Survival and Dialysis Independency in Highly Sensitized Patients After Desensitization With Imlifidase and Tx of Kidneys

NCT ID: NCT05714514

Last Updated: 2025-11-18

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

ACTIVE_NOT_RECRUITING

Total Enrollment

64 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-04-21

Study Completion Date

2029-12-31

Brief Summary

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The goal of this follow-up study is to learn about long-term patient survival and graft function in highly sensitized patients who have received desensitization treatment with imlifidase or standard of care (SoC) in order to enable kidney transplantation in clinical study ConfIdeS (20-HMedIdeS-17, NCT04935177).

Detailed Description

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This is an observational follow-up study subsequent to the ConfIdeS study (20-HMedIdeS-17, NCT04935177) in highly sensitized patients who were randomized to imlifidase or SoC desensitization prior to kidney transplantation with a deceased donor graft, or, if SoC perioperative treatment has been deemed not appropriate, wait for a more immunologically compatible organ offer.

After the patients have given written informed consent to participate in the follow-up they will be included in the study and followed until 5 years after randomization in the ConfIdeS study.

Most of the assessments in this study are already part of the follow up within SoC for these patients. During the local clinic routine follow-up visits at year 2, 3 and 5 after randomization in the ConfIdeS study, information about patient survival, wait-list status, graft survival, kidney function, and health related quality of life will be evaluated.

Conditions

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Kidney Transplantation in Highly Sensitized Patients

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Imlifidase administered in the ConfIdeS study

Imlifidase administered in the ConfIdeS study

Intervention Type DRUG

Imlifidase is an immunoglobulin G (IgG)-degrading enzyme of Streptococcus pyogenes that is highly selective towards IgG. The cleavage of IgG generates one F(ab')2- and one homodimeric Fc- fragment and efficiently neutralizes Fc-mediated activities of IgG.

Best available treatment administered in the ConfIdeS study

Best available treatment administered in the ConfIdeS study

Intervention Type OTHER

Institution-specific desensitization treatment prior to kidney transplantation in the ConfIdeS study OR remain on wait list for a more compatible organ offer if desensitization with institutional protocol is not appropriate

Interventions

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Imlifidase administered in the ConfIdeS study

Imlifidase is an immunoglobulin G (IgG)-degrading enzyme of Streptococcus pyogenes that is highly selective towards IgG. The cleavage of IgG generates one F(ab')2- and one homodimeric Fc- fragment and efficiently neutralizes Fc-mediated activities of IgG.

Intervention Type DRUG

Best available treatment administered in the ConfIdeS study

Institution-specific desensitization treatment prior to kidney transplantation in the ConfIdeS study OR remain on wait list for a more compatible organ offer if desensitization with institutional protocol is not appropriate

Intervention Type OTHER

Other Intervention Names

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IdeS, HMED-IdeS

Eligibility Criteria

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Inclusion Criteria

1. Signed Informed Consent obtained before any trial-related procedures.
2. Previous participation in the clinical trial ConfIdeS.

Exclusion Criteria

1\. Inability by the judgement of the investigator to participate in the trial for any reason.
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hansa Biopharma AB

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Therese Ã…kerfeldt

Role: STUDY_DIRECTOR

Hansa Biopharma AB

Locations

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University of Alabama at Birmingham (UAB) Hospital

Birmingham, Alabama, United States

Site Status

Cedars-Sinai Medical Center

Los Angeles, California, United States

Site Status

Northwestern University, Dept. General Surgery, Div. Transplantation

Chicago, Illinois, United States

Site Status

University of Chicago, Department of Surgery, Clinical Research Center

Chicago, Illinois, United States

Site Status

John Hopkins Hospital

Baltimore, Maryland, United States

Site Status

Massachusetts General Hospital

Boston, Massachusetts, United States

Site Status

Washington University School of Medicine

St Louis, Missouri, United States

Site Status

Cooperman Barnabas Medical Center

Livingston, New Jersey, United States

Site Status

New York University (NYU) Langone Transplant Institute, NYU Langone Health

New York, New York, United States

Site Status

Columbia University

New York, New York, United States

Site Status

Houston Methodist Hospital

Houston, Texas, United States

Site Status

Methodist Hospital Specialty and Transplant

San Antonio, Texas, United States

Site Status

University of Washington Medical Center

Seattle, Washington, United States

Site Status

Medical College of Wisconsin

Milwaukee, Wisconsin, United States

Site Status

Countries

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United States

Other Identifiers

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21-HMedIdes-25

Identifier Type: -

Identifier Source: org_study_id

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