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CompletedNCT02593032(TVHST2DM)Updated Sep 15, 2026Results posted

Effects of Use of a Connected Pillbox On Medication Adherence

An interventional study of Pre-filled trays in Diabetes Mellitus, Hypertension and Hyperlipidemia, sponsored by University of Pennsylvania. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-15.

Sponsored by University of Pennsylvania · Not applicable, Interventional, and Supportive care

Phase
Not applicable
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Medication adherence is defined as the extent to which a patient takes his or her medication as prescribed by their healthcare provider. One third to one half of all patients in the United States do not take their medication as directed, resulting in nearly $100B in avoidable hospital costs per year. Recent efforts to improve medication adherence in patients with multiple comorbidities have turned to case management and disease management programs. Connected monitoring devices offer an alternative- or supplement- to frequent nurse visits and outreach. These devices enable frequent monitoring and intervention but can also generate large volumes of data that can be difficult for care teams to manage. The present study explores the use of one such device- a technology-enabled, connected pillbox. Given the continued emphasis on bending the cost curve in US healthcare, clinical validation of tools that may improve the management of costly chronic diseases, such as diabetes, is essential.

Read the detailed description

Randomized Control Trial Patients in the research treatment group receive pre-filled, 3x7 disposable trays that separate their medication by dose and time (e.g. morning, afternoon, evening). These pre-filled trays are inserted into a connected, weekly pillbox that detects when pills are removed from its wells. Using this information, TowerView Health system is able to send automated text messages or phone reminders to patients to take forgotten or ignored medication doses. Medication adherence data from deployed pillboxes populates a software platform, which a research coordinator can access.

Patients who miss 3 consecutive doses or 5 doses out of 12 over a 4-day period trigger an alert for the study research coordinator who can contact the patient via phone call. The research coordinator follows a scripted motivational interview in his or her outreach to determine the etiology of non-adherence. Patients reporting worrisome symptoms will be instructed to contact their provider directly and/or go to the emergency room for immediate attention. The investigator acknowledges that the current study actually involves multiple interventions: 1. The pre-filled medication trays are provided by a pharmacist, which overcomes medication access issues as well as the inconvenience of manually organizing medications. 2. The electronic pillbox, which monitors adherence that triggers text message or phone reminders in instances where patients forget or ignore medication doses 3. Research coordinator alerts, which trigger outreach events that employ a motivational interview in order to improve patient adherence.

02

Conditions studied

  • Diabetes Mellitus
  • Hypertension
  • Hyperlipidemia

Keywords

  • hemoglobin A1c protein, human > 7.5
03

In context

Diabetes Mellitus

10,925 studies on the registry are indexed under Diabetes Mellitus; 1,319 are open to participants now.

This study's enrollment of 50 is below the median of 80 across 8,367 interventional studies indexed under Diabetes Mellitus.

Browse Diabetes Mellitus studies →

Lead sponsor

University of Pennsylvania is the lead sponsor of 1,635 studies on the registry; 239 are open to participants now.

Of its 154 completed or terminated interventional studies of FDA-regulated products, 104 (68%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:• Insurance and pharmacy coverage with Independence Blue Cross (IBC); 18 years or older; Current diagnosis of Type II Diabetes Mellitus, Hypertension or Hyperlipidemia and taking 5 or more medications; Less than 80% medication adherence; Able to communicate in English; Willing to give informed consent, receive recruitment (invitation)letter from IBC

Exclusion Criteria: Known alcohol or illicit drug abuse; Significant cognitive impairment at baseline as defined by the Animal Naming Screening Tool; Residence in a care facility that provides medication on schedule; Unwilling to use TowerView Health's connected pillbox and accompanying medication trays; Any active medical or psychiatric diagnosis that, based on the clinical assessment of the research team, would prevent the study participant from completing the trial such as: markedly shortened life expectancy (e.g. diagnosis of metastatic cancer, end stage renal disease on dialysis, New York Heart Association (NYHA) Class III or IV heart failure, active psychosis or suicidal ideation, etc.) or dexterity/motor impairments (e.g. severe arthritis, neuromuscular disorders, etc); and Lack a mobile or land line phone.

05

Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Factorial assignment
Masking
Single (Participant)
Enrollment
50 participants (actual)

Study arms

  • Experimental
    Randomized Treatment

    Patients in the treatment group will begin receiving their medications in pre-filled trays from Friendship Pharmacy. Patients will receive 5 trays on a monthly basis in order to accommodate a 30-day, insurance-reimbursed fill schedule.

    Device: Pre-filled trays

  • No intervention
    Control Arm

    Patients in the control arm will receive usual care and can continue using their existing pharmacy.

Interventions

  • DevicePre-filled trays

    Randomized Control Trial Patients in the research treatment group receive pre-filled, 3x7 disposable trays that separate their medication by dose and time (e.g. morning, afternoon, evening). These pre-filled trays are inserted into a connected, weekly pillbox that detects when pills are removed from its wells.

06

What researchers measure

Primary outcomes

  1. Percent of Participants With Adherence at Month 6

    The primary outcome of interest in the present study is improvement in adherence. We will determine if a multi-modal intervention focused on improving medication adherence among adults who were previously non-adherent results in improved medication adherence over a 6-month interval averaged across months 1 to 6. This will be reported as the percent persistent on therapy at 6 months across the three conditions (diabetes, HTN, hyperlipidemia)

    Time frame: 6-month interval

07

Results

Posted Aug 4, 2020
Limitations and caveats
Early termination due to funding constraints, leading to a smaller sample size than originally proposed.

Participant flow

Participant flow — Overall Study
MilestoneRandomized TreatmentControl Arm
Started1733
Completed1733
Not completed00

Outcome measures

PrimaryPercent of Participants With Adherence at Month 6

The primary outcome of interest in the present study is improvement in adherence. We will determine if a multi-modal intervention focused on improving medication adherence among adults who were previously non-adherent results in improved medication adherence over a 6-month interval averaged across months 1 to 6. This will be reported as the percent persistent on therapy at 6 months across the three conditions (diabetes, HTN, hyperlipidemia)

Time frame:
6-month interval
Reported as:
Number · % Participants Persistent on Therapy
Percent of Participants With Adherence at Month 6
% Participants Persistent on TherapyRandomized TreatmentControl Arm
Percent of Participants With Adherence at Month 69140
Statistical analysis
  • Randomized Treatment vs Control Arm · t-test, 2 sided · p = <0.05 (This is the calculated p-value, not a threshold.) · Treatment difference in %: 12

Adverse events

Collected over 6 months. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Randomized Treatment0/17 (0%)0/17 (0%)0/17 (0%)
Control Arm0/33 (0%)0/33 (0%)0/33 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)Randomized TreatmentControl ArmTotal
Mean62 ± 3.265 ± 3.464 ± 3.3
Sex: Female, Male
Sex: Female, Male(Participants)Randomized TreatmentControl ArmTotal
Female112536
Male6814
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Randomized TreatmentControl ArmTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American112435
White6915
More than one race000
Unknown or Not Reported000
Number with self-reported low adherence (Self-reported adherence status to all medications)
Number with self-reported low adherence (Self-reported adherence status to all medications)(Number with self-reported low adherence)Randomized TreatmentControl ArmTotal
Number153146
08

Study locations

1 site
  • University of Pennsylvania
    Philadelphia, Pennsylvania 19104, United States
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Dec 22, 2014

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 15, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02593032
Lead sponsor
University of Pennsylvania
Collaborators
TowerView Health
Responsible party
Sponsor
First posted
Oct 30, 2015
Start date
Feb 2015
Primary completion
Apr 2017
Completion
Sep 21, 2017
Results posted
Aug 4, 2020
Last update
Sep 15, 2026

Study contacts

Nalaka S Gooneratne, MD
principal investigator · University of Pennsylvannia

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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