Indirect treatment comparisons of avapritinib versus midostaurin for patients with advanced systemic mastocytosis
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Published on: July 25, 2020
Hollie Pilkington1, Sarah Smith1, Neil Roskell1
1BresMed Health Solutions, Manchester, M2 1DH, UK.
Abstract:
Objective: This research aimed to compare the relative efficacy of avapritinib versus midostaurin for patients with advanced systemic mastocytosis. Method: A systematic literature review was performed to identify relevant evidence. Unanchored matching-adjusted indirect comparisons were conducted for overall survival (OS), overall response rate (ORR) and complete remission (CR). Results: The systematic literature review identified the clinical trials EXPLORER and PATHFINDER (investigating avapritinib) and D2201 and A2213 (investigating midostaurin). The avapritinib versus midostaurin adjusted hazard ratio for OS was 0.44 (95% CI: 0.25-0.76), and the adjusted odds ratios for ORR and CR were 4.06 (95% CI: 3.09-5.33) and 9.56 (95% CI: 0.97-93.81), respectively. Conclusion: The results suggest that avapritinib improves survival and response (ORR and CR) compared with midostaurin.
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