An experimental study in adults and adolescents who underwent stem cell transplantation and developed a sustained acute graft rejection after steroid treatment; to test the safety, tolerability and the effects of treatment with mesenchymal stromal cells MC0518

Phase 1

• Conditions: Steroid refractory Acute Graft versus host Disease; MedDRA version: 27.0Level: PTClassification code 10066260Term: Acute graft versus host diseaseSystem Organ Class: 10021428 - Immune system disorders; Therapeutic area: Diseases [C] - Immune System Diseases [C20]

• Registration Number: EUCTR2019-001462-15-DE
• Lead Sponsor: medac Gesellschaft für klinische Spezialpräparate mbH

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2020-02-04
• Last Update Posted: 15 April 2024

Recruitment & Eligibility

• Status: ot Recruiting
• Sex: All
• Target Recruitment: 210

Inclusion Criteria

- Subject had a previous allogeneic HSCT as indicated for non-malignant (including inborn errors of metabolism, primary immunodeficiencies, haemoglobinopathies, and bone marrow failure syndromes) or haematological malignant disease
- Subject has been clinically diagnosed with Grade II to IV aGvHD at the
Screening Visit.
- Subject has experienced failure of previous first line aGvHD treatment
(ie, SR aGvHD), defined as:
a. aGvHD progression within 3 to 5 days of therapy onset with = 2
mg/kg/day of prednisone equivalent or
b. failure to improve within 5 to 7 days of treatment initiation with = 2
mg/kg/day of prednisone equivalent or
c. incomplete response after > 28 days of immunosuppressive treatment
including at least 5 days with = 2 mg/kg/day of prednisone equivalent.
-Male or female subject who is = 12 years of age and = 15 kg at the
Screening Visit.
-Subject has an estimated life expectancy > 28 days at the Screening
Visit (compliance to be re-confirmed at the Baseline Visit).
-Subject, if female and of childbearing potential, agrees to use a highly
effective contraceptive measure starting at the Screening Visit and
continuing throughout the entire trial period. The definition of women of
childbearing potential (WOCBP) and a complete list of highly effective
contraceptive measures .are included in an appendix to the protocol.
-Subject, if a fertile male, agrees to sexual abstinence or to use a
condom during sexual activity with their female partner of childbearing
potential or pregnant partner. Additionally, if their partner is a WOCBP,
then their partner has to use an additional highly effective contraceptive
method during sexual activity starting at the Screening Visit and
continuing throughout the entire trial period. For theThe definition of
fertile men and a complete list of highly effective contraceptive
measures are included in an appendix to the protocol.
-Subject or parent(s) / legal guardian(s) have read, understood, and
signed the informed consent form (and informed assent form, if
applicable) according to national regulations.
Are the trial subjects under 18? yes
Number of subjects for this age range: 40
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range 160
F.1.3 Elderly (>=65 years) yes
F.1.3.1 Number of subjects for this age range 10

Exclusion Criteria

- Subject has overt relapse or progression or persistence of the underlying disease at the Screening Visit.
- Subject has received the last HSCT for a solid tumour disease.
- Subject has GvHD overlap syndrome at the Screening Visit.
- Subject has received systemic first line treatment for aGvHD other than steroids and a prophylaxis with other than calcineurin inhibitors, mammalian target of rapamycin (mTOR) inhibitors, anti thymocyte globulin (ATG), mycophenolate mofetil (MMF), methotrexate (MTX), and or cyclophosphamide before the Screening Visit (compliance to be re-confirmed at the Baseline Visit). Please Note: In vitro or in vivo graft manipulation to prevent GvHD (eg, T-cell depletion) during HSCT is permitted. Restart of initial prophylaxis
with calcineurin inhibitors or mTOR inhibitors after aGvHD onset is permitted.
- Subject has a known pregnancy (as confirmed by a positive pregnancy test at the Screening Visit) and or is breastfeeding at the Screening Visit.
- Subject has received treatment with any other investigational agent within 30 days or 5 half-lives (whichever is longer) before the Screening
Visit (compliance to be confirmed for the period between the Screening Visit and the Baseline Visit at the Baseline Visit).

Study & Design

• Study Type: Interventional clinical trial of medicinal product
• Study Design: Not specified