L-Oxiracetam injection for improving memory after brain injury

A Randomized, Double-blind, Positive Drug/Placebo Parallel Controlled, Multicenter, Phase III Clinical Trial of L-oxiracetam Injection to Improve Memory and Cognitive Impairment in Patients With Craniocerebral Injury

Phase 3 Interventional Nanjing Yoko Biomedical Co., Ltd. · NCT04205565

This study tests if an injection of L-oxiracetam can help improve memory and thinking skills in people who have had mild to moderate brain injuries.

Quick facts

PhasePhase 3
Study typeInterventional
Enrollment591 (estimated)
Ages18 Years to 75 Years
SexAll
SponsorNanjing Yoko Biomedical Co., Ltd. Industry-sponsored
Locations1 site (Tianjing, Tianjing)
Trial IDNCT04205565 on ClinicalTrials.gov

What this trial studies

This phase III clinical trial evaluates the effectiveness of L-oxiracetam injection in enhancing memory and cognitive function in patients who have suffered craniocerebral injuries. The study employs a randomized, double-blind, placebo-controlled design, with participants receiving either the L-oxiracetam injection, a control oxiracetam injection, or a placebo. The trial aims to assess cognitive improvements within 72 hours post-injury in patients with mild to moderate brain injuries confirmed by MRI or CT scans.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18-75 who have sustained mild to moderate craniocerebral injuries and exhibit cognitive impairment.

Not a fit: Patients with known allergies to the study drug or those with severe cognitive impairment may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly improve cognitive recovery in patients with craniocerebral injuries.

How similar studies have performed: Previous studies on cognitive enhancers in brain injury have shown promise, but the specific use of L-oxiracetam in this context is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age 18-75 years old (including upper and lower limits), male or female
2. Craniocerebral injury meets all of the following conditions: This diagnosis has a clear head trauma, closed head injury, or head injury with cerebrospinal fluid ear leak and / or nasal leak and / or intracranial gas accumulation; MRI or CT confirmed intracranial hemorrhage above the cerebellum (including cerebral contusion, subarachnoid hemorrhage, epidural hematoma, subdural hemorrhage, intracranial hematoma, etc.), with or without transient coma; Craniocerebral injury is classified as mild or moderate (GCS score 10-15 points); Conservative treatment.
3. Within 72 hours after head injury, patients with stable and mentally handicapped mental state examination (MMSE) scores are lower than normal.
4. The legal representative and / or patient agree to participate in this clinical trial and sign an informed consent form.

Exclusion Criteria:

1. People who are known or suspected to be allergic to the test drug and its ingredients.
2. After the injury, drugs that improve cognitive function such as the prohibited drugs listed in the protocol have been used.
3. With a history of severe traumatic brain injury, a history of cerebrovascular accidents, and structural craniocerebral lesions.
4. With diseases such as speech and hearing impairment that cannot cooperate with the completion of cognitive function assessment.
5. A secondary brain injury occurred after the craniocerebral injury.
6. Those who need craniotomy or extraventricular drainage.
7. Combining with other serious large organ damage or serious complications may affect the test Life.
8. Patients with active epilepsy who had seizures within 1 year.
9. Patients with severe liver and kidney disease.
10. Complicated with severe heart disease, lung disease, blood and hematopoietic diseases, gastrointestinal disease, serious or progressive disease.
11. Past or present with a malignant tumor
12. Combining neurological and mental disorders that make it impossible or unwilling to cooperate.
13. Women who are pregnant, breastfeeding or have a recent birth plan.
14. Researchers do not consider it appropriate to participate in the clinical trial.
15. Those who have participated in other clinical trials and used test drugs 3 months before the trial.

Where this trial is running

Tianjing, Tianjing

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Craniocerebral InjuryL-oxiracetamCognitive Impairment
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.