A Study to Investigate CSL312 in Subjects With Hereditary Angioedema (HAE)
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ClinicalTrials.gov Identifier: NCT03712228 |
Recruitment Status :
Completed
First Posted : October 19, 2018
Results First Posted : November 8, 2022
Last Update Posted : November 8, 2022
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Study Type | Interventional |
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Study Design | Allocation: Randomized; Intervention Model: Parallel Assignment; Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor); Primary Purpose: Prevention |
Condition |
Hereditary Angioedema |
Interventions |
Biological: Factor XIIa antagonist monoclonal antibody Drug: Placebo |
Enrollment | 44 |
Recruitment Details | |
Pre-assignment Details | Treatment Period 1 participants were assigned to 1 of 5 treatment arms. Treatment period 2 participants that completed Treatment Period 1 were assigned to either CSL312 (medium) or CSL312 (high) and could be up-titrated from CSL312 (medium) to CSL312 (med/high), if necessary. They were down-titrated from CSL312 (high) to CSL312 (medium). Only 2 subjects from the CSL312 (FXII/PLG HAE) arm were treated with CSL312 in Treatment Period 2. |
Arm/Group Title | Placebo | CSL312 (Low) | CSL312 (Med) | CSL312 (High) | CSL312 (Med/High) | CSL312 (FXII/PLG HAE) |
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Subjects with C1-INH HAE (Hereditary angioedema with C1-esterase inhibitor deficiency) receiving buffer only Placebo: Buffer without active ingredient |
Subjects with C1-INH HAE (Hereditary angioedema with C1-esterase inhibitor deficiency) receiving low dose CSL312 Factor XIIa antagonist monoclonal antibody: Factor XIIa antagonist monoclonal antibody for intravenous and subcutaneous use |
Subjects with C1-INH HAE (Hereditary angioedema with C1-esterase inhibitor deficiency) receiving medium dose CSL312 Factor XIIa antagonist monoclonal antibody: Factor XIIa antagonist monoclonal antibody for intravenous and subcutaneous use |
Subjects with C1-INH HAE (Hereditary angioedema with C1-esterase inhibitor deficiency) receiving high dose CSL312 Factor XIIa antagonist monoclonal antibody: Factor XIIa antagonist monoclonal antibody for intravenous and subcutaneous use |
Subjects with C1-INH HAE (Hereditary angioedema with C1-esterase inhibitor deficiency) receiving medium/high dose CSL312 Factor XIIa antagonist monoclonal antibody: Factor XIIa antagonist monoclonal antibody for intravenous and subcutaneous use |
Subjects with FXII/PLG HAE (Hereditary Angioedema with Normal C1-esterase Inhibitor and Factor XII or Plasminogen Gene Mutation) receiving high dose CSL312 |
Period Title: Treatment Period 1 | ||||||
Started | 8 | 9 | 8 | 7 | 6 | 6 |
Completed | 8 | 9 | 8 | 7 | 6 | 5 |
Not Completed | 0 | 0 | 0 | 0 | 0 | 1 |
Reason Not Completed | ||||||
Lack of Efficacy | 0 | 0 | 0 | 0 | 0 | 1 |
Period Title: Treatment Period 2 | ||||||
Started | 0 | 0 | 20 | 18 | 0 | 2 |
Completed | 0 | 0 | 20 | 16 | 0 | 2 |
Not Completed | 0 | 0 | 0 | 2 | 0 | 0 |
Reason Not Completed | ||||||
Pregnancy | 0 | 0 | 0 | 1 | 0 | 0 |
Withdrawal by Subject | 0 | 0 | 0 | 1 | 0 | 0 |
Arm/Group Title | Placebo | CSL312 (Low) | CSL312 (Med) | CSL312 (High) | CSL312 (Med/High) | CSL312 (FXII/PLG HAE) | Total | |
---|---|---|---|---|---|---|---|---|
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Subjects with C1-INH HAE (Hereditary angioedema with C1-esterase inhibitor deficiency) receiving buffer only Placebo: Buffer without active ingredient |
Subjects with C1-INH HAE (Hereditary angioedema with C1-esterase inhibitor deficiency)receiving low dose CSL312 Factor XIIa antagonist monoclonal antibody: Factor XIIa antagonist monoclonal antibody for intravenous and subcutaneous use |
Subjects with C1-INH HAE (Hereditary angioedema with C1-esterase inhibitor deficiency) receiving medium dose CSL312 Factor XIIa antagonist monoclonal antibody: Factor XIIa antagonist monoclonal antibody for intravenous and subcutaneous use |
Subjects with C1-INH HAE (Hereditary angioedema with C1-esterase inhibitor deficiency)receiving high dose CSL312 Factor XIIa antagonist monoclonal antibody: Factor XIIa antagonist monoclonal antibody for intravenous and subcutaneous use |
Subjects with C1-INH HAE (Hereditary angioedema with C1-esterase inhibitor deficiency) receiving medium/high dose CSL312 Factor XIIa antagonist monoclonal antibody: Factor XIIa antagonist monoclonal antibody for intravenous and subcutaneous use |
Subjects with FXII/PLG HAE (Hereditary Angioedema with Normal C1-esterase Inhibitor and Factor XII or Plasminogen Gene Mutation) receiving high dose CSL312 | Total of all reporting groups | |
Overall Number of Baseline Participants | 8 | 9 | 8 | 7 | 6 | 6 | 44 | |
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The Intent-to-Treat (ITT) population consisted of all subjects who provided informed consent, underwent any study screening procedure, and who were assigned to treatment in Treatment Period 1 or to treatment in Treatment Period 2, regardless of whether they received investigational product.
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Age, Categorical
Measure Type: Count of Participants Unit of measure: Participants |
||||||||
Number Analyzed | 8 participants | 9 participants | 8 participants | 7 participants | 6 participants | 6 participants | 44 participants | |
<=18 years |
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
|
Between 18 and 65 years |
8 100.0%
|
9 100.0%
|
8 100.0%
|
6 85.7%
|
6 100.0%
|
6 100.0%
|
43 97.7%
|
|
>=65 years |
0 0.0%
|
0 0.0%
|
0 0.0%
|
1 14.3%
|
0 0.0%
|
0 0.0%
|
1 2.3%
|
|
Sex: Female, Male
Measure Type: Count of Participants Unit of measure: Participants |
||||||||
Number Analyzed | 8 participants | 9 participants | 8 participants | 7 participants | 6 participants | 6 participants | 44 participants | |
Female |
4 50.0%
|
7 77.8%
|
2 25.0%
|
5 71.4%
|
3 50.0%
|
6 100.0%
|
27 61.4%
|
|
Male |
4 50.0%
|
2 22.2%
|
6 75.0%
|
2 28.6%
|
3 50.0%
|
0 0.0%
|
17 38.6%
|
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Ethnicity (NIH/OMB)
Measure Type: Count of Participants Unit of measure: Participants |
||||||||
Number Analyzed | 8 participants | 9 participants | 8 participants | 7 participants | 6 participants | 6 participants | 44 participants | |
Hispanic or Latino |
1 12.5%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
1 16.7%
|
0 0.0%
|
2 4.5%
|
|
Not Hispanic or Latino |
7 87.5%
|
9 100.0%
|
8 100.0%
|
7 100.0%
|
5 83.3%
|
6 100.0%
|
42 95.5%
|
|
Unknown or Not Reported |
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
|
Race (NIH/OMB)
Measure Type: Count of Participants Unit of measure: Participants |
||||||||
Number Analyzed | 8 participants | 9 participants | 8 participants | 7 participants | 6 participants | 6 participants | 44 participants | |
American Indian or Alaska Native |
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
|
Asian |
0 0.0%
|
0 0.0%
|
0 0.0%
|
2 28.6%
|
1 16.7%
|
0 0.0%
|
3 6.8%
|
|
Native Hawaiian or Other Pacific Islander |
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
|
Black or African American |
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
1 16.7%
|
0 0.0%
|
1 2.3%
|
|
White |
7 87.5%
|
9 100.0%
|
8 100.0%
|
5 71.4%
|
4 66.7%
|
6 100.0%
|
39 88.6%
|
|
More than one race |
1 12.5%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
1 2.3%
|
|
Unknown or Not Reported |
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
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Region of Enrollment
Measure Type: Number Unit of measure: Participants |
Number Analyzed | 8 participants | 9 participants | 8 participants | 7 participants | 6 participants | 6 participants | 44 participants |
Canada | 1 | 3 | 2 | 1 | 0 | 0 | 7 | |
United States | 4 | 2 | 0 | 2 | 2 | 1 | 11 | |
Israel | 0 | 2 | 2 | 1 | 2 | 2 | 9 | |
Germany | 3 | 2 | 4 | 3 | 2 | 3 | 17 |
Name/Title: | Study Director |
Organization: | CSL Behring |
Phone: | 610-878-4000 |
EMail: | clinicaltrials@cslbehring.com |
Responsible Party: | CSL Behring |
ClinicalTrials.gov Identifier: | NCT03712228 |
Other Study ID Numbers: |
CSL312_2001 2018-000605-24 ( EudraCT Number ) |
First Submitted: | October 17, 2018 |
First Posted: | October 19, 2018 |
Results First Submitted: | October 13, 2022 |
Results First Posted: | November 8, 2022 |
Last Update Posted: | November 8, 2022 |