Purpose

The purpose of this research study is to test the safety and benefit of a human cord blood derived stem cell infusion as a treatment for individuals with post COVID-19 neurological problems. Participants in the study will have 6 clinic visits over a 12 to 14 mo. period with each visit lasting 2 to 6 hours. Participants will receive 1 stem cell infusion at study visit #3. Participants will have a brain PET and MRI scan at the baseline and 6mo. post-infusion visits. Follow-up safety assessments will be conducted at 6mo. and 1yr. after the stem cell infusion.

Condition

Eligibility

Eligible Ages
Between 18 Years and 55 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  1. Adults between 18 and 55 years of age. 2. Documented history of COVID-19 infection with resulting neurological sequela. 3. Post-Covid-19 Functional Status score of grades 3 or 4. 4. Chronic neurological symptoms defined as anxiety/depression, pain syndromes, sleep disorders, and /or memory disorders ("brain fog") persisting 6 months after an acute COVID-19 infection. 5. Ability to obtain consent from the subject. 6. Ability to communicate in English or Spanish (required for validated neurocognitive outcome testing).

Exclusion Criteria

  1. Known history of: 1. intellectual deficiency or psychiatric conditions likely to invalidate our ability to assess changes in cognition or behavior, 2. recently treated infection, 3. renal disease or altered renal function (screening serum creatinine > 1.5 mg/dL), 4. hepatic disease or altered liver function (screening SGPT > 150 U/L and/or T. Bilirubin >1.3 mg/dL), 5. cancer, 6. immunosuppression (screening WBC < 3, 000 cells/ml), 7. HIV+, 8. chemical or ETOH dependency that in the opinion of the investigator would preclude participation in the study, 9. acute or chronic lung disease requiring significant medication/oxygen supplementation, 10. bleeding disorders including immune-mediated heparin-induced thrombocytopenia, 11. hypercoagulable disorders (Protein C, S, ATIII deficiencies), Factor V Leiden, 12. known sensitivity to heparin, Lovenox, and pork products, 13. individuals with mechanical prosthetic heart valves. 2. Pulse oximetry oxygen saturation <93% on room air. 3. Other acute or chronic medical conditions that, in the opinion of the investigator, may increase the risks associated with study participation. 4. For women of childbearing potential, a positive pregnancy test at the screening visit or, for both women and men, unwillingness to comply with acceptable methods of birth control during the study. 5. Previous or concurrent participation in an interventional drug or biological study. 6. Inability to undergo the diagnostic tests (PET/DT-MRI) or unwilling/unable to cooperate with the diagnostic tests and outcome assessments. 7. Unwilling or unable to return for follow-up study visits. 8. Prisoner/Incarcerated.

Study Design

Phase
Phase 1
Study Type
Interventional
Allocation
Non-Randomized
Intervention Model
Sequential Assignment
Intervention Model Description
Non-Randomized, Phase 1/2a dose escalation using 4X10^6/kg, 6X10^6/kg and 8X10^6/kg and 10X10^10/kg cohorts of 3 patients using an adaptive Bayesian design based upon infusional toxicity/safety.
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
4x10^6 Cells/kg Dose Group
This is a adaptive Baysian dose escalation study. The first 3 subjects will receive one stem cell infusion of 4x10^6 Cells/kg. If no infusion related AE/SAE are found, the next cohort will receive the next highest stem cell dose.
  • Biological: Stem Cell
    Stem cells derived from human cord tissue.
    Other names:
    • Allogenic Human Cord Tissue Derived Mesenchymal Stromal Cells (hCTMSCs)
Experimental
6x10^6 Cells/kg Dose Group
The next cohort of 3 subjects will receive one stem cell infusion of 6x10^6 Cells/kg. If no infusion related AE/SAE are found, the next cohort will receive the next highest stem cell dose.
  • Biological: Stem Cell
    Stem cells derived from human cord tissue.
    Other names:
    • Allogenic Human Cord Tissue Derived Mesenchymal Stromal Cells (hCTMSCs)
Experimental
8x10^6 Cells/kg Dose Group
The next cohort of 3 subjects will receive one stem cell infusion of 8x10^6 Cells/kg. If no infusion related AE/SAE are found, the next cohort will receive the next highest stem cell dose.
  • Biological: Stem Cell
    Stem cells derived from human cord tissue.
    Other names:
    • Allogenic Human Cord Tissue Derived Mesenchymal Stromal Cells (hCTMSCs)
Experimental
10x10^6 Cells/kg Dose Group
The last cohort of 3 subjects will receive one infusion of 10x10^6 Cells/kg.
  • Biological: Stem Cell
    Stem cells derived from human cord tissue.
    Other names:
    • Allogenic Human Cord Tissue Derived Mesenchymal Stromal Cells (hCTMSCs)

Recruiting Locations

More Details

NCT ID
NCT06156241
Status
Unknown status
Sponsor
Charles Cox

Study Contact

Charles S. Cox, MD
713.500.7300
charles.s.cox@uth.tmc.edu

Detailed Description

This is a non-randomized, Phase 1/2a dose escalation study using allogenic cord tissue MSC's in adults with chronic neurological symptoms following an acute COVID-19 infection.

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.