RLS-0071 for Newborns with Hypoxic-Ischemic Encephalopathy

This study is testing a new drug called RLS-0071 for newborns with moderate or severe hypoxic-ischemic encephalopathy (HIE), a condition where the brain doesn't get enough oxygen or blood flow. HIE can lead to serious problems, and there are currently no specific drug treatments that improve outcomes. This study aims to see if RLS-0071 is safe and well-tolerated, and to get an early look at how well it might work. Some newborns will receive RLS-0071, while others will receive a placebo (an inactive substance like saline). We are looking for about 70 participants. The study is currently recruiting.

Study design
This is a Phase 2, randomized, double-blind, placebo-controlled study involving multiple sites and ascending doses. Approximately 70 newborns will participate.
What's involved
Participants will receive RLS-0071 or placebo by infusion for 72 hours, in addition to standard care. They will be monitored for safety through Day 14.
Compensation
Not stated in the trial record.
Follow-up
Participants will be observed for long-term safety until they reach 24 months of age.

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NCT05778188

A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Preliminary Efficacy of RLS-0071 in Newborns With Moderate or Severe Hypoxic-Ischemic Encephalopathy Undergoing Therapeutic Hypothermia

Recruiting
PHASE2Up to 10InterventionalTreatment
ReAlta Life Sciences, Inc.
~70 participants
Updated 2026-04-13 on ClinicalTrials.gov
What's tested:RLS-0071Placebo

At a glance

Recruiting sites
14 of 15 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Frequency and severity of adverse events (AEs) and serious adverse events (SAEs) by treatment group at Day 14
Measured over Day 1 to Day 14
+4 more outcomes measured
Hypoxic-Ischemic Encephalopathy
15 sites across 11 states
California3
Florida3
Arkansas1
Indiana1
Kentucky1
Massachusetts1
Missouri1
North Carolina1

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Eligibility criteria

Inclusion

Blood gas drawn within 1 hour of birth, either arterial blood gas (ABG) or venous blood gas (VBG) (cord or infant) with pH ≤ 7.0 OR base deficit ≥ 16 mmol/L.
appearance, pulse, grimace, activity, and respiration (APGAR) score ≤ 5 at 10 minutes OR
The infant required assisted ventilation ≥ 10 minutes after birth (ie, endotracheal, mask ventilation, or continuous positive airway pressure \[CPAP\]). 2. Clinical signs of encephalopathy (either/both):
Moderate/Severe encephalopathy on National Institute of Child Health and Human Development assessment.
Evidence of seizures (clinical and/or electroencephalogram). 4. Be eligible to receive therapeutic hypothermia. 5. Active whole-body cooling to be started prior to 6 hours of age (passive cooling is permitted prior to active whole body cooling). 6. Product of a singleton pregnancy. 7. Written informed consent obtained from parent or legal guardian.
  • Frequency and severity of adverse events (AEs) and serious adverse events (SAEs) by treatment group at Day 14Day 1 to Day 14

    Number of participants with AEs and SAEs graded between Grade 1 (mild in severity) and Grade 5 (death related to AE).

  • Frequency and severity of events of special interest and SAEs by treatment group at 24 monthsDay 1 to 24 months

    Number of participants with events of special interest and SAEs graded between Grade 1 (mild in severity) and Grade 5 (death related to AE). Events of special interest are: autoimmune disorder, persistent hypotension, persistent pulmonary hypertension, acute kidney injury, major venous thrombosis, severe intracranial hemorrhage, pulmonary hemorrhage, culture proven sepsis, necrotizing enterocolitis, severe thrombocytopenia, hepatic dysfunction, hyperbilirubinemia, coagulopathy, hypocalcemia, cerebral palsy, developmental or speech delay, learning disability, and visual or hearing impairment.

  • Frequency of premature discontinuation by treatment group due to AEs at Day 14Day 1 to Day 14

    Number of participants who prematurely discontinue from the study due to AEs

  • Acute brain injury at Day 4, assessed through magnetic resonance imaging (MRI), using a standardized scoring systemDay 4

    Brain injury MRI score includes scoring extent of injury across 4 domains (Grey matter, White matter/cortex, Cerebellum, and Additional). A score of 0 indicates a normal brain MRI, whereas the maximum score of 57 indicates extensive bilateral injury.

  • Acute brain injury at Day 12, assessed through magnetic resonance imaging (MRI), using a standardized scoring systemDay 12

    Brain injury MRI score includes scoring extent of injury across 4 domains (Grey matter, White matter/cortex, Cerebellum, and Additional). A score of 0 indicates a normal brain MRI, whereas the maximum score of 57 indicates extensive bilateral injury.