Phase 2 Study of ALXN2030 in Patients With Antibody-Mediated Rejection After Kidney Transplantation

NCT ID: NCT06744647

Last Updated: 2025-11-06

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

45 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-03-07

Study Completion Date

2028-11-07

Brief Summary

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The primary objective of this study is to evaluate the efficacy of ALXN2030 compared with placebo on biopsy proven histologic resolution in participants with active or chronic active antibody-mediated rejection (AMR) at Week 52.

Detailed Description

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This prospective trial will assess the efficacy, safety, pharmacokinetics, pharmacodynamics, and immunogenicity of ALXN2030 in kidney transplant recipients with active or chronic active AMR. The study is designed as a randomized, controlled, double-blind phase 2 trial. Participants will be randomized in a 1:1:1 ratio to receive either ALXN2030 Dose A, ALXN2030 Dose B, or placebo for a double-blind treatment period of 52 weeks. All arms will receive standard of care immunosuppressive treatment. During the treatment period, study participants will be subjected to repeated allograft biopsies at 28 and 52 weeks. At the end of the double-blind treatment period, participants may continue into the Open-Label Extension (OLE) Treatment Period (52 weeks). Participants randomized to placebo will be re-randomized 1:1 to ALXN2030 Dose A or ALXN2030 Dose B. Safety Follow-Up will start after the end of Treatment (Week 104) until week 48 after the last dose.

Conditions

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Antibody-Mediated Rejection Kidney Transplantation Biopsy-proven Histologic Scores AMR

Keywords

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ALXN2030 Antibody-Mediated Rejection Kidney Transplantation Biopsy-proven histologic scores AMR

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Placebo

Placebo will be administered during the Double-Blind Treatment Period of 52 weeks.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo will be administered SC.

ALXN2030 Dose A

During the Double-Blind Treatment Period, participants will receive ALXN2030 dose A over 52 weeks. At Week 52, participants may continue into the Open Label Extension (OLE).

Group Type EXPERIMENTAL

ALXN2030

Intervention Type DRUG

ALXN2030 will be administered subcutaneously (SC).

ALXN2030 Dose B

During the Double-Blind Treatment Period, participants will receive ALXN2030 dose B over 52 weeks. At Week 52, participants may continue into the OLE Period.

Group Type EXPERIMENTAL

ALXN2030

Intervention Type DRUG

ALXN2030 will be administered subcutaneously (SC).

Interventions

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ALXN2030

ALXN2030 will be administered subcutaneously (SC).

Intervention Type DRUG

Placebo

Placebo will be administered SC.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Kidney transplant received ≥ 6 months
* Active or chronic active AMR according to Banff 2022 classification, based on Screening kidney biopsy
* Either positive C4d on Screening kidney biopsy based on the Central Pathology Laboratory report and/or positive HLA Class I and/or II antigen-specific DSA as determined by the local laboratory's definition of positivity using single-antigen bead based assays
* MVI score ≥ 2 (g ≥ 1 and ptc ≥ 1)
* eGFR ≥ 30 mL/min/1.73 m2
* Must be vaccinated against meningococcal infection from serogroups A, C, W, Y (and B where available) at least 14 days prior to but no more than 3 years prior to Day 1
* Must be vaccinated for S pneumoniae prior to randomization
* Must be vaccinated for H influenzae type B (where available) prior to randomization
* Body weight ≥ 50 kg at Screening

Exclusion Criteria

* Biopsy-based diagnosis of any of the following at Screening:
* TCMR, according to the Banff grade ≥ 1
* Polyoma virus nephropathy
* Severe thrombotic microangiopathy
* Glomerulonephritis
* ABO-incompatible transplant
* uACR \> 2200 mg/g
* Multiorgan transplant recipient (except for previous multiple kidney transplants) or cell transplant (islet, bone marrow, stem cell) recipient
* Planned or recent treatments, \< 3 months prior to the Screening Visit, for Acute Rejection, AMR (including plasmapheresis, plasma exchange, IVIg, B-cell depleting therapy, IL inhibitors, proteasome inhibitors, high-dose corticosteroids \[except for tapering\]), TCMR (including T-cell depleting therapy), excluding the SoC immunosuppressant treatment which will be allowed and should be stable during the entire treatment.
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Alexion Pharmaceuticals, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Research Site

Birmingham, Alabama, United States

Site Status RECRUITING

Research Site

Scottsdale, Arizona, United States

Site Status NOT_YET_RECRUITING

Research Site

Los Angeles, California, United States

Site Status RECRUITING

Research Site

Orange, California, United States

Site Status NOT_YET_RECRUITING

Research Site

Tampa, Florida, United States

Site Status NOT_YET_RECRUITING

Research Site

Atlanta, Georgia, United States

Site Status NOT_YET_RECRUITING

Research Site

Kansas City, Kansas, United States

Site Status NOT_YET_RECRUITING

Research Site

Ann Arbor, Michigan, United States

Site Status NOT_YET_RECRUITING

Research Site

Detroit, Michigan, United States

Site Status NOT_YET_RECRUITING

Research Site

Livingston, New Jersey, United States

Site Status NOT_YET_RECRUITING

Research Site

New York, New York, United States

Site Status WITHDRAWN

Research Site

New York, New York, United States

Site Status NOT_YET_RECRUITING

Research Site

New York, New York, United States

Site Status NOT_YET_RECRUITING

Research Site

Stony Brook, New York, United States

Site Status NOT_YET_RECRUITING

Research Site

Durham, North Carolina, United States

Site Status NOT_YET_RECRUITING

Research Site

Cincinnati, Ohio, United States

Site Status NOT_YET_RECRUITING

Research Site

Philadelphia, Pennsylvania, United States

Site Status NOT_YET_RECRUITING

Research Site

Charleston, South Carolina, United States

Site Status WITHDRAWN

Research Site

Dallas, Texas, United States

Site Status NOT_YET_RECRUITING

Research Site

Houston, Texas, United States

Site Status NOT_YET_RECRUITING

Research Site

Richmond, Virginia, United States

Site Status RECRUITING

Research Site

Seattle, Washington, United States

Site Status NOT_YET_RECRUITING

Research Site

Milwaukee, Wisconsin, United States

Site Status NOT_YET_RECRUITING

Research Site

Botucatu, , Brazil

Site Status NOT_YET_RECRUITING

Research Site

Campinas, , Brazil

Site Status NOT_YET_RECRUITING

Research Site

Porto Alegre, , Brazil

Site Status NOT_YET_RECRUITING

Research Site

São Paulo, , Brazil

Site Status NOT_YET_RECRUITING

Research Site

São Paulo, , Brazil

Site Status RECRUITING

Research Site

Calgary, Alberta, Canada

Site Status NOT_YET_RECRUITING

Research Site

Edmonton, Alberta, Canada

Site Status RECRUITING

Research Site

Vancouver, British Columbia, Canada

Site Status NOT_YET_RECRUITING

Research Site

London, Ontario, Canada

Site Status RECRUITING

Research Site

Toronto, Ontario, Canada

Site Status NOT_YET_RECRUITING

Research Site

Montreal, Quebec, Canada

Site Status WITHDRAWN

Research Site

Changsha, , China

Site Status NOT_YET_RECRUITING

Research Site

Guangzhou, , China

Site Status NOT_YET_RECRUITING

Research Site

Nanning, , China

Site Status NOT_YET_RECRUITING

Research Site

Shanghai, , China

Site Status NOT_YET_RECRUITING

Research Site

Wuhan, , China

Site Status NOT_YET_RECRUITING

Research Site

Xi'an, , China

Site Status NOT_YET_RECRUITING

Research Site

Seoul, , South Korea

Site Status RECRUITING

Research Site

Seoul, , South Korea

Site Status RECRUITING

Research Site

Seoul, , South Korea

Site Status RECRUITING

Research Site

Seoul, , South Korea

Site Status RECRUITING

Research Site

Seoul, , South Korea

Site Status RECRUITING

Research Site

Barcelona, , Spain

Site Status NOT_YET_RECRUITING

Research Site

Barcelona, , Spain

Site Status NOT_YET_RECRUITING

Research Site

Zaragoza, , Spain

Site Status NOT_YET_RECRUITING

Research Site

Kaohsiung City, , Taiwan

Site Status RECRUITING

Research Site

Kaohsiung City, , Taiwan

Site Status NOT_YET_RECRUITING

Research Site

Taichung, , Taiwan

Site Status RECRUITING

Research Site

Taoyuan District, , Taiwan

Site Status WITHDRAWN

Research Site

Birmingham, , United Kingdom

Site Status NOT_YET_RECRUITING

Research Site

London, , United Kingdom

Site Status NOT_YET_RECRUITING

Countries

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United States Brazil Canada China South Korea Spain Taiwan United Kingdom

Central Contacts

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Alexion Pharmaceuticals, Inc. (Sponsor)

Role: CONTACT

Phone: 1-855-752-2356

Email: [email protected]

Other Identifiers

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D8560C00002

Identifier Type: -

Identifier Source: org_study_id