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STAMP: Sharing and Talking About My Preferences

STAMP: Sharing and Talking About My Preferences

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03137459
Acronym
STAMP
Enrollment
909
Registered
2017-05-02
Start date
2017-07-17
Completion date
2021-06-30
Last updated
2021-09-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Care Planning (ACP)

Keywords

Transtheoretical Model (TTM)

Brief summary

The purpose of this study is to examine the effect of an individually transtheoretical model (TTM) tailored intervention on the completion of advance care planning (ACP) behaviors.

Detailed description

This will be a randomized controlled trial examining the effect of an individually TTM-tailored intervention on the proportion of middle-age and older persons recruited from primary care practices who complete four ACP behaviors (completion of a living will, assignment of a health care proxy, and communication with loved ones and with their clinician about views on quality versus quantity of life) over six months, compared with usual care.

Interventions

BEHAVIORALTranstheoretical Model (TTM) of health behavior change

Participants are assessed for four different behaviors that together represent complete ACP engagement: communication with loved ones about views on quality of life versus quantity of life, communication with clinicians about views on quality of life versus quantity of life, assignment of a health care surrogate, and completion of a living will. The system takes the results of the assessment and results in an individualized feedback report. For individuals in early stages of change for a given behavior, the feedback focuses on changing attitudes, a necessary prerequisite for changing behavior, by addressing common barriers and by reminding individuals they can engage in small steps.

OTHERUsual Care

Participants are assessed for four different behaviors that together represent complete ACP engagement: communication with loved ones about views on quality of life versus quantity of life, communication with clinicians about views on quality of life versus quantity of life, assignment of a health care surrogate, and completion of a living will. Participants in this group will not receive any components of the TTM intervention.

Sponsors

National Institute of Nursing Research (NINR)
CollaboratorNIH
Yale University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
55 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Participants will be community-dwelling persons with an upcoming primary care visit in the study's practice settings.

Exclusion criteria

* Severe hearing impairment, defined as being unable to participate in a telephone conversation. * Severe visual impairment, defined as being unable to read large-print materials. * Moderate to severe cognitive impairment, defined as either a diagnosis of dementia and/or short-term recall of \<2/3 objects at 2 minutes. * Primary language other than English. * Having completed all of the four ACP behaviors that are the focus of this study.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Who Completed Four ACP Activities: Communication With Loved Ones About Quality Versus Quantity of Life, Completion of a Living Will, Assignment of a Healthcare Agent, and Confirmation of Documents in the Electronic Health Record.6 monthsThe primary outcome of the study is to assess the proportion of participants that have completed the four ACP behaviors. The measure will be coded as a binary outcome where 'yes' indicates the completion of all 4 behaviors and 'no' indicates no completing the 4 behaviors.

Secondary

MeasureTime frame
Number of Participants Who Complete a Living Will6-months
Number of Participants Who Assign a Healthcare Agent6 months
Number of Participants Who Communicate With a Loved One About Quality Versus Quantity of Life6 months

Countries

United States

Participant flow

Recruitment details

20 ambulatory internal medicine practices, matched in pairs according to practice type and percentage of patients age 65+, non-White, and receiving Medicaid

Pre-assignment details

Because randomization occurred at the level of the practice, participants' assignment to group was determined before any information was known about them. However, there were participants who were excluded from they study before beginning any study procedures. These included: 1 matched set of practices was excluded for failing to meet minimum enrollment with 12 participants; 6 participants consented in error; 25 participants refused the baseline interview.

Participants by arm

ArmCount
STAMP: Computer-Tailored Intervention Consisting of Assessment With Feedback Report
Participants enrolled at the intervention site will receive four contacts, at baseline, two, four and six months. Each of the first three contacts consists of an integrated assessment and intervention feedback report, using an expert system. Transtheoretical Model (TTM) of health behavior change: Participants are assessed for four different behaviors that together represent complete ACP engagement: communication with loved ones about views on quality of life versus quantity of life, communication with clinicians about views on quality of life versus quantity of life, assignment of a health care surrogate, and completion of a living will. The system takes the results of the assessment and results in an individualized feedback report. For individuals in early stages of change for a given behavior, the feedback focuses on changing attitudes, a necessary prerequisite for changing behavior, by addressing common barriers and by reminding individuals they can engage in small steps.
455
Usual Care
Participants enrolled in control sites will receive four assessment contacts on the same schedule and in the same manner as the participants enrolled in intervention sites. Usual Care: Participants are assessed for four different behaviors that together represent complete ACP engagement: communication with loved ones about views on quality of life versus quantity of life, communication with clinicians about views on quality of life versus quantity of life, assignment of a health care surrogate, and completion of a living will. Participants in this group will not receive any components of the TTM intervention.
454
Total909

Withdrawals & dropouts

PeriodReasonFG000FG001
2-month AssessmentAcutely ill62
2-month AssessmentRefused assessment75
2-month AssessmentUnable to reach4232
2-month AssessmentWithdrawal by Subject133
4-month AssessmentAcutely ill23
4-month AssessmentDeath42
4-month AssessmentRefused assessment2410
4-month AssessmentUnable to reach4429
4-month AssessmentWithdrawal by Subject42
6-monthsAcutely ill11
6-monthsDeath02
6-monthsLost to Follow-up1411
6-monthsRefused assessment63

Baseline characteristics

CharacteristicTotalUsual CareSTAMP: Computer-Tailored Intervention Consisting of Assessment With Feedback Report
Age, Continuous68.3 years
STANDARD_DEVIATION 8.3
67.8 years
STANDARD_DEVIATION 8
68.9 years
STANDARD_DEVIATION 8.5
Baseline stage of change: communication about quality versus quantity of life
Action/maintenance
593 Participants289 Participants304 Participants
Baseline stage of change: communication about quality versus quantity of life
Contemplation
106 Participants46 Participants60 Participants
Baseline stage of change: communication about quality versus quantity of life
Missing
2 Participants2 Participants0 Participants
Baseline stage of change: communication about quality versus quantity of life
Precontemplation
192 Participants112 Participants80 Participants
Baseline stage of change: communication about quality versus quantity of life
Preparation
16 Participants5 Participants11 Participants
Baseline stage of change: healthcare agent
Action/maintenance
188 Participants105 Participants83 Participants
Baseline stage of change: healthcare agent
Contemplation
444 Participants217 Participants227 Participants
Baseline stage of change: healthcare agent
Missing
2 Participants2 Participants0 Participants
Baseline stage of change: healthcare agent
Precontemplation
168 Participants99 Participants69 Participants
Baseline stage of change: healthcare agent
Preparation
107 Participants31 Participants76 Participants
Baseline stage of change: living will
Action/maintenance
228 Participants120 Participants108 Participants
Baseline stage of change: living will
Contemplation
448 Participants224 Participants224 Participants
Baseline stage of change: living will
Missing
3 Participants3 Participants0 Participants
Baseline stage of change: living will
Precontemplation
150 Participants86 Participants64 Participants
Baseline stage of change: living will
Preparation
80 Participants21 Participants59 Participants
Education
<=12th grade
233 Participants96 Participants137 Participants
Education
>12th grade
676 Participants358 Participants318 Participants
Employment
Employed
351 Participants194 Participants157 Participants
Employment
Unemployed
558 Participants260 Participants298 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
22 Participants10 Participants12 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
880 Participants439 Participants441 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
7 Participants5 Participants2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
5 Participants2 Participants3 Participants
Race (NIH/OMB)
Asian
12 Participants6 Participants6 Participants
Race (NIH/OMB)
Black or African American
167 Participants91 Participants76 Participants
Race (NIH/OMB)
More than one race
15 Participants6 Participants9 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
19 Participants10 Participants9 Participants
Race (NIH/OMB)
White
691 Participants339 Participants352 Participants
Sex: Female, Male
Female
554 Participants262 Participants292 Participants
Sex: Female, Male
Male
355 Participants192 Participants163 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 4550 / 454
other
Total, other adverse events
0 / 4550 / 454
serious
Total, serious adverse events
0 / 4550 / 454

Outcome results

Primary

Number of Participants Who Completed Four ACP Activities: Communication With Loved Ones About Quality Versus Quantity of Life, Completion of a Living Will, Assignment of a Healthcare Agent, and Confirmation of Documents in the Electronic Health Record.

The primary outcome of the study is to assess the proportion of participants that have completed the four ACP behaviors. The measure will be coded as a binary outcome where 'yes' indicates the completion of all 4 behaviors and 'no' indicates no completing the 4 behaviors.

Time frame: 6 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
STAMP: Computer-Tailored Intervention Consisting of Assessment With Feedback ReportNumber of Participants Who Completed Four ACP Activities: Communication With Loved Ones About Quality Versus Quantity of Life, Completion of a Living Will, Assignment of a Healthcare Agent, and Confirmation of Documents in the Electronic Health Record.64 Participants
Usual CareNumber of Participants Who Completed Four ACP Activities: Communication With Loved Ones About Quality Versus Quantity of Life, Completion of a Living Will, Assignment of a Healthcare Agent, and Confirmation of Documents in the Electronic Health Record.37 Participants
95% CI: [0.014, 0.105]
95% CI: [1.14, 2.93]
Secondary

Number of Participants Who Assign a Healthcare Agent

Time frame: 6 months

Population: Individuals who had not assigned a healthcare agent at baseline

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
STAMP: Computer-Tailored Intervention Consisting of Assessment With Feedback ReportNumber of Participants Who Assign a Healthcare Agent122 Participants
Usual CareNumber of Participants Who Assign a Healthcare Agent68 Participants
95% CI: [0.066, 0.201]
95% CI: [1.22, 2.47]
Secondary

Number of Participants Who Communicate With a Loved One About Quality Versus Quantity of Life

Time frame: 6 months

Population: Individuals who had not communicated about quality versus quantity of life at baseline

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
STAMP: Computer-Tailored Intervention Consisting of Assessment With Feedback ReportNumber of Participants Who Communicate With a Loved One About Quality Versus Quantity of Life93 Participants
Usual CareNumber of Participants Who Communicate With a Loved One About Quality Versus Quantity of Life90 Participants
95% CI: [-0.05, 0.188]
95% CI: [0.72, 1.85]
Secondary

Number of Participants Who Complete a Living Will

Time frame: 6-months

Population: Participants who had not completed a living will at baseline

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
STAMP: Computer-Tailored Intervention Consisting of Assessment With Feedback ReportNumber of Participants Who Complete a Living Will99 Participants
Usual CareNumber of Participants Who Complete a Living Will68 Participants
95% CI: [0.014, 0.15]
95% CI: [0.96, 2]

Source: ClinicalTrials.gov · Data processed: Feb 23, 2026