TY - JOUR
T1 - Promoting weight loss through diet and exercise in overweight or obese breast cancer survivors (InForma)
T2 - Study protocol for a randomized controlled trial
AU - Gnagnarella, Patrizia
AU - Dragà, Daniele
AU - Baggi, Federica
AU - Simoncini, Maria Claudia
AU - Sabbatini, Annarita
AU - Mazzocco, Ketti
AU - Bassi, Fabio Domenico
AU - Pravettoni, Gabriella
AU - Maisonneuve, Patrick
PY - 2016/7/28
Y1 - 2016/7/28
N2 - Background: Most women with breast cancer experience a progressive weight gain during and after treatment. Obesity is associated with an increased risk of recurrence, contralateral breast cancer, and death. Physical activity after cancer diagnosis has been reported to have positive effects on body composition and quality of life. We present the protocol of the InForma study, a trial testing the efficacy of an intervention on weight loss (≥5 % of the baseline body weight) in a group of overweight or obese breast cancer survivors. Methods/design: This is a four-arm randomized controlled trial. Patients will receive a 6-month intervention and be followed for a further 18 months. Intervention is designed to improve adherence to a healthy diet and/or to increase physical activity, taking advantage of a wrist-based activity monitor. Participants will be recruited among overweight or obese breast cancer patients treated at the European Institute of Oncology, after completion of eventual adjuvant chemotherapy and/or radiotherapy. It is envisaged that 260 patients will be randomized into four arms: Dietary Intervention; Physical Activity Intervention; Physical Activity and Dietary Intervention; and Less Intensive Intervention. Women will be offered individualized counseling consisting of face-to face discussion and phone calls in addition to group meetings. A motivational interviewing approach will be used to encourage health behavior change. All participants will be given a pedometer device to monitor their physical activity. Participants' dietary intake will be repeatedly assessed using a validated food frequency questionnaire. Participants' quality of life and anxiety will be assessed with the Functional Assessment of Cancer Therapy-Breast and the State-Trait Anxiety Inventory questionnaires. Blood samples will be collected at baseline and follow-up visits to assess lipid and hormone profiles. Body composition will be repeatedly assessed using bioelectrical impedance vector analysis for identifying changes of fat and fat-free mass. Women allocated to the less intensive intervention arm will be considered as the control group. Discussion: While there is a rising concern about the role of obesity in cancer recurrence and survival, this trial with its multi-arm design, motivational approach and use of a pedometer device will provide important insights regarding the most effective approach in promoting weight control in breast cancer survivors. Trial registration:ISRCTN53325751(registration date: 16 October 2015); ClinicalTrials.gov NCT02622711(registration date: 2 December 2015).
AB - Background: Most women with breast cancer experience a progressive weight gain during and after treatment. Obesity is associated with an increased risk of recurrence, contralateral breast cancer, and death. Physical activity after cancer diagnosis has been reported to have positive effects on body composition and quality of life. We present the protocol of the InForma study, a trial testing the efficacy of an intervention on weight loss (≥5 % of the baseline body weight) in a group of overweight or obese breast cancer survivors. Methods/design: This is a four-arm randomized controlled trial. Patients will receive a 6-month intervention and be followed for a further 18 months. Intervention is designed to improve adherence to a healthy diet and/or to increase physical activity, taking advantage of a wrist-based activity monitor. Participants will be recruited among overweight or obese breast cancer patients treated at the European Institute of Oncology, after completion of eventual adjuvant chemotherapy and/or radiotherapy. It is envisaged that 260 patients will be randomized into four arms: Dietary Intervention; Physical Activity Intervention; Physical Activity and Dietary Intervention; and Less Intensive Intervention. Women will be offered individualized counseling consisting of face-to face discussion and phone calls in addition to group meetings. A motivational interviewing approach will be used to encourage health behavior change. All participants will be given a pedometer device to monitor their physical activity. Participants' dietary intake will be repeatedly assessed using a validated food frequency questionnaire. Participants' quality of life and anxiety will be assessed with the Functional Assessment of Cancer Therapy-Breast and the State-Trait Anxiety Inventory questionnaires. Blood samples will be collected at baseline and follow-up visits to assess lipid and hormone profiles. Body composition will be repeatedly assessed using bioelectrical impedance vector analysis for identifying changes of fat and fat-free mass. Women allocated to the less intensive intervention arm will be considered as the control group. Discussion: While there is a rising concern about the role of obesity in cancer recurrence and survival, this trial with its multi-arm design, motivational approach and use of a pedometer device will provide important insights regarding the most effective approach in promoting weight control in breast cancer survivors. Trial registration:ISRCTN53325751(registration date: 16 October 2015); ClinicalTrials.gov NCT02622711(registration date: 2 December 2015).
KW - Body composition
KW - Breast cancer survivors
KW - Counseling
KW - Diet
KW - Pedometer
KW - Physical activity
KW - Prevention
KW - Quality of life
KW - Randomized controlled trial
KW - Weight loss
UR - http://www.scopus.com/inward/record.url?scp=84979529756&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84979529756&partnerID=8YFLogxK
U2 - 10.1186/s13063-016-1487-x
DO - 10.1186/s13063-016-1487-x
M3 - Article
AN - SCOPUS:84979529756
VL - 17
JO - Trials
JF - Trials
SN - 1745-6215
IS - 1
M1 - 363
ER -