ALADDIN Study - Phase III: Antigonadotropin-Leuprolide in Alzheimer's Disease Drug INvestigation (VP-AD-301)

Alzheimer's Disease Clinical Trial

Official title: A Double-Blind Placebo-Controlled Study of VP4896 For the Treatment of Mild-to-Moderate Alzheimer's Disease

Status Completed

Clinical Trial Summary

The study is designed to investigate the activity of the hormone drug leuprolide acetate in stabilizing cognitive function in mild-to-moderate AD patients.

Clinical Trial Description

VP4896 is a gonadotropin releasing hormone (GnRH) agonist that binds to and inactivates GnRH receptors on the pituitary gland. This decreases the amount of luteinizing hormone released by the pituitary. The hypothesis upon which this trial is designed is that luteinizing hormone is the cause of Alzheimer's disease. VP4896 decreases the amount of luteinizing hormone in the body and, therefore, may decrease or halt the progression of Alzheimer's disease.

This is a double-blind, placebo-controlled, study designed to assess the safety and efficacy of VP4896 (a novel formulation of leuprolide acetate) in the treatment of subjects with mild-to-moderate AD. The study duration is 56 weeks. Approximately 555 participants will be recruited from approximately 80 sites in the United States, Canada, and South America.

The study drug will be administered every eight weeks over a 48 week period. Male subjects randomized to active treatment will also receive testosterone replacement gel.

The change from baseline in ADAS-Cog (cognitive test) score at Week 50 and ADCS-CGIC (global cognitive and behavioral measure) at Week 50 will be the primary efficacy endpoints. Safety will be assessed at all visits and by phone at Week 1. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Alzheimer Disease
• Alzheimer's Disease

• NCT number: NCT00231946
• Study type: Interventional
• Source: National Institute on Aging (NIA)
• Status: Completed
• Phase: Phase 3
• Start date: September 2005