A Self-efficacy Based Dietary Intervention

NCT ID: NCT04961827

Last Updated: 2024-05-09

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

TERMINATED

Clinical Phase

NA

Total Enrollment

68 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-07-29

Study Completion Date

2022-12-22

Brief Summary

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To develop and test the effectiveness of a dietary intervention aiming to enhance self-efficacy through sending images through instant messaging.

Detailed Description

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Healthy eating is linked to improved survival and quality of life among cancer survivors. However, previous studies showed that most cancer survivors were not adhering to dietary recommendations despite having made changes post-diagnosis.

Conventional nutrition counseling interventions are often used in this population. However, they are labor and cost intensive and involved multiple sessions with participants. Written materials have often been used to facilitate improvements of dietary quality beyond nutrition counseling sessions but are outdated. Therefore, we propose to develop and test the effectiveness of a dietary intervention aiming to enhance self-efficacy through sending images through instant messaging. Methods to increase self-efficacy include performance accomplishment, persuasion, modelling and peer-modelling.

A prospective, randomized controlled trial design will be used to test the effectiveness of the intervention. A total of 168 adult Chinese cancer survivors, diagnosed with non-metastatic cancer (Stages 0-III), and have completed all active treatments, including surgery and adjuvant treatments such as chemotherapy and radiation therapy will be recruited.

Participants will be randomly assigned into one of two groups at a 1:1 ratio, using computer-generated block randomization sequences. The first group will be an active control group. Participants in this group will receive knowledge-based dietary information through an instant messaging applications biweekly for 6 times. The second group will be the intervention group. Participants will receive biweekly self-efficacy enhancing materials for 6 times. Materials will provide information about behavior-health link, provide information on consequences, provide instruction, and provide opportunities for social comparison. For example, the materials will provide recipe ideas and meal planning samples from fellow cancer survivors. All materials will be developed by a registered dietitian and will be consistent with published dietary guidelines for cancer survivors.

Participants will have follow-up appointments at 3 months. Their dietary quality and skin carotenoid status will be monitored. It is hypothesized that dietary quality will be better and skin carotenoid status will be higher for participants in the intervention group compared to participants in the active control group.

Conditions

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Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Intervention: Self-efficacy based images

Intervention group with self-efficacy based images sent through instant messaging biweekly for 6 times.

Group Type EXPERIMENTAL

Self-efficacy based images through instant messaging

Intervention Type BEHAVIORAL

A total of 6 images will be sent to participants via instant messaging. Images will utilize concepts in the Theory of self-efficacy to increase dietary self-efficacy among participants and hence improve dietary quality beyond that of conventional nutrition counseling.

Active control: knowledge based images

Active control group with knowledge based images sent through instant messaging biweekly for 6 times.

Group Type ACTIVE_COMPARATOR

Knowledge based images through instant messaging

Intervention Type BEHAVIORAL

A total of 6 images will be sent to participants via instant messaging. Images will consist of information covered in nutrition counseling sessions, such as those related to serving sizes.

Interventions

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Self-efficacy based images through instant messaging

A total of 6 images will be sent to participants via instant messaging. Images will utilize concepts in the Theory of self-efficacy to increase dietary self-efficacy among participants and hence improve dietary quality beyond that of conventional nutrition counseling.

Intervention Type BEHAVIORAL

Knowledge based images through instant messaging

A total of 6 images will be sent to participants via instant messaging. Images will consist of information covered in nutrition counseling sessions, such as those related to serving sizes.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Aged 18 or above
* Diagnosed with cancer, non-metastatic (Stages 0-III)
* Ability to read Chinese and speak Cantonese or Putonghua/Mandarin
* Completed all active treatments, including surgery and adjuvant treatments such as chemotherapy and radiation therapy
* Attending clinic with nutrition counseling at study site

Exclusion Criteria

* Ethnicity other than Chinese
* Diagnosed with mental, hearing, speech, or cognitive disabilities
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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The University of Hong Kong

OTHER

Sponsor Role lead

Responsible Party

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Wendy Wing Tak Lam

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Wendy Lam

Role: PRINCIPAL_INVESTIGATOR

School of Public Health, The University of Hong Kong

Locations

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JCICC

Hong Kong, , Hong Kong

Site Status

Countries

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Hong Kong

Other Identifiers

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UW20-622

Identifier Type: -

Identifier Source: org_study_id

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