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- W4384434319 abstract "Background: The phase 3, prospective PROPEL study demonstrated that pharmacokinetic (PK)-guided prophylaxis targeting elevated factor VIII (FVIII) troughs in patients with hemophilia A resulted in lower annualized bleeding rates (ABRs) and a higher proportion of patients experiencing zero bleeds in the second 6 months of treatment when targeting a FVIII trough of 8–12% versus 1–3%. Objective: To investigate the benefit of PK-guided prophylaxis with rurioctocog alfa pegol targeting two FVIII trough levels in specific patient subgroups in a post hoc analysis using data from PROPEL. Design: This is a post hoc analysis of data from the PROPEL study. The design and primary outcomes of the prospective, randomized PROPEL study (NCT02585960) have been reported previously. Methods: This post hoc analysis reports data stratified by FVIII half-life ( t 1/2 ), hemophilic arthropathy status, number of target joints at screening, previous treatment regimen, and ABR range in the 12 months before study entry. Results: Targeting an elevated FVIII trough of 8–12% was associated with higher average FVIII levels over time, regardless of FVIII t 1/2 at baseline. The decrease in total ABR between the 8–12% and 1–3% arms was greatest in patients with a FVIII t 1/2 of 6 to <12 h (0.7 versus 3.5); a higher number of target joints, that is, at least four target joints, at baseline (0.2 versus 1.6); the presence of arthropathy (0.1 versus 1.7); and those previously treated on-demand (0.3 versus 1.8). Conclusion: These results support the feasibility of targeting elevated FVIII levels using personalized rurioctocog alfa pegol prophylaxis. These benefits may be especially important in patients with a short FVIII t 1/2 and those receiving standard prophylaxis with frequent breakthrough bleeds, arthropathy, and target joints. Registration: ClinicalTrials.gov Identifier: NCT02585960; https://clinicaltrials.gov/ct2/show/NCT02585960" @default.
- W4384434319 created "2023-07-16" @default.
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- W4384434319 date "2023-01-01" @default.
- W4384434319 modified "2023-09-26" @default.
- W4384434319 title "Targeting an elevated FVIII level using personalized rurioctocog alfa pegol prophylaxis in specific patient populations with hemophilia A: <i>post hoc</i> subanalysis of the randomized, phase 3 PROPEL study" @default.
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- W4384434319 doi "https://doi.org/10.1177/20406207231178596" @default.
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