Oxiracetam Research
14 peer-reviewed studies · Evidence score: 7/10
Oxiracetam for Cognitive Impairment After Stroke: A Meta-Analysis of Randomized Controlled Trials
Chen X, Wang L, Deng Y, Li X, He Q • Neurological Sciences (2021)
Oxiracetam demonstrated significant cognitive benefits in post-stroke patients with improved MMSE and ADL scores.
- Statistically significant improvement in cognitive function post-stroke
- Improved activities of daily living compared to standard care
- Low incidence of adverse effects across pooled trials
The treatment of cognitive dysfunction in dementia: a multiple treatments meta-analysis
Perng CH et al. • Psychopharmacology (2018)
The most effective intervention for dementia available is symptomatic treatment for vascular dementia.
- The pooled standardized mean difference of the treatment effects on cognitive dysfunction was 0.439 (95% confidence interval 0.374, 0.504).
- The most effective intervention for dementia available is symptomatic treatment for vascular dementia.
- Antipsychotic treatment for dementia alleviates cognitive dysfunction less effectively than does symptomatic treatment.
Efficacy of Oxiracetam in the Treatment of Vascular Dementia: A Systematic Review and Meta-Analysis
Wang X, Zhao J, Zhang Y, Liu C • CNS Neuroscience & Therapeutics (2020)
Oxiracetam combined with conventional therapy significantly improved cognitive function scores in vascular dementia patients.
- Significant improvement in MMSE scores compared to conventional therapy alone
- Enhanced activities of daily living scores
- Favorable safety profile with no increase in adverse events
Co-administration of Nanowired Oxiracetam and Neprilysin with Monoclonal Antibodies to Amyloid Beta Peptide and p-Tau Thwarted Exacerbation of Brain Pathology in Concussive Head Injury at Hot Environment
Nozari A et al. • Advances in neurobiology (2023)
The Author(s), under exclusive license to Springer Nature Switzerland AG.
- In this review, effect of hot environment on CHI-induced brain pathology is discussed.
- In addition, whether nanodelivery of oxiracetam together with neprilysin and monoclonal antibodies (mAb) to amyloid beta peptide and p-tau could lead to superior neuroprotection in CHI is explored.
- Our results show that co-administration of oxiracetam with neprilysin and mAb to AβP and p-tau significantly induced superior neuroprotection following CHI in hot environment, not reported earlier.© 2023.
A Meta-Analysis of Au/Polypropionic Acid Nanoparticles Loaded with Olacetam for the Treatment of Vascular Cognitive Impairment
Yi Z et al. • Journal of nanoscience and nanotechnology (2020)
Based on the current clinical evidence, olacetam is more effective and safer than alternatives in the treatment of vascular cognitive dysfunction.
- The results of the meta-analysis showed that compared with placebo and other medications, oxiracetam significantly improved the mental status of patients, Concise Mental State Checklist score [mean difference (MD)= 5.29, P < 0.01] and Montreal Cognitive Assessment score (MD = 4.32, P < 0.01).
- The Barthel Index demonstrated that oxiracetam significantly improved the quality of the daily life of patients (MD = 18, P < 0.01), but there was no difference between olacetam and placebo or other medications in the rating of activities of daily living (ADLs).
- The total effective rate of olacetam was significantly higher than that of other treatments (P < 0.01).
Oxiracetam and physical activity in preventing cognitive decline after stroke: A multicenter, randomized controlled trial
Lim JS et al. • European stroke journal (2026)
Oxiracetam did not demonstrate benefit in preventing PSCI in high-risk patients.
- Oxiracetam did not demonstrate benefit in preventing PSCI in high-risk patients.
- These findings support the recent regulatory decision to suspend its use in South Korea.
- Further research warranted to confirm findings
Efficacy and safety of oxiracetam in patients with vascular cognitive impairment: A multicenter, randomized, double-blinded, placebo-controlled, phase IV clinical trial
Lim JS et al. • Contemporary clinical trials (2023)
This trial is meaningful not only to prove the efficacy of oxiracetam, but also evaluate whether exercise can modify the effects of medication and how cognitive function can be restored.
- This trial is meaningful not only to prove the efficacy of oxiracetam, but also evaluate whether exercise can modify the effects of medication and how cognitive function can be restored.
- Trial registrationhttp://cris.nih.go.kr (KCT0005137).
- Further research warranted to confirm findings
Piracetam and piracetam-like drugs: from basic science to novel clinical applications to CNS disorders
Malykh AG et al. • Drugs (2010)
Based on calculations of the efficacy rates, our assessments indicate notable improvements in clinical outcomes with some of these agents.
- Differential effects on subtypes of glutamate receptors, but not the GABAergic actions, have been implicated.
- Piracetam seems to activate calcium influx into neuronal cells; however, this function is questionable in the light of findings that a persistent calcium inflow may have deleterious impact on neuronal cells.
- Although subgroup 2 compounds act via binding to another neuronal receptor (synaptic vesicle 2A), some of the subgroup 3 compounds, such as nefiracetam, are similar to those of subgroup 1.
Efficacy and safety of L-oxiracetam on cognitive function in patients with traumatic brain injury: a multicentre, randomised, double-blind, phase 3 clinical trial
Liu T et al. • Signal transduction and targeted therapy (2025)
This rct examined the effects of Oxiracetam.
- The LS mean difference of the L-oxiracetam was significantly higher than the placebo group (8.97, 95% CI 5.69,12.26; P < 0.001; Cohen's d = 0.48 [95% CI: 0.26,0.69]) and the oxiracetam group (4.54, 95% CI 1.85,7.23).
- No significant safety concerns were reported.
- Despite limitations such as loss to follow-up, the findings of this study provide important evidence for the clinical management of cognitive dysfunction following TBI.
Safety, tolerability, and pharmacokinetics of oral (S)-oxiracetam in Chinese healthy volunteers: A randomized, double-blind, controlled phase I study
Zhang T et al. • European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences (2024)
(S)-oxiracetam was safe and tolerated with favorable pharmacokinetic profiles at all study doses, providing dosing evidence for further efficacy evaluation.
- In the SAD study, no chiral transformation was observed. 55.03% and 36.16% of (S)-oxiracetam was excreted unchanged in urine and feces, respectively.
- (S)-oxiracetam was safe and tolerated with favorable pharmacokinetic profiles at all study doses, providing dosing evidence for further efficacy evaluation.
- Further research warranted to confirm findings
[Effect of early acupuncture on cognitive function in patients with vascular dementia after cerebral infarction]
Han H et al. • Zhongguo zhen jiu = Chinese acupuncture & moxibustion (2021)
Early acupuncture could improve cognitive function and activities of daily living in patients with VD after cerebral infarction, its mechanism may be related to improving the blood flow velocity of MCA, promoting blood circulation, and improving cerebral perfusion.
- The total effective rate was 89.8% (53/59) in the acupuncture combined with medication group, which was superior to 76.3% (45/59) in the western medication group (P<0.01).
- Early acupuncture could improve cognitive function and activities of daily living in patients with VD after cerebral infarction, its mechanism may be related to improving the blood flow velocity of MCA, promoting blood circulation, and improving cerebral perfusion.
- Further research warranted to confirm findings
Clinical efficacy and safety of nicergoline combined with oxiracetam in the treatment of vascular cognitive impairment
Wang B et al. • Pakistan journal of pharmaceutical sciences (2020)
The clinical effect is definite.
- The combined group had the highest effective rate and the total effective rate was 93.3%.
- The combined use of nicergoline and oxiracetam can significantly improve the severity of symptoms and quality of life in patients with vascular cognitive impairment after stroke.
- Conclusion: Nicergoline and oxiracetam are effective drugs in the treatment of vascular cognitive impairment (VCI).
[Randomized clinical trials of early acupuncture treatment of limb paralysis in traumatic brain injury patients and its mechanism]
Guo ZQ et al. • Zhen ci yan jiu = Acupuncture research (2019)
Early acupuncture treatment can significantly improve the TBI patient's limb motor function and daily life activities, which may be related with its effects in reducing the inflammation and increasing BDNF and NGF levels.
- After the treatment, the GCS score on day 28, FMA and ADL-BI scores on day 28 and 60 were significantly increased in both medication and acupuncture plus medication groups in comparison with their own pre-treatment (P<0.05).
- The focal volume values of the injured brain were significantly decreased on day 14 and 28 in both groups compared with their own pre-treatment (P<0.05).
- Compared with pre-treatment, the levels of plasma IL-6 on day 3, 7 and 14 were significant decreased, and those of plasma BDNF and NGF on day 3, 7 and 14 considerably increased in both groups in comparison with their own pre-treatment (P<0.05).
Oxiracetam in cognitive impairment
Bottini G et al. • Dementia (1992)
Oxiracetam improved attention and memory in patients with cognitive impairment.
- Improved attention
- Enhanced memory
- Good tolerability