NCT05329935

Brief Summary

This Congenital Athymia Patient Registry is an observational exposure-based registry study. It uses a prospective cohort design to follow patients who have been treated with RETHYMIC. Clinical studies conducted with investigational RETHYMIC showed that treatment can result in immune reconstitution and prolong life. This treatment-based registry is being conducted to learn more about the reconstitution process following treatment and the impact of treatment on longer-term survival and the occurrence of adverse events of special interest (AESI).

Trial Health

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Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
75

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started May 2022

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 24, 2022

Completed
22 days until next milestone

First Posted

Study publicly available on registry

April 15, 2022

Completed
1 month until next milestone

Study Start

First participant enrolled

May 25, 2022

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2026

Completed
Last Updated

August 19, 2025

Status Verified

August 1, 2025

Enrollment Period

3.9 years

First QC Date

March 24, 2022

Last Update Submit

August 14, 2025

Conditions

Keywords

Congenital Athymia

Outcome Measures

Primary Outcomes (2)

  • Vital Status

    12 months post treatment with RETHYMIC.

  • Flow cytometry including total and naïve CD3, CD4, and CD8 counts

    Immediately after the intervention/procedure/surgery

Secondary Outcomes (1)

  • AESI classified by MedDRA coding, severity and grade

    Immediately after the intervention/procedure/surgery

Study Arms (2)

Main cohort

All eligible patients

Biological: Cultured Thymus Tissue

Secondary cohort

All eligible patients who survived 1 year post treatment

Biological: Cultured Thymus Tissue

Interventions

Product will be surgically administered into the quadriceps

Also known as: RETHYMIC, allogeneic cultured thymus tissue-agdc
Main cohortSecondary cohort

Eligibility Criteria

Age0 Years - 21 Years
Sexall
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Pediatric patients diagnosed with Congenital Athymia: • Who are scheduled for implantation with RETHYMIC within the next 30 days, or who were treated with RETHYMIC within the previous 60 days.

You may qualify if:

  • Pediatric patients diagnosed with Congenital Athymia:
  • Who are scheduled for implantation with RETHYMIC within the next 30 days, or who were treated with RETHYMIC within the previous 60 days.
  • Who have provided written informed consent directly, or written informed consent has been provided by the patient, the parent, or legal guardian.

You may not qualify if:

  • Written informed consent cannot be obtained.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Duke University School of Medicine

Durham, North Carolina, 27710, United States

RECRUITING

Related Publications (1)

  • RETHYMIC US Prescribing Information, 2021.

    BACKGROUND

Central Study Contacts

John Sleasman, M.D.

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
OTHER
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 24, 2022

First Posted

April 15, 2022

Study Start

May 25, 2022

Primary Completion

April 1, 2026

Study Completion

April 1, 2026

Last Updated

August 19, 2025

Record last verified: 2025-08

Locations