Alzheimer's DiseasePhase 3NCT00428090
Rosiglitazone (Extended Release Tablets) As Monotherapy In Subjects With Mild To Moderate Alzheimer's Disease
A Phase 3 study testing Rosiglitazone in people with Alzheimer's Disease, run by GlaxoSmithKline at 138 sites in 20 countries.
Trial summary
Rosiglitazone (RSG) has been tested and is approved as a treatment for type II diabetes mellitus, a disease that occurs when the body ineffectively uses glucose. RSG XR, the investigational drug, is an extended-release form of RSG. Read more about this study
- Who is it for?
- Ages 50 to 90 years
- Conditions the study is for
- Alzheimer's Disease
- What is being tested?
- Rosiglitazone
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 862 participants
- Where
- 138 sitesin 20 countries
- Study dates
- 27 Feb 2007to 5 Sep 2008
- Phase
- Phase 3
- 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 to 90 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Clinical diagnosis of probable Alzheimer's Disease (AD).
- MMSE score 10 to 23
- Has not taken an approved AD therapy in last 30 days.
- No previous hypersensitivity/intolerance to AChEIs
- Have a regular caregiver.
Who cannot join
- Diagnosis of vascular dementia.
- Type I or secondary diabetes mellitus.
- Type II diabetes mellitus treated with insulin, sulfonylurea or glipizide.
- History or evidence of congestive heart failure, clinically significant peripheral edema or anemia.
- History of significant psychiatric illness, major depressive disorder or current depression needing initiation of treatment.
Trial locations and contacts
138 sites in 20 countries.
138 sites in 20 countries
United States41 sites
GSK Investigational Site
Albany, New York, 12208
GSK Investigational Site
Atlanta, Georgia, 30033
GSK Investigational Site
Centerville, Ohio, 45459
GSK Investigational Site
Cleveland, Ohio, 44120
GSK Investigational Site
Cleveland, Ohio, 44195
GSK Investigational Site
Deerfield Beach, Florida, 33064
GSK Investigational Site
Delray Beach, Florida, 33445
GSK Investigational Site
Denver, Colorado, 80218
GSK Investigational Site
DeSoto, Texas, 75115
GSK Investigational Site
Destin, Florida, 32541
GSK Investigational Site
Fairfield, Connecticut, 06824
GSK Investigational Site
Hialeah, Florida, 33016
GSK Investigational Site
Jenkintown, Pennsylvania, 19046
GSK Investigational Site
Kenilworth, New Jersey, 07033
GSK Investigational Site
Las Vegas, Nevada, 89146
GSK Investigational Site
Los Angeles, California, 90036
GSK Investigational Site
Melbourne, Florida, 32901
GSK Investigational Site
Memphis, Tennessee, 35105
GSK Investigational Site
Middleton, Wisconsin, 53562-2215
GSK Investigational Site
Nashville, Tennessee, 37212
GSK Investigational Site
Newport Beach, California, 92660
GSK Investigational Site
Norwalk, Connecticut, 06851
GSK Investigational Site
Oklahoma City, Oklahoma, 73112
GSK Investigational Site
Oklahoma City, Oklahoma, 73118
GSK Investigational Site
Palo Alto, California, 94305
GSK Investigational Site
Philadelphia, Pennsylvania, 19102
GSK Investigational Site
Philadelphia, Pennsylvania, 19104
GSK Investigational Site
Phoenix, Arizona, 85004
GSK Investigational Site
Plantation, Florida, 33317
GSK Investigational Site
Reseda, California, 91355
GSK Investigational Site
Saint Paul, Minnesota, 55101
GSK Investigational Site
San Antonio, Texas, 78229-3900
GSK Investigational Site
San Antonio, Texas, 78229
GSK Investigational Site
San Diego, California, 92120
GSK Investigational Site
San Francisco, California, 94109
GSK Investigational Site
Sunrise, Florida, 33351
GSK Investigational Site
Syracuse, New York, 13210
GSK Investigational Site
Tampa, Florida, 33647
GSK Investigational Site
Toledo, Ohio, 43623
GSK Investigational Site
Toms River, New Jersey, 08755
GSK Investigational Site
Tulsa, Oklahoma, 74104
Germany35 sites
GSK Investigational Site
Achim, Lower Saxony, 28832
GSK Investigational Site
Bad Homburg, Hesse, 61348
GSK Investigational Site
Baesweiler, North Rhine-Westphalia, 52499
GSK Investigational Site
Berlin, State of Berlin, 12163
GSK Investigational Site
Berlin, State of Berlin, 12167
GSK Investigational Site
Berlin, State of Berlin, 13125
GSK Investigational Site
Berlin, State of Berlin, 13507
GSK Investigational Site
Berlin, State of Berlin, 14163
GSK Investigational Site
Bielefeld, North Rhine-Westphalia, 33647
GSK Investigational Site
Bochum, North Rhine-Westphalia, 44892
GSK Investigational Site
Chemnitz, Saxony, 09111
GSK Investigational Site
Cologne, North Rhine-Westphalia, 50767
GSK Investigational Site
Dresden, Saxony, 01097
GSK Investigational Site
Dresden, Saxony, 01307
GSK Investigational Site
Duisburg, North Rhine-Westphalia, 47051
GSK Investigational Site
Ellwangen, Baden-Wurttemberg, 73479
GSK Investigational Site
Gera, Thuringia, 07551
GSK Investigational Site
Günzburg, Bavaria, 89312
GSK Investigational Site
Halle, Saxony-Anhalt, 06122
GSK Investigational Site
Hamburg, Free and Hanseatic City of Hamburg, 20249
GSK Investigational Site
Hamburg, Free and Hanseatic City of Hamburg, 22083
GSK Investigational Site
Hamburg, Free and Hanseatic City of Hamburg, 22143
GSK Investigational Site
Hanover, Lower Saxony, 30559
GSK Investigational Site
Itzehoe, Schleswig-Holstein, 25524
GSK Investigational Site
Jülich, North Rhine-Westphalia, 52428
GSK Investigational Site
Leipzig, Saxony, 04103
GSK Investigational Site
Munich, Bavaria, 80331
GSK Investigational Site
Munich, Bavaria, 81675
GSK Investigational Site
Nuremberg, Bavaria, 90402
GSK Investigational Site
Schwerin, Mecklenburg-Vorpommern, 19053
GSK Investigational Site
Schwerin, Mecklenburg-Vorpommern, 19055
GSK Investigational Site
Tübingen, Baden-Wurttemberg, 72076
GSK Investigational Site
Ulm, Baden-Wurttemberg, 89073
GSK Investigational Site
Ulm, Baden-Wurttemberg, 89075
GSK Investigational Site
Unterhaching, Bavaria, 82008
Austria7 sites
GSK Investigational Site
Graz-Eggenberg, A-8020
GSK Investigational Site
Hall in Tirol, A-6060
GSK Investigational Site
Linz, 4020
GSK Investigational Site
Linz, A-4020
GSK Investigational Site
Vienna, 1030
GSK Investigational Site
Vienna, A-1090
GSK Investigational Site
Vienna, A-1130
China7 sites
GSK Investigational Site
Beijing, 100083
GSK Investigational Site
Beijing, 100730
GSK Investigational Site
Guangzhou, Guangdong, 510370
GSK Investigational Site
Shanghai, 200025
GSK Investigational Site
Shanghai, 200030
GSK Investigational Site
Shanghai, 200040
GSK Investigational Site
Tianjin, 300052
Hungary5 sites
GSK Investigational Site
Budapest, 1106
GSK Investigational Site
Gyula, 5700
GSK Investigational Site
Kaposvár, 7400
GSK Investigational Site
Pécs, 7623
GSK Investigational Site
Szeged, 6725
Russia5 sites
GSK Investigational Site
Moscow, 115522
GSK Investigational Site
Moscow, 115552
GSK Investigational Site
Moscow, 117049
GSK Investigational Site
Saint Petersburg, 197022
GSK Investigational Site
Saint Petersburg, 198103
Bulgaria4 sites
GSK Investigational Site
Plovdiv, 4000
GSK Investigational Site
Sofia, 1113
GSK Investigational Site
Sofia, 1431
GSK Investigational Site
Sofia, 1527
Chile4 sites
GSK Investigational Site
Providencia / Santiago, Región Metro de Santiago, 7500710
GSK Investigational Site
Puente Alto - Santiago, Región Metro de Santiago, 8207257
GSK Investigational Site
Santiago, Región Metro de Santiago, 7560356
GSK Investigational Site
Viña del Mar, Valparaiso, 252-0997
Estonia4 sites
GSK Investigational Site
Tallinn, 10138
GSK Investigational Site
Tallinn, 10614
GSK Investigational Site
Tallinn, 10617
GSK Investigational Site
Tartu, 51014
Greece3 sites
GSK Investigational Site
Athens, 115 21
GSK Investigational Site
Melíssia, 151 27
GSK Investigational Site
Thessaloniki, 57010
India3 sites
GSK Investigational Site
Bangalore, 560034
GSK Investigational Site
Nagpur, 440010
GSK Investigational Site
Tirupati, 517507
Mexico3 sites
GSK Investigational Site
México, 14000
GSK Investigational Site
Monterrey, Nuevo León, 64660
GSK Investigational Site
Saltillo, Coahuila, 25000
Pakistan3 sites
GSK Investigational Site
Karachi, 74800
GSK Investigational Site
Lahore, 54000
GSK Investigational Site
Lahore, 54590
Puerto Rico3 sites
GSK Investigational Site
Cabo Rojo, Puerto Rico, 623
GSK Investigational Site
San Juan, Puerto Rico, 00918
GSK Investigational Site
San Juan, Puerto Rico, 90660
United Kingdom3 sites
GSK Investigational Site
Bradford, BD3 0DQ
GSK Investigational Site
Derriford, Plymouth, PL6 8BX
GSK Investigational Site
West of Scotland Science Park, Glasgow, G20 0XA
Croatia2 sites
GSK Investigational Site
Dubrovnik, 20000
GSK Investigational Site
Zagreb, 10000
Philippines2 sites
GSK Investigational Site
Pasig, 1600
GSK Investigational Site
Quezon City, 1102
South Korea2 sites
GSK Investigational Site
Seongnam-si, 463-707
GSK Investigational Site
Seoul, 143-729
About this study
Official title: A 24-week, Double-blind, Double-dummy, Randomized, Parallel-group Study to Investigate the Effects of Rosiglitazone (Extended Release Tablets), Donepezil, and Placebo as Monotherapy on Cognition and Overall Clinical Response in APOE ε4-stratified Subjects With Mild to Moderate Alzheimer's Disease. (REFLECT-1)
Rosiglitazone (RSG) has been tested and is approved as a treatment for type II diabetes mellitus, a disease that occurs when the body ineffectively uses glucose. RSG XR, the investigational drug, is an extended-release form of RSG. This study tests whether RSG XR safely provides benefit to people with mild to moderate Alzheimer's disease (AD). RSG XR is a new approach to AD therapy and this study tests whether one's genes alter the effectiveness of RSG XR. Glucose is used by cells to make energy that they need to live. Changes in the ability of cells to use of glucose can lead to diseases like diabetes. Glucose levels may be lower in the brains of AD patients, and their brain cells may also use glucose less well than in unaffected people. The proper function of brain cells may be critical to memory and thought. If brain cells use glucose poorly, this might impact AD. Drugs that help brain cells properly use glucose may help a person maintain normal memory and thinking. Data suggesting that RSG may help AD patients was first seen in a small study at the Univ. of Washington and then from a larger international GSK study. In the first study, those receiving RSG once daily for 6 months scored better on 3 tests of memory and thought than those who did not receive RSG. In the GSK study, those that benefited most from therapy with RSG XR had a specific genetic pattern. They lacked the gene that caused them to produce apolipoprotein E e4 (APOE e4). Subjects who have the APOE e4 gene may have two copies, one from each parent, or they may have only one APOE e4 gene meaning that they inherited either the APOE e2 or APOE e3 version of the gene from one parent. Subjects with one copy of the APOE e4 gene remained fairly stable while those with two copies of APOE e4 continued to worsen during the 6-month treatment. This study will directly test the effect of RSG XR on people who either have or lack the APOE e4 gene.
Read the detailed description
A 24-week, double-blind, double-dummy, randomized, parallel-group study to investigate the effects of rosiglitazone (extended release tablets), donepezil, and placebo as monotherapy on cognition and overall clinical response in APOE e4-stratified subjects with mild to moderate Alzheimer's disease. (REFLECT-1)
- Conditions
- Alzheimer's Disease
- Being tested
- Rosiglitazone
- Keywords
- apolipoprotein E, monotherapy, cognition, mild, rosiglitazone, Alzheimer's disease, moderate
- Medical subject headings
- Alzheimer Disease, Lymphoma, Follicular
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
RosiglitazoneDrug
XR (extended release) oral tablets
| Study group | Role | What they receive |
|---|---|---|
| Rosiglitazone | Experimental | XR (extended release) oral tablets Receives: Drug: Rosiglitazone |
| Placebo | Other | Placebo (Double-Dummy to Match) Receives: Drug: Rosiglitazone |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change From Baseline (W0) in Mean ADAS-Cog Total Score at W24 as a Function of APOE e4 Status in Apolipoprotein epsilon4 (APOE e4) Negative Cohort
The 11-item ADAS-Cog assessed a range of cognitive abilities including memory, comprehension, orientation in time and place and spontaneous speech. Items were evaluated by tests and clinician ratings on a 5-point scale. Scores ranged from 0-70 with higher scores indicates more dysfunction. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline is defined as value at W0. Estimated value was calculated by Active treatment minus Placebo. The adjusted means were presented. A hierarchical testing procedure was used to control for the two rosiglitazone dose groups and the three genetic subgroups. There was no adjustment for the donepezil versus placebo comparisons, which were included to assess the sensitivity of the trial to detect a treatment effect.
Measured: Baseline (W0) and W24
Change From Baseline (W0) in Mean ADAS-Cog Total Score at W24 as a Function of APOE e4 Status in All Except e4/e4's Cohort
The 11-item ADAS-Cog assessed a range of cognitive abilities including memory, comprehension, orientation in time and place and spontaneous speech. Items were evaluated by tests and clinician ratings on a 5-point scale. Scores ranged from 0-70 with higher scores indicates more dysfunction. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline is defined as value at W0. Estimated value was calculated by Active treatment minus Placebo. A hierarchical testing procedure was used to control for the two rosiglitazone dose groups and the three genetic subgroups. There was no adjustment for the donepezil versus placebo comparisons, which were included to assess the sensitivity of the trial to detect a treatment effect.
Measured: Baseline (W0) and W24
Change From Baseline (W0) in Mean ADAS-Cog Total Score at W24 as a Function of APOE e4 Status in Full Population Cohort
The 11-item ADAS-Cog assessed a range of cognitive abilities including memory, comprehension, orientation in time and place and spontaneous speech. Items were evaluated by tests and clinician ratings on a 5-point scale. Scores ranged from 0-70 with higher scores indicates more dysfunction. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline is defined as value at W0. Estimated value was calculated by Active treatment minus Placebo. A hierarchical testing procedure was used to control for the two rosiglitazone dose groups and the three genetic subgroups. There was no adjustment for the donepezil versus placebo comparisons, which were included to assess the sensitivity of the trial to detect a treatment effect.
Measured: Baseline (W0) and W24
Change From Baseline (W0) in Mean CIBIC+ Global Functioning Total Score at W24 as a Function of APOE e4 Status in APOE4 Negative Cohort
The CIBIC+ assessment comprised of a 7-point rating of severity (at baseline) and change (at indicated time points). It was rated on a scale of 1 to 7 as 1: markedly improved, 2.: moderately improved, 3: minimally improved, 4: no change, 5: minimally worse, 6: moderately worse and 7: markedly worse; higher score means greater dysfunction. It was based on interviews with the par. and caregiver by an independent rater. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0. Endpoint treatment differences which were adjusted to take account of missing data are derived. Estimated value was calculated by Active treatment minus Placebo. A hierarchical testing procedure was used to control for the two rosiglitazone dose groups and the three genetic subgroups. There was no adjustment for the donepezil versus placebo comparisons, which were included to assess the sensitivity of the trial to detect a treatment effect.
Measured: Baseline (W0) and W24
Change From Baseline (W0) in Mean CIBIC+ Global Functioning Total Score at W24 as a Function of APOE e4 Status in All Except e4/e4's Cohort
The CIBIC+ assessment comprised of a 7-point rating of severity (at baseline) and change (at indicated time points). It was rated on a scale of 1 to 7 as 1: markedly improved, 2.: moderately improved, 3: minimally improved, 4: no change, 5: minimally worse, 6: moderately worse and 7: markedly worse; higher score means greater dysfunction. It was based on interviews with the par. and caregiver by an independent rater. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0. Endpoint treatment differences which were adjusted to take account of missing data are derived. Estimated value was calculated by Active treatment minus Placebo. A hierarchical testing procedure was used to control for the two rosiglitazone dose groups and the three genetic subgroups. There was no adjustment for the donepezil versus placebo comparisons, which were included to assess the sensitivity of the trial to detect a treatment effect.
Measured: Baseline (W0) and W24
Change From Baseline (W0) in Mean CIBIC+ Global Functioning Total Score at W24 as a Function of APOE e4 Status in Full Population Cohort
The CIBIC+ assessment comprised of a 7-point rating of severity (at baseline) and change (at indicated time points). It was rated on a scale of 1 to 7 as 1: markedly improved, 2.: moderately improved, 3: minimally improved, 4: no change, 5: minimally worse, 6: moderately worse and 7: markedly worse; higher score means greater dysfunction. It was based on interviews with the par. and caregiver by an independent rater. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0. Endpoint treatment differences which were adjusted to take account of missing data are derived. Estimated value was calculated by Active treatment minus Placebo. A hierarchical testing procedure was used to control for the two rosiglitazone dose groups and the three genetic subgroups. There was no adjustment for the donepezil versus placebo comparisons, which were included to assess the sensitivity of the trial to detect a treatment effect.
Measured: Baseline (W0) and W24
Secondary outcomes (21)
Change From Baseline (W0) in Mean ADAS-Cog Total Score at W8, W16, W24
The 11-item ADAS-Cog assessed a range of cognitive abilities including memory, comprehension, orientation in time and place and spontaneous speech. Most items were evaluated by tests, but some were dependent on clinician ratings on a 5-point scale. Scores ranged from 0-70 with higher scores indicating greater dysfunction. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline is defined as value at W0. Endpoint treatment differences were adjusted to take account of missing data. It was evaluated at Baseline, W8, W16 and W24.
Measured: Baseline (W0) and up to W24
Change From Baseline (W0) in Mean CIBIC+ Global Functioning Total Score at W8, W16, W24
The CIBIC+ assessment comprised of a 7-point rating of severity (at baseline) and change (at indicated time points). It was rated on a scale of 1 to 7 as 1: markedly improved, 2.: moderately improved, 3: minimally improved, 4: no change, 5: minimally worse, 6: moderately worse and 7: markedly worse; higher score means more dysfunction. The scale was based on interviews with the par. and caregiver and was completed by an independent rater. It required separate structured 15-20 minute interviews with the par. and caregiver. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0. Endpoint treatment differences which were adjusted to take account of missing data are derived. It was evaluated at Baseline, W8, W16 and W24.
Measured: Baseline (W0) and up to W24
Change From Baseline (W0) in Mean Neuropsychiatric Inventory (NPI) Total Score at W8, W16, W24
The NPI assessed behavioral disturbances comprises 10 dimensions: delusions, hallucinations, dysphoria, apathy, euphoria, disinhibition, aggressiveness and agitation, irritability, anxiety and aberrant motor activity. The par. caregiver asked about behavior in the par. If "Yes", the informant then rates both the severity on a 3-point scale, 1: mild to 3: severe (total range: 0-36) and the frequency using a 4-point scale, 1: occasionally to 4: very frequently. The total domain score was frequency × severity. The distress was scored on 5-point scale, 0: no distress to 5 - very severe or extreme. A total NPI score can be calculated by adding all domain scores together; NPI total score: from 0-144 and NPI distress score: from 0-60, all with higher scores indicating more severe behavioral disturbance. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0.
Measured: Baseline (W0) and up to W24
Change From Baseline (W0) in Mean Disability Assessment for Dementia (DAD) Scale Total Score at W8, W16, W24
The DAD, assessed the ability of a par. to execute basic and instrumental activities of daily living (ADL) and leisure activities. The scale consists of 40 questions assessing basic and instrumental ADLs. This scale assesses a participants' ability to initiate, plan, and perform activities related to hygiene, dressing, continence, eating, meal preparation, telephoning, going on an outing, finance and correspondence, medications, leisure, and housework. Each item was scored as yes: 1, no: 0 and N/A: not applicable. Higher scores indicate less disability with a score of 100 indicating no disability and 0 indicating no functional ability. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0. The percentage score was calculated as (DAD total score/total number of applicable items) multiplied by 100. Endpoint treatment differences which were adjusted to take account of missing data are derived.
Measured: Baseline (W0) and up to W24
Change From Baseline (W0) in Mean Short Term Memory Assessment Total Score (ADAS-Cog Q1 Plus Q7) at W8, W16, W24
Change from Baseline in short term memory assessment score was assessed from a combined analysis of items 1 (word recall task) and 7 (word recognition task) of ADAS-Cog scale. Word recall task consist of the participants score was the mean number of words not recalled on three trials (maximum score 10) and word recognition task, to score this item the number of incorrect responses was counted (maximum error score was 12). Higher score indicating greater dysfunction. Total score is sum of individual score. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0. Endpoint treatment differences which were adjusted to take account of missing data are derived.
Measured: Baseline (W0) and up to W24
Change From Baseline (W0) in Mean European Quality of Life -5 Dimensions Proxy Version (EQ-5D Proxy) Total Score at W12, W24 Assessed by Utility
The EQ-5D Proxy was a 2 part scale used to assess the quality of life and utility benefit. The data for Part 1 is presented. It is a 5 dimensional Health State Classification. Caregivers were asked to respond as they feel the par. would on dimensions of mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Answers to each question were recorded on a 3-point scale which indicates the level of impairment (level 1= no problem; level 2=some or moderate problem(s) and level 3=unable, or extreme problem with higher scores indicating greater dysfunction. EQ-5D Proxy assessments was performed at Baseline, W12 and W24. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0. Endpoint treatment differences which were adjusted to take account of missing data are derived.
Measured: Baseline (W0) and up to W24
Change From Baseline (W0) in Mean European Quality of Life -5 Dimensions Proxy Version (EQ-5D Proxy) Total Score at W12, W24 Assessed by Thermometer (Visual Analog Scale [VAS])
The EQ-5D Proxy is a 2 part scale used to assess the quality of life and utility benefit. The data for Part 2 is presented. It is a the visual analogue scale Thermometer which assessed caregiver's impression of par. overall health. The Thermometer has endpoints of 100 (best imaginable health state) and 0 (worst imaginable health state). EQ-5D Proxy assessments was performed at Baseline, W12 and W24. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0. Endpoint treatment differences which were adjusted to take account of missing data are derived.
Measured: Baseline (W0) and up to W24
Time Spent Caring for Basic and Instrumental Activities Resource Utilization in Dementia (RUD) Scale at W12 and W24
The RUD instrument was developed as a comprehensive tool to assess the amount of resource use among demented par. RUD assess both formal and informal resource use of the par. and the primary caregiver, making it possible to calculate costs from a societal perspective. Q1 relates to assisting par. with basic activities of daily living and Q2 relates to instrumental activities of daily living. The assessments was performed at Baseline, W12 and W24. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0. Endpoint treatment differences which were adjusted to take account of missing data are derived.
Measured: Baseline (W0) and up to W24
Change From Baseline (W0) in Alzheimer's Carer's Quality of Life Instrument (ACQLI) Score at W12 and W24.
The ACQLI was an assessment of caregiver quality of life. This instrument consists of 30 questions exploring various aspects of carer's quality of life. Each of the questions had a two point response and the 30 questions were summed to provide a total score. Items are assumed to be unidimensional (i.e., represent a single variable) and are scored 0/1 (false/true) before summation into a total score with a 0-30 range. To ease comparisons between scales, ACQLI scores were transformed to range between 0-100 (100: worse). The assessments was performed at Baseline, W12 and W24. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0. Endpoint treatment differences which were adjusted to take account of missing data are derived.
Measured: Baseline (W0) and up to W24
Change From Baseline (W0) in Mini Mental State Examination (MMSE) Total Score at W24.
The MMSE consists of 11 tests of orientation, memory (recent and immediate), concentration, language and praxis. Scores range from 0 to 30, with lower scores indicating greater cognitive impairment. The scale is completed by the investigator, based on the performance of the par. and takes approximately 5 to 10 minutes to administer. The assessments was performed at Baseline and W24. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0. Endpoint treatment differences which were adjusted to take account of missing data are derived
Measured: Baseline (W0) and W24
Change From Baseline (W0) in Glycosylated Hemoglobin (HbA1c) at W24.
The blood sample was collected for assessments of HbA1c levels at Baseline and W24. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0. Endpoint treatment differences which were adjusted to take account of missing data are derived.
Measured: Baseline (W0) and W24
Number of Participants With Adverse Events Defined by Severity
An AE is defined as any untoward medical occurrence in a participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. An AE included significant or unexpected worsening or exacerbation of the condition/indication under study, exacerbation of a chronic or intermittent pre-existing condition, new conditions detected or diagnosed, signs, symptoms, or the clinical sequelae of a suspected overdose of either investigational product or a concurrent medication. Number of participants with any AE and as per severity were reported. Refer to the general AE/SAE module for a list of AEs and SAEs.
Measured: Up to W24
Number of Participants With Systolic and Diastolic Blood Pressure (SBP and DBP), Heart Rate (HR) and Weight Values of Potential Clinical Concern (PCC) Any Time on Treatment (ATOT).
SBP, DBP and HR of par. were recorded in sitting posture as vital signs, while body weight was measured without shoes and wearing light clothing at each visit. The blood pressure (BP) and HR values were identified as of PCC if the vales were out of the reference range (for SBP, 90 to 140 millimeters of mercury (mmHg), DBP, 50 to 90 mmHg, and HR >100 or <50 beats per minute [bpm]) or meet a change from Baseline criterion. For SBP it was increase from Baseline (high) if increased by more than or equal to (>=) 40 mmHg; decrease from Baseline (low) if decreased by >=30 mmHg. For DBP, increase from Baseline (high) if increased by >=30 mmHg; decrease from Baseline (low) if decreased by >=20 mmHg. For HR, increase from Baseline (high) if increased by >=30 bpm; decrease from Baseline (low) if decreased by >=30 bpm. For weight, increase from Baseline (high) if increased by >=7%; decrease from Baseline (low) if decreased by >=7%. Baseline was defined as value at W0.
Measured: Up to W24
Change From Baseline (W0) in 12-lead Electrocardiogram (ECG)
Triplicate 12-lead ECG measures was obtained digitally, approximately one minute apart after the par. had rested in the supine position in a quiet room (no TV, minimal talking) for at least 10 minutes. Conduction intervals from the 12-lead ECGs were manually read and confirmed by an external cardiologist/vendor. The ECG parameters includes PR interval, QRS duration, QT - uncorrected interval, QTc Bazett (QTcB), QTc Fridericia (QTcF) and RR interval of Central Cardiologist are reported. The assessments was performed at Baseline and W24. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at Screening/Visit 1/W-6.
Measured: Baseline (W0) and up to W24
Change From Baseline (W0) in Heart Rate (HR) Measured From 12-lead Electrocardiogram (ECG)
Triplicate 12-lead ECG measures was obtained digitally, approximately one minute apart after the par. had rested in the supine position in a quiet room (no TV, minimal talking) for at least 10 minutes. Conduction intervals from the 12-lead ECGs were manually read and confirmed by an external cardiologist/vendor. The ECG HR of Central Cardiologist reported. The assessments was performed at Baseline and W24. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at Screening/Visit 1/W-6.
Measured: Baseline (W0) and up to W24
Change From Baseline (W0) in Body Weight
Body weight will be measured at all visits, without shoes and wearing light clothing. The assessments was performed at Baseline, W4, W8, W12, W16, and W24. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0.
Measured: Baseline (W0) and up to W24
Change From Baseline (W0) in Hemoglobin
Hematology parameters were assessed at Baseline, W4, W12 and W24. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0.
Measured: Baseline (W0) and up to W24
Change From Baseline (W0) in Hematocrit
Hematology parameters were assessed at Baseline, W4, W12 and W24. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0.
Measured: Baseline (W0) and Up to W24
Change From Baseline (W0) in Periodic HbA1c Assessment
HbA1c assessment was performed par. with type 2 diabetes mellitus or HbA1c >=6.5% at Screening only. HbA1c levels were assessed at Baseline, W12 and W24. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0.
Measured: Baseline (W0) and up to W24
Number of Par. With Hematology Data of Potential Clinical Concern Any Time on Treatment
Haematology parameters were identified as of PCC (high [H], low [L]), if the values were out of the reference range (RR). The range for parameters was: platelet (100AV-500AV), red blood cell (RBC, 0.8-1.2), hemoglobin (L: female [F]:10, male [M]:11; H: F:16.5-AV, M:18), hematocrit (0.8-1.2), white blood cell (WBC, 3-15), neutrophils (0.75-1.5), lymphocytes (0.75-1.5), monocytes (0.75-2), eosinophils (none-2), basophils (none-2), mean corpuscle volume (MCV, 0.8-1.2), mean corpuscular hemoglobin (MCH, 0.8-1.2), mean corpuscular hemoglobin concentration (MCHC, 0.8-1.2), red cell distribution width (RDW, 0.8-1.2). Data for mean platelet volume (reference range not established) not reported
Measured: Up to W24
Number of Par. With Clinical Chemistry Values of Potential Clinical Concern Any Time on Treatment
Clinical chemistry parameters were identified as of PCC (H, L), if values were out of RR: Alanine aminotransferase (ALT, none-120 [250% upper limit of RR, ULRR]), Albumin (0.75-2), Aspartate aminotransferase (AST,none-105 (3-64y), 137.5 (65+y), >250%ULRR), Alkaline phosphatase (ALP,none-312.5 (20+y), >250%ULRR), blood urea nitrogen (BUN)/Creatinine ratio (none-1.25), BUN (none-11), Chloride (80-115), Calcium (0.75-1.25), Carbon dioxide (CO2, 15-40) content, Creatinine (22, <50% lower limit of RR [LLRR]-155, >125%ULRR), Creatine phosphokinase (CPK, none-1.25), Gamma glutamyl transferase (GGT,none-2.5), Glucose (3.6-7.8), High density lipoprotein (HDL,0.65-none), Lactate dehydrogenase (LDH,none-1.25), Low density lipoprotein (LDL,none-2), Magnesium (0.5-2), Potassium (3-5.5), Phosphorus inorganic (0.5-1.5), Sodium (130-150), Total protein (0.8-1.5), Total cholesterol (none-1.25), Total bilirubin (none-1.95), Triglycerides (none-9). Data for Creatinine clearance not reported.
Measured: Up to W24
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Jan 2007 (estimated)
- Study start27 Feb 2007
- Primary completion1 Sep 2008
- Study completion5 Sep 2008
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Alzheimer's DiseaseStudies of the same condition, open and under way.
- More trials run by GlaxoSmithKlineThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 862 participants (actual)
Sponsor and investigators
- Lead sponsor
- GlaxoSmithKline
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- GSK Clinical Trials, Study director, GlaxoSmithKline
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00428090
- Sponsor's protocol ID
- 105640
- Status last verified
- Apr 2017
- First submitted
- 25 Jan 2007
- Last updated
- 19 May 2017
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- Individual data sharing
- Yes: Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.
Publications
Gold M, Alderton C, Zvartau-Hind M, Egginton S, Saunders AM, Irizarry M, Craft S, Landreth G, Linnamagi U, Sawchak S. Rosiglitazone monotherapy in mild-to-moderate Alzheimer's disease: results from a randomized, double-blind, placebo-controlled phase III study. Dement Geriatr Cogn Disord. 2010;30(2):131-46. doi: 10.1159/000318845. Epub 2010 Aug 21.
PubMed 20733306
Study at a glance
From the registry record, last updated by the sponsor on 19 May 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A 24-week, Double-blind, Double-dummy, Randomized, Parallel-group Study to Investigate the Effects of Rosiglitazone (Extended Release Tablets), Donepezil, and Placebo as Monotherapy on Cognition and Overall Clinical Response in APOE ε4-stratified Subjects With Mild to Moderate Alzheimer's Disease. (REFLECT-1)
- ClinicalTrials.gov ID
- NCT00428090
- Acronym / sponsor ID
- 105640
- Conditions
- Alzheimer's Disease
- Keywords
- apolipoprotein E, monotherapy, cognition, mild, rosiglitazone, Alzheimer's disease, moderate
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 862 participants (actual)
- Lead sponsor
- GlaxoSmithKlineIndustry (pharma, biotech, devices)
- Study start
- 27 Feb 2007
- Primary completion
- 1 Sep 2008 (actual)
- Study completion
- 5 Sep 2008 (actual)
- First posted
- 29 Jan 2007 (estimated)
- Results
- Posted 19 May 2017
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Rosiglitazone (RSG) has been tested and is approved as a treatment for type II diabetes mellitus, a disease that occurs when the body ineffectively uses glucose. RSG XR, the investigational drug, is an extended-release form of RSG. This study tests whether RSG XR safely provides benefit to people with mild to moderate Alzheimer's disease (AD). RSG XR is a new approach to AD therapy and this study tests whether one's genes alter the effectiveness of RSG XR. Glucose is used by cells to make energy that they need to live. Changes in the ability of cells to use of glucose can lead to diseases like diabetes. Glucose levels may be lower in the brains of AD patients, and their brain cells may also use glucose less well than in unaffected people. The proper function of brain cells may be critical to memory and thought. If brain cells use glucose poorly, this might impact AD. Drugs that help brain cells properly use glucose may help a person maintain normal memory and thinking. Data suggesting that RSG may help AD patients was first seen in a small study at the Univ. of Washington and then from a larger international GSK study. In the first study, those receiving RSG once daily for 6 months scored better on 3 tests of memory and thought than those who did not receive RSG. In the GSK study, those that benefited most from therapy with RSG XR had a specific genetic pattern. They lacked the gene that caused them to produce apolipoprotein E e4 (APOE e4). Subjects who have the APOE e4 gene may have two copies, one from each parent, or they may have only one APOE e4 gene meaning that they inherited either the APOE e2 or APOE e3 version of the gene from one parent. Subjects with one copy of the APOE e4 gene remained fairly stable while those with two copies of APOE e4 continued to worsen during the 6-month treatment. This study will directly test the effect of RSG XR on people who either have or lack the APOE e4 gene.
Detailed description
A 24-week, double-blind, double-dummy, randomized, parallel-group study to investigate the effects of rosiglitazone (extended release tablets), donepezil, and placebo as monotherapy on cognition and overall clinical response in APOE e4-stratified subjects with mild to moderate Alzheimer's disease. (REFLECT-1)
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Rosiglitazone | Experimental | Drug: RosiglitazoneXR (extended release) oral tablets |
| Placebo | Other | Drug: RosiglitazonePlacebo (Double-Dummy to Match) |
Who may qualify
- Ages
- 50 to 90 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Clinical diagnosis of probable Alzheimer's Disease (AD).
- MMSE score 10 to 23
- Has not taken an approved AD therapy in last 30 days.
- No previous hypersensitivity/intolerance to AChEIs
- Have a regular caregiver.
Key exclusion criteria (5 listed)
- Diagnosis of vascular dementia.
- Type I or secondary diabetes mellitus.
- Type II diabetes mellitus treated with insulin, sulfonylurea or glipizide.
- History or evidence of congestive heart failure, clinically significant peripheral edema or anemia.
- History of significant psychiatric illness, major depressive disorder or current depression needing initiation of treatment.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| RosiglitazoneXR (extended release) oral tablets | Drug | Placebo, Rosiglitazone |
Primary outcome
Change From Baseline (W0) in Mean ADAS-Cog Total Score at W24 as a Function of APOE e4 Status in Apolipoprotein epsilon4 (APOE e4) Negative Cohort
Time frame: Baseline (W0) and W24
The 11-item ADAS-Cog assessed a range of cognitive abilities including memory, comprehension, orientation in time and place and spontaneous speech. Items were evaluated by tests and clinician ratings on a 5-point scale. Scores ranged from 0-70 with higher scores indicates more dysfunction. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline is defined as value at W0. Estimated value was calculated by Active treatment minus Placebo. The adjusted means were presented. A hierarchical testing procedure was used to control for the two rosiglitazone dose groups and the three genetic subgroups. There was no adjustment for the donepezil versus placebo comparisons, which were included to assess the sensitivity of the trial to detect a treatment effect.
Change From Baseline (W0) in Mean ADAS-Cog Total Score at W24 as a Function of APOE e4 Status in All Except e4/e4's Cohort
Time frame: Baseline (W0) and W24
The 11-item ADAS-Cog assessed a range of cognitive abilities including memory, comprehension, orientation in time and place and spontaneous speech. Items were evaluated by tests and clinician ratings on a 5-point scale. Scores ranged from 0-70 with higher scores indicates more dysfunction. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline is defined as value at W0. Estimated value was calculated by Active treatment minus Placebo. A hierarchical testing procedure was used to control for the two rosiglitazone dose groups and the three genetic subgroups. There was no adjustment for the donepezil versus placebo comparisons, which were included to assess the sensitivity of the trial to detect a treatment effect.
Change From Baseline (W0) in Mean ADAS-Cog Total Score at W24 as a Function of APOE e4 Status in Full Population Cohort
Time frame: Baseline (W0) and W24
The 11-item ADAS-Cog assessed a range of cognitive abilities including memory, comprehension, orientation in time and place and spontaneous speech. Items were evaluated by tests and clinician ratings on a 5-point scale. Scores ranged from 0-70 with higher scores indicates more dysfunction. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline is defined as value at W0. Estimated value was calculated by Active treatment minus Placebo. A hierarchical testing procedure was used to control for the two rosiglitazone dose groups and the three genetic subgroups. There was no adjustment for the donepezil versus placebo comparisons, which were included to assess the sensitivity of the trial to detect a treatment effect.
Change From Baseline (W0) in Mean CIBIC+ Global Functioning Total Score at W24 as a Function of APOE e4 Status in APOE4 Negative Cohort
Time frame: Baseline (W0) and W24
The CIBIC+ assessment comprised of a 7-point rating of severity (at baseline) and change (at indicated time points). It was rated on a scale of 1 to 7 as 1: markedly improved, 2.: moderately improved, 3: minimally improved, 4: no change, 5: minimally worse, 6: moderately worse and 7: markedly worse; higher score means greater dysfunction. It was based on interviews with the par. and caregiver by an independent rater. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0. Endpoint treatment differences which were adjusted to take account of missing data are derived. Estimated value was calculated by Active treatment minus Placebo. A hierarchical testing procedure was used to control for the two rosiglitazone dose groups and the three genetic subgroups. There was no adjustment for the donepezil versus placebo comparisons, which were included to assess the sensitivity of the trial to detect a treatment effect.
Change From Baseline (W0) in Mean CIBIC+ Global Functioning Total Score at W24 as a Function of APOE e4 Status in All Except e4/e4's Cohort
Time frame: Baseline (W0) and W24
The CIBIC+ assessment comprised of a 7-point rating of severity (at baseline) and change (at indicated time points). It was rated on a scale of 1 to 7 as 1: markedly improved, 2.: moderately improved, 3: minimally improved, 4: no change, 5: minimally worse, 6: moderately worse and 7: markedly worse; higher score means greater dysfunction. It was based on interviews with the par. and caregiver by an independent rater. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0. Endpoint treatment differences which were adjusted to take account of missing data are derived. Estimated value was calculated by Active treatment minus Placebo. A hierarchical testing procedure was used to control for the two rosiglitazone dose groups and the three genetic subgroups. There was no adjustment for the donepezil versus placebo comparisons, which were included to assess the sensitivity of the trial to detect a treatment effect.
Change From Baseline (W0) in Mean CIBIC+ Global Functioning Total Score at W24 as a Function of APOE e4 Status in Full Population Cohort
Time frame: Baseline (W0) and W24
The CIBIC+ assessment comprised of a 7-point rating of severity (at baseline) and change (at indicated time points). It was rated on a scale of 1 to 7 as 1: markedly improved, 2.: moderately improved, 3: minimally improved, 4: no change, 5: minimally worse, 6: moderately worse and 7: markedly worse; higher score means greater dysfunction. It was based on interviews with the par. and caregiver by an independent rater. Change from Baseline was calculated as value at scheduled time point minus Baseline value. Baseline was defined as value at W0. Endpoint treatment differences which were adjusted to take account of missing data are derived. Estimated value was calculated by Active treatment minus Placebo. A hierarchical testing procedure was used to control for the two rosiglitazone dose groups and the three genetic subgroups. There was no adjustment for the donepezil versus placebo comparisons, which were included to assess the sensitivity of the trial to detect a treatment effect.
21 secondary outcomes
Change From Baseline (W0) in Mean ADAS-Cog Total Score at W8, W16, W24
Time frame: Baseline (W0) and up to W24
Change From Baseline (W0) in Mean CIBIC+ Global Functioning Total Score at W8, W16, W24
Time frame: Baseline (W0) and up to W24
Change From Baseline (W0) in Mean Neuropsychiatric Inventory (NPI) Total Score at W8, W16, W24
Time frame: Baseline (W0) and up to W24
Change From Baseline (W0) in Mean Disability Assessment for Dementia (DAD) Scale Total Score at W8, W16, W24
Time frame: Baseline (W0) and up to W24
Change From Baseline (W0) in Mean Short Term Memory Assessment Total Score (ADAS-Cog Q1 Plus Q7) at W8, W16, W24
Time frame: Baseline (W0) and up to W24
Change From Baseline (W0) in Mean European Quality of Life -5 Dimensions Proxy Version (EQ-5D Proxy) Total Score at W12, W24 Assessed by Utility
Time frame: Baseline (W0) and up to W24
Change From Baseline (W0) in Mean European Quality of Life -5 Dimensions Proxy Version (EQ-5D Proxy) Total Score at W12, W24 Assessed by Thermometer (Visual Analog Scale [VAS])
Time frame: Baseline (W0) and up to W24
Time Spent Caring for Basic and Instrumental Activities Resource Utilization in Dementia (RUD) Scale at W12 and W24
Time frame: Baseline (W0) and up to W24
Change From Baseline (W0) in Alzheimer's Carer's Quality of Life Instrument (ACQLI) Score at W12 and W24.
Time frame: Baseline (W0) and up to W24
Change From Baseline (W0) in Mini Mental State Examination (MMSE) Total Score at W24.
Time frame: Baseline (W0) and W24
Change From Baseline (W0) in Glycosylated Hemoglobin (HbA1c) at W24.
Time frame: Baseline (W0) and W24
Number of Participants With Adverse Events Defined by Severity
Time frame: Up to W24
Number of Participants With Systolic and Diastolic Blood Pressure (SBP and DBP), Heart Rate (HR) and Weight Values of Potential Clinical Concern (PCC) Any Time on Treatment (ATOT).
Time frame: Up to W24
Change From Baseline (W0) in 12-lead Electrocardiogram (ECG)
Time frame: Baseline (W0) and up to W24
Change From Baseline (W0) in Heart Rate (HR) Measured From 12-lead Electrocardiogram (ECG)
Time frame: Baseline (W0) and up to W24
Change From Baseline (W0) in Body Weight
Time frame: Baseline (W0) and up to W24
Change From Baseline (W0) in Hemoglobin
Time frame: Baseline (W0) and up to W24
Change From Baseline (W0) in Hematocrit
Time frame: Baseline (W0) and Up to W24
Change From Baseline (W0) in Periodic HbA1c Assessment
Time frame: Baseline (W0) and up to W24
Number of Par. With Hematology Data of Potential Clinical Concern Any Time on Treatment
Time frame: Up to W24
Number of Par. With Clinical Chemistry Values of Potential Clinical Concern Any Time on Treatment
Time frame: Up to W24
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 19 May 2017.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 20733306Gold M, Alderton C, Zvartau-Hind M, Egginton S, Saunders AM, Irizarry M, Craft S, Landreth G, Linnamagi U, Sawchak S. Rosiglitazone monotherapy in mild-to-moderate Alzheimer's disease: results from a randomized, double-blind, placebo-controlled phase III study. Dement Geriatr Cogn Disord. 2010;30(2):131-46. doi: 10.1159/000318845. Epub 2010 Aug 21.
- Researchers can use this site to request access to anonymised patient level data and/or supporting documents from clinical studies to conduct further research.Link provided by the sponsor.
- Individual participant dataSharing planned: Yes. Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
GSK Clinical Trials study director
GlaxoSmithKline
138 sites in 20 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Rosiglitazone in people with Alzheimer's Disease, run by GlaxoSmithKline at 138 sites in 20 countries.
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 5 inclusion and 5 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: finished, as of the sponsor's last update on 19 May 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 138 sites in United States, Germany, Austria, China, Hungary and 15 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
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.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 19 May 2017). 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?
Change From Baseline (W0) in Mean ADAS-Cog Total Score at W24 as a Function of APOE e4 Status in Apolipoprotein epsilon4 (APOE e4) Negative Cohort (time frame: Baseline (W0) and W24). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00428090, which also lists 1 linked publication.
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 19 May 2017.