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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT03417102




Registration number
NCT03417102
Ethics application status
Date submitted
25/01/2018
Date registered
31/01/2018
Date last updated
28/03/2022

Titles & IDs
Public title
A Study of Fitusiran (ALN-AT3SC) in Severe Hemophilia A and B Patients With Inhibitors
Scientific title
ATLAS-INH: A Phase 3 Study to Evaluate the Efficacy and Safety of Fitusiran in Patients With Hemophilia A or B, With Inhibitory Antibodies to Factor VIII or IX
Secondary ID [1] 0 0
2016-001463-36
Secondary ID [2] 0 0
EFC14768
Universal Trial Number (UTN)
Trial acronym
ATLAS-INH
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Hemophilia A 0 0
Hemophilia B 0 0
Condition category
Condition code
Blood 0 0 0 0
Clotting disorders
Human Genetics and Inherited Disorders 0 0 0 0
Other human genetics and inherited disorders

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - fitusiran
Treatment: Drugs - Bypassing agents

Active comparator: Bypassing Agents (BPA) On-demand - Participants received On-demand BPAs (use of these agents, as needed, for episodic bleeding episodes, and not on a regular regimen intended to prevent spontaneous bleeding) per Investigator discretion from Day 1 for treatment of breakthrough bleeding episodes, up to a total of 9 months.

Experimental: Fitusiran 80 mg Prophylaxis - Participants received Fitusiran 80 mg subcutaneously (SC) as prophylaxis once monthly from Day 1, along with the on-demand BPAs (per investigator's discretion and within bleeding dosing guidelines) for treatment of breakthrough bleeding episodes, up to a total of 9 months.


Treatment: Drugs: fitusiran
solution for injection; by subcutaneous (SC) injection

Treatment: Drugs: Bypassing agents
solution for injection; by intravenous (IV) injection
Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Estimated Annualized Bleeding Rate (ABR) for Treated Bleeds During the Efficacy Period
Timepoint [1] 0 0
From Day 29 up to Day 246 or up to the last day of bleeding follow up (any day up to Day 246), whichever was the earliest
Primary outcome [2] 0 0
Observed Annualized Bleeding Rate (ABR) for Treated Bleeds During the Efficacy Period
Timepoint [2] 0 0
From Day 29 up to Day 246 or up to the last day of bleeding follow up (any day up to Day 246), whichever was the earliest
Secondary outcome [1] 0 0
Estimated Annualized Bleeding Rate (ABR) for Treated Bleeds During the Treatment Period
Timepoint [1] 0 0
From Day 1 up to Day 246 or up to the last day of bleeding follow up (any day up to Day 246), whichever was the earliest
Secondary outcome [2] 0 0
Observed Annualized Bleeding Rate (ABR) for Treated Bleeds During the Treatment Period
Timepoint [2] 0 0
From Day 1 up to Day 246 or up to the last day of bleeding follow up (any day up to Day 246), whichever was the earliest
Secondary outcome [3] 0 0
Estimated Annualized Spontaneous Bleeding Rate for Treated Bleeds During Efficacy Period
Timepoint [3] 0 0
From Day 29 up to Day 246 or up to the last day of bleeding follow up (any day up to Day 246), whichever was the earliest
Secondary outcome [4] 0 0
Observed Annualized Spontaneous Bleeding Rate for Treated Bleeds During the Efficacy Period
Timepoint [4] 0 0
From Day 29 up to Day 246 or up to the last day of bleeding follow up (any day up to Day 246), whichever was the earliest
Secondary outcome [5] 0 0
Estimated Annualized Joint Bleeding Rate for Treated Bleeds During the Efficacy Period
Timepoint [5] 0 0
From Day 29 up to Day 246 or up to the last day of bleeding follow up (any day up to Day 246), whichever was the earliest
Secondary outcome [6] 0 0
Observed Annualized Joint Bleeding Rate for Treated Bleeds During the Efficacy Period
Timepoint [6] 0 0
From Day 29 up to Day 246 or up to the last day of bleeding follow up (any day up to Day 246), whichever was the earliest
Secondary outcome [7] 0 0
Health-related Quality of Life (HRQOL): Change From Baseline in Haemophilia Quality of Life Questionnaire for Adults (Haem-A-QOL) Physical Health Domain Score at Month 9
Timepoint [7] 0 0
Baseline (Day 1), Month 9
Secondary outcome [8] 0 0
Health-related Quality of Life (HRQOL): Change From Baseline in Haem-A-QOL Total Score at Month 9
Timepoint [8] 0 0
Baseline (Day 1), Month 9
Secondary outcome [9] 0 0
Estimated Annualized Bleeding Rate (ABR) for Treated Bleeds During the Onset Period
Timepoint [9] 0 0
From Day 1 up to Day 28 or up to the last day of bleeding follow up (any day up to Day 28), whichever was the earliest
Secondary outcome [10] 0 0
Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events (TESAEs)
Timepoint [10] 0 0
From Baseline (Day 1) up to 15 months (i.e. 9 months treatment period + 6-months follow-up)

Eligibility
Key inclusion criteria
* Males, greater than or equal to (>=) 12 years of age.
* Severe hemophilia A or B with inhibitors.

* (Severity confirmed by a central laboratory where coagulation factor VIII (FVIII) level was less than (<)1% or factor IX (FIX) level was less than or equal to [<=]2% at Screening; Inhibitors defined as inhibitor titer of >=0.6 Bethesda units per milliliter [BU/mL] or as evidenced by medical records).
* A minimum of 6 bleeding episodes requiring BPA treatment within the last 6 months prior to screening.
* Willing and able to comply with the study requirements and to provide written informed consent and assent.
Minimum age
12 Years
Maximum age
No limit
Sex
Males
Can healthy volunteers participate?
No
Key exclusion criteria
* Known co-existing bleeding disorders other than hemophilia A or B.
* Antithrombin (AT) activity <60% at Screening.
* Co-existing thrombophilic disorder.
* Clinically significant liver disease.
* Active hepatitis C virus infection.
* HIV positive with a cluster of differentiation-4 count of <200 cells/microliter.
* History of arterial or venous thromboembolism.
* Inadequate renal function.
* History of multiple drug allergies or history of allergic reaction to an oligonucleotide or N-Acetylgalactosamine.
* History of intolerance to SC injection(s).
* Any other conditions or comorbidities that would make the participant unsuitable for enrollment or could interfere with participation in or completion of the study, per Investigator judgement.

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Parallel
Other design features
Phase
Phase 3
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
14/02/2018
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
23/06/2021
Sample size
Target
Accrual to date
Final
60
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 0 0
Investigational Site Number 6101 - Camperdown
Recruitment hospital [2] 0 0
Investigational Site Number 6104 - Clayton
Recruitment postcode(s) [1] 0 0
2050 - Camperdown
Recruitment postcode(s) [2] 0 0
3168 - Clayton
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
Arizona
Country [2] 0 0
United States of America
State/province [2] 0 0
California
Country [3] 0 0
United States of America
State/province [3] 0 0
Florida
Country [4] 0 0
United States of America
State/province [4] 0 0
Louisiana
Country [5] 0 0
United States of America
State/province [5] 0 0
Maryland
Country [6] 0 0
United States of America
State/province [6] 0 0
Nevada
Country [7] 0 0
United States of America
State/province [7] 0 0
Pennsylvania
Country [8] 0 0
Canada
State/province [8] 0 0
Montreal
Country [9] 0 0
China
State/province [9] 0 0
Beijing
Country [10] 0 0
China
State/province [10] 0 0
Guangzhou
Country [11] 0 0
China
State/province [11] 0 0
Hangzhou
Country [12] 0 0
China
State/province [12] 0 0
Shanghai
Country [13] 0 0
China
State/province [13] 0 0
Tianjin
Country [14] 0 0
France
State/province [14] 0 0
Lyon
Country [15] 0 0
France
State/province [15] 0 0
Rouen
Country [16] 0 0
Germany
State/province [16] 0 0
Frankfurt Am Main
Country [17] 0 0
Germany
State/province [17] 0 0
Leipzig
Country [18] 0 0
India
State/province [18] 0 0
Bangalore
Country [19] 0 0
India
State/province [19] 0 0
India
Country [20] 0 0
India
State/province [20] 0 0
Jaipur
Country [21] 0 0
India
State/province [21] 0 0
Lucknow
Country [22] 0 0
India
State/province [22] 0 0
Pune
Country [23] 0 0
India
State/province [23] 0 0
Vellore
Country [24] 0 0
Italy
State/province [24] 0 0
Florence
Country [25] 0 0
Italy
State/province [25] 0 0
Padua
Country [26] 0 0
Japan
State/province [26] 0 0
Japan
Country [27] 0 0
Japan
State/province [27] 0 0
Kita Kyushu-Shi
Country [28] 0 0
Korea, Republic of
State/province [28] 0 0
Daejeon
Country [29] 0 0
Korea, Republic of
State/province [29] 0 0
Seoul
Country [30] 0 0
Malaysia
State/province [30] 0 0
Kota Kinabalu
Country [31] 0 0
Malaysia
State/province [31] 0 0
Malaysia
Country [32] 0 0
South Africa
State/province [32] 0 0
Parktown
Country [33] 0 0
South Africa
State/province [33] 0 0
Polokwane
Country [34] 0 0
South Africa
State/province [34] 0 0
Port Elizabeth
Country [35] 0 0
Spain
State/province [35] 0 0
Madrid
Country [36] 0 0
Taiwan
State/province [36] 0 0
Changhua
Country [37] 0 0
Taiwan
State/province [37] 0 0
Taipei
Country [38] 0 0
Taiwan
State/province [38] 0 0
Taiwan
Country [39] 0 0
Turkey
State/province [39] 0 0
Adana
Country [40] 0 0
Turkey
State/province [40] 0 0
Akdeniz
Country [41] 0 0
Turkey
State/province [41] 0 0
Ankara
Country [42] 0 0
Turkey
State/province [42] 0 0
Istanbul
Country [43] 0 0
Turkey
State/province [43] 0 0
Izmir
Country [44] 0 0
Turkey
State/province [44] 0 0
Turkey
Country [45] 0 0
Ukraine
State/province [45] 0 0
Kyiv
Country [46] 0 0
Ukraine
State/province [46] 0 0
Lviv
Country [47] 0 0
United Kingdom
State/province [47] 0 0
London

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
Genzyme, a Sanofi Company
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
The purpose of this study was to determine the frequency of bleeding episodes in participants receiving fitusiran as prophylactic treatment of hemophilia compared to participants who were assigned to continue with their regular medication. In addition, the study assessed safety, quality of life, pharmacodynamics (PD), and pharmacokinetics (PK).
Trial website
https://clinicaltrials.gov/study/NCT03417102
Trial related presentations / publications
The Lancet Haematology. The role of conferences in tackling inequalities. Lancet Haematol. 2022 Feb;9(2):e81. doi: 10.1016/S2352-3026(22)00008-4. No abstract available.
Del Pozo Martin Y. 2021 ASH annual meeting. Lancet Haematol. 2022 Feb;9(2):e92-e93. doi: 10.1016/S2352-3026(21)00384-7. Epub 2021 Dec 16. No abstract available.
Public notes

Contacts
Principal investigator
Name 0 0
Clinical Sciences & Operations, MD
Address 0 0
Sanofi
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/study/NCT03417102