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Ref Type | Journal Article | ||||||||||||
PMID | (31645440) | ||||||||||||
Authors | Sullivan RJ, Hollebecque A, Flaherty KT, Shapiro GI, Rodon Ahnert J, Millward MJ, Zhang W, Gao L, Sykes A, Willard MD, Yu D, Schade AE, Crowe K, Flynn DL, Kaufman MD, Henry JR, Peng SB, Benhadji KA, Conti I, Gordon MS, Tiu RV, Hong DS | ||||||||||||
Title | A Phase I Study of LY3009120, a Pan-RAF Inhibitor, in Patients with Advanced or Metastatic Cancer. | ||||||||||||
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Abstract Text | Mutations in ERK signaling drive a significant percentage of malignancies. LY3009120, a pan-RAF and dimer inhibitor, has preclinical activity in RAS- and BRAF-mutated cell lines including BRAF-mutant melanoma resistant to BRAF inhibitors. This multicenter, open-label, phase I clinical trial (NCT02014116) consisted of part A (dose escalation) and part B (dose confirmation) in patients with advanced/metastatic cancer. In part A, oral LY3009120 was dose escalated from 50 to 700 mg twice a day on a 28-day cycle. In part B, 300 mg LY3009120 was given twice a day. The primary objective was to identify a recommended phase II dose (RP2D). Secondary objectives were to evaluate safety, pharmacokinetics, and preliminary efficacy. Identification of pharmacodynamic biomarkers was exploratory. In parts A and B, 35 and 16 patients were treated, respectively (N = 51). In part A, 6 patients experienced eight dose-limiting toxicities. The RP2D was 300 mg twice a day. Common (>10%) any-grade drug-related treatment-emergent adverse events were fatigue (n = 15), nausea (n = 12), dermatitis acneiform (n = 10), decreased appetite (n = 7), and maculopapular rash (n = 7). The median duration of treatment was 4 weeks; 84% of patients completed one or two cycles of treatment. Exposures observed at 300 mg twice a day were above the preclinical concentration associated with tumor regression. Eight patients had a best overall response of stable disease; there were no complete or partial clinical responses. Despite adequate plasma exposure levels, predicted pharmacodynamic effects were not observed. |
Molecular Profile | Treatment Approach |
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Gene Name | Source | Synonyms | Protein Domains | Gene Description | Gene Role |
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Therapy Name | Drugs | Efficacy Evidence | Clinical Trials |
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Drug Name | Trade Name | Synonyms | Drug Classes | Drug Description |
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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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NRAS mutant | Advanced Solid Tumor | no benefit | LY3009120 | Case Reports/Case Series | Actionable | In a Phase I trial, LY3009120 did not achieve expected pharmacodynamic effects, resulted in stable disease as best overall response in 1 of 5 patients with advanced or metastatic cancer harboring NRAS mutations (PMID: 31645440; NCT02014116). | 31645440 |
BRAF mutant | Advanced Solid Tumor | no benefit | LY3009120 | Case Reports/Case Series | Actionable | In a Phase I trial, LY3009120 did not achieve expected pharmacodynamic effects, resulted in stable disease as best overall response in 5 of 12 patients with advanced or metastatic cancer harboring BRAF mutations (PMID: 31645440; NCT02014116). | 31645440 |