A Weight Management Intervention for Overweight Chinese 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

RECRUITING

Clinical Phase

NA

Total Enrollment

102 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-10-31

Study Completion Date

2026-06-30

Brief Summary

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This study aims to conduct a feasibility trial to examine the feasibility and acceptability of conducting a randomized controlled trial that evaluates the effect of the weight management intervention on anthropometric measures (body weight and BMI), dietary quality, physical activity levels, physical and psychosocial functioning, self- efficacy for weight loss and quality of life.

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Detailed Description

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The primary aim of the proposed study is to assess the feasibility and acceptability of conducting a randomized controlled trial (RCT) that evaluates an adaptive weight management intervention, tailored to Chinese cancer survivors with overweight/obesity after the completion of cancer survivorship care, to improve anthropometric measures (body weight and BMI), dietary quality, physical activity levels, physical and psychosocial functioning, self-efficacy for weight loss and quality of life. According to the Consolidation Standards of Reporting Trials (CONSORT) guidelines for reporting feasibility trials, hypothesis setting for a feasibility trial is not recommended, given that pilot trials are often underpowered to detect difference which instead should be the aim of the main trial.

Conditions

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Cancer Weight Loss Overweight and Obesity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

This is a 3-arm feasibility trial study with one intervention group, one active control group and one waitlist control group. Computer-generated block randomization sequences will be generated by a statistician who is blinded to the identity of participants prior to the start of the trial. A block randomisation structure with randomly permuted block sizes of 3 and 6 will be used to reduce selection bias and ensure close balance of the numbers in each arm. The serially labelled opaque sealed envelope method will be used for randomisation.

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

The investigator, care provider, and outcomes assessor are masked in terms of not knowing to which condition the participants will be randomized until after the completion of the baseline assessment. The outcomes assessor will break the envelope for the next eligible participant indicating if that participant is to be allocated to intervention or active control or waitlist arms.

The participants are masked in terms of not knowing that the intervention are hypothesized to yield larger effects than the others (i.e. controls).

Study Groups

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L4 weight management intervention

A weight management intervention, namely Lose Little, Live Longer (L4), is recently developed to assist overweight cancer survivors in weight loss through lifestyle modification including improved dietary quality and enhanced physical activity levels. Its underlying theoretical framework is principally derived from Social Cognitive Theory (SCT), which have been widely used in health behavioural change interventions.

Group Type EXPERIMENTAL

L4 weight management intervention

Intervention Type BEHAVIORAL

he key goals of the intervention are to: (i) teach knowledge of weight loss benefits and health risks of obesity, (ii) offer skill-based dietary and physical activity advice, (iii) develop an achievable weight loss goal and plan, (iv) enhance weight management self-efficacy, (v) provide access to exercise equipment and resources, and (vi) teach strategies for managing cravings. The L4 intervention is a therapist- delivered intervention involving a registered dietitian and a cancer exercise specialist. Participants allocated to the intervention arm will be provided with a schedule to attend the L4 intervention within four weeks post-baseline via phone. They will receive five intervention sessions (120 min each) on a weekly basis, and will be given home-based practices and reading to practice the skills learnt in each session. The intervention sessions will be delivered in a group format with a maximum of 5 individuals per group, which is likely to enhance accountability.

Active control

A video-based intervention is selected as a low-touch alternative with expected benefits beyond a no treatment control. Participants allocated to the active control arm will receive five educational videos designed to promote a balanced diet and reinforce regular physical activity, weekly through instant messaging.

Group Type ACTIVE_COMPARATOR

Active control

Intervention Type BEHAVIORAL

A video-based intervention is selected as a low-touch alternative with expected benefits beyond a no treatment control. Participants allocated to the active control arm will receive five educational videos designed to promote a balanced diet and reinforce regular physical activity, weekly through instant messaging, and be encouraged to follow the advice covered in the videos. The materials will be developed based on the existing dietary and physical activity guidelines for cancer survivors. Participants in this arm will be arranged to attend to the L4 intervention upon completion of the study.

Waitlist

Participants allocated to the waitlist control arm will receive a set of pamphlets with generic, knowledge-based dietary and physical activity information. All pamphlets are developed based on the self-management framework. Participants in this arm will be arranged to attend to the L4 intervention upon completion of the study.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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L4 weight management intervention

he key goals of the intervention are to: (i) teach knowledge of weight loss benefits and health risks of obesity, (ii) offer skill-based dietary and physical activity advice, (iii) develop an achievable weight loss goal and plan, (iv) enhance weight management self-efficacy, (v) provide access to exercise equipment and resources, and (vi) teach strategies for managing cravings. The L4 intervention is a therapist- delivered intervention involving a registered dietitian and a cancer exercise specialist. Participants allocated to the intervention arm will be provided with a schedule to attend the L4 intervention within four weeks post-baseline via phone. They will receive five intervention sessions (120 min each) on a weekly basis, and will be given home-based practices and reading to practice the skills learnt in each session. The intervention sessions will be delivered in a group format with a maximum of 5 individuals per group, which is likely to enhance accountability.

Intervention Type BEHAVIORAL

Active control

A video-based intervention is selected as a low-touch alternative with expected benefits beyond a no treatment control. Participants allocated to the active control arm will receive five educational videos designed to promote a balanced diet and reinforce regular physical activity, weekly through instant messaging, and be encouraged to follow the advice covered in the videos. The materials will be developed based on the existing dietary and physical activity guidelines for cancer survivors. Participants in this arm will be arranged to attend to the L4 intervention upon completion of the study.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Chinese cancer survivors attending the one-off face-to-face survivorship care clinic
* who are Cantonese- or Mandarin- speaking
* aged 18 or above
* diagnosed with early-stage disease (stage 0-II)
* have completed primary and adjuvant treatments such as chemotherapy and radiotherapy
* and with a BMI ≥ 23 kg/m2, as indicative as overweight or obesity using Asia-Pacific BMI cutoffs at 3-months reassessment