Development and Testing of a Social Cognitive Theory-based Dietary Behavioral Intervention in Gastric Cancer Survivors

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

35 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-01-12

Study Completion Date

2022-08-15

Brief Summary

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This study aims to develop a Social Cognitive Theory (SCT)-based dietary behavioral intervention for gastric cancer survivors, and explore the feasibility, acceptability, and preliminary effectiveness of delivering this intervention. This study includes two phases: intervention development in phase 1 and a pilot randomized controlled trial (RCT) in phase 2.

During phase 1, the initial intervention protocol has been developed based on the SCT and literature review, which was further refined and/or enriched based on evidences from a qualitative descriptive study and an expert consultation. The qualitative descriptive study has been conducted from July to November 2021, and the expert consultation has been conducted from December 2021 to January 2022. For the qualitative descriptive study, purposive sampling was used to select eligible participants in patients who had a gastrectomy within two years from a tertiary hospital in Wuhan city, China. Three focus group interviews were performed with 13 participants via WeChat. Interviews were audio-recorded, transcribed verbatim, and analyzed using conventional qualitative content analysis. Data collection and analysis proceeded simultaneously until data saturation was reached. For the expert consultation, six experts majoring in nursing, digestive oncology, or nutrition were invited to assess the content validity of the intervention protocol. Data analysis of the qualitative descriptive study and the expert consultation is ongoing.

During phase 2, the pilot RCT for testing the feasibility, acceptability, and preliminary effectiveness of the proposed intervention is started. All participants are recruited through convenience sampling from a tertiary hospital in Wuhan city, China. Sample size of the pilot RCT is proposed to be 72. After randomization, the participants are assigned to one of two groups, either the intervention group, which receive a 4-week dietary behavioral intervention; or the control group, which receive usual care only. The 4-week dietary behavioral intervention targets six dietary behaviors related to gastric cancer and is delivered by a registered nurse who has received around 32 hours of nutrition training. The intervention includes one session of face-to-face education and three sessions of telephone counselling; all sessions are individual based. The usual care is general dietary advice provided by the ward nurses before discharge. The general dietary advice is provided orally and printed in the discharge plan. The primary outcomes are feasibility and acceptability. The secondary outcomes include dietary consumption, quality of life, and self-efficacy. Outcome measurements are conducted at baseline (before randomization), and week 5 (after intervention). Generalized estimating equation model analyses will be conducted to examine group-by-time interaction effects.

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Detailed Description

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Conditions

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Stomach Neoplasms Cancer Survivors

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

NONE

Study Groups

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The intervention group

A 4-week dietary behavioral intervention provided by a registered nurse who has received nutrition training.

Group Type EXPERIMENTAL

The intervention group

Intervention Type BEHAVIORAL

The intervention will last for four weeks and target six dietary behaviors related to gastric cancer. The intervention components include one session of face-to-face education prior to discharge and three sessions of telephone counselling after discharge. The face-to-face education will last for 20 to 30 minutes and each session of telephone counselling will last for 10 to 20 minutes. All the interventional sessions are individual based.

Usual care

General dietary advice provided by the ward nurses.

Group Type OTHER

Usual care

Intervention Type OTHER

General dietary advice provided as routine by the ward nurses before discharge from the hospital.

Interventions

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The intervention group

The intervention will last for four weeks and target six dietary behaviors related to gastric cancer. The intervention components include one session of face-to-face education prior to discharge and three sessions of telephone counselling after discharge. The face-to-face education will last for 20 to 30 minutes and each session of telephone counselling will last for 10 to 20 minutes. All the interventional sessions are individual based.

Intervention Type BEHAVIORAL

Usual care

General dietary advice provided as routine by the ward nurses before discharge from the hospital.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Adult aged 18 years or above；
* A confirmed diagnosis of gastric cancer (stage I-III)；
* Completed primary cancer treatments including surgery, and/or chemotherapy， and/or radiotherapy；
* Currently free of cancer；
* Able to read, write and speak Mandarin.

Exclusion Criteria

* Unable to eat orally；
* With poor performance status as determined by the Eastern Cooperative Oncology Group (ECOG) scores ≥ 2;
* With poor cognitive status as determined by the Montreal Cognitive Assessment 5 minute Test \<11;
* Taking part in other dietary interventions or under regular follow-up by a dietitian.

Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No