- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT07685652
Bowel Preparation Quality Following Video-Based Intervention and Educational Booklet Versus Standard of Care in an Outpatient Setting (PrepVibe)
Bowel Preparation Quality Following Video-Based Intervention and Educational Booklet Versus Standard of Care in an Outpatient Setting: A Single-Center, Endoscopist-Blinded Randomized Controlled Trial
연구 개요
상태
상세 설명
BACKGROUND AND RATIONALE:
Non-pharmacological factors, especially the modality of patient education, may influence bowel preparation quality, yet are underexplored and likely context-dependent based on local staffing, patient characteristics, and practice norms.
STUDY DESIGN:
Prospective, single-endoscopist-blinded, three-arm randomized controlled trial (RCT) with intention-to-treat (ITT) primary analysis. Allocation 1:1:1 using computer-generated random numbers. Endoscopist and endoscopy nurses are blinded to group assignment; participants cannot be blinded due to the nature of the intervention.
SETTING:
Hospital Sibu Endoscopy Unit, Sarawak, Malaysia. Colonoscopies performed by qualified surgeons or registrars under supervision; all endoscopists undergo refresher training on Boston Bowel Preparation Scale (BBPS) scoring for consistency.
STUDY ARMS (INTERVENTIONS):
Arm A (Control): Usual care. Physician/nurse-delivered verbal instructions plus standard pharmacy instructions for bowel preparation solution (split-dose PEG 3L).
Arm B (Written): Tri-lingual (Malay/English/Chinese), plain-language educational leaflet reviewed by health literacy expert, plus brief verbal explanation. Arm C (Visual): Short, structured instructional videos accessible via smartphone QR code, reviewed by health literacy expert, plus brief verbal explanation.
SAMPLE SIZE AND STATISTICAL ANALYSIS:
N=324 (108 per arm). Primary analysis: Intent-to-treat chi-square test comparing adequate vs inadequate BBPS across three arms. Pairwise comparisons with Bonferroni adjustment. Multivariable logistic regression adjusts for prespecified covariates (age, sex, BMI, diabetes, education, language, constipation, study arm).
PRIMARY OUTCOME:
Adequate versus inadequate bowel preparation on Boston Bowel Preparation Scale (BBPS). Adequate = total ≥6 with all segments ≥2.
SECONDARY OUTCOMES:
Polyp detection rate; cecal intubation and withdrawal times; cancellation and repeat rates; patient tolerance; complications; patient-reported clarity and helpfulness; anxiety (VAS-A); demographic predictors.
연구 유형
등록 (추정된)
단계
- 해당 없음
연락처 및 위치
연구 연락처
- 이름: Prasad Mothayapan, MD
- 전화번호: +60-84-343333
- 이메일: mprasad.ge@gmail.com
연구 장소
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Sarawak
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Sibu, Sarawak, 말레이시아, 96000
- 모병
- Hospital Sibu
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참여기준
자격 기준
공부할 수 있는 나이
- 성인
- 고령자
건강한 자원 봉사자를 받아들입니다
설명
Inclusion Criteria:
- Age 18 years or older
- Outpatients scheduled for elective colonoscopy at Hospital Sibu Endoscopy Unit
- Ability to provide written informed consent
- Access to smartphone or computer with functional internet connectivity
Exclusion Criteria:
- History of non-compliance with prescribed medical regimens
- Cognitive impairment, dementia, or significant mental health disorder compromising informed consent
- Illiteracy or inability to read materials in provided languages
- Prior colonic resection or colostomy
- Inflammatory Bowel Disease (IBD) or Irritable Bowel Syndrome (IBS)
- Significant physical disability (bed-bound or wheelchair-dependent)
- Contraindication to polyethylene glycol (PEG) bowel preparation
- Severe Chronic Kidney Disease (Stage IV or V; eGFR <15 mL/min/1.73m²)
- Significant cardiac comorbidities (unstable angina, severe heart failure, MI within 6 months)
- Inability or unwillingness to comply with study protocol
- Refusal to provide informed consent
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 지지 요법
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 더블
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
|
활성 비교기: Usual Care (Verbal Counseling)
Standard physician/nurse-delivered verbal instructions and standard pharmacy information sheet for bowel preparation solution (split-dose PEG 3L, Fortrans) according to hospital protocol.
Timing and dietary guidance aligned with standard of care.
No additional written or visual materials provided.
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Standard verbal instructions delivered by physician or nurse regarding bowel preparation regimen, timing, dietary restrictions, and what to expect during procedure.
|
|
실험적: Written Educational Pamphlet
Tri-lingual (Malay, English, Chinese) plain-language educational pamphlet detailing step-by-step bowel preparation instructions, plus brief verbal explanation.
Pamphlet reviewed by health literacy expert prior to use.
Same preparation solution and regimen as Control arm.
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Structured written educational material in Malay, English, and Chinese languages detailing complete bowel preparation instructions, timing, dietary guidance, what to expect, and troubleshooting tips.
Provided to participant with brief verbal explanation.
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|
실험적: Visual Media (QR Code Video)
Short, structured instructional videos accessible via smartphone QR code explaining bowel preparation procedure step-by-step, plus brief verbal explanation.
Videos reviewed by health literacy expert prior to use.
Same preparation solution and regimen as Control arm.
|
Short, professionally produced instructional videos accessible via smartphone QR code link.
Videos present step-by-step bowel preparation instructions, timing, dietary guidance, common concerns, and what to expect during procedure.
Participant scans QR code to access video(s) on their smartphone.
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Adequate Bowel Preparation on Boston Bowel Preparation Scale (BBPS)
기간: On day of colonoscopy procedure, assessed immediately upon colonoscope insertion before lavage (time point: 0 minutes)
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Primary outcome dichotomized as adequate versus inadequate bowel preparation.
Adequate = total BBPS score ≥6 with all three colon segments (left, transverse, right) scoring ≥2 each (scale 0-3 per segment; range 0-9).
Inadequate = total <6 or any segment <2.
Assessment performed before any bowel cleansing/lavage.
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On day of colonoscopy procedure, assessed immediately upon colonoscope insertion before lavage (time point: 0 minutes)
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Polyp Detection Rate
기간: During colonoscopy procedure
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Proportion of participants with at least one polyp detected during colonoscopy.
Documented as yes/no and number of polyps.
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During colonoscopy procedure
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Cecal Intubation Time
기간: During colonoscopy procedure
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Time in minutes from colonoscope insertion to identification of cecal landmarks.
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During colonoscopy procedure
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Colonoscopy Withdrawal Time
기간: During colonoscopy procedure
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Time in minutes from initiation of scope withdrawal to scope exit at rectum, excluding biopsy/therapeutic time.
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During colonoscopy procedure
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Procedure Cancellation Rate
기간: On day of scheduled colonoscopy
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Proportion of participants whose colonoscopy was cancelled and reason for cancellation.
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On day of scheduled colonoscopy
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Repeat Colonoscopy Rate
기간: Within 6 months of initial colonoscopy
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Proportion requiring repeat colonoscopy due to inadequate initial preparation.
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Within 6 months of initial colonoscopy
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Patient Tolerance to Bowel Preparation
기간: Pre-procedure on day of colonoscopy
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atient self-reported tolerability using five-point scale: Very Easy, Easy, Neutral, Difficult, Very Difficult.
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Pre-procedure on day of colonoscopy
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Procedure-Related Complications
기간: During procedure and within 7 days post-procedure
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Occurrence of perforation, bleeding, post-polypectomy syndrome, or other adverse events.
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During procedure and within 7 days post-procedure
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Patient-Reported Clarity of Instructions
기간: Pre-procedure on day of colonoscopy
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Patient perception of clarity using five-point Likert scale.
Statement: "The instructions were clear."
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Pre-procedure on day of colonoscopy
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Patient Anxiety Assessment
기간: Pre-procedure on day of colonoscopy
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Patient self-reported anxiety on Visual Analog Scale for Anxiety (VAS-A), 0-10 scale (0=no anxiety, 10=extremely anxious).
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Pre-procedure on day of colonoscopy
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공동 작업자 및 조사자
스폰서
수사관
- 수석 연구원: Prasad Mothayapan, MD, Hospital Sibu, Malaysia
- 연구 책임자: Tiong How Chieng, MD, Hospital Sibu, Malaysia
간행물 및 유용한 링크
연구 기록 날짜
연구 주요 날짜
연구 시작 (실제)
기본 완료 (추정된)
연구 완료 (추정된)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
키워드
기타 연구 ID 번호
- RSCH-25-05992-BBX
- NMRR-25-04038-EOB (레지스트리 식별자: Malaysian National Medical Research Registry)
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
IPD 계획 설명
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
미국 FDA 규제 기기 제품 연구
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