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Behavioral Management of Phosphorus in Hemodialysis Patients

30 mai 2018 mis à jour par: NYU Langone Health

Behavioral Management of Phosphorus in Hemodialysis

The purpose of this randomized clinical trial is to evaluate alternative technology-supported behavioral approaches to engaging 42 maintenance hemodialysis (HD) patients with persistent hyperphosphatemia in phosphorus binder adherence and dietary phosphorus restriction. Participants will be randomized to 1 of 3 intervention groups: (1) Education (Edu); (2) Edu + Self-Monitoring (SM); or (3) Edu + SM + Social Cognitive Theory (SCT)-based training program.

Aperçu de l'étude

Statut

Complété

Les conditions

Intervention / Traitement

Description détaillée

Investigators will evaluate the intervention in terms of feasibility and acceptability, behavior change at 12 and 24 weeks (reported phosphorus binder adherence, reported nutrient intakes, normalized protein catabolic rate), and clinical outcomes (serum phosphorus concentrations, symptoms). In addition, the impact of the different behavioral approaches on self-efficacy at 12 and 24 weeks, and the mediating effects of self-efficacy in facilitating behavioral changes and clinical outcomes will be examined.

Type d'étude

Interventionnel

Inscription (Réel)

40

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
    • New York
      • New York, New York, États-Unis, 10016
        • New York University School of Medicine

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

19 ans à 89 ans (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  • Receiving thrice-weekly hemodialysis treatment for at least 3 months
  • 3-month average serum phosphorus concentration >5.5 mg/dL

Exclusion Criteria:

  • Unable to participate meaningfully in the combined Edu + SM + SCT intervention, including:
  • Unable to read and/or speak English
  • Self-monitoring application is currently available in English only (patients will not be excluded from participation on the basis of race/ethnicity)
  • Cognitively-impaired
  • Physically-impaired
  • Institutionalized or otherwise having limited control over diet
  • Life expectancy of <1 year per dialysis center staff
  • Women who are pregnant or become pregnant during 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: Education (Edu)
Comportemental: Education (Edu)
This intervention will take place during weeks 1-4 at the dialysis center. Each week, study staff will present participants with a brief educational video on: phosphorus binder adherence (week 1), meeting dietary protein needs (week 2), restricting dietary sources of phosphorus (week 3), and eliminating phosphorus-based food additives (week 4). These videos will be loaded onto tablet (Personal Computers) PCs so that participants can easily view them during regular dialysis treatment.
Comparateur actif: Edu + Self-Monitoring (SM)
Comportemental: Education (Edu)
This intervention will take place during weeks 1-4 at the dialysis center. Each week, study staff will present participants with a brief educational video on: phosphorus binder adherence (week 1), meeting dietary protein needs (week 2), restricting dietary sources of phosphorus (week 3), and eliminating phosphorus-based food additives (week 4). These videos will be loaded onto tablet (Personal Computers) PCs so that participants can easily view them during regular dialysis treatment.
Comportemental: SM intervention
During the first 12 weeks of the intervention, a study dietitian will review the participants' records, and provide individualized feedback via a password-protected NYULMC email address. Feedback will be provided twice per week during weeks 1-4, once per week during weeks 5-8, and once every two weeks during weeks 9-12. The email messages will focus on both the importance of self-monitoring and the behavioral targets of the intervention. Feedback will use standardized language rather than specific dietary examples to avoid providing individualized counseling to participants (which is not the purpose of the SM intervention).
Comparateur actif: Edu + SM + Social Cognitive Theory (SCT)
Comportemental: Education (Edu)
This intervention will take place during weeks 1-4 at the dialysis center. Each week, study staff will present participants with a brief educational video on: phosphorus binder adherence (week 1), meeting dietary protein needs (week 2), restricting dietary sources of phosphorus (week 3), and eliminating phosphorus-based food additives (week 4). These videos will be loaded onto tablet (Personal Computers) PCs so that participants can easily view them during regular dialysis treatment.
Comportemental: SM intervention
During the first 12 weeks of the intervention, a study dietitian will review the participants' records, and provide individualized feedback via a password-protected NYULMC email address. Feedback will be provided twice per week during weeks 1-4, once per week during weeks 5-8, and once every two weeks during weeks 9-12. The email messages will focus on both the importance of self-monitoring and the behavioral targets of the intervention. Feedback will use standardized language rather than specific dietary examples to avoid providing individualized counseling to participants (which is not the purpose of the SM intervention).
Comportemental: Social Cognitive Therapy (SCT)
This intervention will be delivered remotely online using the same tablet PCs provided for the SM intervention component of this treatment condition. The behavioral training program will focus on building a sense of self-efficacy with emphasis on mastery experiences that will include emphasizing past successes; setting incremental, easily achievable goals; self-monitoring to stay on track; identifying modifiable barriers to healthy behavior; positive feedback in goal achievement; and developing participant expertise in both the regimen and in problem solving around barriers to adherence.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Proportion of Hemodialysis (HD) patients that are eligible for the study
Délai: 24 Weeks
Measure of feasibility
24 Weeks
Proportion of eligible patients who agree to participate
Délai: 24 Weeks
Measure of feasibility
24 Weeks
Proportion of enrolled participants who complete the study
Délai: 24 Weeks
Measure of Acceptability
24 Weeks

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
8-item Morisky Medication Adherence Survey (MMAS-8)
Délai: 24 Weeks
Used to measure Binder Adherence, has been shown to be a valid and reliable measure of antihypertensive medication adherence
24 Weeks
Reported dietary energy, protein and phosphorus intake
Délai: 2 Weeks
participants will be directed to complete three, non-consecutive food records over the two-week period. Diet record days will include two weekdays (1 dialysis day and 1 non-dialysis day), and one non-dialysis weekend day.
2 Weeks
Normalized protein catabolic rate (nPCR)
Délai: 24 Weeks
The nPCR is an objective measure of protein intake in HD patients based on the accumulation of urea nitrogen in blood between dialysis treatments
24 Weeks
Serum phosphorus.
Délai: 24 Weeks
Pre-dialysis serum phosphorus concentrations are a key secondary clinical endpoint for this intervention. Serum phosphorus is already being measured in participants as part of the routine monthly laboratory blood work, so this information will be obtained from the participant's medical charts.
24 Weeks
Frequency and severity of participant symptoms assessed via an investigator-developed questionnaire
Délai: 24 Weeks
(itching, bone and joint pain, cramping) and phosphorus binders (difficulty defecating, loose or watery stools) will be self-reported via an investigator-developed questionnaire.
24 Weeks
Balance Wise Self-Efficacy for Restricting Dietary Sodium in Hemodialysis Scale
Délai: 24 Weeks
be adapted to focus on adherence to phosphorus binders, dietary phosphorus restrictions and adequacy of protein intake. The self-efficacy questionnaire asks participants' to report their confidence in the next month that they will be able to complete various tasked related to the study intervention. An overall scale, and subscale scores for phosphorus binders, dietary phosphorus restriction and adequacy of protein intake will be computed by summing pertinent items for analyses.
24 Weeks

Collaborateurs et enquêteurs

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

Parrainer

NYU Langone Health

Les enquêteurs

  • Chercheur principal: Mary Sevick, MD, New York University Medical School

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 (Réel)

23 avril 2018

Achèvement primaire (Réel)

1 mai 2018

Achèvement de l'étude (Réel)

1 mai 2018

Dates d'inscription aux études

Première soumission

17 octobre 2016

Première soumission répondant aux critères de contrôle qualité

19 octobre 2016

Première publication (Estimation)

21 octobre 2016

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

31 mai 2018

Dernière mise à jour soumise répondant aux critères de contrôle qualité

30 mai 2018

Dernière vérification

1 mai 2018

Plus d'information

Termes liés à cette étude

Mots clés

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • 16-00817

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

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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