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A Study of the Safety and Efficacy of Injectable Thymosin Beta 4 for Treating Acute Myocardial Infarction

This study has suspended participant recruitment.
(Trial suspended due to drug product manufacturer not GMP compliant)
Information provided by (Responsible Party):
RegeneRx Biopharmaceuticals, Inc. Identifier:
First received: March 7, 2011
Last updated: March 19, 2015
Last verified: November 2012
The objective of this study is to evaluate the safety and tolerability of two active doses of RGN-352 (thymosin beta 4, Tβ4, Injectable Solution) in patients with acute myocardial infarction receiving percutaneous coronary intervention angioplasty with or without stent placement. Approximately 75 subjects will be randomized to receive one of two RGN-352 doses of 1200 mg, or 450 mg, or placebo, administered iv by iv push daily for the first 3 consecutive days and weekly for 4 more weeks.

Condition Intervention Phase
Acute Myocardial Infarction
ST Elevation Myocardial Infarction
Drug: Drug: Placebo
Drug: Drug: Injectable Thymosin beta 4
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Randomized, Double-blind, Placebo-Controlled, Study of the Safety and Efficacy of RGN-352 in Subjects With an Acute ST Elevation Myocardial Infarction (STEMI) After Occlusion of the Proximal Left Anterior Descending Coronary Artery

Resource links provided by NLM:

Further study details as provided by RegeneRx Biopharmaceuticals, Inc.:

Primary Outcome Measures:
  • Total MRI infarct zone derived from cardiac MRI scan [ Time Frame: Day 28 ]

Secondary Outcome Measures:
  • MRI-derived myocardial salvage index, mass, Left Ventricle (LV) ejection fraction,systolic and end diastolic volumes [ Time Frame: Day 28 ]

Estimated Enrollment: 75
Study Start Date: March 2016
Estimated Study Completion Date: August 2019
Estimated Primary Completion Date: March 2019 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: Placebo Drug: Drug: Placebo
Injectable administration by slow intravenous bolus, 0.00% Thymosin Beta 4 daily for 3 days then weekly for 4 consecutive weeks
Other Name: 0.00% Thymosin Beta 4
Active Comparator: Drug: Thymosin Beta 4 injectable Drug: Drug: Injectable Thymosin beta 4
Injectable administration of Thymosin Beta 4 by intravenous bolus at 1200 mg, or 450 mg daily for 3 days then weekly for 4 consecutive weeks
Other Names:
  • Injectable Thymosin Beta 4
  • Tβ4 Injectable Solution
  • RGN-352

Detailed Description:
This is a double-blind, placebo controlled, parallel-group, dose finding study. Eligible subjects will be randomized to receive one of two doses of RGN-352 or matching placebo with an equal allocation ratio (i.e., 1:1:1). Approximately 75 subjects will be randomized to study treatment to achieve at least 60 evaluable subjects with 20 to 25 subjects per group. Subjects will be randomized to receive one of two RGN-352 doses of 1200 mg, or 450 mg, or placebo, administered iv by iv push daily for the first 3 consecutive days and weekly for 4 consecutive weeks. Study subjects will undergo cardiac angiography to assess initial coronary artery patency and Thrombolysis In Myocardial Infarction flow grade both pre- and post-percutaneous coronary intervention (PCI) angioplasty. A total of 7 doses will be administrated over the treatment period. The first dose of either RGN-352 or placebo will be administered to randomized subjects following PCI angioplasty and specifically within 30 minutes after balloon deflation, with a further 2 doses. The remaining 4 doses will be given weekly for 4 consecutive weeks. Follow-up is on Months 2, 4, and 6.

Ages Eligible for Study:   18 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Male and female subjects
  2. Negative urine pregnancy test at Screening
  3. An electrocardiogram
  4. First acute anterior MI
  5. Baseline angiography
  6. Onset of chest pain symptoms to initial PCI angioplasty time is 2 to 6 hours
  7. Written informed consent reviewed and signed by the subject or legally authorized representatives

Exclusion Criteria:

  1. Intention to treat subject with thrombolytic therapy following assertion of Thrombolysis In Myocardial Infarction(TIMI) flow 0 or 1 during qualifying angiogram
  2. History of Myocardial infarctionI or congestive heart failure
  3. Non-atherosclerotic etiology of acute myocardial infarction
  4. Cardiogenic shock (systolic blood pressure <90 despite adequate left ventricle filling pressure or requiring catecholamines) or other hemodynamic instability at baseline
  5. Further transcatheter or surgical revascularization, e.g., coronary artery bypass graft planned per baseline angiogram
  6. Lactating women
  7. Past or present evidence of malignancy
  8. Women who have had menarche but have not completed menopause, have not been surgically sterilized (bilateral tubal ligation or hysterectomy), do not have a partner with documented sterility (including vasectomy), or are not using adequate contraception (combined hormonal or double-barrier method of contraception, or sexual abstinence are the only methods of contraception acceptable for this study)
  9. Ongoing infectious disease including human immunodeficiency virus (HIV) and hepatitis
  10. Clinically significant respiratory, renal, metabolic, liver, central nervous system or other comorbid disease, except current cardiovascular disease
  Contacts and Locations
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Please refer to this study by its identifier: NCT01311518

United States, Indiana
St. Vincent Indianapolis Hospital
Indianapolis, Indiana, United States, 46260
United States, New Jersey
The Valley Hospital
Ridgewood, New Jersey, United States, 07450
Sponsors and Collaborators
RegeneRx Biopharmaceuticals, Inc.
Study Director: John Strobeck, MD The Valley Hospital , Ridegewood, NJ 07450
Study Director: Zachary Hodes, MD St Vincent Indianapolis Hospital
  More Information

Responsible Party: RegeneRx Biopharmaceuticals, Inc. Identifier: NCT01311518     History of Changes
Other Study ID Numbers: RGN-MI-201
Study First Received: March 7, 2011
Last Updated: March 19, 2015

Keywords provided by RegeneRx Biopharmaceuticals, Inc.:
Thymosin Beta 4
Thymosin β4 (Tβ4) Injectable Solution

Additional relevant MeSH terms:
Myocardial Infarction
Pathologic Processes
Myocardial Ischemia
Heart Diseases
Cardiovascular Diseases
Vascular Diseases processed this record on May 25, 2017