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Not yet recruitingNCT07452822Updated Mar 5, 2026

Safety and Efficacy Study of Human Umbilical Cord Mesenchymal Stem Cells in Preventing Arteriovenous Fistula Stenosis in Patients With End-Stage Diabetic Kidney Disease

A Phase 1/2 interventional study of Human umbilical cord mesenchymal stem cells injection and saline solution in Arteriovenous Fistula Stenosis, sponsored by Jiangsu Topcel-KH Pharmaceutical Co., Ltd.. Not yet recruiting. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-03-05.

Sponsored by Jiangsu Topcel-KH Pharmaceutical Co., Ltd. · Phase 1/2, Interventional, and Prevention

Phase
Phase 1/2
Study type
Interventional
Enrollment
54
Allocation
Randomized
Ages
18 Years to 70 Years
Sex
All
01

Study summary

A Study on the Safety and Efficacy of Human Umbilical Cord Mesenchymal Stem Cells in Preventing Arteriovenous Fistula Stenosis

02

Conditions studied

  • Arteriovenous Fistula Stenosis
03

In context

Arteriovenous Fistula

247 studies on the registry are indexed under Arteriovenous Fistula; 44 are open to participants now.

This study's planned enrollment of 54 is below the median of 64 across 166 interventional studies indexed under Arteriovenous Fistula.

Browse Arteriovenous Fistula studies →

Lead sponsor

Jiangsu Topcel-KH Pharmaceutical Co., Ltd. is the lead sponsor of 9 studies on the registry; 7 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Diabetic nephropathy with estimated (eGFR) \< 15 mL/min·1.73m²;
  2. Requirement for creation of primary forearm cephalic vein-radial artery autologous arteriovenous fistula ;
  3. Vessel criteria: cephalic vein diameter ≥ 2.0 mm (after tourniquet inflation) and radial artery diameter ≥ 1.5 mm;
  4. Subject agrees to comply with the study treatment plan and visit schedule, is voluntarily enrolled, and has provided written .

Exclusion criteria

Exclusion Criteria:

  1. Patients with conditions unsuitable for AVF, including surgical site infection, uncontrolled heart failure, malignant tumor, or hypotension;
  2. Patients with stenosis or adjacent lesions in the proximal upper extremity vessels or central veins that affect arterial inflow or venous outflow;
  3. Patients with a history of pacemaker implantation;
  4. Patients with known to human serum albumin, human lysate, gentamicin sulfate, anesthetic agents, or other related products;
  5. Positive for surface antigen, virus antibody, treponema pallidum antibody, or antibody;
  6. Subjects who have participated in, are currently participating in, or plan to participate in other interventional clinical trials within 30 days prior to screening or during the study period;
  7. Any other conditions deemed inappropriate by the investigator for enrollment in this study.
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
54 participants (estimated)

Study arms

  • Experimental
    MSCs treatment group

    Human umbilical cord mesenchymal stem cells injection is a human expanded umbilical cord mesenchymal stem cells suspension

    Biological: Human umbilical cord mesenchymal stem cells injection

  • Placebo comparator
    Placebo-control group

    Saline solution

    Other: saline solution

Interventions

  • Pahse 1: Patients will be enrolled into one of three cohorts to receive single injection of human umbilical cord mesenchymal stem cells injection(5×10\^5 cells × vascular surface area (cm²), 2.5×10\^6 cells × vascular surface area (cm²), 5×10\^6 cells × vascular surface area (cm²)). Phase 2: Based on the data obtained from Phase 1, the investigator will select one dose cohort to conduct study.

  • Othersaline solution

    Phase 2: Saline solution will be given at the same quantity and following the same schedule

06

What researchers measure

Primary outcomes

  1. Dose-limiting toxicity (DLT)

    Phase1: Exploration of dose-limiting toxicity (DLT) and the optimal dose for the phase 2 after the admistration of human umbilical cord mesenchymal stem cells injection.

    Time frame: Day 28

  2. Evaluating the efficacy of human umbilical cord mesenchymal stem cells injection in preventing stenosis

    Phase2: Observation the primary patency rate and secondary patency rate of the AVF after administration of human umbilical cord mesenchymal stem cells

    Time frame: 3 months

Secondary outcomes

  1. Primary patency rate and secondary patency rate

    Observation the primary patency rate and secondary patency rate of the AVF after surgery.

    Time frame: 1 year

  2. Incidence of infection complications

    Observation the incidence of infection complications after AVF surgery

    Time frame: 1 year

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Feb 2026; primary completion for Mar 2027, 13 months later.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 1, 2026
First posted
Mar 5, 2026
StartEst.
Feb 20, 2026
Primary completionEst.
Mar 30, 2027
CompletionEst.
Mar 30, 2028
Last update
Mar 5, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 5, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07452822
Lead sponsor
Jiangsu Topcel-KH Pharmaceutical Co., Ltd.
Responsible party
Sponsor
First posted
Mar 5, 2026
Start date
Feb 20, 2026 (estimated)
Primary completion
Mar 30, 2027 (estimated)
Completion
Mar 30, 2028 (estimated)
Last update
Mar 5, 2026

Study contacts

Jianhua Dong
Contact
dongjianhua007@126.com
02580864326

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Solizmestrocel

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