AVAHO

Scientists have developed a biodegradable implant that helps chemotherapy drugs penetrate the blood-brain barrier in mice and deliver a direct hit on brain tumors.

It’s the latest advance in a rapidly growing field using ultrasound – high-frequency sound waves undetectable to humans – to fight cancer and other diseases.

The problem addressed by the researchers is the blood-brain barrier, a nearly impenetrable blood vessel lining that keeps harmful molecules from passing into the brain from the blood. But this lining can also block chemo drugs from reaching cancer cells.

So the scientists implanted 1-cm² devices into the skulls of mice, directly behind the tumor site. The implants generate ultrasound waves, loosening the barrier and allowing the drugs to reach the tumor. The sound waves leave healthy tissue undamaged.

“You inject the drug into the body and turn on the ultrasound at the same time. You’re going to hit precisely at the tumor area every single time you use it,” said lead study author Thanh Nguyen, PhD, an associate professor of mechanical engineering at the University of Connecticut, Storrs.

The drug used in the study was paclitaxel, which normally struggles to get through the blood-brain barrier. The tumors shrank, and the mice doubled their lifetime, compared with untreated mice. The mice showed no bad health effects 6 months later. 
 

Breaking through the blood-brain barrier 

The biodegradable implant is made of glycine, an amino acid that’s also strongly piezoelectric, meaning it vibrates when subjected to an electrical current. To make it, researchers cultivated glycine crystals, shattered them into pieces, and finally used a process called electrospinning, which applies a high electrical voltage to the nanocrystals. 

Voltage flows to the implant via an external device. The resulting ultrasound causes the tightly adhered cells of the blood-brain barrier to vibrate, stretching them out and creating space for pores to form. 

“That allows in very tiny particles, including chemo drugs,” said Dr. Nguyen. 

His earlier biodegradable implant broke apart from the force, but the new glycine implant is more flexible, stable, and highly piezoelectric. It could be implanted after a patient has surgery to remove a brain tumor, to continue treating residual cancer cells. The implant dissolves harmlessly in the body over time, and doctors can control its lifespan. 
 

A new wave of uses for ultrasound 

Dr. Nguyen’s study builds on similar efforts, including a recent clinical trial of a nonbiodegradable implant for treating brain tumors. Ultrasound can focus energy on precise targets in the body.

It’s like “using a magnifying glass to focus multiple beams of light on a point and burn a hole in a leaf,” said Neal Kassell, MD, founder and chairman of the Focused Ultrasound Foundation. This approach spares adjacent normal tissue.  

Doctors now understand more than 30 ways that ultrasound interacts with tissue – from destroying abnormal tissue to delivering drugs more effectively to stimulating an immune response. A decade ago, only five such interactions were known.

This opens the door for treating “a wide spectrum of medical disorders,” from neurodegenerative diseases like Alzheimer’s and Parkinson’s to difficult-to-treat cancers of the prostate and pancreas, and even addiction, said Dr. Kassell. 

Dr. Kassell envisions using focused ultrasound to treat brain tumors as an alternative (or complement) to surgery, chemotherapy, immunotherapy, or radiation therapy. In the meantime, implants have helped show “the effectiveness of opening the blood-brain barrier.”

Dr. Nguyen’s team plans on testing the safety and efficacy of their implant in pigs next. Eventually, Dr. Nguyen hopes to develop a patch with an array of implants to target different areas of the brain. 

One study coauthor is cofounder of PiezoBioMembrane and SingleTimeMicroneedles. The other study authors reported no conflicts of interest.

A version of this article originally appeared on WebMD.com.

Scientists have developed a biodegradable implant that helps chemotherapy drugs penetrate the blood-brain barrier in mice and deliver a direct hit on brain tumors.

It’s the latest advance in a rapidly growing field using ultrasound – high-frequency sound waves undetectable to humans – to fight cancer and other diseases.

The problem addressed by the researchers is the blood-brain barrier, a nearly impenetrable blood vessel lining that keeps harmful molecules from passing into the brain from the blood. But this lining can also block chemo drugs from reaching cancer cells.

So the scientists implanted 1-cm² devices into the skulls of mice, directly behind the tumor site. The implants generate ultrasound waves, loosening the barrier and allowing the drugs to reach the tumor. The sound waves leave healthy tissue undamaged.

“You inject the drug into the body and turn on the ultrasound at the same time. You’re going to hit precisely at the tumor area every single time you use it,” said lead study author Thanh Nguyen, PhD, an associate professor of mechanical engineering at the University of Connecticut, Storrs.

The drug used in the study was paclitaxel, which normally struggles to get through the blood-brain barrier. The tumors shrank, and the mice doubled their lifetime, compared with untreated mice. The mice showed no bad health effects 6 months later. 
 

Breaking through the blood-brain barrier 

The biodegradable implant is made of glycine, an amino acid that’s also strongly piezoelectric, meaning it vibrates when subjected to an electrical current. To make it, researchers cultivated glycine crystals, shattered them into pieces, and finally used a process called electrospinning, which applies a high electrical voltage to the nanocrystals. 

Voltage flows to the implant via an external device. The resulting ultrasound causes the tightly adhered cells of the blood-brain barrier to vibrate, stretching them out and creating space for pores to form. 

“That allows in very tiny particles, including chemo drugs,” said Dr. Nguyen. 

His earlier biodegradable implant broke apart from the force, but the new glycine implant is more flexible, stable, and highly piezoelectric. It could be implanted after a patient has surgery to remove a brain tumor, to continue treating residual cancer cells. The implant dissolves harmlessly in the body over time, and doctors can control its lifespan. 
 

A new wave of uses for ultrasound 

Dr. Nguyen’s study builds on similar efforts, including a recent clinical trial of a nonbiodegradable implant for treating brain tumors. Ultrasound can focus energy on precise targets in the body.

It’s like “using a magnifying glass to focus multiple beams of light on a point and burn a hole in a leaf,” said Neal Kassell, MD, founder and chairman of the Focused Ultrasound Foundation. This approach spares adjacent normal tissue.  

Doctors now understand more than 30 ways that ultrasound interacts with tissue – from destroying abnormal tissue to delivering drugs more effectively to stimulating an immune response. A decade ago, only five such interactions were known.

This opens the door for treating “a wide spectrum of medical disorders,” from neurodegenerative diseases like Alzheimer’s and Parkinson’s to difficult-to-treat cancers of the prostate and pancreas, and even addiction, said Dr. Kassell. 

Dr. Kassell envisions using focused ultrasound to treat brain tumors as an alternative (or complement) to surgery, chemotherapy, immunotherapy, or radiation therapy. In the meantime, implants have helped show “the effectiveness of opening the blood-brain barrier.”

Dr. Nguyen’s team plans on testing the safety and efficacy of their implant in pigs next. Eventually, Dr. Nguyen hopes to develop a patch with an array of implants to target different areas of the brain. 

One study coauthor is cofounder of PiezoBioMembrane and SingleTimeMicroneedles. The other study authors reported no conflicts of interest.

A version of this article originally appeared on WebMD.com.

Scientists have developed a biodegradable implant that helps chemotherapy drugs penetrate the blood-brain barrier in mice and deliver a direct hit on brain tumors.

It’s the latest advance in a rapidly growing field using ultrasound – high-frequency sound waves undetectable to humans – to fight cancer and other diseases.

The problem addressed by the researchers is the blood-brain barrier, a nearly impenetrable blood vessel lining that keeps harmful molecules from passing into the brain from the blood. But this lining can also block chemo drugs from reaching cancer cells.

So the scientists implanted 1-cm² devices into the skulls of mice, directly behind the tumor site. The implants generate ultrasound waves, loosening the barrier and allowing the drugs to reach the tumor. The sound waves leave healthy tissue undamaged.

“You inject the drug into the body and turn on the ultrasound at the same time. You’re going to hit precisely at the tumor area every single time you use it,” said lead study author Thanh Nguyen, PhD, an associate professor of mechanical engineering at the University of Connecticut, Storrs.

The drug used in the study was paclitaxel, which normally struggles to get through the blood-brain barrier. The tumors shrank, and the mice doubled their lifetime, compared with untreated mice. The mice showed no bad health effects 6 months later. 
 

Breaking through the blood-brain barrier 

The biodegradable implant is made of glycine, an amino acid that’s also strongly piezoelectric, meaning it vibrates when subjected to an electrical current. To make it, researchers cultivated glycine crystals, shattered them into pieces, and finally used a process called electrospinning, which applies a high electrical voltage to the nanocrystals. 

Voltage flows to the implant via an external device. The resulting ultrasound causes the tightly adhered cells of the blood-brain barrier to vibrate, stretching them out and creating space for pores to form. 

“That allows in very tiny particles, including chemo drugs,” said Dr. Nguyen. 

His earlier biodegradable implant broke apart from the force, but the new glycine implant is more flexible, stable, and highly piezoelectric. It could be implanted after a patient has surgery to remove a brain tumor, to continue treating residual cancer cells. The implant dissolves harmlessly in the body over time, and doctors can control its lifespan. 
 

A new wave of uses for ultrasound 

Dr. Nguyen’s study builds on similar efforts, including a recent clinical trial of a nonbiodegradable implant for treating brain tumors. Ultrasound can focus energy on precise targets in the body.

It’s like “using a magnifying glass to focus multiple beams of light on a point and burn a hole in a leaf,” said Neal Kassell, MD, founder and chairman of the Focused Ultrasound Foundation. This approach spares adjacent normal tissue.  

Doctors now understand more than 30 ways that ultrasound interacts with tissue – from destroying abnormal tissue to delivering drugs more effectively to stimulating an immune response. A decade ago, only five such interactions were known.

This opens the door for treating “a wide spectrum of medical disorders,” from neurodegenerative diseases like Alzheimer’s and Parkinson’s to difficult-to-treat cancers of the prostate and pancreas, and even addiction, said Dr. Kassell. 

Dr. Kassell envisions using focused ultrasound to treat brain tumors as an alternative (or complement) to surgery, chemotherapy, immunotherapy, or radiation therapy. In the meantime, implants have helped show “the effectiveness of opening the blood-brain barrier.”

Dr. Nguyen’s team plans on testing the safety and efficacy of their implant in pigs next. Eventually, Dr. Nguyen hopes to develop a patch with an array of implants to target different areas of the brain. 

One study coauthor is cofounder of PiezoBioMembrane and SingleTimeMicroneedles. The other study authors reported no conflicts of interest.

A version of this article originally appeared on WebMD.com.

This transcript has been edited for clarity.

Welcome to Impact Factor, your weekly dose of commentary on a new medical study.

Basically, all cancers are caused by a mix of genetic and environmental factors, with some cancers driven more strongly by one or the other. When it comes to ovarian cancer, which kills more than 13,000 women per year in the United States, genetic factors like the BRCA gene mutations are well described.

Other risk factors, like early menarche and nulliparity, are difficult to modify. The only slam-dunk environmental toxin to be linked to ovarian cancer is asbestos. Still, the vast majority of women who develop ovarian cancer do not have a known high-risk gene or asbestos exposure, so other triggers may be out there. How do we find them? The answer may just be good old-fashioned epidemiology.

When you’re looking for a new culprit agent that causes a relatively rare disease, the case-control study design is your best friend.

That’s just what researchers, led by Anita Koushik at the University of Montreal, did in a new study appearing in the journal Occupational and Environmental Medicine.

They identified 497 women in Montreal who had recently been diagnosed with ovarian cancer. They then matched those women to 897 women without ovarian cancer, based on age and address. (This approach would not work well in the United States, as diagnosis of ovarian cancer might depend on access to medical care, which is not universal here. In Canada, however, it’s safer to assume that anyone who could have gotten ovarian cancer in Montreal would have been detected.)

Cases and controls identified, the researchers took a detailed occupational history for each participant: every job they ever worked, and when, and for how long. Each occupation was mapped to a standardized set of industries and, interestingly, to a set of environmental exposures ranging from cosmetic talc to cooking fumes to cotton dust, in what is known as a job-exposure matrix. Of course, they also collected data on other ovarian cancer risk factors.

Dr. F. Perry Wilson

Dr. F. Perry Wilson

F. Perry Wilson, MD, MSCE, is an associate professor of medicine and director of Yale University’s Clinical and Translational Research Accelerator in New Haven, Conn. He reported no conflicts of interest.

A version of this article first appeared on Medscape.com.

This transcript has been edited for clarity.

Welcome to Impact Factor, your weekly dose of commentary on a new medical study.

Basically, all cancers are caused by a mix of genetic and environmental factors, with some cancers driven more strongly by one or the other. When it comes to ovarian cancer, which kills more than 13,000 women per year in the United States, genetic factors like the BRCA gene mutations are well described.

Other risk factors, like early menarche and nulliparity, are difficult to modify. The only slam-dunk environmental toxin to be linked to ovarian cancer is asbestos. Still, the vast majority of women who develop ovarian cancer do not have a known high-risk gene or asbestos exposure, so other triggers may be out there. How do we find them? The answer may just be good old-fashioned epidemiology.

When you’re looking for a new culprit agent that causes a relatively rare disease, the case-control study design is your best friend.

That’s just what researchers, led by Anita Koushik at the University of Montreal, did in a new study appearing in the journal Occupational and Environmental Medicine.

They identified 497 women in Montreal who had recently been diagnosed with ovarian cancer. They then matched those women to 897 women without ovarian cancer, based on age and address. (This approach would not work well in the United States, as diagnosis of ovarian cancer might depend on access to medical care, which is not universal here. In Canada, however, it’s safer to assume that anyone who could have gotten ovarian cancer in Montreal would have been detected.)

Cases and controls identified, the researchers took a detailed occupational history for each participant: every job they ever worked, and when, and for how long. Each occupation was mapped to a standardized set of industries and, interestingly, to a set of environmental exposures ranging from cosmetic talc to cooking fumes to cotton dust, in what is known as a job-exposure matrix. Of course, they also collected data on other ovarian cancer risk factors.

Dr. F. Perry Wilson

Dr. F. Perry Wilson

F. Perry Wilson, MD, MSCE, is an associate professor of medicine and director of Yale University’s Clinical and Translational Research Accelerator in New Haven, Conn. He reported no conflicts of interest.

A version of this article first appeared on Medscape.com.

This transcript has been edited for clarity.

Welcome to Impact Factor, your weekly dose of commentary on a new medical study.

Basically, all cancers are caused by a mix of genetic and environmental factors, with some cancers driven more strongly by one or the other. When it comes to ovarian cancer, which kills more than 13,000 women per year in the United States, genetic factors like the BRCA gene mutations are well described.

Other risk factors, like early menarche and nulliparity, are difficult to modify. The only slam-dunk environmental toxin to be linked to ovarian cancer is asbestos. Still, the vast majority of women who develop ovarian cancer do not have a known high-risk gene or asbestos exposure, so other triggers may be out there. How do we find them? The answer may just be good old-fashioned epidemiology.

When you’re looking for a new culprit agent that causes a relatively rare disease, the case-control study design is your best friend.

That’s just what researchers, led by Anita Koushik at the University of Montreal, did in a new study appearing in the journal Occupational and Environmental Medicine.

They identified 497 women in Montreal who had recently been diagnosed with ovarian cancer. They then matched those women to 897 women without ovarian cancer, based on age and address. (This approach would not work well in the United States, as diagnosis of ovarian cancer might depend on access to medical care, which is not universal here. In Canada, however, it’s safer to assume that anyone who could have gotten ovarian cancer in Montreal would have been detected.)

Cases and controls identified, the researchers took a detailed occupational history for each participant: every job they ever worked, and when, and for how long. Each occupation was mapped to a standardized set of industries and, interestingly, to a set of environmental exposures ranging from cosmetic talc to cooking fumes to cotton dust, in what is known as a job-exposure matrix. Of course, they also collected data on other ovarian cancer risk factors.

Dr. F. Perry Wilson

Dr. F. Perry Wilson

F. Perry Wilson, MD, MSCE, is an associate professor of medicine and director of Yale University’s Clinical and Translational Research Accelerator in New Haven, Conn. He reported no conflicts of interest.

A version of this article first appeared on Medscape.com.

TOPLINE:

Higher levels of alcohol consumption appear to increase an individual’s risk of early-onset colorectal cancer (CRC), particularly distal colon and rectal cancers, according to a population-based study from South Korea.

METHODOLOGY:

• The investigators retrospectively compared average daily alcohol consumption with early-onset CRC risk among nearly 5.7 million adults younger than 50 years, using data from the Korean National Health Insurance Service.
• Alcohol consumption levels were defined as nondrinker, light (< 10 g/day or < 0.7 U.S. drinks/day), moderate (10-30 g/day for men, 10-20 g/day for women), and heavy (≥ 30 g/day or ≥ 2.1 drinks/day for men, ≥ 20 g/day or ≥ 1.4 drinks/day for women).
• The primary outcome was incidence of early-onset CRC diagnosed before age 50. Models were adjusted for age, sex, smoking status, exercise, and income, as well as for comorbidities.

TAKEAWAY:

• Overall, 8,314 incident early-onset CRC cases occurred during the mean follow-up period of 7.4 years.
• Compared with light drinking, moderate and heavy drinking were associated with a significantly elevated risk of early-onset CRC (adjusted hazard ratio, 1.09 and 1.20, respectively); by sex, significant associations were found only among men.
• Among men, heavy drinking vs. light drinking was associated with a 26% increased risk of distal colon cancer, a 17% higher risk of rectal cancer, and a 29% higher risk of unspecified colon cancer (but not proximal colon cancer).
• Among women, moderate drinking was associated with a 47% increased risk of distal colon cancer. Among nondrinkers, there was a 14% reduced risk of rectal cancer, compared with light drinkers.

IN PRACTICE:

“This population-based study provides evidence that higher levels of alcohol consumption may increase the risk of early-onset CRC,” the investigators concluded. “[E]ffective interventions are required to discourage alcohol consumption among young people and to tailor CRC screening approaches for high-risk individuals.”

SOURCE:

The study was led by researchers at Seoul National University, South Korea. It was published online in the Journal of Clinical Oncology.

LIMITATIONS:

Study limitations include self-reported alcohol consumption. Data were missing for a higher number of male participants and younger participants, and there was a potential problem related to multiple comparisons and confounders. Only Korean individuals were included in the study, so larger studies involving various races are needed.

DISCLOSURES:

Funding was provided by grants from the Korea Health Technology R&D Project and the Ministry of Health and Welfare, Republic of Korea. No potential conflicts of interest were reported.

A version of this article first appeared on Medscape.com.

TOPLINE:

Higher levels of alcohol consumption appear to increase an individual’s risk of early-onset colorectal cancer (CRC), particularly distal colon and rectal cancers, according to a population-based study from South Korea.

METHODOLOGY:

• The investigators retrospectively compared average daily alcohol consumption with early-onset CRC risk among nearly 5.7 million adults younger than 50 years, using data from the Korean National Health Insurance Service.
• Alcohol consumption levels were defined as nondrinker, light (< 10 g/day or < 0.7 U.S. drinks/day), moderate (10-30 g/day for men, 10-20 g/day for women), and heavy (≥ 30 g/day or ≥ 2.1 drinks/day for men, ≥ 20 g/day or ≥ 1.4 drinks/day for women).
• The primary outcome was incidence of early-onset CRC diagnosed before age 50. Models were adjusted for age, sex, smoking status, exercise, and income, as well as for comorbidities.

TAKEAWAY:

• Overall, 8,314 incident early-onset CRC cases occurred during the mean follow-up period of 7.4 years.
• Compared with light drinking, moderate and heavy drinking were associated with a significantly elevated risk of early-onset CRC (adjusted hazard ratio, 1.09 and 1.20, respectively); by sex, significant associations were found only among men.
• Among men, heavy drinking vs. light drinking was associated with a 26% increased risk of distal colon cancer, a 17% higher risk of rectal cancer, and a 29% higher risk of unspecified colon cancer (but not proximal colon cancer).
• Among women, moderate drinking was associated with a 47% increased risk of distal colon cancer. Among nondrinkers, there was a 14% reduced risk of rectal cancer, compared with light drinkers.

IN PRACTICE:

“This population-based study provides evidence that higher levels of alcohol consumption may increase the risk of early-onset CRC,” the investigators concluded. “[E]ffective interventions are required to discourage alcohol consumption among young people and to tailor CRC screening approaches for high-risk individuals.”

SOURCE:

The study was led by researchers at Seoul National University, South Korea. It was published online in the Journal of Clinical Oncology.

LIMITATIONS:

Study limitations include self-reported alcohol consumption. Data were missing for a higher number of male participants and younger participants, and there was a potential problem related to multiple comparisons and confounders. Only Korean individuals were included in the study, so larger studies involving various races are needed.

DISCLOSURES:

Funding was provided by grants from the Korea Health Technology R&D Project and the Ministry of Health and Welfare, Republic of Korea. No potential conflicts of interest were reported.

A version of this article first appeared on Medscape.com.

TOPLINE:

Higher levels of alcohol consumption appear to increase an individual’s risk of early-onset colorectal cancer (CRC), particularly distal colon and rectal cancers, according to a population-based study from South Korea.

METHODOLOGY:

• The investigators retrospectively compared average daily alcohol consumption with early-onset CRC risk among nearly 5.7 million adults younger than 50 years, using data from the Korean National Health Insurance Service.
• Alcohol consumption levels were defined as nondrinker, light (< 10 g/day or < 0.7 U.S. drinks/day), moderate (10-30 g/day for men, 10-20 g/day for women), and heavy (≥ 30 g/day or ≥ 2.1 drinks/day for men, ≥ 20 g/day or ≥ 1.4 drinks/day for women).
• The primary outcome was incidence of early-onset CRC diagnosed before age 50. Models were adjusted for age, sex, smoking status, exercise, and income, as well as for comorbidities.

TAKEAWAY:

• Overall, 8,314 incident early-onset CRC cases occurred during the mean follow-up period of 7.4 years.
• Compared with light drinking, moderate and heavy drinking were associated with a significantly elevated risk of early-onset CRC (adjusted hazard ratio, 1.09 and 1.20, respectively); by sex, significant associations were found only among men.
• Among men, heavy drinking vs. light drinking was associated with a 26% increased risk of distal colon cancer, a 17% higher risk of rectal cancer, and a 29% higher risk of unspecified colon cancer (but not proximal colon cancer).
• Among women, moderate drinking was associated with a 47% increased risk of distal colon cancer. Among nondrinkers, there was a 14% reduced risk of rectal cancer, compared with light drinkers.

IN PRACTICE:

“This population-based study provides evidence that higher levels of alcohol consumption may increase the risk of early-onset CRC,” the investigators concluded. “[E]ffective interventions are required to discourage alcohol consumption among young people and to tailor CRC screening approaches for high-risk individuals.”

SOURCE:

The study was led by researchers at Seoul National University, South Korea. It was published online in the Journal of Clinical Oncology.

LIMITATIONS:

Study limitations include self-reported alcohol consumption. Data were missing for a higher number of male participants and younger participants, and there was a potential problem related to multiple comparisons and confounders. Only Korean individuals were included in the study, so larger studies involving various races are needed.

DISCLOSURES:

Funding was provided by grants from the Korea Health Technology R&D Project and the Ministry of Health and Welfare, Republic of Korea. No potential conflicts of interest were reported.

A version of this article first appeared on Medscape.com.

TOPLINE:

Higher levels of cardiorespiratory fitness (CRF) may offer protection from colon and lung cancer and from lung and prostate cancer mortality among men, a large Swedish cohort study suggests.

METHODOLOGY:

• A prospective cohort study included 177,709 Swedish men (mean age, 42; mean body mass index, 26 kg/m²) who completed an occupational health profile assessment and were followed for a mean of 9.6 years.
• CRF was assessed by determining maximal oxygen consumption during an aerobic fitness test, known as a submaximal Åstrand cycle ergometer test.
• Participants reported physical activity habits, lifestyle, and perceived health.
• Data on prostate, colon, and lung cancer incidence and mortality were derived from national registers.
• Outcomes from three higher CRF groups (low, > 25-35; moderate, > 35-45; high, > 45 mL/min per kg) were compared with those from the very low CRF group (25 mL/min per kg or less). Models were adjusted for various factors, including age, BMI, education, dietary habits, comorbidity, and smoking.

TAKEAWAY:

• During follow-up, investigators identified 1,918 prostate, 499 colon, and 283 lung cancer cases as well as 141 prostate, 207 lung, and 152 colon cancer deaths.
• In the fully adjusted model, higher CRF levels were associated with a significantly lower risk for colon cancer (hazard ratio, 0.72 for moderate; HR, 0.63 for high).
• In this model, higher CRF was also associated with a lower risk of death from prostate cancer (HR, 0.67 for low; HR, 0.57 for moderate; HR, 0.29 for high).
• For lung cancer mortality, only high CRF was associated with a significantly lower risk of death (HR, 0.41).
• An association between CRF and lung cancer incidence (HR, 0.99) and death (HR, 0.99) was only evident among adults aged 60 and older.

IN PRACTICE:

“The clinical implications of these findings further emphasize the importance of CRF for possibly reducing cancer incidence and mortality,” the authors concluded. “It is important for the general public to understand that higher-intensity [physical activity] has greater effects on CRF and is likely to be more protective against the risk of developing and dying from certain cancers.”

SOURCE:

The study was led by Elin Ekblom-Bak, PhD, from the Swedish School of Sport and Health Sciences, Stockholm. It was published online in JAMA Network Open.

LIMITATIONS:

The study was limited by voluntary participation, inclusion of only employed individuals, and estimations of CRF via submaximal tests. Data on smoking status were not optimal and there was a small number of cancer cases and deaths.

DISCLOSURES:

Funding was provided by the Swedish Cancer Society. The authors have reported no conflicts of interest.

A version of this article first appeared on Medscape.com.

TOPLINE:

Higher levels of cardiorespiratory fitness (CRF) may offer protection from colon and lung cancer and from lung and prostate cancer mortality among men, a large Swedish cohort study suggests.

METHODOLOGY:

• A prospective cohort study included 177,709 Swedish men (mean age, 42; mean body mass index, 26 kg/m²) who completed an occupational health profile assessment and were followed for a mean of 9.6 years.
• CRF was assessed by determining maximal oxygen consumption during an aerobic fitness test, known as a submaximal Åstrand cycle ergometer test.
• Participants reported physical activity habits, lifestyle, and perceived health.
• Data on prostate, colon, and lung cancer incidence and mortality were derived from national registers.
• Outcomes from three higher CRF groups (low, > 25-35; moderate, > 35-45; high, > 45 mL/min per kg) were compared with those from the very low CRF group (25 mL/min per kg or less). Models were adjusted for various factors, including age, BMI, education, dietary habits, comorbidity, and smoking.

TAKEAWAY:

• During follow-up, investigators identified 1,918 prostate, 499 colon, and 283 lung cancer cases as well as 141 prostate, 207 lung, and 152 colon cancer deaths.
• In the fully adjusted model, higher CRF levels were associated with a significantly lower risk for colon cancer (hazard ratio, 0.72 for moderate; HR, 0.63 for high).
• In this model, higher CRF was also associated with a lower risk of death from prostate cancer (HR, 0.67 for low; HR, 0.57 for moderate; HR, 0.29 for high).
• For lung cancer mortality, only high CRF was associated with a significantly lower risk of death (HR, 0.41).
• An association between CRF and lung cancer incidence (HR, 0.99) and death (HR, 0.99) was only evident among adults aged 60 and older.

IN PRACTICE:

“The clinical implications of these findings further emphasize the importance of CRF for possibly reducing cancer incidence and mortality,” the authors concluded. “It is important for the general public to understand that higher-intensity [physical activity] has greater effects on CRF and is likely to be more protective against the risk of developing and dying from certain cancers.”

SOURCE:

The study was led by Elin Ekblom-Bak, PhD, from the Swedish School of Sport and Health Sciences, Stockholm. It was published online in JAMA Network Open.

LIMITATIONS:

The study was limited by voluntary participation, inclusion of only employed individuals, and estimations of CRF via submaximal tests. Data on smoking status were not optimal and there was a small number of cancer cases and deaths.

DISCLOSURES:

Funding was provided by the Swedish Cancer Society. The authors have reported no conflicts of interest.

A version of this article first appeared on Medscape.com.

TOPLINE:

Higher levels of cardiorespiratory fitness (CRF) may offer protection from colon and lung cancer and from lung and prostate cancer mortality among men, a large Swedish cohort study suggests.

METHODOLOGY:

• A prospective cohort study included 177,709 Swedish men (mean age, 42; mean body mass index, 26 kg/m²) who completed an occupational health profile assessment and were followed for a mean of 9.6 years.
• CRF was assessed by determining maximal oxygen consumption during an aerobic fitness test, known as a submaximal Åstrand cycle ergometer test.
• Participants reported physical activity habits, lifestyle, and perceived health.
• Data on prostate, colon, and lung cancer incidence and mortality were derived from national registers.
• Outcomes from three higher CRF groups (low, > 25-35; moderate, > 35-45; high, > 45 mL/min per kg) were compared with those from the very low CRF group (25 mL/min per kg or less). Models were adjusted for various factors, including age, BMI, education, dietary habits, comorbidity, and smoking.

TAKEAWAY:

• During follow-up, investigators identified 1,918 prostate, 499 colon, and 283 lung cancer cases as well as 141 prostate, 207 lung, and 152 colon cancer deaths.
• In the fully adjusted model, higher CRF levels were associated with a significantly lower risk for colon cancer (hazard ratio, 0.72 for moderate; HR, 0.63 for high).
• In this model, higher CRF was also associated with a lower risk of death from prostate cancer (HR, 0.67 for low; HR, 0.57 for moderate; HR, 0.29 for high).
• For lung cancer mortality, only high CRF was associated with a significantly lower risk of death (HR, 0.41).
• An association between CRF and lung cancer incidence (HR, 0.99) and death (HR, 0.99) was only evident among adults aged 60 and older.

IN PRACTICE:

“The clinical implications of these findings further emphasize the importance of CRF for possibly reducing cancer incidence and mortality,” the authors concluded. “It is important for the general public to understand that higher-intensity [physical activity] has greater effects on CRF and is likely to be more protective against the risk of developing and dying from certain cancers.”

SOURCE:

The study was led by Elin Ekblom-Bak, PhD, from the Swedish School of Sport and Health Sciences, Stockholm. It was published online in JAMA Network Open.

LIMITATIONS:

The study was limited by voluntary participation, inclusion of only employed individuals, and estimations of CRF via submaximal tests. Data on smoking status were not optimal and there was a small number of cancer cases and deaths.

DISCLOSURES:

Funding was provided by the Swedish Cancer Society. The authors have reported no conflicts of interest.

A version of this article first appeared on Medscape.com.

TOPLINE:

Pembrolizumab doesn’t work as well for patients with metastatic non–small cell lung cancer (NSCLC) who have diabetes.

METHODOLOGY:

• Investigators reviewed the medical records of 203 consecutive patients with metastatic NSCLC who received first-line pembrolizumab either alone or in combination with chemotherapy at a single tertiary center in Israel.
• Overall, 1 in 4 patients (n = 51) had diabetes mellitus; most (n = 42) were being treated with oral hypoglycemic agents, frequently metformin, and 7 were taking insulin.
• Rates of tumors with PD‐L1 expression above 50% were not significantly different among patients with diabetes and those without.

TAKEAWAY:

• Overall, among patients with diabetes, median progression-free survival (PFS) was significantly shorter than among patients without diabetes (5.9 vs. 7.1 months), as was overall survival (12 vs. 21 months).
• Shorter overall survival was more pronounced among those with diabetes who received pembrolizumab alone (12 vs. 27 months) in comparison with patients who received pembrolizumab plus chemotherapy (14.3 vs. 19.4 months).
• After adjusting for potential confounders, multivariate analysis confirmed that diabetes was an independent risk factor for shorter PFS (hazard ratio, 1.67) and shorter overall survival (HR, 1.73) for patients with NSCLC.
• In a validation cohort of 452 patients with metastatic NSCLC, only 19.6% of those with diabetes continued to take pembrolizumab at 12 months versus 31.7% of those without diabetes.

IN PRACTICE:

“As NSCLC patients with [diabetes] constitute a significant subgroup, there is an urgent need to validate our findings and explore whether outcomes in these patients can be improved by better glycemic control,” the authors said, adding that “chemotherapy may offset some of the deleterious effects” of diabetes.

SOURCE:

The study was led by Yasmin Leshem, MD, PhD, of the Tel Aviv Sourasky Medical Center, and was published in Cancer.

LIMITATIONS:

• Without access to blood test results outside the hospital, the researchers could not determine whether better glycemic control might have improved outcomes.
• The incidence of type 1 or 2 diabetes was not well documented.

DISCLOSURES:

• No funding source was reported.
• Two investigators reported receiving consulting and/or other fees from Bristol-Myers Squibb, Roche, Merck, Novartis, and Merck Sharp and Dohme.

A version of this article first appeared on Medscape.com.

TOPLINE:

Pembrolizumab doesn’t work as well for patients with metastatic non–small cell lung cancer (NSCLC) who have diabetes.

METHODOLOGY:

• Investigators reviewed the medical records of 203 consecutive patients with metastatic NSCLC who received first-line pembrolizumab either alone or in combination with chemotherapy at a single tertiary center in Israel.
• Overall, 1 in 4 patients (n = 51) had diabetes mellitus; most (n = 42) were being treated with oral hypoglycemic agents, frequently metformin, and 7 were taking insulin.
• Rates of tumors with PD‐L1 expression above 50% were not significantly different among patients with diabetes and those without.

TAKEAWAY:

• Overall, among patients with diabetes, median progression-free survival (PFS) was significantly shorter than among patients without diabetes (5.9 vs. 7.1 months), as was overall survival (12 vs. 21 months).
• Shorter overall survival was more pronounced among those with diabetes who received pembrolizumab alone (12 vs. 27 months) in comparison with patients who received pembrolizumab plus chemotherapy (14.3 vs. 19.4 months).
• After adjusting for potential confounders, multivariate analysis confirmed that diabetes was an independent risk factor for shorter PFS (hazard ratio, 1.67) and shorter overall survival (HR, 1.73) for patients with NSCLC.
• In a validation cohort of 452 patients with metastatic NSCLC, only 19.6% of those with diabetes continued to take pembrolizumab at 12 months versus 31.7% of those without diabetes.

IN PRACTICE:

“As NSCLC patients with [diabetes] constitute a significant subgroup, there is an urgent need to validate our findings and explore whether outcomes in these patients can be improved by better glycemic control,” the authors said, adding that “chemotherapy may offset some of the deleterious effects” of diabetes.

SOURCE:

The study was led by Yasmin Leshem, MD, PhD, of the Tel Aviv Sourasky Medical Center, and was published in Cancer.

LIMITATIONS:

• Without access to blood test results outside the hospital, the researchers could not determine whether better glycemic control might have improved outcomes.
• The incidence of type 1 or 2 diabetes was not well documented.

DISCLOSURES:

• No funding source was reported.
• Two investigators reported receiving consulting and/or other fees from Bristol-Myers Squibb, Roche, Merck, Novartis, and Merck Sharp and Dohme.

A version of this article first appeared on Medscape.com.

TOPLINE:

Pembrolizumab doesn’t work as well for patients with metastatic non–small cell lung cancer (NSCLC) who have diabetes.

METHODOLOGY:

• Investigators reviewed the medical records of 203 consecutive patients with metastatic NSCLC who received first-line pembrolizumab either alone or in combination with chemotherapy at a single tertiary center in Israel.
• Overall, 1 in 4 patients (n = 51) had diabetes mellitus; most (n = 42) were being treated with oral hypoglycemic agents, frequently metformin, and 7 were taking insulin.
• Rates of tumors with PD‐L1 expression above 50% were not significantly different among patients with diabetes and those without.

TAKEAWAY:

• Overall, among patients with diabetes, median progression-free survival (PFS) was significantly shorter than among patients without diabetes (5.9 vs. 7.1 months), as was overall survival (12 vs. 21 months).
• Shorter overall survival was more pronounced among those with diabetes who received pembrolizumab alone (12 vs. 27 months) in comparison with patients who received pembrolizumab plus chemotherapy (14.3 vs. 19.4 months).
• After adjusting for potential confounders, multivariate analysis confirmed that diabetes was an independent risk factor for shorter PFS (hazard ratio, 1.67) and shorter overall survival (HR, 1.73) for patients with NSCLC.
• In a validation cohort of 452 patients with metastatic NSCLC, only 19.6% of those with diabetes continued to take pembrolizumab at 12 months versus 31.7% of those without diabetes.

IN PRACTICE:

“As NSCLC patients with [diabetes] constitute a significant subgroup, there is an urgent need to validate our findings and explore whether outcomes in these patients can be improved by better glycemic control,” the authors said, adding that “chemotherapy may offset some of the deleterious effects” of diabetes.

SOURCE:

The study was led by Yasmin Leshem, MD, PhD, of the Tel Aviv Sourasky Medical Center, and was published in Cancer.

LIMITATIONS:

• Without access to blood test results outside the hospital, the researchers could not determine whether better glycemic control might have improved outcomes.
• The incidence of type 1 or 2 diabetes was not well documented.

DISCLOSURES:

• No funding source was reported.
• Two investigators reported receiving consulting and/or other fees from Bristol-Myers Squibb, Roche, Merck, Novartis, and Merck Sharp and Dohme.

A version of this article first appeared on Medscape.com.

TOPLINE:

Adults receiving cancer treatment who use cannabis perceived benefits regarding pain, sleep, nausea, and other factors but also reported worse physical and psychological symptoms.

METHODOLOGY:

• Participants included 267 adults (mean age, 58 years; 70% women; 88% White) undergoing treatment for cancer, most commonly breast (47%) and ovarian (29%).
• Participants completed online surveys to characterize cannabis use, reasons for using it, perceived benefits and harms, and physical/psychological symptoms.
• Participants who had used cannabis for more than 1 day during the previous 30 days were compared with those who had not.

TAKEAWAY:

• Overall, 26% of respondents reported cannabis use in the past 30 days, most often edibles (65%) or smoked cannabis (51%).
• Cannabis users were more likely to be younger, male, Black, to have lower income, worse physical/psychological symptoms, and to be disabled or unable to work in comparison with nonusers.
• Cannabis was used to treat pain, cancer, sleep problems, anxiety, nausea, and poor appetite; perceived benefits were greatest with respect to sleep, nausea, pain, muscle spasms, and anxiety.
• Despite perceived benefits, cannabis users reported worse overall distress, anxiety, sleep disturbances, appetite, nausea, fatigue, and pain.

IN PRACTICE:

“The study findings indicate that patients with cancer perceived benefits to using cannabis for many symptoms” but also revealed that “those who used cannabis in the past 30 days had significantly worse symptom profiles overall than those who did not use cannabis,” the authors wrote.

SOURCE:

The study, led by Desiree R. Azizoddin, PsyD, University of Oklahoma Health Science Center, Oklahoma City, was published online in Cancer.

LIMITATIONS:

It’s not known whether adults who used cannabis had significantly worse symptoms at the outset, which may have prompted cannabis use, or whether cannabis use may have exacerbated their symptoms.

DISCLOSURES:

Funding for the study was provided by grants from the National Cancer Institute and the Oklahoma Tobacco Settlement Endowment Trust. Nine of the 10 authors have disclosed no relevant conflicts of interest. One author has relationships with various pharmaceutical companies involved in oncology.

A version of this article first appeared on Medscape.com.

TOPLINE:

Adults receiving cancer treatment who use cannabis perceived benefits regarding pain, sleep, nausea, and other factors but also reported worse physical and psychological symptoms.

METHODOLOGY:

• Participants included 267 adults (mean age, 58 years; 70% women; 88% White) undergoing treatment for cancer, most commonly breast (47%) and ovarian (29%).
• Participants completed online surveys to characterize cannabis use, reasons for using it, perceived benefits and harms, and physical/psychological symptoms.
• Participants who had used cannabis for more than 1 day during the previous 30 days were compared with those who had not.

TAKEAWAY:

• Overall, 26% of respondents reported cannabis use in the past 30 days, most often edibles (65%) or smoked cannabis (51%).
• Cannabis users were more likely to be younger, male, Black, to have lower income, worse physical/psychological symptoms, and to be disabled or unable to work in comparison with nonusers.
• Cannabis was used to treat pain, cancer, sleep problems, anxiety, nausea, and poor appetite; perceived benefits were greatest with respect to sleep, nausea, pain, muscle spasms, and anxiety.
• Despite perceived benefits, cannabis users reported worse overall distress, anxiety, sleep disturbances, appetite, nausea, fatigue, and pain.

IN PRACTICE:

“The study findings indicate that patients with cancer perceived benefits to using cannabis for many symptoms” but also revealed that “those who used cannabis in the past 30 days had significantly worse symptom profiles overall than those who did not use cannabis,” the authors wrote.

SOURCE:

The study, led by Desiree R. Azizoddin, PsyD, University of Oklahoma Health Science Center, Oklahoma City, was published online in Cancer.

LIMITATIONS:

It’s not known whether adults who used cannabis had significantly worse symptoms at the outset, which may have prompted cannabis use, or whether cannabis use may have exacerbated their symptoms.

DISCLOSURES:

Funding for the study was provided by grants from the National Cancer Institute and the Oklahoma Tobacco Settlement Endowment Trust. Nine of the 10 authors have disclosed no relevant conflicts of interest. One author has relationships with various pharmaceutical companies involved in oncology.

A version of this article first appeared on Medscape.com.

TOPLINE:

Adults receiving cancer treatment who use cannabis perceived benefits regarding pain, sleep, nausea, and other factors but also reported worse physical and psychological symptoms.

METHODOLOGY:

• Participants included 267 adults (mean age, 58 years; 70% women; 88% White) undergoing treatment for cancer, most commonly breast (47%) and ovarian (29%).
• Participants completed online surveys to characterize cannabis use, reasons for using it, perceived benefits and harms, and physical/psychological symptoms.
• Participants who had used cannabis for more than 1 day during the previous 30 days were compared with those who had not.

TAKEAWAY:

• Overall, 26% of respondents reported cannabis use in the past 30 days, most often edibles (65%) or smoked cannabis (51%).
• Cannabis users were more likely to be younger, male, Black, to have lower income, worse physical/psychological symptoms, and to be disabled or unable to work in comparison with nonusers.
• Cannabis was used to treat pain, cancer, sleep problems, anxiety, nausea, and poor appetite; perceived benefits were greatest with respect to sleep, nausea, pain, muscle spasms, and anxiety.
• Despite perceived benefits, cannabis users reported worse overall distress, anxiety, sleep disturbances, appetite, nausea, fatigue, and pain.

IN PRACTICE:

“The study findings indicate that patients with cancer perceived benefits to using cannabis for many symptoms” but also revealed that “those who used cannabis in the past 30 days had significantly worse symptom profiles overall than those who did not use cannabis,” the authors wrote.

SOURCE:

The study, led by Desiree R. Azizoddin, PsyD, University of Oklahoma Health Science Center, Oklahoma City, was published online in Cancer.

LIMITATIONS:

It’s not known whether adults who used cannabis had significantly worse symptoms at the outset, which may have prompted cannabis use, or whether cannabis use may have exacerbated their symptoms.

DISCLOSURES:

Funding for the study was provided by grants from the National Cancer Institute and the Oklahoma Tobacco Settlement Endowment Trust. Nine of the 10 authors have disclosed no relevant conflicts of interest. One author has relationships with various pharmaceutical companies involved in oncology.

A version of this article first appeared on Medscape.com.

Federal Practitioner and the Association of VA Hematology/Oncology (AVAHO) present the 2023 edition of Cancer Data Trends (click to view the digital edition). This special issue provides updates on some of the top cancers and related concerns affecting veterans through original infographics and visual storytelling.

In this issue:

• COVID-19 Outcomes in Veterans With Hematologic Cancers
• Promising New Approaches for Testicular and Prostate Cancer
• Screening Guideline Updates and New Treatments in Colon Cancer
• Exposure-Related Cancers: A Look at the PACT Act
• New Classifications and Emerging Treatments in Brain Cancer
• Gender Disparity in Breast Cancer Among US Veterans
• Lung Cancer Screening in Veterans
• Necessary Updates to Skin Cancer Risk Stratification
• Innovation in Cancer Treatment

Federal Practitioner and the Association of VA Hematology/Oncology (AVAHO) present the 2023 edition of Cancer Data Trends (click to view the digital edition). This special issue provides updates on some of the top cancers and related concerns affecting veterans through original infographics and visual storytelling.

In this issue:

• COVID-19 Outcomes in Veterans With Hematologic Cancers
• Promising New Approaches for Testicular and Prostate Cancer
• Screening Guideline Updates and New Treatments in Colon Cancer
• Exposure-Related Cancers: A Look at the PACT Act
• New Classifications and Emerging Treatments in Brain Cancer
• Gender Disparity in Breast Cancer Among US Veterans
• Lung Cancer Screening in Veterans
• Necessary Updates to Skin Cancer Risk Stratification
• Innovation in Cancer Treatment

Federal Practitioner and the Association of VA Hematology/Oncology (AVAHO) present the 2023 edition of Cancer Data Trends (click to view the digital edition). This special issue provides updates on some of the top cancers and related concerns affecting veterans through original infographics and visual storytelling.

In this issue:

• COVID-19 Outcomes in Veterans With Hematologic Cancers
• Promising New Approaches for Testicular and Prostate Cancer
• Screening Guideline Updates and New Treatments in Colon Cancer
• Exposure-Related Cancers: A Look at the PACT Act
• New Classifications and Emerging Treatments in Brain Cancer
• Gender Disparity in Breast Cancer Among US Veterans
• Lung Cancer Screening in Veterans
• Necessary Updates to Skin Cancer Risk Stratification
• Innovation in Cancer Treatment

Click to view more from Cancer Data Trends 2023.

Click to view more from Cancer Data Trends 2023.

Click to view more from Cancer Data Trends 2023.

Interim follow-up data from the A041702 phase-3 clinical trial presented at the annual meeting of the American Society of Clinical Oncology (ASCO) in Chicago (June 2-6) indicates that the addition of venetoclax (V) to ibrutinib + obinutuzumab (IO) to treat chronic lymphocytic leukemia (CLL) does not increase short- or medium-term progression-free survival (PFS) in older patients. The difference in PFS between the IVO arm, 85%, versus 87% in the IO arm was statistically insignificant.

“Due to the early read-out and the futility boundaries being crossed, long-term follow-up will be critical to understand if there are any long-term benefits to IVO,” said study principal investigator Jennifer A. Woyach MD, professor in the division of hematology at The Ohio State University Comprehensive Care Center (OSUCCC – The James) in Columbus.

The Ohio State University Comprehensive Care Center

The 14-month follow-up data includes results from 465 CLL patients aged 65+ (median age 74 years, 67.5% male) who were treatment naive. The IO and IVO arms had 232 and 233 participants respectively, patients across both arms had Eastern Cooperative Oncology Group scores of 0-1 (97%), occurrence of Del (17p) was 13%, and a Rai stage status of III/IV was 55%, slightly more patients in the IO arm had unmutated IGHV 55% vs. 47% in the IVO arm. Researchers noted that, as expected, patients in the IVO group had a greater occurrence of hematologic adverse events graded at 3 or above, 61% VS 48% in the IO arm, P =.006.

The trial was spurred by the fact that many CLL patients on IO therapy must remain on treatment indefinitely, and an earlier phase II trial suggested that IVO therapy could lead to deep remission and therapy discontinuation.

Looking at the complete response (CR) rates and undetectable minimal residual disease (uMRD) rates across both arms suggested that there may be some hope that IVO could help CLL patients achieve deep remissions and discontinue therapy. Patients in the IVO arm had a CR of 68.5% and uMRD of 86.8% while only 31.3% of those in the IO arm had a CR and 33.3% achieved uMRD status.

“Despite the impressive CR and uMRD results, this study demonstrates that IVO is not superior to IO in terms of progression-free survival. However, because many patients in the IVO arm have discontinued treatment while those in the IO arm remain on ibrutinib, we think that it will be very important to continue to follow these patients long term, to see if there are advantages to this time limited therapy, especially in terms of toxicity, that we cannot appreciate with this follow-up,” said Dr. Woyach.

The Alliance for Clinical Trials in Oncology cooperative group, including OSUCCC James, is currently working to design the next frontline CLL study for older patients that builds on this work.

Dr. Woyach disclosed ties with Abbvie, AstraZeneca, Beigene, Genentech, Janssen, Loxo/Lilly, Merck, Newave, Pharmacyclics, and Schrodinger.

Interim follow-up data from the A041702 phase-3 clinical trial presented at the annual meeting of the American Society of Clinical Oncology (ASCO) in Chicago (June 2-6) indicates that the addition of venetoclax (V) to ibrutinib + obinutuzumab (IO) to treat chronic lymphocytic leukemia (CLL) does not increase short- or medium-term progression-free survival (PFS) in older patients. The difference in PFS between the IVO arm, 85%, versus 87% in the IO arm was statistically insignificant.

“Due to the early read-out and the futility boundaries being crossed, long-term follow-up will be critical to understand if there are any long-term benefits to IVO,” said study principal investigator Jennifer A. Woyach MD, professor in the division of hematology at The Ohio State University Comprehensive Care Center (OSUCCC – The James) in Columbus.

The Ohio State University Comprehensive Care Center

The 14-month follow-up data includes results from 465 CLL patients aged 65+ (median age 74 years, 67.5% male) who were treatment naive. The IO and IVO arms had 232 and 233 participants respectively, patients across both arms had Eastern Cooperative Oncology Group scores of 0-1 (97%), occurrence of Del (17p) was 13%, and a Rai stage status of III/IV was 55%, slightly more patients in the IO arm had unmutated IGHV 55% vs. 47% in the IVO arm. Researchers noted that, as expected, patients in the IVO group had a greater occurrence of hematologic adverse events graded at 3 or above, 61% VS 48% in the IO arm, P =.006.

The trial was spurred by the fact that many CLL patients on IO therapy must remain on treatment indefinitely, and an earlier phase II trial suggested that IVO therapy could lead to deep remission and therapy discontinuation.

Looking at the complete response (CR) rates and undetectable minimal residual disease (uMRD) rates across both arms suggested that there may be some hope that IVO could help CLL patients achieve deep remissions and discontinue therapy. Patients in the IVO arm had a CR of 68.5% and uMRD of 86.8% while only 31.3% of those in the IO arm had a CR and 33.3% achieved uMRD status.

“Despite the impressive CR and uMRD results, this study demonstrates that IVO is not superior to IO in terms of progression-free survival. However, because many patients in the IVO arm have discontinued treatment while those in the IO arm remain on ibrutinib, we think that it will be very important to continue to follow these patients long term, to see if there are advantages to this time limited therapy, especially in terms of toxicity, that we cannot appreciate with this follow-up,” said Dr. Woyach.

The Alliance for Clinical Trials in Oncology cooperative group, including OSUCCC James, is currently working to design the next frontline CLL study for older patients that builds on this work.

Dr. Woyach disclosed ties with Abbvie, AstraZeneca, Beigene, Genentech, Janssen, Loxo/Lilly, Merck, Newave, Pharmacyclics, and Schrodinger.

Interim follow-up data from the A041702 phase-3 clinical trial presented at the annual meeting of the American Society of Clinical Oncology (ASCO) in Chicago (June 2-6) indicates that the addition of venetoclax (V) to ibrutinib + obinutuzumab (IO) to treat chronic lymphocytic leukemia (CLL) does not increase short- or medium-term progression-free survival (PFS) in older patients. The difference in PFS between the IVO arm, 85%, versus 87% in the IO arm was statistically insignificant.

“Due to the early read-out and the futility boundaries being crossed, long-term follow-up will be critical to understand if there are any long-term benefits to IVO,” said study principal investigator Jennifer A. Woyach MD, professor in the division of hematology at The Ohio State University Comprehensive Care Center (OSUCCC – The James) in Columbus.

The Ohio State University Comprehensive Care Center

The 14-month follow-up data includes results from 465 CLL patients aged 65+ (median age 74 years, 67.5% male) who were treatment naive. The IO and IVO arms had 232 and 233 participants respectively, patients across both arms had Eastern Cooperative Oncology Group scores of 0-1 (97%), occurrence of Del (17p) was 13%, and a Rai stage status of III/IV was 55%, slightly more patients in the IO arm had unmutated IGHV 55% vs. 47% in the IVO arm. Researchers noted that, as expected, patients in the IVO group had a greater occurrence of hematologic adverse events graded at 3 or above, 61% VS 48% in the IO arm, P =.006.

The trial was spurred by the fact that many CLL patients on IO therapy must remain on treatment indefinitely, and an earlier phase II trial suggested that IVO therapy could lead to deep remission and therapy discontinuation.

Looking at the complete response (CR) rates and undetectable minimal residual disease (uMRD) rates across both arms suggested that there may be some hope that IVO could help CLL patients achieve deep remissions and discontinue therapy. Patients in the IVO arm had a CR of 68.5% and uMRD of 86.8% while only 31.3% of those in the IO arm had a CR and 33.3% achieved uMRD status.

“Despite the impressive CR and uMRD results, this study demonstrates that IVO is not superior to IO in terms of progression-free survival. However, because many patients in the IVO arm have discontinued treatment while those in the IO arm remain on ibrutinib, we think that it will be very important to continue to follow these patients long term, to see if there are advantages to this time limited therapy, especially in terms of toxicity, that we cannot appreciate with this follow-up,” said Dr. Woyach.

The Alliance for Clinical Trials in Oncology cooperative group, including OSUCCC James, is currently working to design the next frontline CLL study for older patients that builds on this work.

Dr. Woyach disclosed ties with Abbvie, AstraZeneca, Beigene, Genentech, Janssen, Loxo/Lilly, Merck, Newave, Pharmacyclics, and Schrodinger.

The Food and Drug Administration approved the gene therapy valoctocogene roxaparvovec (Roctavian, BioMarin) for adults with severe hemophilia A.

Valoctocogene roxaparvovec, a one-time, single-dose IV infusion, is the first gene therapy approved in the United States for severe hemophilia A and will cost around $2.9 million. BioMarin has said the price tag reflects “the possibility of freedom from years” of infusions, which come to about $800,000 each year.

However, last December, the Institute for Clinical and Economic Review (ICER) set the upper bounds for the gene therapy at about $1.96 million. The extent to which the gene therapy will provide freedom from infusions, for how long, and in which patients are not completely understood.

Hemophilia A is caused by a mutation in the gene that produces a protein called coagulation factor VIII, which is essential for blood clotting. Valoctocogene roxaparvovec delivers a functional gene to liver cells via an adeno-associated virus serotype 5; the gene instructs the cells to make the missing clotting factor.

“Adults with severe hemophilia A face a lifelong burden, with frequent infusions and a high risk of health complications, including uncontrolled bleeding and irreversible joint damage,” Steven Pipe, MD, professor of pediatrics and pathology at the University of Michigan, Ann Arbor, and an investigator for the phase 3 study that led to the approval, said in a statement. The approval of valoctocogene roxaparvovec “has the potential to transform the way we treat adults based on years of bleed control following a single, one-time infusion.”

About 6,500 U.S. adults live with severe hemophilia A, and BioMarin said it anticipates approximately 2,500 will be eligible to receive the gene therapy following the approval. The U.S. indication is limited to patients without a history of factor VIII inhibitors and without detectable antibodies to the adeno-associated virus serotype 5.

Last August, the European Medicines Agency authorized the gene therapy for use in Europe, but according to Forbes and PharmaPhorum, uptake in Europe has been delayed because of reimbursement issues, given the cost of treatment and clinical uncertainties.

Data to date, however, are promising for most patients. Approval was based on BioMarin’s open-label, single-arm GENEr8-1 study in 134 men with severe congenital hemophilia A. Patients received a single infusion of 6 x 10¹³ vector genomes per kilogram.

Among the 132 patients available for 2-year evaluation, median factor VIII activity was in the range for mild hemophilia (6%-39% of normal) with an 84.5% reduction in bleeding events from baseline.

More than 80% of participants had no bleeding events requiring treatment, and there was a 98% reduction from baseline in mean use of exogenous factor VIII.

Overall, at 2 years, only 4.5% of patients had factor VIII activity consistent with severe hemophilia A; 9.1% had activity consistent with moderate disease; 59.8% had activity consistent with mild disease, and 26.5% had activity in the normal range above 40 IU/dL.

Trial investigators estimated that the typical half-life of the transgene-derived factor VIII production system is 123 weeks.

Among the six men who resumed prophylaxis, most had fewer bleeding events than when they were on prophylaxis before the infusion. All patients developed antibodies to the virus delivery vector, precluding retreatment.

Elevated alanine aminotransferase levels were the most common adverse event, occurring in 88.8% of patients, who were treated with immunosuppressants for a median of 33 weeks. Elevations persisted at 2 years in 29% of patients.

The other most common adverse events were headache (38.1%), nausea (37.3%), and increases in aspartate aminotransferase (35.1%).

A version of this article first appeared on Medscape.com.

The Food and Drug Administration approved the gene therapy valoctocogene roxaparvovec (Roctavian, BioMarin) for adults with severe hemophilia A.

Valoctocogene roxaparvovec, a one-time, single-dose IV infusion, is the first gene therapy approved in the United States for severe hemophilia A and will cost around $2.9 million. BioMarin has said the price tag reflects “the possibility of freedom from years” of infusions, which come to about $800,000 each year.

However, last December, the Institute for Clinical and Economic Review (ICER) set the upper bounds for the gene therapy at about $1.96 million. The extent to which the gene therapy will provide freedom from infusions, for how long, and in which patients are not completely understood.

Hemophilia A is caused by a mutation in the gene that produces a protein called coagulation factor VIII, which is essential for blood clotting. Valoctocogene roxaparvovec delivers a functional gene to liver cells via an adeno-associated virus serotype 5; the gene instructs the cells to make the missing clotting factor.

“Adults with severe hemophilia A face a lifelong burden, with frequent infusions and a high risk of health complications, including uncontrolled bleeding and irreversible joint damage,” Steven Pipe, MD, professor of pediatrics and pathology at the University of Michigan, Ann Arbor, and an investigator for the phase 3 study that led to the approval, said in a statement. The approval of valoctocogene roxaparvovec “has the potential to transform the way we treat adults based on years of bleed control following a single, one-time infusion.”

About 6,500 U.S. adults live with severe hemophilia A, and BioMarin said it anticipates approximately 2,500 will be eligible to receive the gene therapy following the approval. The U.S. indication is limited to patients without a history of factor VIII inhibitors and without detectable antibodies to the adeno-associated virus serotype 5.

Last August, the European Medicines Agency authorized the gene therapy for use in Europe, but according to Forbes and PharmaPhorum, uptake in Europe has been delayed because of reimbursement issues, given the cost of treatment and clinical uncertainties.

Data to date, however, are promising for most patients. Approval was based on BioMarin’s open-label, single-arm GENEr8-1 study in 134 men with severe congenital hemophilia A. Patients received a single infusion of 6 x 10¹³ vector genomes per kilogram.

Among the 132 patients available for 2-year evaluation, median factor VIII activity was in the range for mild hemophilia (6%-39% of normal) with an 84.5% reduction in bleeding events from baseline.

More than 80% of participants had no bleeding events requiring treatment, and there was a 98% reduction from baseline in mean use of exogenous factor VIII.

Overall, at 2 years, only 4.5% of patients had factor VIII activity consistent with severe hemophilia A; 9.1% had activity consistent with moderate disease; 59.8% had activity consistent with mild disease, and 26.5% had activity in the normal range above 40 IU/dL.

Trial investigators estimated that the typical half-life of the transgene-derived factor VIII production system is 123 weeks.

Among the six men who resumed prophylaxis, most had fewer bleeding events than when they were on prophylaxis before the infusion. All patients developed antibodies to the virus delivery vector, precluding retreatment.

Elevated alanine aminotransferase levels were the most common adverse event, occurring in 88.8% of patients, who were treated with immunosuppressants for a median of 33 weeks. Elevations persisted at 2 years in 29% of patients.

The other most common adverse events were headache (38.1%), nausea (37.3%), and increases in aspartate aminotransferase (35.1%).

A version of this article first appeared on Medscape.com.

The Food and Drug Administration approved the gene therapy valoctocogene roxaparvovec (Roctavian, BioMarin) for adults with severe hemophilia A.

Valoctocogene roxaparvovec, a one-time, single-dose IV infusion, is the first gene therapy approved in the United States for severe hemophilia A and will cost around $2.9 million. BioMarin has said the price tag reflects “the possibility of freedom from years” of infusions, which come to about $800,000 each year.

However, last December, the Institute for Clinical and Economic Review (ICER) set the upper bounds for the gene therapy at about $1.96 million. The extent to which the gene therapy will provide freedom from infusions, for how long, and in which patients are not completely understood.

Hemophilia A is caused by a mutation in the gene that produces a protein called coagulation factor VIII, which is essential for blood clotting. Valoctocogene roxaparvovec delivers a functional gene to liver cells via an adeno-associated virus serotype 5; the gene instructs the cells to make the missing clotting factor.

“Adults with severe hemophilia A face a lifelong burden, with frequent infusions and a high risk of health complications, including uncontrolled bleeding and irreversible joint damage,” Steven Pipe, MD, professor of pediatrics and pathology at the University of Michigan, Ann Arbor, and an investigator for the phase 3 study that led to the approval, said in a statement. The approval of valoctocogene roxaparvovec “has the potential to transform the way we treat adults based on years of bleed control following a single, one-time infusion.”

About 6,500 U.S. adults live with severe hemophilia A, and BioMarin said it anticipates approximately 2,500 will be eligible to receive the gene therapy following the approval. The U.S. indication is limited to patients without a history of factor VIII inhibitors and without detectable antibodies to the adeno-associated virus serotype 5.

Last August, the European Medicines Agency authorized the gene therapy for use in Europe, but according to Forbes and PharmaPhorum, uptake in Europe has been delayed because of reimbursement issues, given the cost of treatment and clinical uncertainties.

Data to date, however, are promising for most patients. Approval was based on BioMarin’s open-label, single-arm GENEr8-1 study in 134 men with severe congenital hemophilia A. Patients received a single infusion of 6 x 10¹³ vector genomes per kilogram.

Among the 132 patients available for 2-year evaluation, median factor VIII activity was in the range for mild hemophilia (6%-39% of normal) with an 84.5% reduction in bleeding events from baseline.

More than 80% of participants had no bleeding events requiring treatment, and there was a 98% reduction from baseline in mean use of exogenous factor VIII.

Overall, at 2 years, only 4.5% of patients had factor VIII activity consistent with severe hemophilia A; 9.1% had activity consistent with moderate disease; 59.8% had activity consistent with mild disease, and 26.5% had activity in the normal range above 40 IU/dL.

Trial investigators estimated that the typical half-life of the transgene-derived factor VIII production system is 123 weeks.

Among the six men who resumed prophylaxis, most had fewer bleeding events than when they were on prophylaxis before the infusion. All patients developed antibodies to the virus delivery vector, precluding retreatment.

Elevated alanine aminotransferase levels were the most common adverse event, occurring in 88.8% of patients, who were treated with immunosuppressants for a median of 33 weeks. Elevations persisted at 2 years in 29% of patients.

The other most common adverse events were headache (38.1%), nausea (37.3%), and increases in aspartate aminotransferase (35.1%).

A version of this article first appeared on Medscape.com.