NCT02707471

Brief Summary

Adjuvant endocrine therapy (AET) is a crucial component of treatment used to prevent recurrence and reduce breast cancer-related mortality for breast cancer patients with hormone receptor positive disease. Studies report low rates of adherence to AET (38% to 86%) and in our preliminary work, 65% of breast cancer patients taking AET reported one or more non-adherent medication taking behaviors (e.g., skipped dose, forgot, adjusted dose) in the past month. Symptoms (e.g., arthralgia, vasomotor symptoms) associated with AET are strongly related to non-adherence and early discontinuation of treatment. Poor adherence to AET due to symptoms may compromise the effectiveness of AET. Prior to conducting a clinical trial, we will conduct user testing of the self-management intervention protocol with 20 women. In the proposed randomized clinical trial, 400 women who are taking AET for breast cancer will be randomly assigned to one of two conditions: 1) a self-management intervention for improving adherence and symptom management, or 2) a general health education control condition. The self-management intervention integrates three key theory-based strategies for improving adherence to AET: coping skills training for managing symptoms (e.g., arthralgia, vasomotor symptoms), behavioral strategies for improving medication adherence, and symptom and medication education. The intervention addresses the specific symptoms a woman is experiencing and is designed to meet the needs of women who are at high risk for non-adherence to AET (e.g., low socioeconomic status, low literacy). The self-management intervention is administered by a nurse via the telephone, and combines the use of phone calls and tailored interactive voice messaging based on information exchanged during phone sessions and real-time adherence data obtained from smart medication bottles. Women randomly assigned to the control condition will receive a general health education intervention that is delivered by a nurse via the telephone. This study will take place in the Duke Cancer Institute breast clinic and in community hospitals that are members of the Duke Cancer Network, which will allow access to women receiving care outside the medical center setting and increase generalizability of findings to a variety of settings. Adherence to AET will be assessed over the 18 month period following study enrollment using wireless smart medication bottles that provide real-time adherence data and pill counts completed by study staff during in-person study assessments. Patient-reported outcome measures assessing symptoms, perceived necessity of AET, concerns about AET, and self-efficacy will be obtained at baseline and 3, 6, 12, and 18 months. To increase the likelihood of later implementation of the self-management intervention, the cost effectiveness of the intervention will be evaluated.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
312

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Mar 2017

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 3, 2016

Completed
11 days until next milestone

First Posted

Study publicly available on registry

March 14, 2016

Completed
1 year until next milestone

Study Start

First participant enrolled

March 14, 2017

Completed
6.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 9, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 9, 2023

Completed
Last Updated

November 13, 2023

Status Verified

November 1, 2023

Enrollment Period

6.7 years

First QC Date

March 3, 2016

Last Update Submit

November 10, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Percent daily adherence assessed over 18 months

    The SM-AET protocol includes eight sessions and two maintenance calls administered by a nurse via the phone. The intervention also includes interactive voice messaging that is tailored based on participants' medication taking behavior. Adherence to AET will be assessed using smart pill bottles (i.e., bottle opening and percent of pills remaining).

    18 month

Secondary Outcomes (14)

  • Change in medication taking behaviors

    Baseline, 3 months, 6 months, 12 months, 18 months

  • Change in Menopausal Symptoms and Symptom Interference

    Baseline, 3 months, 6 months, 12 months, 18 months

  • Change in Pain and Joint Stiffness/Aching and Symptom Interference

    Baseline, 3 months, 6 months, 12 months, 18 months

  • Change in Sleep Problems

    Baseline, 3 months, 6 months, 12 months, 18 months

  • Change in Fatigue

    Baseline, 3 months, 6 months, 12 months, 18 months

  • +9 more secondary outcomes

Other Outcomes (1)

  • Treatment Credibility and Satisfaction

    3 months, 6 months

Study Arms (2)

SM-AET

EXPERIMENTAL

a self-management intervention for enhancing skills to improve adherence and reduce symptom interference (SM-AET) (active intervention group)

Behavioral: SM-AET

general health education Intervention

OTHER

general health education Intervention (control group)

Behavioral: general health education

Interventions

SM-AETBEHAVIORAL

self-management for improving adherence and reducing symptom interference (SM-AET)

SM-AET

general health education intervention that focuses on improving overall health.

general health education Intervention

Eligibility Criteria

Age21 Years+
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • diagnosis of Stage I to III breast cancer
  • hormone receptor positive tumor defined as any positivity of estrogen or progesterone receptor
  • completed local definitive treatment (i.e., surgery, chemotherapy, radiation),
  • within 12 months of beginning AET
  • at least 18 months of AET recommended

You may not qualify if:

  • \<21 years of age,
  • severe cognitive or hearing impairment that is documented in the medical record
  • unable to provide meaningful consent (e.g., severe cognitive impairment).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Duke University Medical Center

Durham, North Carolina, 27705, United States

Location

Related Publications (1)

  • Shelby RA, Dorfman CS, Bosworth HB, Keefe F, Sutton L, Owen L, Corsino L, Erkanli A, Reed SD, Arthur SS, Somers T, Barrett N, Huettel S, Gonzalez JM, Kimmick G. Testing a behavioral intervention to improve adherence to adjuvant endocrine therapy (AET). Contemp Clin Trials. 2019 Jan;76:120-131. doi: 10.1016/j.cct.2018.11.010. Epub 2018 Nov 22.

Study Officials

  • Rebecca Shelby, PhD

    Duke University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 3, 2016

First Posted

March 14, 2016

Study Start

March 14, 2017

Primary Completion

November 9, 2023

Study Completion

November 9, 2023

Last Updated

November 13, 2023

Record last verified: 2023-11

Locations