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Clinical Trials/NCT07542418
NCT07542418Not yet recruitingNot Applicable

Study of Thiotepa Combination With Melphalan (TM Protocol) Conditioning for Autologous Hematopoietic Stem Cell Transplantation in Multiple Myeloma:A Prospective Randomized Controlled Clinical Trial

First Affiliated Hospital Xi'an Jiaotong University0 sites204 target enrollmentStarted: April 20, 2026Last updated:
Conditions
Interventions

Trial Snapshot

Phase
Not Applicable
Status
Not yet recruiting
Enrollment
204
Primary Endpoint
relapse rate

Study Overview

Brief Summary

To explore the efficacy and safety of thiotepa combined with melphalan for ASCT conditioning in patients with multiple myeloma who did not acheive CR with or without extramedullary inflitration before transplantation.

After screening and enrollment, the patients were randomly divided into two groups according to 1:1, and the experimental group received the following drug treatments: the total amount of thiotepa was 10mg/kg, D-4 to -3; melphalan 140mg/m2, D-2. The control group received melphalan 200mg/m2, D-2 (the dose of the drug was adjusted according to the glomerular filtration rate). The two groups of D0 infused hematopoietic stem cells.G-CSF and TPO or TPO-RA were allowed to use to promote hematopoietic stem cell engraftment.Platelet and red blood cell transfusions were allowed if necessary. Efficacy of the therapy was evaluated 1 month after the end of transplantation, and the follow-up evaluation was carried out every 3 months, and the relapse rate was evaluated until 1 year after transplantation.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
Single (Participant)

Eligibility Criteria

Ages
18 Years to 70 Years (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • 1) Age 18-70 years old, gender is not limited; 2) Patients with confirmed multiple myeloma; 3) CR is not achieved before transplantation after treatment with or without extramedullary lesion invasion; 4) plan to undergo autologous hematopoietic stem cell transplantation; 5) recieve autologous hematopoietic stem cell transplantation within 12 months; 6) CD34 positive cell counts ≥2×106/kg; 7) The function of major organs is normal, and the laboratory test results meet the following criteria: a. Alanine aminotransferase (ALT) ≤3.0× upper limit of normal (ULN) aspartate aminotransferase (AST) ≤3.0×ULN; b. Serum total bilirubin ≤ 1.5×ULN; 8) Voluntarily participate in this clinical trial, understand the research procedures and be able to sign the informed consent forms

Exclusion Criteria

  • 1) Do not have indications for autologous hematopoietic stem cell transplantation; 2) presence of uncontrolled active infection (HIV-positive, positive for HBV-DNA and HCV-RNA quantitative tests); 3) severe respiratory diseases; 4) Severe abnormal liver function; 5) a second transplant is required; 6) Clinically significant or uncontrolled heart disease (grade III or IV congestive heart failure, EF<45%, BNP>5000ng/ml, TnT>0.06ug/L, oxygen saturation <95%, any of which) 7) Patients with other solid tumors; 8) Those who are allergic to setepa and the drug involved in the study or have a more serious allergic constitution; 9) Those who participate in other clinical research at the same time; 10) Other conditions judged by the investigator to be unsuitable for inclusion in this study.

Arms & Interventions

Experimental group

Experimental

total thiotepa 10 mg/kg, D-4 to -3; melphalan 140mg/m2, D-2 The eGFR was lower than 30ml/min, and the total dosage of thiotepa was 5mg/kg, melphalan was 100mg/m2 The eGFR ranged from 30 to 60 ml/min, and the total dosage of thiotepa was 7.5 mg/kg, and melphalan was 120 mg/m2

Intervention: Thiotepa and Melphalan (Other)

Control group

Other

melphalan 200mg/m2, D-2 The eGFR was lower than 30ml/min, melphalan was 120mg/m2 The eGFR ranged from 30 to 60 ml/min, and melphalan was 140 mg/m2

Intervention: Melphalan (Other)

Outcomes

Primary Outcomes

relapse rate

Time Frame: one year after autologous stem cell transplantation

relapse rate at one year after ASCT

Secondary Outcomes

  • hematopoietic recovery time(the first day of neutrophil more than 0.5X 10*9/L and Platelet more than 20X 10*9/L without transfusion after ASCT)
  • sCR rate(one month after ASCT)
  • OS(time from diagnosis to the end of follow-up or death which comes first)
  • PFS(time after ASCT to the end of follow-up or disease relapse which comes first)
  • NRM(rate of death without disease relapse)
  • Adverse events(within one month after ASCT)

Investigators

Sponsor Class
Other
Responsible Party
Sponsor

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