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Showing 1–16 of 16 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Danicopan Clear all
Completed Phase 2 Interventional Results available

ACTIV-5 / Big Effect Trial (BET-C) for the Treatment of COVID-19

NCT04988035
View directory record Official record
Conditions
COVID-19
Interventions
Danicopan, Placebo, Remdesivir
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
201 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
39
States / cities
Birmingham, Alabama • Bakersfield, California • Fresno, California + 33 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2023 · Synced Sep 1, 2026, 11:19 PM EDT
Completed Phase 2 Interventional Results available

Study of Danicopan in Participants With Paroxysmal Nocturnal Hemoglobinuria With Inadequate Response to Eculizumab

NCT03472885
View directory record Official record
Conditions
Paroxysmal Nocturnal Hemoglobinuria (PNH)
Interventions
Danicopan, Eculizumab
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
Baltimore, Maryland • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 11, 2023 · Synced Sep 1, 2026, 11:19 PM EDT
Active, not recruiting No phase listed Observational

Assess Long-Term Safety of Danicopan Add-on Therapy in Participants With Paroxysmal Nocturnal Hemoglobinuria: Analysis of IPIG-Registry Data

NCT07413250
View directory record Official record
Conditions
Paroxysmal Nocturnal Hemoglobinuria, PNH
Interventions
Danicopan, Soliris/Ultomiris
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Sep 1, 2026, 11:19 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of the Effects of Food and Age on Danicopan

NCT04551599
View directory record Official record
Conditions
Healthy
Interventions
Danicopan
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jan 12, 2023 · Synced Sep 1, 2026, 11:19 PM EDT
Terminated Phase 2 Interventional Results available

A Proof of Concept Study for a 12 Month Treatment in Patients With C3G or IC-MPGN Treated With ACH-0144471

NCT03459443
View directory record Official record
Conditions
C3 Glomerulonephritis, C3 Glomerulopathy, Immune Complex Membranoproliferative Glomerulonephritis, IC-MPGN, Dense Deposit Disease
Interventions
Danicopan
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
12 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
6
States / cities
Birmingham, Alabama • Stanford, California • New Haven, Connecticut + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 20, 2023 · Synced Sep 1, 2026, 11:19 PM EDT
Active, not recruiting Phase 3 Interventional

A Long-term Safety and Efficacy Study of Danicopan as an Add-on Therapy to Complement Component 5 Inhibitor (C5i) in Participants With PNH

NCT05389449
View directory record Official record
Conditions
Paroxysmal Nocturnal Hemoglobinuria
Interventions
Danicopan
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
Not listed
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
7
States / cities
Los Angeles, California • Chicago, Illinois • Baltimore, Maryland + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Sep 1, 2026, 11:19 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of Danicopan in Participants With Hepatic Impairment

NCT03555539
View directory record Official record
Conditions
Hepatic Impairment
Interventions
Danicopan
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
2
States / cities
Miami, Florida • Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Aug 19, 2021 · Synced Sep 1, 2026, 11:19 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Drug Interaction Study of Danicopan

NCT04709094
View directory record Official record
Conditions
Healthy
Interventions
Danicopan, Warfarin, Bupropion, Ethinyl Estradiol/Norethindrone
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jan 13, 2021 · Synced Sep 1, 2026, 11:19 PM EDT
Completed Phase 2 Interventional Results available

A Proof-of-Concept Study of Danicopan for 6 Months of Treatment in Participants With C3 Glomerulopathy (C3G)

NCT03369236
View directory record Official record
Conditions
C3 Glomerulopathy, C3 Glomerulonephritis, Dense Deposit Disease
Interventions
Danicopan, Placebo
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
17 Years to 65 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
6
States / cities
Aurora, Colorado • Lawrenceville, Georgia • Iowa City, Iowa + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2022 · Synced Sep 1, 2026, 11:19 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of the Cardiac Effects of Danicopan in Healthy Adults

NCT05016206
View directory record Official record
Conditions
Healthy
Interventions
Danicopan, Moxifloxacin-matching Placebo, Danicopan-matching placebo, Moxifloxacin
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 22, 2021 · Synced Sep 1, 2026, 11:19 PM EDT
Active, not recruiting No phase listed Observational

Long-term Safety of Danicopan: IPIG Registry-based Cohort Study

NCT07413679
View directory record Official record
Conditions
Paroxysmal Nocturnal Hemoglobinuria, PNH
Interventions
Danicopan
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Sep 1, 2026, 11:19 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of the Drug Interactions Between Danicopan and Cyclosporine, Tacrolimus, Antacids, and Omeprazole in Healthy Adults

NCT05109390
View directory record Official record
Conditions
Healthy
Interventions
Danicopan, Cyclosporine, Tacrolimus, Calcium Carbonate, Aluminum/Magnesium Hydroxide/Simethicone, Omeprazole
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Sep 1, 2026, 11:19 PM EDT
Terminated Phase 2 Interventional Results available

A Study of Danicopan in Participants With Geographic Atrophy Secondary to Age-Related Macular Degeneration

NCT05019521
View directory record Official record
Conditions
Geographic Atrophy
Interventions
Danicopan, Placebo
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
60 Years and older
Enrollment
365 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
49
States / cities
Phoenix, Arizona • Beverly Hills, California • Encino, California + 45 more
Source: ClinicalTrials.gov public record
Updated Sep 4, 2025 · Synced Sep 1, 2026, 11:19 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of Danicopan in Participants With Normal Kidney Function and Participants With Kidney Dysfunction

NCT04935294
View directory record Official record
Conditions
Healthy, Renal Dysfunction
Interventions
Danicopan
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
4
States / cities
Miami, Florida • Orlando, Florida • Minneapolis, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 22, 2021 · Synced Sep 1, 2026, 11:19 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of the Metabolism of Danicopan in Healthy Adults

NCT04609696
View directory record Official record
Conditions
Healthy
Interventions
Danicopan: Powder-In-Capsule 1, Danicopan: Powder-In-Capsule 2, Danicopan: Tablet
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 14, 2022 · Synced Sep 1, 2026, 11:19 PM EDT
Completed Phase 3 Interventional Results available

Danicopan as Add-on Therapy to a C5 Inhibitor in Paroxysmal Nocturnal Hemoglobinuria (PNH) Participants Who Have Clinically Evident Extravascular Hemolysis (EVH)(ALPHA)

NCT04469465
View directory record Official record
Conditions
Paroxysmal Nocturnal Hemoglobinuria
Interventions
Danicopan, Placebo, C5 Inhibitor
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
86 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
7
States / cities
Los Angeles, California • Weston, Florida • Chicago, Illinois + 4 more
Source: ClinicalTrials.gov public record
Updated May 3, 2025 · Synced Sep 1, 2026, 11:19 PM EDT