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Trial details imported from

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Registration number
Ethics application status
Date submitted
Date registered
Date last updated

Titles & IDs
Public title
A Clinical Study to Assess Single and Repeat Doses of a New Medication (GSK933776) in Patients With Alzheimer's Disease
Scientific title
A Randomised, Single-Blind, Placebo-Controlled Study to Investigate the Safety, Tolerability, Immunogenicity, Pharmacokinetics and Pharmacodynamics of Intravenous Infusion of GSK933776 in Patients With Alzheimer's Disease.
Secondary ID [1] 0 0
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Alzheimer's Disease 0 0
Condition category
Condition code
Neurological 0 0 0 0
Alzheimer's disease
Neurological 0 0 0 0

Study type
Description of intervention(s) / exposure
Treatment: Drugs - GSK933776
Treatment: Drugs - Placebo to match GSK933776

Experimental: Part A - 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

Experimental: Part B - 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

Treatment: Drugs: GSK933776
Part A planned doses cohort 1 to cohort 3 0.001 mg/kg, 0.01 mg/kg and 0.1 mg/kg.
Part B planned doses cohort 4 to cohort 7 0.1 mg/kg, 1mg/kg, 3mg/kg and 10 mg/kg

Treatment: Drugs: Placebo to match GSK933776
Part A first 2 cohorts 5 patients per cohort 2 placebo and 3 active third cohort part A 2 placebo 6 active. Part B 8 patients per cohort 2 placebo 6 active.

Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Primary outcome [1] 0 0
Adverse events. Changes suggesting potential adverse events detected in the physical & neurological examination, brain MRI, cognitive status, laboratory parameters, ECG & vital signs.
Timepoint [1] 0 0
12 weeks for Part A; 34 weeks in Part B
Secondary outcome [1] 0 0
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
Timepoint [1] 0 0
12 weeks for Part A; 34 weeks in Part B

Key inclusion criteria
Inclusion criteria:

- Male or female subject with a clinical diagnosis of probable Alzheimer's disease

- Subject has mild AD with Mini Mental State Examination (MMSE) score 18-26 inclusive at
the screening visit.

- Age between 55 and 80 years.

- Female subjects must be post-menopausal or surgically sterile.

- Male subjects whose partner is of child-bearing potential or have been menopausal for
<2 years must use an adequate form of contraception.

- Subject has the ability to comply with procedures for cognitive and other testing & is
fluent in the language used for the administration of the cognitive tests.

- Subject lives with (or has substantial periods of contact with) a permanent caregiver
who is willing to oversee the subject's compliance with protocol-specified procedures
and study medication, and report on subject's status.

- Subject has provided full written informed consent prior to the performance of any
protocol-specified procedure.

- Caregiver has provided a full written informed consent on his/her own behalf prior to
the performance of any protocol-specified procedure.
Minimum age
55 Years
Maximum age
80 Years
Both males and females
Can healthy volunteers participate?
Key exclusion criteria
Exclusion criteria:

- History and/or evidence of any other central nervous system (CNS) disorder that could
be interpreted as a cause of dementia.

- Subjects currently living in a nursing home.

- Subjects who are unable to provide informed consent due to cognitive status

- Screening brain MRI with 1 or more of the following conditions: not consistent with
AD, evidence of other CNS conditions, shows more than minimal vascular changes, more
than 3 microhaemorrhage lesions.

- Focal findings on the neurological exam.

- Any contraindication to lumbar puncture.

- History or evidence of significant psychiatric illness such as schizophrenia or
bipolar affective disorder or significant neurological disease other than AD.

- TIA/stroke in the last 3 years, type 1 or type 2 diabetes mellitus, active
cardiovascular disease, or other uncontrolled risk factors for stroke.

- Current or recent drug or alcohol abuse or dependence or recent or remote history of
the same if that could be a contributing factor to the dementia.

- History or evidence of any significant autoimmune disease or disorder.

- History of seizures (excluding febrile seizures in childhood), current blood clotting
or bleeding disorder or conditions that predispose to these (e.g. cancer), current
clinically significant systemic illness or significant infection within 30 days that
is likely to result in deterioration of the subject's condition or affect the
subject's safety during the study.

- History of cerebral amyloid antiopathy and/or hypertensive cerebral haemorrhage or
with a known risk of intercerebral haemorrhage/microhaemorrhage.

- Treatment which cholinesterase inhibitors, memantine or selegiline unless the therapy
was instituted at least 3 months prior to the administration of GSK933776, at a stable
dosage in the 2 months prior and the same regimen will be continued for the duration
of the trial and the subject is free from any clinically significant side effects
attributable to the drug.

- Subjects who have discontinued cholinesterase inhibitors, memantine, cognitive
enhancing agents, or drugs that potentially affect cognition in the 60 days prior to

- Unless maintained on a stable dose regimen for at least 30 days prior to screening,
any other medications with the potential to affect cognition.

- Use of drugs with platelet anti-aggregant or anti-coagulant properties (excluding the
use of aspirin 325 mg/day or less), anticonvulsants for seizures or narcotic

- History of or current chronic use of systemic steroids or other immunosuppressants.

- Prior participation in clinical investigations involving therapeutic monoclonal
antibodies or proteins derived from monoclonal antibodies or any investigations of
treatments or use of experimental medications for AD or any other investigational
medication or device within 60 days prior to screening or within 5 half-lives of use
of such a medication prior to screening, whichever is longer.

- Contraindications for MRI: pacemaker, aneurysm clips, artificial heart valves, other
metal foreign body, claustrophobia, etc.

- Smoking more than 20 cigarettes or equivalent per day.

Study design
Purpose of the study
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s

Intervention assignment
Single group
Other design features
Phase 1
Type of endpoint(s)
Statistical methods / analysis

Recruitment status
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Date of last participant enrolment
Date of last data collection
Sample size
Accrual to date
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 0 0
GSK Investigational Site - Herston
Recruitment hospital [2] 0 0
GSK Investigational Site - Heidelberg Heights
Recruitment hospital [3] 0 0
GSK Investigational Site - Fremantle
Recruitment postcode(s) [1] 0 0
4029 - Herston
Recruitment postcode(s) [2] 0 0
3084 - Heidelberg Heights
Recruitment postcode(s) [3] 0 0
6160 - Fremantle
Recruitment outside Australia
Country [1] 0 0
State/province [1] 0 0
Country [2] 0 0
State/province [2] 0 0
Country [3] 0 0
State/province [3] 0 0
Country [4] 0 0
State/province [4] 0 0

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry

Ethics approval
Ethics application status

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.
Trial website
Trial related presentations / publications
Public notes

Principal investigator
Name 0 0
GSK Clinical Trials
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries

Summary results
Other publications