- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01626391
Safety Study of TRx0237 in Patients Already Taking Medications for Mild and Moderate Alzheimer's Disease
June 10, 2014 updated by: TauRx Therapeutics Ltd
A Double-Blind, Placebo-Controlled, Randomised, 4-Week Safety and Tolerability Study of TRx0237 in Subjects With Mild to Moderate Alzheimer's Disease on Pre-Existing Stable Acetylcholinesterase Inhibitor and/or Memantine Therapy
The primary purpose of this study is to assess the safety and tolerability of TRx0237 when taken at the same time as acetylcholinesterase inhibitors (i.e., donepezil, galantamine, or rivastigmine) and / or memantine to treat patients with mild to moderate Alzheimer's Disease.
Study Overview
Status
Terminated
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
9
Phase
- Phase 2
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Achim, Germany
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Berlin, Germany
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Leipzig, Germany
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München, Germany
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Birmingham, United Kingdom
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Bradford, United Kingdom
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Crowborough, United Kingdom
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Duston, United Kingdom
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Oxford, United Kingdom
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Sheffield, United Kingdom
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St Leonards on Sea, United Kingdom
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Staffordshire, United Kingdom
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
No older than 90 years (Child, Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria
- Clinical diagnosis of all cause dementia and probable Alzheimer's disease (AD)
- Mini-Mental State Examination (MMSE) score of 14-26 (inclusive)
- Cognitive impairment present for at least 6 months
- Age ≤90 years
- Modified Hachinski ischaemic score of ≤4
- Females, if of childbearing potential, must use adequate contraception and maintain this use throughout participation in the study
- Patient is able to read, understand, and provide written informed consent
- Has one or more identified caregivers who are able to verify daily compliance with study drug and provide information on safety and tolerability; the caregiver(s) must also give consent to participate
- Currently taking an taking an acetylcholinesterase inhibitor and/or memantine; the subject must have been taking such medication(s) for ≥3 months. The dosage regimen must have remained stable for ≥6 weeks and it must be planned to remain stable throughout participation in the study.
- Able to comply with the study procedures
Exclusion Criteria:
- Significant central nervous system disorder other than Alzheimer's disease
- Patients in whom baseline MRI is contraindicated such as metal implants in head (except dental), pacemaker, and cochlear implant
- Significant focal or intracranial pathology that would lead to a diagnosis other than probable Alzheimer's disease
- Clinical evidence or history of stroke, transient ischemic attack, significant head injury or other unexplained or recurrent loss of consciousness
- Epilepsy
- Major depressive disorder, schizophrenia or other psychotic disorders, bipolar disorder, substance (including alcohol) related disorders
- Resides in a hospital or continuous care facility
- History of swallowing difficulties
- Pregnant or breastfeeding
- History of significant hematological abnormality or current acute or chronic clinically significant abnormality
- Abnormal serum chemistry laboratory value at Screening deemed to be clinically relevant by the investigator
- Clinically significant cardiovascular disease or abnormal assessments
- Pre-existing or current signs or symptoms of respiratory failure
- Concurrent acute or chronic clinically significant immunologic, renal, hepatic, or endocrine disease (not adequately treated) and/or other unstable or major disease other than Alzheimer's disease
- Prior intolerance to methylthioninium-containing drug or any of the excipients
Treatment currently or within 3 months before Baseline with any of the following medications (unless otherwise noted):
- Tacrine
- Anxiolytics and/or sedatives/hypnotics (exceptions: sedation for MRI or occasional short-acting benzodiazepines, chloral hydrate, or zolpidem as needed at bedtime)
- Antipsychotics (clozapine, chlorpromazine, thioridazine, or ziprasidone)
- Carbamazepine
- Drugs associated with methaemoglobinaemia (e.g., dapsone, local anesthetics such as benzocaine used chronically, primaquine and related antimalarials, sulfonamides)
- Warfarin (and other Coumadin derivates such as phenprocoumon)
- Current or prior participation in a clinical trial of a drug, biologic, or device in which the last dose was received within 28 days prior to Baseline
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Placebo Comparator: Placebo
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Placebo tablets will be administered twice daily (b.i.d.) for 4 weeks.
The placebo tablets include 4 mg of TRx0237 as a urinary and faecal colourant to maintain blinding; hence, the placebo group will receive a total of 8 mg/day of TRx0237.
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Experimental: TRx0237
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TRx0237 tablets 250 mg/day (given as 125 mg bid) for 4 weeks
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Safety and Tolerability of TRx0237 When Coadministered With an Acetylcholinesterase Inhibitor (AChEI) and/or Memantine
Time Frame: 8 weeks
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This was assessed by the number of participants who experienced adverse events within each treatment group (TRx0237 versus placebo) during 8 weeks of treatment.
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8 weeks
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Mark Dale, MD, MAC Clinical Research
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
September 1, 2012
Primary Completion (Actual)
March 1, 2013
Study Completion (Actual)
March 1, 2013
Study Registration Dates
First Submitted
June 20, 2012
First Submitted That Met QC Criteria
June 20, 2012
First Posted (Estimate)
June 22, 2012
Study Record Updates
Last Update Posted (Estimate)
July 11, 2014
Last Update Submitted That Met QC Criteria
June 10, 2014
Last Verified
June 1, 2014
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- TRx-237-008
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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Clinical Trials on TRx0237
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TauRx Therapeutics LtdCompletedAlzheimer's DiseaseKorea, Republic of, United States, Spain, United Kingdom, Taiwan, Poland, Malaysia, Singapore, Canada, Croatia, Italy, Australia, Germany, Romania, Russian Federation, Bulgaria
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TauRx Therapeutics LtdCompletedBehavioral Variant Frontotemporal Dementia (bvFTD)United States, Australia, Canada, Croatia, Poland, Netherlands, United Kingdom, Spain, Germany, Italy, Romania, Singapore
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TauRx Therapeutics LtdCompletedAlzheimer's DiseaseUnited States, Spain, Canada, Belgium, France, Italy, Croatia, Finland, Germany, United Kingdom, Australia, Netherlands