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Showing 1–24 of 85 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: C1 Esterase Inhibitor, Deficiency of Clear all
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 Jul 21, 2026, 7:29 PM EDT
Completed No phase listed Observational

A Study of Lanadelumab in Persons With Hereditary Angioedema (HAE) Type I or II in North America

NCT03845400
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
Not listed
Lead sponsor
Shire
Industry
Eligibility
Not listed
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
23
States / cities
Birmingham, Alabama • Scottsdale, Arizona • San Diego, California + 20 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2023 · Synced Jul 21, 2026, 7:29 PM EDT
Completed Phase 1 Interventional

Pharmacokinetics of C1 Esterase Inhibitor in Hereditary Angioedema Subjects

NCT00432510
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
C1 esterase inhibitor [human] (C1INH-nf)
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
6
States / cities
San Diego, California • Walnut Creek, California • Atlanta, Georgia + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2021 · Synced Jul 21, 2026, 7:29 PM EDT
Recruiting Phase 3 Interventional

Donidalorsen Treatment in Children With Hereditary Angioedema

NCT07298447
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
Donidalorsen
Drug
Lead sponsor
Ionis Pharmaceuticals, Inc.
Industry
Eligibility
2 Years to 11 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
5
States / cities
Santa Monica, California • Miami, Florida • St Louis, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Jul 21, 2026, 7:29 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 Jul 21, 2026, 7:29 PM EDT
Enrolling by invitation Phase 2Phase 3 Interventional

Extension Study of Oral PHA-022121 for Acute Treatment of Angioedema Attacks in Patients With Hereditary Angioedema

NCT05396105
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, Hereditary Angioedema - Type 3, C1 Esterase Inhibitor [C1-INH] Deficiency, C1 Esterase Inhibitor Deficiency, C1 Esterase Inhibitor, Deficiency of, C1 Inhibitor Deficiency, Hereditary Angioedema Type III, Hereditary Angioedema (HAE), Hereditary Angioedema Type I and II, HAE With Normal C1 Esterase Inhibitor
Interventions
deucrictibant
Drug
Lead sponsor
Pharvaris Netherlands B.V.
Industry
Eligibility
12 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
12
States / cities
Birmingham, Alabama • Little Rock, Arkansas • San Diego, California + 9 more
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Jul 21, 2026, 7:29 PM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate the Clinical Efficacy and Safety of Subcutaneously Administered C1 Esterase Inhibitor for the Prevention of Angioedema Attacks in Adolescents and Adults With Hereditary Angioedema

NCT02584959
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
C1 esterase inhibitor [human] liquid, Placebo
Drug
Lead sponsor
Shire
Industry
Eligibility
12 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
16
States / cities
Scottsdale, Arizona • Santa Monica, California • Walnut Creek, California + 13 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced Jul 21, 2026, 7:29 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional

A Gene Therapy Study of BMN 331 in Subjects With Hereditary Angioedema

NCT05121376
View directory record Official record
Conditions
Hereditary Angioedema, HAE
Interventions
Dose 1 of BMN 331, Dose 2 of BMN 331, Dose 3 of BMN 331, Dose 4 of BMN 331, Dose 5 of BMN 331, Dose 6 of BMN 331, Dose 7 of BMN 331
Genetic
Lead sponsor
BioMarin Pharmaceutical
Industry
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
13
States / cities
Birmingham, Alabama • Scottsdale, Arizona • San Diego, California + 10 more
Source: ClinicalTrials.gov public record
Updated May 15, 2024 · Synced Jul 21, 2026, 7:29 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 Jul 21, 2026, 7:29 PM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate the Safety, Pharmacokinetics, and Pharmacodynamics of Subcutaneous CINRYZE Administration

NCT01095497
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
CINRYZE
Biological
Lead sponsor
Shire
Industry
Eligibility
12 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
7
States / cities
Scottsdale, Arizona • Walnut Creek, California • Atlanta, Georgia + 4 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2021 · Synced Jul 21, 2026, 7:29 PM EDT
Completed Phase 3 Interventional Results available

C1 Esterase Inhibitor in Hereditary Angioedema (HAE)(Extension Study)

NCT00292981
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
C1 Esterase Inhibitor
Drug
Lead sponsor
CSL Behring
Industry
Eligibility
6 Years and older
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
13
States / cities
Weston, Florida • Atlanta, Georgia • Idaho Falls, Idaho + 10 more
Source: ClinicalTrials.gov public record
Updated May 6, 2015 · Synced Jul 21, 2026, 7:29 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 Jul 21, 2026, 7:29 PM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate the Safety and Pharmacology of Subcutaneous Administration of CINRYZE With Recombinant Human Hyaluronidase

NCT01426763
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
CINRYZE with rHuPH20
Biological
Lead sponsor
Shire
Industry
Eligibility
12 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
4
States / cities
Scottsdale, Arizona • Walnut Creek, California • Atlanta, Georgia + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2021 · Synced Jul 21, 2026, 7:29 PM EDT
Completed Phase 1Phase 2 Interventional Results available

A Study of Navenibart (STAR-0215) in Participants With Hereditary Angioedema

NCT05695248
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
Navenibart
Drug
Lead sponsor
Astria Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
13
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Bentonville, Arkansas + 10 more
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Jul 21, 2026, 7:29 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 Jul 21, 2026, 7:29 PM EDT
Completed Phase 4 Interventional

A Study to Evaluate the Benefit of RUCONEST® in Subjects Who Experience ADRs Related to IVIG Infusions

NCT03576469
View directory record Official record
Conditions
CVI - Common Variable Immunodeficiency
Interventions
C1-esterase inhibitor [recombinant] (C1-INH-R)
Biological
Lead sponsor
IMMUNOe Research Centers
Industry
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Centennial, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 14, 2021 · Synced Jul 21, 2026, 7:29 PM EDT
Active, not recruiting Phase 2 Interventional

A Long-term Study of STAR-0215 in Participants With Hereditary Angioedema

NCT06007677
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
STAR-0215
Drug
Lead sponsor
Astria Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2031
U.S. locations
12
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Little Rock, Arkansas + 9 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2025 · Synced Jul 21, 2026, 7:29 PM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety Study of BCX7353 as an Oral Treatment for the Prevention of Attacks in HAE

NCT03485911
View directory record Official record
Conditions
Hereditary Angioedema, HAE
Interventions
BCX7353 capsules, Placebo oral capsule
Drug
Lead sponsor
BioCryst Pharmaceuticals
Industry
Eligibility
12 Years and older
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
27
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Little Rock, Arkansas + 24 more
Source: ClinicalTrials.gov public record
Updated Jun 25, 2023 · Synced Jul 21, 2026, 7:29 PM EDT
Approved For Marketing No phase listed Expanded access

Treatment of Angioedema Attacks in Adolescent and Adult Patients 12 Years and Older With HAE Type I or II With Sebetralstat

NCT06628713
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
Sebetralstat
Drug
Lead sponsor
KalVista Pharmaceuticals, Ltd.
Industry
Eligibility
12 Years and older
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced Jul 21, 2026, 7:29 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 Jul 21, 2026, 7:29 PM EDT
Completed Phase 4 Interventional Results available

Efficacy, Safety and Tolerability of Icatibant for the Treatment of HAE

NCT01457430
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
Icatibant
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
5
States / cities
La Jolla, California • Los Angeles, California • Wheaton, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 17, 2016 · Synced Jul 21, 2026, 7:29 PM EDT
Completed Phase 3 Interventional Results available

Open-Label C1 Esterase Inhibitor (C1INH-nf) for the Prevention of Acute Hereditary Angioedema (HAE) Attacks

NCT00462709
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
C1 esterase inhibitor [human] (C1INH-nf)
Biological
Lead sponsor
Shire
Industry
Eligibility
1 Year and older
Enrollment
146 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
48
States / cities
Hoover, Alabama • Scottsdale, Arizona • Bentonville, Arkansas + 45 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced Jul 21, 2026, 7:29 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Single Increasing Dose Study to Assess Safety and Tolerability of DX-2930 in Healthy Subjects

NCT01923207
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
DX-2930, Placebo
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years to 55 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated May 16, 2021 · Synced Jul 21, 2026, 7:29 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 Jul 21, 2026, 7:29 PM EDT