SAFE Study: Safety of aPCC Following Emicizumab Prophylaxis

ConditionHemophilia A
Trial statusRecruiting
Trial phasePhase 3
Trial typeInterventional
Biological sexAll
Age6+
SponsorEmory University

About this trial

The purpose of the aPCC-emicizumab safety study is to investigate the hemostatic efficacy as measured by thrombin generation, of a low personalized dose of aPCC (FEIBA) in children and adults with hemophilia A and inhibitors on emicizumab prophylaxis.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Moderately severe hemophilia A, defined as FVIII level <0.05 IU/mL before development of an inhibitor

Age ≥6 years of age at time of informed consent

Documented on 2 occasions a high titer inhibitor (>5 BU/mL) with a 72-hour washout within 2 years of enrollment

Parent/guardian (Legally Authorized Representative) or the patient has provided written informed consent

Disqualifiers

Inherited or acquired bleeding disorder other than hemophilia A excluding low VWF (>30% VWF:RCo or VWF:GP1bm)

Had an active bleed requiring factor therapy at screening

Previous or current treatment for thromboembolic disease or signs of thromboembolic disease (excluding previously resolved line-associated thrombosis)

Had a surgical procedure 14 days before screening

Trial design

Design model

Single group

Treatments tested in this trial

  • Emicizumab

    Drug

    HEMLIBRA® is a bispecific factor IXa- and factor X-directed antibody indicated for routine prophylaxis to prevent or reduce the frequency of bleeding episodes in adult and pediatric patients ages newborn and older with hemophilia A (congenital factor VIII deficiency) with or without factor VIII inhibitors.

  • FEIBA

    Drug

    FEIBA™ is an Anti-Inhibitor Coagulant Complex indicated for use in hemophilia patients with inhibitors for: control and prevention of bleeding episodes, perioperative management, and routine prophylaxis to prevent or reduce the frequency of bleeding episodes. The max dose allowed for aPCC will be 50 U/kg dose given at a single visit.

  • rFVIIa

    Drug

    rFVIIa is a coagulation factor VIIa concentrate indicated for the treatment and control of bleeding episodes occurring in adults and adolescents with hemophilia with inhibitors.

Treatment groups

5 Participants
are divided into 1 treatment group
Group A: Experimental treatmentExperimental treatment 3 interventions

Trial outcomes

Primary outcomes

1

Thrombin generation capacity after aPCC (FEIBA) infusion

Thrombin generation capacity from up to two escalating doses of aPCC will be measured using a thrombin generation assay at baseline and up to 30 minutes after FEIBA infusion.

Time frame
Baseline and up to 30 minutes after infusion

Secondary outcomes

1

Number of serious adverse events

Number of serious adverse events will be recorded

Time frame
up to 1 year
2

Number of serious bleeding episodes

Number of serious bleeding episodes will be recorded

Time frame
up to 1 year
3

Number of episodes of thrombotic events including thrombotic microangiopathy (TMA)

Number of episodes of thrombotic events including thrombotic microangiopathy (TMA) will be recorded

Time frame
up to 1 year

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Emory University

Lead sponsor

Takeda Pharmaceuticals North America, Inc.

Collaborator