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ClinicalTrials.gov public records Last synced Sep 30, 2026, 6:28 PM EDT

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Showing 1–24 of 85 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: C1 Esterase Inhibitor, Deficiency of Clear all
Completed Phase 3 Interventional Results available

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

NCT00438815
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
113 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
30
States / cities
Scottsdale, Arizona • Bentonville, Arkansas • Los Angeles, California + 27 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2021 · Synced Sep 30, 2026, 6:28 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Withdrawn Phase 2 Interventional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 31, 2023 · Synced Sep 30, 2026, 6:28 PM EDT
Completed Phase 3 Interventional

Study of Oral Deucrictibant Soft Capsule for On-Demand Treatment of Angioedema Attacks in Adolescents and Adults With Hereditary Angioedema

NCT06343779
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 [C1-INH] Deficiency, C1 Esterase Inhibitor Deficiency, C1 Esterase Inhibitor, Deficiency of, C1 Inhibitor Deficiency, Hereditary Angioedema - Type 3, Hereditary Angioedema Type III
Interventions
Deucrictibant, Placebo
Drug
Lead sponsor
Pharvaris Netherlands B.V.
Industry
Eligibility
12 Years to 75 Years
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
13
States / cities
Birmingham, Alabama • Paradise Valley, Arizona • Little Rock, Arkansas + 10 more
Source: ClinicalTrials.gov public record
Updated Nov 21, 2025 · Synced Sep 30, 2026, 6:28 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 21, 2026 · Synced Sep 30, 2026, 6:28 PM EDT
Completed Phase 3 Interventional Results available

CSL312_3003 Safety and Pharmacokinetic Study in Subjects 2 to 11 Years of Age With Hereditary Angioedema

NCT05819775
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
CSL312
Biological
Lead sponsor
CSL Behring
Industry
Eligibility
2 Years to 11 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
7
States / cities
Litchfield Park, Arizona • Scottsdale, Arizona • Orange, California + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 30, 2026, 6:28 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 23, 2025 · Synced Sep 30, 2026, 6:28 PM EDT
Completed Phase 2 Interventional Results available

An Extension Study of Donidalorsen (IONIS-PKK-LRx) in Participants With Hereditary Angioedema

NCT04307381
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
Donidalorsen
Drug
Lead sponsor
Ionis Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
6
States / cities
Scottsdale, Arizona • Santa Monica, California • Plymouth, Minnesota + 3 more
Source: ClinicalTrials.gov public record
Updated May 8, 2026 · Synced Sep 30, 2026, 6:28 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 2, 2025 · Synced Sep 30, 2026, 6:28 PM EDT
Completed Phase 3 Interventional Results available

Subcutaneous Treatment With Icatibant for Acute Attacks of Hereditary Angioedema

NCT00097695
View directory record Official record
Conditions
Angioedema
Interventions
Icatibant, Placebo
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years and older
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jun 9, 2021 · Synced Sep 30, 2026, 6:28 PM EDT
Completed Phase 3 Interventional Results available

OASIS-HAE: A Study to Evaluate the Safety and Efficacy of Donidalorsen (ISIS 721744 or IONIS-PKK-LRx) in Participants With Hereditary Angioedema (HAE)

NCT05139810
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
Donidalorsen, Placebo
Drug
Lead sponsor
Ionis Pharmaceuticals, Inc.
Industry
Eligibility
12 Years and older
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
15
States / cities
Scottsdale, Arizona • San Diego, California • Santa Monica, California + 12 more
Source: ClinicalTrials.gov public record
Updated Mar 6, 2025 · Synced Sep 30, 2026, 6:28 PM EDT
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 17, 2026 · Synced Sep 30, 2026, 6:28 PM EDT
Completed Phase 2Phase 3 Interventional Results available

12-Week Safety and Efficacy Study of BCX4161 as an Oral Prophylaxis Against HAE Attacks

NCT02303626
View directory record Official record
Conditions
Hereditary Angioedema, HAE
Interventions
BCX4161, Placebo
Drug
Lead sponsor
BioCryst Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
25
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Granada Hills, California + 21 more
Source: ClinicalTrials.gov public record
Updated Nov 17, 2025 · Synced Sep 30, 2026, 6:28 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 7, 2015 · Synced Sep 30, 2026, 6:28 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Open-label, Single-arm Study to Assess the Pharmacokinetics, Safety, and Tolerability of a Single Subcutaneous Dose of Icatibant in Healthy Japanese Volunteers

NCT02045264
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
Icatibant (30 mg)
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Glendale, California
Source: ClinicalTrials.gov public record
Updated Jun 3, 2021 · Synced Sep 30, 2026, 6:28 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 8, 2021 · Synced Sep 30, 2026, 6:28 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 11, 2021 · Synced Sep 30, 2026, 6:28 PM EDT
Completed Phase 3 Interventional Results available

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

NCT00289211
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
C1 esterase inhibitor [human] (C1INH-nf), Placebo (saline)
Biological · Drug
Lead sponsor
Shire
Industry
Eligibility
6 Years and older
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
37
States / cities
Hoover, Alabama • Scottsdale, Arizona • Los Angeles, California + 34 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2021 · Synced Sep 30, 2026, 6:28 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 5, 2026 · Synced Sep 30, 2026, 6:28 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 26, 2023 · Synced Sep 30, 2026, 6:28 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 17, 2026 · Synced Sep 30, 2026, 6:28 PM EDT
Recruiting Phase 3 Interventional

STOP-HAE: A Phase 3 Study of ADX-324 in HAE

NCT06960213
View directory record Official record
Conditions
Hereditary Angioedema, HAE, Hereditary Angioedema - Type 1, Hereditary Angioedema - Type 2
Interventions
ADX-324, Placebo
Drug
Lead sponsor
ADARx Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
19
States / cities
Litchfield Park, Arizona • Scottsdale, Arizona • Little Rock, Arkansas + 16 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 30, 2026, 6:28 PM EDT
Enrolling by invitation Phase 3 Interventional

Long-Term, Open-label Study of Oral Deucrictibant Extended-Release Tablet for Prophylaxis Against Angioedema Attacks in Adolescents and Adults With HAE

NCT06679881
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
Deucrictibant
Drug
Lead sponsor
Pharvaris Netherlands B.V.
Industry
Eligibility
12 Years and older
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
13
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Little Rock, Arkansas + 10 more
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Sep 30, 2026, 6:28 PM EDT
Completed Phase 3 Interventional Results available

CSL312 (Garadacimab) in the Prevention of Hereditary Angioedema Attacks

NCT04656418
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
CSL312, Placebo
Biological · Drug
Lead sponsor
CSL Behring
Industry
Eligibility
12 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
8
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Santa Monica, California + 5 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2023 · Synced Sep 30, 2026, 6:28 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Phase 1 Study to Assess the Safety, Tolerability, and Pharmacokinetics of Recombinant Human C1 Esterase Inhibitor in Healthy Adult Subjects

NCT02663687
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
Recombinant human C1 esterase inhibitor, Placebo, SHP623
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years to 50 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jun 3, 2021 · Synced Sep 30, 2026, 6:28 PM EDT