NCT04420208

Brief Summary

To reduce the procedural pain of Pap smear, this study expects to apply the peak-end rule to Pap smear by prolonging the insertion of speculum after samples are obtained from the cervix. This study aims to conduct a randomized controlled study at a tertiary center, National Taiwan University Hospital (NTUH). The investigators expect to compare the recalled pain intensity of the intervention and control groups.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
268

participants targeted

Target at P75+ for not_applicable pain

Timeline
Completed

Started May 2020

Typical duration for not_applicable pain

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 28, 2020

Completed
7 days until next milestone

First Submitted

Initial submission to the registry

June 4, 2020

Completed
5 days until next milestone

First Posted

Study publicly available on registry

June 9, 2020

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2020

Completed
12 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 11, 2021

Completed
Last Updated

November 1, 2021

Status Verified

October 1, 2021

Enrollment Period

5 months

First QC Date

June 4, 2020

Last Update Submit

October 27, 2021

Conditions

Keywords

Cervical cancer screeningPap smearProcedural painPeak-end rule

Outcome Measures

Primary Outcomes (2)

  • Recalled pain just after the Pap smear test using a 1-5 numeric scale

    This recalled pain intensity is evaluated with a 1-5 numeric scale (1:no pain; 5: maximal pain).

    Five minutes after the Pap test

  • Recalled pain just after the Pap smear test using a a 0-10 visual analog scale

    This recalled pain intensity is evaluated with a 0-10 visual analog scale (0: no pain; 10: maximal pain), where pain was categorized as mild, moderate, and severe.

    Five minutes after the Pap test

Secondary Outcomes (4)

  • Real-time pain during the Pap test using a 1-5 numeric scale

    Every five seconds throughout the Pap test

  • Long-term recalled pain after the Pap test using a 1-5 numeric scale

    One year after the Pap test

  • Long-term recalled pain after the Pap test using a 0-10 visual analog scale

    One year after the Pap test

  • Willingness to receive further Pap tests

    One year after the Pap test

Study Arms (2)

Modified Pap test

EXPERIMENTAL

Adding a non-painful event after the most uncomfortable phase of Pap smear.

Procedure: Modified Pap test

Traditional Pap test

NO INTERVENTION

Traditional Pap-smear procedure as control.

Interventions

Adding a non-painful step after the most uncomfortable phase of Pap smear

Modified Pap test

Eligibility Criteria

Age30 Years - 70 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Biological female
  • Aged 30-70
  • Provision of written informed consent

You may not qualify if:

  • Pregnancy
  • Active vaginal or uterus infection
  • Incapable of understanding the numeric pain scales
  • Prior cervical cancer diagnosis
  • Prior hysterectomy, pelvic or vaginal surgery
  • Ongoing menstruation
  • Use of painkillers within 24 hours

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Taiwan University Hosputal

Taipei, 100, Taiwan

Location

Related Publications (1)

  • Yen HK, Cheng SY, Chiu KN, Huang CC, Yu JY, Chiang CH; NTUH Pap Study Group. Adding a nonpainful end to reduce pain recollection of Pap smear screening: a randomized controlled trial. Pain. 2023 Aug 1;164(8):1709-1717. doi: 10.1097/j.pain.0000000000002897. Epub 2023 Apr 12.

MeSH Terms

Conditions

PainPain, Procedural

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Chien-Hsieh Chiang, MD, MPH

    Attending physician

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
During the Pap test, there is a privacy curtain separating participants from the operators. Participants receiving the modified Pap test do not realize what is going on during the 15-second step because they are behind the privacy curtain. The operators performing the procedure are not informed whether to intervene or not by the assistants until a specimen is prepared for cervical cytology. The delayed disclosure of the group allocation until this step ensures the operators standardizing the insertion and opening phases of the Pap test.
Purpose
SCREENING
Intervention Model
PARALLEL
Model Details: Subjects are divided into two groups, one with traditional Pap smear and one with Pap smear adding a non-painful procedure at the end. The investigators will compare the real-time pain score and recalled pain to check whether the theory works.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 4, 2020

First Posted

June 9, 2020

Study Start

May 28, 2020

Primary Completion

October 31, 2020

Study Completion

October 11, 2021

Last Updated

November 1, 2021

Record last verified: 2021-10

Data Sharing

IPD Sharing
Will not share

Locations