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Lomecel-B medicinal signaling cells

Phase 2

Hypoplastic Left Heart Syndrome | Monoclonal antibody | Cardiovascular |Longeveron Inc.|Last Updated: Jun 25, 2025

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindNO_TREATMENT_CONTROLLEDDMC
Total Trials1
Total Enrollment40

FDA Designations

FAST_TRACKRMATORPHAN_DRUGRARE_PEDIATRIC_DISEASE

Clinical trial landscape

Lomecel-B medicinal signaling cells · 1 trial · 1 indication

Phase 2 1
NCT04925024Evaluation of Lomecel-B™ Injection in Patients With Hypoplastic Left Heart Syndrome (HLHS): A Phase IIb Clinical Trial.Hypoplastic Left Heart Syndrome
ACTIVE NOT_RECRUITING40 Analytics
PHASE2ACTIVE NOT_RECRUITING
Evaluation of Lomecel-B™ Injection in Patients With Hypoplastic Left Heart Syndrome (HLHS): A Phase IIb Clinical Trial.
Hypoplastic Left Heart SyndromeUnlock trial analytics

Study Endpoints

Primary Endpoints

Change in right ventricular ejection fraction (RVEF)
Baseline, 12 Months

Efficacy will be reported as change in right ventricular ejection fraction (RVEF) assessed as a percentage and will be measured via cardiac magnetic resonance (CMR) imaging.

Secondary Endpoints

Change in right ventricular ejection fraction (RVEF)
Baseline, 6 Months
Change in right ventricular mass index at diastole
Baseline, 12 Months
Change in right ventricular end-diastolic volume index (RVEDVI)
Baseline, 12 Months
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Lomecel B GroupEXPERIMENTALParticipants randomized to receive Lomecel-B injections during their Stage II palliation.
No Study Intervention Control GroupNO_INTERVENTIONParticipants randomized to receive no study intervention during their Stage II palliation.

Interventions

NameTypeDescription
Lomecel-B medicinal signaling cellsBIOLOGICALA single administration of Lomecel-B will be performed via 6-10 intramyocardial injections into the right ventricle during the participant's standard of care stage II palliation. Dosing is based on body weight. Each patient will be given 2.5 x 10\^5 cells per kg of body weight. The entire dose of the cells will be roughly 600 microliters.
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Eligibility Criteria

Age RangeN/A to 12 Months
SexALL
Healthy VolunteersNo
Study Sites10

Inclusion: All participants must have HLHS (includes all types) requiring Stage II palliation (Glenn or Hemi-Fontan operation). Exclusion: 1. Requirement for ongoing mechanical circulatory support immediately prior to Stage II palliation within 5 days 2. Need for concomitant surgery for aortic co...

Countries:United States
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Frequently asked questions about Lomecel-B medicinal signaling cells

What is Lomecel-B medicinal signaling cells used for?

Lomecel-B medicinal signaling cells is an investigational cell therapy being studied for Hypoplastic Left Heart Syndrome (HLHS), a severe congenital heart defect. It is currently in Phase 2 clinical development and has not been approved by the FDA. The therapy is being evaluated in a randomized, double-blind, placebo-controlled trial.

How does Lomecel-B medicinal signaling cells work?

Lomecel-B medicinal signaling cells is a cell therapy being developed by Longeveron Inc. (NASDAQ: LGVN). It is designed to deliver medicinal signaling cells that may help repair or regenerate damaged heart tissue in patients with Hypoplastic Left Heart Syndrome. The exact mechanism of action is not fully detailed in the available information.

Who makes Lomecel-B medicinal signaling cells?

Lomecel-B medicinal signaling cells is being developed by Longeveron Inc., a clinical-stage biotechnology company traded on NASDAQ under the ticker symbol LGVN. The company is conducting a Phase 2 clinical trial to evaluate the therapy in patients with Hypoplastic Left Heart Syndrome.

What phase is Lomecel-B medicinal signaling cells in?

Lomecel-B medicinal signaling cells is in Phase 2 clinical development. It is currently being studied in a Phase IIb trial for Hypoplastic Left Heart Syndrome. The therapy has received Fast Track, Regenerative Medicine Advanced Therapy (RMAT), Orphan Drug, and Rare Pediatric Disease designations from the FDA, but it is not yet approved.

What clinical trials is Lomecel-B medicinal signaling cells in?

Lomecel-B is being evaluated in a Phase IIb clinical trial with the identifier NCT04925024. This randomized, double-blind, placebo-controlled study is enrolling 40 patients with Hypoplastic Left Heart Syndrome in the United States. The trial is currently active but not recruiting participants.

Is Lomecel-B medicinal signaling cells the same as Lomecel-B?

Yes, Lomecel-B medicinal signaling cells is the same as Lomecel-B. The full name includes the descriptive term 'medicinal signaling cells' to characterize the cell therapy. It is being developed by Longeveron Inc. for the treatment of Hypoplastic Left Heart Syndrome.