Win prizes, lower blood pressure: smartphone lottery boosts medication adherence
NCT ID NCT04114669
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether a smartphone-based lottery incentive program could help people with high blood pressure take their medication more regularly. Over 400 participants with poorly controlled blood pressure were randomly assigned to receive the lottery program or usual care for 6 months. The main goal was to see if the program led to a meaningful drop in systolic blood pressure.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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401 people
The number who actually took part.
- Started
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Jul 2020
- Finished
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Sep 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * A diagnosis of hypertension. * An active prescription for ≥1 antihypertensive medication (any of the following classes: thiazide diuretic, ACE inhibitor, angiotensin receptor blocker, beta blocker, calcium channel blocker, centrally acting alpha agonist, direct vasodilator). * 1 ambulatory systolic blood pressure ≥140 mmHg (on therapy). * Suboptimal adherence (self-report). Exclusion Criteria: * Incarcerated * Pregnant * Unable to use study software (Way To Health) in English or Spanish * Unable/unwilling to consent * Clear barrier to technology use (e.g. visual or hearing impairment) * Projected life expectancy \<12 months
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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NYU Langone Health
New York, New York, 10016, United States
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