Clinical Trial Details
— Status: Active, not recruiting
Administrative data
NCT number |
NCT05415748 |
Other study ID # |
19-28557 |
Secondary ID |
K12DK111028 |
Status |
Active, not recruiting |
Phase |
Phase 4
|
First received |
|
Last updated |
|
Start date |
September 18, 2021 |
Est. completion date |
June 2022 |
Study information
Verified date |
June 2022 |
Source |
University of California, San Francisco |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Interventional
|
Clinical Trial Summary
This is a pilot 12-week randomized, placebo-controlled N-of-1 deprescribing trial among older
men receiving chronic tamsulosin therapy for lower urinary tract symptoms attributed to
benign prostatic hyperplasia.
Description:
The investigators will instruct participants to monitor and record their daily urinary
symptoms and medication side effects through Redcap surveys, accessible via smartphone.
Medication adherence, global urinary satisfaction questions, and health-related quality of
life will be assessed as baseline and at the end of the study.
Monitoring frequency: Participants will monitor their symptoms every day using the
PERSONAL-pilot study Redcap surveys. If the investigators notice a subject has been
unresponsive to daily symptom monitoring, the investigators will reach out to the subject and
offer any help we can provide. The investigators first attempt will be in the form of an
email, sent to the email address provided to send patients the surveys. If the investigators
do not receive a response, the investigators will follow up with a phone call to offer any
help or guidance. Email template and telephone script provided in other study documents of
the application.
N-of-1 Trial Procedures:
Participants will start with a 1-week open label period where participants will use the
PERSONAL Redcap surveys to track daily symptoms and side effects while not taking their
tamsulosin or any study pills. Based on the pharmacokinetics and expected timeframe of
symptomatic relief from tamsulosin (half-life=14 to 15 hours; steady state by the 5th day of
daily dosing), all N-of-1 trials will have a duration of 11 weeks during which participants
will complete 2 cycles consisting of a pair of 2-week treatment periods (taking tamsulosin or
placebo) separated by 1 week of wash-out on placebo. The order of treatment periods within a
cycle will be random (e.g. ABAB, BABA, ABBA, or BAAB) according to pre-filled bubble packs
given to participants during their orientation visit.
Participants will receive a placebo during wash-out periods between treatment periods and
cycles, but the participants will be unaware of the order or duration of treatment periods or
cycles to prevent self-correlating symptoms to specific treatments.
The PERSONAL Redcap will present participants with a daily questionnaire, accessible via
smartphone, to track their lower urinary tract symptoms and medication side effects. All
participants will also be presented a global urinary symptom bother question. At the end of
each week, participants will receive additional medication adherence and treatment
satisfaction questionnaires administered via the PERSONAL app as well as motivational
messages summarizing their progress in the trial.
Participants will view a graphical representation of their responses summarized in
chronological order for the prior day, week, or month. To maximize adherence to daily
questionnaires, participants will be contacted via email or phone if they have completed
fewer than 4 daily questionnaires in any week during their N-of-1 trial. At the end of the
study, the participants will complete an end of-study questionnaire and a 10-30 min.
interview with staff member with formal qualitative research training. Then, PERSONAL staff
will review N-of-1 trial results with the participant.