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Study finds skin-related side effects indicate cancer drugs work on patients


Nepalnews
2022 Jan 14, 15:14, Washington

A new study has found that the side effects of advanced cancer drugs, related to skin, indicate that they may actually be working.

The research has been published in the 'JAMA Dermatology'.

For the study, investigators accessed the TriNetX Diamond network, a database of health records and claims data from more than 200 million U.S. and European patients. The team compared information for 14,016 patients with advanced cancer who were treated with immune checkpoint inhibitors: 7,008 who developed skin-related side effects and 7,008 who did not.

The median study follow-up was 3.2 years and 3,233 (26.1 percent) of the patients had died during that time. Patients who experienced at least one skin-related adverse event had a 22 percent decrease in mortality.

Interestingly, this protective effect was not the same for all skin-related adverse events and was strongest among patients who developed vitiligo (loss of skin colour in blotches), lichen planus (an inflammatory skin condition), itchiness, dryness, and non-specific rashes, ranging from a 30 per cent-50 percent protection from mortality.

"These data provide oncologists and dermatologists with important prognostic information when counseling immunotherapy recipients on the clinical implications of the skin toxicities," said senior author Yevgeniy R. Semenov, MD, an investigator in the Department of Dermatology at MGH.

"Also, skin toxicities tend to occur early in the course of immunotherapy and present an opportunity to evaluate efficacy soon after initiating treatment. As such, our findings may help identify patients who are more likely to benefit from their current immunotherapy regimen versus those who may need to be considered for a stronger or alternative treatment regimen," Semenov added.

Additional research is needed to understand the mechanisms behind the relationships between these skin reactions and a patient's prognosis, and whether interventions used to treat or prevent them may affect survival.

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