Efficacy and Safety of Tian Ma Bian Chun Zhi Gan Tablets in Mild to Moderate Vascular Dementia (NCT05371639) | Clinical Trial Compass
UnknownPhase 2
Efficacy and Safety of Tian Ma Bian Chun Zhi Gan Tablets in Mild to Moderate Vascular Dementia
China360 participantsStarted 2022-05-25
Plain-language summary
The study will be a 36-week multicentre, double-blind, placebo-controlled phase â…¡b trial in China. Total 360 participants aged 55-80 years will be randomized to Tian Ma Bian Chun Zhi Gan group (84mg per day) or to placebo group. The primary endpoint will be Vascular Dementia Assessment Scale-cognitive subscale and Clinical Dementia Rating-Sum of Boxes. Secondary outcomes included changes in Mini-Mental State Examination, Clock Drawing Test, Delayed Story Recall and Ability of Daily Living. Patients' safety will be assessed by recording of adverse events, clinical examinations, electrocardiography and laboratory tests. The patients, caregivers, and investigators will be blinded to the treatment allocations.
Who can participate
Age range55 Years – 80 Years
SexALL
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Inclusion criteria
✓. Concerns of a patient, knowledgeable informant or a clinician of decline from a previous level of cognitive functioning.
✓. Clear and significant deficits in objective assessment in two or more cognitive domains, Memory decline, delayed story recall ≤10.5point(maximum is 56 point), or visuoconstructional-perceptual ability, clock drawing test≤3point(maximum is 4 point);or executive function, trail making test-part B≥188.5 second( maximun is 300 second); or language function, boston naming test-30 items ≤21.5 point( maximum is 30);
✓. Global cognitive impairment, mild to moderate dementia with Mini-mental state examination(MMSE) score of ≤26 and ≥11;
✓. Cognitive deficits are severe enough to impair social or occupational functioning, the ability of daily living scale ≥16 points;
✓. Determining evidence of significant cerebrovascular disease, presence of significant neuroimaging (MRI or CT) evidence of cerebrovascular disease (one of the following): a) multiple (≥2) large vessel infarcts ; b) Single lacunes placed strategically in the thalamus or basal ganglia; c) Multiple lacunar infarcts (≥3) outside the brainstem; d) 1-2 lacunes may be sufficient if strategically placed or in combination with extensive white matter lesions; e) extensive and confluent white matter lesions; f) watershed infarction with moderate white matter lesions; g) Strategically placed intracerebral hemorrhage, or two or more intracerebral hemorrhages; h) combination of the above.
. A relationship between dementia and cerebro-vascular disease, manifested or inferred by the presence of one or more of the following: a) abrupt deterioration in cognitive functions, the onset of the cognitive deficits is temporally related to one or more cerebro-vascular events , onset of cognitive deficits within 3 months following a recognized stroke, and cognitive deficits persisting beyond three months after the event, and abrupt with a stepwise or fluctuating course owing to multiple such events; b) gradual onset and slowly progressive course, evidence for decline is prominent in speed of information processing, complex attention and/or frontal-executive functioning in the absence of history of a stroke or transient ischemic attack. One of the following features is additionally present: â‘ Early presence of a gait disturbance; â‘¡Early urinary frequency, urgency, and other urinary symptoms not explained by urologic disease; â‘¢Personality and mood changes: abulia, depression, or emotional incontinence
✓. Aged ≥55 and ≤80 years old in both gender;
✓. Weighing of ≥45kg and ≤90kg;
Exclusion criteria
✕. Have cognitive impairment caused by other types of dementia, mix dementia, Alzheimer's disease(Medial temporal atrophy scale (MTA) score is ≥1.5 (adjusted by age: 65-74 years ≥ 1.5, 75-84 years ≥ 2.0) at baseline MRI screening),frontotemporal dementia, Parkinson's disease dementia, Lewy body dementia, Huntington's disease, etc;
✕. Subdural hematoma, traffic hydrocephalus, brain tumor, thyroid disease,vitamin deficiency or other diseases which can lead to cognitive impediment;
✕. mood disorders, like depression disorder (HAMD≥17) or anxiety disorder (HAMA≥12);
✕. Subject can't complete related test due to severe neurologic deficits, such as hemiplegia, aphasia, audio-visual disorder and so forth;
✕. Severe cardiovascular disease(severe arrhythmia, myocardial infarction within 3 months, New York Heart Association Functional Classification III-IV, systolic pressure≥180mmHg or ≤90mmHg);
✕. Severe liver or kidney dysfunction, alanine aminotransferase or aspartate transaminase is more than 1.5 times the upper limit of normal, or serum creatinine is more than the upper limit of normal;
✕. Uncontrolled diabetes(glycosylated hemoglobin is more than 10%);