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Terminated Phase 3 Interventional Results available

Ravulizumab in Thrombotic Microangiopathy Associated With a Trigger

ClinicalTrials.gov ID: NCT04743804

Public ClinicalTrials.gov record NCT04743804. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 5, 2026, 1:13 AM EDT

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

Official title

A Phase 3, Randomized, Double-blind, Placebo-Controlled, Multicenter Study to Evaluate the Efficacy and Safety of Ravulizumab in Adult Participants Who Have Thrombotic Microangiopathy Associated With a Trigger

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This study will investigate the efficacy and safety of ravulizumab compared to placebo in adult participants with thrombotic microangiopathy (TMA) associated with a trigger. Participants will be randomized to receive either ravulizumab plus best supportive care or placebo plus best supportive care. The treatment period is 26 weeks followed by a 26-week off-treatment follow-up period.

Study identification

NCT ID
NCT04743804
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 3
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Enrollment
16 participants

Conditions and interventions

Interventions

Biological · Other

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jun 28, 2021
Primary completion
Dec 21, 2022
Completion
Dec 21, 2022
Last update posted
Sep 30, 2024

2021 – 2022

United States locations

U.S. sites
20
U.S. states
13
U.S. cities
17
Facility City State ZIP Site status
Research Site Tucson Arizona 85724
Research Site Orange California 92868
Research Site Washington D.C. District of Columbia 20007
Research Site Gainesville Florida 32610
Research Site Lexington Kentucky 40536
Research Site Louisville Kentucky 40202
Research Site Boston Massachusetts 02111
Research Site Boston Massachusetts 02115
Research Site Boston Massachusetts 02118
Research Site Rochester Minnesota 55905
Research Site New York New York 10032
Research Site Valhalla New York 10595
Research Site Winston-Salem North Carolina 27103
Research Site Cleveland Ohio 44106
Research Site Cleveland Ohio 44195
Research Site Columbus Ohio 43203
Research Site Philadelphia Pennsylvania 19107
Research Site Pittsburgh Pennsylvania 15212
Research Site Salt Lake City Utah 84115
Research Site Morgantown West Virginia 26505

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 77 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04743804, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Sep 30, 2024 · Synced Sep 5, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04743804 live on ClinicalTrials.gov.

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