The purpose of this protocol is to conduct a 2-arm, single-blinded randomized controlled clinical trial (RCT) in which 56 dyads (defined as consisting of an overweight or obese cancer survivor of an obesity-related cancer and an overweight or obese "buddy" of his or her choosing) would be assigned either to a 6-month, diet- and exercise-based weight loss intervention delivered via an interactive website with tailored text messages, or to a 6-month wait-listed control group. The overall goals of the eHealth intervention are to reduce obesity and select circulating biomarkers (tumor necrosis factor alpha \[TNFα\], insulin, and insulin-like growth factor-1 \[IGF-1\]), as well as improve diet quality, physical activity, health-related quality of life (QoL), physical functioning and performance as compared to the control over the 6-month study period.
The specific aims of this protocol are to: 1) determine whether dyads (comprised of an overweight / obese cancer survivor and an overweight / obese buddy of his or her choosing) lose significantly more weight (kg) at 6-months when assigned to the eHealth intervention compared to a wait-listed control; 2) explore between-arm differences in score changes between baseline and 6-month follow-up for other key outcomes including measures of adiposity (e.g., waist circumference \[WC\] and body mass index \[BMI\]), blood pressure, diet quality, physical activity, health-related Quality of Life (QoL), physical functioning and performance; 3) Assess the impact of the intervention on select biomarkers associated with cancer risk and progression, e.g., tumor TNFα, insulin and IGF-1; and, 4) identify predictor variables associated with program efficacy, e.g., social support, self-efficacy, risk for depression, and dyad partner (spouse, relative, friend/neighbor). Cancer survivors and their selected "buddies" who are interested in participating will be directed to a website that describes this study in detail. If interested, they will be asked to complete an online screener requiring information on race/ethnicity, gender, state of residence and eligibility criteria. Once interested participants are assessed for eligibility, consented and enrolled, they will be asked to complete online questionnaires that assess physical activity, dietary intake, health-related quality of life, risk for depression, self-efficacy, social support and barriers to diet resources. Finally, anthropometric measures, blood pressure, physical performance and circulating biomarkers will be collected in participants' homes by visiting study staff (whom the project manager will deploy after checking for a mutually convenient time for the 2-person dyad.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Enrollment
112
Every week, each dyad member will receive a tailored text message that provides a new fun fact or that encourages them to log-on to the website to access findings of new research and how the results might apply to them. They will be directed to specific pages in the Web-based program and asked to select strategies from a list that they will practice during the upcoming week. Graphic displays of their progress will be provided along with SCT-based feedback. They will be directed to the website to record their behavioral goals for the upcoming week. Tips also will be provided for effective communication to enhance couple efficacy. All usage will be tracked to assess adherence.
UAB School of Health Professions, Department of Nutrition Sciences
Birmingham, Alabama, United States
Body Weight
Change in measured body weight
Time frame: baseline
Body Weight
Change in measured body weight
Time frame: 6 months
Waist Circumference
measured with a non-stretch tape
Time frame: baseline
Waist Circumference
measured with a non-stretch tape
Time frame: 6 months
Physical Activity (self-reported)
Godin Leisure Time Physical Activity Questionnaire (4-item survey) - individuals provide the number of minutes of vigorous, moderate and light physical activity per week. The minimum is 0 - theoretically, the maximum is 10,080 (the number of minutes in a week), then they are asked if this level of activity is "typical." The higher the number of minutes of totaled moderate + vigorous activity, the better.
Time frame: Baseline
Physical Activity (self-reported)
Godin Leisure Time Physical Activity Questionnaire (4-item survey) - individuals provide the number of minutes of vigorous, moderate and light physical activity per week. The minimum is 0 - theoretically, the maximum is 10,080 (the number of minutes in a week), then they are asked if this level of activity is "typical." The higher the number of minutes of totaled moderate + vigorous activity, the better.
Time frame: 3 months
Physical Activity (self-reported)
Godin Leisure Time Physical Activity Questionnaire (4-item survey) - individuals provide the number of minutes of vigorous, moderate and light physical activity per week. The minimum is 0 - theoretically, the maximum is 10,080 (the number of minutes in a week), then they are asked if this level of activity is "typical." The higher the number of minutes of totaled moderate + vigorous activity, the better.
Time frame: 6 months
Physical Activity (objective)
Accelerometry (7-day assessment)
Time frame: baseline
Physical Activity (objective)
Accelerometry (7-day assessment)
Time frame: 6 months
Diet Quality
Two 24-hour dietary recalls
Time frame: baseline
Diet Quality
Two 24-hour dietary recalls
Time frame: 6 months
Physical Performance (endurance)
2-minute step test
Time frame: Baseline
Physical Performance (endurance)
2-minute step test
Time frame: 6 months
Physical Performance (lower body strength)
30-second chair stand
Time frame: Baseline
Physical Performance (lower body strength)
30-second chair stand
Time frame: 6 months
Physical Performance (agility)
8' foot up and go
Time frame: Baseline
Physical Performance (agility)
8' foot up and go
Time frame: 6 months
Physical Performance (gait speed)
8' walk
Time frame: baseline
Physical Performance (gait speed)
8' walk
Time frame: 6 months
Physical Performance (Balance)
Side-by-side, semi-tandem and tandem stances
Time frame: baseline
Physical Performance (Balance)
Side-by-side, semi-tandem and tandem stances
Time frame: 6 months
Self-efficacy for calorically restricted diet
Clark et al. survey (20 items). Respondents either affirm or deny that they can resist high fat, high calorie foods under a variety of situations. Individuals who have maximum willpower achieve the top score of 20, whereas those with lesser willpower score lower (the minimum score is zero)
Time frame: baseline
Self-efficacy for calorically restricted diet
Clark et al. survey (20 items). Respondents either affirm or deny that they can resist high fat, high calorie foods under a variety of situations. Individuals who have maximum willpower achieve the top score of 20, whereas those with lesser willpower score lower (the minimum score is zero)
Time frame: 3 months
Self-efficacy for calorically restricted diet
Clark et al. survey (20 items). Respondents either affirm or deny that they can resist high fat, high calorie foods under a variety of situations. Individuals who have maximum willpower achieve the top score of 20, whereas those with lesser willpower score lower (the minimum score is zero)
Time frame: 6 months
Self-efficacy for increased physical activity
Sallis et al. survey (6 items in total). Respondents rate themselves on each item from 0 to 100% on their level of confidence. The higher the total score (maximum of 100%) the better (Minimum 0%).
Time frame: baseline
Self-efficacy for increased physical activity
Sallis et al. survey (6 items in total). Respondents rate themselves on each item from 0 to 100% on their level of confidence. The higher the total score (maximum of 100%) the better (Minimum 0%).
Time frame: 3 months
Self-efficacy for increased physical activity
Sallis et al. survey (6 items in total). Respondents rate themselves on each item from 0 to 100% on their level of confidence. The higher the total score (maximum of 100%) the better (Minimum 0%).
Time frame: 6 months
Social support for calorically restricted diet
Sallis et al. instrument (4 items). Respondents rate the level of support they obtain to follow a healthy, low calorie diet on a 5-point scale ranging from ("never"= 0 to "everyday" = 4. Individuals who have maximum support achieve the top score of 16, whereas those with lesser support score lower (the minimum score is zero)
Time frame: baseline
Social support for increased physical activity
Sallis et al. instrument (4 items in total) Respondents rate the level of support they obtain to increase their level of physical activity on a 5-point scale ranging from ("never"= 0 to "everyday" = 4. Individuals who have maximum support achieve the top score of 16, whereas those with lesser support score lower (the minimum score is zero)
Time frame: baseline
Social support for calorically restricted diet
Sallis et al. instrument (4 items). Respondents rate the level of support they obtain to follow a healthy, low calorie diet on a 5-point scale ranging from ("never"= 0 to "everyday" = 4. Individuals who have maximum support achieve the top score of 16, whereas those with lesser support score lower (the minimum score is zero)
Time frame: 3 months
Social support for increased physical activity
Sallis et al. instrument (4 items in total) Respondents rate the level of support they obtain to increase their level of physical activity on a 5-point scale ranging from ("never"= 0 to "everyday" = 4. Individuals who have maximum support achieve the top score of 16, whereas those with lesser support score lower (the minimum score is zero)
Time frame: 3 months
Social support for calorically restricted diet
Sallis et al. instrument (4 items). Respondents rate the level of support they obtain to follow a healthy, low calorie diet on a 5-point scale ranging from ("never"= 0 to "everyday" = 4. Individuals who have maximum support achieve the top score of 16, whereas those with lesser support score lower (the minimum score is zero)
Time frame: 6 months
Social support for increased physical activity
Sallis et al. instrument (4 items in total) Respondents rate the level of support they obtain to increase their level of physical activity on a 5-point scale ranging from ("never"= 0 to "everyday" = 4. Individuals who have maximum support achieve the top score of 16, whereas those with lesser support score lower (the minimum score is zero)
Time frame: 6 months
Barriers for increased physical activity
(15 items in total) Respondents either affirm or deny common barriers to exercise. Individuals who report more barriers achieve the top score of 21, whereas those with fewer barriers score lower (the minimum score is zero) and that is considered better.
Time frame: baseline
Barriers for increased physical activity
(15 items in total) Respondents either affirm or deny common barriers to exercise. Individuals who report more barriers achieve the top score of 21, whereas those with fewer barriers score lower (the minimum score is zero) and that is considered better.
Time frame: 3 months
Barriers for increased physical activity
(15 items in total) Respondents either affirm or deny common barriers to exercise. Individuals who report more barriers achieve the top score of 21, whereas those with fewer barriers score lower (the minimum score is zero) and that is considered better.
Time frame: 6 months
Circulating insulin
assays on dried blood spot eluents
Time frame: baseline
Circulating insulin
assays on dried blood spot eluents
Time frame: 6 months
Circulating glucose
assays on dried blood spot eluents
Time frame: baseline
Circulating glucose
assays on dried blood spot eluents
Time frame: 6 months
Circulating IL-6
assays on dried blood spot eluents
Time frame: baseline
Circulating IL-6
assays on dried blood spot eluents
Time frame: 6 months
Circulating CRP
assays on dried blood spot eluents
Time frame: baseline
Circulating CRP
assays on dried blood spot eluents
Time frame: 6 months
Circulating Total Cholesterol
assays on dried blood spot eluents
Time frame: baseline
Circulating Total Cholesterol
assays on dried blood spot eluents
Time frame: 6 months
Circulating HDL Cholesterol
assays on dried blood spot eluents
Time frame: baseline
Circulating HDL Cholesterol
assays on dried blood spot eluents
Time frame: 6 months
Circulating Tryglycerides
assays on dried blood spot eluents
Time frame: baseline
Circulating Tryglycerides
assays on dried blood spot eluents
Time frame: 6 months
Circulating Adiponectin
assays on dried blood spot eluents
Time frame: baseline
Circulating Adiponectin
assays on dried blood spot eluents
Time frame: 6 months
Circulating Leptin
assays on dried blood spot eluents
Time frame: baseline
Circulating Leptin
assays on dried blood spot eluents
Time frame: 6 months
Duke OARS Co-Morbidity Index
43-item assessment of co-morbid conditions (multiple choice) (modified by removing 1 item)
Time frame: baseline
Duke OARS Co-Morbidity Index
43-item assessment of co-morbid conditions (multiple choice) (modified by removing 1 item)
Time frame: 3 months
Duke OARS Co-Morbidity Index
43-item assessment of co-morbid conditions (multiple choice) (modified by removing 1 item)
Time frame: 6 months
PROMIS v.1.2 GLOBAL HEALTH
10-item Likert scale assessment of Quality of Life
Time frame: Baseline
PROMIS v.1.2 GLOBAL HEALTH
10-item Likert scale assessment of Quality of Life
Time frame: 3 months
PROMIS v.1.2 GLOBAL HEALTH
10-item Likert scale assessment of Quality of Life
Time frame: 6 months
EQ-5D-5L
6-item Likert scale assessment of Quality of Life
Time frame: Baseline
EQ-5D-5L
6-item Likert scale assessment of Quality of Life
Time frame: 3 months
EQ-5D-5L
6-item Likert scale assessment of Quality of Life
Time frame: 6 months
HEALTH / E-HEALTH LITERACY SCALE (NORMAN 2006)
7-item scale to assess e-health literacy. Two items were added from eHEALS to understand consumer's interest in using eHealth in general.
Time frame: Baseline
HEALTH / E-HEALTH LITERACY SCALE (NORMAN 2006)
7-item scale to assess health and e-health literacy. Two items were added from eHEALS to understand consumer's interest in using eHealth in general.
Time frame: 3 months
HEALTH / E-HEALTH LITERACY SCALE (NORMAN 2006)
7-item scale to assess health and e-health literacy. Two items were added from eHEALS to understand consumer's interest in using eHealth in general.
Time frame: 6 months
Barriers to Eating a Healthy Low Calorie Diet
(10 items) Respondents either affirm or deny common barriers to low calorie diet.
Time frame: Baseline
Barriers to Eating a Healthy Low Calorie Diet
(10 items) Respondents either affirm or deny common barriers to low calorie diet.
Time frame: 3 months
Barriers to Eating a Healthy Low Calorie Diet
(10 items) Respondents either affirm or deny common barriers to low calorie diet.
Time frame: 6 months
PROMIS Emotional Distress: Depression - Short Form 8a
(8 items) Likert scale assessment of depression
Time frame: Baseline
PROMIS Emotional Distress: Depression - Short Form 8a
(8 items) Likert scale assessment of depression
Time frame: 3 months
PROMIS Emotional Distress: Depression - Short Form 8a
(8 items) Likert scale assessment of depression
Time frame: 6 months
Smoking status
2 items that ask whether respondent has ever smoked \>100 cigarettes and current smoking status.
Time frame: Baseline
Smoking status
2 items that ask whether respondent has ever smoked \>100 cigarettes and current smoking status.
Time frame: 3 months
Smoking status
2 items that ask whether respondent has ever smoked \>100 cigarettes and current smoking status.
Time frame: 6 months
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