A Study of Mezagitamab in Adults With Late Antibody-Mediated Rejection (AMR) After a Kidney Transplant
A Double-Blind, Placebo-Controlled, Multicenter, Randomized, Phase 2 Trial to Evaluate the Safety and Efficacy of Mezagitamab (TAK-079) in Kidney Transplant Recipients With Late Antibody-Mediated Rejection (AMR)
Antibody-mediated rejection (AMR) is a major cause of worsening kidney function after a kidney transplant (kidney allograft dysfunction) and can lead to kidney failure. AMR happens when the kidney recipient's immune system makes antibodies that attack the donor kidney. Antibodies are proteins made by the immune system to recognize foreign cells. Over time, this attack can damage kidney tissue and cause the transplant to fail. Because AMR can be serious, there is a need for treatments that are safe, work well, and are supported by good evidence.
The main aim of this study is to find out how safe mezagitamab is and how well adults with AMR tolerate it compared with placebo. A placebo looks like medicine but has no active ingredients. The study will also look at whether mezagitamab helps to control inflammation in the transplanted kidney and helps keep kidney function stable, compared with placebo.
Participants will be placed by chance in 1 of the 3 treatment groups in equal numbers. Two groups will receive mezagitamab in two different doses. One group will receive placebo. This means that out of every 3 participants, 2 will receive mezagitamab and 1 will receive placebo.
During the study, participants will visit their study clinic several times.
연구 개요
상태
상태
정황
정황
개입 / 치료
개입 / 치료
연구 유형
연구 유형
등록 (추정된)
등록
단계
단계
- 2 단계
연락처 및 위치
연구 연락처
연구 연락처
- 이름: Takeda Contact
- 전화번호: +1-877-825-3327
- 이메일: medinfoUS@takeda.com
연구 장소
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München, 독일, 81377
- Ludwig-Maximilians-Universitaet Muenchen (LMU) Klinikum der Universitaet Muenchen
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수석 연구원:
- Michael Fischereder
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Münster, 독일
- Universitaetsklinikum Muenster
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수석 연구원:
- Stefan Reuter
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North Rhine-Westphalia
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Bochum, North Rhine-Westphalia, 독일, 44892
- Kliniken Universitatsklinikum Bochum GmbH
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수석 연구원:
- Andreas Schnitzbauer
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Essen, North Rhine-Westphalia, 독일, 45122
- Universitaetsklinikum Essen
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수석 연구원:
- Benjamin Wilde
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California
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Los Angeles, California, 미국, 90024
- UCLA University of California Los Angeles
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수석 연구원:
- Suphamai Bunnapradist
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연락하다:
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San Francisco, California, 미국, 94118
- Kaiser Permanente-San Francisco Medical Center - Kidney Transplant Clinic
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연락하다:
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수석 연구원:
- Anshul Bhalla
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Florida
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Miami, Florida, 미국, 33136
- University of Miami Hospital and Clinics
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수석 연구원:
- Adela Mattiazzi
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연락하다:
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Tampa, Florida, 미국, 33606
- Tampa General Hospital
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수석 연구원:
- Luis Beltran
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연락하다:
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Maryland
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Baltimore, Maryland, 미국, 21201
- University of Maryland
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연락하다:
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수석 연구원:
- Jonathan Bromberg
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Missouri
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St Louis, Missouri, 미국, 63110
- Washington University School of Medicine
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수석 연구원:
- Tarek Alhamad
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연락하다:
- 이메일: talhamad@wustl.edu
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New Jersey
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Livingston, New Jersey, 미국, 07039
- Cooperman Barnabas Medical Center
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수석 연구원:
- Anup Patel
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연락하다:
- 이메일: anup.patel@rwjbh.org
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New York
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New York, New York, 미국, 10016
- NYU Langone Health - Transplant Associates
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연락하다:
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수석 연구원:
- Aprajita Mattoo
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New York, New York, 미국, 10021
- Weill Cornell Medicine - Nephrology and Kidney Transplantation Medicine
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수석 연구원:
- Darshana Dadhania
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연락하다:
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Ohio
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Cleveland, Ohio, 미국, 44195
- Cleveland Clinic - Cleveland
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연락하다:
- 이메일: augustj4@ccf.org
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수석 연구원:
- Joshua Augustine
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Texas
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Dallas, Texas, 미국, 75390
- University of Texas Southwestern Medical Center
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수석 연구원:
- David Wojciechowski
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연락하다:
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Utah
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Murray, Utah, 미국, 84107
- Intermountain Healthcare
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수석 연구원:
- Sanjiv Anand
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연락하다:
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Virginia
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Richmond, Virginia, 미국, 23298
- Virginia Commonwealth University (VCU) - Medical Center - Hume-Lee Transplant Center (HLTC)
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수석 연구원:
- Gaurab Gupta
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Wisconsin
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Milwaukee, Wisconsin, 미국, 53226
- Froedtert and The Medical College of Wisconsin
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수석 연구원:
- Matthew Cooper
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연락하다:
- 이메일: macooper@mcw.edu
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Niigata, 일본, 951-8520
- Niigata University Medical and Dental Hospital
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연락하다:
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수석 연구원:
- Masayuki Tasaki
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Osaka, 일본, 545-8585
- Osaka Metropolitan university Hospital
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연락하다:
- 이메일: uchida@omu.ac.jp
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수석 연구원:
- Junji Uchida
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Aichi-ken
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Nagoya, Aichi-ken, 일본, 466-8650
- Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
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수석 연구원:
- Kenta Futamura
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연락하다:
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Kumamoto
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Kumamoto, Kumamoto, 일본, 861-8520
- Japanese Red Cross Kumamoto Hospital
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수석 연구원:
- Shigeyoshi Yamanaga
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연락하다:
- 전화번호: 096-384-2111
- 이메일: yamanaga@kumamoto-med.jrc.or.jp
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Tokyo
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Shinjuku-ku, Tokyo, 일본, 162-0055
- Yochomachi Clinic
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연락하다:
- 전화번호: 81353122059
- 이메일: omotokazuya@yahoo.co.jp
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수석 연구원:
- Kazuya Omoto
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Beijing Municipality
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Beijing, Beijing Municipality, 중국, 100050
- Beijing Friendship hospital, Capital Medical University
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연락하다:
- 이메일: yczhu82@gmail.com
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수석 연구원:
- Yichen Zhu
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Guangdong
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Guangdong, Guangdong, 중국, 510080
- The First Affiliated Hospital of Sun Yat-sen University
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연락하다:
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수석 연구원:
- Changxi Wang
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Guangxi
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Nanning, Guangxi, 중국, 530007
- The Second Affiliated Hospital of Guangxi Medical University
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연락하다:
- 이메일: sxywn@sohu.com
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수석 연구원:
- Xuyong Sun
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Hubei
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Wuhan, Hubei, 중국, 430075
- Tongji Hospital Affiliated to Tongji Medicine University
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수석 연구원:
- Gang Chen
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연락하다:
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Shaanxi
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Xi'an, Shaanxi, 중국
- The First Affiliated Hospital of Xi'an Jiaotong University
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연락하다:
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수석 연구원:
- Wujun Xue
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Shandong
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Jinan, Shandong, 중국, 250013
- Shandong Provincial Qianfoshan Hospital
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수석 연구원:
- Jianning Wang
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연락하다:
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Sichuan
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Chengdu, Sichuan, 중국, 610000
- West China Hospital Sichuan University
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연락하다:
- 이메일: yyshi_130@126.com
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수석 연구원:
- Yunying Shi
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Zhejiang
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Hangzhou, Zhejiang, 중국, 310003
- The First Affiliated Hospital of Zhejiang University school of medicine
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연락하다:
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수석 연구원:
- Rending Wang
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Bordeaux, 프랑스, 33076
- CHU Bordeaux, CHU Pellegrin
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수석 연구원:
- Lionel Couzi
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연락하다:
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Créteil, 프랑스, 94000
- Hopital Henri Mondor
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연락하다:
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수석 연구원:
- Marie Matignon
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Lyon, 프랑스, 69003
- Hopital Edouard Herriot (HEH)
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수석 연구원:
- Olivier Thaunat
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연락하다:
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Toulouse, 프랑스
- CHU de Toulouse - Hopital Rangueil
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수석 연구원:
- Nassim Kamar
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연락하다:
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참여기준
자격 기준
자격 기준
공부할 수 있는 나이
- 성인
- 고령자
건강한 자원 봉사자를 받아들입니다
설명
Key inclusion criteria:
- The participant aged 18 to 80 years.
- The participant must have a biopsy-confirmed diagnosis of active or chronic active late AMR (defined as greater than [>] 6 month after kidney transplant) without concurrent definitive TCMR (Grade 1a and above) as defined by the 2022 Banff classification.
- Biopsy within 30 days prior to screening, or performed during screening period within protocol-defined window.
- If the participant has received treatment for rejection, then the repeat biopsy and donor specific antibody (DSA) testing must have been performed at least 6 weeks after stopping the treatment.
- The participant with either human leukocyte antigen (HLA) class I and/or II DSA.
- eGFR > 30 milliliters per minute per 1.73 square meters (mL/min/1.73m^2).
Key exclusion criteria:
- The participant has blood type A, B, AB, or O (ABO) incompatible transplant.
- The participant has a history of multiple organ transplants, including en bloc and dual kidney transplants.
- Participant likely to require renal replacement therapy within the subsequent 30 days.
- Participants who have received an anti-cluster of differentiation 38 (CD38) therapy in the last 1 year or have past history of failing to achieve AMR resolution despite treatment with an anti-CD38 therapy.
The participant has received any previous treatment with other immunosuppressant or immunomodulatory therapy:
a) Within 6 months of signing the informed consent form (ICF) as listed below:
- Complement system inhibitors (such as, eculizumab).
- Proteasome inhibitors (such as, bortezomib).
- Interleukin-6 (IL-6)/IL-6R antibody (such as, tocilizumab).
- Anti-cluster of differentiation 20 (CD20) antibody (such as, rituximab). b) Within 6 weeks of signing the ICF as listed below:
- Intravenous immunoglobulin (IVIG) or subcutaneous immunoglobulin (SCIG) or plasmapheresis
- The participant has active infection with hepatitis B virus, hepatitis C virus (HCV), or human immunodeficiency virus (HIV).
- Participant with serious infection within 2 weeks or with opportunistic infection within 2 months prior to signing ICF. Participant with active or untreated tuberculosis, or those with high suspicion of tuberculosis are also excluded.
- History of malignancy (including myelodysplastic syndrome) within 5 years of signing the ICF, except for adequately treated non-melanoma skin cancer, superficial bladder cancer, and curatively treated cervical carcinoma-in-situ.
Key Note: Other protocol specified inclusion and exclusion criteria apply.
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 치료
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 네 배로
팔의 수
무기와 개입
참가자 그룹 / 팔참가자 그룹 / 팔 |
개입 / 치료개입 / 치료 |
|---|---|
|
실험적: Arm A: Mezagitamab + Placebo
Participants will receive mezagitamab up to Week 24, followed by placebo up to Week 48, followed by an observation period up to Week 70.
|
Mezagitamab subcutaneous (SC) injection.
다른 이름들:
Mezagitamab-matching placebo SC injection.
|
|
실험적: Arm B: Mezagitamab
Participants will receive mezagitamab up to Week 48, followed by an observation period up to Week 70.
|
Mezagitamab subcutaneous (SC) injection.
다른 이름들:
|
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활성 비교기: Arm C: Placebo
Participants will receive placebo up to Week 48, followed by an observation period up to Week 70.
|
Mezagitamab-matching placebo SC injection.
|
연구는 무엇을 측정합니까?
주요 결과 측정
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Arms A, B, and C: Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
기간: Up to Week 70
|
An adverse event (AE) is any untoward medical occurrence in a clinical trial participant, temporally associated with the use of the trial intervention, whether or not the occurrence is considered related to the trial intervention.
An AE can be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of the trial intervention.
TEAEs are defined as AEs with start dates at the time of or following the first exposure to investigational medicinal product (IMP).
|
Up to Week 70
|
|
Arms A, B, and C: Number of Participants With Related TEAEs
기간: Up to Week 70
|
A related AE is an AE that is considered related to the IMP.
Related TEAEs are defined as related AEs with start dates at the time of or following the first exposure to IMP.
|
Up to Week 70
|
|
Arms A, B, and C: Number of Participants With Serious Adverse Events (SAEs)
기간: Up to Week 70
|
An SAE is any untoward medical occurrence that results in death, is life threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity or is a congenital anomaly/birth defect.
|
Up to Week 70
|
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Arms A, B, and C: Number of Participants With AEs of Special Interest
기간: Up to Week 70
|
AEs of special interest are AEs that are considered specific to the IMP.
|
Up to Week 70
|
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Arms A, B, and C: Number of Participants With AE Leading to Treatment Discontinuation
기간: Up to Week 70
|
Up to Week 70
|
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Arms A, B, and C: Number of Participants With Clinically Significant Abnormal Laboratory Test Results and Vital Signs
기간: Up to Week 70
|
Up to Week 70
|
2차 결과 측정
2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Arms A, B, and C: Percentage of Participants With Achievement of Biopsy-Proven Histologic Resolution of AMR Activity at Weeks 24 and 48
기간: Weeks 24 and 48
|
Achievement of biopsy-proven histological resolution of AMR activity will be assessed by the 2022 Banff classification criteria.
The Banff 2022 Classification provides a standardized framework for evaluating kidney transplant biopsies using lesion scoring.
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Weeks 24 and 48
|
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Arms A, B, and C: Microvascular Inflammation (MVI) Score in Biopsy Samples at Weeks 24 and 48
기간: Weeks 24 and 48
|
MVI is an important marker of allograft loss and is defined as the sum of glomerulitis and peritubular capillaritis scores (g+ptc) on kidney histology.
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Weeks 24 and 48
|
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Arms A, B, and C: Percentage of Participants Who Achieve a MVI Score of 0 at Weeks 24 and 48
기간: Weeks 24 and 48
|
Weeks 24 and 48
|
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Arms A, B, and C: Change From Baseline in MVI score at Weeks 24 and 48
기간: Baseline, Weeks 24 and 48
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Baseline, Weeks 24 and 48
|
|
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Arms A, B, and C: Change From Baseline in Estimated Glomerular Filtration Rate (eGFR) at Weeks 24, 48 and 70
기간: Baseline, Weeks 24, 48 and 70
|
eGFR is a measure of kidney function calculated from serum creatinine using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation.
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Baseline, Weeks 24, 48 and 70
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Arms A, B, and C: Change From Baseline in Donor-Derived Cell-Free DNA (dd-cfDNA) at Weeks 24, 48 and 70
기간: Baseline, Weeks 24, 48 and 70
|
dd-cfDNA are DNA fragments released from injured donor cells.
It serves as a noninvasive, quantitative method that reflects allograft injury and is associated with AMR activity in kidney transplant recipients.
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Baseline, Weeks 24, 48 and 70
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Arms A, B, and C: Change From Baseline in Urine Protein Creatinine Ratio (UPCR) at Weeks 24, 48 and 70
기간: Baseline, Weeks 24, 48 and 70
|
UPCR is a measure of protein excretion calculated from a urine sample, as the ratio of urine protein to creatinine, and used to assess kidney function.
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Baseline, Weeks 24, 48 and 70
|
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Arm B: Percentage of Participants With Achievement of Biopsy-Proven Histologic Resolution of AMR Activity at Week 70
기간: Week 70
|
Week 70
|
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Arm B: MVI Score in Biopsy Samples at Week 70
기간: Week 70
|
Week 70
|
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Arm B: Percentage of Participants Who Achieve a MVI Score of 0 at Week 70
기간: Week 70
|
Week 70
|
|
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Arm B: Change From Baseline in MVI score at Week 70
기간: Week 70
|
Week 70
|
|
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Arms A, B, and C: Percentage of Participants With T-Cell Mediated Rejection (TCMR) by Biopsy at Weeks 24 and 48
기간: Weeks 24 and 48
|
Weeks 24 and 48
|
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Arm B: Percentage of Participants With TCMR by Biopsy at Week 70
기간: Week 70
|
Week 70
|
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Arms A and B: Serum Concentration of Mezagitamab
기간: Pre-dose and at multiple time points post-dose up to Week 70
|
Pre-dose and at multiple time points post-dose up to Week 70
|
|
|
Arms A, B and C: Number of Participants With Anti-Drug Antibody
기간: Pre-dose and at multiple time points post-dose up to Week 70
|
Pre-dose and at multiple time points post-dose up to Week 70
|
|
|
Arms A, B and C: Number of Participants With Neutralizing Antibody
기간: Pre-dose and at multiple time points post-dose up to Week 70
|
Pre-dose and at multiple time points post-dose up to Week 70
|
공동 작업자 및 조사자
수사관
수사관
- 연구 책임자: Study Director, Takeda
간행물 및 유용한 링크
유용한 링크
- Click here to ask Takeda's chatbot for comprehensive and easy-to-understand information about clinical trials - even across products and indications - in your local language.
- Click here for more information about this trial in easy-to-understand language, including a Plain Language Summary of the results if the trial has been completed.
연구 기록 날짜
연구 주요 날짜
연구 시작 (추정된)
연구 시작
기본 완료 (추정된)
기본 완료
연구 완료 (추정된)
연구 완료
연구 등록 날짜
최초 제출
최초 제출
QC 기준을 충족하는 최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
처음 게시됨
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
마지막 업데이트 게시됨
QC 기준을 충족하는 마지막 업데이트 제출
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
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추가 정보
이 연구와 관련된 용어
기타 연구 ID 번호
기타 연구 ID 번호
- TAK-079-2002
- 2026-526239-20-00 (씨티스)
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
IPD 계획 설명
IPD 공유 액세스 기준
IPD 공유 지원 정보 유형
- 연구_프로토콜
- 수액
- ICF
- CSR
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