CAR-T Cell Therapy Combined With Allogeneic Hematopoietic Stem Cell Transplantation for Relapsed or Refractory Multiple Myeloma

NCT ID: NCT06913179

Last Updated: 2025-04-06

Basic Information

• Recruitment Status: NOT_YET_RECRUITING
• Clinical Phase: PHASE1
• Total Enrollment: 30 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2025-04-01
• Study Completion Date: 2028-03-31

Brief Summary

1. Study Title CAR-T Cell Therapy Combined with Allogeneic Hematopoietic Stem Cell Transplantation for Relapsed or Refractory Multiple Myeloma

2. Study Objective This study aims to evaluate the safety and efficacy of CAR-T cell therapy followed by allogeneic hematopoietic stem cell transplantation (allo-HSCT) in patients with relapsed or refractory multiple myeloma. The goal is to explore a novel treatment strategy for this high-risk patient population.

3. Study Design This is a single-center, open-label, single-arm clinical study. A total of 30 patients with relapsed or refractory multiple myeloma will be enrolled. All participants will receive standardized CAR-T cell therapy followed by allo-HSCT and will undergo systematic observation and follow-up to assess therapeutic efficacy and safety.

4. Sample Size A total of 30 patients will be enrolled in this study.

5. Eligibility Criteria (1) Inclusion Criteria Age between 18 and 70 years; Estimated life expectancy of more than 12 weeks; Diagnosis of multiple myeloma confirmed by physical examination, pathology, laboratory tests, and imaging studies; Patients with refractory multiple myeloma; Patients with relapsed multiple myeloma; ALT and AST < 3 times the upper limit of normal; Total bilirubin < 2.0 mg/dL; Karnofsky Performance Status (KPS) > 50%; No severe dysfunction of major organs such as liver, kidney, or heart; Prior failure of autologous or allogeneic hematopoietic stem cell transplantation; Ineligible for stem cell transplantation or patients who declined transplantation due to other constraints; Voluntarily willing to receive CAR-T cell therapy for B cell-derived hematologic malignancies; Suitable for peripheral venous blood collection with no contraindications to leukapheresis; Able to understand and sign a written informed consent form.

(2) Exclusion Criteria Pregnant or lactating women, or women planning pregnancy within 6 months; Presence of infectious diseases (e.g., HIV infection, active tuberculosis); Active hepatitis B or C virus infection; Pre-screening indicates peripheral blood T-cell transduction efficiency < 10% or expansion fold < 5× under CD3/CD28 co-stimulation; Abnormal vital signs or inability to cooperate with treatment procedures; Presence of psychiatric or psychological disorders that affect treatment compliance or outcome assessment; History of severe allergy or hypersensitivity, particularly to interleukin-2 (IL-2); Systemic or localized severe infections requiring anti-infective therapy; Significant dysfunction of critical organs such as heart, lung, brain, or kidney; Patients with severe autoimmune diseases; Any other conditions deemed unsuitable for enrollment by the investigator.

6. Treatment Protocol All enrolled patients will first receive CAR-T cell therapy. Patients who achieve complete remission (CR) following CAR-T infusion will subsequently undergo allogeneic hematopoietic stem cell transplantation (allo-HSCT) based on clinical assessment. The entire treatment process will be standardized and closely monitored, with follow-up evaluations focusing on adverse events, engraftment success, relapse risk, and overall survival.

Conditions

Multiple Myeloma

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

allo-HSCT following CAR-T

All enrolled patients will first receive CAR-T cell therapy. Patients who achieve complete remission (CR) following CAR-T infusion will subsequently undergo allogeneic hematopoietic stem cell transplantation (allo-HSCT) based on clinical assessment. The entire treatment process will be standardized and closely monitored, with follow-up evaluations focusing on adverse events, engraftment success, relapse risk, and overall survival.

Group Type: EXPERIMENTAL

All enrolled patients will first receive CAR-T cell therapy. Patients who achieve complete remission following CAR-T infusion will subsequently undergo allo-HSCT

Intervention Type: BIOLOGICAL

All enrolled patients will first receive CAR-T cell therapy. Patients who achieve complete remission (CR) following CAR-T infusion will subsequently undergo allogeneic hematopoietic stem cell transplantation (allo-HSCT) based on clinical assessment. The entire treatment process will be standardized and closely monitored, with follow-up evaluations focusing on adverse events, engraftment success, relapse risk, and overall survival.

Interventions

All enrolled patients will first receive CAR-T cell therapy. Patients who achieve complete remission following CAR-T infusion will subsequently undergo allo-HSCT

All enrolled patients will first receive CAR-T cell therapy. Patients who achieve complete remission (CR) following CAR-T infusion will subsequently undergo allogeneic hematopoietic stem cell transplantation (allo-HSCT) based on clinical assessment. The entire treatment process will be standardized and closely monitored, with follow-up evaluations focusing on adverse events, engraftment success, relapse risk, and overall survival.

Intervention Type: BIOLOGICAL

Eligibility Criteria

Inclusion Criteria

Age between 18 and 70 years; Estimated life expectancy of more than 12 weeks; Diagnosis of multiple myeloma confirmed by physical examination, pathology, laboratory tests, and imaging studies; Patients with refractory multiple myeloma; Patients with relapsed multiple myeloma; ALT and AST < 3 times the upper limit of normal; Total bilirubin < 2.0 mg/dL; Karnofsky Performance Status (KPS) > 50%; No severe dysfunction of major organs such as liver, kidney, or heart; Prior failure of autologous or allogeneic hematopoietic stem cell transplantation; Ineligible for stem cell transplantation or patients who declined transplantation due to other constraints; Voluntarily willing to receive CAR-T cell therapy for B cell-derived hematologic malignancies; Suitable for peripheral venous blood collection with no contraindications to leukapheresis; Able to understand and sign a written informed consent form.

Exclusion Criteria

Pregnant or lactating women, or women planning pregnancy within 6 months; Presence of infectious diseases (e.g., HIV infection, active tuberculosis); Active hepatitis B or C virus infection; Pre-screening indicates peripheral blood T-cell transduction efficiency < 10% or expansion fold < 5× under CD3/CD28 co-stimulation; Abnormal vital signs or inability to cooperate with treatment procedures; Presence of psychiatric or psychological disorders that affect treatment compliance or outcome assessment; History of severe allergy or hypersensitivity, particularly to interleukin-2 (IL-2); Systemic or localized severe infections requiring anti-infective therapy; Significant dysfunction of critical organs such as heart, lung, brain, or kidney; Patients with severe autoimmune diseases; Any other conditions deemed unsuitable for enrollment by the investigator.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 70 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Xuzhou Medical University

OTHER

Sponsor Role: lead

Responsible Party

Kai Lin Xu，MD

Pro.

Responsibility Role: PRINCIPAL_INVESTIGATOR

Central Contacts

Kailin Xu

Role: CONTACT

lihmd@163.com

15162166166

Other Identifiers

XYFY2025-KL061-01

Identifier Type: OTHER

Identifier Source: secondary_id

XYFY2025-KL061-01

Identifier Type: -

Identifier Source: org_study_id