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C1-inhibitor improves efficacy of red blood cell transfusion in patients suffering from autoimmune hemolytic anemia – an open-labeled pilot trial

C1-inhibitor improves efficacy of red blood cell transfusion in patients suffering from autoimmune hemolytic anemia – an open-labeled pilot trial - C1-inhibitor improves efficacy of red blood cell transfusion in patients suffering from autoimmune h

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2012-003710-13-NL
Enrollment
10
Registered
2013-03-21
Start date
2013-03-21
Completion date
Unknown
Last updated
2021-10-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

AutoImmune Hemolytic Anemia MedDRA version: 20.0 Level: LLT Classification code 10003825 Term: Autoimmune hemolytic anemia System Organ Class: 100000004851

Interventions

Trade Name: CINRYZE® (C1 esterase inhibitor [human]) Pharmaceutical Form: Concentrate and solvent for solution for infusion

Sponsors

Academic Medical Center
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: • Positive (=1+) monospecific antiglobulin test for C3b and/or C3d with/without positivity for IgM or IgG • Indication for a transfusion with at least 2 red packed cell concentrates based on the clinical assessment by the hematologist in charge • Hemoglobin value at least =65 years) yes F.1.3.1 Number of subjects for this age range 1

Exclusion criteria

Exclusion criteria: • History of arterial and/or venous thromboembolic events in the absence of an actual treatment with Vitamin K-antagonists • Concomitant use of therapeutic doses of heparin • Female patients who are pregnant or breast feeding or adults of reproductive potential who are not using effective birth control methods. If barrier contraceptives are being used, these must be continued throughout the trial by both sexes. Oral contraceptives only are not acceptable. • Patients with known HIV seropositivity or chronic active hepatitis • Patients who have any severe and/or uncontrolled medical condition or other conditions that could affect their participation in the study such as: – cerebrovascular accidents = 6 months before study drug start – uncontrolled hypertension

Design outcomes

Secondary

MeasureTime frame
Secondary end point(s): not applicable;Timepoint(s) of evaluation of this end point: not applicable

Primary

MeasureTime frame
Main Objective: to test whether co-administration of C1-inh concentrate in patients suffering from AIHA needing RBC transfusion • improves recovery of RBC transfusion • inhibits complement activation and deposition on RBC via the classical pathway of complement • is safe? ;Secondary Objective: to investigate whether co-administration of C1-inhibitor concentrate in patients suffering from AIHA needing RBC transfusion • attenuates the pro-inflammatory response in AIHA • affects the response to the basic treatment targeting autoantibody production ;Primary end point(s): • improves recovery of RBC transfusion • inhibits complement activation and deposition on RBC via the classical pathway of complement ;Timepoint(s) of evaluation of this end point: • At entry: laboratory tests within 4 hours before start of treatment, before and after every dose C1-inh as well as 48 hours, 60 hours and 72 hours after the first dose NB: in case that the time between study entry and start treatment exceeds 4 hours, laboratory tests performed at study entry must be repeated

Countries

Netherlands

Contacts

Public ContactM. Spiering

Academic Medical Center

m.spiering@amc.nl0031205665785

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 9, 2026