- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05911763
A Study to Evaluate Impact of Efanesoctocog Alfa on Long-term Joint Health in Participants With Hemophilia A
Prospective, Observational , Multicenter Study of Effectiveness of Efanesoctocog Alfa on Long-term Joint Health in Patients With Hemophilia A
This is a prospective, observational, multi-center longitudinal cohort study to describe the real-world effectiveness, safety and treatment usage of efanesoctocog alfa in patients with hemophilia A treated per standard of care in the US and Japan.
Patients will be enrolled in the study after the introduction of efanesoctocog alfa in the hemophilia treatment landscape in each study country. Decision to initiate treatment with commercially available efanesoctocog alfa will be made by the treating physician independently from the decision to include patients in the study. No study medication is provided. The data related to efanesoctocog alfa effectiveness, safety and usage will be collected prospectively during routine visits (expected annual/semi-annual visits) for up to 5 years following enrollment /treatment initiation.
Study Overview
Study Type
Enrollment (Estimated)
Contacts and Locations
Study Contact
- Name: Trial Transparency email recommended (Toll free number for US & Canada)
- Phone Number: Option 6 1800633-1610
- Email: contact-us@sanofi.com
Study Locations
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California
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Los Angeles, California, United States, 90007
- Recruiting
- Orthopedic Institute for Children-Site Number: 8400004
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Orange, California, United States, 92868-4306
- Recruiting
- Center for Inherited Blood Disorders (CIBD)-Site Number:8400001
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Colorado
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Aurora, Colorado, United States, 80045-7202
- Recruiting
- University of Colorado Hemophilia and Thrombosis Center-Site Number: 8400019
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Illinois
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Peoria, Illinois, United States, 61614-2868
- Recruiting
- Bleeding and Clotting Disorders Institute-Site Number:8400005
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Indiana
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Indianapolis, Indiana, United States, 46260-1920
- Recruiting
- Indiana Hemophilia and Thrombosis Center-Site Number: 8400013
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Massachusetts
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Boston, Massachusetts, United States, 02114-2621
- Recruiting
- Massachusetts General Hospital-Site Number: 8400017
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Boston, Massachusetts, United States, 02215-5418
- Recruiting
- Dana Farber and Boston Children's Hospital-Site Number: 8400031
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Nevada
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Las Vegas, Nevada, United States, 89135-3011
- Recruiting
- Alliance for Childhood Diseases-Site Number:8400007
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Tennessee
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Nashville, Tennessee, United States, 37232-0011
- Recruiting
- Vanderbilt University Medical Center Site Number : 8400003
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
- Have a diagnosis of hemophilia A
- Patients starting efanesoctocog alfa treatment as per standard of care no more than one month prior to the enrollment date, for either on demand or prophylaxis. Patients starting efanesoctocog alfa treatment for a surgery event may also be enrolled only if the treatment is prescribed at enrollment.
- Physician's decision to treat the patient with efanesoctocog alfa is made prior to and independently of participation in the study.
- Signed and dated informed consent provided by the patient, or by the patient's legally acceptable representative for patients under the legal age before any study-related activities are undertaken. Assent should be obtained for pediatric patients according to local regulations.
Exclusion Criteria:
Diagnosed with other known bleeding disorder
- Participation in an investigational medicinal product trial at enrollment visit, or intake of an Investigational Medicinal Product within 3 months prior to inclusion in this study
- Current diagnosis of a FVIII inhibitor, defined as inhibitor titer ≥0.60 BU/mL
"The above information is not intended to contain all considerations relevant to a potential participation in a clinical trial."
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Cohort A (Prophylactic treatment)
All participants on efanesoctocog alfa prophylactic treatment fulfilling the overall study inclusion/exclusion criteria. The prophylactic cohort will include the following sub-cohorts: Sub-cohort A1 (Joint imaging): Participants with severe hemophilia A and joint imaging by Hemophilia Early Arthropathy Detection with Ultrasound (HEAD-US) or Joint Tissue Activity and Damage Exam (JADE) protocol performed within 6 months of initiating treatment with efanesoctocog alfa or within 3 months after initiating treatment with efanesoctocog alfa available. Sub-cohort A2 (Children with no prior joint damage):Participants with severe hemophilia A who have no prior joint damage |
Given per investigator's discretion
Other Names:
|
Cohort B (On-Demand treatment)
Participants receiving on-demand treatment with efanesoctocog alfa who fulfil the overall study inclusion/exclusion criteria
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Given per investigator's discretion
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change from baseline in Annualized joint bleeding rate (AjBR) for treated bleeds
Time Frame: Up to 5 years
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Data will be reported for the effectiveness of efanesoctocog alfa prophylaxis on clinical joint status over 5-years for prophylactic cohort
|
Up to 5 years
|
Change from baseline in Annualized joint bleeding rate (AjBR) for all (treated and untreated) bleeds
Time Frame: Up to 5 years
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Data will be reported for the effectiveness of efanesoctocog alfa prophylaxis on clinical joint status over 5-years for prophylactic cohort
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Up to 5 years
|
Number of Target joint development, resolution and/or recurrence
Time Frame: Up to 5 years
|
Data will be reported for the effectiveness of efanesoctocog alfa prophylaxis on clinical joint status over 5-years for prophylactic coho
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Up to 5 years
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change from baseline in the Hemophilia Joint Health Score (HJHS v2.1) total/domains scores
Time Frame: At 1, 2, 3, 4, 5 years
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HJHS total/domain scores will be reported for prophylactic cohorts (A1 ad A2)
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At 1, 2, 3, 4, 5 years
|
Annual Bleeding Rate (ABR) by type for treated bleeds
Time Frame: At 1, 2, 3, 4, 5 years
|
Data will be reported for prophylactic cohorts (A1 and A2)
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At 1, 2, 3, 4, 5 years
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ABR by type all (treated and untreated) bleeds
Time Frame: At 1, 2, 3, 4, 5 years
|
Data will be reported for prophylactic cohorts (A1 and A2)
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At 1, 2, 3, 4, 5 years
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ABR by location for treated bleeds
Time Frame: At 1, 2, 3, 4, 5 years
|
Data will be reported for prophylactic cohorts (A1 and A2)
|
At 1, 2, 3, 4, 5 years
|
ABR by location for all (treated and untreated) bleeds
Time Frame: At 1, 2, 3, 4, 5 years
|
Data will be reported for prophylactic cohorts (A1 and A2)
|
At 1, 2, 3, 4, 5 years
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ABR for all bleeding episodes (including untreated bleeding episodes)
Time Frame: At 1, 2, 3, 4, 5 years
|
Data will be reported for prophylactic cohorts (A1 and A2)
|
At 1, 2, 3, 4, 5 years
|
Percentage of patients with zero joint bleeds
Time Frame: At 1, 2, 3, 4, 5 years
|
Data will be reported for prophylactic cohorts (A1 and A2)
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At 1, 2, 3, 4, 5 years
|
Annualized factor consumption per participant (IU/kg) assessed by prescription during the follow-up period.
Time Frame: At 1, 2, 3, 4, 5 years
|
Data will be reported for prophylactic cohorts (A1 and A2)
|
At 1, 2, 3, 4, 5 years
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Annualized injection frequency per participant (assessed by prescription) during the follow- up period
Time Frame: At 1, 2, 3, 4, 5 years
|
Data will be reported for prophylactic cohorts (A1 and A2)
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At 1, 2, 3, 4, 5 years
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Treatment adherence (%) as judged by the physician during the follow-up period
Time Frame: At 1, 2, 3, 4, 5 years
|
Data will be reported for prophylactic cohorts (A1 and A2)
|
At 1, 2, 3, 4, 5 years
|
Number of injections of efanesoctocog alfa to treat a bleeding episode.
Time Frame: At 1, 2, 3, 4, 5 years
|
Data will be reported for prophylactic cohorts (Sub Cohorts A1 and A2)
|
At 1, 2, 3, 4, 5 years
|
Total dose of efanesoctocog alfa to treat a bleeding episode.
Time Frame: At 1, 2, 3, 4, 5 years
|
Data will be reported for prophylactic cohorts (Sub Cohorts A1 and A2)
|
At 1, 2, 3, 4, 5 years
|
Number of injections of efanesoctocog alfa to treat a bleeding episode
Time Frame: At 1, 2, 3, 4, 5 years
|
Data will be reported for On-demand cohort
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At 1, 2, 3, 4, 5 years
|
Total dose of efanesoctocog alfa to treat a bleeding episode
Time Frame: At 1, 2, 3, 4, 5 years
|
Data will be reported for On-demand cohort
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At 1, 2, 3, 4, 5 years
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Percentage of bleeding episodes treated with a single injection of efanesoctocog alfa.
Time Frame: At 1, 2, 3, 4, 5 years
|
Data will be reported for On-demand cohort
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At 1, 2, 3, 4, 5 years
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Occurrence of a change in treatment regimen (on-demand to prophylactic or prophylactic to on-demand) at baseline and follow-up.
Time Frame: At 1, 2, 3, 4, 5 years
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Data will be reported for On-demand cohort
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At 1, 2, 3, 4, 5 years
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Change from baseline in Hemophilia Early Arthropathy Detection with Ultrasound (HEAD-US) total/domain scores
Time Frame: At 1, 2, 3, 4 and 5 years
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HEAD-US total/domain scores will be reported for joint imaging sub cohort
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At 1, 2, 3, 4 and 5 years
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Change from baseline in Hemophilia Early Arthropathy Detection with Joint Tissue Activity and Damage exam (JADE) musculoskeletal ultrasound (MSKUS) (JADE MSKUS)
Time Frame: At 1, 2, 3, 4 and 5 years
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Data will be reported for consenting participants from the joint imaging sub-cohort
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At 1, 2, 3, 4 and 5 years
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Change from baseline in synovial hypertrophy by change in mm thickness AND/OR HEAD-US synovitis domain, AND/OR by JADE MSKUS synovial hypertrophy +/- power doppler signal
Time Frame: At 6 months, 1, 2, 3, 4 and 5 years
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Data will be reported from the consenting participants from the joint imaging sub-cohort
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At 6 months, 1, 2, 3, 4 and 5 years
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Occurrence of adverse events (AEs) and serious adverse events (SAEs)
Time Frame: Over 5 year period
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The safety and tolerability of efanesoctocog alfa over 5 years evaluated in all participants
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Over 5 year period
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Development of inhibitors (neutralizing antibodies directed against factor FVIII as determined via the Nijmegen modified Bethesda assay.
Time Frame: Over 5 year period
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The safety and tolerability of efanesoctocog alfa over 5 years assessed in all participants
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Over 5 year period
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Change from baseline in Patient-Reported Outcomes Measurement Information System (PROMIS) pain intensity 3a questionnaire (adults)
Time Frame: At 3 months, 6 months, 1, 2, 3, 4 and 5 years
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Effectiveness of efanesoctocog alfa assessed per participants' PROs in all participants
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At 3 months, 6 months, 1, 2, 3, 4 and 5 years
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Change from baseline in Canadian Hemophilia Outcomes-Kids' Life Assessment Tool (CHO-KLAT) 3.0 (boys ≤18 years old) questionnaire (including Parent Proxy)
Time Frame: At 1, 2, 3, 4 and 5 years
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Effectiveness of efanesoctocog alfa assessed per participants' PROs in all participants
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At 1, 2, 3, 4 and 5 years
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Change from baseline in the occurrence of inpatient and outpatient visits, and length of hospital stay related to hemophilia A
Time Frame: At 1, 2, 3, 4 and 5 years
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Healthcare resource use (HCRU) in efanesoctocog alfa related to hemophilia A over a 5-year period
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At 1, 2, 3, 4 and 5 years
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Hemostatic response/physician reported during peri-operative period for surgery (major, minor) with efanesoctocog alfa.
Time Frame: Over a 5 year period
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Data reported to describe the usage and effectiveness of efanesoctocog alfa during the perioperative period
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Over a 5 year period
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Number of injections required to maintain hemostasis during perioperative period for surgery (major, minor)
Time Frame: Over 5 year period
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Data reported to describe the usage and effectiveness of efanesoctocog alfa during the perioperative period
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Over 5 year period
|
Dose per injection required to maintain hemostasis during perioperative period for surgery (major, minor)
Time Frame: Over 5 year period
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Data reported to describe the usage and effectiveness of efanesoctocog alfa during the perioperative period
|
Over 5 year period
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Total efanesoctocog alfa consumption (IU) during perioperative period for surgery (major, minor)
Time Frame: Over 5 year period
|
Data reported to describe the usage and effectiveness of efanesoctocog alfa during the perioperative period
|
Over 5 year period
|
Number of blood component transfusions used during perioperative period for surgery
Time Frame: Over 5 year Period
|
Data reported to describe the usage and effectiveness of efanesoctocog alfa during the perioperative period
|
Over 5 year Period
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Type of blood component transfusions used during perioperative period for surgery
Time Frame: Over 5 year period
|
Data reported to describe the usage and effectiveness of efanesoctocog alfa during the perioperative period
|
Over 5 year period
|
Estimated blood loss (ml) (intraoperative and post-operative period) for major surgery
Time Frame: Over 5 year period
|
Data reported to describe the usage and effectiveness of efanesoctocog alfa during the perioperative period
|
Over 5 year period
|
Number of transfusions required for surgery (intraoperative and post-operative period)
Time Frame: Over 5 year period
|
Data reported to describe the usage and effectiveness of efanesoctocog alfa during the perioperative period
|
Over 5 year period
|
Duration of hospitalization (major, minor)
Time Frame: Over 5 years period
|
Data reported to describe the usage and effectiveness of efanesoctocog alfa during the perioperative period.
|
Over 5 years period
|
Dose per injection required to maintain hemostasis during perioperative period for surgery (major, minor)
Time Frame: Over a 5 year period
|
Data reported to describe the usage and effectiveness of efanesoctocog alfa during the perioperative period for On-demand Cohort
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Over a 5 year period
|
Collaborators and Investigators
Sponsor
Investigators
- Study Director: Clinical Sciences & Operations, Sanofi
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- OBS17523
- U1111-1281-8840 (Registry Identifier: ICTRP)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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