“In patients with advanced BRAF V600–mutant melanoma, combining the BRAF inhibitor encorafenib (Braftovi) with the MEK inhibitor binimetinib (Mektovi) improved overall survival compared to vemurafenib (Zelboraf) or encorafenib as monotherapy, with a favorable toxicity profile, according to updated results from the phase III COLUMBUS trial.
“Combined BRAF/MEK inhibitor therapy is standard of care in advanced BRAF V600–mutant melanoma, but approved combinations have unique toxicities that may impact the ability to deliver optimal treatment (ie, vemurafenib/cobimetinib [Cotellic] is associated with photosensitivity).”
In spring of 2014, Peter Fortenbaugh noticed what appeared to be a tick that had bitten his lower calf. “It turned out not to be a tick, but it didn’t really go away,” he says.
The spot began to grow and bulge, and in October, Peter showed it to his primary care doctor, who referred him to a dermatologist to remove it. At the time, Peter recalls, it did not occur to him that the growth could be serious.
“I was actually very concerned about skin cancer because I spent a lot of time out in the sun sailing,” Peter says. “I put on a tremendous amount of sunscreen and protection, but never on my legs…I never connected the dots.”
However, a biopsy of the growth came back positive for melanoma. Peter, who lives in Palo Alto, California, with his wife and three children, immediately reached out to several doctors in the San Francisco Bay Area, and all had the same advice: “Take it out, take a biopsy.” Continue reading…
“The combination of atezolizumab (Tecentriq) and cobimetinib (Cotellic) may lead to a higher overall response (ORR) and a longer progression-free survival (PFS) than either agent alone in patients with metastatic melanoma, according to findings presented at the 2016 Society for Melanoma Research (SMR) Annual Meeting.
“The findings were part of a phase Ib dose-escalation and dose-expansion study, which looked at the PD-L1 inhibitor and MEK inhibitor together in advanced solid tumors. Data on a cohort of 22 patients with ocular melanoma (n = 2) and non-ocular melanoma (n = 20) was presented at the meeting. Among patients in the non-ocular cohort, the ORR was 45% and the disease-control rate (complete response, partial response, and stable disease) was 75%. Median PFS was 12 months (95% CI, 2.8-16.7).”
“The addition of the PD-L1 inhibitor atezolizumab (Tecentriq) to the MEK inhibitor cobimetinib (Cotellic) and the BRAF inhibitor vemurafenib (Zelboraf) induced a high response rate for patients with BRAF-mutant unresectable melanoma, according to findings from a phase Ib study presented at the 2016 Society for Melanoma Research Annual Meeting.
“At the data cutoff of June 15, 2016, 30 patients had received ≥1 dose of atezolizumab. The response rate with the triplet was 83%, which included 3 complete responses (10%) and 21 partial responses. Overall, 29 of the 30 patients were evaluable for response, with just 1 patient experiencing primary progressive disease. At the time of the analysis, median duration of response and progression-free survival were not yet reached.”
“Combination therapy with cobimetinib (Cotellic) and vemurafenib (Zelboraf) reduced the risk of death by 30% compared with vemurafenib alone in patients with BRAF-positive advanced melanoma, according to the final survival analysis of the phase III coBRIM study that has now been published in The Lancet Oncology.
“The targeted combination improved median overall survival (OS) by 4.9 months versus single-agent vemurafenib (HR, 0.70; 95% CI, 0.55-0.90; P = .005). The OS rates for the combination at 1 and 2 years were 74.5% and 48.3%, respectively.
“ ‘Melanoma is one of the few cancers that has increased in incidence over the past 30 years, and until recently, people with advanced forms of the disease have had few treatment options. Five years ago, the survival of people with advanced melanoma was measured in months, and now we have medicines that are helping people live years,’ Josina Reddy, MD, PhD, senior group medical director at Genentech, the company that manufactures the combination, said in an interview with OncLive.”
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“The FDA has approved a combination of vemurafenib (Zelboraf) and cobimetinib (Cotellic) to treat patients with metastatic or unresectable BRAF V600E/K mutation-positive melanoma. The approval was based on based on an extension in progression-free survival (PFS) in the phase III coBRIM study.
“In the data submitted to the FDA, the median PFS with the combination was 12.3 versus 7.2 months with vemurafenib plus placebo (HR, 0.58; 95% CI, 0.46-0.72). PFS was the primary endpoint of the study with secondary outcome measures including overall survival (OS), objective response rate (ORR), duration of response, and safety.”