NCT05925608

Brief Summary

This clinical study will utilize allogenic bone marrow-derived culture-expanded MSC that are expanded from mesenchymal stem cells and delivered using the investigational Helix transendocardial delivery catheter as a therapy for ischemic HFrEF with reduced ejection fraction.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
39

participants targeted

Target at P50-P75 for phase_1

Timeline
19mo left

Started Aug 2023

Longer than P75 for phase_1

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress63%
Aug 2023Dec 2027

First Submitted

Initial submission to the registry

June 22, 2023

Completed
7 days until next milestone

First Posted

Study publicly available on registry

June 29, 2023

Completed
2 months until next milestone

Study Start

First participant enrolled

August 23, 2023

Completed
3.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2026

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2027

Last Updated

December 12, 2025

Status Verified

December 1, 2025

Enrollment Period

3.3 years

First QC Date

June 22, 2023

Last Update Submit

December 10, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Treatment-emergent serious adverse events

    Incidence of TE-SAE defined as a composite of death, non-fatal MI, stroke, worsening HF (requiring admission, iv diuretics and/or inotropics), myocardial perforation (with tamponade), ventricular arrythmias \>15 seconds

    Through 30 days post-procedure.

  • Composite endpoint consisting of all cause or cardiac death, non-fatal cardiac-related hospitalizations and functional capacity measured using the 6 minute walk distance.

    The primary efficacy endpoint is a composite endpoint based on a 3-tiered Finkelstein-Schoenfeld (FS) hierarchical analysis. The tiers, starting with the most serious events, would be (1) all cause death, including cardiac death equivalents such as heart transplant or left ventricular assist device placement, ordered by time to event; (2) non-fatal MACCE events excluding those deemed procedure related occurring within the first 7 days (heart failure hospitalization, stroke or MI) ordered by time to event, and (3) change for 6MWD.

    Through Month 12

Secondary Outcomes (3)

  • Overall survival

    Through 12 months

  • Major Adverse Cardiac Events (MACE)

    Through 12 months

  • Minnesota Living with Heart Failure Questionnaire

    Through 12 months

Study Arms (2)

Study Treatment

ACTIVE COMPARATOR

Phase I of the study will utilize a dose escalation study design with three patients at 20 million MSCs, three patients at 100 million MSC, and three patients at 200 million MSC to identify dose for Phase II. The study treatment (active comparator) is comprised of left ventricular catheterization and treatment with allogeneic hMSC using the Helix transendocardial delivery catheter.

Combination Product: CardiALLO™ Human Allogenic Culture-expanded Bone marrow-derived Mesenchymal Stem Cells (hMSCs)

Control

SHAM COMPARATOR

In Phase II of the study, the control group will undergo left ventricular catheterization with introduction of an iliofemoral sheath but no introduction of the Helix transendocardial delivery catheter but no administration of allogeneic hMSC with the Helix transendocardial delivery catheter.

Diagnostic Test: Diagnostic Catheterization

Interventions

CardiALLO™ Human Allogenic Culture-expanded Bone marrow-derived Mesenchymal Stem Cells (hMSCs) delivered with the Helix transendocardial delivery catheter (treatment)

Study Treatment

Left ventricular catheterization with no active therapy

Control

Eligibility Criteria

Age21 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • New York Heart Association (NYHA) Class II or III
  • Diagnosis of chronic ischemic left ventricular dysfunction secondary to myocardial infarction
  • Left ventricular ejection fraction between 20% and 40%
  • On stable, guideline-directed medical and device therapy, as appropriate
  • NTproBNP level of \>500 pg/ml.
  • Have inflammation \> 2 mg/L as measured by high-sensitivity C-reactive protein (hs-CRP) test.

You may not qualify if:

  • Other cardiovascular or medical history parameters, as appropriate, that may preclude safe administration of the study treatment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Florida

Gainesville, Florida, 36210, United States

Location

MeSH Terms

Conditions

Heart Failure, Systolic

Condition Hierarchy (Ancestors)

Heart FailureHeart DiseasesCardiovascular Diseases

Study Officials

  • Carl Pepine, MD

    University of Florida

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Masking Details
Phase I requires no masking as all participants will receive one of the three cell doses. Phase II requires masking in order to evaluate treatment effect. Patients will randomized 2:1 to either the treatment or control groups.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Phase I: Dose escalation, safety study consisting of 3 cell doses of 20million, 100 million and 200 million allogeneic hMSC. Each dose cohort will consist of 3 patients. Phase II: Randomized, controlled trial to evaluate the treatment.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 22, 2023

First Posted

June 29, 2023

Study Start

August 23, 2023

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2027

Last Updated

December 12, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Locations