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Evaluating a Blood Pressure Reduction and Weight Loss Program in a Low Income, Ethnically Diverse Population (The Be Fit, Be Well [BFBW] Study) (BFBW)

3 mars 2012 mis à jour par: Graham Colditz, Washington University School of Medicine

Integrated Weight Loss Technologies for Weight and Blood Pressure Control in Urban Clinics

Obesity is a serious health problem that is a contributing factor for heart disease and high blood pressure. This study will evaluate a lifestyle modification program that aims to encourage weight loss and improve the health of people with high blood pressure from low income and minority communities.

Aperçu de l'étude

Statut

Complété

Les conditions

Intervention / Traitement

Description détaillée

Obesity is a serious health problem in the United States, particularly among lower income and racial and ethnic minority populations. These populations have a high risk of developing heart disease and high blood pressure, and obesity is likely a contributing factor for both conditions. African-Americans, in particular, experience an earlier onset of high blood pressure and suffer more severe health consequences as a result, than do other racial and ethnic groups. This study will evaluate the effectiveness of a lifestyle modification program that will focus on reducing blood pressure levels and encouraging weight loss among patients at community health centers that serve a primarily low-income, ethnically diverse population. Researchers will also evaluate the cost effectiveness of the lifestyle modification program.

This 2-year study will enroll people who have high blood pressure. Participants will attend a baseline study visit to complete health questionnaires. They will then be randomly assigned to either receive usual care along with printed materials about maintaining a healthy weight or take part in the lifestyle modification program that incorporates health information technologies. Participants assigned to the program will visit the BFBW study Web site several times a week to review educational and motivational information. They may receive automated weekly phone calls that will prompt them to answer questions and assist them in setting goals for losing weight and managing their blood pressure. A study researcher will call participants every 6 weeks to discuss any problems and to invite participants to take part in optional walking groups or other group activities. Participants will attend group support sessions every other month and will wear a pedometer to track their walking habits. For all participants, study visits will occur at baseline and Months 6, 12, 18, and 24. All visits will include weight and blood pressure measurements, health questionnaires, and physician referrals if needed.

Type d'étude

Interventionnel

Inscription (Réel)

365

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

  • États-Unis
    • Massachusetts
      • Boston, Massachusetts, États-Unis, 02115
        • Dana Farber Cancer Institute

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

21 ans et plus (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  • High blood pressure that is being treated with medication
  • BMI between 30 and 50 kg/m2
  • Weighs no more than 400 lbs
  • Willing to change diet, physical activity levels, and weight
  • Willing to be assigned to either study group
  • Patient of a participating community health center with a record of at least one medical visit in the 12 months before study entry
  • Primary care provider approval is needed for people with the following conditions: diabetes mellitus, a prior cardiovascular event more than 6 months before study entry, known stable cardiovascular or peripheral vascular disease

Exclusion Criteria:

  • Experienced a heart attack, stroke, or an atherosclerotic cardiovascular disease (ASCVD) procedure in the 6 months before study entry
  • Serious medical condition that is likely to interfere with an accurate measurement of weight, for which weight loss is not medically advisable, or that would cause weight loss (e.g., end-stage renal disease [ESRD] and on dialysis; diagnosis or treatment for cancer in the 2 years before study entry, other than non-melanoma skin cancer)
  • Prior or planned bariatric surgery
  • Use of FDA-approved prescription weight loss medication, including off label drugs (e.g., topiramate, bupropion, byetta) or over-the-counter orlistat in the 6 months before study entry
  • Long-term use (i.e., in the 6 months before study entry) of medications likely to cause weight gain or prevent weight loss (e.g., corticosteroids, lithium, olanzapine, risperidone, clozapine)
  • Pregnant or breastfeeding in the 6 months before study entry
  • Plans to become pregnant in the 2 years after study entry
  • Plans to relocate from the area in the 2 years after study entry
  • Another member of household is a study participant or study staff member
  • Principal investigator decides that the individual is not suitable for the study

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Comparateur actif: 1
Participants in this group will receive usual medical care and reading materials on weight loss.
Comportemental: Usual Care and Reading Materials
Participants in this group will receive usual medical care provided by their own primary care providers. They will also receive the NHLBI's "Aim for a Healthy Weight" brochure at the baseline study visit and again at the beginning of Year 2.
Expérimental: 2
Participants in this group will take part in the lifestyle modification program.
Comportemental: Lifestyle Modification Program
Participants will receive a behavior change "prescription" and skills training, offered via the Internet or through a combination of tailored print materials and an interactive voice response system, together with support strategies to enhance the intensity of the interpersonal and social-environmental support.
Autres noms:
  • ES+SS (Environmental Support + Social Support)

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Délai
Change in body mass index (BMI)
Délai: Measured at Year 2
Measured at Year 2

Mesures de résultats secondaires

Mesure des résultats
Délai
Reduction in blood pressure
Délai: Measured at Year 2
Measured at Year 2

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Washington University School of Medicine

Collaborateurs

National Heart, Lung, and Blood Institute (NHLBI)

Les enquêteurs

  • Chercheur principal: Graham A. Colditz, MD, DrPH, Washington University School of Medicine
  • Chercheur principal: Gary G. Bennett, PhD, Dana Farber Cancer Institute/Harvard School of Public Health
  • Chercheur principal: Karen M. Emmons, PhD, Dana Farber Cancer Institute/Harvard School of Public Health

Publications et liens utiles

La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.

Publications générales

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude

1 novembre 2006

Achèvement primaire (Réel)

1 avril 2011

Achèvement de l'étude (Réel)

1 avril 2011

Dates d'inscription aux études

Première soumission

16 avril 2008

Première soumission répondant aux critères de contrôle qualité

16 avril 2008

Première publication (Estimation)

18 avril 2008

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Estimation)

6 mars 2012

Dernière mise à jour soumise répondant aux critères de contrôle qualité

3 mars 2012

Dernière vérification

1 mars 2012

Plus d'information

Termes liés à cette étude

Mots clés

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • 448
  • U01HL087071 (Subvention/contrat des NIH des États-Unis)
  • U01HL087071-01 (Subvention/contrat des NIH des États-Unis)
  • RFA-HL-007

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