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ClinicalTrials.gov public records Last synced Sep 16, 2026, 7:43 AM EDT

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Showing 1–24 of 51 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: C1-esterase inhibitor Clear all
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 15, 2024 · Synced Sep 16, 2026, 7:43 AM EDT
Terminated Phase 3 Interventional Results available

Efficacy and Safety of Human Plasma-derived C1-esterase Inhibitor as add-on to Standard of Care for the Treatment of Refractory Antibody Mediated Rejection (AMR) in Adult Renal Transplant Recipients

NCT03221842
View directory record Official record
Conditions
Antibody-mediated Rejection
Interventions
C1-esterase inhibitor, Placebo
Drug
Lead sponsor
CSL Behring
Industry
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
13
States / cities
Birmingham, Alabama • Phoenix, Arizona • San Francisco, California + 9 more
Source: ClinicalTrials.gov public record
Updated Jul 28, 2022 · Synced Sep 16, 2026, 7:43 AM EDT
Terminated Phase 3 Interventional Results available

A Multicenter Study to Evaluate the Efficacy and Safety of Cinryze® for the Treatment of Acute Antibody-mediated Rejection in Participants With Kidney Transplant

NCT02547220
View directory record Official record
Conditions
Acute Antibody-Mediated Rejection (AMR)
Interventions
Cinryze®, Placebo
Biological · Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years to 70 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
29
States / cities
Los Angeles, California • San Francisco, California • Aurora, Colorado + 22 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2020 · Synced Sep 16, 2026, 7:43 AM EDT
Completed Phase 4 Interventional

Treatment of Hereditary Angioedema Prodrome with Recombinant C1-esterase Inhibitor (Ruconest)

NCT06690047
View directory record Official record
Conditions
Hereditary Angioedema
Interventions
Ruconest
Biological
Lead sponsor
Bernstein Clinical Research Center
Other
Eligibility
14 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
2
States / cities
Birmingham, Alabama • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 14, 2024 · Synced Sep 16, 2026, 7:43 AM EDT
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 7, 2021 · Synced Sep 16, 2026, 7:43 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 Sep 16, 2026, 7:43 AM EDT
No Longer Available No phase listed Expanded access

Expanded Access for the Prevention of Acute Attacks of 1) Hereditary Angioedema (HAE) in Children and 2) Non-histaminergic Angioedema With Normal C1-Inhibitor (C1-INH) in Teenagers and Adults

NCT04583007
View directory record Official record
Conditions
Hereditary Angioedema (HAE), Angioedema
Interventions
Lanadelumab 150 mg, Lanadelumab 300 mg
Drug
Lead sponsor
Shire
Industry
Eligibility
2 Years and older
U.S. locations
14
States / cities
Scottsdale, Arizona • Santa Monica, California • Walnut Creek, California + 10 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2023 · Synced Sep 16, 2026, 7:43 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 Sep 16, 2026, 7:43 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 28, 2024 · Synced Sep 16, 2026, 7:43 AM 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 Sep 16, 2026, 7:43 AM EDT
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 2, 2021 · Synced Sep 16, 2026, 7:43 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 17, 2014 · Synced Sep 16, 2026, 7:43 AM EDT
Recruiting Phase 2 Interventional

Improving Deceased-Donor Kidney Transplant Outcomes Via a Single Intragraft Injection of C1 Esterase Inhibitor (IMPROVE TRIAL)

NCT06919003
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 Sep 16, 2026, 7:43 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 Sep 16, 2026, 7:43 AM 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 Sep 16, 2026, 7:43 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 10, 2021 · Synced Sep 16, 2026, 7:43 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 6, 2015 · Synced Sep 16, 2026, 7:43 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 Sep 16, 2026, 7:43 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 7, 2017 · Synced Sep 16, 2026, 7:43 AM 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 Sep 16, 2026, 7:43 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 Aug 5, 2026 · Synced Sep 16, 2026, 7:43 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 23, 2026 · Synced Sep 16, 2026, 7:43 AM EDT
Not listed Phase 1 Interventional

RUCONEST® as a Therapeutic Strategy to Reduce the Incidence of Delayed Graft Function

NCT03791476
View directory record Official record
Conditions
Kidney Failure
Interventions
rhC1INH, Saline Solution
Drug · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 13, 2020 · Synced Sep 16, 2026, 7:43 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 10, 2025 · Synced Sep 16, 2026, 7:43 AM EDT