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Ref Type | Journal Article | ||||||||||||
PMID | (22048237) | ||||||||||||
Authors | Kirkwood JM, Bastholt L, Robert C, Sosman J, Larkin J, Hersey P, Middleton M, Cantarini M, Zazulina V, Kemsley K, Dummer R | ||||||||||||
Title | Phase II, open-label, randomized trial of the MEK1/2 inhibitor selumetinib as monotherapy versus temozolomide in patients with advanced melanoma. | ||||||||||||
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Abstract Text | To compare the efficacy and tolerability of the mitogen-activated protein (MAP)/extracellular signal-regulated (ERK) kinase (MEK) 1/2 inhibitor selumetinib versus temozolomide in chemotherapy-naive patients with unresectable stage III/IV melanoma.This phase II, open-label, multicenter, randomized, parallel-group study examined the effect of 100 mg oral selumetinib twice daily in 28-day cycles versus oral temozolomide (200 mg/m(2)/d for 5 days, then 23 days off-treatment). The primary endpoint was progression-free survival.Two hundred patients were randomized. Progression-free survival did not differ significantly between selumetinib and temozolomide (median time to event 78 and 80 days, respectively; hazard ratio, 1.07; 80% confidence interval, 0.86-1.32). Objective response was observed in six (5.8%) patients receiving selumetinib and nine (9.4%) patients in the temozolomide group. Among patients with BRAF mutations, objective responses were similar between selumetinib and temozolomide groups (11.1% and 10.7%, respectively). However, five of the six selumetinib partial responders were BRAF mutated. Frequently reported adverse events with selumetinib were dermatitis acneiform (papular pustular rash; 59.6%), diarrhea (56.6%), nausea (50.5%), and peripheral edema (40.4%), whereas nausea (64.2%), constipation (47.4%), and vomiting (44.2%) were reported with temozolomide.No significant difference in progression-free survival was observed between patients with unresectable stage III/IV melanoma unselected for BRAF/NRAS mutations, who received therapy with selumetinib or temozolomide. Five of six patients with partial response to selumetinib had BRAF mutant tumors. |
Molecular Profile | Treatment Approach |
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Therapy Name | Drugs | Efficacy Evidence | Clinical Trials |
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Gene | Variant | Impact | Protein Effect | Variant Description | Associated with drug Resistance |
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Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
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BRAF wild-type | melanoma | no benefit | Selumetinib | Phase II | Actionable | In a Phase II trial, a favorable response rate to Koselugo (selumetinib) was observed in BRAF-mutant, but not BRAF wild-type, melanoma patients (PMID: 22048237). | 22048237 |
BRAF V600E | melanoma | sensitive | Selumetinib | Phase II | Actionable | In a Phase II trial, a favorable response rate to selumetinib (AZD6244) was observed in mutant BRAF but not BRAF wild-type melanoma patients (PMID: 22048237). | 22048237 |
BRAF mutant | melanoma | sensitive | Selumetinib | Case Reports/Case Series | Actionable | In a Phase II trial, 5 out of 6 patients with advanced melanoma exhibiting a response to Koselugo (selumetinib) had BRAF-mutant tumors (PMID: 22048237). | 22048237 |