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A Study of Fitusiran (ALN-AT3SC) in Severe Hemophilia A and B Patients Without Inhibitors

Hemophilia A Clinical Trial

Official title:
ATLAS-A/B: A Phase 3 Study to Evaluate the Efficacy and Safety of Fitusiran in Patients With Hemophilia A or B, Without Inhibitory Antibodies to Factor VIII or IX

Clinical Trial Summary

Primary Objective: -To evaluate the efficacy of fitusiran compared to on-demand treatment with factor concentrates, as determined by the frequency of bleeding episodes. Secondary Objectives: - To evaluate the efficacy of fitusiran compared to on-demand treatment with factor concentrates, as determined by: - The frequency of spontaneous bleeding episodes. - The frequency of joint bleeding episodes. - Health-related quality of life (HRQOL) in participants >=17 years of age. - To determine the frequency of bleeding episodes during the onset period. - To determine the safety and tolerability of fitusiran.

Clinical Trial Description

The duration of treatment with fitusiran was 9 months. The estimated total time on study, inclusive of screening, was up to 11 months for all participants in the factor on-demand arm and for participants in the fitusiran arm who enrolled in the extension study (LTE15174). The estimated total time on the study was up to 17 months for participants in the fitusiran treatment arm who did not enroll in the extension study due to the requirement for up to an additional 6 months of follow-up monitoring for antithrombin levels. Participants who completed the study will be eligible for an open-label extension study LTE15174 (NCT03754790). ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03417245
Study type Interventional
Source Sanofi
Contact
Status Completed
Phase Phase 3
Start date March 1, 2018
Completion date July 14, 2021
View Details
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