheumatologist and founder of the Sjögren’s Disease Clinic at Johns Hopkins University in Baltimore, noted Dr. Goules and colleagues are not the first to identify RF, along with a host of other clinical and laboratory findings, as a risk factor for lymphoma in patients with Sjögren disease. “The current study validates rheumatoid factor as an independent risk factor present at a time that is temporally distant from the time of lymphoma diagnosis,” he said.
However, he cautioned that RF alone isn’t highly predictive of Sjögren-related lymphoma. Up to 60% of patients with Sjögren disease are positive for RF at the time of the diagnosis, Dr. Baer said.
“Thus, the finding of rheumatoid factor alone does not necessarily mandate closer surveillance of this group of patients, with the potential for more frequent clinical exams, imaging, and laboratory testing,” he said. “Such an approach has the risk of subjecting patients to unnecessary testing, including invasive procedures.”
More detailed findings, such as if a certain RF level was more predictive of lymphoma or whether other features in combination with RF heightened the risk, would be helpful, he said.
What Future Studies Should Look At
The studies call for further research into biomarkers for Sjögren disease–related lymphoma and treatment of the disease, both Dr. Mariette and Dr. Goules said.
Dr. Goules said a multicenter prospective study is needed to measure RF positivity and RF titers over time and determine whether higher levels mean an increased risk for lymphoma development or a shorter time interval until lymphoma onset. “Such a study requires a large number of RF-positive Sjögren’s disease patients who would be followed up for a long period of time,” Dr. Goules said.
To further evaluate treatment approaches for Sjögren disease–related lymphoma, Dr. Mariette said, a prospective study should compare the watch-and-wait approach with combination chemotherapy and anti-CD20 therapy. “It would be difficult to run because the primary endpoint would be lymphoma progression–free survival, and the secondary would be Sjögren’s relapse and mortality, but it would take a lot of time,” he said.
He added, “It’s a reason why this retrospective study is important. Maybe if we had another retrospective study reaching the same conclusion, I think it would be very, very strong evidence.”
Funding for the case-control study came from the European Commission–Horizon 2020 program. The retrospective treatment study had no outside funding. Dr. Mariette disclosed financial relationships with AstraZeneca, Bristol-Myers Squibb, Galapagos, GlaxoSmithKline, Novartis, and Pfizer. Dr. Alderuccio, Dr. Goules, and Dr. Baer had no relevant relationships to disclose.
A version of this article first appeared on Medscape.com.
, particularly mucosa-associated lymphoid tissue (MALT) lymphoma, based on recent findings that confirmed a key early biomarker and found that a systemic treatment strategy reduced Sjögren disease activity and the risk for lymphoma relapse.
Two European studies published in The Lancet Rheumatology — one a case-control study reporting that rheumatoid factor (RF) was an early and strong predictor of Sjögren disease–related MALT lymphoma and the other a retrospective study that found a combination of chemotherapy and anti-CD20 therapy with rituximab as a first-line treatment for lymphoma was more effective than localized treatment or watch-and-wait approach in minimizing autoimmune activity and treating the lymphoma — potentially shed new light on strategies to manage Sjögren disease–related lymphoma.
A commentary accompanying the studies noted that 5%-10% of patients with Sjögren disease will develop non-Hodgkin B-cell lymphoma, with marginal lymphoma the most common type of low-grade lymphoma. The commentary, led by Suzanne Arends, MD, a rheumatologist at the University of Groningen in Groningen, the Netherlands, found the studies “clinically relevant” but stated that the lack of consistent definitions between the two studies along with their retrospective nature prevent any “definitive conclusions.”
High Lymphoma Risk in Sjögren Disease
“It is the autoimmune disease in which the risk of lymphoma is the highest, a 10- to 20-fold increase of the risk of lymphoma in this disease,” Xavier Mariette, MD, PhD, co-senior author of the retrospective treatment study, said of Sjögren disease.
These lymphomas are predominantly the marginal zone type, specifically MALT occurring in the salivary glands, the same site of the autoimmune disease, said Dr. Mariette, who is the head of Rheumatology and professor at Université Paris-Saclay and Hôpital Bicêtre. Autoimmune B cells become lymphomatous. “So there is a continuity between autoimmunity and lymphoma genesis,” Dr. Mariette told this news organization. Typically, hematologists do not treat the lymphoma if it doesn’t migrate beyond the salivary glands, he said.
Dr. Mariette said his group’s findings make the case for a more aggressive treatment.
“When patients got the systemic treatment, there was a decreased risk of flare of the autoimmune disease of Sjögren’s, but there was no effect on the lymphoma formation,” Dr. Mariette said. “And when these patients have combined therapy, immunotherapy plus chemotherapy, compared to single immunotherapy, they did have improvement of the lymphoma progression-free survival.”
Their multicenter study enrolled 106 patients with Sjögren disease who developed lymphoma, 64% (n = 68) of whom had MALT, 13% (n = 14) of whom had other marginal zone subtypes, and the same percentage with diffuse large B-cell lymphoma. With a median follow-up of 7 years, 32 patients with marginal zone subtypes who had combination chemotherapy and anti-CD20 therapy had a 64% greater chance of lymphoma progression-free survival than 18 of their counterparts who received anti-CD20 monotherapy. Overall, outcomes for Sjögren disease systemic activity or survival were no different between the combination therapy and monotherapy arms.
Patients who had a systemic approach had a 57% reduced risk for new Sjögren disease activity compared with those who had first-line surgery or radiation (16%, n = 13) or underwent watch and wait (23%, n = 19).
The study strengthens the argument for a systemic treatment approach over localized therapy “because patients with Sjögren’s have a higher degree of development of MALT lymphoma of the salivary glands,” Juan Pablo Alderuccio, MD, a hematologist and lymphoma clinical site disease group leader at the Sylvester Comprehensive Cancer Center at the University of Miami Health Systems, Miami, Florida, told this news organization.
“We already knew that the combination of chemotherapy with rituximab usually achieves a better outcome,” Dr. Alderuccio added, citing a 2017 clinical trial that found combined chemotherapy with chlorambucil plus rituximab improved progression-free survival compared with either therapy alone. The latest retrospective study from France reinforces that, he said.
“The study also shows it’s very important to consider treatment-related specificities — to select the most appropriate treatment for these patients,” Dr. Alderuccio added.
RF Biomarker
The case-control study by researchers in Italy and Greece included 80 patients with Sjögren-related MALT lymphoma matched to controls with Sjögren disease who did not have lymphoma.
“We showed that rheumatoid factor positivity at the time of Sjögren’s disease diagnosis serves as the most reliable and temporally distant independent predictor of MALT lymphoma development,” lead author Andreas Goules, MD, a pathophysiologist at the National and Kapodistrian University of Athens, Athens, Greece, told this news organization.
He added that the study found that specific biomarkers in addition to RF positivity were signs of a high risk for MALT lymphoma and a more advanced stage of Sjögren disease–related lymphomagenesis. They included high systemic disease activity, measured as a European Alliance of Associations for Rheumatology Sjögren’s Syndrome Disease Activity Index ≥ 5, and specific B-cell manifestations, such as cryoglobulinemia, salivary gland enlargement, hypocomplementemia, and palpable purpura.
“Ideally, all patients should be evaluated at the time of diagnosis for the presence of RF and undergo a minor salivary gland biopsy to exclude an underlying ongoing lymphoproliferative process,” Dr. Goules said.
RF-positive patients with Sjögren disease require a closer follow-up to identify an advanced stage of lymphoma development, he added.
“It is well known that Sjögren’s disease is characterized by an increased mortality rate, compared to the general population, mainly due to the related lymphomas,” Dr. Goules added. “Thus, the early diagnosis of MALT lymphoma, which is associated with a better prognosis, is expected to improve the overall clinical outcome of Sjögren’s disease patients.”
Rheumatologists and hematologists should employ a similar strategy for Sjögren disease–related large B-cell lymphomas, he said.
“The pathogenetic mechanisms of these two lymphoma types are vastly different, so it wouldn’t be surprising if an entirely different risk factor emerges,” Dr. Goules said. “However, given the rarity of diffuse large B-cell lymphomas, much larger multinational cohorts will be necessary to obtain clinically and pathogenetically meaningful results.”
Alan Baer, MD, a rheumatologist and founder of the Sjögren’s Disease Clinic at Johns Hopkins University in Baltimore, noted Dr. Goules and colleagues are not the first to identify RF, along with a host of other clinical and laboratory findings, as a risk factor for lymphoma in patients with Sjögren disease. “The current study validates rheumatoid factor as an independent risk factor present at a time that is temporally distant from the time of lymphoma diagnosis,” he said.
However, he cautioned that RF alone isn’t highly predictive of Sjögren-related lymphoma. Up to 60% of patients with Sjögren disease are positive for RF at the time of the diagnosis, Dr. Baer said.
“Thus, the finding of rheumatoid factor alone does not necessarily mandate closer surveillance of this group of patients, with the potential for more frequent clinical exams, imaging, and laboratory testing,” he said. “Such an approach has the risk of subjecting patients to unnecessary testing, including invasive procedures.”
More detailed findings, such as if a certain RF level was more predictive of lymphoma or whether other features in combination with RF heightened the risk, would be helpful, he said.
What Future Studies Should Look At
The studies call for further research into biomarkers for Sjögren disease–related lymphoma and treatment of the disease, both Dr. Mariette and Dr. Goules said.
Dr. Goules said a multicenter prospective study is needed to measure RF positivity and RF titers over time and determine whether higher levels mean an increased risk for lymphoma development or a shorter time interval until lymphoma onset. “Such a study requires a large number of RF-positive Sjögren’s disease patients who would be followed up for a long period of time,” Dr. Goules said.
To further evaluate treatment approaches for Sjögren disease–related lymphoma, Dr. Mariette said, a prospective study should compare the watch-and-wait approach with combination chemotherapy and anti-CD20 therapy. “It would be difficult to run because the primary endpoint would be lymphoma progression–free survival, and the secondary would be Sjögren’s relapse and mortality, but it would take a lot of time,” he said.
He added, “It’s a reason why this retrospective study is important. Maybe if we had another retrospective study reaching the same conclusion, I think it would be very, very strong evidence.”
Funding for the case-control study came from the European Commission–Horizon 2020 program. The retrospective treatment study had no outside funding. Dr. Mariette disclosed financial relationships with AstraZeneca, Bristol-Myers Squibb, Galapagos, GlaxoSmithKline, Novartis, and Pfizer. Dr. Alderuccio, Dr. Goules, and Dr. Baer had no relevant relationships to disclose.
A version of this article first appeared on Medscape.com.
FROM THE LANCET RHEUMATOLOGY
Cancer Cases, Deaths in Men Predicted to Surge by 2050
TOPLINE:
— with substantial disparities in cancer cases and deaths by age and region of the world, a recent analysis found.
METHODOLOGY:
- Overall, men have higher cancer incidence and mortality rates, which can be largely attributed to a higher prevalence of modifiable risk factors such as smoking, alcohol consumption, and occupational carcinogens, as well as the underuse of cancer prevention, screening, and treatment services.
- To assess the burden of cancer in men of different ages and from different regions of the world, researchers analyzed data from the 2022 Global Cancer Observatory (GLOBOCAN), which provides national-level estimates for cancer cases and deaths.
- Study outcomes included the incidence, mortality, and prevalence of cancer among men in 2022, along with projections for 2050. Estimates were stratified by several factors, including age; region; and Human Development Index (HDI), a composite score for health, education, and standard of living.
- Researchers also calculated mortality-to-incidence ratios (MIRs) for various cancer types, where higher values indicate worse survival.
TAKEAWAY:
- The researchers reported an estimated 10.3 million cancer cases and 5.4 million deaths globally in 2022, with almost two thirds of cases and deaths occurring in men aged 65 years or older.
- By 2050, cancer cases and deaths were projected to increase by 84.3% (to 19 million) and 93.2% (to 10.5 million), respectively. The increase from 2022 to 2050 was more than twofold higher for older men and countries with low and medium HDI.
- In 2022, the estimated global cancer MIR among men was nearly 55%, with variations by cancer types, age, and HDI. The MIR was lowest for thyroid cancer (7.6%) and highest for pancreatic cancer (90.9%); among World Health Organization regions, Africa had the highest MIR (72.6%), while the Americas had the lowest MIR (39.1%); countries with the lowest HDI had the highest MIR (73.5% vs 41.1% for very high HDI).
- Lung cancer was the leading cause for cases and deaths in 2022 and was projected to remain the leading cause in 2050.
IN PRACTICE:
“Disparities in cancer incidence and mortality among men were observed across age groups, countries/territories, and HDI in 2022, with these disparities projected to widen further by 2050,” according to the authors, who called for efforts to “reduce disparities in cancer burden and ensure equity in cancer prevention and care for men across the globe.”
SOURCE:
The study, led by Habtamu Mellie Bizuayehu, PhD, School of Public Health, Faculty of Medicine, The University of Queensland, Brisbane, Australia, was published online in Cancer.
LIMITATIONS:
The findings may be influenced by the quality of GLOBOCAN data. Interpretation should be cautious as MIR may not fully reflect cancer outcome inequalities. The study did not include other measures of cancer burden, such as years of life lost or years lived with disability, which were unavailable from the data source.
DISCLOSURES:
The authors did not disclose any funding information. The authors declared no conflicts of interest.
This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.
TOPLINE:
— with substantial disparities in cancer cases and deaths by age and region of the world, a recent analysis found.
METHODOLOGY:
- Overall, men have higher cancer incidence and mortality rates, which can be largely attributed to a higher prevalence of modifiable risk factors such as smoking, alcohol consumption, and occupational carcinogens, as well as the underuse of cancer prevention, screening, and treatment services.
- To assess the burden of cancer in men of different ages and from different regions of the world, researchers analyzed data from the 2022 Global Cancer Observatory (GLOBOCAN), which provides national-level estimates for cancer cases and deaths.
- Study outcomes included the incidence, mortality, and prevalence of cancer among men in 2022, along with projections for 2050. Estimates were stratified by several factors, including age; region; and Human Development Index (HDI), a composite score for health, education, and standard of living.
- Researchers also calculated mortality-to-incidence ratios (MIRs) for various cancer types, where higher values indicate worse survival.
TAKEAWAY:
- The researchers reported an estimated 10.3 million cancer cases and 5.4 million deaths globally in 2022, with almost two thirds of cases and deaths occurring in men aged 65 years or older.
- By 2050, cancer cases and deaths were projected to increase by 84.3% (to 19 million) and 93.2% (to 10.5 million), respectively. The increase from 2022 to 2050 was more than twofold higher for older men and countries with low and medium HDI.
- In 2022, the estimated global cancer MIR among men was nearly 55%, with variations by cancer types, age, and HDI. The MIR was lowest for thyroid cancer (7.6%) and highest for pancreatic cancer (90.9%); among World Health Organization regions, Africa had the highest MIR (72.6%), while the Americas had the lowest MIR (39.1%); countries with the lowest HDI had the highest MIR (73.5% vs 41.1% for very high HDI).
- Lung cancer was the leading cause for cases and deaths in 2022 and was projected to remain the leading cause in 2050.
IN PRACTICE:
“Disparities in cancer incidence and mortality among men were observed across age groups, countries/territories, and HDI in 2022, with these disparities projected to widen further by 2050,” according to the authors, who called for efforts to “reduce disparities in cancer burden and ensure equity in cancer prevention and care for men across the globe.”
SOURCE:
The study, led by Habtamu Mellie Bizuayehu, PhD, School of Public Health, Faculty of Medicine, The University of Queensland, Brisbane, Australia, was published online in Cancer.
LIMITATIONS:
The findings may be influenced by the quality of GLOBOCAN data. Interpretation should be cautious as MIR may not fully reflect cancer outcome inequalities. The study did not include other measures of cancer burden, such as years of life lost or years lived with disability, which were unavailable from the data source.
DISCLOSURES:
The authors did not disclose any funding information. The authors declared no conflicts of interest.
This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.
TOPLINE:
— with substantial disparities in cancer cases and deaths by age and region of the world, a recent analysis found.
METHODOLOGY:
- Overall, men have higher cancer incidence and mortality rates, which can be largely attributed to a higher prevalence of modifiable risk factors such as smoking, alcohol consumption, and occupational carcinogens, as well as the underuse of cancer prevention, screening, and treatment services.
- To assess the burden of cancer in men of different ages and from different regions of the world, researchers analyzed data from the 2022 Global Cancer Observatory (GLOBOCAN), which provides national-level estimates for cancer cases and deaths.
- Study outcomes included the incidence, mortality, and prevalence of cancer among men in 2022, along with projections for 2050. Estimates were stratified by several factors, including age; region; and Human Development Index (HDI), a composite score for health, education, and standard of living.
- Researchers also calculated mortality-to-incidence ratios (MIRs) for various cancer types, where higher values indicate worse survival.
TAKEAWAY:
- The researchers reported an estimated 10.3 million cancer cases and 5.4 million deaths globally in 2022, with almost two thirds of cases and deaths occurring in men aged 65 years or older.
- By 2050, cancer cases and deaths were projected to increase by 84.3% (to 19 million) and 93.2% (to 10.5 million), respectively. The increase from 2022 to 2050 was more than twofold higher for older men and countries with low and medium HDI.
- In 2022, the estimated global cancer MIR among men was nearly 55%, with variations by cancer types, age, and HDI. The MIR was lowest for thyroid cancer (7.6%) and highest for pancreatic cancer (90.9%); among World Health Organization regions, Africa had the highest MIR (72.6%), while the Americas had the lowest MIR (39.1%); countries with the lowest HDI had the highest MIR (73.5% vs 41.1% for very high HDI).
- Lung cancer was the leading cause for cases and deaths in 2022 and was projected to remain the leading cause in 2050.
IN PRACTICE:
“Disparities in cancer incidence and mortality among men were observed across age groups, countries/territories, and HDI in 2022, with these disparities projected to widen further by 2050,” according to the authors, who called for efforts to “reduce disparities in cancer burden and ensure equity in cancer prevention and care for men across the globe.”
SOURCE:
The study, led by Habtamu Mellie Bizuayehu, PhD, School of Public Health, Faculty of Medicine, The University of Queensland, Brisbane, Australia, was published online in Cancer.
LIMITATIONS:
The findings may be influenced by the quality of GLOBOCAN data. Interpretation should be cautious as MIR may not fully reflect cancer outcome inequalities. The study did not include other measures of cancer burden, such as years of life lost or years lived with disability, which were unavailable from the data source.
DISCLOSURES:
The authors did not disclose any funding information. The authors declared no conflicts of interest.
This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.
Cancer Treatment 101: A Primer for Non-Oncologists
The remaining 700,000 or so often proceed to chemotherapy either immediately or upon cancer recurrence, spread, or newly recognized metastases. “Cures” after that point are rare.
I’m speaking in generalities, understanding that each cancer and each patient is unique.
Chemotherapy
Chemotherapy alone can cure a small number of cancer types. When added to radiation or surgery, chemotherapy can help to cure a wider range of cancer types. As an add-on, chemotherapy can extend the length and quality of life for many patients with cancer. Since chemotherapy is by definition “toxic,” it can also shorten the duration or harm the quality of life and provide false hope. The Table summarizes what chemotherapy can and cannot achieve in selected cancer types.
Careful, compassionate communication between patient and physician is key. Goals and expectations must be clearly understood.
Organized chemotherapeutic efforts are further categorized as first line, second line, and third line.
First-line treatment. The initial round of recommended chemotherapy for a specific cancer. It is typically considered the most effective treatment for that type and stage of cancer on the basis of current research and clinical trials.
Second-line treatment. This is the treatment used if the first-line chemotherapy doesn’t work as desired. Reasons to switch to second-line chemo include:
- Lack of response (the tumor failed to shrink).
- Progression (the cancer may have grown or spread further).
- Adverse side effects were too severe to continue.
The drugs used in second-line chemo will typically be different from those used in first line, sometimes because cancer cells can develop resistance to chemotherapy drugs over time. Moreover, the goal of second-line chemo may differ from that of first-line therapy. Rather than chiefly aiming for a cure, second-line treatment might focus on slowing cancer growth, managing symptoms, or improving quality of life. Unfortunately, not every type of cancer has a readily available second-line option.
Third-line treatment. Third-line options come into play when both the initial course of chemo (first line) and the subsequent treatment (second line) have failed to achieve remission or control the cancer’s spread. Owing to the progressive nature of advanced cancers, patients might not be eligible or healthy enough for third-line therapy. Depending on cancer type, the patient’s general health, and response to previous treatments, third-line options could include:
- New or different chemotherapy drugs compared with prior lines.
- Surgery to debulk the tumor.
- Radiation for symptom control.
- Targeted therapy: drugs designed to target specific vulnerabilities in cancer cells.
- Immunotherapy: agents that help the body’s immune system fight cancer cells.
- Clinical trials testing new or investigational treatments, which may be applicable at any time, depending on the questions being addressed.
The goals of third-line therapy may shift from aiming for a cure to managing symptoms, improving quality of life, and potentially slowing cancer growth. The decision to pursue third-line therapy involves careful consideration by the doctor and patient, weighing the potential benefits and risks of treatment considering the individual’s overall health and specific situation.
It’s important to have realistic expectations about the potential outcomes of third-line therapy. Although remission may be unlikely, third-line therapy can still play a role in managing the disease.
Navigating advanced cancer treatment is very complex. The patient and physician must together consider detailed explanations and clarifications to set expectations and make informed decisions about care.
Interventions to Consider Earlier
In traditional clinical oncology practice, other interventions are possible, but these may not be offered until treatment has reached the third line:
- Molecular testing.
- Palliation.
- Clinical trials.
- Innovative testing to guide targeted therapy by ascertaining which agents are most likely (or not likely at all) to be effective.
I would argue that the patient’s interests are better served by considering and offering these other interventions much earlier, even before starting first-line chemotherapy.
Molecular testing. The best time for molecular testing of a new malignant tumor is typically at the time of diagnosis. Here’s why:
- Molecular testing helps identify specific genetic mutations in the cancer cells. This information can be crucial for selecting targeted therapies that are most effective against those specific mutations. Early detection allows for the most treatment options. For example, for non–small cell lung cancer, early is best because treatment and outcomes may well be changed by test results.
- Knowing the tumor’s molecular makeup can help determine whether a patient qualifies for clinical trials of new drugs designed for specific mutations.
- Some molecular markers can offer information about the tumor’s aggressiveness and potential for metastasis so that prognosis can be informed.
Molecular testing can be a valuable tool throughout a cancer patient’s journey. With genetically diverse tumors, the initial biopsy might not capture the full picture. Molecular testing of circulating tumor DNA can be used to monitor a patient’s response to treatment and detect potential mutations that might arise during treatment resistance. Retesting after metastasis can provide additional information that can aid in treatment decisions.
Palliative care. The ideal time to discuss palliative care with a patient with cancer is early in the diagnosis and treatment process. Palliative care is not the same as hospice care; it isn’t just about end-of-life. Palliative care focuses on improving a patient’s quality of life throughout cancer treatment. Palliative care specialists can address a wide range of symptoms a patient might experience from cancer or its treatment, including pain, fatigue, nausea, and anxiety.
Early discussions allow for a more comprehensive care plan. Open communication about all treatment options, including palliative care, empowers patients to make informed decisions about their care goals and preferences.
Specific situations where discussing palliative care might be appropriate are:
- Soon after a cancer diagnosis.
- If the patient experiences significant side effects from cancer treatment.
- When considering different treatment options, palliative care can complement those treatments.
- In advanced stages of cancer, to focus on comfort and quality of life.
Clinical trials. Participation in a clinical trial to explore new or investigational treatments should always be considered.
In theory, clinical trials should be an option at any time in the patient’s course. But the organized clinical trial experience may not be available or appropriate. Then, the individual becomes a de facto “clinical trial with an n of 1.” Read this brief open-access blog post at Cancer Commons to learn more about that circumstance.
Innovative testing. The best choice of chemotherapeutic or targeted therapies is often unclear. The clinician is likely to follow published guidelines, often from the National Comprehensive Cancer Network.
These are evidence based and driven by consensus of experts. But guideline-recommended therapy is not always effective, and weeks or months can pass before this ineffectiveness becomes apparent. Thus, many researchers and companies are seeking methods of testing each patient’s specific cancer to determine in advance, or very quickly, whether a particular drug is likely to be effective.
Read more about these leading innovations:
SAGE Oncotest: Entering the Next Generation of Tailored Cancer Treatment
Alibrex: A New Blood Test to Reveal Whether a Cancer Treatment is Working
PARIS Test Uses Lab-Grown Mini-Tumors to Find a Patient’s Best Treatment
Using Live Cells from Patients to Find the Right Cancer Drug
Other innovative therapies under investigation could even be agnostic to cancer type:
Treating Pancreatic Cancer: Could Metabolism — Not Genomics — Be the Key?
High-Energy Blue Light Powers a Promising New Treatment to Destroy Cancer Cells
All-Clear Follow-Up: Hydrogen Peroxide Appears to Treat Oral and Skin Lesions
Cancer is a tough nut to crack. Many people and organizations are trying very hard. So much is being learned. Some approaches will be effective. We can all hope.
Dr. Lundberg, editor in chief, Cancer Commons, has disclosed no relevant financial relationships.
A version of this article appeared on Medscape.com.
The remaining 700,000 or so often proceed to chemotherapy either immediately or upon cancer recurrence, spread, or newly recognized metastases. “Cures” after that point are rare.
I’m speaking in generalities, understanding that each cancer and each patient is unique.
Chemotherapy
Chemotherapy alone can cure a small number of cancer types. When added to radiation or surgery, chemotherapy can help to cure a wider range of cancer types. As an add-on, chemotherapy can extend the length and quality of life for many patients with cancer. Since chemotherapy is by definition “toxic,” it can also shorten the duration or harm the quality of life and provide false hope. The Table summarizes what chemotherapy can and cannot achieve in selected cancer types.
Careful, compassionate communication between patient and physician is key. Goals and expectations must be clearly understood.
Organized chemotherapeutic efforts are further categorized as first line, second line, and third line.
First-line treatment. The initial round of recommended chemotherapy for a specific cancer. It is typically considered the most effective treatment for that type and stage of cancer on the basis of current research and clinical trials.
Second-line treatment. This is the treatment used if the first-line chemotherapy doesn’t work as desired. Reasons to switch to second-line chemo include:
- Lack of response (the tumor failed to shrink).
- Progression (the cancer may have grown or spread further).
- Adverse side effects were too severe to continue.
The drugs used in second-line chemo will typically be different from those used in first line, sometimes because cancer cells can develop resistance to chemotherapy drugs over time. Moreover, the goal of second-line chemo may differ from that of first-line therapy. Rather than chiefly aiming for a cure, second-line treatment might focus on slowing cancer growth, managing symptoms, or improving quality of life. Unfortunately, not every type of cancer has a readily available second-line option.
Third-line treatment. Third-line options come into play when both the initial course of chemo (first line) and the subsequent treatment (second line) have failed to achieve remission or control the cancer’s spread. Owing to the progressive nature of advanced cancers, patients might not be eligible or healthy enough for third-line therapy. Depending on cancer type, the patient’s general health, and response to previous treatments, third-line options could include:
- New or different chemotherapy drugs compared with prior lines.
- Surgery to debulk the tumor.
- Radiation for symptom control.
- Targeted therapy: drugs designed to target specific vulnerabilities in cancer cells.
- Immunotherapy: agents that help the body’s immune system fight cancer cells.
- Clinical trials testing new or investigational treatments, which may be applicable at any time, depending on the questions being addressed.
The goals of third-line therapy may shift from aiming for a cure to managing symptoms, improving quality of life, and potentially slowing cancer growth. The decision to pursue third-line therapy involves careful consideration by the doctor and patient, weighing the potential benefits and risks of treatment considering the individual’s overall health and specific situation.
It’s important to have realistic expectations about the potential outcomes of third-line therapy. Although remission may be unlikely, third-line therapy can still play a role in managing the disease.
Navigating advanced cancer treatment is very complex. The patient and physician must together consider detailed explanations and clarifications to set expectations and make informed decisions about care.
Interventions to Consider Earlier
In traditional clinical oncology practice, other interventions are possible, but these may not be offered until treatment has reached the third line:
- Molecular testing.
- Palliation.
- Clinical trials.
- Innovative testing to guide targeted therapy by ascertaining which agents are most likely (or not likely at all) to be effective.
I would argue that the patient’s interests are better served by considering and offering these other interventions much earlier, even before starting first-line chemotherapy.
Molecular testing. The best time for molecular testing of a new malignant tumor is typically at the time of diagnosis. Here’s why:
- Molecular testing helps identify specific genetic mutations in the cancer cells. This information can be crucial for selecting targeted therapies that are most effective against those specific mutations. Early detection allows for the most treatment options. For example, for non–small cell lung cancer, early is best because treatment and outcomes may well be changed by test results.
- Knowing the tumor’s molecular makeup can help determine whether a patient qualifies for clinical trials of new drugs designed for specific mutations.
- Some molecular markers can offer information about the tumor’s aggressiveness and potential for metastasis so that prognosis can be informed.
Molecular testing can be a valuable tool throughout a cancer patient’s journey. With genetically diverse tumors, the initial biopsy might not capture the full picture. Molecular testing of circulating tumor DNA can be used to monitor a patient’s response to treatment and detect potential mutations that might arise during treatment resistance. Retesting after metastasis can provide additional information that can aid in treatment decisions.
Palliative care. The ideal time to discuss palliative care with a patient with cancer is early in the diagnosis and treatment process. Palliative care is not the same as hospice care; it isn’t just about end-of-life. Palliative care focuses on improving a patient’s quality of life throughout cancer treatment. Palliative care specialists can address a wide range of symptoms a patient might experience from cancer or its treatment, including pain, fatigue, nausea, and anxiety.
Early discussions allow for a more comprehensive care plan. Open communication about all treatment options, including palliative care, empowers patients to make informed decisions about their care goals and preferences.
Specific situations where discussing palliative care might be appropriate are:
- Soon after a cancer diagnosis.
- If the patient experiences significant side effects from cancer treatment.
- When considering different treatment options, palliative care can complement those treatments.
- In advanced stages of cancer, to focus on comfort and quality of life.
Clinical trials. Participation in a clinical trial to explore new or investigational treatments should always be considered.
In theory, clinical trials should be an option at any time in the patient’s course. But the organized clinical trial experience may not be available or appropriate. Then, the individual becomes a de facto “clinical trial with an n of 1.” Read this brief open-access blog post at Cancer Commons to learn more about that circumstance.
Innovative testing. The best choice of chemotherapeutic or targeted therapies is often unclear. The clinician is likely to follow published guidelines, often from the National Comprehensive Cancer Network.
These are evidence based and driven by consensus of experts. But guideline-recommended therapy is not always effective, and weeks or months can pass before this ineffectiveness becomes apparent. Thus, many researchers and companies are seeking methods of testing each patient’s specific cancer to determine in advance, or very quickly, whether a particular drug is likely to be effective.
Read more about these leading innovations:
SAGE Oncotest: Entering the Next Generation of Tailored Cancer Treatment
Alibrex: A New Blood Test to Reveal Whether a Cancer Treatment is Working
PARIS Test Uses Lab-Grown Mini-Tumors to Find a Patient’s Best Treatment
Using Live Cells from Patients to Find the Right Cancer Drug
Other innovative therapies under investigation could even be agnostic to cancer type:
Treating Pancreatic Cancer: Could Metabolism — Not Genomics — Be the Key?
High-Energy Blue Light Powers a Promising New Treatment to Destroy Cancer Cells
All-Clear Follow-Up: Hydrogen Peroxide Appears to Treat Oral and Skin Lesions
Cancer is a tough nut to crack. Many people and organizations are trying very hard. So much is being learned. Some approaches will be effective. We can all hope.
Dr. Lundberg, editor in chief, Cancer Commons, has disclosed no relevant financial relationships.
A version of this article appeared on Medscape.com.
The remaining 700,000 or so often proceed to chemotherapy either immediately or upon cancer recurrence, spread, or newly recognized metastases. “Cures” after that point are rare.
I’m speaking in generalities, understanding that each cancer and each patient is unique.
Chemotherapy
Chemotherapy alone can cure a small number of cancer types. When added to radiation or surgery, chemotherapy can help to cure a wider range of cancer types. As an add-on, chemotherapy can extend the length and quality of life for many patients with cancer. Since chemotherapy is by definition “toxic,” it can also shorten the duration or harm the quality of life and provide false hope. The Table summarizes what chemotherapy can and cannot achieve in selected cancer types.
Careful, compassionate communication between patient and physician is key. Goals and expectations must be clearly understood.
Organized chemotherapeutic efforts are further categorized as first line, second line, and third line.
First-line treatment. The initial round of recommended chemotherapy for a specific cancer. It is typically considered the most effective treatment for that type and stage of cancer on the basis of current research and clinical trials.
Second-line treatment. This is the treatment used if the first-line chemotherapy doesn’t work as desired. Reasons to switch to second-line chemo include:
- Lack of response (the tumor failed to shrink).
- Progression (the cancer may have grown or spread further).
- Adverse side effects were too severe to continue.
The drugs used in second-line chemo will typically be different from those used in first line, sometimes because cancer cells can develop resistance to chemotherapy drugs over time. Moreover, the goal of second-line chemo may differ from that of first-line therapy. Rather than chiefly aiming for a cure, second-line treatment might focus on slowing cancer growth, managing symptoms, or improving quality of life. Unfortunately, not every type of cancer has a readily available second-line option.
Third-line treatment. Third-line options come into play when both the initial course of chemo (first line) and the subsequent treatment (second line) have failed to achieve remission or control the cancer’s spread. Owing to the progressive nature of advanced cancers, patients might not be eligible or healthy enough for third-line therapy. Depending on cancer type, the patient’s general health, and response to previous treatments, third-line options could include:
- New or different chemotherapy drugs compared with prior lines.
- Surgery to debulk the tumor.
- Radiation for symptom control.
- Targeted therapy: drugs designed to target specific vulnerabilities in cancer cells.
- Immunotherapy: agents that help the body’s immune system fight cancer cells.
- Clinical trials testing new or investigational treatments, which may be applicable at any time, depending on the questions being addressed.
The goals of third-line therapy may shift from aiming for a cure to managing symptoms, improving quality of life, and potentially slowing cancer growth. The decision to pursue third-line therapy involves careful consideration by the doctor and patient, weighing the potential benefits and risks of treatment considering the individual’s overall health and specific situation.
It’s important to have realistic expectations about the potential outcomes of third-line therapy. Although remission may be unlikely, third-line therapy can still play a role in managing the disease.
Navigating advanced cancer treatment is very complex. The patient and physician must together consider detailed explanations and clarifications to set expectations and make informed decisions about care.
Interventions to Consider Earlier
In traditional clinical oncology practice, other interventions are possible, but these may not be offered until treatment has reached the third line:
- Molecular testing.
- Palliation.
- Clinical trials.
- Innovative testing to guide targeted therapy by ascertaining which agents are most likely (or not likely at all) to be effective.
I would argue that the patient’s interests are better served by considering and offering these other interventions much earlier, even before starting first-line chemotherapy.
Molecular testing. The best time for molecular testing of a new malignant tumor is typically at the time of diagnosis. Here’s why:
- Molecular testing helps identify specific genetic mutations in the cancer cells. This information can be crucial for selecting targeted therapies that are most effective against those specific mutations. Early detection allows for the most treatment options. For example, for non–small cell lung cancer, early is best because treatment and outcomes may well be changed by test results.
- Knowing the tumor’s molecular makeup can help determine whether a patient qualifies for clinical trials of new drugs designed for specific mutations.
- Some molecular markers can offer information about the tumor’s aggressiveness and potential for metastasis so that prognosis can be informed.
Molecular testing can be a valuable tool throughout a cancer patient’s journey. With genetically diverse tumors, the initial biopsy might not capture the full picture. Molecular testing of circulating tumor DNA can be used to monitor a patient’s response to treatment and detect potential mutations that might arise during treatment resistance. Retesting after metastasis can provide additional information that can aid in treatment decisions.
Palliative care. The ideal time to discuss palliative care with a patient with cancer is early in the diagnosis and treatment process. Palliative care is not the same as hospice care; it isn’t just about end-of-life. Palliative care focuses on improving a patient’s quality of life throughout cancer treatment. Palliative care specialists can address a wide range of symptoms a patient might experience from cancer or its treatment, including pain, fatigue, nausea, and anxiety.
Early discussions allow for a more comprehensive care plan. Open communication about all treatment options, including palliative care, empowers patients to make informed decisions about their care goals and preferences.
Specific situations where discussing palliative care might be appropriate are:
- Soon after a cancer diagnosis.
- If the patient experiences significant side effects from cancer treatment.
- When considering different treatment options, palliative care can complement those treatments.
- In advanced stages of cancer, to focus on comfort and quality of life.
Clinical trials. Participation in a clinical trial to explore new or investigational treatments should always be considered.
In theory, clinical trials should be an option at any time in the patient’s course. But the organized clinical trial experience may not be available or appropriate. Then, the individual becomes a de facto “clinical trial with an n of 1.” Read this brief open-access blog post at Cancer Commons to learn more about that circumstance.
Innovative testing. The best choice of chemotherapeutic or targeted therapies is often unclear. The clinician is likely to follow published guidelines, often from the National Comprehensive Cancer Network.
These are evidence based and driven by consensus of experts. But guideline-recommended therapy is not always effective, and weeks or months can pass before this ineffectiveness becomes apparent. Thus, many researchers and companies are seeking methods of testing each patient’s specific cancer to determine in advance, or very quickly, whether a particular drug is likely to be effective.
Read more about these leading innovations:
SAGE Oncotest: Entering the Next Generation of Tailored Cancer Treatment
Alibrex: A New Blood Test to Reveal Whether a Cancer Treatment is Working
PARIS Test Uses Lab-Grown Mini-Tumors to Find a Patient’s Best Treatment
Using Live Cells from Patients to Find the Right Cancer Drug
Other innovative therapies under investigation could even be agnostic to cancer type:
Treating Pancreatic Cancer: Could Metabolism — Not Genomics — Be the Key?
High-Energy Blue Light Powers a Promising New Treatment to Destroy Cancer Cells
All-Clear Follow-Up: Hydrogen Peroxide Appears to Treat Oral and Skin Lesions
Cancer is a tough nut to crack. Many people and organizations are trying very hard. So much is being learned. Some approaches will be effective. We can all hope.
Dr. Lundberg, editor in chief, Cancer Commons, has disclosed no relevant financial relationships.
A version of this article appeared on Medscape.com.
When Childhood Cancer Survivors Face Sexual Challenges
Childhood cancers represent a diverse group of neoplasms, and thanks to advances in treatment, survival rates have improved significantly. Today, more than 80%-85% of children diagnosed with cancer in developed countries survive into adulthood.
This increase in survival has brought new challenges, however. Compared with the general population, childhood cancer survivors (CCS) are at a notably higher risk for early mortality, developing secondary cancers, and experiencing various long-term clinical and psychosocial issues stemming from their disease or its treatment.
Long-term follow-up care for CCS is a complex and evolving field. Despite ongoing efforts to establish global and national guidelines, current evidence indicates that the care and management of these patients remain suboptimal.
The disruptions caused by cancer and its treatment can interfere with normal physiological and psychological development, leading to issues with sexual function. This aspect of health is critical as it influences not just physical well-being but also psychosocial, developmental, and emotional health.
Characteristics and Mechanisms
Sexual functioning encompasses the physiological and psychological aspects of sexual behavior, including desire, arousal, orgasm, sexual pleasure, and overall satisfaction.
As CCS reach adolescence or adulthood, they often face sexual and reproductive issues, particularly as they enter romantic relationships.
Sexual functioning is a complex process that relies on the interaction of various factors, including physiological health, psychosexual development, romantic relationships, body image, and desire.
Despite its importance, the impact of childhood cancer on sexual function is often overlooked, even though cancer and its treatments can have lifelong effects.
Sexual Function in CCS
A recent review aimed to summarize the existing research on sexual function among CCS, highlighting assessment tools, key stages of psychosexual development, common sexual problems, and the prevalence of sexual dysfunction.
The review study included 22 studies published between 2000 and 2022, comprising two qualitative, six cohort, and 14 cross-sectional studies.
Most CCS reached all key stages of psychosexual development at an average age of 29.8 years. Although some milestones were achieved later than is typical, many survivors felt they reached these stages at the appropriate time. Sexual initiation was less common among those who had undergone intensive neurotoxic treatments, such as those diagnosed with brain tumors or leukemia in childhood.
In a cross-sectional study of CCS aged 17-39 years, about one third had never engaged in sexual intercourse, 41.4% reported never experiencing sexual attraction, 44.8% were dissatisfied with their sex lives, and many rarely felt sexually attractive to others. Another study found that common issues among CCS included a lack of interest in sex (30%), difficulty enjoying sex (24%), and difficulty becoming aroused (23%). However, comparing and analyzing these problems was challenging due to the lack of standardized assessment criteria.
The prevalence of sexual dysfunction among CCS ranged from 12.3% to 46.5%. For males, the prevalence ranged from 12.3% to 54.0%, while for females, it ranged from 19.9% to 57.0%.
Factors Influencing Sexual Function
The review identified the following four categories of factors influencing sexual function in CCS: Demographic, treatment-related, psychological, and physiological.
Demographic factors: Gender, age, education level, relationship status, income level, and race all play roles in sexual function.
Female survivors reported more severe sexual dysfunction and poorer sexual health than did male survivors. Age at cancer diagnosis, age at evaluation, and the time since diagnosis were closely linked to sexual experiences. Patients diagnosed with cancer during childhood tended to report better sexual function than those diagnosed during adolescence.
Treatment-related factors: The type of cancer and intensity of treatment, along with surgical history, were significant factors. Surgeries involving the spinal cord or sympathetic nerves, as well as a history of prostate or pelvic surgery, were strongly associated with erectile dysfunction in men. In women, pelvic surgeries and treatments to the pelvic area were commonly linked to sexual dysfunction.
The association between treatment intensity and sexual function was noted across several studies, although the results were not always consistent. For example, testicular radiation above 10 Gy was positively correlated with sexual dysfunction. Women who underwent more intensive treatments were more likely to report issues in multiple areas of sexual function, while men in this group were less likely to have children.
Among female CCS, certain types of cancer, such as germ cell tumors, renal tumors, and leukemia, present a higher risk for sexual dysfunction. Women who had CNS tumors in childhood frequently reported problems like difficulty in sexual arousal, low sexual satisfaction, infrequent sexual activity, and fewer sexual partners, compared with survivors of other cancers. Survivors of acute lymphoblastic leukemia and those who underwent hematopoietic stem cell transplantation (HSCT) also showed varying degrees of impaired sexual function, compared with the general population. The HSCT group showed significant testicular damage, including reduced testicular volumes, low testosterone levels, and low sperm counts.
Psychological factors: These factors, such as emotional distress, play a significant role in sexual dysfunction among CCS. Symptoms like anxiety, nervousness during sexual activity, and depression are commonly reported by those with sexual dysfunction. The connection between body image and sexual function is complex. Many CCS with sexual dysfunction express concern about how others, particularly their partners, perceived their altered body image due to cancer and its treatment.
Physiological factors: In male CCS, low serum testosterone levels and low lean muscle mass are linked to an increased risk for sexual dysfunction. Treatments involving alkylating agents or testicular radiation, and surgery or radiotherapy targeting the genitourinary organs or the hypothalamic-pituitary region, can lead to various physiological and endocrine disorders, contributing to sexual dysfunction. Despite these risks, there is a lack of research evaluating sexual function through the lens of the hypothalamic-pituitary-gonadal axis and neuroendocrine pathways.
This story was translated from Univadis Italy using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.
Childhood cancers represent a diverse group of neoplasms, and thanks to advances in treatment, survival rates have improved significantly. Today, more than 80%-85% of children diagnosed with cancer in developed countries survive into adulthood.
This increase in survival has brought new challenges, however. Compared with the general population, childhood cancer survivors (CCS) are at a notably higher risk for early mortality, developing secondary cancers, and experiencing various long-term clinical and psychosocial issues stemming from their disease or its treatment.
Long-term follow-up care for CCS is a complex and evolving field. Despite ongoing efforts to establish global and national guidelines, current evidence indicates that the care and management of these patients remain suboptimal.
The disruptions caused by cancer and its treatment can interfere with normal physiological and psychological development, leading to issues with sexual function. This aspect of health is critical as it influences not just physical well-being but also psychosocial, developmental, and emotional health.
Characteristics and Mechanisms
Sexual functioning encompasses the physiological and psychological aspects of sexual behavior, including desire, arousal, orgasm, sexual pleasure, and overall satisfaction.
As CCS reach adolescence or adulthood, they often face sexual and reproductive issues, particularly as they enter romantic relationships.
Sexual functioning is a complex process that relies on the interaction of various factors, including physiological health, psychosexual development, romantic relationships, body image, and desire.
Despite its importance, the impact of childhood cancer on sexual function is often overlooked, even though cancer and its treatments can have lifelong effects.
Sexual Function in CCS
A recent review aimed to summarize the existing research on sexual function among CCS, highlighting assessment tools, key stages of psychosexual development, common sexual problems, and the prevalence of sexual dysfunction.
The review study included 22 studies published between 2000 and 2022, comprising two qualitative, six cohort, and 14 cross-sectional studies.
Most CCS reached all key stages of psychosexual development at an average age of 29.8 years. Although some milestones were achieved later than is typical, many survivors felt they reached these stages at the appropriate time. Sexual initiation was less common among those who had undergone intensive neurotoxic treatments, such as those diagnosed with brain tumors or leukemia in childhood.
In a cross-sectional study of CCS aged 17-39 years, about one third had never engaged in sexual intercourse, 41.4% reported never experiencing sexual attraction, 44.8% were dissatisfied with their sex lives, and many rarely felt sexually attractive to others. Another study found that common issues among CCS included a lack of interest in sex (30%), difficulty enjoying sex (24%), and difficulty becoming aroused (23%). However, comparing and analyzing these problems was challenging due to the lack of standardized assessment criteria.
The prevalence of sexual dysfunction among CCS ranged from 12.3% to 46.5%. For males, the prevalence ranged from 12.3% to 54.0%, while for females, it ranged from 19.9% to 57.0%.
Factors Influencing Sexual Function
The review identified the following four categories of factors influencing sexual function in CCS: Demographic, treatment-related, psychological, and physiological.
Demographic factors: Gender, age, education level, relationship status, income level, and race all play roles in sexual function.
Female survivors reported more severe sexual dysfunction and poorer sexual health than did male survivors. Age at cancer diagnosis, age at evaluation, and the time since diagnosis were closely linked to sexual experiences. Patients diagnosed with cancer during childhood tended to report better sexual function than those diagnosed during adolescence.
Treatment-related factors: The type of cancer and intensity of treatment, along with surgical history, were significant factors. Surgeries involving the spinal cord or sympathetic nerves, as well as a history of prostate or pelvic surgery, were strongly associated with erectile dysfunction in men. In women, pelvic surgeries and treatments to the pelvic area were commonly linked to sexual dysfunction.
The association between treatment intensity and sexual function was noted across several studies, although the results were not always consistent. For example, testicular radiation above 10 Gy was positively correlated with sexual dysfunction. Women who underwent more intensive treatments were more likely to report issues in multiple areas of sexual function, while men in this group were less likely to have children.
Among female CCS, certain types of cancer, such as germ cell tumors, renal tumors, and leukemia, present a higher risk for sexual dysfunction. Women who had CNS tumors in childhood frequently reported problems like difficulty in sexual arousal, low sexual satisfaction, infrequent sexual activity, and fewer sexual partners, compared with survivors of other cancers. Survivors of acute lymphoblastic leukemia and those who underwent hematopoietic stem cell transplantation (HSCT) also showed varying degrees of impaired sexual function, compared with the general population. The HSCT group showed significant testicular damage, including reduced testicular volumes, low testosterone levels, and low sperm counts.
Psychological factors: These factors, such as emotional distress, play a significant role in sexual dysfunction among CCS. Symptoms like anxiety, nervousness during sexual activity, and depression are commonly reported by those with sexual dysfunction. The connection between body image and sexual function is complex. Many CCS with sexual dysfunction express concern about how others, particularly their partners, perceived their altered body image due to cancer and its treatment.
Physiological factors: In male CCS, low serum testosterone levels and low lean muscle mass are linked to an increased risk for sexual dysfunction. Treatments involving alkylating agents or testicular radiation, and surgery or radiotherapy targeting the genitourinary organs or the hypothalamic-pituitary region, can lead to various physiological and endocrine disorders, contributing to sexual dysfunction. Despite these risks, there is a lack of research evaluating sexual function through the lens of the hypothalamic-pituitary-gonadal axis and neuroendocrine pathways.
This story was translated from Univadis Italy using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.
Childhood cancers represent a diverse group of neoplasms, and thanks to advances in treatment, survival rates have improved significantly. Today, more than 80%-85% of children diagnosed with cancer in developed countries survive into adulthood.
This increase in survival has brought new challenges, however. Compared with the general population, childhood cancer survivors (CCS) are at a notably higher risk for early mortality, developing secondary cancers, and experiencing various long-term clinical and psychosocial issues stemming from their disease or its treatment.
Long-term follow-up care for CCS is a complex and evolving field. Despite ongoing efforts to establish global and national guidelines, current evidence indicates that the care and management of these patients remain suboptimal.
The disruptions caused by cancer and its treatment can interfere with normal physiological and psychological development, leading to issues with sexual function. This aspect of health is critical as it influences not just physical well-being but also psychosocial, developmental, and emotional health.
Characteristics and Mechanisms
Sexual functioning encompasses the physiological and psychological aspects of sexual behavior, including desire, arousal, orgasm, sexual pleasure, and overall satisfaction.
As CCS reach adolescence or adulthood, they often face sexual and reproductive issues, particularly as they enter romantic relationships.
Sexual functioning is a complex process that relies on the interaction of various factors, including physiological health, psychosexual development, romantic relationships, body image, and desire.
Despite its importance, the impact of childhood cancer on sexual function is often overlooked, even though cancer and its treatments can have lifelong effects.
Sexual Function in CCS
A recent review aimed to summarize the existing research on sexual function among CCS, highlighting assessment tools, key stages of psychosexual development, common sexual problems, and the prevalence of sexual dysfunction.
The review study included 22 studies published between 2000 and 2022, comprising two qualitative, six cohort, and 14 cross-sectional studies.
Most CCS reached all key stages of psychosexual development at an average age of 29.8 years. Although some milestones were achieved later than is typical, many survivors felt they reached these stages at the appropriate time. Sexual initiation was less common among those who had undergone intensive neurotoxic treatments, such as those diagnosed with brain tumors or leukemia in childhood.
In a cross-sectional study of CCS aged 17-39 years, about one third had never engaged in sexual intercourse, 41.4% reported never experiencing sexual attraction, 44.8% were dissatisfied with their sex lives, and many rarely felt sexually attractive to others. Another study found that common issues among CCS included a lack of interest in sex (30%), difficulty enjoying sex (24%), and difficulty becoming aroused (23%). However, comparing and analyzing these problems was challenging due to the lack of standardized assessment criteria.
The prevalence of sexual dysfunction among CCS ranged from 12.3% to 46.5%. For males, the prevalence ranged from 12.3% to 54.0%, while for females, it ranged from 19.9% to 57.0%.
Factors Influencing Sexual Function
The review identified the following four categories of factors influencing sexual function in CCS: Demographic, treatment-related, psychological, and physiological.
Demographic factors: Gender, age, education level, relationship status, income level, and race all play roles in sexual function.
Female survivors reported more severe sexual dysfunction and poorer sexual health than did male survivors. Age at cancer diagnosis, age at evaluation, and the time since diagnosis were closely linked to sexual experiences. Patients diagnosed with cancer during childhood tended to report better sexual function than those diagnosed during adolescence.
Treatment-related factors: The type of cancer and intensity of treatment, along with surgical history, were significant factors. Surgeries involving the spinal cord or sympathetic nerves, as well as a history of prostate or pelvic surgery, were strongly associated with erectile dysfunction in men. In women, pelvic surgeries and treatments to the pelvic area were commonly linked to sexual dysfunction.
The association between treatment intensity and sexual function was noted across several studies, although the results were not always consistent. For example, testicular radiation above 10 Gy was positively correlated with sexual dysfunction. Women who underwent more intensive treatments were more likely to report issues in multiple areas of sexual function, while men in this group were less likely to have children.
Among female CCS, certain types of cancer, such as germ cell tumors, renal tumors, and leukemia, present a higher risk for sexual dysfunction. Women who had CNS tumors in childhood frequently reported problems like difficulty in sexual arousal, low sexual satisfaction, infrequent sexual activity, and fewer sexual partners, compared with survivors of other cancers. Survivors of acute lymphoblastic leukemia and those who underwent hematopoietic stem cell transplantation (HSCT) also showed varying degrees of impaired sexual function, compared with the general population. The HSCT group showed significant testicular damage, including reduced testicular volumes, low testosterone levels, and low sperm counts.
Psychological factors: These factors, such as emotional distress, play a significant role in sexual dysfunction among CCS. Symptoms like anxiety, nervousness during sexual activity, and depression are commonly reported by those with sexual dysfunction. The connection between body image and sexual function is complex. Many CCS with sexual dysfunction express concern about how others, particularly their partners, perceived their altered body image due to cancer and its treatment.
Physiological factors: In male CCS, low serum testosterone levels and low lean muscle mass are linked to an increased risk for sexual dysfunction. Treatments involving alkylating agents or testicular radiation, and surgery or radiotherapy targeting the genitourinary organs or the hypothalamic-pituitary region, can lead to various physiological and endocrine disorders, contributing to sexual dysfunction. Despite these risks, there is a lack of research evaluating sexual function through the lens of the hypothalamic-pituitary-gonadal axis and neuroendocrine pathways.
This story was translated from Univadis Italy using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.