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Kidney transplant breakthrough? drug combo aims to reduce lifelong pills

NCT ID NCT04803006

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early This study
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested a drug called siplizumab combined with donor bone marrow cells to help kidney transplant patients potentially stop taking anti-rejection drugs long-term. Only 4 people took part before the study was ended early. The goal was to find the best dose to safely allow the body to accept the new kidney without needing lifelong medication.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

4 people

The number who actually took part.

Started

Jan 2023

Finished

Oct 2025

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 65 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Key Inclusion Criteria: * Able to understand the study requirements and provide written informed consent before any study assessment is performed * Male or female patients ≥ 18 to 65 years of age * Recipient of a first renal transplant from a non-HLA identical, but at least haploidentical, ABO compatible living donor Key Exclusion Criteria: * Women of child-bearing potential, unless willing to comply with the use of highly effective methods of contraception as defined by the protocol * A history of cancer other than basal cell carcinoma of the skin or carcinoma in situ of the cervix * Recipient with anti-HLA donor-specific antibody (DSA)

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Columbia University Irving Medical Center

    New York, New York, 10032, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.