Recruiting
Phase 3

Sovateltide

Sponsor:

Pharmazz, Inc.

Code:

NCT05691244

Conditions

Acute Ischemic Stroke

Cerebral Stroke

Eligibility Criteria

Sex: All

Age: 18 - 70+

Healthy Volunteers: Not accepted

Interventions

Drug: Normal Saline

Sovateltide

Study Details

Brief summary:

Extensive research is being conducted in search of neuroprotective agents for possible use in the acute phase of stroke and agents that can be used for neurorepair in later stages of stroke. Several trials have been conducted and are in progress using different pharmacological agents, but none of the studies involve the stimulation of ETB receptors to treat cerebral ischemic stroke. Sovateltide (IRL-1620, PMZ-1620) has been effective in animal models of cerebral ischemic stroke. Its safety and tolerability have been demonstrated in a human phase I study with 7 subjects. Clinical phase II and III results indicate that sovateltide is a novel, first-in-class, highly effective drug candidate for treating cerebral ischemic stroke. Safety and significant efficacy in improving the National Institutes of Health Stroke Scale (NIHSS), Modified Rankin scale (mRS), and Barthel index (BI) obtained in phase II and III studies in patients with cerebral ischemic stroke in India are convincing and encouraged us to investigate its safety and efficacy in cerebral ischemic stroke patients in the United States. Therefore, the plan is to conduct a phase III clinical study to evaluate the safety and efficacy of sovateltide therapy along with standard of care in patients of acute ischemic stroke.

Conditions

Acute Ischemic Stroke

Cerebral Stroke

Study ID

NCT05691244

Start date

Jul 24, 2025

Status verified date

Dec, 2025

Completion date

Nov, 2026

Anticipated

Primary completion date

Sep, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18 - 70+

Healthy Volunteers: Not accepted

Inclusion Criteria:

A patient will be eligible for inclusion in the study if he/she fulfills the following criteria:

1. Adult males or females aged 18 - 80 years of age.
2. Consent obtained per national laws and regulations, and in accordance with the applicable ethics committee requirements prior to study procedures.
3. A stroke is ischemic in origin that is diagnosed clinically and/or radiologically confirmed by Computed Tomography (CT) scan or diagnostic magnetic resonance imaging (MRI) prior to enrolment. No hemorrhage as proved by cerebral CT/MRI scan.
4. Cerebral ischemic stroke patients presenting within 24 hours after the onset of symptoms with NIHSS score of ≥8 and <20, NIHSS Level of Consciousness (1A) score <2 at the time of screening. This includes cerebral ischemic stroke patients who completely recovered from earlier episodes before having a new or fresh stroke having a pre-stroke historical measure of mRS score of 0-2.
5. The patient is <24 hours from the time of stroke onset when the first dose of sovateltide is administered. Time of onset is when symptoms began; for stroke that occurred during sleep, time of onset is when the patient was last seen or was self- reported to be normal.
6. Reasonable expectation of availability to receive the full sovateltide/placebo course of therapy and to be available for subsequent follow-up visits.

Exclusion Criteria:

A patient will not be eligible for inclusion in this study if they meet any of the following exclusion criteria:

1. Patients receiving endovascular therapy or is a candidate for any surgical intervention for the treatment of stroke, which may include but not limited to endovascular techniques.
2. Patients classified as comatose are defined as a patient who requires repeated stimulation to attend or is obtunded and requires strong or painful stimulation to make movements (NIHSS Level of Consciousness (1A) score ≥2).
3. Evidence of intracranial hemorrhage (intracerebral hematoma, intraventricular hemorrhage, subarachnoid hemorrhage (SAH), epidural hemorrhage, acute or chronic subdural hematoma (SDH)) on the baseline CT or MRI scan.
4. Known pregnancy and lactating women.
5. Known medical history of neurological (other than current acute ischemic stroke) or psychiatric condition that, in the investigator's opinion, would confound the neurological and functional evaluations, lead to further deterioration of neurological status, or interfere with participation in this study.
6. Concurrent participation in any other therapeutic clinical trial.
7. Evidence of any other major life-threatening or serious medical condition that would prevent completion of the study protocol impair the assessment of outcome, or in which sovateltide therapy would be contraindicated or might cause harm to the patient.

Study Design

Enrollment

514 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

active comparator: Normal Saline + Standard of care

Normal saline will be used as a comparator. It will be available in a 5.0 mL vial. Three doses will be administered as an IV bolus over one minute every 3 hours ± 1 hour on day 1. The dose will be repeated on days 3 and 6 post randomization. The study drug will be administered as an IV bolus dose over 1 minute within 24 hours of the stroke onset.

experimental: Sovateltide + Standard of care

The test product is sovateltide. It is available as a lyophilized injection containing 30 µg of sovateltide in a 5.0 mL vial. Three doses of 0.3 μg/kg will be administered as an IV bolus over one minute every 3 hours ± 1 hour on day 1. The dose will be repeated on days 3 and 6 post randomization. The study drug will be administered as an IV bolus dose over 1 minute within 24 hours of the stroke onset.

Interventions

Drug: Normal Saline

Normal saline to be used as vehicle in the phase-III study to assess efficacy of sovateltide in patients with acute cerebral ischemic stroke.

Sovateltide

Phase-III study to assess efficacy of sovateltide in patients with acute cerebral ischemic stroke.

Primary outcome measure

  • Determine the efficacy of sovateltide in patients with acute cerebral ischemic stroke assessed by modified Rankin Scale (mRS) score of 0-2 at day 90 post-randomization. [ Time Frame: Day 1 through Day 90 ]

Central Contacts and Locations

Central contacts

Locations

The University of Arizona - College of Medicine

Recruiting

Tucson, Arizona, United States, 85719

Contacts

Mercy Medical Group

Recruiting

Carmichael, California, United States, 95608

St. John's Regional Medical Center

Recruiting

Oxnard, California, United States, 93030

Sarasota Memorial Hospital

Recruiting

Sarasota, Florida, United States, 34239

Wellstar Kennestone Hospital

Recruiting

Marietta, Georgia, United States, 30060

SSM Health Neurosciences

Recruiting

Bridgeton, Missouri, United States, 63044

Hackensack University Medical Center at Paramus

Recruiting

Paramus, New Jersey, United States, 07652

Contacts

Guilford Neurologic Associates Inc

Recruiting

Greensboro, North Carolina, United States, 27401

OSU Wexner Medical Center

Recruiting

Columbus, Ohio, United States, 43210

Penn State Health Milton S. Hershey Medical Center

Recruiting

Hershey, Pennsylvania, United States, 17033

Contacts

UPMC Presbyterian Hospital

Recruiting

Pittsburgh, Pennsylvania, United States, 15213

CHI Memorial Neuroscience Institute

Recruiting

Chattanooga, Tennessee, United States, 37404

Houston Medical Neurological Institute

Recruiting

Houston, Texas, United States, 77030

Memorial Hermann Hospital

Recruiting

Houston, Texas, United States, 77030

More Information

Sponsor

Pharmazz, Inc.

Last update posted

Jun 24, 2026

Last verified

Dec, 2025

Keywords

  • Endothelin B Receptors

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-08. This information was provided to ClinicalTrials.gov by Pharmazz, Inc. on 2026-06-24.