- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT04515303
Digital Intervention Participation in DASH
Optimizing Inclusion of Blacks Within a Dietary Change Intervention to Reduce Hypertension
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Nearly 50% of adults in the United States have high blood pressure, a leading contributor to cardiovascular disease. When race is considered, the majority of black adults (55%) have high blood pressure, a greater prevalence than other racial/ethnic groups. The elevated rate of high blood pressure, a diet-related disease, reflects the sub-optimal diet quality observed in blacks. The DASH dietary pattern is an evidence-based strategy to treat high blood pressure that has become part of the Dietary Guidelines for Americans. DASH promotes a diet rich in fruits and vegetables, low-fat dairy, controlled amounts of total fat, cholesterol and saturated fat, high fiber and protein content. Data from the National Health and Nutrition Examination Survey indicate that approximately 19% of adults with high blood pressure were DASH adherent. Those who were adherent tended to be older and non-black with a higher education level. Even after intervention, lower DASH adherence scores have been seen in blacks versus whites, possibly due to lower baseline consumption of DASH foods in blacks. Although dietary improvements from DASH-promoting interventions have been observed, adherence has decreased over time, and when translated to less controlled settings. Sufficient representation of blacks is important for clinical trials testing DASH given the disproportionate prevalence of high blood pressure. This study will examine factors that may influence black adults' participation and success in improving dietary quality through the following aims:
- To identify barriers to and facilitators of recruiting black adults into a digital DASH-promoting intervention. A semi-structured interview guide will direct individual interviews via phone with black men and women to understand what supports or deters participation in a digital health intervention trial for dietary quality improvement.
To determine the barriers and facilitators to improving dietary quality in black adults.
Participants in the individual interviews (Aim 1) will also identify their motivations, concerns and priorities surrounding dietary change. This will inform recruitment efforts and our understanding about how to improve dietary quality.
- To conduct secondary data analyses to determine the effectiveness, by race and gender group, of various recruitment methods from a 12-month randomized controlled trial to examine the effects of the intervention on changes in dietary quality and blood pressure among men and women with high blood pressure (clinical trails identifier: NCT03875768). The intervention asks participants to track their diet daily using a common commercial tracking app with an extensive nutrient database via smartphone. Food and nutrient data from the app is processed using an application programming interface, compared against an algorithm, and generates personalized automated text messages to each participant with information on DASH diet adherence and diet tips. Responsive coaching is also included for participants that require greater support for dietary change.
Diverse sample recruitment is essential to producing outcomes that are applicable to diverse populations living with hypertension. Examination of barriers and facilitators to consuming a quality diet and identification of effective recruitment methods for digital interventions may inform how investigators reach black men and women with hypertension to effectively improve diet for the treatment of cardiovascular disease.
Type d'étude
Inscription (Anticipé)
Contacts et emplacements
Coordonnées de l'étude
- Nom: Loneke Blackman Carr, PhD, RD
- Numéro de téléphone: 860-486-5073
- E-mail: Loneke.blackman_carr@uconn.edu
Lieux d'étude
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Connecticut
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Storrs, Connecticut, États-Unis, 06103
- Recrutement
- University of Connecticut
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Contact:
- Loneke T. Blackman Carr, PhD, RD
- Numéro de téléphone: 860-486-5073
- E-mail: loneke.blackman_carr@uconn.edu
-
-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
Méthode d'échantillonnage
Population étudiée
La description
Inclusion Criteria:
- self-identify as having high blood pressure
- self-identify as Black/African American/Afro-Caribbean
- at least 18 years old
- self-reported body mass index≥ 18.5 kg/m2
- email address
- English is primary language
Exclusion Criteria:
- planning to leave the area during study time period
- participating in a related trial
- cardiovascular disease event (e.g. stroke, myocardial infarction) in prior 6 months
- pregnancy - current or planned during the study period
- active malignancy
- recent psychiatric institutionalization
- documented dementia
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
---|---|---|
Barriers and facilitators of recruitment
Délai: day 1
|
Using individual interviews to elicit information of potential recruitment preferences
|
day 1
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
---|---|---|
Barriers and facilitators of diet quality
Délai: day 1
|
Individual interviews to understand black men/women's diet quality experiences
|
day 1
|
Comparison of recruitment methods
Délai: Baseline
|
Use recruitment data collected from the main trial to compare the most effective recruitment methods for black men and women
|
Baseline
|
Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Loneke Blackman Carr, PhD, RD, University of Connecticut
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Anticipé)
Achèvement de l'étude (Anticipé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- KFS 5658780
- 3R01HL146768-01S1 (Subvention/contrat des NIH des États-Unis)
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Informations sur les médicaments et les dispositifs, documents d'étude
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Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .
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