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A study of fitusiran (ALN-AT3SC) in hemophilia A and B patients previously receiving factor or bypassing agent prophylaxis

ATLAS-PPX trial: an open-label, multinational, switching study to describe the efficacy and safety of fitusiran prophylaxis in hemophilia A and B patients previously receiving factor or bypassing agent prophylaxis. - ATLAS-PPX

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2016-004087-19-ES
Enrollment
90
Registered
2017-07-12
Start date
2017-08-25
Completion date
Unknown
Last updated
2023-09-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hemophilia A or Hemophilia B MedDRA version: 20.0 Level: LLT Classification code 10060613 Term: Hemophilia A (Factor VIII) System Organ Class: 100000011915 MedDRA version: 20.0 Level: LLT Classification code 10060614 Term: Hemophilia B (Factor IX) System Organ Class: 100000011913

Interventions

Product Name: fitusiran Product Code: ALN-AT3SC Pharmaceutical Form: Solution for injection INN or Proposed INN: fitusiran CAS Number: 1609016-97-8 Current Sponsor code: ALN-AT3SC Concentration unit:

Sponsors

Alnylam Pharmaceuticals, Inc.
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: Males =12 years of age. Severe hemophilia A or B (evidenced by a central laboratory FVIII =65 years) yes F.1.3.1 Number of subjects for this age range 5

Exclusion criteria

Exclusion criteria: Patients with known co-existing bleeding disorders other than hemophilia A or B Patients with clinically significant liver disease Patients known to be HIV positive and have a CD4 count <200 cells/µL Patients with a history of arterial or venous thromboembolism Estimated glomerular filtration rate =45 mL/min/1.73m2 (using the Modification of Diet in Renal Disease [MDRD] formula) Patients with a co-existing thrombophilic disorder Patients with a history of multiple drug allergies or history of allergic reaction to an oligonucleotide or GalNAc Patients with a history of intolerance to SC injection(s) Patients with an anticipated or planned need for surgery during the study Any other conditions or comorbidities that would make the patient unsuitable for enrollment or could interfere with participation in or completion of the study, per Investigator judgement

Design outcomes

Primary

MeasureTime frame
Main Objective: To characterize the frequency of bleeding episodes while receiving fitusiran treatment, relative to the frequency of bleeding episodes while receiving factor or bypassing agent prophylaxis.;Secondary Objective: To characterize the frequency of spontaneous bleeding episodes, the frequency of joint bleeding episodes in patients, and health related quality of life (HRQOL) in patients while receiving fitusiran treatment, relative to receiving factor or bypassing agent prophylaxis.;Primary end point(s): Annualized bleeding rate (ABR);Timepoint(s) of evaluation of this end point: Through 13 months

Secondary

MeasureTime frame
Secondary end point(s): Annualized spontaneous bleeding rate Annualized joint bleeding rate Haem-A-QOL score;Timepoint(s) of evaluation of this end point: Through 13 months

Countries

Australia, Brazil, Bulgaria, Canada, China, Denmark, France, Germany, Hungary, Ireland, Israel, Italy, Japan, Korea, Republic of, Malaysia, Netherlands, Portugal, Russian Federation, South Africa, Spain, Switzerland, Taiwan, Turkey, Ukraine, United Kingdom, United States

Contacts

Public ContactDorota Jusza

PPD Global

clinicaltrials@alnylam.com

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026