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Completed Phase 3 Interventional Results available

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

ClinicalTrials.gov ID: NCT03417245

Public ClinicalTrials.gov record NCT03417245. 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.

ClinicalTrials.gov public records Last synced Jul 21, 2026, 4:44 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

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

Study identification

NCT ID
NCT03417245
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Genzyme, a Sanofi Company
Industry
Enrollment
120 participants

Conditions and interventions

Interventions

  • fitusiran Drug
  • factor concentrates Drug

Drug

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
Feb 28, 2018
Primary completion
Jan 25, 2021
Completion
Jul 13, 2021
Last update posted
Mar 27, 2022

2018 – 2021

United States locations

U.S. sites
8
U.S. states
7
U.S. cities
8
Facility City State ZIP Site status
Investigational Site Number 0140 Little Rock Arkansas 72202
Investigational Site Number 128 Gainesville Florida 32610
Investigational Site Number 103 Tampa Florida 33607
Investigational Site Number 102 Chicago Illinois 60612-3833
Investigational Site Number 119 New Orleans Louisiana 70112
Investigational Site Number 125 Ann Arbor Michigan 48109
Investigational Site Number 111 Las Vegas Nevada 89135
Investigational Site Number 110 Akron Ohio 44308

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 56 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03417245, 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 Mar 27, 2022 · Synced Jul 21, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03417245 live on ClinicalTrials.gov.

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