On August 7, 2024 Revolution Medicines, Inc. (Nasdaq: RVMD), a clinical-stage oncology company developing targeted therapies for patients with RAS-addicted cancers, reported its financial results for the quarter ended June 30, 2024, and provided an update on corporate progress (Press release, Revolution Medicines, AUG 7, 2024, View Source [SID1234645502]).
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The company continues making progress on its 2024 development priorities:
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Advancing its RAS(ON) multi-selective inhibitor RMC-6236 into monotherapy pivotal trials.
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Pancreatic cancer: The company recently provided updated data on the clinical safety, tolerability and antitumor activity in patients with pancreatic ductal adenocarcinoma (PDAC) from its ongoing RMC-6236 monotherapy study. Strong preliminary progression-free survival (PFS) and overall survival (OS) PDAC data support the company’s plans to initiate a pivotal, randomized, controlled Phase 3 monotherapy study in the second-line (2L) treatment of patients with metastatic PDAC this year; work is underway toward this goal.
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Lung cancer: Data from the RMC-6236 monotherapy study in patients with non-small cell lung cancer (NSCLC) continue to mature. The company remains on track to initiate a pivotal study in previously-treated patients with RAS-mutated NSCLC this year.
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Expanding the reach of RMC-6236 monotherapy and/or combinations into earlier lines of therapy. Based on compelling preliminary monotherapy data in 2L PDAC, the company plans to evaluate RMC-6236 in earlier lines of treatment for pancreatic cancer including the first-line, locally advanced, and resectable settings. In addition to monotherapy, the company is currently evaluating RMC-6236 in combination with chemotherapy, which is the current standard of care for patients with PDAC.
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Qualifying its RAS(ON) mutant-selective inhibitors, RMC-6291 (G12C-selective inhibitor) and RMC-9805 (G12D-selective inhibitor), for late-stage development.
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With the goal of moving RMC-6291 into early lines of therapy in NSCLC, the company is currently evaluating the RAS(ON) inhibitor doublet of RMC-6291 with RMC-6236 as well as RMC-6291 with pembrolizumab.
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This doublet approach was recently highlighted in the Cancer Discovery publication that demonstrated robust antitumor activity by a RAS(ON) multi-selective inhibitor in combination with a RAS(ON) G12C-selective inhibitor in preclinical models of refractory KRAS G12X NSCLC.
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The company continues to enroll patients with solid tumors harboring KRAS G12D mutations in the RMC-9805 monotherapy study.
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In support of its continuing pipeline momentum and commercial ambitions, the company appointed Frank Clyburn to its board of directors; Mr. Clyburn is a distinguished executive who led Merck’s global Keytruda franchise from its inception and helped establish Merck as a global leader in oncology. The company also expanded its senior management group with key new hires in medical affairs, corporate affairs, drug safety and program leadership.
"Confidence in our RAS(ON) inhibitor platform and assets continues to grow and has been bolstered particularly by the strength of the interim safety, PFS and OS data shown in July for patients with pancreatic cancer in the RMC-6236 monotherapy study. Based on current benchmarks for first- and second-line treatment of metastatic PDAC, we believe RMC-6236 has the potential to become an important new therapeutic option to address large unmet medical needs for patients with this threatening disease," said Mark A. Goldsmith, M.D., Ph.D., chief executive officer and chairman of Revolution Medicines. "The appointment of Frank Clyburn to our board of directors and several strategic additions to our executive team support our deep focus on enabling the next stage of growth and maturation for Revolution Medicines. We have made substantial progress in planning for the initiation of our first pivotal, Phase 3 study for RMC-6236 in pancreatic cancer, and are working actively to prepare to advance RMC-6236 into earlier lines of therapy."
Clinical Development Highlights
Plans to Advance RMC-6236 Monotherapy into Pivotal Trials
Pancreatic cancer: On July 15, 2024, the company reported updated data on the clinical safety, tolerability and antitumor activity from its ongoing monotherapy study evaluating RMC-6236 in patients with previously treated metastatic PDAC across dose cohorts ranging from 160 mg daily to 300 mg daily as of a May 11, 2024 data cutoff date. Key findings included:
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A total of 127 patients treated were evaluated for safety and tolerability.
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Approximately 22 percent of these patients experienced a Grade 3 or higher treatment-related adverse event (TRAE), and 96 percent of these patients experienced a TRAE of any grade.
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The most common TRAEs observed were rash and gastrointestinal-related toxicities. Reported TRAEs led to dose modifications (dose interruption and/or reduction) in 28 percent of these patients and there were no discontinuations due to TRAEs.
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The company also reported preliminary PFS and OS data in 2L treatment of patients with metastatic PDAC.
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The median PFS for patients with KRAS G12X mutations (n=42) was 8.1 months (95% confidence interval (CI); 5.9 months – not-estimable (NE)) and for patients with any RAS mutation (G12X, G13X and Q61X) (n=56) was 7.6 months (95% CI; 5.3 months – NE).
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For patients with KRAS G12X mutations and those with any RAS mutation, the observed OS was not estimable (95% CI for both groups; 8.5 months, NE).
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Based on initial feedback from the U.S. Food and Drug Administration, including supportive discussions on high-level trial design including a 300 mg daily dose, the company expects to initiate its Phase 3 registrational trial in the 2L treatment of patients with metastatic PDAC, called RASolute 302, this year.
Lung cancer: The company expects to share updated NSCLC data from its ongoing RMC-6236 monotherapy study in the fourth quarter of 2024 and to launch a registrational study to evaluate RMC-6236 in previously-treated patients with advanced NSCLC in the fourth quarter of 2024.
Evaluating RMC-6236 in Earlier Lines of Therapy
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PDAC. Evaluation is ongoing for RMC-6236 in combination with standard of care chemotherapy in first-line PDAC.
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NSCLC. Evaluation is ongoing for RMC-6236 in combination with pembrolizumab, with or without chemotherapy, in patients with advanced RAS-mutated NSCLC. The company expects to disclose initial clinical pharmacokinetic (PK), safety, tolerability and antitumor activity data for the combination of RMC-6236 with pembrolizumab in the fourth quarter of 2024.
Qualifying RMC-6291 for Late-Stage Development
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Combination Development. Evaluation of RMC-6291 with RMC-6236 and RMC-6291 with pembrolizumab, with or without chemotherapy, is ongoing. The company expects to disclose initial clinical PK, safety, tolerability and antitumor activity data for the combination of RMC-6291 with RMC-6236 in the fourth quarter of 2024 and for the combination RMC-6291 with pembrolizumab in the first half of 2025.
Qualifying RMC-9805 for Late-Stage Development
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Monotherapy Development. The company expects to disclose initial clinical PK, safety, tolerability and antitumor activity data for RMC-9805 in the fourth quarter of 2024.
RAS Innovation Engine
Beyond the first wave of clinical-stage RAS(ON) inhibitors, additional clinical development opportunities include the RAS(ON) mutant-selective inhibitors RMC-5127 (G12V), RMC-0708 (Q61H) and RMC-8839 (G13C) and the RAS companion inhibitors RMC-4630 (SHP2) and RMC-5552 (mTORC1/4EBP1).