The Maximum Tolerated Dose of Mesenchymal Stem Cells From Umbilical Cord

Study Overview
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Brief Summary
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The aim of this study was to evaluate the maximum tolerated dose of Mesenchymal Stem Cells (MSCs) from umbilical cord in the treatment of human knee OA

Detailed Description
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This is a single-centre, quadruple blined, randomized controlled trail with a total of 9 knee osteoarthrits patients as participants, who will be randomly assigned into high dose group, moderate dose group or low dose group. The participants in the high dose group will receive the treatment of high dose MSCs (1×10^8cells/3mL) anticular injection.The dose of the MSCs in medium dose group is 5×10^7cells/3mL, and the dose in the low dose group is 1×10^7cells/3mL. Unexplained local and systemic symptoms will be assessed to determine the the maximum tolerated dose of mesenchymal stem cells in anticular injection.

Official Title
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Evaluating the Maximum Tolerated Dose of Mesenchymal Stem Cells From Umbilical

Conditions
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Knee Osteoarthritis, Umbilical Cord Bleeding

Intervention / Treatment
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* Drug: mesenchymal stem cells


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: ① K / L score of 2-3; ② chronic knee pain; ③ no local or systemic infection; ④ without obvious contraindication of the joint puncture from hematology and biochemical tests; ⑤ informed consent. - Exclusion Criteria: ① older than 75 years old or less than 18 years old, or without full capacity for civil conduct; ② HIV, hepatitis virus or syphilis virus infection or their serology is positive; ③ BMI index is greater than 30; ④ congenital or acquired knee deformity; ⑤ pregnant or lactating women; ⑥ tumor patients; ⑦ immunodeficiency patients; ⑧ intra-articular drug injection history within 3 months; ⑨ participating in other clinical trials; ⑩ other patients who researchers believe are not eligible for inclusion such as suffering from other concomitant diseases.-

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: low dose of mesenchymal stem cells<br>Three groups of patients were enrolled in this study. Every group includes three patients. The three groups of patients were treated with high, medium and low dose of cytokine.The low-dose is 1 × 10^7cells / 3mL | Drug: mesenchymal stem cells<br>* we will enroll three groups of patients, and they will be therapized by high, medium, and low-dose cytotoxic respectively to evaluate the dose-limiting toxicity (DLT) and establish the maximum tolerated dose (MTD). Dose and cell concentration selection will be based on previous literature [5]. The low-dose is 1 × 10^7cells / 3mL, the medium-dose is 5 × 10^7cells / 3mL and the high dose is 1 × 10^8cells / 3mL<br>|
| Experimental: medium dose of mesenchymal stem cells<br>the medium-dose is 5 × 10^7cells / 3mL | Drug: mesenchymal stem cells<br>* we will enroll three groups of patients, and they will be therapized by high, medium, and low-dose cytotoxic respectively to evaluate the dose-limiting toxicity (DLT) and establish the maximum tolerated dose (MTD). Dose and cell concentration selection will be based on previous literature [5]. The low-dose is 1 × 10^7cells / 3mL, the medium-dose is 5 × 10^7cells / 3mL and the high dose is 1 × 10^8cells / 3mL<br>|
| Experimental: high dose of mesenchymal stem cells<br>the high dose is 1 × 10^8cells / 3mL | Drug: mesenchymal stem cells<br>* we will enroll three groups of patients, and they will be therapized by high, medium, and low-dose cytotoxic respectively to evaluate the dose-limiting toxicity (DLT) and establish the maximum tolerated dose (MTD). Dose and cell concentration selection will be based on previous literature [5]. The low-dose is 1 × 10^7cells / 3mL, the medium-dose is 5 × 10^7cells / 3mL and the high dose is 1 × 10^8cells / 3mL<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Unexplained local and systemic symptoms or death | The severity of AE must be recorded and graded according to the CTCAE criteria, and its relationship to therapy must be assessed according to the following definition:①not related: there is evidence that the cause of adverse events is not due to intra-articular injection therapy (such as previous conditions, potential diseases, concurrent diseases); ②related: AE and intra-articular injection are time-related and it is known or suspected that intra-articular injection of drugs can cause the AE; ③it can't be assessed. | 6 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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mesenchymal stem cells, Knee Osteoarthritis, Umbilical Cord