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UnknownPhase NA

The Efficacy of DL-NBP in Patients With Mild Subcortical Ischemic Vascular Dementia

The Efficacy of DL-3-n-butylphthalide (DL-NBP) on the Cognitive Function and Vascular Regulation in Patients With Mild Vascular Dementia (VaD) Caused by Subcortical Ischemic Vascular Disease (SIVD)

Asset

Butylphthalide

Listed sites

1

Recruiting sites

1

Enrollment

64

estimated

Study population

Vascular cognitive impairment / dementia

Key I/E criteria

MMSE 15MoCA ≤26Study partner/caregiver required

Primary endpoints

Auditory Verbal Learning Test (AVLT) at endpoint and changeBrief Visuospatial Memory Test-Revised (BVMT-R) at endpoint and changeDigital span (DS) at endpoint and change

Footprint

Where this trial recruits

Site locations as reported to ClinicalTrials.gov. Site count is not enrollment count; per-site enrollment is not available from source.

Identifiers

Registered as

NCT IDNCT03906123
Org study IDTianjinMUGH001

Timeline

Milestones

Study start2017-11-18actual
Study first posted2019-04-08actual
Last update posted2019-04-08actual
Primary completion2019-12-31estimated
Study completion2020-01-31estimated

Assets

Drug assets

Study populations

Who this study enrolls

Vascular cognitive impairment / dementia

Eligibility

Who can enroll

Minimum age50 Years
Maximum age85 Years
SexAll
Healthy volunteersNot accepted

Inclusion criteria

1. Patients meet the criteria of major neurocognitive disorder in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5);

2. Patients aged with 50-80 years, years of education no less than 3, an MMSE range of 15~26, an MoCA < 26, an Hamilton Depression Scale (HAMD) < 17;

3. The MRI (one research dedicated machine 3.0 T) features satisfy subcortical small vessel disease, including (1) multiple (>=3) supratentorial subcortical lacunes (3-20 mm in diameter), with/without white matter hyperintensities (WMH) of any degree; (2) moderate to severe WMH (score>= 2 according to the Fazekas rating scale in either periventricular region or deep white matter) with/without lacunes; (3) one or more strategically located subcortical small infarcts in the deep grey matters;

4. Patients or legal representative should sign the informed consent and have a reliable caregiver

Exclusion criteria

1. Cognitive impairment caused by other central nervous system diseases, such as AD, dementia with Lewy body, frontal-temporal lobe degeneration, etc;

2. Cognitive impairment due to other conditions, such as severe depression, vitamin B 12 deficiency, abnormal thyroid function, etc;

3. Alcoholism, drug abuse or other conditions influenced the evaluation of cognition;

4. Patients unable to undertake MRI assessment.

5. Patients with a history of other severe disease such as epilepsy, myocardial infarction or heart failure will be excluded;

6. Administration of other investigational drugs, psychotropic drugs, drugs with psychiatric side effects, and oral anticoagulants are not allowed

Endpoints (23)

What's being measured

Protocol endpoints and posted registry outcome measures, grouped into outcome categories. Composite endpoints show their component event types. Standard codes (LOINC, SNOMED CT) are shown where available.

Coverage by outcome category

Executive function / language
8
Neuroimaging
4
Global cognition
3
Behavior / neuropsychiatric
3
Memory
2
Other (unclassified)
2
Function / daily living
1

Global cognition

3 endpoints
Primary/protocol endpoint

Mini-Mental State Examination (MMSE) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

Mini-Mental State Examination (MMSE)

change from baseline, improvement

Primary/protocol endpoint

Montreal Cognitive Assessment (MoCA) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

Montreal Cognitive Assessment (MoCA)

change from baseline, improvement

Secondary/protocol endpoint

Global function at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Memory

2 endpoints
Primary/protocol endpoint

Auditory Verbal Learning Test (AVLT) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Primary/protocol endpoint

Brief Visuospatial Memory Test-Revised (BVMT-R) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Executive function / language

8 endpoints
Primary/protocol endpoint

Digital span (DS) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Primary/protocol endpoint

Symbol Digit Modalities Test (SDMT) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Primary/protocol endpoint

Trail Making Test-A (TMT-A) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Primary/protocol endpoint

TMT-B at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Primary/protocol endpoint

Stroop test at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Primary/protocol endpoint

Verbal fluency test at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Primary/protocol endpoint

Boston Naming Test (BNT) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Primary/protocol endpoint

Controlled Oral Word Association Test (COWAT) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Function / daily living

1 endpoint
Primary/protocol endpoint

Activity of daily living (ADL) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Behavior / neuropsychiatric

3 endpoints
Secondary/protocol endpoint

Neuropsychiatric Inventory (NPI) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

Neuropsychiatric Inventory (NPI)

change from baseline, improvement

Other/protocol endpoint

Hamilton Depression Scale (HAMD) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Other/protocol endpoint

Geriatric Depression Scale (GDS) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Neuroimaging

4 endpoints
Other/protocol endpoint

Transcranial Doppler (TCD) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Other/protocol endpoint

Carotid duplex ultrasonic (CDU) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Other/protocol endpoint

Arterial spin labeling (ASL) MRI at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Other/protocol endpoint

White matter hyperintensities (WMH) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Other (unclassified)

2 endpoints
Primary/protocol endpoint/low confidence

Benton Judgment of Line Orientation (JLO) at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Other/protocol endpoint/low confidence

Regulation of endothelial progenitor cell at endpoint and change from baseline

Time frame:48 weeks post-dose and change from baseline

change from baseline, improvement

Provenance

Sources

Trial identity, design, statusClinicalTrials.gov API v2
Snapshot dateJuly 21, 2026
Endpoint classificationDelfa ADRD endpoint taxonomy
Results tableno registry results posted yet

Trial facts come from public ClinicalTrials.gov records. Endpoint categories are Delfa's classification of those records, not a ClinicalTrials.gov field. All figures reflect the July 21, 2026 snapshot.