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Clinical Trial Summary

Alzheimer's disease is characterised by memory loss and difficulties with thinking. These problems may be due to a deficiency in a brain chemical called acetylcholine. Acetylcholine helps transmit messages between nerve cells. Acetylcholine is degraded by an enzyme called "acetylcholinesterase". ZT-1 is a new drug derived from a plant extract already used in China for memory disorders, which blocks the action of the enzyme and restores adequate levels of acetylcholine.

This study will test the safety and efficacy of ZT-1 in the treatment of patients with Alzheimer's disease.

BRAINz stands for Better Recollection for Alzheimer's patients with the Implant of ZT-1.


Clinical Trial Description

This is a multicenter, randomised, double-blind, double-dummy, oral donepezil controlled study on the safety and efficacy of repeated monthly s.c. injections of a sustained-release implant of ZT 1 in patients with moderate Alzheimer's Disease.

The study enrolls patients aged >50 years, with moderate AD with a MMSE score at study screening ≥14 and ≤22. The study aims to recruit 128 patients.

The study is divided into 3 periods:

1. A screening period

2. A 6-month treatment period, consisting of one month of titration with an oral medication and 5 months of treatment with an implant administered under the skin every 4 weeks. Oral treatment will be maintained throughout the treatment phase

3. A 2 week follow-up period.

Patients will be randomized in a 1:1 ratio to one of 2 groups: the ZT-1 (investigational product) treatment group or the donepezil (active comparator) treatment group.

The study comprises a total of 11 visits including screening and follow-up. An additional visit for PK/PD assessment is scheduled in about 10% of patients. ;


Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT00423228
Study type Interventional
Source Debiopharm International SA
Contact
Status Completed
Phase N/A
Start date February 2007
Completion date April 2009

See also
  Status Clinical Trial Phase
Withdrawn NCT03959553 - GV1001 Subcutaneous(SC) for the Treatment of Moderate Alzheimer's Disease (AD) Phase 2