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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT02284906
Registration number
NCT02284906
Ethics application status
Date submitted
4/11/2014
Date registered
6/11/2014
Titles & IDs
Public title
AD-4833/TOMM40_303 Extension Study of the Safety and Efficacy of Pioglitazone to Slow Cognitive Decline in Participants With Mild Cognitive Impairment Due to Alzheimer Disease
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Scientific title
A Blinded Long-term Extension Study to Evaluate the Safety and Efficacy of Pioglitazone (AD-4833 Sustained Release 0.8 mg Daily) to Slow the Progression of Cognitive Decline in Subjects Who Have Completed the AD-4833/TOMM40_301 Study With Diagnosis of Mild Cognitive Impairment Due to Alzheimer Disease
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Secondary ID [1]
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U1111-1154-9637
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Secondary ID [2]
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AD-4833/TOMM40_303
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Mild Cognitive Impairment Due to Alzheimer's Disease
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Condition category
Condition code
Neurological
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Alzheimer's disease
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Neurological
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Dementias
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Mental Health
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Other mental health disorders
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Drugs - Pioglitazone
Treatment: Drugs - Placebo
Experimental: Pioglitazone 0.8 mg - Pioglitazone 0.8 mg, tablets, orally, once, daily, for minimum of 2 years.
Placebo comparator: Placebo - Pioglitazone placebo-matching tablets, orally, once, daily, for minimum of 2 years.
Treatment: Drugs: Pioglitazone
Pioglitazone tablets
Treatment: Drugs: Placebo
Pioglitazone placebo-matching tablets
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Intervention code [1]
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Treatment: Drugs
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Change From Extension Study Baseline in Composite Score of a Broad Cognitive Test Battery at Month 24
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Assessment method [1]
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Composite scores were derived from the test battery. Each test in the battery falls into 1 of the following cognitive domains: Episodic Memory (California Verbal Learning Test - 2nd Edition \[CVLT-II\], Brief Visuospatial Memory Test - Revised \[BVMT-R\]), Executive Function (Trail Making Part B, Digit Span Backwards), Language (Animals, Lexical/Phonemic Fluency), Attention (Digit Span Forward, Trail Making Part A), and Visuospatial (Clock Drawing, BVMT-Copy). Only the domains of episodic memory, executive function, language, and attention were used for the calculation of composite score (i.e., Clock Drawing, BVMT-Copy, and the Multilingual Naming Test (MINT), which do not allow generation of standard z scores, were only used for diagnostic purposes and were excluded from the calculation of the composite score). To form the composite, z-scores were calculated for each test, each z-score for the domain were averaged, and then all relevant domains were averaged to form the composite.
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Timepoint [1]
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Baseline and Month 24
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Secondary outcome [1]
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Time to Diagnosis of Alzheimer's Disease (AD) Dementia
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Assessment method [1]
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Timepoint [1]
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Day 1 and every 6 months (up to maximum of 36 months)
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Eligibility
Key inclusion criteria
1. Completed the pivotal AD-4833/TOMM40_301 study with an adjudicated diagnosis of mild cognitive impairment (MCI) due to Alzheimer's Disease (AD) without ongoing serious adverse events (SAEs) from AD-4833/TOMM40_301.
2. Is male or female and is at least 65 years of age at the time of the Baseline Visit.
3. In the opinion of the investigator, is capable of understanding and complying with the protocol requirements.
4. The participant or, when applicable, the participant's legally acceptable representative signs and dates a written, informed consent form and any required privacy authorization prior to the initiation of any study procedures.
5. Must be living independently or in nonmedical residential care.
6. Has a project partner able to separately consent on his/her own behalf and take part in the study (with the intent to do so as long as the participant is enrolled), providing information on the cognitive, functional, and behavioral status of the participant and assisting with observation of adverse events (AEs) and monitoring of study medication, if needed. Project partners participating in the pivotal AD-4833/TOMM40_301 study are encouraged to participate in this extension study in this capacity.
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Minimum age
65
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
1. Completed the pivotal AD-4833/TOMM40_301 study with an adjudicated diagnosis of AD dementia.
2. Has a current diagnosis of significant psychiatric illness, per Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (including but not limited to major depressive disorder, anxiety disorders) and is in an acute phase/episode, or the participant has a current diagnosis or history of schizophrenia or bipolar disorder.
3. Has a glycosylated hemoglobin (HbA1c) >8% at the extension study Baseline Visit or requires treatment with insulin, triple oral antidiabetic therapy or a peroxisome proliferator-activated receptor gamma (PPAR-?) agonist.
4. Has a clinically significant unstable illness, for example, hepatic impairment or renal insufficiency, or cardiovascular, pulmonary, gastrointestinal (including s/p gastric bypass surgery), endocrine, neurological, rheumatologic, immunologic, infectious, skin and subcutaneous tissue disorders, or metabolic disturbance.
5. Is an immediate family member, study site employee, or is in a dependent relationship with a study site employee who is involved in conduct of this study (eg, spouse, pivotal, child, sibling) or may consent under duress.
6. Is required to take excluded medications.
7. Has a history of hypersensitivity or allergies to pioglitazone or related compounds.
8. Had any of the following values at the extension study Baseline Visit:
1. A serum total bilirubin value >15 x upper limit of normal (ULN).
2. A serum alanine aminotransferase (ALT) or aspartate aminotransferase (AST) value >2 x ULN.
3. Unexplained microscopic/macroscopic hematuria on 2 repeat examinations within 2 weeks.
9. Has a disease or takes medication that, in the opinion of the investigator, could interfere with the assessments of safety, tolerability, or efficacy, or prevent the participant from adequately participating in the study or continue for the anticipated duration of the study.
10. Has received any investigational compound, with the exception of treatment during the AD-4833/TOMM40_301 study, within 30 days prior to Baseline or 5 half-lives prior to Baseline or is currently participating in another study that entails the administration of an investigational or marketed drug, supplement, or intervention including, but not limited to diet, exercise, lifestyle, or invasive procedure.
11. Has any cancer that has been in remission for less than 2 years from the extension study Baseline Visit. Participants with basal cell or stage I squamous cell carcinoma of the skin will be eligible. Participants with current diagnosis of bladder cancer are not eligible irrespective of the remission status.
12. Has a current diagnosis of macular edema, degeneration or any maculopathy.
13. Has a history or current diagnosis of congestive heart failure (CHF), New York Heart Association class III-IV.
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Non-randomised trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
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Intervention assignment
Parallel
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Other design features
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Phase
Phase 3
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Stopped early
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
12/02/2015
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Date of last participant enrolment
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Actual
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Date of last data collection
Anticipated
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Actual
8/05/2018
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Sample size
Target
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Accrual to date
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Final
40
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Recruitment in Australia
Recruitment state(s)
NSW,QLD,VIC,WA
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Recruitment hospital [1]
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- North Ryde
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- Southport
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- Heidelberg West
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Recruitment hospital [4]
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- Nedlands
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2113 - North Ryde
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Recruitment postcode(s) [2]
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4215 - Southport
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Recruitment postcode(s) [3]
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3081 - Heidelberg West
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Recruitment postcode(s) [4]
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6009 - Nedlands
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Recruitment outside Australia
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Strathclyde
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United Kingdom
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Funding & Sponsors
Primary sponsor type
Commercial sector/industry
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Name
Takeda
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Address
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Ethics approval
Ethics application status
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Summary
Brief summary
The purpose of this study is to evaluate the effect of pioglitazone at 24 months compared with placebo on cognitive decline in high-risk participants who have completed the AD-4833/TOMM40_301 study \[NCT01931566\] with an adjudicated diagnosis of mild cognitive impairment (MCI) due to Alzheimer's Disease (AD).
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Trial website
https://clinicaltrials.gov/study/NCT02284906
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
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Medical Director Clinical Science
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Address
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Takeda
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Contact person for public queries
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Contact person for scientific queries
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
Yes
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What data in particular will be shared?
Takeda makes patient-level, de-identified data sets and associated documents available after applicable marketing approvals and commercial availability have been received, an opportunity for the primary publication of the research has been allowed, and other criteria have been met as set forth in Takeda's Data Sharing Policy (see www.TakedaClinicalTrials.com/Approach for details). To obtain access, researchers must submit a legitimate academic research proposal for adjudication by an independent review panel, who will review the scientific merit of the research and the requestor's qualifications and conflict of interest that can result in potential bias. Once approved, qualified researchers who sign a data sharing agreement are provided access to these data in a secure research environment.
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When will data be available (start and end dates)?
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Available to whom?
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Available for what types of analyses?
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How or where can data be obtained?
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What supporting documents are/will be available?
No Supporting Document Provided
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Other Details
Attachment
Statistical analysis plan
https://cdn.clinicaltrials.gov/large-docs/06/NCT02284906/SAP_000.pdf
Study protocol
https://cdn.clinicaltrials.gov/large-docs/06/NCT02284906/Prot_001.pdf
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results are available at
https://clinicaltrials.gov/study/NCT02284906