A Two-part Multiple Dose Study to Assess the Safety and Effects of AZD3293 in Healthy Elderly and Alzheimer's Patients

Study Overview
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Brief Summary
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This is a two-part multiple dose study in healthy male and female (of non-child bearing potential) elderly volunteers, and in Alzheimer's disease patients, to assess the safety, effects on the body, and blood, CSF, and urine drug levels of AZD3293. AZD3293 is being developed for the treatment of Alzheimer's Disease

Detailed Description
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A Phase I, Randomized, Double-Blind, Placebo-Controlled, Two-Part, Multiple Ascending Dose Study to Assess the Safety, Tolerability, Pharmacokinetics and Effect on Biomarkers of AZD3293 in Plasma and Cerebrospinal Fluid in Healthy Male and Non-Fertile Female Elderly Volunteers and in Mild-to-Moderate Alzheimer Disease Patients

Official Title
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A Phase I, Randomized, Double-Blind, Placebo-Controlled, Two-Part, Multiple Ascending Dose Study to Assess the Safety, Tolerability, Pharmacokinetics and Effect on Biomarkers of AZD3293 in Plasma and Cerebrospinal Fluid in Healthy Male and Non-Fertile Female Elderly Volunteers and in Mild-to-Moderate Alzheimer Disease Patients

Conditions
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Healthy Elderly Volunteers, Mild-to-moderate Alzheimer's Disease Patients

Intervention / Treatment
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* Drug: AZD3293
* Drug: Placebo


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Part 1: Healthy elderly male and female (of non-childbearing potential) subjects. Part 2: Male and non-fertile female AD patients. Body mass index (BMI) between 19 and 30 kg/m2 and weigh at least 50 kg and no more than 100 kg. Part 2: Clinical diagnosis of probable AD according to the NINCDS-ADRDA criteria. Part 2: Manifestation of AD symptoms at least 6 months before randomization. Exclusion Criteria: Part 1: History or presence of psychiatric disease/condition, GI, renal, hepatic, cardiovascular, psychiatric, or retinal diseases or disorders. Part 2: Significant disease affecting the CNS other than Alzheimer's disease, including but not limited to other dementias, other significant neurological or major psychiatric disease. History of use of antipsychotic drugs , or chronic use of antidepressant or anxiolytic drugs. Frequent use (more than 2 days per week during the last 12 weeks) of tobacco or other nicotine products. History of neurological disease, including seizures, recent memory impairment, or clinically significant head injury.

Ages Eligible for Study
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Minimum Age: 55 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Basic Science
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: AZD3293<br>Part 1: Up to 6 sequential cohorts of healthy elderly subjects are planned, with multiple ascending doses, starting with 5 mg (subject to confirmation by the Safety Review Committee) Part 2: Up to 16 mild-to-moderate AD patients administered one to up to 3 dosage levels of AZD3293 | Drug: AZD3293<br>* Oral solution<br>|
| Placebo Comparator: Placebo<br>Part 1: Placebo given (2 subjects in each cohort) Part 2: Placebo given (up to 4 subjects) | Drug: Placebo<br>* Oral solution<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Adverse event monitoring |  | From Baseline up to 20 days | 
| Assessment of vital signs (blood pressure, pulse and body temperature) and physical exams |  | From Baseline up to 20 days | 
| Clinical laboratory tests (chemistry, hematology, urinalysis, renal safety) |  | From Baseline up to 20 days | 
| Assessment of 12-lead digital electrocardiograms to measure rhythm, rate, morphology, QT/QTc interval |  | Fron Baseline up to 20 days | 
| Assessment of telemetry, as reported by Investigator Columbia-Suicide Severity Rating Scale (C-SSRS) | Columbia-Suicide Severity Rating Scale (C-SSRS) captures the occurrence, severity, and frequency of suicide-related thoughts and behaviors during the assessment period. Some questions are yes/no and some are on a scale of 1 (low severity) to 5 (high severity). Completed suicide and non-fatal suicide events are yes/no questions and results presented are the number of participants with these events. Worsening of suicidal ideation was an increase in severity of suicidal ideation from baseline. | From Baseline up to 20 days | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Investigation of the effect of AZD3293 on plasma and cerebrospinal fluid (CSF) biomarkers relevant for Alzheimer Disease (AD) |  | Up to 17 days | 
| Investigation of the effect of AZD3293 on plasma and cerebrospinal fluid (CSF) biomarkers relevant for Alzheimer Disease (AD) in mild-moderate AD patients in comparison to elderly healthy volunteers |  | Up to 17 days | 
| Investigation of the multiple dose Pharmacokinetics for AZD3293 and its metabolite AZ13569724, including dose proportionality for AZD3293 following oral administration |  | Up 17 days | 
| Investigation of the Pharmacokinetics/Pharmacodynamics relationship of the effect of AZD3293 on biomarkers relevant for Alzheimer Disease (AD) in plasma |  | Up to 17 days | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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AZD3293, Healthy volunteers, Elderly volunteers, Alzheimer's Disease patients, AD patients, Phase 1, Multiple Ascending Dose Study