Obesity Clinical Trial - Optimizing an Online Behavioral Weight Loss

Status Not yet recruiting

Clinical Trial Summary

Obesity disproportionately impacts sexual minority women. Behavioral weight loss programs are the gold standard treatment for mild to moderate obesity. The investigators have developed an online behavioral weight loss program that is effective, low-cost, and highly scalable. However, existing research suggests that tailoring treatment to address 3 well-established weight loss barriers in sexual minority women will be critical for maximizing the relevance and efficacy of behavioral weight loss for this group. In the Preparation Phase of this K23, the investigators developed 3 novel treatment components targeting sexual minority women's weight loss barriers (i.e., minority stress, low social support, and negative body image), the investigators piloted the program among sexual minority women of higher weight, and the investigators conducted individual qualitative interviews to elicit feedback on the intervention's acceptability, cultural relevance, usability, and feasibility, and this feedback was used to refine the program. In the Optimization Phase of this K23 (the current phase), 88 women will receive 12 weeks of Rx Weight Loss and will be randomized to receive 0-3 tailored components in a full factorial design with 23 (8) distinct combinations of components. Novel components that increase mean weight loss (by ≥2%) or the proportion of women achieving clinically meaningful weight loss (by ≥10%) at 6 months will be retained in a finalized obesity treatment package that the investigators will evaluate in a future randomized controlled trial (RCT) (Evaluation Phase). The aims of this study are to: Aim 2A (Optimization): Use a factorial experiment to determine how 3 novel components impact mean weight loss and the proportion of women achieving a 5+% weight loss at 6 months. Aim 2B (Mediation): Clarify how tailored components impact weight loss by testing hypothesized mechanisms of action (i.e., coping with stress, perceived social support, weight and shape concerns). This project will tailor and optimize an evidence-based online behavioral obesity treatment to enhance weight loss outcomes in sexual minority women.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05775497
Study type	Interventional
Source	The Miriam Hospital
Contact	Emily Panza, PhD
Phone	401-793-9714
Email	Emily.Panza@Lifespan.org
Status	Not yet recruiting
Phase	N/A
Start date	March 13, 2023
Completion date	March 29, 2024

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Optimizing an Online Behavioral Weight Loss Intervention and Novel Culturally Tailored Components for Sexual Minority Women

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms