A randomized, double-blind water taste test to evaluate the equivalence of taste between tap water and filtered water in the Taipei metropolis.
Jing-Rong Jhuang, Wen-Chung Lee, Chang-Chuan Chan
https://pubmed.ncbi.nlm.nih.gov/32770131Actively Recruiting
Led by National Taiwan University Hospital · Updated on 2026-03-03
248
Participants Needed
5
Research Sites
104 weeks
Total Duration
N
National Taiwan University Hospital
Lead Sponsor
N
National Taiwan University Hospital Hsin-Chu Branch
Collaborating Sponsor
Researchers are evaluating a new approach to Pap smear screening to improve cervical cancer screening participation among women aged 25 and above. This multicenter randomized controlled trial applies the peak-end concept by adding a non-painful step at the end of the Pap test. The study is the first to examine whether this modified Pap test can increase participation rates in cervical cancer screening and reduce recalled pain related to the procedure. Participants are randomly assigned to receive either the traditional Pap test or a modified version where, after sample collection, the speculum remains fixed in place for 15 seconds before removal. This additional step is designed to be non-painful and is performed behind a privacy curtain. All operators follow standardized procedures, and the study includes blinding of participants and cytopathologists to group assignments. The trial plans to recruit at least 248 women across multiple centers in the NTUH Healthcare System, with half receiving the modified test. During the study, participants provide written informed consent and undergo interviews to collect health, lifestyle, and psychological information. Measurements include anxiety scores, pain ratings at various time points, and medical history. Researchers will analyze cervical cancer screening participation at 1 and 3 years, along with real-time and recalled pain scores. The study includes careful monitoring and statistical analyses to assess the effect of the intervention on screening uptake and pain perception over time.
CONDITIONS
Ameliorated Pap Tests and Cervical Cancer Screening Participation
You may qualify if you...
You will not qualify if you...
Complete this quick 3-step screening to check your eligibility
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person) for screening and enrollment
Duration - Single day
Participants receive either the traditional Pap test or the modified Pap test. The Pap test involves specimen collection for cervical cytology with a privacy curtain separating participants from operators. Those in the modified Pap test group experience an additional 15-second step with the speculum in place, which does not affect specimen quality or cause pain.
1 visit (in-person) for the Pap test procedure
Duration - Up to 3 months after the Pap test
Participants complete pain evaluations immediately and up to 3 months after the Pap test. Information on tobacco use, alcohol consumption, socioeconomic status, medical history, anxiety, and psychological stress is collected through interviews and measurements.
1 visit for immediate pain assessment and follow-up assessments up to 3 months
Duration - 3 years
Participants are monitored for cervical cancer screening participation over 3 years to assess the impact of the Pap test intervention on screening uptake.
Follow-up contacts or assessments to record screening participation during 3 years
Total: 5 locations
1
National Taiwan University Hospital Yunlin Branch
Douliu, Taiwan
Actively Recruiting
2
National Taiwan University Hospital Hsin-Chu Branch
Hsinchu, Taiwan
Actively Recruiting
3
National Taiwan University Hospital
Taipei, Taiwan, 100
Actively Recruiting
4
National Taiwan University Cancer Center
Taipei, Taiwan
Actively Recruiting
5
National Taiwan University Hospital Beihu Branch
Taipei, Taiwan
Actively Recruiting
C
Chien-Hsieh Chiang, MD, MPH, PhD
Y
Yu-Chung Wu, MD
Study Type
INTERVENTIONAL
Masking
SINGLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
SCREENING
Number of Arms
2
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