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A Study to Assess the Cognitive Effects of Fesoterodine in Elderly Subjects

A 4 Way Placebo And Active Controlled Study To Evaluate The Effects Of Fesoterodine On Cognitive Function In Healthy Elderly Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01161472
Enrollment
20
Registered
2010-07-13
Start date
2010-07-31
Completion date
2010-09-30
Last updated
2012-06-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Brief summary

The study is designed to evaluate elements of cognitive function in subjects receiving either fesoterodine or alprazolam.

Detailed description

Evaluation of cognitive function

Interventions

DRUG4mg fesoterodine

4mg tablet once daily for 6 days

DRUG8mg fesoterodine

4mg tablet once daily for 3 days followed by 8mg tablet once daily for 3 days

1mg tablet once on last day of treatment period at clinic

DRUGPlacebo

Placebo tablet for fesoterodine once daily for 6 days and placebo tablet for alprazolam once on last day of treatment period at clinic

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
65 Years to 85 Years
Healthy volunteers
Yes

Inclusion criteria

* Adult healthy volunteers 65 years and over with minimum MMSE of 26

Exclusion criteria

* Prohibited concomitant medications * Confounding medical conditions * Clinically significant comorbid diseases * Hypersensitivity or contraindications to fesoterodine or active control

Design outcomes

Primary

MeasureTime frameDescription
Computer Based Objective Cognition Testing (CogState) Detection SpeedBaselineDetection speed: a cognitive test which assessed psychomotor function. A playing card was presented face up in the center of the screen. As soon as this happened, the participant was to press the 'Yes' key. The outcome measure was speed of performance; mean of the log10 transformed reaction time for correct responses \[measured in log10 milliseconds (MS)\]. Lower scores meant a better performance.
Change From Baseline in Computer Based Objective Cognition Testing (CogState) Detection Speed on Day 6Baseline and Day 6Detection speed: a cognitive test which assessed psychomotor function. A playing card was presented face up in the center of the screen. As soon as this happened, the participant was to press the 'Yes' key. The outcome measure was speed of performance; mean of the log10 transformed reaction time for correct responses \[measured in log10 milliseconds (MS)\]. Lower scores meant a better performance.

Secondary

MeasureTime frameDescription
CogState One Card LearningBaselineOne card learning: a cognitive test which assessed visual learning. Participants were to remember which cards were previously shown in a task. The outcome measure was accuracy of performance; arcsine transformation of the square root (sqrt) of the proportion of correct responses. Higher scores meant a better performance.
Change From Baseline in CogState One Card Learning on Day 6Baseline and Day 6One card learning: a cognitive test which assessed visual learning. Participants were to remember which cards were previously shown in a task. The outcome measure was accuracy of performance; arcsine transformation of the square root (sqrt) of the proportion of correct responses. Higher scores meant a better performance.
Change From Baseline in CogState CPAL on Day 6Baseline and Day 6CPAL: a cognitive test which assessed visual episodic learning. Participant was to learn and remember picture locations on the screen and was to tap the target on the central location to begin. As each picture was revealed, the participant was to remember where the picture was located and tap that location. The outcome measure was the number of errors made in correctly placing each of the 4 patterns in their location 4 times. Lower scores meant a better performance.
CogState Continuous Paired Associate Learning (CPAL)BaselineCPAL: a cognitive test which assessed visual episodic learning. Participant was to learn and remember picture locations on the screen and was to tap the target on the central location to begin. As each picture was revealed, the participant was to remember where the picture was located and tap that location. The outcome measure was the number of errors made in correctly placing each of the 4 patterns in their location 4 times. Lower scores meant a better performance.
CogState Identification SpeedBaselineIdentification speed: a cognitive test which assessed visual attention. A playing card was presented face up in the center of the screen. As soon as this happened, the participant had to decide whether the card was red or not. The outcome measure was speed of performance; mean of the log10 transformed reaction time for correct responses (measured in log10 MS). Lower scores meant a better performance.
Change From Baseline in CogState Groton Maze Learning Task on Day 6Baseline and Day 6GMLT: a cognitive test which assessed executive function. Participant was shown a 10 x 10 grid of tiles on a computer touch screen. A 28-step pathway was hidden among 100 possible locations. The participant was instructed to move 1 step from the start location and then continue 1 tile at a time, toward the end to find the pathway. The outcome measure was total number of errors made in attempting to learn the same hidden pathway on 5 consecutive trials at a single session. Lower scores meant a better performance.
Rey Auditory Verbal Learning Test (RAVLT)BaselineRAVLT evaluates a wide diversity of functions: short-term auditory-verbal memory, rate of learning, learning strategies, retroactive, and proactive interference, presence of confabulation of confusion in memory processes, retention of information, and differences between learning and retrieval. Assessment of RAVLT is between 10 to 15 minutes; Performance variable: the sum of the number of words recalled successfully on the delayed recall trial. Higher score meant a better performance.
Rey Auditory Verbal Learning Test (RAVLT) on Day 6Baseline and Day 6RAVLT evaluates a wide diversity of functions: short-term auditory-verbal memory, rate of learning, learning strategies, retroactive, and proactive interference, presence of confabulation of confusion in memory processes, retention of information, and differences between learning and retrieval. Assessment of RAVLT is between 10 to 15 minutes; Performance variable: the sum of the number of words recalled successfully on the delayed recall trial. Higher score meant a better performance.
CogState Groton Maze Learning Task (GMLT)BaselineGMLT: a cognitive test which assessed executive function. Participant was shown a 10 x 10 grid of tiles on a computer touch screen. A 28-step pathway was hidden among 100 possible locations. The participant was instructed to move 1 step from the start location and then continue 1 tile at a time, toward the end to find the pathway. The outcome measure was total number of errors made in attempting to learn the same hidden pathway on 5 consecutive trials at a single session. Lower scores meant a better performance.
Change From Baseline in CogState Identification Speed on Day 6Baseline and Day 6Identification speed: a cognitive test which assessed visual attention. A playing card was presented face up in the center of the screen. As soon as this happened, the participant had to decide whether the card was red or not. The outcome measure was speed of performance; mean of the log10 transformed reaction time for correct responses (measured in log10 MS). Lower scores meant a better performance.

Countries

United States

Participant flow

Participants by arm

ArmCount
Entire Study Population
All participants randomized to any treatment (fesoterodine 4 mg tablet first, fesoterodine 8 mg tablet first, alprazolam 1 mg capsule first and placebo first).
20
Total20

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Washout Period (At Least 3 to 6 Days)Withdrawal by Subject1000

Baseline characteristics

CharacteristicEntire Study Population
Age Continuous72.2 Years
STANDARD_DEVIATION 5.2
Sex: Female, Male
Female
8 Participants
Sex: Female, Male
Male
12 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
6 / 2011 / 1918 / 197 / 20
serious
Total, serious adverse events
0 / 200 / 190 / 190 / 20

Outcome results

Primary

Change From Baseline in Computer Based Objective Cognition Testing (CogState) Detection Speed on Day 6

Detection speed: a cognitive test which assessed psychomotor function. A playing card was presented face up in the center of the screen. As soon as this happened, the participant was to press the 'Yes' key. The outcome measure was speed of performance; mean of the log10 transformed reaction time for correct responses \[measured in log10 milliseconds (MS)\]. Lower scores meant a better performance.

Time frame: Baseline and Day 6

Population: The PP Analysis Set included all randomized participants who completed the study, received treatment in all 4 study periods until the end of treatment visit in the fourth study period and who were not serious protocol violators. 'N' (Number of participants analyzed) signifies participants evaluable for the outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Fesoterodine 4 mgChange From Baseline in Computer Based Objective Cognition Testing (CogState) Detection Speed on Day 6-0.0201 Log10 MSStandard Error 0.0153
Fesoterodine 8 mgChange From Baseline in Computer Based Objective Cognition Testing (CogState) Detection Speed on Day 6-0.0119 Log10 MSStandard Error 0.015
Aplrazolam 1 mgChange From Baseline in Computer Based Objective Cognition Testing (CogState) Detection Speed on Day 60.0684 Log10 MSStandard Error 0.015
PlaceboChange From Baseline in Computer Based Objective Cognition Testing (CogState) Detection Speed on Day 60.0084 Log10 MSStandard Error 0.0152
Comparison: Analysis of Covariance (ANCOVA) was used to determine p-value for comparison of fesoterodine 4 mg vs placebo, with model terms: period and treatment as the fixed effect, participants as the random effect, and between and within participant baselines as the covariates.p-value: 0.119895% CI: [-0.0647, 0.0077]ANCOVA
Comparison: ANCOVA was used to determine p-value for comparison of fesoterodine 8 mg vs placebo, with model terms: period and treatment as the fixed effect, participants as the random effect, and between and within participant baselines as the covariates.p-value: 0.245995% CI: [-0.0551, 0.0145]ANCOVA
Primary

Computer Based Objective Cognition Testing (CogState) Detection Speed

Detection speed: a cognitive test which assessed psychomotor function. A playing card was presented face up in the center of the screen. As soon as this happened, the participant was to press the 'Yes' key. The outcome measure was speed of performance; mean of the log10 transformed reaction time for correct responses \[measured in log10 milliseconds (MS)\]. Lower scores meant a better performance.

Time frame: Baseline

Population: The Per Protocol (PP) Analysis Set included all randomized participants who completed the study, received treatment in all 4 study periods until the end of treatment visit in the fourth study period and who were not serious protocol violators. 'N' (Number of participants analyzed) signifies participants evaluable for the outcome measure.

ArmMeasureValue (MEAN)Dispersion
Fesoterodine 4 mgComputer Based Objective Cognition Testing (CogState) Detection Speed2.6333 Log10 MSStandard Deviation 0.1049
Fesoterodine 8 mgComputer Based Objective Cognition Testing (CogState) Detection Speed2.5971 Log10 MSStandard Deviation 0.0937
Aplrazolam 1 mgComputer Based Objective Cognition Testing (CogState) Detection Speed2.6103 Log10 MSStandard Deviation 0.1107
PlaceboComputer Based Objective Cognition Testing (CogState) Detection Speed2.5842 Log10 MSStandard Deviation 0.0875
Secondary

Change From Baseline in CogState CPAL on Day 6

CPAL: a cognitive test which assessed visual episodic learning. Participant was to learn and remember picture locations on the screen and was to tap the target on the central location to begin. As each picture was revealed, the participant was to remember where the picture was located and tap that location. The outcome measure was the number of errors made in correctly placing each of the 4 patterns in their location 4 times. Lower scores meant a better performance.

Time frame: Baseline and Day 6

Population: The PP Analysis Set included all randomized participants who completed the study, received treatment in all 4 study periods until the end of treatment visit in the fourth study period and who were not serious protocol violators. 'N' (Number of participants analyzed) signifies participants evaluable for the outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Fesoterodine 4 mgChange From Baseline in CogState CPAL on Day 66.7933 ErrorsStandard Error 9.8653
Fesoterodine 8 mgChange From Baseline in CogState CPAL on Day 6-16.7905 ErrorsStandard Error 9.8715
Aplrazolam 1 mgChange From Baseline in CogState CPAL on Day 658.2002 ErrorsStandard Error 10.0337
PlaceboChange From Baseline in CogState CPAL on Day 63.1304 ErrorsStandard Error 9.9948
Comparison: ANCOVA was used to determine p-value for comparison of fesoterodine 4 mg vs placebo, with model terms: period and treatment as the fixed effect, participants as the random effect, and between and within participant baselines as the covariates.p-value: 0.770795% CI: [-21.4729, 28.7987]ANCOVA
Comparison: ANCOVA was used to determine p-value for comparison of fesoterodine 8 mg vs placebo, with model terms: period and treatment as the fixed effect, participants as the random effect, and between and within participant baselines as the covariates.p-value: 0.116295% CI: [-44.9634, 5.1215]ANCOVA
Secondary

Change From Baseline in CogState Groton Maze Learning Task on Day 6

GMLT: a cognitive test which assessed executive function. Participant was shown a 10 x 10 grid of tiles on a computer touch screen. A 28-step pathway was hidden among 100 possible locations. The participant was instructed to move 1 step from the start location and then continue 1 tile at a time, toward the end to find the pathway. The outcome measure was total number of errors made in attempting to learn the same hidden pathway on 5 consecutive trials at a single session. Lower scores meant a better performance.

Time frame: Baseline and Day 6

Population: The PP Analysis Set included all randomized participants who completed the study, received treatment in all 4 study periods until the end of treatment visit in the fourth study period and who were not serious protocol violators. 'N' (Number of participants analyzed) signifies participants evaluable for the outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Fesoterodine 4 mgChange From Baseline in CogState Groton Maze Learning Task on Day 6-4.1399 ErrorsStandard Error 4.2079
Fesoterodine 8 mgChange From Baseline in CogState Groton Maze Learning Task on Day 6-5.7717 ErrorsStandard Error 4.2515
Aplrazolam 1 mgChange From Baseline in CogState Groton Maze Learning Task on Day 624.7115 ErrorsStandard Error 4.2033
PlaceboChange From Baseline in CogState Groton Maze Learning Task on Day 6-4.1467 ErrorsStandard Error 4.2413
Comparison: ANCOVA was used to determine p-value for comparison of fesoterodine 4 mg vs placebo, with model terms: period and treatment as the fixed effect, participants as the random effect, and between and within participant baselines as the covariates.p-value: 0.998995% CI: [-9.8297, 9.8433]ANCOVA
Comparison: ANCOVA was used to determine p-value for comparison of fesoterodine 4 mg vs placebo, with model terms: period and treatment as the fixed effect, participants as the random effect, and between and within participant baselines as the covariates.p-value: 0.748595% CI: [-11.7926, 8.5425]ANCOVA
Secondary

Change From Baseline in CogState Identification Speed on Day 6

Identification speed: a cognitive test which assessed visual attention. A playing card was presented face up in the center of the screen. As soon as this happened, the participant had to decide whether the card was red or not. The outcome measure was speed of performance; mean of the log10 transformed reaction time for correct responses (measured in log10 MS). Lower scores meant a better performance.

Time frame: Baseline and Day 6

Population: The PP Analysis Set included all randomized participants who completed the study, received treatment in all 4 study periods until the end of treatment visit in the fourth study period and who were not serious protocol violators. 'N' (Number of participants analyzed) signifies participants evaluable for the outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Fesoterodine 4 mgChange From Baseline in CogState Identification Speed on Day 60.0105 Log10 MSStandard Error 0.0084
Fesoterodine 8 mgChange From Baseline in CogState Identification Speed on Day 60.0057 Log10 MSStandard Error 0.0085
Aplrazolam 1 mgChange From Baseline in CogState Identification Speed on Day 60.0817 Log10 MSStandard Error 0.0084
PlaceboChange From Baseline in CogState Identification Speed on Day 60.0142 Log10 MSStandard Error 0.0085
Comparison: ANCOVA was used to determine p-value for comparison of fesoterodine 4 mg vs placebo, with model terms: period and treatment as the fixed effect, participants as the random effect, and between and within participant baselines as the covariates.p-value: 0.750295% CI: [-0.0268, 0.0194]ANCOVA
Comparison: ANCOVA was used to determine p-value for comparison of fesoterodine 8 mg vs placebo, with model terms: period and treatment as the fixed effect, participants as the random effect, and between and within participant baselines as the covariates.p-value: 0.478595% CI: [-0.0325, 0.0154]ANCOVA
Secondary

Change From Baseline in CogState One Card Learning on Day 6

One card learning: a cognitive test which assessed visual learning. Participants were to remember which cards were previously shown in a task. The outcome measure was accuracy of performance; arcsine transformation of the square root (sqrt) of the proportion of correct responses. Higher scores meant a better performance.

Time frame: Baseline and Day 6

Population: The PP Analysis Set included all randomized participants who completed the study, received treatment in all 4 study periods until the end of treatment visit in the fourth study period and who were not serious protocol violators. 'N' (Number of participants analyzed) signifies participants evaluable for the outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Fesoterodine 4 mgChange From Baseline in CogState One Card Learning on Day 6-0.0094 Arcsine [(sqrt) proportion correct]Standard Error 0.0204
Fesoterodine 8 mgChange From Baseline in CogState One Card Learning on Day 60.0151 Arcsine [(sqrt) proportion correct]Standard Error 0.0203
Aplrazolam 1 mgChange From Baseline in CogState One Card Learning on Day 6-0.0880 Arcsine [(sqrt) proportion correct]Standard Error 0.0204
PlaceboChange From Baseline in CogState One Card Learning on Day 6-0.0058 Arcsine [(sqrt) proportion correct]Standard Error 0.0205
Comparison: ANCOVA was used to determine p-value for comparison of fesoterodine 4 mg vs placebo, with model terms: period and treatment as the fixed effect, participants as the random effect, and between and within participant baselines as the covariates.p-value: 0.894495% CI: [-0.0569, 0.0498]ANCOVA
Comparison: ANCOVA was used to determine p-value for comparison of fesoterodine 8 mg vs placebo, with model terms: period and treatment as the fixed effect, participants as the random effect, and between and within participant baselines as the covariates.p-value: 0.430895% CI: [-0.032, 0.0738]ANCOVA
Secondary

CogState Continuous Paired Associate Learning (CPAL)

CPAL: a cognitive test which assessed visual episodic learning. Participant was to learn and remember picture locations on the screen and was to tap the target on the central location to begin. As each picture was revealed, the participant was to remember where the picture was located and tap that location. The outcome measure was the number of errors made in correctly placing each of the 4 patterns in their location 4 times. Lower scores meant a better performance.

Time frame: Baseline

Population: The PP Analysis Set included all randomized participants who completed the study, received treatment in all 4 study periods until the end of treatment visit in the fourth study period and who were not serious protocol violators. 'N' (Number of participants analyzed) signifies participants evaluable for the outcome measure.

ArmMeasureValue (MEAN)Dispersion
Fesoterodine 4 mgCogState Continuous Paired Associate Learning (CPAL)96.33 ErrorsStandard Deviation 57.058
Fesoterodine 8 mgCogState Continuous Paired Associate Learning (CPAL)99.83 ErrorsStandard Deviation 55.343
Aplrazolam 1 mgCogState Continuous Paired Associate Learning (CPAL)89.50 ErrorsStandard Deviation 58.24
PlaceboCogState Continuous Paired Associate Learning (CPAL)107.44 ErrorsStandard Deviation 53.388
Secondary

CogState Groton Maze Learning Task (GMLT)

GMLT: a cognitive test which assessed executive function. Participant was shown a 10 x 10 grid of tiles on a computer touch screen. A 28-step pathway was hidden among 100 possible locations. The participant was instructed to move 1 step from the start location and then continue 1 tile at a time, toward the end to find the pathway. The outcome measure was total number of errors made in attempting to learn the same hidden pathway on 5 consecutive trials at a single session. Lower scores meant a better performance.

Time frame: Baseline

Population: The PP Analysis Set included all randomized participants who completed the study, received treatment in all 4 study periods until the end of treatment visit in the fourth study period and who were not serious protocol violators. 'N' (Number of participants analyzed) signifies participants evaluable for the outcome measure.

ArmMeasureValue (MEAN)Dispersion
Fesoterodine 4 mgCogState Groton Maze Learning Task (GMLT)53.72 ErrorsStandard Deviation 17.091
Fesoterodine 8 mgCogState Groton Maze Learning Task (GMLT)58.39 ErrorsStandard Deviation 15.17
Aplrazolam 1 mgCogState Groton Maze Learning Task (GMLT)56.83 ErrorsStandard Deviation 15.023
PlaceboCogState Groton Maze Learning Task (GMLT)52.28 ErrorsStandard Deviation 15.736
Secondary

CogState Identification Speed

Identification speed: a cognitive test which assessed visual attention. A playing card was presented face up in the center of the screen. As soon as this happened, the participant had to decide whether the card was red or not. The outcome measure was speed of performance; mean of the log10 transformed reaction time for correct responses (measured in log10 MS). Lower scores meant a better performance.

Time frame: Baseline

Population: The PP Analysis Set included all randomized participants who completed the study, received treatment in all 4 study periods until the end of treatment visit in the fourth study period and who were not serious protocol violators. 'N' (Number of participants analyzed) signifies participants evaluable for the outcome measure.

ArmMeasureValue (MEAN)Dispersion
Fesoterodine 4 mgCogState Identification Speed2.7540 Log10 MSStandard Deviation 0.0505
Fesoterodine 8 mgCogState Identification Speed2.7672 Log10 MSStandard Deviation 0.061
Aplrazolam 1 mgCogState Identification Speed2.7577 Log10 MSStandard Deviation 0.0577
PlaceboCogState Identification Speed2.7457 Log10 MSStandard Deviation 0.0637
Secondary

CogState One Card Learning

One card learning: a cognitive test which assessed visual learning. Participants were to remember which cards were previously shown in a task. The outcome measure was accuracy of performance; arcsine transformation of the square root (sqrt) of the proportion of correct responses. Higher scores meant a better performance.

Time frame: Baseline

Population: The PP Analysis Set included all randomized participants who completed the study, received treatment in all 4 study periods until the end of treatment visit in the fourth study period and who were not serious protocol violators. 'N' (Number of participants analyzed) signifies participants evaluable for the outcome measure.

ArmMeasureValue (MEAN)Dispersion
Fesoterodine 4 mgCogState One Card Learning0.9585 Arcsine [(sqrt) proportion correct]Standard Deviation 0.0893
Fesoterodine 8 mgCogState One Card Learning0.9421 Arcsine [(sqrt) proportion correct]Standard Deviation 0.0878
Aplrazolam 1 mgCogState One Card Learning0.9531 Arcsine [(sqrt) proportion correct]Standard Deviation 0.1062
PlaceboCogState One Card Learning0.9302 Arcsine [(sqrt) proportion correct]Standard Deviation 0.0822
Secondary

Rey Auditory Verbal Learning Test (RAVLT)

RAVLT evaluates a wide diversity of functions: short-term auditory-verbal memory, rate of learning, learning strategies, retroactive, and proactive interference, presence of confabulation of confusion in memory processes, retention of information, and differences between learning and retrieval. Assessment of RAVLT is between 10 to 15 minutes; Performance variable: the sum of the number of words recalled successfully on the delayed recall trial. Higher score meant a better performance.

Time frame: Baseline

Population: The PP Analysis Set included all randomized participants who completed the study, received treatment in all 4 study periods until the end of treatment visit in the fourth study period and who were not serious protocol violators. 'N' (Number of participants analyzed) signifies participants evaluable for the outcome measure.

ArmMeasureValue (MEAN)Dispersion
Fesoterodine 4 mgRey Auditory Verbal Learning Test (RAVLT)6.50 Words RecalledStandard Deviation 3.884
Fesoterodine 8 mgRey Auditory Verbal Learning Test (RAVLT)6.67 Words RecalledStandard Deviation 3.63
Aplrazolam 1 mgRey Auditory Verbal Learning Test (RAVLT)7.22 Words RecalledStandard Deviation 3.687
PlaceboRey Auditory Verbal Learning Test (RAVLT)6.33 Words RecalledStandard Deviation 3.378
Secondary

Rey Auditory Verbal Learning Test (RAVLT) on Day 6

RAVLT evaluates a wide diversity of functions: short-term auditory-verbal memory, rate of learning, learning strategies, retroactive, and proactive interference, presence of confabulation of confusion in memory processes, retention of information, and differences between learning and retrieval. Assessment of RAVLT is between 10 to 15 minutes; Performance variable: the sum of the number of words recalled successfully on the delayed recall trial. Higher score meant a better performance.

Time frame: Baseline and Day 6

Population: The PP Analysis Set included all randomized participants who completed the study, received treatment in all 4 study periods until the end of treatment visit in the fourth study period and who were not serious protocol violators. 'N' (Number of participants analyzed) signifies participants evaluable for the outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Fesoterodine 4 mgRey Auditory Verbal Learning Test (RAVLT) on Day 60.1565 Words RecalledStandard Error 0.5825
Fesoterodine 8 mgRey Auditory Verbal Learning Test (RAVLT) on Day 6-0.1780 Words RecalledStandard Error 0.582
Aplrazolam 1 mgRey Auditory Verbal Learning Test (RAVLT) on Day 6-3.9222 Words RecalledStandard Error 0.589
PlaceboRey Auditory Verbal Learning Test (RAVLT) on Day 6-0.1119 Words RecalledStandard Error 0.5862
Comparison: ANCOVA was used to determine p-value for comparison of fesoterodine 4 mg vs placebo, with model terms: period and treatment as the fixed effect, participants as the random effect, and between and within participant baselines as the covariates.p-value: 0.745895% CI: [-1.3788, 1.9157]ANCOVA
Comparison: ANCOVA was used to determine p-value for comparison of fesoterodine 8 mg vs placebo, with model terms: period and treatment as the fixed effect, participants as the random effect, and between and within participant baselines as the covariates.p-value: 0.936695% CI: [-1.7202, 1.588]ANCOVA

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026