Safety and Efficacy of Fibryga in Congenital Fibrinogen Deficiency

June 18, 2025 updated by: Octapharma

Post-marketing Observational Study on the Safety and Efficacy of Fibryga in Congenital Fibrinogen Deficiency

Open-label, Uncontrolled, Multicenter Observational Study on the Safety and Efficacy of Fibryga in Congenital Fibrinogen Deficiency

Study Overview

Status

Terminated

Intervention / Treatment

Detailed Description

There is a need to increase the body of data on treatment effectiveness and safety in the ultra-rare setting of congenital fibrinogen deficiency. Real-world evidence (RWE) derived from non-interventional studies can describe product utilization, demonstrate value, and facilitate benefit-risk assessments; RWE can only be fully assessed once a product is launched and used in a real-life setting.

This post-marketing, observational study is designed to collect information concerning safety, efficacy, and outcomes of Fibryga administration in routine clinical use in patients of any age with congenital afibrinogenemia or hypofibrinogenemia. Documentation of the administration of Fibryga in clinical practice for the treatment of both minor and major bleeding events (BEs) will not only enhance the knowledge on the efficacy and safety profile of Fibryga, but will also gather information that cannot be obtained in the same way in controlled clinical studies. These observational data will support the safety and efficacy data generated with Fibryga in good clinical practice (GCP) clinical studies, providing benefit for both physicians and patients.

Study Type

Observational

Enrollment (Actual)

7

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Ostrava, Czechia
        • Fakultni Nemocnice Ostrava
      • Duisburg, Germany
        • Gerinnungszentrum Rhein-Ruhr
      • Frankfurt, Germany
        • Medizinische Klinik 2 / Institut für Transfusionsmedizin Universitätsklinikum
      • Hamburg, Germany
        • Gerinnungszentrum Hochtaunus

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Approximately 25 patients with a documented diagnosis of congenital afibrinogenemia or hypofibrinogenemia are planned to be documented in this study

Description

Inclusion Criteria:

  • Patients of any age with a documented diagnosis of congenital afibrinogenemia or hypofibrinogenemia expected to require on-demand in-hospital treatment for BEs with Fibryga

Exclusion Criteria:

  • Bleeding disorder other than congenital fibrinogen deficiency
  • Patients with acquired fibrinogen deficiency or dysfibrinogenemia
  • Suspicion of an anti-fibrinogen inhibitor as indicated by previous in vivo recovery, if available, of <0.5 (mg/dL)/(mg/kg); there is currently no standard test for inhibitors
  • Participation in an interventional clinical study at the time of or within 4 weeks prior to enrolment

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Fibryga
Fibryga (human plasma-derived fibrinogen concentrate)
Human plasma-derived fibrinogen concentrate

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The incidence of thromboembolic adverse drug reactions (ADRs)
Time Frame: Day 0-28
The incidence of thromboembolic ADRs in patients receiving Fibryga for on-demand treatment of bleeding, including major bleeding, will be documented
Day 0-28

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Hemostatic efficacy of Fibryga for all bleeding events (BEs) collected in the study will be assessed by the investigator using a 4-point hemostatic efficacy scale
Time Frame: Within 2-24 hours following treatment of BEs
The hemostatic efficacy of Fibryga for all BEs collected in the study will be assessed by the investigator using a 4-point hemostatic efficacy scale including the four items: 'excellent,' 'good,' moderate,' and 'none'. These data will be transformed into a dichotomous result, with 'treatment success-yes' defined as a rating of 'excellent' or 'good' and 'treatment success-no' defined as a rating of 'moderate' or 'none'.
Within 2-24 hours following treatment of BEs
Dosage of Fibryga
Time Frame: Within 2-24 hours following treatment of BEs
Fibryga will be individually dosed as per the locally approved package insert. Actual dosage administered will be documented
Within 2-24 hours following treatment of BEs
Duration of BEs
Time Frame: Within 2-24 hours following treatment of BEs
Details of BE duration will be documented
Within 2-24 hours following treatment of BEs
Incidence of treatment-emergent adverse events (safety)
Time Frame: Day 0-28
All ADRs in patients receiving Fibryga for on-demand treatment of BEs, including major BEs, will be documented
Day 0-28

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 28, 2021

Primary Completion (Actual)

May 14, 2025

Study Completion (Actual)

May 14, 2025

Study Registration Dates

First Submitted

December 19, 2018

First Submitted That Met QC Criteria

January 3, 2019

First Posted (Actual)

January 4, 2019

Study Record Updates

Last Update Posted (Actual)

June 24, 2025

Last Update Submitted That Met QC Criteria

June 18, 2025

Last Verified

June 1, 2025

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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