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Cardiovascular Disease (CKD)NCT02940743

Behavioral Management of Phosphorus in Hemodialysis Patients

A study testing Education (Edu), SM intervention and Social Cognitive Therapy (SCT) in people with Cardiovascular Disease (CKD) and Hyperphosphatemia, run by NYU Langone Health at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 19 to 89 years
What is being tested?
Education (Edu), SM intervention and Social Cognitive Therapy (SCT)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteUnited States
Study dates
23 Apr 2018to 1 May 2018
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 19 to 89 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

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

Who cannot join

  • 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

Trial locations and contacts

1 site in 1 country.

United States1 site
  • New York University School of Medicine

    New York, New York, 10016

Other trials in United States

About this study

Official title: 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.

Read the detailed description

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.

Being tested
Education (Edu), SM intervention, Social Cognitive Therapy (SCT)
Keywords
Hemodialysis
Medical subject headings
Cardiovascular Diseases, Hyperphosphatemia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Education (Edu)Behavioural

    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.

  • SM interventionBehavioural

    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).

  • Social Cognitive Therapy (SCT)Behavioural

    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.

Study groups in NCT02940743
Study groupRoleWhat they receive
Education (Edu)Active comparatorNot described
Receives: Behavioral: Education (Edu)
Edu + Self-Monitoring (SM)Active comparatorNot described
Receives: Behavioral: Education (Edu); Behavioral: SM intervention
Edu + SM + Social Cognitive Theory (SCT)Active comparatorNot described
Receives: Behavioral: Education (Edu); Behavioral: SM intervention; Behavioral: Social Cognitive Therapy (SCT)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Proportion of Hemodialysis (HD) patients that are eligible for the study

    Measure of feasibility

    Measured: 24 Weeks

  2. Proportion of eligible patients who agree to participate

    Measure of feasibility

    Measured: 24 Weeks

  3. Proportion of enrolled participants who complete the study

    Measure of Acceptability

    Measured: 24 Weeks

Secondary outcomes (6)
  1. 8-item Morisky Medication Adherence Survey (MMAS-8)

    Used to measure Binder Adherence, has been shown to be a valid and reliable measure of antihypertensive medication adherence

    Measured: 24 Weeks

  2. Reported dietary energy, protein and phosphorus intake

    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.

    Measured: 2 Weeks

  3. Normalized protein catabolic rate (nPCR)

    The nPCR is an objective measure of protein intake in HD patients based on the accumulation of urea nitrogen in blood between dialysis treatments

    Measured: 24 Weeks

  4. Serum phosphorus.

    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.

    Measured: 24 Weeks

  5. Frequency and severity of participant symptoms assessed via an investigator-developed questionnaire

    (itching, bone and joint pain, cramping) and phosphorus binders (difficulty defecating, loose or watery stools) will be self-reported via an investigator-developed questionnaire.

    Measured: 24 Weeks

  6. Balance Wise Self-Efficacy for Restricting Dietary Sodium in Hemodialysis Scale

    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.

    Measured: 24 Weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Oct 2016 (estimated)
  2. Study start23 Apr 2018
  3. Primary completion1 May 2018
  4. Study completion1 May 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02940743
Sponsor's protocol ID
16-00817
Status last verified
May 2018
First submitted
17 Oct 2016
Last updated
31 May 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Education (Edu), SM intervention and Social Cognitive Therapy (SCT) in people with Cardiovascular Disease (CKD) and Hyperphosphatemia, run by NYU Langone Health at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 31 May 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Proportion of Hemodialysis (HD) patients that are eligible for the study (time frame: 24 Weeks). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 May 2018.

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