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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: C1 Inhibitor Deficiency Clear all
Active, not recruiting Phase 2 Interventional

A Phase 2 in Adult Subjects With Hereditary Angioedema

NCT06846398
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
BW-20805
Drug
Lead sponsor
Shanghai Argo Biopharmaceutical Co., Ltd.
Industry
Eligibility
18 Years to 70 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
5
States / cities
Silver Spring, Maryland • St Louis, Missouri • Durham, North Carolina + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Sep 23, 2026, 5:02 PM EDT
Recruiting Phase 3 Interventional

Study of IV Human Plasma-derived C1 Esterase Inhibitor Concentrate in Patients With Congenital C1-INH Deficiency for Treatment and Pre-procedure Preventing of Acute Hereditary Angioedema Attacks

NCT06361537
View directory record Official record
Conditions
Acute Hereditary Angio Edema
Interventions
OCTA-C1-INH, Placebo
Drug · Other
Lead sponsor
Octapharma
Industry
Eligibility
2 Years and older
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
3
States / cities
Centennial, Colorado • Farmington Hills, Michigan • Toledo, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Sep 23, 2026, 5:02 PM EDT
Completed Phase 3 Interventional Results available

A Study to Evaluate the Long-term Clinical Safety and Efficacy of Subcutaneously Administered C1-esterase Inhibitor in the Prevention of Hereditary Angioedema

NCT02316353
View directory record Official record
Conditions
Hereditary Angioedema Types I and II
Interventions
C1-esterase inhibitor
Biological
Lead sponsor
CSL Behring
Industry
Eligibility
6 Years and older
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
12
States / cities
Birmingham, Alabama • Scottsdale, Arizona • La Jolla, California + 9 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2018 · Synced Sep 23, 2026, 5:02 PM EDT
Completed Phase 3 Interventional Results available

A Study to Evaluate the Clinical Efficacy and Safety of Subcutaneously Administered C1-esterase Inhibitor in the Prevention of Hereditary Angioedema

NCT01912456
View directory record Official record
Conditions
Hereditary Angioedema Types I and II
Interventions
Low-volume C1-esterase inhibitor, Higher-volume C1-esterase inhibitor, Low-volume placebo, Higher-volume placebo
Biological
Lead sponsor
CSL Behring
Industry
Eligibility
12 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
19
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Bell Gardens, California + 16 more
Source: ClinicalTrials.gov public record
Updated Jan 28, 2021 · Synced Sep 23, 2026, 5:02 PM EDT
Completed Phase 1Phase 2 Interventional Results available

A Study to Evaluate the Clinical Pharmacology and Safety of C1-esterase Inhibitor Administered by the Subcutaneous Route

NCT01576523
View directory record Official record
Conditions
Hereditary Angioedema Types I and II
Interventions
C1-esterase inhibitor - single intravenous dose, C1-esterase inhibitor - subcutaneous low dose, C1-esterase inhibitor - subcutaneous medium dose, C1-esterase inhibitor - subcutaneous high dose
Biological
Lead sponsor
CSL Behring
Industry
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
5
States / cities
Atlanta, Georgia • Chevy Chase, Maryland • Cincinnati, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 31, 2021 · Synced Sep 23, 2026, 5:02 PM EDT
Completed Phase 3 Interventional Results available

A Phase III, Crossover Trial Evaluating the Efficacy and Safety of KVD900 (Sebetralstat) for On-Demand Treatment of Angioedema Attacks in Adolescent and Adult Patients With Hereditary Angioedema (HAE)

NCT05259917
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
Placebo, KVD900 600 mg, KVD900 300 mg
Drug
Lead sponsor
KalVista Pharmaceuticals, Ltd.
Industry
Eligibility
12 Years and older
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
22
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Little Rock, Arkansas + 18 more
Source: ClinicalTrials.gov public record
Updated May 1, 2025 · Synced Sep 23, 2026, 5:02 PM EDT
Completed Phase 3 Interventional Results available

A Pharmacokinetic, Tolerability and Safety Study of Icatibant in Children and Adolescents With Hereditary Angioedema

NCT01386658
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
icatibant
Drug
Lead sponsor
Shire
Industry
Eligibility
2 Years to 17 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
12
States / cities
Los Angeles, California • Tampa, Florida • Shreveport, Louisiana + 9 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced Sep 23, 2026, 5:02 PM EDT
Active, not recruiting Phase 3 Interventional

A Study of Navenibart in Participants With Hereditary Angioedema

NCT06842823
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
navenibart, Placebo
Drug
Lead sponsor
Astria Therapeutics, Inc.
Industry
Eligibility
12 Years and older
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
19
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Little Rock, Arkansas + 15 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Sep 23, 2026, 5:02 PM EDT
Completed Phase 3 Interventional Results available

Efficacy Study of DX-88 (Ecallantide) to Treat Acute Attacks of Hereditary Angioedema (HAE)

NCT00457015
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
ecallantide, Phosphate Buffer Saline (PBS), pH 7.0
Drug
Lead sponsor
Shire
Industry
Eligibility
10 Years and older
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
42
States / cities
Scottsdale, Arizona • Little Rock, Arkansas • Berkeley, California + 38 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced Sep 23, 2026, 5:02 PM EDT
Terminated Phase 2 Interventional Results available

Dose-ranging Study of Oral PHA-022121 for Prophylaxis Against Angioedema Attacks in Patients With Hereditary Angioedema Type I or Type II

NCT05047185
View directory record Official record
Conditions
Hereditary Angioedema, Hereditary Angioedema Type I, Hereditary Angioedema Type II, Hereditary Angioedema Types I and II, Hereditary Angioedema Attack, Hereditary Angioedema With C1 Esterase Inhibitor Deficiency, Hereditary Angioedema - Type 1, Hereditary Angioedema - Type 2, C1 Esterase Inhibitor Deficiency, C1 Inhibitor Deficiency
Interventions
Deucrictibant low dose, Deucrictibant high dose, Placebo
Drug
Lead sponsor
Pharvaris Netherlands B.V.
Industry
Eligibility
18 Years to 75 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
3
States / cities
Birmingham, Alabama • Paradise Valley, Arizona • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 16, 2026 · Synced Sep 23, 2026, 5:02 PM EDT
Available No phase listed Expanded access

Treatment of Angioedema Attacks in Pediatric (Ages 2-11) Post-Trial and Naive Patients With HAE With Sebetralstat

NCT07216378
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
Sebetralstat
Drug
Lead sponsor
KalVista Pharmaceuticals, Ltd.
Industry
Eligibility
2 Years to 11 Years
U.S. locations
6
States / cities
San Diego, California • Evansville, Indiana • Wheaton, Maryland + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Sep 23, 2026, 5:02 PM EDT
Active, not recruiting Phase 3 Interventional

A Study to Assess the Long-Term Safety and Efficacy of Donidalorsen in the Prophylactic Treatment of Hereditary Angioedema (HAE)

NCT05392114
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
Donidalorsen
Drug
Lead sponsor
Ionis Pharmaceuticals, Inc.
Industry
Eligibility
12 Years and older
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
16
States / cities
Paradise Valley, Arizona • La Jolla, California • Santa Monica, California + 13 more
Source: ClinicalTrials.gov public record
Updated Dec 11, 2025 · Synced Sep 23, 2026, 5:02 PM EDT
Completed Phase 2 Interventional Results available

A Study to Investigate CSL312 in Subjects With Hereditary Angioedema (HAE)

NCT03712228
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
Factor XIIa antagonist monoclonal antibody, Placebo
Biological · Drug
Lead sponsor
CSL Behring
Industry
Eligibility
18 Years to 65 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
7
States / cities
Orange, California • Walnut Creek, California • Centennial, Colorado + 4 more
Source: ClinicalTrials.gov public record
Updated Nov 7, 2022 · Synced Sep 23, 2026, 5:02 PM EDT
Recruiting Phase 1Phase 2 Interventional

Oral Deucrictibant for Prophylactic and Acute Treatment in Hereditary Angioedema Patients

NCT07046806
View directory record Official record
Conditions
Hereditary Angioedema (HAE), Angioedema, Bradykinin-mediated Angioedema, C1 Inhibitor Deficiency
Interventions
Deucrictibant XR tablet, Placebo comparator to XR tablet, Deucrictibant 20 mg capsule, Placebo comparator to 20 mg capsule
Drug
Lead sponsor
Institute for Asthma and Allergy
Network
Eligibility
18 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Wheaton, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2025 · Synced Sep 23, 2026, 5:02 PM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy Study of CINRYZE for Prevention of Angioedema Attacks in Children Ages 6-11 With Hereditary Angioedema

NCT02052141
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
CINRYZE 500, CINRYZE 1000
Biological
Lead sponsor
Shire
Industry
Eligibility
6 Years to 11 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
3
States / cities
Colorado Springs, Colorado • Las Vegas, Nevada • Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 2, 2021 · Synced Sep 23, 2026, 5:02 PM EDT
Completed Phase 2 Interventional Results available

CINRYZE for the Treatment of Hereditary Angioedema Attacks in Children Under the Age of 12

NCT01095510
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
CINRYZE
Biological
Lead sponsor
Shire
Industry
Eligibility
2 Years to 11 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
8
States / cities
Colorado Springs, Colorado • Tampa, Florida • Chevy Chase, Maryland + 5 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2021 · Synced Sep 23, 2026, 5:02 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Human C1 Esterase Inhibitor (C1-INH) in Subjects With Acute Abdominal or Facial Hereditary Angioedema (HAE) Attacks

NCT00168103
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
C1 Esterase Inhibitor, Placebo
Biological
Lead sponsor
CSL Behring
Industry
Eligibility
6 Years and older
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
17
States / cities
Granada Hills, California • Weston, Florida • Atlanta, Georgia + 14 more
Source: ClinicalTrials.gov public record
Updated Mar 30, 2015 · Synced Sep 23, 2026, 5:02 PM EDT
Recruiting No phase listed Observational

A Study Investigating the Effectiveness and Safety of Garadacimab for Treating Patients With Hereditary Angioedema (HAE)

NCT07001280
View directory record Official record
Conditions
Hereditary Angioedemas
Interventions
No intervention
Other
Lead sponsor
CSL Behring
Industry
Eligibility
12 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
7
States / cities
Phoenix, Arizona • Miami, Florida • Saint Charles, Illinois + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 23, 2026, 5:02 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of Safety, Tolerability and Immune Responses of Ebola-S and Marburg Vaccines in Healthy Adults

NCT04723602
View directory record Official record
Conditions
Ebola Virus Disease, Marburg Virus Disease
Interventions
cAd3-Marburg, cAd3-EBO-S
Biological
Lead sponsor
Albert B. Sabin Vaccine Institute
Other
Eligibility
18 Years to 50 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Aug 2, 2022 · Synced Sep 23, 2026, 5:02 PM EDT
Completed No phase listed Observational

A Study Observing US Patients With HAE Type I or II Who Take Icatibant to Treat HAE Attacks

NCT07009262
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
Inapplicable
Other
Lead sponsor
KalVista Pharmaceuticals, Ltd.
Industry
Eligibility
12 Years and older
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Fairfax, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Sep 23, 2026, 5:02 PM EDT
Completed No phase listed Observational

Patient Registry Study of Berinert® in Normal Clinical Practice

NCT01108848
View directory record Official record
Conditions
Includes: Hereditary Angioedema
Interventions
Berinert® (C1 Esterase Inhibitor)
Biological
Lead sponsor
CSL Behring
Industry
Eligibility
Not listed
Enrollment
318 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
34
States / cities
Scottsdale, Arizona • Granada Hills, California • Los Angeles, California + 31 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2014 · Synced Sep 23, 2026, 5:02 PM EDT
Completed Phase 3 Interventional Results available

A Study of Icatibant in Patients With Acute Attacks of Hereditary Angioedema (FAST-3)

NCT00912093
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
Icatibant, Placebo
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years and older
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
39
States / cities
Alabaster, Alabama • Birmingham, Alabama • Scottsdale, Arizona + 35 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2021 · Synced Sep 23, 2026, 5:02 PM EDT
Withdrawn Phase 2 Interventional

Study to Assess the Tolerability and Safety of Ecallantide in Children and Adolescents With Hereditary Angioedema

NCT01832896
View directory record Official record
Conditions
Hereditary Angioedema Types I and II
Interventions
Ecallantide subcutaneous dosing
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
2 Years to 16 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Mineola, New York
Source: ClinicalTrials.gov public record
Updated Mar 30, 2023 · Synced Sep 23, 2026, 5:02 PM EDT
Completed Phase 3 Interventional Results available

Open-Label Safety, PK, and Efficacy Trial of Sebetralstat (KVD900) in Pediatric Patients (Ages 2-11) With HAE Type I or II

NCT06467084
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
KVD900 150 mg, KVD900 300 mg, KVD900 600 mg
Drug
Lead sponsor
KalVista Pharmaceuticals, Ltd.
Industry
Eligibility
2 Years to 11 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
10
States / cities
Birmingham, Alabama • Scottsdale, Arizona • San Diego, California + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Sep 23, 2026, 5:02 PM EDT