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Cyclophosphamide as Graft-versus-host Prophylaxis After Allogeneic Stem Cell Transplantation for Multiple Myeloma

Cyclophosphamide as Graft-versus-host Prophylaxis After Allogeneic Stem Cell Transplantation for Multiple Myeloma. A Phase II Study (Allo-MM-PostCy-Study)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03700450
Enrollment
37
Registered
2018-10-09
Start date
2018-03-16
Completion date
2022-12-01
Last updated
2025-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Multiple Myeloma

Keywords

Without detection of deletion 17p or translocation 4;14;, Post Cyclophosphamide, GvHD Prophylaxis, Allogeneic SCT

Brief summary

The present study is a multicenter, prospective phase II-study to evaluate the chronic GvHD and progression-free survival at 2 years after after allogeneic stem cell transplantation for patients with multiple myeloma.

Detailed description

The present study is a multicenter, prospective Phase II-study to evaluate the incidence of acute and chronic graft-versus-host disease at 2-years, the 2-year risk of non-relapse mortality, the 2-year progressive-free, and overall survival in patients with multiple myeloma who received a toxicity-reduced conditioning regimen combined of thiotepa and busulfan followed by allogeneic stem cell transplantation from matched or mismatched, related/unrelated and haploidentical donor, and cyclophosphamide as post-transplant GvHD prophylaxis in comparision to a historical group. In this study will further determine toxicity and safety of cyclophosphamide as GvHD prophylaxis.

Interventions

DRUGCyclophosphamide

Patients will receive on day 3 and 4 after allogeneic stem cell transplantation 50 mg/kg BW cyclophosphamide

Sponsors

Esteve Pharmaceuticals GmbH
CollaboratorUNKNOWN
Universitätsklinikum Hamburg-Eppendorf
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

All patients will receive on day 3 and 4 after allogeneic stem cell transplantation 50 mg/kg BW cyclophosphamide

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

1. Multiple myeloma newly diagnosed with deletion 17p or translocation 4;14 or multiple myeloma with 1. or 2. relapse after autologous stem cell transplantation 2. Patients age: 18 - 65 years at time of inclusion (female and male) 3. Performance status ECOG \< 2 4. Availability of haploidentical, matched or mismatched related or unrelated donor 5. Patients understand and voluntarily sign an informed consent 6. The study population includes female of childbearing potential (FOCP). FOCP have to agree to comply with the applicable contraceptive requirements of the protocol as named below for the duration of the study and 6 months after end of study or having post-menopausal status or be permanently sterilized (at least 6 weeks post-sterilization). 7. Men who are sexually active with FOCP must be instructed to use male contraception (condom) in order to avoid exposure of an existing embryo/fetus. Contraception should be continued until 6 months after end of study.

Exclusion criteria

1. Severe active infection or other uncontrolled severe conditioning 2. Severe renal, hepatic, pulmonary or cardiac disease, such as: * Total bilirubin, SGPT or SGOT \> 3 times upper the normal level * Left ventricular ejection fraction \< 30 % * Creatinine clearance \< 30 ml/min * DLCO \< 35 % and/or receiving supplementary continuous oxygen 3. Positive serology for HIV 4. Pregnant or lactating women (positive serum pregnancy test) 5. Women of child-bearing potential with unclear contraception 6. Age \< 18 and \> 65 years. 7. Uncontrolled invasive fungal infection at time of screening (baseline) 8. Serious psychiatric or psychological disorders 9. Participation in another study with ongoing use of unlicensed investigational product from 28 days before study enrollment

Design outcomes

Primary

MeasureTime frameDescription
Chronic GvHD2 yearsChronic GvHD at 2 years after allogeneic SCT
Progression-free survival2 yearsProgression-free survival at 2 years after allogeneic SCT

Secondary

MeasureTime frameDescription
Chronic GvHD1 and 2 years after allogeneic SCTIncidence of chronic GvHD at 1 and 2 years after allogeneic SCT
Toxicity of cyclophosphamidetill 2 yearsToxicity scored according to NCI CTCAE, Version 4.0
Non-relapsed mortality2 yearsNon-relapsed mortality at 2 years after allogeneic SCT
Overall Survival2 yearsOverall survival at 2 years
Progression-free Survival2 yearsProgression-free survival at 2 years
Remission ratetill 2 yearsComplete remission rate (including sCR and MRD negativity)
Acute GvHDDay +100 after allogeneic SCTIncidence of acute GvHD on Day +100 after allogeneic SCT

Countries

Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026