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ARGX-117 in Deceased Donor Kidney Transplant Recipients at Risk for Delayed Graft Function

Phase 2
Active, not recruiting
Conditions
Delayed Graft Function
Interventions
Other: Placebo
Registration Number
NCT05907096
Lead Sponsor
argenx
Brief Summary

The main purpose of this study is to evaluate the safety, efficacy and tolerability of ARGX-117 in Deceased Donor Kidney Transplant Recipients at Risk for Delayed Graft Function.

The study consists of 2 parts: part A comprises the main study period, and part B comprises the long-term observational follow-up period. During part A, after the screening period, eligible participants will be randomized to receive either ARGX-117 or placebo, entering the treatment and evaluation period (duration of up to 52 weeks). After the treatment period, participants will enter a follow-up period of up to 12 weeks.

The total study duration varies from approximately 64 weeks up to 5 years post-transplant depending on whether a participant enrols in part B of the study.

Detailed Description

Not available

Recruitment & Eligibility

Status
ACTIVE_NOT_RECRUITING
Sex
All
Target Recruitment
103
Inclusion Criteria
  • Is at least the local legal age of consent for clinical studies and at least aged 18 years and less than 70 years
  • Agree to use contraceptive measures consistent with local regulations
  • Are diagnosed with ESRD and have been stable on chronic dialysis for at least 3 months
  • Are recipients of de novo or second-time, single kidney transplant from a deceased donor, either DCD (donation after cardiac/circulatory death) or DBD ( (donation after brain death)
  • Are ABO compatible with donor allograft, except for type A2 donor to type B recipient kidneys
  • Have a negative cross match
  • Have received pretransplant vaccinations for: Neisseria meningitidis, Streptococcus pneumoniae, and Haemophilus influenzae, or are willing to receive the vaccinations approximately 3 to 4 months posttransplant
Exclusion Criteria
  • Any history of prothrombotic disorder or history of thrombosis or hypercoagulable state, excluding vascular access clotting
  • Any known history of complement deficiency
  • Evidence of peritonitis in participants on peritoneal dialysis
  • Received any solid organ, bone marrow, or hematopoietic stem cell transplant, with the exception of prior first kidney transplant
  • High risk within the study period for recurrence of underlying renal disease in the opinion of the investigator
  • Clinically significant comorbidity, recent major surgery (within 3 months of screening), history of any treatment nonadherence, or intention to have surgery during the study other than kidney transplantation; or any other medical condition that, in the investigator's opinion, would confound the results of the study or put the participant at undue risk
  • Clinically significant active bacterial, viral, or fungal infection
  • History of malignancy unless considered cured by adequate treatment, with no evidence of recurrence for 5 years or more before first study drug administration. Adequately treated participants with the following cancers can be included at any time: Basal cell or squamous cell skin cancer; Carcinoma in situ of the cervix; Carcinoma in situ of the breast; Incidental histological finding of prostate cancer
  • History of current alcohol, drug, or medication abuse as assessed by the investigator
  • Pregnant or lactating state or intention to become pregnant during the study

The full list of criteria can be found in the protocol.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
ARGX-117ARGX-117Patients receiving ARGX-117 intravenous infusions
PlaceboPlaceboPatients receiving placebo intravenous infusions
Primary Outcome Measures
NameTimeMethod
eGFR at 24 weeks posttransplantUp to 24 weeks

Estimated glomerular filtration rate

Secondary Outcome Measures
NameTimeMethod
Proportion of participants with Delayed Graft Function (DGF)Up to 52 weeks
Proportion of participants with fDGFUp to 52 weeks

Functional Delayed Graft Function

Duration of dialysis treatment for DGF within the first 30 days posttransplantup to 30 days
Proportion of participants who have ongoing dialysis requirement at study day 31Up to 31 days
CRR at 72 hours posttransplant and on study day 8up to 8 days

Creatinine reduction ratio

iBox score at 52 weeks posttransplantup to 52 weeks
Dialysis-free participant survival through 52 weeks posttransplantup to 52 weeks
(Death-censored) allograft survival through 52 weeks posttransplantUp to 52 weeks
eGFR at 52 weeks posttransplantup to 52 weeks

Estimated glomerular filtration rate

Incidence of PNFup to 12 weeks

Primary Nonfunction

Serum concentrations for ARGX 117up to 64 weeks
Changes from baseline in free C2, total C2, and CH50up to 64 weeks
Incidence of anti-drug antibodies (ADA) against ARGX-117up to 64 weeks

Trial Locations

Locations (45)

Cedars-Sinai Medical Center

🇺🇸

Los Angeles, California, United States

Tampa General Hospital

🇺🇸

Tampa, Florida, United States

University of Illinois (UI) Health - Outpatient Care Center

🇺🇸

Chicago, Illinois, United States

Cooperman Barnabas Medical Center

🇺🇸

Livingston, New Jersey, United States

Erie County Medical Center

🇺🇸

Buffalo, New York, United States

Columbia University

🇺🇸

New York, New York, United States

The Ohio State University

🇺🇸

Columbus, Ohio, United States

University of Texas Southwestern Medical Center

🇺🇸

Dallas, Texas, United States

Royal Adelaide Hospital

🇦🇺

Adelaide, Australia

Monash Health - Monash Medical Centre

🇦🇺

Clayton, Australia

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Cedars-Sinai Medical Center
🇺🇸Los Angeles, California, United States
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