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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: C1 Esterase Inhibitor Deficiency Clear all
Completed Phase 3 Interventional Results available

Long-term Safety and Efficacy of CSL312 (Garadacimab) in the Prophylactic Treatment of Hereditary Angioedema Attacks

NCT04739059
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
CSL312
Biological
Lead sponsor
CSL Behring
Industry
Eligibility
12 Years and older
Enrollment
171 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
11
States / cities
Birmingham, Alabama • Litchfield Park, Arizona • Scottsdale, Arizona + 8 more
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Jul 23, 2026, 9:50 AM EDT
Recruiting Phase 3 Interventional

Study of Oral Deucrictibant XR Tablet for Prophylaxis and Deucrictibant IR Capsule for On-Demand Treatment of Angioedema Attacks in Adults With Acquired Angioedema Due to C1 Inhibitor Deficiency

NCT07266805
View directory record Official record
Conditions
Acquired Angioedema Due to C1-Inhibitor Deficiency (AAE-C1-INH)
Interventions
Deucrictibant, Placebo
Drug
Lead sponsor
Pharvaris Netherlands B.V.
Industry
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
4
States / cities
San Diego, California • Walnut Creek, California • St Louis, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2026 · Synced Jul 23, 2026, 9:50 AM 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 23, 2026, 9:50 AM 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 Jul 23, 2026, 9:50 AM 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
15
States / cities
Litchfield Park, Arizona • Little Rock, Arkansas • San Diego, California + 12 more
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Jul 23, 2026, 9:50 AM 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 Jul 23, 2026, 9:50 AM EDT
Completed Phase 2 Interventional Results available

A Phase II, Cross-over Clinical Trial Evaluating the Efficacy and Safety of KVD900 (Sebetralstat) in the On-demand Treatment of Angioedema Attacks in Adult Subjects With Hereditary Angioedema Type I or II

NCT04208412
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
KVD900, Placebo
Drug · Other
Lead sponsor
KalVista Pharmaceuticals, Ltd.
Industry
Eligibility
18 Years and older
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
6
States / cities
Scottsdale, Arizona • Centennial, Colorado • Chevy Chase, Maryland + 3 more
Source: ClinicalTrials.gov public record
Updated May 1, 2025 · Synced Jul 23, 2026, 9:50 AM 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 Jul 23, 2026, 9:50 AM 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 16, 2025 · Synced Jul 23, 2026, 9:50 AM 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 2, 2021 · Synced Jul 23, 2026, 9:50 AM 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 Jul 19, 2026 · Synced Jul 23, 2026, 9:50 AM EDT
Completed Phase 3 Interventional

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 Jan 22, 2026 · Synced Jul 23, 2026, 9:50 AM EDT
Completed Phase 2 Interventional Results available

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

NCT04618211
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, Placebo
Drug
Lead sponsor
Pharvaris Netherlands B.V.
Industry
Eligibility
18 Years to 75 Years
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
8
States / cities
Birmingham, Alabama • Paradise Valley, Arizona • San Diego, California + 5 more
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Jul 23, 2026, 9:50 AM 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 23, 2026, 9:50 AM 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 23, 2026, 9:50 AM EDT
Completed Phase 3 Interventional

PK Subtrial in Adolescent Patients With HAE Type I or II Participating in the KVD900-302 Trial

NCT05511922
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
KVD900 600 mg, Drug: KVD900 300 mg
Drug
Lead sponsor
KalVista Pharmaceuticals, Ltd.
Industry
Eligibility
12 Years to 17 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
20
States / cities
Scottsdale, Arizona • Little Rock, Arkansas • San Diego, California + 16 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2026 · Synced Jul 23, 2026, 9:50 AM 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 Jul 23, 2026, 9:50 AM EDT
Completed No phase listed Observational

Patient Registry to Evaluate the Real-world Safety of Ruconest®

NCT03697187
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
rhC1INH
Drug
Lead sponsor
Pharming Technologies B.V.
Industry
Eligibility
13 Years and older
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Fairfax, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 4, 2024 · Synced Jul 23, 2026, 9:50 AM 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 2, 2021 · Synced Jul 23, 2026, 9:50 AM EDT
Completed No phase listed Observational Results available

Observational Safety Study for KALBITOR (Ecallantide) in the Treatment of Acute Attacks of Hereditary Angioedema

NCT01059526
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
ecallantide
Drug
Lead sponsor
Shire
Industry
Eligibility
16 Years and older
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
40
States / cities
Little Rock, Arkansas • Bell Gardens, California • Granada Hills, California + 35 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced Jul 23, 2026, 9:50 AM 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 7, 2026 · Synced Jul 23, 2026, 9:50 AM 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 Jul 23, 2026, 9:50 AM 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 23, 2026, 9:50 AM EDT
Terminated Phase 2 Interventional Results available

A Trial to Evaluate the Efficacy and Safety of Different Doses of KVD824 for Prophylactic Treatment of HAE Type I or II

NCT05055258
View directory record Official record
Conditions
Angioedema, Hereditary, Types I and II
Interventions
KVD824, Placebo to KVD824
Drug
Lead sponsor
KalVista Pharmaceuticals, Ltd.
Industry
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
13
States / cities
Birmingham, Alabama • Scottsdale, Arizona • La Jolla, California + 10 more
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Jul 23, 2026, 9:50 AM EDT