ClinicalTrials.gg
CompletedNCT04723303Updated Jan 24, 2025

Phase 1 Study of ULSC in Patients With Polymyositis (PM) and Dermatomyositis (DM)

An Early Phase 1 interventional study of Umbilical Cord Lining Stem Cells in Polymyositis and Dermatomyositis, sponsored by University of Florida. Completed at 1 site in United States. Open to participants aged 18 Years to 90 Years. Per ClinicalTrials.gov, last updated 2025-01-24.

Primary conditionDermatomyositisRegistry: PolymyositisReclassifiedWhy we changed it
Registry
Polymyositis — the first condition term the registry derived for this study.
ClinicalTrials.gg
Dermatomyositis
Why
  1. The study's listed conditions name Dermatomyositis, a narrower term within Polymyositis.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by University of Florida · Early Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Dec 2023, 2 years 11 months ago, and no results have been posted to the registry.
Phase
Early Phase 1
Study type
Interventional
Enrollment
10
Allocation
Not applicable
Ages
18 Years to 90 Years
Sex
All
01

Study summary

This study will investigate Umbilical Cord Lining Stem Cells (ULSC) as an investigational medicinal product and its use in patients with polymyositis (PM) or dermatomyositis (DM) to see if a single intravenous (IV) infusion of allogeneic umbilical cord lining stem cells (ULSC) safe, tolerable, and feasible to administer.

02

Conditions studied

  • Polymyositis
  • Dermatomyositis

Browse trials for

03

In context

Dermatomyositis Reclassified

184 studies on the registry are indexed under Dermatomyositis; 63 are open to participants now.

This study's enrollment of 10 is below the median of 35 across 130 interventional studies indexed under Dermatomyositis.

Browse Dermatomyositis studies →

Lead sponsor

University of Florida is the lead sponsor of 1,287 studies on the registry; 199 are open to participants now.

Of its 180 completed or terminated interventional studies of FDA-regulated products, 143 (79%) have results posted.

Compared within Dermatomyositis, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Polymyositis. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years to 90 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. Adult, male or female, age ≥18 years old
  2. Diagnosis of definite or probable DM or PM, according to the criteria of Bohan and Peter
  3. Patients with PM will either be positive for a myositis-associated antibody or have undergone evaluation to exclude mimics, as deemed appropriate by the Investigator (See Note below).
  4. Signs .

Exclusion criteria

Exclusion Criteria:

  1. A diagnosis of inclusion body myositis, juvenile DM or PM, myositis in the context of significant overlap with another systemic rheumatologic disease.
  2. Non immune myopathies.
  3. Cancer associated myositis.
  4. to study product components. History of hypersensitivity to dimethyl sulfoxide (DMSO).
  5. Pregnant or lactating women.
  6. Concomitant severe cardiac, pulmonary disease, active infection or other conditions that preclude assessment of safety and efficacy of the study product.
  7. Patients with predominant muscle atrophy secondary to uncontrolled or chronic DM or PM, based on clinical, biochemical, and/or radiologic assessment, despite previous optimized treatment.
  8. Anticipated need for surgery during the trial period.
  9. A history of prevalent noncompliance with medical therapy.
  10. Recipient of an organ transplant.
  11. Neutropenia (\<1,800/mm3 [or \<1,000/mm3 in African-American subjects]).
  12. Severe impairment in renal function (estimated \<30 ml/kg*min).
  13. Recent or planned use of vaccination with live attenuated viruses.
  14. Active cancer or prior diagnosis of cancer within the past 2 years (patients with basal and squamous cell cancer of skin will not be excluded).
  15. Condition that would impair an assessment of muscle strength, including neurological disorders such as Parkinson's disease or severe musculoskeletal condition.
  16. Any other condition that, in the judgment of the Investigator or Sponsor, would be a to enrollment, study product administration, or follow-up.
  17. History of Atrial septal defect or ventricular septal defect
Terms in these criteria, in plain language(6)

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.

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.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

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.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

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.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Early Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
10 participants (actual)

Study arms

  • Experimental
    Treatment Arm

    A single IV infusion of ULSC's in patients with DM or PM

    Drug: Umbilical Cord Lining Stem Cells

Interventions

  • DrugUmbilical Cord Lining Stem Cells

    An IV infusion of ULSCs will be administered.

06

What researchers measure

Primary outcomes

  1. Number of Subjects with Dose Limiting Toxicity (DLT) that begins during or following ULSC infusion as assessed within 24 hours.

    Dose Limiting Toxicities are treatment-emergent suspected adverse reactions graded severe, such as severe infusion-related hypersensitivity toxicities of grade ≥3, and any serious adverse event (SAE). (Note: DLT during an infusion will stop that infusion in that subject.)

    Time frame: Within 24 hours

07

Study locations

1 site
  • University of Florida
    Gainesville, Florida 32610, United States
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

Ran from Oct 2021 to primary completion in Dec 2023, 26 months.

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

Registered
Dec 8, 2020
First posted
Jan 25, 2021
StartActual
Oct 6, 2021
Primary completionActual
Dec 12, 2023
CompletionActual
Mar 8, 2024
Last update
Jan 24, 2025
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 Jan 24, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04723303
Collaborators
Restem, LLC.
Responsible party
Sponsor
First posted
Jan 25, 2021
Start date
Oct 6, 2021
Primary completion
Dec 12, 2023
Completion
Mar 8, 2024
Last update
Jan 24, 2025

Study contacts

Carl Pepine, MD
principal investigator · University of Florida

Oversight

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

Not currently enrolling

This study is completed, as verified in Jan 2025. You cannot join it, but the record below documents what was studied.

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