Clinical Trials Logo

Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT06171906
Other study ID # MSC4PGF
Secondary ID
Status Not yet recruiting
Phase Phase 4
First received
Last updated
Start date January 1, 2024
Est. completion date November 1, 2028

Study information

Verified date December 2023
Source Southwest Hospital, China
Contact Lei Gao, M.D., Ph.D.
Phone 023-68774330
Email gaolei7765@163.com
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is an effective approach for treating both benign and malignant blood disorders. It primarily involves high-dose chemotherapy to eliminate tumor cells within the patient's body, as well as to suppress the recipient's hematopoiesis and immune function. The transplantation replaces the recipient's original hematopoietic stem cells (HSCs) with donor-derived HSCs, thereby reconstructing the donor's hematopoietic and immune functions to achieve disease cure. Poor graft function (PGF) following transplantation, which refers to inadequate engraftment of the transplanted hematopoietic stem cells, is one of the major factors limiting the effectiveness of allo-HSCT. Mesenchymal stromal cells (MSCs), identified within the bone marrow stroma, are a type of non-hematopoietic multipotent stem cells. Several studies, including previous research by our research team, suggest that MSCs can improve the bone marrow hematopoietic microenvironment by secreting various cytokines. This leads to the promotion of hematopoietic stem cell proliferation and differentiation, enhancement of hematopoietic function, and support for hematopoiesis as well as direct or indirect promotion of vascular regeneration in damaged tissues and organs. Therefore, exploring the efficacy of umbilical cord-derived MSCs in treating poor graft function after allo-HSCT, observing the recovery of blood parameters in patients with poor engraftment, monitoring transplantation-related complications and immune reconstitution, and conducting preliminary investigations into the underlying mechanisms can contribute to the exploration of new clinical techniques for the treatment of PGF following allo-HSCT.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 68
Est. completion date November 1, 2028
Est. primary completion date October 1, 2025
Accepts healthy volunteers No
Gender All
Age group 18 Years to 60 Years
Eligibility Inclusion Criteria: 1. Screening patients for allogeneic hematopoietic stem cell transplantation; 2. No gender limit, age =18 years old and =60 years old; 3. KPS score >60 points, expected survival period >3 months; 4. Those without serious functional damage to important organs throughout the body; 5. The patient has no other contraindications to hematopoietic stem cell transplantation 6. Voluntary test and informed consent. Exclusion Criteria: 1. Have severe heart, kidney or liver dysfunction; 2. Those combined with other malignant tumors need treatment; 3. There are clinical symptoms of brain dysfunction or severe mental illness and the inability to understand or follow the research protocol; 4. Patients who cannot be guaranteed to complete the necessary treatment plan and follow-up observation; 5. Patients with severe acute allergic reactions; 6. Clinically uncontrolled active infection; 7. Patients who are participating in other clinical trials; 8. Researchers believe that the subject is not suitable for clinical trials for other reasons.

Study Design


Related Conditions & MeSH terms


Intervention

Biological:
mesenchymal stromal cells
On the basis of conventional PGF treatment for poor implantation, the enrolled patients were injected with 1×10^6/kg mesenchymal stem cells of cord blood weekly for 4 consecutive weeks

Locations

Country Name City State
China Second Affiliated Hospital, Army Medical University, PLA Chongqing
China Xinqiao Hospital Chongqing Shapingba District

Sponsors (2)

Lead Sponsor Collaborator
ShiCang Yu Xinqiao Hospital of Chongqing

Country where clinical trial is conducted

China, 

References & Publications (2)

Kong Y, Song Y, Tang FF, Zhao HY, Chen YH, Han W, Yan CH, Wang Y, Zhang XH, Xu LP, Huang XJ. N-acetyl-L-cysteine improves mesenchymal stem cell function in prolonged isolated thrombocytopenia post-allotransplant. Br J Haematol. 2018 Mar;180(6):863-878. doi: 10.1111/bjh.15119. Epub 2018 Feb 2. — View Citation

Michalicka M, Boisjoli G, Jahan S, Hovey O, Doxtator E, Abu-Khader A, Pasha R, Pineault N. Human Bone Marrow Mesenchymal Stromal Cell-Derived Osteoblasts Promote the Expansion of Hematopoietic Progenitors Through Beta-Catenin and Notch Signaling Pathways. Stem Cells Dev. 2017 Dec 15;26(24):1735-1748. doi: 10.1089/scd.2017.0133. Epub 2017 Nov 27. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary The Hemogram recovery of patients with poor graft function after treatment White blood cells: neutrophil engraftment is defined as neutrophils exceeding 0.5×10^9/L for 3 consecutive days; red blood cells: hemoglobin is not less than 70g/L, and is free of blood transfusion; Platelets: Complete response is defined as platelet count =50×10^9/L, continuous for 7 days without platelet transfusion; Partial response (PR) is defined as platelet count (20~50)×10^9/L, continuous Weaning from platelet transfusion at 7 days; no response (NR) is defined as 8 weeks of use at the maximum tolerated dose, platelet count <20×10^9/L or not weaning from platelet transfusion 20~40 days after transplantation
Secondary Infection rate Unexpected problems that may occur to the patient or others 20~40 days after transplantation
Secondary graft-versus-host disease Graft-versus-host disease (GVHD) is a potentially serious complication of allogeneic stem cell transplantation and reduced-intensity allogeneic stem cell transplantation. within the initial 30 to 60 days or further
Secondary survival rate 1-year overall survival and disease-free survival 1 year after transplantation
See also
  Status Clinical Trial Phase
Active, not recruiting NCT03028428 - Intra-articular Injection of MSCs in Treatment of Knee OA Phase 2