Allergies, Author Interviews, Cancer Research, Immunotherapy / 07.06.2019
Some Patients Can Be Rechallenged After Immune Adverse Events from Checkpoint Inhibitors
MedicalResearch.com Interview with:
Prof. Olivier Lambotte, MD, PHD
Professor of Internal Medicine
Paris XI University Medical School
Research Director
Control of Chronic Viral Infections Department
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Immune checkpoint inhibitors (ICIs) anti-programmed death-1 (PD-1) or anti-programmed death ligand-1 (PD-L1) have proven efficacy in the treatment of many cancers but patients may experience immune-related adverse events (irAEs). Immune checkpoint inhibitors is usually stopped when grade 2 or higher irAE occur. Data are very limited on the safety of resuming treatment after such an event.
We studied all adult patients referred to the ImmunoTOX toxicity review board at the Gustave Roussy cancer center (Villejuif, France) in 2015-2017 with irAE grade 2 or higher for whom the rechallenge was questioned. Among 93 patients with a broad spectrum of cancers, 40 patients (43%) were rechallenged with the same anti-PD-1 or anti-PD-L1. The rechallenged and non-rechallenged groups did not differ in terms of age, time to initial irAE, irAE severity, or steroid use. With a median follow-up period of 14 months, the same irAE or a different irAE occurred in 22 patients (55%). The second irAEs were not more severe than the first. Earlier initial toxicity was associated with more frequent irAE recurrence.
Prof. Olivier Lambotte, MD, PHD
Professor of Internal Medicine
Paris XI University Medical School
Research Director
Control of Chronic Viral Infections Department
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Immune checkpoint inhibitors (ICIs) anti-programmed death-1 (PD-1) or anti-programmed death ligand-1 (PD-L1) have proven efficacy in the treatment of many cancers but patients may experience immune-related adverse events (irAEs). Immune checkpoint inhibitors is usually stopped when grade 2 or higher irAE occur. Data are very limited on the safety of resuming treatment after such an event.
We studied all adult patients referred to the ImmunoTOX toxicity review board at the Gustave Roussy cancer center (Villejuif, France) in 2015-2017 with irAE grade 2 or higher for whom the rechallenge was questioned. Among 93 patients with a broad spectrum of cancers, 40 patients (43%) were rechallenged with the same anti-PD-1 or anti-PD-L1. The rechallenged and non-rechallenged groups did not differ in terms of age, time to initial irAE, irAE severity, or steroid use. With a median follow-up period of 14 months, the same irAE or a different irAE occurred in 22 patients (55%). The second irAEs were not more severe than the first. Earlier initial toxicity was associated with more frequent irAE recurrence.
Hoda S. Abdel Magid, MHS, PhD
Postdoctoral Scholar
Department of Health Research & Policy
Stanford University
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Dr. Hoda Magid, my former graduate student, and I wanted to examine whether owning promotional items for e-cigarettes and other non-cigarette products predicted youth use of those products. Other studies have examined whether ownership of coupons, samples, and other promotional materials influenced cigarette use, but no longitudinal study examined other tobacco products.
Our findings show that non-tobacco using youth who own items to promote e-cigarettes and other alternative tobacco products are twice as likely to use alternative tobacco products a year later.






Dr. Schwartz[/caption]
Dr. Joseph A Schwartz PhD
Public Affairs and
Community Service, Criminology and Criminal Justice
University of Nebraska Omaha, Omaha, NE
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: My larger research agenda is focused on identifying the ways in which environmental and biological influences work collectively to shape behavioral patterns across major stages of the life course. I am particularly interested in identifying environmental influences that can change biological functioning or activity to result in behavioral change.
Brain injury was a natural progression of these interests since brain injury is expected to result in changes in the structure and functioning of the brain, which has been linked to meaningful changes in behavior. There have also been a sizable number of studies that indicate that justice involved populations experience brain injury at a rate that is between five and eight times what is observed in the general population. I was fascinated by this finding and thought that brain injury may be a good candidate influence to investigate further.