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AzTrials

Alzheimer's DiseaseNCT00843115

Observational Study Of Donepezil In Routine Clinical Practice

An observational study of Alzheimer's Disease, run by Pfizer.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

To characterize the comorbidities and medications of patients treated with donepezil in a routine clinical practice and to verify the therapeutic response of these patients. Read more about this study

Who is it for?
Ages 50 years and older
Conditions the study is for
Alzheimer's Disease
What is being tested?
donepezil
How many people
370 participants
Where
No sites listed yet
Study dates
Feb 2007to Apr 2008
Phase
Observational
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 50 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients with Alzheimer's Disease with or without other etiologies of dementia

Who may be able to join

  • DSM-IV criteria for the clinical diagnosis of mild to moderate Alzheimer's Disease with or without other etiologies of dementia
  • Mini Mental Status Examination score of 10-26

Who cannot join

  • Contraindication as stated in the Canadian label for donepezil
  • Subjects treated with medication for dementia within 30 days prior to baseline

About this study

Official title: Ecological Perspective On The Efficacy And Tolerability Of Donepezil In A Routine Clinical Practice: A Patient Centered Observational Study

To characterize the comorbidities and medications of patients treated with donepezil in a routine clinical practice and to verify the therapeutic response of these patients.

Read the detailed description

This trial was terminated prematurely on December 31, 2007 due to difficulties in enrolling patients in the study. There were no safety or efficacy concerns regarding the study in the decision to terminate the trial.

Being tested
donepezil
Keywords
Alzheimer's Disease, naturalistic study
Medical subject headings
Alzheimer Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • donepezilOther

    Also called Aricept

    Routine clinical practice of prescribing donepezil as per the Canadian label. No drug was supplied as part of this study

Study groups in NCT00843115
Study groupRoleWhat they receive
ObservationalThis study was non-interventional and simply followed for 3 months patients initiating a treatment with donepezil
Receives: Other: donepezil

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. All Subjects Improved/Stabilized or Worsened for Cognitive Activation in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Cognitive Activation symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  2. All Subjects Improved/Stabilized or Worsened for Attention in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Attention symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline and Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  3. All Subjects Improved/Stabilized or Worsened for Repetitiveness in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Repetitiveness symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  4. All Subjects Improved/Stabilized or Worsened for Remembering in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Remembering symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded toCategories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  5. All Subjects Improved/Stabilized or Worsened for Temporal Orientation in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Temporal Orientation symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  6. All Subjects Improved/Stabilized or Worsened for Asphasia in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Asphasia symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded toCategories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  7. All Subjects Improved/Stabilized or Worsened for Spatial Orientation in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Spatial Orientation symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to categories: Improved/Stabilized=4,5,6; Worsened=2,3

    Measured: Baseline and Week 12

  8. All Subjects Improved/Stabilized or Worsened for Judgment in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Judgment symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  9. All Subjects Improved/Stabilized or Worsened for Insight in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Insight symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  10. All Subjects Improved/Stabilized or Worsened for Leisure in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Leisure symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  11. All Subjects Improved/Stabilized or Worsened for Domestic Activities in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Domestic Activities symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  12. All Subjects Improved/Stabilized or Worsened for Hygiene in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Hygiene symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  13. All Subjects Improved/Stabilized or Worsened for Dressing in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Dressing symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  14. All Subjects Improved/Stabilized or Worsened for Telephoning in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Telephoning symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  15. All Subjects Improved/Stabilized or Worsened for Agitation in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Agitation symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  16. All Subjects Improved/Stabilized or Worsened for Mood in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Mood symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  17. All Subjects Improved/Stabilized or Worsened for Anxiety in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Anxiety symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  18. All Subjects Improved/Stabilized or Worsened for Delusions in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Delusions symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  19. All Subjects Improved/Stabilized or Worsened for Apathy in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Apathy symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  20. All Subjects Improved/Stabilized or Worsened for Caregiver in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Caregiver symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

  21. All Subjects Improved/Stabilized or Worsened for Severity in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment

    Severity symptom in TOPS checklist: Number of subjects Improved/Stabilized or Worsened. TOPS Ratings compared at baseline \& Week 12. No symptoms=1, Emergence of symptoms=2, Symptoms Increased=3, Stable=4, Symptoms decreased=5, Cessation of Symptoms=6. Ratings recoded to Categories: Improved/Stabilized=4,5,6; Worsened=2,3.

    Measured: Baseline and Week 12

Secondary outcomes (22)
  1. Change From Baseline in Mini-Mental State Examination (MMSE) Total Scores at Week 12

    MMSE measured general cognitive functioning: orientation, memory, attention, calculation, language, visuospatial functions. Total score derived from sub-scores; total ranges from 0 - 30, higher score indicates better cognitive state. Change: mean score at Week 12 minus mean score at baseline.

    Measured: baseline, Week 12

  2. Last Observation Carried Forward (LOCF) Change From Baseline in Mini-Mental State Examination (MMSE) Total Scores at Week 12

    MMSE measured general cognitive functioning: orientation, memory, attention, calculation, language, visuospatial functions. Total score derived from sub-scores; total ranges from 0 - 30, higher score indicates better cognitive state. Change: mean score at Week 12 minus mean score at baseline

    Measured: baseline, Week 12 LOCF

  3. Correlation Between Change From Baseline in Mini-Mental State Examination (MMSE) Score and Change From Baseline in Combined Patient and Caregiver Health Related Quality of Life (Alzheimer's Disease) (HR QoL-AD) Questionnaire Total Score

    MMSE cognitive function: Total 0 - 30, higher score, better cognitive state. Hr QoL- AD: physical health, energy, mood, living situation, memory, family, marriage, friends, chores, fun, money, self, and life as a whole using scale: 1 (poor) - 4 (excellent), possible total 13 - 52. Separate ratings from both patient and caregiver.

    Measured: baseline, 12 Weeks

  4. Correlation Between LOCF Change From Baseline in Mini-Mental State Examination (MMSE) Score and LOCF Change From Baseline in Combined Patient and Caregiver Health Related Quality of Life (Alzheimer's Disease) (HR QoL-AD) Questionnaire Total Score

    MMSE cognitive function. Total 0 - 30, higher score, better cognitive state. Hr QoL- AD: physical health, energy, mood, living situation, memory, family, marriage, friends, chores, fun, money, self, and life as a whole. Likert scale, 1 (poor) - 4 (excellent), possible total 13 to 52. Separate ratings from both the patient and the caregiver

    Measured: baseline, Week 12 LOCF

  5. Change From Baseline in Combined Patient and Caregiver Health Related Quality of Life (Alzheimer's Disease) (HR QoL-AD) Questionnaire Total Scores

    Hr QoL- AD: physical health, energy, mood, living situation, memory, family, marriage, friends, chores, fun, money, self, and life as a whole. Likert scale, 1 (poor) - 4 (excellent), possible total 13 to 52. Separate ratings from both the patient and the caregiver. Change: mean score at Week 12 minus mean score at baseline.

    Measured: baseline, 12 Weeks

  6. LOCF Change From Baseline in Combined Patient and Caregiver Health Related Quality of Life (Alzheimer's Disease) (HR QoL-AD) Questionnaire Total Scores

    Hr QoL- AD: physical health, energy, mood, living situation, memory, family, marriage, friends, chores, fun, money, self, and life as a whole. Likert scale, 1 (poor) - 4 (excellent), possible total 13 to 52. Separate ratings from both the patient and the caregiver. Change: mean score at Week 12 minus mean score at baseline.

    Measured: baseline, 12 Week LOCF

  7. Correlation Analysis: Change From Baseline in Combined Patient and Caregiver Quality of Life in Alzheimer's Disease(QoL-AD) Questionnaire Total Score Versus Number of Treatment Emergent Adverse Events (TEAEs)

    QoL- AD: physical health, energy, mood, living situation, memory, family, marriage, friends, chores, fun, money, self, and life as a whole. Likert scale, 1 (poor) - 4 (excellent), possible total 13 to 52. Patient and the caregiver totals combined and correlated to number of treatment emergent adverse events.

    Measured: baseline, 12 Weeks

  8. Correlation Analysis: LOCF Change From Baseline in Combined Patient and Caregiver Quality of Life in Alzheimer's Disease (QoL-AD) Questionnaire Total Score Versus the Number of Treatment Emergent Adverse Events (TEAEs)

    QoL- AD: physical health, energy, mood, living situation, memory, family, marriage, friends, chores, fun, money, self, and life as a whole. Likert scale, 1 (poor) - 4 (excellent), possible total 13 to 52. Ratings from patient and the caregiver combined and correlated with number of treatment emergent adverse events.

    Measured: baseline, 12 Weeks LOCF

  9. Change From Baseline Total Score in EuroQuality of Life-5 Domains (EQoL-5D)

    EQoL-5D: measures index of health and defines it in 5 Domains:mobility,self-care,usual activities, pain/discomfort, anxiety/depression. Each domain evaluated on 3-point scale yielding 243 potential combinations; converted to utility values ranging from -0.59(worst state) to 1 (perfect state). Change: Week 12 mean score minus baseline mean score

    Measured: baseline, 12 Weeks

  10. LOCF Change From Baseline Total Score in EuroQuality of Life-5 Domains (EQoL-5D)

    EQoL-5D: measures index of health \& defines it in 5 Domains: mobility, self-care, usual activities, pain/discomfort, anxiety/depression. Each evaluated on 3-point scale yielding 243 potential combinations converted to utility values ranging from -0.59(worst state) to 1 (perfect state). Change:Week 12 mean score minus baseline mean score

    Measured: baseline, 12 Weeks LOCF

  11. Change From Baseline in Visual Analog Scale (VAS) of Subject's Overall Health Included in EuroQuality of Life-5 Domains (EQoL-5D)Questionnaire

    EuroQuality of Life-5 Domains (EQoL-5D)Questionnaire includes a visual analogue scale (VAS) of subject's overall health with 0 (worst state) to 100 (best state). Change: mean score at Week 12 minus mean score at baseline.

    Measured: baseline, 12 Weeks

  12. LOCF Change From Baseline in Visual Analog Scale (VAS) of Subject's Overall Health Included in EuroQuality of Life-5 Domains (EQoL-5D) Questionnaire

    EuroQuality of Life-5 Domains (EQoL-5D) Questionnaire includes a visual analogue scale (VAS) of subject's overall health with 0 (worst state) to 100 (best state). Change: mean score at Week 12 minus mean score at baseline.

    Measured: baseline, 12 Weeks LOCF

  13. Change From Baseline in Subject's Mobility at Week 12

    EuroQuality of Life-5 Domains: health related tool (not disease specific) measuring index of health \& defines health in 5 Domains, including mobility (no problem walking, some problems walking, confined to bed). Analysis of difference between the number of subjects with "any problem" and "no problem" at baseline versus at Week 12.

    Measured: baseline, 12 Weeks

  14. Change From Baseline in Subject's Mobility at Week 12 LOCF

    EuroQuality of Life-5 Domains: health related tool (not disease specific) measuring index of health \& defines health in 5 Domains, including mobility (no problem walking, some problems walking, confined to bed). Analysis of difference between the proportion of subjects with "any problem" at baseline versus Week 12 LOCF

    Measured: Week 12 LOCF

  15. Change From Baseline in Subject's Self-Care at Week 12

    EuroQuality of Life-5 Domains: health related tool (not disease specific) measuring index of health \& defines health in 5 Domains, including self-care (no problem, some problems, unable to wash or dress). Analysis of difference between the number of subjects with "any problem" and "no problem" at baseline versus at Week 12

    Measured: baseline, Week 12

  16. Change From Baseline in Subject's Self-Care at Week 12 LOCF

    EuroQuality of Life-5 Domains: health related tool (not disease specific) measuring index of health \& defines health in 5 Domains, including self-care (no problem, some problems, unable to wash or dress). Analysis of difference between the number of subjects with "any problem" and "no problem" at baseline versus at Week 12 LOCF.

    Measured: baseline, 12 Weeks LOCF

  17. Change From Baseline in Subject's Usual Activities at Week 12

    EuroQuality of Life-5 Domains: health related tool (not disease specific) measuring index of health \& defines health in 5 Domains, including usual activities(no problem, some problem, unable to perform). Analysis of difference between the number of subjects with "any problem" and "no problem" at baseline versus at Week 12.

    Measured: baseline, Week 12

  18. Change From Baseline in Subject's Usual Activities at Week 12 LOCF

    EuroQuality of Life-5 Domains: health related tool (not disease specific) measuring index of health \& defines health in 5 Domains, including usual activities (no problem, some problem, unable to perform). Analysis of difference between the number of subjects with "any problem" and "no problem" at baseline versus at Week 12 LOCF

    Measured: baseline, 12 Weeks LOCF

  19. Change From Baseline in Subject's Pain/Discomfort at Week 12

    EuroQuality of Life-5 Domains: health related tool (not disease specific) measuring index of health \& defines health in 5 Domains, including discomfort(no pain, moderate pain, extreme pain). Analysis of difference between the number of subjects with "any problem" and "no problem" at baseline versus at Week 12.

    Measured: baseline, Week 12

  20. Change From Baseline in Subject's Pain/Discomfort at Week 12 LOCF

    EuroQuality of Life-5 Domains: health related tool (not disease specific) measuring index of health \& defines health in 5 Domains, including discomfort(no pain, moderate pain, extreme pain). Analysis of difference between the proportion of subjects with "any problem" at baseline versus Week 12 LOCF

    Measured: Week 12 LOCF

  21. Change From Baseline in Subject's Anxiety/Depression at Week 12

    EuroQuality of Life-5 Domains: health related tool (not disease specific) measuring index of health \& defines health in 5 Domains, including anxiety/depression(none, moderate or extreme anxiety/depression). Analysis of difference between the number of subjects with "any problem" and "no problem" at baseline versus at Week 12.

    Measured: baseline, Week 12

  22. Change From Baseline in Subject's Anxiety/Depression at Week 12 LOCF

    EuroQuality of Life-5 Domains: health related tool (not disease specific) measuring index of health \& defines health in 5 Domains, including anxiety/depression (none, moderate or extreme anxiety/depression). Analysis of difference between the proportion of subjects with "any problem" and "no problem" at baseline versus at Week 12 LOCF

    Measured: baseline, Week 12 LOCF

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Feb 2009 (estimated)
  2. Study startFeb 2007
  3. Primary completionApr 2008
  4. Study completionApr 2008

Why it stopped: See Detailed Description.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Ecologic or community
Time perspective
Prospective
Enrolment
370 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00843115
Sponsor's protocol ID
NRA2500065
Other IDs
ECO STUDY
Status last verified
Feb 2014
First submitted
12 Feb 2009
Last updated
13 Mar 2014
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Alzheimer's Disease, run by Pfizer.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 13 Mar 2014. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 2 Jun 2009). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

All Subjects Improved/Stabilized or Worsened for Cognitive Activation in Top Symptom Checklist (TOPS) Alzheimer's Disease Assessment (time frame: Baseline and Week 12). The study lists 21 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Mar 2014.

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