Phase 3 Clinical Trial of Wujia Yizhi Granules in the Treatment of Mild-to-moderate Alzheimer's Dementia (Syndrome of Deficiency of Spleen and Kidney)

A 12-month Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel Group, Phase 3 Clinical Trial of Wujia Yizhi Granules in the Treatment of Mild-to-moderate Alzheimer's Dementia (Syndrome of Deficiency of Spleen and Kidney).

This study is a randomized, double-blind, placebo-controlled phase 3 design aimed at further verifying the safety and efficacy of Wujia Yizhi granules for mild-to-moderate Alzheimer's dementia

Study Overview

• Status: Recruiting
• Conditions: Alzheimer's Dementia
• Intervention / Treatment: Drug: Placebo; Drug: Wujia Yizhi granules

Detailed Description

This is a multi-center, randomized, double-blind, placebo-controlled phase 3 clinical trial targeting patients with mild-to-moderate Alzheimer's dementia (TCM differentiated as syndrome of deficiency of spleen and kidney). 570 subjects were recruited and randomly assigned to the experimental and placebo groups at a ratio of 2:1.

• Study Type: Interventional
• Enrollment (Estimated): 570
• Phase: Phase 3

Contacts and Locations

• Study Contact: Name: Lin song; Phone Number: 028-81258178; Email: 022516@cnkh.com

Study Locations

• China
  • Fujian
    • Fuzhou, Fujian, China, 350000
      • Recruiting
      • Fujian Medical University Affiliated Union Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Male or female, age range : 50 - 80 years old.
2. Informed consent signed and dated by patient or legal representative.
3. The participants are mild-to-moderate AD patients who meet the diagnostic criteria for AD proposed by the National Institute on Aging and the Alzheimer's Association (NIA-AA) in 2018 and have a disease course of more than 6 months. If participants lack previous pathological evidence or biomarkers of Alzheimer's dementia, they must have evidence of β-amyloid deposition biomarkers during screening (PET with abnormal amyloid deposition or low cerebrospinal fluid Aβ 42 and Aβ 42/Aβ 40 ratio).
4. MMSE score 11 to 26;CDR-GS score 1 to 2 。

Exclusion Criteria:

1. Participants with non AD induced memory and cognitive impairment, such as diagnosis of other types of dementia, including but not limited to mixed dementia (AD VaD), vascular dementia (VD), Parkinson's disease dementia (PDD), Lewy body dementia (DLB), Huntington's disease related dementia, frontotemporal lobe dementia (FTD), etc; Endocrine system disorders (such as thyroid diseases, parathyroid diseases) and dementia caused by folate, vitamin B12 deficiency, or any other reason; Existence of consciousness disorders, etc.
2. Participants have a history of epileptic seizures.
3. Participants are psychiatric patients, including but not limited to schizophrenia, affective schizophrenic disorder, bipolar disorder, or delirium.
4. HAMD-17 score ≥ 17 points.
5. HAMA score ≥ 14 points.
6. Participants were taking antidepressants, anxieties, and antipsychotic drugs during screening.
7. HIS score ≥ 4 points..

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Quadruple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Wujia Yizhi Granules; Participants received Wujia Yizhi Granules 6g ,BID,once in the morning and once in the evening, at an interval of more than 8 hours, for up tp 12 months.	Drug: Wujia Yizhi granules; Drug: Wujia Yizhi granuless
Placebo Comparator: Placebo; Participants received Wujia Yizhi granules simulator 6g ,BID,once in the morning and once in the evening, at an interval of more than 8 hours, for up tp 12 months.	Drug: Placebo; Placebo

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change from baseline to endpoint in Alzheimer's dementia Assessment Scale-Cognitive subscore (ADAS-Cog12).	The Alzheimer's Disease Assessment Scale - Cognitive Scale (ADAS-Cog12) is used to assess the cognitive function level of AD subjects. The ADAS-Cog12 score range is 0-75 points, and the higher the score on the scale, the more severe the cognitive impairment.	Change from Baseline to Month 12
Change from baseline to endpoint in Clinical Dementia Rating-Sum of Boxes (CDR-SB).	The Alzheimer's Disease Assessment Scale - Cognitive Scale (CDR-SB) is used to assess the cognitive function level of AD subjects. The CDR-SB score range is 0-3 points, and the higher the score on the scale, the more severe the cognitive impairment.	Change from Baseline to Month 12

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change from baseline to endpoint in ADAS-Cog12.	The Alzheimer's Disease Assessment Scale - Cognitive Scale (ADAS-Cog12) is used to assess the cognitive function level of AD subjects. The ADAS-Cog12 score range is 0-75 points, and the higher the score on the scale, the more severe the cognitive impairment.	Change from Baseline to month 3, 6, and 9
Change from baseline to endpoint in CDR-SB.	The Alzheimer's Disease Assessment Scale - Cognitive Scale (CDR-SB) is used to assess the cognitive function level of AD subjects. The CDR-SB score range is 0-3 points, and the higher the score on the scale, the more severe the cognitive impairment.	Change from Baseline to month 3, 6, and 9
Change from baseline to endpoint in he Alzheimer's dementia Cooperative Study-Activities of Daily Living (ADCS-ADL) scale.	The Alzheimer's Disease Collaborative Study Group - Activities of Daily Living Scale (ADCS-ADL) is used to evaluate the daily living abilities of AD subjects. The score range of ADCS-ADL is from 0 to 78, with higher numbers indicating better daily functioning.	Change from Baseline to month 3, 6, 9 and 12
Change from baseline to endpoint in Mini-Mental State Examination (MMSE).	The Simple Intelligent State Examination Scale (MMSE) has a total of 19 items, with scores ranging from 0 to 30. In clinical practice, the diagnostic threshold is usually adjusted based on educational level, with university ≤ 26 points, middle school ≤ 24 points, primary school ≤ 23 points, and illiteracy ≤ 22 points, indicating dementia.	Change from Baseline to month 3, 6, 9 and 12
Change from baseline to endpoint in Neuropsychiatric Inventory (NPI).	The Neuropsychiatric Inventory (NPI) includes a total of 12 items in 10 behavioral domains and 2 autonomic nervous system domains, with a score range of 0-144. The caregiver distress rating is 0-60, where 0 represents the best, and the higher the score, the higher the level of distress.	Change from Baseline to month 3, 6, 9 and 12
Change from baseline to endpoint in Traditional Chinese Medicine Syndrome Score	TCM syndrome scale was used to evaluate the changes of TCM symptoms and signs before and after treatment.	Change from Baseline to month 3, 6, 9 and 12

Collaborators and Investigators

• Sponsor: Sichuan Jishengtang Pharmaceutical Co., Ltd.
• Investigators: Principal Investigator: Xiaochun Chen, Medical Doctor, Fujian Medical University Affiliated Union Hospital

Study record dates

Study Major Dates

• Study Start (Actual): August 20, 2024
• Primary Completion (Estimated): August 31, 2026
• Study Completion (Estimated): December 1, 2026

Study Registration Dates

• First Submitted: July 3, 2024
• First Submitted That Met QC Criteria: August 1, 2024
• First Posted (Actual): August 2, 2024

Study Record Updates

• Last Update Posted (Actual): December 29, 2025
• Last Update Submitted That Met QC Criteria: December 25, 2025
• Last Verified: December 1, 2025

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Mental Disorders; Neurocognitive Disorders; Dementia; Tauopathies; Neurodegenerative Diseases; Alzheimer Disease
• Other Study ID Numbers: KH110-60101

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No