A Study of Fitusiran in Severe Hemophilia A and B Patients Previously Receiving Factor or Bypassing Agent Prophylaxis
Public ClinicalTrials.gov record NCT03549871. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
ATLAS-PPX: an Open-label, Multinational, Switching Study to Describe the Efficacy and Safety of Fitusiran Prophylaxis in Patients With Hemophilia A and B Previously Receiving Factor or Bypassing Agent Prophylaxis.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Primary Objective: To characterize the frequency of bleeding episodes (BE) while receiving fitusiran treatment, relative to the frequency of bleeding episodes while receiving factor concentrate or bypassing agent (BPA) prophylaxis. Secondary Objectives: * To characterize the following while receiving fitusiran treatment, relative to receiving factor or BPA prophylaxis: * the frequency of spontaneous bleeding episodes * the frequency of joint bleeding episodes * health related quality of life (HRQOL) in participants greater than or equal to (\>=) 17 years of age * To characterize the frequency of bleeding episodes during the onset and treatment periods in participants receiving fitusiran. * To characterize the safety and tolerability of fitusiran. * To characterize the annualized weight-adjusted consumption of factor/BPA while receiving fitusiran treatment, relative to receiving factor or BPA prophylaxis.
Study identification
- NCT ID
- NCT03549871
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 80 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 12 Years and older
- Sex
- Male
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jul 24, 2018
- Primary completion
- Jan 19, 2022
- Completion
- Mar 24, 2022
- Last update posted
- Feb 5, 2023
2018 – 2022
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Investigational Site Number 0139 | Los Angeles | California | 90027 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 34 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03549871, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Feb 5, 2023 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03549871 live on ClinicalTrials.gov.