Efficacy and Safety of Qinggongshoutao Bolus in aMnestic Mild Cognitive Impairment

Dongzhimen Hospital, Beijing

Status and phase: Completed; Phase 4

Conditions: Herbal Medicine Allergy; Mild Cognitive Impairment

Treatments: Drug: Ginkgo Biloba Extract 761; Drug: Qinggongshoutao Bolus; Drug: Placebos

Study type: Interventional

Funder types: Other

Identifiers

NCT02982603

Z12020286

Details and patient eligibility

About

This study is a 52-weeks, multicenter, randomized, double-blind, double- placebo, parallel controlled phase VI trial being carried out in 20 centers around China. The study population includes amnestic mild cognitive impairment patients (planned a total of 360) aged 55-85 in both gender. Participants will be randomly allocated to Qinggongshoutao bolus (7g per time,2 times per day) and placebo identified to Ginkgo biloba (Ginaton), Ginkgo biloba (Ginaton) (80mg per time, 2 times per day) and placebo identified to Qinggongshoutao bolus, or placebo identified to Qinggongshoutao bolus and placebo identified to Ginkgo biloba (Ginaton) for a 52-weeks double-blind treatment period. The primary outcome measure is change from baseline in the Alzheimer's Disease Assessment Scale- Cognition Subscale (ADAS-cog) and rate of conversion to dementia. The secondary outcomes are changes from baseline in the Mini-Mental State Examination(MMSE), Delayed Story Recall(DSR), Alzheimer's Disease Cooperative Study/Activities of Daily Living scale adapted for MCI patients (ADCS/MCI/ADL24). Safety is being assessed by observing side effects and adverse reaction during the entire treatment period. Statistical analysis will be conducted according to per-protocol population and intend-to-treat population and the safety will be analyzed in safety set.

Enrollment: 350 patients

Sex: All

Ages: 55 to 85 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. cognitive complaints from the patients or their families;
2. objective evidence for memory impairment, delayed story recall test(DSR)<12.6(age50-64 less than15.5,65-74less than 12.5,older 75 less than10);
3. normal general cognitive function, with Mini-Mental State Examination (MMSE) score of between 24 and 30 (including 30);
4. preservation of activities of daily living, with Alzheimer's Disease Cooperative Study/Activities of Daily Living scale adapted for MCI patients (ADCS/MCI/ADL24) score between 38 and 52;
5. cognitive disorders as evidenced by clinical evaluation, with clinical dementia rating scale=0.5,memory domain = 0.5;
6. absence of dementia, not sufficiently impaired cognitively and functionally to meet DSM-IV criteria,
7. enough vision and hearing to accomplishment neuropsychological test;
8. capability to read words and write simple sentence;
9. capability and willingness to give informed consent and to comply with the study procedures.

Exclusion criteria

1. non amnestic Mild cognitive impairment;
2. meeting the diagnostic criteria for dementia;
3. cognitive impairment resulting from conditions such as acute cerebral trauma, cerebral damage due to a lack of oxygen, epilepsy vitamin deficiency, infections such as meningitis or AIDS, significant endocrine or metabolic disease, mental retardation, or a brain tumor ,or drug abuse or alcohol abuse
4. having significant psychiatric disease, depression, the Hamilton depression scale >12; CT or MRI scan showed central nervous system infections Infarction or focal lesions within 12 months，the Hachinski Ischemic Scale (HIS)>4;
5. combined following disease: diabetes; poor controlled hypertension or severe arrhythmias; or suffered from heart infarction within 3 months; severe asthma or COPD; severe indigestion; gastrointestinal tract obstruction; gastroduodenal ulcer;
6. used cholinesterase inhibitors or memantine within 1 month;
7. history of hypersensitivity to the treatment drugs;
8. concomitant drugs with the potential to interfere with cognition;
9. administration of other investigational drugs; severe impairment of the functions of the kidney or liver;
10. vegetarians or contraindications for animal innards.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Quadruple Blind

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350 participants in 3 patient groups, including a placebo group

Qinggongshoutao Bolus

Experimental group

Description:

Qinggongshoutao bolus and placebo identified to Ginkgo Biloba Extract 761 .Qinggongshoutao bolus 70 pills every time (7g), 2 times per day and placebo identified to Ginkgo Biloba Extract 761, 2 pills per time, 2 times per day for 48 weeks.

Treatment:

Drug: Qinggongshoutao Bolus

Ginkgo Biloba Extract 761

Active Comparator group

Description:

Ginkgo Biloba Extract 761 and placebo identified to Qinggongshoutao bolus.The subjects will take Ginkgo Biloba Extract 761 2 times per day, 2 pills per time(80mg) ,and identified to Qinggongshoutao bolus 70 pills every time, 2 times per day for 48 weeks.

Treatment:

Drug: Ginkgo Biloba Extract 761

Placebos

Placebo Comparator group

Description:

Placebo identified to Qinggongshoutao bolus and placebo identified to Ginkgo Biloba Extract 761.Placebo identified to Qinggongshoutao bolus 70 pills every time, 2 times per day and placebo identified to Ginkgo Biloba Extract 761, 2 pills per time, 2 times per day for 48 weeks.

Treatment:

Drug: Placebos