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NCT00381238

Open-Label Extension Assessing Long-Term Safety Of Rosiglitazone In Subjects With Mild To Moderate Alzheimer's Disease

Completed Phase 2 Results posted Last updated 23 May 2017
What this trial tests

Phase 2 trial testing rosiglitazone in Alzheimer's Disease in 33 participants. Completed in 3 February 2009.

Timeline
20 June 2006
Primary endpoint
1 February 2009
3 February 2009

Quick facts

Lead sponsorGlaxoSmithKline
PhasePhase 2
StatusCompleted
Study typeINTERVENTIONAL
Allocationnon randomized
Designsingle group
Maskingnone
Primary purposetreatment
Enrollment33
Start date20 June 2006
Primary completion1 February 2009
Estimated completion3 February 2009
Sites7 locations across Canada, United States

Drugs / interventions tested

Conditions studied

Sponsor

GlaxoSmithKline — full company profile →

Who can join

Adults 50 to 85, any sex, with Alzheimer's Disease. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Number of Participants With Adverse Events (AE's) Primary · From start of study medication (Wk 0) to Wk 50

An AE was defined as any untoward medical occurrence or clinical investigation in a participant, temporally associated with the use of a medicinal product, whether or not, considered related to the medicinal product. For marketed medicinal products, this also included failure to produce expected benefits (i.e. lack of efficacy), abuse or misuse. The number of participants with all AEs, drug related AEs, serious adverse events (SAEs), AE leading to permanent (prm) discontinuation (disc) of study drug or withdrawal were reported.

All AEs
GroupValue95% CI
RSG XR, 8 mg25
SAEs
GroupValue95% CI
RSG XR, 8 mg2
Drug related AEs
GroupValue95% CI
RSG XR, 8 mg8
AE leading to prm disc of study drug or withdrawal
GroupValue95% CI
RSG XR, 8 mg3
Mean Change From Baseline in Mini Mental State Examination (MMSE) Total Score Secondary · From baseline to Wk 48

The MMSE, is a score scale which consists of 11 tests of orientation (to time and place), memory (recent and immediate), concentration, language and praxis. The scoring ranged from 0 to 30, with lower scores indicative of greater cognitive impairment (more severe disease) and higher scores indicative less cognitive impairment (less severe disease). The total score was calculated by summing the scores from each of the tests. The investigator questioned the participants individually with set of questions and scored the participant, based on his performance. The baseline was defined as Wk 0. The

GroupValue95% CI
RSG XR, 8 mg-4.5± 4.07
Number of Participants With SAEs Secondary · From start of study medication (Wk 0) to Wk 50

An SAE, is any untoward medical occurrence, that at any dose may result in death, is life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in disability or incapacity, is congenital anomaly or birth defect, and medically important events. The number of participants with any SAE, were reported.

GroupValue95% CI
RSG XR, 8 mg2
Number of Participants With AE of Peripheral Edema by Grade Secondary · Up to Wk 50

Participants with AE of peripheral edema were evaluated. The test was performed by firmly pressing the thumb anterior to the participants ankle until further pressure produced no greater indentation. The depth of the pit was estimated and it was graded using below 5 point scale; where estimated depth of indentation corresponded to a particular grade (G). G 0 as depth of \<1 millimeter (mm); G1 as depth of 1-2 mm; G2 as depth of 3-5 mm; G3 as depth of 6-10 mm; and G4 as depth of \> 10 mm. The data for only the participants who had peripheral edema on more than one visit, then their most severe

Participants with G0 peripheral edema
GroupValue95% CI
RSG XR, 8 mg28
Participants with G1 peripheral edema
GroupValue95% CI
RSG XR, 8 mg3
Participants with G2 peripheral edema
GroupValue95% CI
RSG XR, 8 mg2
Mean Change From Baseline in Vital Signs- Systolic and Diastolic Blood Pressure Secondary · Baseline (Wk 0) to Wk 50

Participants systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured in mm of mercury (mmHg). These were collected after the participant sat quietly for at least five minutes. The change from baseline was calculated by subtracting the baseline values from the individual post-randomization values.

DBP, Wk 2
GroupValue95% CI
RSG XR, 8 mg-1.1± 8.31
SBP, Wk 2
GroupValue95% CI
RSG XR, 8 mg1.7± 14.56
DBP, Wk 4
GroupValue95% CI
RSG XR, 8 mg-1.8± 9.25
SBP, Wk 4
GroupValue95% CI
RSG XR, 8 mg-1.3± 12.91
DBP, Wk 8
GroupValue95% CI
RSG XR, 8 mg0.3± 8.19
SBP, Wk 8
GroupValue95% CI
RSG XR, 8 mg3.2± 12.96
DBP, Wk 16
GroupValue95% CI
RSG XR, 8 mg-2.0± 9.69
SBP, Wk 16
GroupValue95% CI
RSG XR, 8 mg-1.4± 13.94
Mean Change From Baseline in Vital Signs-heart Rate (HR) Secondary · Baseline (Wk 0) to Wk 50

The HR for the participant's, were collected after the participant sat quietly for at least five minutes. The change from baseline was calculated by subtracting the baseline values from the individual post-randomization values. The HR was measured in beats per minute (bpm).

HR, Wk 2
GroupValue95% CI
RSG XR, 8 mg1.8± 5.70
HR, Wk 4
GroupValue95% CI
RSG XR, 8 mg1.2± 10.20
HR, Wk 8
GroupValue95% CI
RSG XR, 8 mg1.0± 12.72
HR, Wk 16
GroupValue95% CI
RSG XR, 8 mg0.3± 12.53
HR, Wk 24
GroupValue95% CI
RSG XR, 8 mg1.5± 13.24
HR, Wk 32
GroupValue95% CI
RSG XR, 8 mg-0.2± 12.34
HR, Wk 40
GroupValue95% CI
RSG XR, 8 mg1.9± 15.29
HR, Wk 48
GroupValue95% CI
RSG XR, 8 mg0.1± 7.57
Number of Participants With Vital Signs of Clinical Concern. Secondary · Up to Wk 50

The data for number of participants with vital sign data, outside the range of potential clinical concern for SBP, DBP, HR and body weight were reported. The values as of potential clinical concern were 'both' outside of reference range or met a change from baseline criterion. The RR, for SBP was 90-140 mmHg for which the increase from baseline was reported to be \>= 40 mmHg and decrease from baseline reported as \>=30 mmHg; the RR for DBP was 50-90 mmHg for which the increase from baseline was reported to be \>= 30 mmHg and decrease from baseline reported as \>=20 mmHg; and the RR, for HR was

DBP >CCR, Wk 0
GroupValue95% CI
RSG XR, 8 mg1
DBP <CCR, Wk 4
GroupValue95% CI
RSG XR, 8 mg1
DBP >CCR, Wk 24
GroupValue95% CI
RSG XR, 8 mg1
DBP <CCR, Wk 48
GroupValue95% CI
RSG XR, 8 mg1
SBP >CCR, Wk 0
GroupValue95% CI
RSG XR, 8 mg4
SBP <CCR, Wk 0
GroupValue95% CI
RSG XR, 8 mg1
SBP >CCR, Wk 2
GroupValue95% CI
RSG XR, 8 mg5
SBP >CCR, Wk 4
GroupValue95% CI
RSG XR, 8 mg4
Mean Change From Baseline in Vital Signs- Weight Secondary · Baseline (Wk 0) to Wk 50

The weight for the participant, was measured without wearing shoes and with light clothing. There was no particular RR, reported for weight; however, the increase from baseline was reported to be \>=7 % and the decrease also reported as \>=7 %. The values as of potential clinical concern were 'both' outside of RR, or met a change from baseline criterion.

Weight, Wk 2
GroupValue95% CI
RSG XR, 8 mg-0.4± 1.42
Weight, Wk 4
GroupValue95% CI
RSG XR, 8 mg-0.0± 1.93
Weight, Wk 8
GroupValue95% CI
RSG XR, 8 mg0.3± 2.12
Weight, Wk 16
GroupValue95% CI
RSG XR, 8 mg0.2± 3.18
Weight, Wk 24
GroupValue95% CI
RSG XR, 8 mg0.3± 3.21
Weight, Wk 32
GroupValue95% CI
RSG XR, 8 mg0.3± 3.97
Weight, Wk 40
GroupValue95% CI
RSG XR, 8 mg0.4± 3.25
Weight, Wk 48
GroupValue95% CI
RSG XR, 8 mg0.0± 2.91
Number of Participants With Clinical Chemistry Parameters of Clinical Concern Secondary · Up to Wk 50

The data for participants for clinical parameters, with values only of potential clinical concern (PCI) were reported for creatine, creatinine kinase(CK), urea and glucose. Creatinine(unit: micromoles per litre) : low concern and high concern values were considered as 22 absolute value (AB) (\<50% lower limit of RR ) and 155 (AB) (\>125% upper limit of RR) respectively. CK (unit: international unit per litre ): low concern value and high concern values was none and 1.25 respectively. Glucose (unit: millimole per litre): low concern and high concern values were considered as 3.6 (AB) and 7.8 (A

CK, Wk 8, normal
GroupValue95% CI
RSG XR, 8 mg0
CK, Wk 8, high
GroupValue95% CI
RSG XR, 8 mg1
CK, Wk 16, normal
GroupValue95% CI
RSG XR, 8 mg0
CK, Wk 16, high
GroupValue95% CI
RSG XR, 8 mg1
CK, Wk 24, normal
GroupValue95% CI
RSG XR, 8 mg0
CK, Wk 24, high
GroupValue95% CI
RSG XR, 8 mg1
CK, Wk 32, normal
GroupValue95% CI
RSG XR, 8 mg0
CK, Wk 32, high
GroupValue95% CI
RSG XR, 8 mg1
Number of Participant's With Hematology Parameters of Clinical Concern Secondary · Up to Wk 50

Participant data for clinical concern hematology parameters, were reported for hematocrit (Hct) (unit:1): low concern (LC) and high concern (HC) values as 0.8 and 1.2 respectively, hemoglobin (Hb) (unit: gram per deciliter): LC and HC values as value for female (F) 10 (AB) , value for male (M) 11; and value for F 16.5 (AB), value for M 18 respectively; lymphocytes absolute(LA) (unit: giga cells per litre \[GI/L\]) : LC and HC value as 0.75 and 1.5 respectively; monocytes absolute (MA) (unit: GI/L) LC and HC value as 0.75 and 2 respectively, platelet count (PC) (unit: x103/mm3): LC and HC value

Hct, Wk 32, normal
GroupValue95% CI
RSG XR, 8 mg0
Hct, Wk 32, high
GroupValue95% CI
RSG XR, 8 mg0
Hct, Wk 32, low
GroupValue95% CI
RSG XR, 8 mg1
Hb, Wk 8, normal
GroupValue95% CI
RSG XR, 8 mg0
Hb, Wk 8, high
GroupValue95% CI
RSG XR, 8 mg0
Hb, Wk 8, low
GroupValue95% CI
RSG XR, 8 mg1
Hb, Wk 24, normal
GroupValue95% CI
RSG XR, 8 mg0
Hb, Wk 24, high
GroupValue95% CI
RSG XR, 8 mg0

Adverse events — posted to ClinicalTrials.gov

Time frame: From start of study medication (Wk 0) to Wk 50. Reporting threshold: 5%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

RSG XR, 8 MG
Serious: 2/33 (6%)
Deaths: 0/33

Serious adverse events (3 terms)

ReactionSystemRSG XR, 8 MG
FallInjury, poisoning and procedural complications
Pelvic fractureInjury, poisoning and procedural complications
ConvulsionNervous system disorders
Other adverse events (5 terms — click to expand)

ReactionSystemRSG XR, 8 MG
Oedema peripheralGeneral disorders
BursitisMusculoskeletal and connective tissue disorders
FallInjury, poisoning and procedural complications
HaematomaVascular disorders
VomitingGastrointestinal disorders

Most-reported serious reactions: Fall, Pelvic fracture, Convulsion.

Data from ClinicalTrials.gov NCT00381238 adverse events section.

Sponsor's own description

This is an open-label extension to study 49653/461, to assess the long-term safety of rosiglitazone (extended release tablets) in subjects with mild to moderate Alzheimer's Disease.

Publications & conference data

4 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Exploration and Development of PPAR Modulators in Health and Disease: An Update of Clinical Evidence.
    Cheng HS, Tan WR, Low ZS, Marvalim C, et al · · 2019 · cited 196× · PMID 31614690 · DOI 10.3390/ijms20205055
  2. PPARγ/PGC1α signaling as a potential therapeutic target for mitochondrial biogenesis in neurodegenerative disorders.
    Jamwal S, Blackburn JK, Elsworth JD. · · 2021 · cited 189× · PMID 33039420 · DOI 10.1016/j.pharmthera.2020.107705
  3. Sulfur-containing therapeutics in the treatment of Alzheimer's disease.
    Zhu H, Dronamraju V, Xie W, More SS. · · 2021 · cited 25× · PMID 33613018 · DOI 10.1007/s00044-020-02687-1
  4. Exercise mimetics: molecular mechanisms, biological and therapeutic effects.
    Zhang J, Shao Q, Cheng T, Lin J, et al · · 2026 · PMID 42234316 · DOI 10.1186/s43556-026-00483-8

Verify or expand the search:

Other trials of rosiglitazone

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Trials by the same sponsor.

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Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT00381238.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing