Neoadjuvant Dabrafenib/Trametinib Leads to High pCR Rates in Bulky Resectable Melanoma, But Recurrences Are Common

Source: OncLive, September 2017

Phase II results demonstrated that nearly half of patients with resectable stage IIIB/C BRAF V600-mutant melanoma achieved pathologic complete response (pCR) with neoadjuvant combination therapy consisting of dabrafenib (Tafinlar) and trametinib (Mekinist). Additionally, no patients experienced disease progression during the neoadjuvant treatment, said Alexander M. Menzies, MD, who presented the data at the 2017 ESMO Congress in Madrid.

“Nearly 50% of our patients had a complete eradication of their melanoma at the time of surgery. Fifty percent had some remaining melanoma in the surgical specimen, but every patient had some degree of tumor shrinkage on therapy,” said Menzies, a medical oncologist and senior research fellow at Melanoma Institute Australia in Sydney, Australia. “These are patients who otherwise would just have surgery and then have observation. And, these are patients who are at very high risk, probably the highest risk of recurrence without further therapy.”

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