A Study of the Safety and Immunogenicity of Repeated rhC1INH Administration
OPERA
An Open-label Exploratory Phase II Study of the Safety and Immunogenicity of Repeated "rhC1INH" Administration of 50 U/Kg in Patients With Hereditary C1 Inhibitor Deficiency ("HAE")
1 other identifier
interventional
25
2 countries
2
Brief Summary
Hereditary angioedema ("HAE") is a disease characterized by recurrent tissue swelling affecting various body locations. Recent literature shows that patients with frequent attacks may benefit from long-term prophylaxis. This study aims to evaluate the safety and prophylactic effect of weekly administrations of 50 IU/kg recombinant C1 Inhibitor ("rhC1INH").
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_2
Started Jun 2009
Shorter than P25 for phase_2
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 25, 2009
CompletedFirst Posted
Study publicly available on registry
February 26, 2009
CompletedStudy Start
First participant enrolled
June 1, 2009
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2010
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2010
CompletedResults Posted
Study results publicly available
January 31, 2013
CompletedJune 26, 2018
April 1, 2018
9 months
February 25, 2009
November 9, 2012
April 3, 2018
Conditions
Outcome Measures
Primary Outcomes (1)
HAE Attacks/Week
Prior to the treatment period, patients enrolled in the study, were asked about the amount of "HAE" attacks in the past 2 years, (calculated to attacks/week), this number is defined as "Historical". During the treatment period, patients received a dose of 50 IU/kg of "rhC1INH" administered by slow "IV" injection over 4 to 5 minutes, once a week during an eight week period. The amount of attacks during this period is defined as "Prophylaxis" (calculated to attacks/week).
8 weeks
Secondary Outcomes (1)
The Evaluation of Pharmacokinetic/ Pharmacodynamic ("PK/PD")Parameters.
8 weeks
Study Arms (1)
Recombinant Human C1 Inhibitor
OTHERWeekly administration of 50 IU/kg Recombinant Human C1 Inhibitor
Interventions
50 IU/kg "rhC1INH", "IV" injection over 4 to 5 minutes, once weekly over an 8-week treatment period.
Eligibility Criteria
You may qualify if:
- Aged at least 18 years
- Signed informed consent
- Comfirmed diagnosis of HAE with baseline plasma level of functional C1INH activity of less than 50% of normal, and/or proven HAE ,mutation in C1INH gene.
You may not qualify if:
- A history of anaphylaxis or severe allergy (i.e. requiring medication) to food, proteins and/or drugs.
- A history of allergic reactions to C1INH products or rabbit protein.
- Any reported SAE related to study drug administration (withdrawal criterium)
- Elevated IgE against rabbit dander (\>0.35 kU/L; ImmunoCap assay; Phadia)
- A diagnosis of acquired C1INH deficiency.
- Woman of child bearing potential, pregnancy or breast-feeding
- previous treatment within the last 3 months with plasma-derived C1INH
- Any clinically significant abnormality in the routine haematology, biochemistry and urinalysis
- Any condition or treatment that in the opinion of the investigator might interfere with the evaluation of the study objectives.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
For information on sites, please contact Pharming Technologies
Leiden, Netherlands
Emergency County Hospital, Internal Medicin Clinica, Allergology-Immunology Department
Târgu Mureş, 541103, Romania
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Medical Affairs Department
- Organization
- Pharming Technologies BV
Study Officials
- STUDY CHAIR
Bruno Giannetti, MD
COO Pharming
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 25, 2009
First Posted
February 26, 2009
Study Start
June 1, 2009
Primary Completion
March 1, 2010
Study Completion
April 1, 2010
Last Updated
June 26, 2018
Results First Posted
January 31, 2013
Record last verified: 2018-04