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Withdrawn Phase 2 Interventional

Subcutaneous ALXN1830 in Adult Participants With Warm Autoimmune Hemolytic Anemia

ClinicalTrials.gov ID: NCT04956276

Public ClinicalTrials.gov record NCT04956276. 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, 10:09 PM 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 2, Multiple Ascending Dose, Randomized, Double-Blind, Placebo-Controlled Study of ALXN1830 Administered Subcutaneously in Patients With Warm Autoimmune Hemolytic Anemia (WAIHA)

Brief summary

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

This is a Phase 2, multiple ascending, dose-finding, randomized, double-blind, placebo-controlled study to evaluate the efficacy, safety, health-related quality of life, tolerability, pharmacokinetic, pharmacodynamic, and immunogenicity, of up to 3 dose regimens of ALXN1830 administered subcutaneous(ly) (SC) in the treatment of WAIHA. This study will include 2 randomized, double-blind, placebo-controlled cohorts (Cohorts 1 and 2) to evaluate an 8-week treatment regimen, and an optional third open-label cohort (Cohort 3) to evaluate an alternative 12-week dosing regimen. Participants may continue participation in this study at the participant's and investigator's discretion in an open-label extension (OLE) period, consisting of monthly visits to observe participants for relapse, which will require going back on active treatment.

Study identification

NCT ID
NCT04956276
Recruitment status
Withdrawn
Study type
Interventional
Phase
Phase 2
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Enrollment
Not listed

Conditions and interventions

Interventions

Drug

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
Dec 31, 2021
Primary completion
Jul 30, 2022
Completion
Jul 30, 2024
Last update posted
Feb 10, 2022

2022 – 2024

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Clinical Study Site Riverside California 90602-3171

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

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04956276, 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 Feb 10, 2022 · Synced Sep 5, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04956276 live on ClinicalTrials.gov.

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