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ClinicalTrials.gov public records Last synced Sep 30, 2026, 10:21 AM EDT

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Showing 25–48 of 51 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: C1 Esterase Inhibitor Clear all
Completed Phase 2 Interventional Results available

Subcutaneous CINRYZE With Recombinant Human Hyaluronidase for Prevention of Angioedema Attacks

NCT01756157
View directory record Official record
Conditions
Hereditary Angioedema (HAE)
Interventions
CINRYZE with rHuPH20
Biological
Lead sponsor
Shire
Industry
Eligibility
12 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
17
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Bentonville, Arkansas + 14 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2021 · Synced Sep 30, 2026, 10:21 AM 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 19, 2021 · Synced Sep 30, 2026, 10:21 AM 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 3, 2021 · Synced Sep 30, 2026, 10:21 AM EDT
Completed Phase 2 Interventional Results available

Safety of Ruconest in 2-13 Year Old Hereditary Angioedema (HAE) Patients

NCT01359969
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 29, 2024 · Synced Sep 30, 2026, 10:21 AM EDT
Completed Phase 3 Interventional Results available

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

NCT01005888
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
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
16
States / cities
Scottsdale, Arizona • San Diego, California • Walnut Creek, California + 13 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2021 · Synced Sep 30, 2026, 10:21 AM EDT
Completed Phase 2 Interventional Results available

A Study to Assess the Clinical Efficacy of Donidalorsen (Also Known as IONIS-PKK-LRx and ISIS 721744) in Participants With Hereditary Angioedema

NCT04030598
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 3, 2023 · Synced Sep 30, 2026, 10:21 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Berinert (C1INH) vs Placebo for DGF/IRI

NCT04696146
View directory record Official record
Conditions
End Stage Renal Disease, Chronic Kidney Diseases
Interventions
Berinert, Placebo
Drug
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 70 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 4, 2024 · Synced Sep 30, 2026, 10:21 AM EDT
Completed Phase 1 Interventional Results available

C1-esterase Inhibitor (Cinryze) for Acute Treatment of Neuromyelitis Optica Exacerbation

NCT01759602
View directory record Official record
Conditions
Neuromyelitis Optica
Interventions
C1-esterase inhibitor (Cinryze)
Drug
Lead sponsor
Michael Levy
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 18, 2014 · Synced Sep 30, 2026, 10:21 AM EDT
Completed Phase 2 Interventional Results available

C1-Inhibitor (INH) for Refractory Antibody Mediated Renal Allograft Rejection

NCT02936479
View directory record Official record
Conditions
Antibody Mediated Rejection of Kidney Transplant
Interventions
C1-INH (Berinert)
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 70 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 11, 2019 · Synced Sep 30, 2026, 10:21 AM 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 31, 2015 · Synced Sep 30, 2026, 10:21 AM EDT
Completed Phase 3 Interventional Results available

A Study of Long-Term Safety and Efficacy of Lanadelumab for Prevention of Acute Attacks of Non-histaminergic Angioedema With Normal C1-Inhibitor

NCT04444895
View directory record Official record
Conditions
Angioedema
Interventions
Lanadelumab
Drug
Lead sponsor
Shire
Industry
Eligibility
12 Years and older
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
15
States / cities
Birmingham, Alabama • Scottsdale, Arizona • San Diego, California + 12 more
Source: ClinicalTrials.gov public record
Updated Jun 17, 2024 · Synced Sep 30, 2026, 10:21 AM 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 9, 2021 · Synced Sep 30, 2026, 10:21 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 Feb 1, 2021 · Synced Sep 30, 2026, 10:21 AM EDT
Completed Phase 2 Interventional

Study to Evaluate the Benefit of RUCONEST in Improving Neurological Symptoms in Post COVID-19 Infection

NCT04705831
View directory record Official record
Conditions
Post-Viral Fatigue Syndrome, Post-Viral Disorder (Disorder), Covid19
Interventions
Ruconest
Drug
Lead sponsor
IMMUNOe Research Centers
Industry
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Centennial, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 11, 2025 · Synced Sep 30, 2026, 10:21 AM EDT
Completed Phase 2 Interventional Results available

A Phase 2 HAE Prophylaxis Study With Recombinant Human C1 Inhibitor

NCT02247739
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
Recombinant human C1 inhibitor, Placebo
Biological · Other
Lead sponsor
Pharming Technologies B.V.
Industry
Eligibility
13 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
4
States / cities
Tampa, Florida • St Louis, Missouri • Lake Oswego, Oregon
Source: ClinicalTrials.gov public record
Updated Dec 8, 2017 · Synced Sep 30, 2026, 10:21 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 3, 2021 · Synced Sep 30, 2026, 10:21 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Angioedema Biomarker Research Study

NCT06210698
View directory record Official record
Conditions
Angioedema, Angioedemas, Hereditary, Urticaria, Mastocytosis, ACE Inhibitor-Induced Angioedema, C1 Inhibitor Deficiency, Systemic Mastocytoses, Indolent Systemic Mastocytosis
Interventions
Venipuncture
Diagnostic Test
Lead sponsor
Foundation For Rare Disease Research
Other
Eligibility
12 Years to 75 Years
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Wheaton, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Sep 30, 2026, 10:21 AM EDT
Completed Phase 3 Interventional Results available

Efficacy, Safety and Immunogenicity Study of Recombinant Human C1 Inhibitor for the Treatment of Acute HAE Attacks

NCT01188564
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
rhC1INH, Placebo (Saline)
Drug
Lead sponsor
Pharming Technologies B.V.
Industry
Eligibility
13 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
15
States / cities
Scottsdale, Arizona • Granada Hills, California • Los Angeles, California + 12 more
Source: ClinicalTrials.gov public record
Updated Aug 7, 2015 · Synced Sep 30, 2026, 10:21 AM EDT
Completed Phase 2 Interventional Results available

Prevention of Severe SARS-CoV-2 Infection in Hospitalized Patients With COVID-19

NCT04530136
View directory record Official record
Conditions
Confirmed Coronavirus Disease
Interventions
Ruconest
Drug
Lead sponsor
Pharming Technologies B.V.
Industry
Eligibility
18 Years to 85 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
4
States / cities
Marlton, New Jersey • Mount Holly, New Jersey • Ridgewood, New Jersey + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 16, 2024 · Synced Sep 30, 2026, 10:21 AM EDT
Recruiting Phase 3 Interventional

Study of Oral Deucrictibant XR Tablet for Prophylaxis and Deucrictibant Soft 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
48 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 Sep 21, 2026 · Synced Sep 30, 2026, 10:21 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 17, 2025 · Synced Sep 30, 2026, 10:21 AM 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 8, 2021 · Synced Sep 30, 2026, 10:21 AM 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 2, 2025 · Synced Sep 30, 2026, 10:21 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 Sep 29, 2026 · Synced Sep 30, 2026, 10:21 AM EDT