Table 1.
Study reference | Number of patients eligible for analysis | Study design | Primary end point | Dose and schedule - treatment arm | Responses | Survival | HR (95% CI) |
---|---|---|---|---|---|---|---|
BRIM 2 [22] | 132 | Phase II, open label | BORR | Vemurafenib (PLX-4032) 960 mg b.i.d. orally | BORR: 52.3% CR: 2.3% PR: 50% |
6.2 months | N/A |
BRIM 3 [4] | 675 | Phase III, randomized, double blind | OS | Vemurafenib (PLX-4032) 960 mg b.i.d. orally | PLX-4032: 84% (6 months) DTIC® alone: 64% (6 months) |
PLX-4032: 5.3 months DTIC alone: 1.6 months |
Death 0.37 (95% CI 0.26 – 0.55) Progression 0.26 (95% CI 0.20 – 0.33) |
Infante et al [23] | 16 (45) | Three-part Phase I/II Part 1: PK drug-drug interaction study Part 2: dose escalation to find MTD followed by expansion Part 3: randomized Phase II trial in untreated stage IV melanoma |
Part 1: PK/PD Part 2: OR |
Dabrafenib (GSK2118436, BRAF inhibitor) 75 – 150 mg b.i.d. + GSK1120212 (oral MEK1/2 inhibitor) 1.0, 1.5 or 2.0 mg q.d. RP2D: GSK2118436 150 mg b.i.d. + GSK1120212 2 mg q.d. | ORR: 81% (13 PR + 3 SD) | N/A | N/A |
CI: Confidence interval; HR: Hazard ratio; N/A: Not applicable; ORR: Overall response rate; OS: Overall survival; PD: Pharmacodynamics; PFS: Progression-free survival; PK: Pharmacokinetics; PR: Partial response; RP2D: Recommended Phase II dosage; SD: Stable disease.