A Clinical Study to Assess Single and Repeat Doses of a New Medication (GSK933776) in Patients With Alzheimer's Disease

Phase 1

Completed

• Conditions: Alzheimer's Disease
• Interventions: Drug: GSK933776; Drug: Placebo to match GSK933776

• Registration Number: NCT00459550
• Lead Sponsor: GlaxoSmithKline

Brief Summary

A study to investigate the safety and tolerability of both single and multiple intravenous administration of GSK933776 in patients with Alzheimer's Disease.

Detailed Description

Not available

Study Timeline

• Study Start: 2007-03-12
• Study First Submitted: 2007-04-11
• Study First Submitted QC: 2007-04-11
• Study First Posted: 2007-04-12
• Primary Completion: 2011-05-30
• Study Completion: 2011-05-30
• Status Verified: 2017-07
• Last Update Submitted: 2017-07-18
• Last Update Posted: 2017-07-21

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Part A	Placebo to match GSK933776	Part A will be a single-blind, single dose, placebo controlled, dose escalation study in up to five consecutive cohorts of Alzheimers Disease subjects. Each subject will receive a single infusion of GSK933776 or placebo. The dose for the first cohort will be 0.001 mg/kg. The proposed nominal doses for subsequent cohorts are 0.01, 0.1, 0.5 and 3 mg/kg, but these may be altered based on the outcome of the safety, tolerability, pharmacodynamic and pharmacokinetic data of the preceding group(s). The maximum possible dose will be 20 mg/kg, although the planned top dose is 18 mg/kg
Part B	Placebo to match GSK933776	Part B will be a single-blind, repeat dose, placebo controlled dose escalation design. It is proposed that there will be initially 3 cohorts of AD subjects. However up to 5 cohorts may be recruited if required in order to characterise GSK933776 fully.Each cohort will consist of eight subjects (six active, two placebo) who will each receive a maximum of three infusions of GSK933776 or placebo. Dosing in Part B may proceed in parallel with Part A following satisfactory review of minimum data sets as below: First cohort in Part B: at least 3 weeks' data from the Part A dose that is the same dose level as that planned for Part B Second cohort in Part B: at least 3 weeks PK data and 8 weeks safety data following the first dose from all the subjects on active treatment in the preceding Part B cohort plus a satisfactory outcome of the PIB Subsequent cohorts in Part B: at least 3 weeks PK data and 8 weeks safety data follow
Part B	GSK933776	Part B will be a single-blind, repeat dose, placebo controlled dose escalation design. It is proposed that there will be initially 3 cohorts of AD subjects. However up to 5 cohorts may be recruited if required in order to characterise GSK933776 fully.Each cohort will consist of eight subjects (six active, two placebo) who will each receive a maximum of three infusions of GSK933776 or placebo. Dosing in Part B may proceed in parallel with Part A following satisfactory review of minimum data sets as below: First cohort in Part B: at least 3 weeks' data from the Part A dose that is the same dose level as that planned for Part B Second cohort in Part B: at least 3 weeks PK data and 8 weeks safety data following the first dose from all the subjects on active treatment in the preceding Part B cohort plus a satisfactory outcome of the PIB Subsequent cohorts in Part B: at least 3 weeks PK data and 8 weeks safety data follow
Part A	GSK933776	Part A will be a single-blind, single dose, placebo controlled, dose escalation study in up to five consecutive cohorts of Alzheimers Disease subjects. Each subject will receive a single infusion of GSK933776 or placebo. The dose for the first cohort will be 0.001 mg/kg. The proposed nominal doses for subsequent cohorts are 0.01, 0.1, 0.5 and 3 mg/kg, but these may be altered based on the outcome of the safety, tolerability, pharmacodynamic and pharmacokinetic data of the preceding group(s). The maximum possible dose will be 20 mg/kg, although the planned top dose is 18 mg/kg

Primary Outcome Measures

Name	Time	Method
Adverse events. Changes suggesting potential adverse events detected in the physical & neurological examination, brain MRI, cognitive status, laboratory parameters, ECG & vital signs.	12 weeks for Part A; 34 weeks in Part B

Secondary Outcome Measures

Name	Time	Method
Plasma pharmacokinetic parameters of GSK933776. Pharmacodynamic effects of GSK 933776. CSF detectable levels of GSK933776. Effects of GSK933776 on plasma and CSF biomarkers. Titre & neutralising activity of anti-GSK933776 antibodies. Exploratory PET scan	12 weeks for Part A; 34 weeks in Part B

Trial Locations

Locations (1)

GSK Investigational Site; 🇸🇪 Stockholm, Sweden