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Updated May 2026 · ClinicalTrials.gov

RECRUITINGPhase 4INTERVENTIONAL

Butylphthalide for Cognitive Impairment in Elderly Patients With Focal Epilepsy

Safety and Efficacy of Butylphthalide Soft Capsules for Cognitive Impairment Comorbid With Focal Epilepsy in Elderly Patients: A Multicenter, Randomized, Double-Blind, Placebo-Controlled Trial

Butylphthalide for Cognitive Impairment in Elderly Patients With Focal Epilepsy (NCT07193277) is a Phase 4 interventional studying Focal Epilepsy and Cognitive Impairment, sponsored by First Affiliated Hospital of Wenzhou Medical University. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

This is a multicenter, randomized, double-blind, placebo-controlled trial evaluating the safety and efficacy of butylphthalide soft capsules for treating cognitive impairment in elderly patients with focal epilepsy. Study Population: 220 elderly patients (60-85 years) with focal epilepsy and mild to moderate cognitive impairment (Montreal Cognitive Assessment score 18-25). Intervention: Participants will be randomly assigned 1:1 to receive either butylphthalide soft capsules (0.2g three times daily) or matching placebo for 48 weeks, while continuing their stable anti-seizure medication regimen. Primary Outcome: Change in Montreal Cognitive Assessment (MoCA) total score from baseline to 48 weeks. Secondary Outcomes: Changes in neuropsychological tests (Trail Making Test, Digit Span, Rey Auditory Verbal Learning Test), seizure control measures, functional status (Activities of Daily Living, Quality of Life in Epilepsy), and exploratory neurobiological markers. This study addresses an important unmet medical need, as current epilepsy treatments focus primarily on seizure control but lack effective interventions for epilepsy-associated cognitive impairment. Butylphthalide, a neuroprotective agent approved for acute ischemic stroke in China, has shown promise in other cognitive disorders and may benefit this patient population through its multiple neuroprotective mechanisms.

What Stage of Research Is This?

Phase 4 studies happen after a treatment has been approved by the FDA. They monitor long-term safety, real-world effectiveness, and any rare side effects that only emerge in larger populations over longer periods. Phase 4 results sometimes lead to label changes, additional warnings, or — rarely — withdrawal of approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

Target enrollment of 220 participants puts this in the typical range for a Phase 2-style efficacy study or a moderate Phase 3 trial in a focused Focal Epilepsy subpopulation. At this scale, the study has enough statistical power to detect a clear treatment effect but is not the largest cohort in the field.

Who May Be Eligible (Plain English)

Who May Qualify: - Age 60-85 years (inclusive) - Diagnosed with focal epilepsy according to ILAE 2025 latest classification standards, with disease duration ≥2 years - Currently receiving stable anti-seizure medication (ASM) treatment for ≥3 months, with good seizure control (monthly seizure frequency ≤4 times in the past 3 months) - Cognitive impairment: Montreal Cognitive Assessment (MoCA) score 18-25 points (inclusive) - Basic Chinese language comprehension and expression ability, able to cooperate with neuropsychological testing - Voluntary participation and signed willing to sign a consent form Who Should NOT Join This Trial: - Diagnosed with various types of dementia (including Alzheimer's disease, vascular dementia, etc.) - Clear history of stroke with corresponding lesions on neuroimaging, or severe white matter lesions on brain MRI - Other neurological diseases that may cause cognitive impairment (traumatic brain injury, encephalitis, hydrocephalus, etc.) - Systemic diseases that may cause cognitive impairment (severe cardiac, hepatic, renal dysfunction, endocrine diseases, etc.) - Current severe depression or other psychiatric diseases affecting cognitive assessment - History of alcohol dependence, drug abuse, or other substance use affecting cognitive function - Allergy to butylphthalide or its excipients - Participation in other drug clinical trials within 30 days - Other conditions deemed inappropriate for participation by investigators Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
Inclusion Criteria: * Age 60-85 years (inclusive) * Diagnosed with focal epilepsy according to ILAE 2025 latest classification standards, with disease duration ≥2 years * Currently receiving stable anti-seizure medication (ASM) treatment for ≥3 months, with good seizure control (monthly seizure frequency ≤4 times in the past 3 months) * Cognitive impairment: Montreal Cognitive Assessment (MoCA) score 18-25 points (inclusive) * Basic Chinese language comprehension and expression ability, able to cooperate with neuropsychological testing * Voluntary participation and signed informed consent Exclusion Criteria: * Diagnosed with various types of dementia (including Alzheimer's disease, vascular dementia, etc.) * Clear history of stroke with corresponding lesions on neuroimaging, or severe white matter lesions on brain MRI * Other neurological diseases that may cause cognitive impairment (traumatic brain injury, encephalitis, hydrocephalus, etc.) * Systemic diseases that may cause cognitive impairment (severe cardiac, hepatic, renal dysfunction, endocrine diseases, etc.) * Current severe depression or other psychiatric diseases affecting cognitive assessment * History of alcohol dependence, drug abuse, or other substance use affecting cognitive function * Allergy to butylphthalide or its excipients * Participation in other drug clinical trials within 30 days * Other conditions deemed inappropriate for participation by investigators

Treatments Being Tested

DRUG

Butylphthalide

Butylphthalide soft capsules (0.1g per capsule) manufactured by CSPC NBP Pharmaceutical Co., Ltd. Participants take 2 capsules (0.2g total) orally three times daily, 15-30 minutes before meals, for 48 weeks. This represents off-label use for cognitive impairment comorbid with epilepsy, as the drug is currently approved in China only for acute ischemic stroke treatment.

DRUG

Placebo

Matching placebo capsules identical in appearance, weight, and odor to butylphthalide soft capsules, manufactured by the same company following GMP standards. Participants take 2 capsules orally three times daily, 15-30 minutes before meals, for 48 weeks. Placebo contains starch and appropriate excipients.

Locations (1)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

First Affiliated Hospital of Wenzhou Medical University
Wenzhou, Zhejiang, China

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT07193277), the sponsor (First Affiliated Hospital of Wenzhou Medical University), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT07193277 clinical trial studying?

This is a multicenter, randomized, double-blind, placebo-controlled trial evaluating the safety and efficacy of butylphthalide soft capsules for treating cognitive impairment in elderly patients with focal epilepsy. Study Population: 220 elderly patients (60-85 years) with focal epilepsy and mild to moderate cognitive impairment (Montreal Cognitive Assessment score 18-25). Intervention: Participants will be randomly assigned 1:1 to receive either butylphthalide soft capsules (0.2g three times daily) or matching placebo for 48 weeks, while continuing their stable anti-seizure medication regim… The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT07193277?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT07193277?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT07193277. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT07193277. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.