- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT00198783
Real-Time Assessment of Food Craving, Use, and Triggers During Outpatient Treatment of Obesity: A Development and Feasibility Study
Studieoversikt
Status
Forhold
Detaljert beskrivelse
- Interested persons, recruited by advertisement and screened by telephone (Appendix B), will report to the Johns Hopkins Bloomberg School of Public Health for in-person screening. At the screening session, we will obtain informed consent, HIPAA consent, medical-history information (including current medications, alcohol, and cigarette use), and baseline measurements of bioelectrical impedance (BIA-body composition testing), blood pressure, pulse, body weight, and waist and hip circumference. Individuals will also be screened with established instruments for eating-disorder symptoms (Appendix C), and depression (Appendix D).
- After deemed eligible, subjects will be prescribed an individualized diet and exercise program at Visit 2 (Week 0). Additional questionnaires to be done at this visit: Restraint Scale, Three-Factor Eating Questionnaire (TFEQ), and Reasons for Dieting (Appendix E).
- At the same visit, each participant will be issued a PDA and trained in its use as an Electronic Diary (ED). Participants will be expected to carry their PDAs at all times.
- A 4-week period of high-frequency monitoring will begin immediately: random prompts to initiate recordings will occur 0-5 times per day for 4 weeks. Participants must respond to at least 85% of all random prompts within 15 minutes. Participants will also initiate recordings whenever they have just experienced an urge to eat, or whenever they have actually eaten.
- Participants will be randomly assigned to a Group condition or a No-Group condition.
- In the Group condition, participants will attend 10 group meetings, starting at Week 2 (Visit 4), to strengthen diet-adherence and lapse-management skills. Group meetings will be held once every week for the first 5 weeks, and once every other week for the next 11 weeks.
- In the No-group condition, participants will be given some written tips on diet adherence, but will not attend group.
- All participants must come to the clinic at scheduled times (one time per week) to upload information from the PDA to a central data source. Participants will also be weighed at these visits. This may, for some participants, coincide with the scheduled group meetings
- During Week 5-16, the frequency of EMA random prompts will be reduced to 0-2 per day.
- During Week 8 we will re-weigh the participant and reevaluate each participant's diet and exercise program to ensure a proper and safe weight-maintenance regimen. We will also record the participant's height, weight, BIA, waist and hip measurements, blood pressure, and pulse.
- A final reevaluation and weigh-in will also occur when the participant finishes the study (Week 17). We will also record the participant's height, weight, BIA, waist and hip measurements, blood pressure, and pulse
- Participants will return their PDA to the clinic at this visit.
- At Weeks 26 and 52, participants will return for a follow-up visits at which they will be re-weighed and their current diet and exercise habits will be assessed. We will also record their height, weight, BIA, waist and hip measurements, blood pressure, and pulse.
- Participants will be paid $15 each time they provide ED data for upload (up to a maximum once per week). Subjects will receive an additional $80 for completing all 16 weeks, for a possible total of $320. Additionally, participants will be paid $50 for each follow-up visit at Weeks 26 and 52. Total compensation will be $420 for completion of the entire protocol. In addition, participants will be provided compensation for paying to park at a garage at the Johns Hopkins campus.
- Participants will be removed from the study if they: behave inappropriately; lose or damage two PDAs; miss more than three scheduled clinic visits; or fail to respond within 15 minutes to more than 15% of random prompts during either phase 1 or 2 of EMA.
Studietype
Registrering
Kontakter og plasseringer
Studiesteder
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Maryland
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Baltimore, Maryland, Forente stater, 21205
- Johns Hopkins Bloomberg School of Public Health
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Inclusion Criteria:
1) age between 18 and 65; 2) BMI > 30 kg/m2 prior to weight loss; 3) initial weight loss in the 12-month period prior to enrolling of at least 10% of starting body weight; 4) no more than 50% regain of that initial weight loss by the time of screening.
Exclusion Criteria:
1) Schizophrenia or any other DSM-IV psychotic disorder; history of bipolar disorder; current Major Depressive Disorder; 2) current dependence on alcohol or sedative-hypnotic, e.g. benzodiazepine (by DSM-IV criteria); 3) cognitive impairment severe enough to preclude informed consent or valid self-report; 4) medical illness that in the view of the investigators would compromise participation in research.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Samarbeidspartnere og etterforskere
Samarbeidspartnere
Etterforskere
- Hovedetterforsker: Lawrence J Cheskin, MD, Johns Hopkins Bloomberg School of Public Health
Studierekorddatoer
Studer hoveddatoer
Studiestart
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- NIDA2005-01
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