Journeys to Wellness: A Transplant Candidate Study

University of Minnesota (UMN)

Status and phase: Completed; Phase 3

Conditions: End-stage Renal Disease

Treatments: Behavioral: Support group; Behavioral: tMBSR

Study type: Interventional

Funder types: Other; NIH

Identifiers

NCT01254214

0907S70361

2P01DK013083 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

The purpose of this study is to determine whether telephone-adapted Mindfulness Based Stress Reduction (tMBSR) - a program of mindfulness meditation and gentle Hatha yoga delivered mostly by phone, is an effective program to reduce symptoms (anxiety, depression, sleep) and improve quality of life for people waiting for a kidney transplant. Participants will be randomly assigned to tMBSR or to a support group emphasizing communication skills and selecting resources. Both 8-week programs include an initial in-person meeting, 6 weekly teleconference calls, and conclude with an in-person meeting. Participants will complete questionnaires at 3 timepoints over 6 months, and if they receive a transplant, will complete additional questionnaires. Participants will complete sleep diaries and wear Actiwatches (similar to a wristwatch) for one week before programs start, and when programs end, to measure sleep. Participants will provide saliva samples, over 3 days before programs start, and again when programs end, to measure salivary cortisol, an indicator of stress. tMBSR participants will record daily home meditation practice.

Full description

Primary Aims

1. Test the efficacy of a telephone-adapted Mindfulness-Based Stress Reduction (tMBSR) program to reduce symptoms and improve the quality of life of kidney transplant candidates by 8-weeks and by 6-month follow-up.
2. Evaluate the impact of tMBSR on sleep measured by actigraphy, and on physiologic stress, as indicated by alteration in the slope of diurnal salivary cortisols, measured before and at the end of the 8-week active intervention period.

Secondary Aims

1. Evaluate the impact of tMBSR on perceptions of transplant surgery (treatment satisfaction, pain) and of Health Related Quality of Life (HRQL) at 2-, 6- and 12-mos post-transplant surgery.
2. Design a full-scale randomized controlled trial (RCT) of the effectiveness and cost-effectiveness of tMBSR.

Hypotheses

• Primary: The tMBSR group will report better outcomes than an attention control support group (SG) on standardized scales for anxiety, depression, and sleep quality and health-related quality of life at 8 weeks and 6 month follow-up.
• Secondary: The tMBSR group will report better outcomes than the SG group on actigraphy-derived sleep parameters and diurnal salivary cortisol patterns.
• Tertiary: Candidates who attended mindfulness training will report greater treatment satisfaction, less distress from pain with transplant surgery and better HRQL 2 months, 6 months and 1 year after kidney transplantation.

Rationale for study : For patients with living with kidney failure, the wait for new kidney is a stressful time. Pharmacologic therapies for managing symptoms of stress increase risks for side effects and non-adherence. Mindfulness-based stress reduction (MBSR), a non-pharmacologic program of training in mindfulness meditation, could help these patients reduce their symptom distress without increasing these other risks.

Long-range Goal: To develop evidence-based recommendations for non-pharmacologic strategies that provide symptom relief to transplant patients, and are safe, practical and cost-effective.

Interventions: The tMBSR program includes the curricular content of the standard 8-week MBSR program (2002 Instructor's Manual). A trained teacher provides instruction in meditation techniques including the body-scan, standing, sitting and walking meditations, and gentle Hatha yoga. Whereas the standard MBSR is conducted as 8 weekly 2.5 hour classes with a one day retreat between weeks 6 and 7, the telephone-adapted MBSR program begins with 5 hour-day workshop to introduce the techniques, followed by 6 weekly 1 ½ hour group teleconferences with the teacher to discuss the class's experiences with meditation practice, and ends with a 5 hour retreat in week 8. Home practice expectations are 25 minutes per day, 6 days a week for tMBSR.

The attention control consists of two 90 minute in-person workshops and 6 1-hour teleconference calls. An experienced facilitator emphasizes communication skills and group support.

Recruiting Methods:

1. Direct mail to candidates being followed by the Transplant Information Services Office with follow-up calls; invitation letters and brochures sent from the P01 Clinical Core.
2. Posters and flyers in medical clinics.
3. Referral by health providers - in- service presentations to the pre-transplant coordinators who manage the kidney candidates;
4. Additional invitations letters mailed by the coordinator who maintains the waitlist for the United Network for Organ Sharing (UNOS); study brochure or invitation letters mailed with waitlist acceptance letters.

Potential Measures of intervention 'dose' or enactment:

1. Mindfulness scale: Mindful Awareness Attention Scale (MAAS);
2. Meditation practice time.

Exploratory Outcomes: Post-transplant impact on Quality of Life (QOL) by Short-Form-36 item(SF-36), pain and satisfaction with transplant hospitalization.

Evaluation Methods:

1. Self-report, mailed questionnaires completed at study weeks 0, 8, 26 (primary outcomes and QOL measures),
2. Actigraphy recording for 1 week prior to the intervention and during the last week of the intervention; cortisol collection for 3 days during same time periods.
3. Post transplant evaluations - 2 and 6 mos; 1 year coordinated with Transplant Database

Duration of Treatment: 8 weeks

Study Duration: Participants are followed up to one year post-kidney transplant.

Statistical Considerations: This study is powered to compare MBSR and SG, on the primary endpoint, on the State Trait Anxiety Inventory (STAI), at 8 weeks. Randomization may be stratified by dialysis (yes/no) and history of diabetes (yes/no).

Enrollment: 63 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Candidate on the United Network for Organ Sharing (UNOS) wait list for a kidney or kidney-pancreas or evaluated as eligible for candidacy at the UMN
• Aged 18 or older
• English-speaking
• Literate
• Mentally intact
• Able to use the telephone to participate in 6 weekly teleconferences
• Able to attend 2 in-person classes in a Minnesota Metro area
• Able to comply with study monitoring requirements
• Receiving standard medical follow-up care
• Willing to complete the informed consent process

Exclusion criteria

• Prior transplant
• Medically unstable (a hospital admission for non-elective purposes in the last 3 months or major non-transplant surgery planned in the next 3 months)
• Serious preexisting mental health issues: suicidality or thought disorder/psychosis; or delirium or substance abuse
• Not expected to be on the waiting list > 3 months (e.g., acceptable living donor has been identified and scheduled)
• Prior MBSR class or regularly practicing mindfulness meditation (twice a week or more)
• Not receiving standard medical care.

Trial design

Primary purpose: Supportive Care

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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63 participants in 2 patient groups

tMBSR

Experimental group

Description:

telephone-adapted Mindfulness Based Stress Reduction (tMBSR) is an 8-week program of training in mindfulness meditation consisting of two in-person group meetings and 6 conference calls, led by a trained meditation teacher.

Treatment:

Behavioral: tMBSR

Support Group

Active Comparator group

Description:

The Support Group is a group intervention led by a trained facilitator and designed to match the intervention for time, attention and social support

Treatment:

Behavioral: Support group