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GSI-953

Phase 1

Alzheimer Disease | Small molecule | Neurology |Pfizer, Inc.|Last Updated: May 3, 2022

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment17

FDA Designations

No designations recorded

Clinical trial landscape

GSI-953 · 3 trials · 2 indications

Phase 1 3
NCT00547560Study Evaluating Multiple Doses Of GSI-953 Within The Elderly PopulationHealthy
COMPLETED49 Analytics
NCT00479219Study Evaluating GSI-953 in Healthy Young and Alzheimer's PatientsAlzheimer Disease
COMPLETED17 Analytics
NCT00441987Study Evaluating the Safety and Pharmacokinetics of a Single Dose of GSI-953Healthy
COMPLETED96 Analytics
PHASE1COMPLETED
Study Evaluating Multiple Doses Of GSI-953 Within The Elderly Population
HealthyUnlock trial analytics
PHASE1COMPLETED
Study Evaluating GSI-953 in Healthy Young and Alzheimer's Patients
Alzheimer DiseaseUnlock trial analytics
PHASE1COMPLETED
Study Evaluating the Safety and Pharmacokinetics of a Single Dose of GSI-953
HealthyUnlock trial analytics

Study Endpoints

Primary Endpoints

The pharmacokinetic and pharmacodynamic profile for the elderly subjects.
6 months
We will assess the pharmacodynamics (PD) of biomarkers amyloid beta 40 and 42 in CSF, following single oral doses of GSI-953 in healthy young and Alzheimer's Patients.
5 months
Number of participants reporting Adverse Event
10 months

Safety

Secondary Endpoints

Pharmacokinetics (PK)
6 months
Pharmacodynamics (PD)
6 months
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
GSI+PlaceboOTHER -
AEXPERIMENTAL -
BPLACEBO_COMPARATOR -
Single Dose of GSI-953EXPERIMENTAL -

Interventions

NameTypeDescription
GSI-953DRUGOral capsule, 10- and 50-mg, either once a day for 14 days or twice a day for 14 days, depending on cohort assignment.
PlaceboOTHER -
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Eligibility Criteria

Age Range65 Years to N/A
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Men or women, greater than or equal to 65 years of age. * Women of nonchildbearing potential (WONCP) may be included if they are either surgically sterile (hysterectomy and/or oophorectomy) or postmenopausal for greater than or equal to 1 year (with FSH greater than or equal t...

Countries:United StatesJapan
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Frequently asked questions about GSI-953

What is GSI-953 used for?

GSI-953 is an investigational small molecule being studied for Alzheimer's disease and for use in healthy volunteers. It is being developed by Pfizer, Inc. (NYSE: PFE) and is currently in Phase 1 clinical development. GSI-953 has been evaluated in early-stage trials, but it is not approved by the FDA.

Who makes GSI-953?

GSI-953 is being developed by Pfizer, Inc. (NYSE: PFE). The drug is an investigational small molecule in Phase 1 clinical development for Alzheimer's disease. Pfizer has conducted early-stage trials of GSI-953 in healthy volunteers and in patients with Alzheimer's disease.

What phase is GSI-953 in?

GSI-953 is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by the FDA. Pfizer has completed Phase 1 trials of GSI-953 in healthy volunteers and in patients with Alzheimer's disease, but the drug is not yet approved for any use.

What clinical trials is GSI-953 in?

GSI-953 has been studied in three completed Phase 1 clinical trials. NCT00441987 evaluated a single dose in 96 healthy male volunteers in Japan. NCT00479219 studied GSI-953 in healthy young volunteers and Alzheimer's patients in the United States. NCT00547560 evaluated multiple doses in 49 healthy elderly volunteers in the United States.

Is GSI-953 FDA approved?

No, GSI-953 is not FDA approved. It is an investigational drug in Phase 1 clinical development. Pfizer has completed early-stage trials of GSI-953 in healthy volunteers and in patients with Alzheimer's disease, but the drug has not been approved for any indication.

What is the development status of GSI-953?

GSI-953 is an investigational small molecule in Phase 1 clinical development. Pfizer has completed three Phase 1 trials of GSI-953, with a total enrollment of 145 participants. These trials were randomized, double-blind, and placebo-controlled. The drug is not approved and is no longer in active clinical trials.