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ClinicalTrials.gov public records Last synced May 21, 2026, 11:51 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 84 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: C1 Esterase Inhibitor, Deficiency of Clear all
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
Donidalorsen, Placebo
Drug
Lead sponsor
Ionis Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
7
States / cities
Scottsdale, Arizona • San Diego, California • Santa Monica, California + 4 more
Source: ClinicalTrials.gov public record
Updated Apr 2, 2023 · Synced May 21, 2026, 11:51 PM EDT
Completed No phase listed Observational
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 May 21, 2026, 11:51 PM EDT
Recruiting Phase 3 Interventional
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 Oct 2, 2025 · Synced May 21, 2026, 11:51 PM EDT
Completed Phase 2 Interventional Results available
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 May 21, 2026, 11:51 PM EDT
Recruiting Phase 3 Interventional
View directory record Official record
Conditions
Hereditary Angioedema (HAE), Hereditary Angioedema - Type 1, Hereditary Angioedema - Type 2, HAE
Interventions
ADX-324 Dose Level 1, ADX-324 Dose Level 2
Drug
Lead sponsor
ADARx Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
15
States / cities
Litchfield Park, Arizona • Little Rock, Arkansas • San Diego, California + 12 more
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced May 21, 2026, 11:51 PM EDT
Completed Phase 3 Interventional Results available
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 28, 2023 · Synced May 21, 2026, 11:51 PM EDT
Completed Phase 4 Interventional
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 May 21, 2026, 11:51 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
ecallantide, Phosphate Buffer Saline (PBS),
Drug
Lead sponsor
Shire
Industry
Eligibility
10 Years and older
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Wheaton, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 10, 2021 · Synced May 21, 2026, 11:51 PM EDT
Active, not recruiting Phase 3 Interventional
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
NTLA-2002, Normal Saline IV Administration
Biological
Lead sponsor
Intellia Therapeutics
Industry
Eligibility
16 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
14
States / cities
Scottsdale, Arizona • San Diego, California • Santa Monica, California + 11 more
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced May 21, 2026, 11:51 PM EDT
Completed Phase 3 Interventional Results available
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 May 21, 2026, 11:51 PM EDT
Completed Phase 2Phase 3 Interventional Results available
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 May 21, 2026, 11:51 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
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 May 21, 2026, 11:51 PM EDT
Completed Phase 2 Interventional Results available
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 May 21, 2026, 11:51 PM EDT
Recruiting Phase 3 Interventional
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
12
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Little Rock, Arkansas + 9 more
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced May 21, 2026, 11:51 PM EDT
Completed No phase listed Observational
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 May 21, 2026, 11:51 PM EDT
Recruiting No phase listed Observational
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
5
States / cities
Phoenix, Arizona • Saint Charles, Illinois • Baltimore, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced May 21, 2026, 11:51 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
rhC1INH
Drug
Lead sponsor
Pharming Technologies B.V.
Industry
Eligibility
2 Years to 13 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 28, 2024 · Synced May 21, 2026, 11:51 PM EDT
Completed No phase listed Observational Results available
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 May 21, 2026, 11:51 PM EDT
Completed Phase 2 Interventional
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 Jul 29, 2025 · Synced May 21, 2026, 11:51 PM EDT
Active, not recruiting Phase 3 Interventional
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
Deucrictibant, Placebo
Drug
Lead sponsor
Pharvaris Netherlands B.V.
Industry
Eligibility
12 Years and older
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
6
States / cities
Little Rock, Arkansas • San Diego, California • Santa Monica, California + 3 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced May 21, 2026, 11:51 PM EDT
Completed Phase 1 Interventional
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 May 21, 2026, 11:51 PM EDT
Recruiting Phase 2 Interventional
View directory record Official record
Conditions
Kidney Transplant
Interventions
Berinert, Placebo for Berinert
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 75 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2032
U.S. locations
4
States / cities
Los Angeles, California • Chicago, Illinois • Kansas City, Kansas + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced May 21, 2026, 11:51 PM EDT
Active, not recruiting Phase 2 Interventional
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 May 21, 2026, 11:51 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
ecallantide
Drug
Lead sponsor
Shire
Industry
Eligibility
10 Years and older
Enrollment
147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
39
States / cities
Scottsdale, Arizona • Little Rock, Arkansas • Berkeley, California + 35 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced May 21, 2026, 11:51 PM EDT