- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02249403
Efficacy and Safety of Talsaclidine in Patients With Mild to Moderate Dementia of Alzheimer Type
September 25, 2014 updated by: Boehringer Ingelheim
Efficacy and Safety of 6, 12, 24, and 36 mg Tid po and 36 mg Bid po Talsaclidine (Free Base) for 12 Weeks in a Double-blind, Randomised, Placebo-controlled Parallel Group Comparison in Patients With Mild to Moderate Dementia of Alzheimer Type
The objective of this trial was to assess the dose-response relationship of symptomatic efficacy of talsaclidine base on ADAScog and to assess safety and tolerability
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
362
Phase
- Phase 2
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
40 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Male or female patient, age: over 40 years (lower age if genetic Dementia of Alzheimer Type (DAT) is documented. Patients over 85 years need to be in a clinically stable state (investigator's judgement)
- Patient's educational level is > 4 years
- Patient is able to understand the patient information and give informed consent
- Patient has given written informed consent in accordance with Good Clinical Practice and local legislation
- Patient has a non-demented relative or care giver who is willing to support the clinical trial; his/her written informed consent is optional
- Body weight: within +/- 30% of normal weight (Broca index)
- Diagnosis of DAT by the National Institute of Neurological and communicative Disorders-Alzheimer's Disease and Related Disorder Association (NINCDS-ADRDA) criteria
- MMS-score 10 - 24 inclusive
- Rosen ischemia score is lower or equal to two
- Patient is able to complete the trial examinations, to hear, speak, read and write in a basic way and primary sensorial functions are intact
Exclusion Criteria:
- Any dementia of vascular genesis (excluded by Rosen ischemia score > 2)
- Magnetic Resonance Imaging (MRI) or Computer Tomogram (CT) (more recent than 12 months; if a MRI of CT recording is performed more than 12 months before study entry, it must be repeated) findings make the diagnosis of DAT unlikely
- Any stroke history
All secondary dementia (exclusion diagnosis defined by the NINCDS-ADRDA criteria) as a late complication of:
- Cranio-cerebral trauma
- Intoxication (incl. history of alcohol and drug abuse)
- Cerebral infections (e.g. neurosyphilis)
- Thyroid dysfunction
- Cerebral dysfunction due to metabolic disorders (e.g. unstable thyroid dysfunction, or unstable insulin-dependent diabetes mellitus with hypo-/hyper-glycemic episodes)
- Deficiency of vitamin B12 or folic acid as a reason of dementia
- Brain tumour (A patient with an incidental tumour found on CT not felt to be clinically relevant may be included, i.e.: meningioma)
- Down's syndrome, Parkinsonism, Huntington's chorea
- Multiple sclerosis
- Major depression defined by the Hamilton Depression Rating Scale (HAMD) 17 item scale (≥ 16)
- Depressive pseudo dementia
- Mental retardation
- Hydrocephalus
- Epilepsy
- Endogenous psychoses (schizophrenia)
- Untreated or non-compensated hypertension (Blood Pressure systolic > 180 and/or diastolic > 110 mmHg)
- Hypertension being treated with reserpine, clonidine or β-blockers (these cases have to be adjusted to therapy with e.g. calcium antagonists 4 weeks before start of treatment)
- Severe heart failure (NYHA: III and IV)
- Arrhythmias (Lown: II-IV, Electrocardiogram > 30 ventricular extrasystoles/hour, multifocal or multiform and repetitive forms of ventricular extrasystoles)
- Bronchial asthma with phases of exacerbation or inducible by aspirin or other Nonsteroidal anti-inflammatory drugs
- Severe diabetes mellitus: insulin dependent and not stabilised (patient with an HbA1c in normal range, clinically stable diabetes and any case of insulin dose ≤ 0.5 UI/kg/day may be included), or other metabolic diseases
- Renal insufficiency: calculated creatinine clearance is less than 60 ml/min
- Acute hepatic disorder (liver enzymes above 50 % upper normal limit)
- Chronic hepatitis within the last two years (positive hepatitis titer, Hepatitis A Virus, Hepatitis B Virus, Hepatitis C Virus, cytomegalovirus, Epstein-Barr virus or abnormal immunological values (positive immunoglobulin M(IgM)/IgG) are allowed if all liver enzymes are within the normal range)
- Recent history of liver disease (2 years) including drug intoxication (e.g. narcotics, cytostatics etc.)
- Patients with obvious symptoms of dehydration
- History of drug or alcohol abuse or dependence on other hepatotoxic agents (if a patient is permanently hospitalised and a drug screen performed at the beginning of hospitalisation, no additional drug screen is necessary)
- Neoplasm currently active or likely to recur (except basal cell carcinoma)
- Participation in another clinical trial within the last four weeks and re-entering from this or a previous talsaclidine trial
- Pregnant and lactating woman, woman with childbearing potential not using an approved method of contraception
- Insufficient compliance: in the investigator's opinion the patient or family is unable to comply with the protocol requirements
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: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Placebo Comparator: Placebo
|
|
Experimental: Talsaclidine, 6 mg tid
|
|
Experimental: Talsaclidine, 12 mg tid
|
|
Experimental: Talsaclidine, 24 mg tid
|
|
Experimental: Talsaclidine, 36 mg tid
|
|
Experimental: Talsaclidine, 36 mg bid
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Change in Alzheimer's Disease Assessment Scale cognitive part (ADAScog)
Time Frame: Baseline, week 12
|
Baseline, week 12
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in mini mental state (MMS)
Time Frame: Screening, week 12
|
Screening, week 12
|
|
Change in clinician's global impression rated with Alzheimer's Disease cooperative Study - Clinical Global Impression of Change (ADCS-CGIC)
Time Frame: Baseline, week 12
|
Baseline, week 12
|
|
Change in ADAScog (extension)
Time Frame: Baseline, week 4, 8 and 12
|
measures cognitive capability
|
Baseline, week 4, 8 and 12
|
Change in ADAScog (Total)
Time Frame: Baseline, week 4, 8 and 12
|
Defined as ADAScog + ADAScog (Extension)
|
Baseline, week 4, 8 and 12
|
Change in neuropsychiatric inventory (NPI)
Time Frame: Baseline, week 12
|
measures behavioural symptoms
|
Baseline, week 12
|
Change in Hamilton Depression Rating Scale
Time Frame: Screening, week 12
|
measures depressive mood
|
Screening, week 12
|
Change in instrumental activity of daily living (IADL)
Time Frame: Baseline, week 12
|
measures functional performance
|
Baseline, week 12
|
Change in living status rated on a 6-point verbal rating scale
Time Frame: Baseline, week 12
|
Baseline, week 12
|
|
Number of patients with adverse events
Time Frame: up to 12 months
|
up to 12 months
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
Helpful Links
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
January 1, 1999
Primary Completion (Actual)
January 1, 2000
Study Registration Dates
First Submitted
September 23, 2014
First Submitted That Met QC Criteria
September 23, 2014
First Posted (Estimate)
September 25, 2014
Study Record Updates
Last Update Posted (Estimate)
September 26, 2014
Last Update Submitted That Met QC Criteria
September 25, 2014
Last Verified
September 1, 2014
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 506.203
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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