- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04400045
Low Dose Treosulfan Based Conditioning Regimen in HSCT for Nijmegen Breakage Syndrome
June 23, 2020 updated by: Federal Research Institute of Pediatric Hematology, Oncology and Immunology
Clinical Open-label Phase 2 Study of Low Dose Treosulfan Based Conditioning Regimen Efficacy in Hematopoietic Stem Cell Transplantation for Children With Nijmegen Breakage Syndrome
The aim of the current study is to evaluate the safety and efficacy of low dose treosulfan based conditioning regimen in HSCT in Nijmegen breakage syndrome
Study Overview
Detailed Description
Nijmegen breakage syndrome (NBS) is a DNA repair disorder.
The only curative option for combine immunodeficiency in NBS is allogeneic hematopoietic stem cell transplantation (HSCT).
Standard myeloablative conditioning regimens in DNA repair disorders lead to increased morbidity and mortality after HSCT.
Low doses of alkylators are used to reduce toxicity rates, which, however, increase the risks of mixed chimerism and graft failure.
The data of treosulfan usage in NBS are sparse.
To evaluate the safety and efficacy of low dose treosulfan based conditioning regimen in NBS, treosulfan 21g/m2 in combination with fludarabine 150mg/mg, cyclophosphamide 40mg/kg, thymoglobulin (Genzyme) 5mg/kg and rituximab 100mg/m2 will be used from day -6 to -1 day, followed by stem cell infusion.
The primary endpoint is event-free survival, where graft failure, death, and malignancies are considered as events.
Study Type
Interventional
Enrollment (Anticipated)
10
Phase
- Phase 2
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Dmitry Balashov, MD, PhD
- Phone Number: 6534 +74952876570
- Email: bala8@yandex.ru
Study Contact Backup
- Name: Alexandra Laberko, MD
- Phone Number: 6223 74952876570
- Email: alexandra.laberko@gmail.com
Study Locations
-
-
-
Moscow, Russian Federation, 117198
- Recruiting
- HSCT department
-
Contact:
- Dmitry Balashov, MD, PhD
- Phone Number: 6534 +74952876570
- Email: bala8@yandex.ru
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
3 months to 21 years (Child, Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Patients aged ≥ 3 months and < 21 years
- Patients diagnosed with NBS eligible for an allogeneic HSCT
- Signed written informed consent signed by a parent or legal guardian
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: intervention/treatment
Fludarabine 150mg/m2 (days -6, -5, -4, -3, -2) Treosulfan 21g/m2 (days -6, -5, -4) Cyclophosphamide 40mg/kg (days -3, -2) Thymoglobulin (Genzyme) 5mg/kg (days -5, -4) Rituximab 100mg/m2 (day -1) Stem cell infusion - day 0
|
Treosulfan 21mg/m2 (days -6, -5, -4)
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Event-free survival
Time Frame: 3 years after HSCT
|
Events: graft failure, death, malignancies
|
3 years after HSCT
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Overall survival
Time Frame: 3 years after HSCT
|
3 years after HSCT
|
|
Cumulative incidence of engraftment
Time Frame: 100 days
|
100 days
|
|
Cumulative incidence of graft failure
Time Frame: 3 years
|
3 years
|
|
Cumulative incidence of viral infections
Time Frame: 1 year
|
1 year
|
|
Cumulative incidence of acute graft versus host disease
Time Frame: 1 year
|
1 year
|
|
Cumulative incidence of chronic graft versus host disease
Time Frame: 3 years
|
3 years
|
|
Incidence of early organ toxicity
Time Frame: 100 days
|
100 days
|
|
Cumulative incidence of transplant related mortality
Time Frame: 3 years
|
3 years
|
|
Incidence of long-term toxicity
Time Frame: 3 years
|
malignancies, non-malignant complications
|
3 years
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
May 22, 2020
Primary Completion (Anticipated)
May 1, 2023
Study Completion (Anticipated)
May 1, 2023
Study Registration Dates
First Submitted
May 19, 2020
First Submitted That Met QC Criteria
May 19, 2020
First Posted (Actual)
May 22, 2020
Study Record Updates
Last Update Posted (Actual)
June 25, 2020
Last Update Submitted That Met QC Criteria
June 23, 2020
Last Verified
June 1, 2020
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- NCPHOI-2020-04
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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