CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 222 enrolled
Drug / intervention
BT524 +1 morebiological
Likely dose
FFP/Cryo 15 mLfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03444324
NCT03444324Phase 3Completed

A Randomized, Active-controlled, Multicenter, Phase III Study Investigating Efficacy and Safety of Intra-operative Use of BT524 (Human Fibrinogen Concentrate) in Subjects Undergoing Major Spinal or Abdominal Surgery (AdFIrst)

Biotest·interventional·Posted Feb 23, 2018·Updated Jun 13, 2025

In Brief

A Phase 3 clinical trial evaluating BT524 and FFP/Cryo for Bleeding Disorder and Hypofibrinogenemia; Acquired. Completed, enrolled 222 participants across 19 sites in 7 countries.

Detailed Summary

The main purpose of this study was to demonstrate the efficacy and safety of intraoperative use of fibrinogen concentrate BT524, as a complementary therapy for the management of uncontrolled severe hemorrhage in acquired hypofibrinogenemia. This non-inferiority study focused on the primary objective of demonstrating that BT524 is non-inferior that means not worse than the comparator fresh frozen plasma/cryoprecipitate in reducing intraoperative blood loss when administered intravenously in subjects with acquired hypofibrinogenemia undergoing elective major spinal or abdominal surgery.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesBelgium, Czechia, Germany, Poland, Spain, Switzerland, United Kingdom

Timeline

Phase 3CompletedFinished
201820192020202120222023202420252026
First PostedFeb 23, 2018
Enrollment StartApr 3, 2018
Primary CompletionSep 25, 2023
Study CompletionNov 21, 2023
TodayJul 2, 2026
Enrollment to primary: 5.5 yearsPosted 8.4 years ago

Interventions

BT524biological

BT524 was administered intravenously at a patient specific dosage depending on the type of surgery, the extent of bleeding and the subject's clinical condition.

FFP/Cryobiological

FFP/Cryo was administered intravenously; dosage according to local standards. FFP, 15 mL per kg body weight (BW); Cryoprecipitate, fixed dose of 10 units.