A single-dose mass balance and metabolite-profiling study of vemurafenib in patients with metastatic melanoma.
Article Details
- CitationCopy to clipboard
Goldinger SM, Rinderknecht J, Dummer R, Kuhn FP, Yang KH, Lee L, Ayala RC, Racha J, Geng W, Moore D, Liu M, Joe AK, Bazan SP, Grippo JF
A single-dose mass balance and metabolite-profiling study of vemurafenib in patients with metastatic melanoma.
Pharmacol Res Perspect. 2015 Mar;3(2):e00113. doi: 10.1002/prp2.113.
- PubMed ID
- 25729580 [ View in PubMed]
- Abstract
Vemurafenib, a selective inhibitor of oncogenic BRAF kinase carrying the V600 mutation, is approved for treatment of advanced BRAF mutation-positive melanoma. This study characterized mass balance, metabolism, rates/routes of elimination, and disposition of (14)C-labeled vemurafenib in patients with metastatic melanoma. Seven patients with metastatic BRAF-mutated melanoma received unlabeled vemurafenib 960 mg twice daily for 14 days. On the morning of day 15, patients received (14)C-labeled vemurafenib 960 mg (maximum 2.56 MBq [69.2 muCi]). Thereafter, patients resumed unlabeled vemurafenib (960 mg twice daily). Blood, urine, and feces were collected for metabolism, pharmacokinetic, and dose recovery analysis. Within 18 days after dose, reverse similar95% of (14)C-vemurafenib-related material was recovered from feces (94.1%) and urine (<1%). The parent compound was the predominant component (95%) in plasma. The mean plasma elimination half-life of (14)C-vemurafenib-related material was 71.1 h. Each metabolite accounted for <0.5% and
