- ICH GCP
- Registr klinických studií v USA
- Klinická studie NCT02861703
Pilot Feasibility Study of an Online Lifestyle Intervention for Overweight Breast Cancer Survivors
The Feasibility, Acceptability and Preliminary Effectiveness of an Online Lifestyle Intervention for Healthy Weight Management and Improved Quality of Life in Breast Cancer Survivors
Přehled studie
Detailní popis
Breast cancer (BC) is one of the most common types of cancer in Canadian women, and although the mortality rate is decreasing, there remain numerous challenges for survivorship. Among the most prevalent yet less commonly discussed post-treatment concerns, is substantial weight gain, with approximately 70% of women being overweight at diagnosis and additional weight gain often resulting from treatment. Obesity has serious psychological and physical implications for both pre- and post-menopausal BC survivors; in addition to compromising body image and QoL, it increases risk for recurrence and mortality. Specifically, increased fat results in greater production of estrogen, insulin, leptin and pro-inflammatory cytokines, and lesser production of sex hormone binding globulin, all of which have been linked to the promotion of BC and tumor growth. As such, the development of strategies for the promotion and maintenance of optimal body mass has become a primary focus for BC survivorship.
Trials of lifestyle interventions for this population are in their early stages and have primarily included modification of diet alone, exercise alone, or both. Results have been mixed, especially regarding the effects of dietary change alone but generally support the benefits of exercise and combined diet and exercise on weight loss and improved QoL in cancer survivors. However, despite indications that diet and exercise interventions lead to improvements in physical health and mental health, there remains a lack of consistent evidence that these gains are maintained long-term. As such, there is a need for more systematic follow-up of these interventions to determine their potential to produce enduring effects as well as for development and refinement of techniques that improve long-term weight management.
Beyond developing effective services, a direction for future research should include outreach to underserved populations. Rural BC survivors represent one group, in particular, with limited access to healthy lifestyle interventions, and who could benefit greatly from participation. Compared to their urban counterparts, these women are less likely to have timely diagnostic biopsies and receive optimal treatment, and are diagnosed later, at more advanced stages when prognosis is less favourable. They are also more likely to be obese, be less physically active, have poor eating habits, experience psychological distress, and have less access to mental health resources, placing them at heightened risk for weight gain. Researchers and health care providers have a responsibility to develop ways of redressing such health disparities and helping these particularly vulnerable women make lasting changes to their overall health and QoL.
Society's recent movement toward "eHealth", which refers to "the use of emerging information and communication technology, especially the Internet, to improve or enable health and health care", introduces an exciting opportunity to increase availability of health care to BC survivors. Numerous eHealth diet and exercise interventions have been evaluated using community samples and have generally yielded mixed findings along with recommendations for refinement of future programs and more rigorous evaluation. Only one online community intervention has been in group-format, and to the investigators knowledge, no online, group-based lifestyle intervention has yet been developed specifically for BC survivors. Given the potential for broader delivery of health care services via the Internet, research surrounding the value of computer-based lifestyle interventions is especially warranted.
Present Study
Firstly, while trials to date demonstrate that diet and exercise interventions lead to improvements in physical and mental health, there remains a lack of consistent evidence that these gains are maintained long-term. Arguably, programs that focus primarily on modifying nutrition and/or physical activity render only short-term effects because they fail to address more subtle, but ingrained, psychosocial factors that interfere with sustained progress. This project will develop and evaluate a group-based lifestyle intervention that incorporates diet and exercise strategies along with education of issues more broadly related to healthy lifestyle in the context of BC survivorship such as depression, fatigue, body image, and social support. The program will be developed by an interdisciplinary team of clinicians/researchers (oncologist, nurse, dietician, physiotherapist and senior psychologist), and grounded in Systems and Self-Determination Theory, which recognize one's motivation and self-efficacy as being the multi-determined product of interactions between personal, social, and environmental factors; as such, this program goes beyond behavioural diet and exercise modification by incorporating self-monitoring, motivational interviewing, professional knowledge, and peer feedback.
Secondly, despite growing evidence for the efficacy of interactive computer-based programs aimed at behaviour change and the associated advantages (e.g., convenience, accessibility, anonymity), there are no such interventions to support weight loss and sustained management for BC survivors. This project aims to fill this gap in health care by developing and evaluating the first online, group-based lifestyle intervention for BC survivors.
Objectives. The primary aim of this study is to evaluate the feasibility and acceptability of an online group-based lifestyle intervention for BC survivors. Qualitative data from the post-treatment interviews, and written responses from the treatment satisfaction survey were analyzed using thematic analysis to investigate this aim. A secondary aim is to evaluate the short- and longer-term effects of this healthy lifestyle intervention on participants' (1) physical (weight, BMI, waist circumference,) (2) behavioural (eating and physical activity habits) and (3) psychosocial well-being (quality of life, body image). This secondary aim was evaluated by comparing participants' scores on these measures prior to participating in the intervention, to their scores immediately following treatment, six months following treatment, and 12-months following treatment.
Primary aim hypotheses. It is hypothesized that this program is feasible to implement, as demonstrated by acceptable rates of attrition, homework completion and discussion board posting. It is also hypothesized that this program is acceptable, as demonstrated by satisfactory feedback obtained through a treatment satisfaction questionnaire and post-treatment interviews.
Secondary aim hypotheses. It is hypothesized that there will be a significant reduction in participants' weight, BMI, and waist circumference from pre-treatment to post-treatment, from pre-treatment to 6-months follow-up, and from pre-treatment to 12-months follow-up. It is hypothesized that there will be a significant improvement in participants' eating and physical activity habits from pre-treatment to post-treatment, from pre-treatment to 6-months follow-up, and from pre-treatment to 12-months follow-up. It is also hypothesized that there will be a significant improvement in participants' quality of life from pre-treatment to post-treatment, from pre-treatment to 6-months follow-up, and from pre-treatment to 12-months follow-up. Finally, it is hypothesized that there will be a significant improvement in participants' body image from pre-treatment to post-treatment, from pre-treatment to 6-months follow-up, and from pre-treatment to 12-months follow-up.
Method
This study will employ a single-arm pilot study, with repeated measures psychometric evaluation. Standardized measures will be completed at pre-treatment, post-treatment, and 6- and 12- months follow-up.
Recruitment
Participants will be accrued through the Louise Temerty Breast Center at Sunnybrook Health Sciences Centre (SHSC). The study will be advertised by staff and through brochures in the hospital and community-based organizations such as 'Willow Breast Cancer Support Canada', and via electronic brochures posted on websites commonly accessed by BC survivors. Interested women will contact the principal investigator, who will provide detailed information about the nature of the project, the study objectives and procedures, answer any questions the prospective participants have, and determine eligibility using the screening questionnaire.
Procedure
Participants will follow an individualized diet and exercise plan while participating in a 10-week online group, consisting of group discussion, educational videos, as well as homework completion and related feedback. Once screened, participants will be invited to SHSC to complete consent forms and baseline measures and a demographics questionnaire. They will be asked to complete these same measures immediately following completion of the intervention, as well as 6 and 12 months afterwards.
Typ studie
Zápis (Aktuální)
Fáze
- Nelze použít
Kontakty a umístění
Studijní místa
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Ontario
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Toronto, Ontario, Kanada, M4N 3M5
- Sunnybrook Health Sciences Centre
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Kritéria účasti
Kritéria způsobilosti
Věk způsobilý ke studiu
Přijímá zdravé dobrovolníky
Pohlaví způsobilá ke studiu
Popis
Inclusion Criteria:
- be 21 years or older
- have been diagnosed with primary BC (stages I-III)
- have completed active treatment within the previous 5 years
- have a BMI above 25 or report a weight increase of 10 pounds or more post-treatment,
- be available to participate in 10 consecutive weeks of the online program
7) be comfortable using and have access to a computer and secure Internet connection 8) can read and write in English.
Exclusion Criteria:
- diagnosis of metastatic cancer
- diagnosis of a mental health condition that would interfere with their own, or another group members' ability to benefit from the group (e.g., psychosis)
- diagnosis of an additional medical condition that is not being successfully managed/treated
- plans to undergo a medical procedure within the next year
- plans to participate in another structured weight loss program or take weight loss medication within the next year.
Studijní plán
Jak je studie koncipována?
Detaily designu
- Primární účel: Léčba
- Přidělení: N/A
- Intervenční model: Přiřazení jedné skupiny
- Maskování: Žádné (otevřený štítek)
Zbraně a zásahy
Skupina účastníků / Arm |
Intervence / Léčba |
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Experimentální: Online lifestyle intervention
A weekly psychosocial intervention ("Online Lifestyle Intervention") delivered in an online group format, to promote positive changes in physical (eating habits, physical activity) and mental health (body image, self-esteem, self-efficacy).
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Online, computer-mediated interactive group-based lifestyle intervention addressing thoughts, feelings, behaviours related to eating, physical activity, and other psychosocial issues related to breast cancer survivorship (e.g., mood, body image, existential issues, social support).
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Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
---|---|---|
Change in Body Mass Index
Časové okno: Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Measured as a function of participants' weight (kg), divided by their height (squared metres)
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Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Change in Waist Circumference
Časové okno: Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Measured as the difference across time points on participants' waist circumference in inches, using a nonelastic measuring tape at the widest part of hips.
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Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Sekundární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
---|---|---|
Change in Quality of Life
Časové okno: Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Measured as the difference across time points on participants' scores on the Functional Assessment of Cancer Therapy - For Patients with Breast Cancer (FACT-B)
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Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Change in Subjective Health
Časové okno: Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Measured as the difference across time points on participants' scores on the Rand Health Survey--Short Form (SF-36)
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Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Change in Life Satisfaction
Časové okno: Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Measured as the difference across time points on participants' scores on the Satisfaction with Life Scale (SWLS)
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Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Change in Symptoms of Anxiety and Depression
Časové okno: Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Measured as the difference across time points on participants' scores on the Hospital Anxiety and Depression Scale (HADS)
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Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Change in Body Image
Časové okno: Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Measured as the difference across time points on participants' scores on the Body Image Scale (BIS)
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Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Change in Objectified Body Consciousness
Časové okno: Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Measured as the difference across time points on participants' scores on the Objectified Body Consciousness Scale (OBCS)
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Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Change in Dietary Intake
Časové okno: Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Measured as the difference across time points on participants' scores on the Automated Self-administered 24-hour Dietary Recall (ASA24)
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Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Change in 'Intuitive Eating' Habits
Časové okno: Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Measured as the difference across time points on participants' scores on the Intuitive Eating Scale-2 (IES-2)
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Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Change in Exercise Habits
Časové okno: Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Measured as the difference across time points on participants' scores on the Godin Leisure-Time Exercise Questionnaire
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Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Change in Self-Efficacy
Časové okno: Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Measured as the difference across time points on participants' scores on the Nutrition and Physical Exercise Self-Efficacy Scale
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Baseline, 6 months (mid-treatment), 12 months (post-treatment), 18 months (6-month follow-up), 24 months (12-month follow-up)
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Spolupracovníci a vyšetřovatelé
Spolupracovníci
Vyšetřovatelé
- Vrchní vyšetřovatel: Karen Fergus, Sunnybrook Health Sciences Centre
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia (Aktuální)
Primární dokončení (Aktuální)
Dokončení studie (Aktuální)
Termíny zápisu do studia
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Odhad)
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Více informací
Termíny související s touto studií
Další identifikační čísla studie
- CBCF-092014
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