Initial digital outreach increases 14-day statin refills ~20% over usual communication.
RR 1.20
95% CI 1.10-1.30
n=20,604
14.4% vs 12.0% at 14-day refill after each randomization; 28-day follow-up
Does this change practice?
Where experts agree
Multiple experts highlight that while a second digital nudge helped non-responders refill statins, switching the communication channel offered no additional benefit.
What this trial adds
Experts see ADHERE-ASCVD as proof that digital nudges can modestly improve statin refills, but the persistently low overall refill rates temper enthusiasm about real-world impact.
Published field read
Cardiologists acknowledge that adaptive digital outreach statistically improved statin refills over usual communication, but several note the absolute gains were small and overall adherence remained low. There is agreement that switching communication channels as a second nudge added no extra benefit, while a repeated nudge to non-responders did help. The live question is whether these modest digital interventions can be scaled or refined enough to meaningfully move long-term cardiovascular outcomes.
Still open
Questions raised in published commentary
Experts note that overall refill rates remained low even in the intervention arm, leaving open whether digital outreach alone can produce clinically meaningful improvements in long-term statin adherence.
The trial investigators mentioned plans to extend adaptive digital outreach to heart failure and to examine the role of comorbidities, but it is unclear how these refinements will change outcomes.
Context from published commentary. Source summaries are not a new guideline recommendation.
Who says what
Ankeet BhattPresenting authorKaiser Permanente Division of Research
“Statins are very effective in lowering cardiovascular risk. However, adherence to this treatment is suboptimal nationally. Finding strategies that help people not miss refilling these potentially life-saving medicines was our motivation for this work, and we were pleased to see that we found a strategy that was successful.”
Previewed the trial as a test of whether a text, email, or portal message can improve statin adherence, framing it as part of the broader evolution of digital health in prevention.
Ștefan BusnatuLive reportingCarol Davila University of Medicine and Pharmacy
Reported from the live Q&A that a similar adaptive digital outreach program is planned for heart failure and that investigators will look more closely at comorbidities.
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Full evidence
Why the trial, key points, tables, limitations, PICO, abstract, media & sources
Why the trial?
Many patients with atherosclerotic cardiovascular disease become non-adherent to statins within a few years, forfeiting proven benefit. ADHERE-ASCVD asked whether adaptive digital outreach can durably improve statin adherence.
Does an adaptive, sequential digital outreach strategy improve short-term statin refill in adults with established ASCVD or high ASCVD risk and recent nonadherence?
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Key Points
To evaluate whether an adaptive, sequential digital outreach strategy improves short-term statin refills compared with usual communication among adults with established atherosclerotic cardiovascular disease or high risk and recent nonadherence.
Pragmatic, health system–embedded, 2-stage sequential, multiple assignment, randomized trial (SMART) with a prospective randomized open blinded end point (PROBE) design (N=20,604; ClinicalTrials.gov NCT07522645).
Participants with recent statin nonadherence were randomized 1:1:1:1 to secure portal messaging, SMS text messaging, nonsecure email, or usual communication.
Nonresponders within 14 days underwent a prespecified second-stage randomization to repeat the same outreach, switch modalities, or receive usual communication, with cumulative follow-up through 28 days.
Initial digital outreach increased 14-day statin refills compared with usual communication (14.4% vs 12.0%; adjusted risk difference, 2.3 percentage points [95% CI, 1.3-3.4]; adjusted risk ratio, 1.20 [95% CI, 1.10-1.30]).
Among initial nonresponders, second-stage outreach further improved refills vs usual communication (13.0% vs 10.4%; adjusted risk difference, 2.5 percentage points [95% CI, 1.3-3.7]; adjusted risk ratio, 1.25 [95% CI, 1.11-1.39]), while switching communication modalities showed no advantage over repeating the same modality (13.2% vs 12.5%; adjusted risk ratio, 1.06 [95% CI, 0.94-1.17]).
Cumulative 28-day statin refill rates were significantly higher among participants receiving any digital outreach compared with usual communication (24.9% vs 21.2%; adjusted hazard ratio, 1.21 [95% CI, 1.13-1.30]).
Evidence details
What drove the result?
Outcome
Outreach
Usual comm
14-day statin refill (initial randomization)
14.4%
12.0%
aRD 2.3 pp (95% CI 1.3-3.4); aRR 1.20 (1.10-1.30)
14-day refill after second-stage outreach (initial nonresponders)
13.0%
10.4%
aRR 1.25 (1.11-1.39) · switching modality added nothing over repeating (13.2% vs 12.5%; aRR 1.06, 0.94-1.17)
Cumulative statin refill through 28 days
24.9%
21.2%
aHR 1.21 (1.13-1.30) for any digital outreach
Limitations & tradeoffs
Representation
conducted in a single integrated system (Kaiser Permanente Northern California), which may limit generalizability.
Design limitations
open-label PROBE design (only endpoint ascertainment was blinded), and short-term refill is a surrogate for sustained adherence and cardiovascular outcomes.
Structured PICO
Does an adaptive, sequential digital outreach strategy improve short-term statin refill in adults with established ASCVD or high ASCVD risk and recent nonadherence?
P
Population
20,604 adults (mean age 54.8 years, 40.9% female) with established ASCVD or high risk and recent statin nonadherence, followed for 28 days.
I
Intervention
Adaptive, sequential digital outreach strategy (secure portal messaging, SMS/text messaging, or nonsecure email). Initial nonresponders within 14 days underwent prespecified second-stage randomization to repeat the same outreach or switch communication modality.
C
Comparator
Usual communication.
O
Outcome
Rates of 14-day statin refill following each randomization, with 28-day follow-up.
Main Result
Relative Risk: 1.2 (95% CI 1.1–1.3)
Absolute Event Rate: 14.4% vs 12%
Absolute Risk Reduction: 2.3%
An adaptive, sequential digital outreach strategy significantly improved short-term statin refills among patients with recent nonadherence compared to usual communication.
Discussion
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Expert reaction
What experts said about ADHERE-ASCVD
JAMA · ESC Congress 2026
2 experts have reacted so far. We show the split once 3 have.
“This study tested simple, low-effort ways of increasing adherence, and it showed us that it is the number of reminders, rather than the reminder's method, that is the biggest predictor for people refilling their prescriptions. This means we now have a strategy we can implement…”
Expert labels are toward ADHERE-ASCVD's result, from named public quotes (n=2). As of Aug 30, 2026.
Where experts stand
Experts see ADHERE-ASCVD as proof that digital nudges can modestly improve statin refills, but the persistently low overall refill rates temper enthusiasm about real-world impact.
Cardiologists acknowledge that adaptive digital outreach statistically improved statin refills over usual communication, but several note the absolute gains were small and overall adherence remained low. There is agreement that switching communication channels as a second nudge added no extra benefit, while a repeated nudge to non-responders did help. The live question is whether these modest digital interventions can be scaled or refined enough to meaningfully move long-term cardiovascular outcomes.
Agreement
Multiple experts highlight that while a second digital nudge helped non-responders refill statins, switching the communication channel offered no additional benefit.
2 clinicians say this directly
1 take classified by contention axis so far — the map appears as more land.
Still unclear
Experts note that overall refill rates remained low even in the intervention arm, leaving open whether digital outreach alone can produce clinically meaningful improvements in long-term statin adherence. The trial investigators mentioned plans to extend adaptive digital outreach to heart failure and to examine the role of comorbidities, but it is unclear how these refinements will change outcomes.
Key expert perspectives
Ankeet BhattResearch scientist, Kaiser Permanente Division of Research; cardiologist
“Statins are very effective in lowering cardiovascular risk. However, adherence to this treatment is suboptimal nationally. Finding strategies that help people not miss refilling these potentially life-saving medicines was our motivation for this work, and we were pleased to see that we found a strategy that was successful.”
Andrew P. AmbrosyHeart Failure / Cardiomyopathy · Kaiser Permanente Northern California / The Permanente Medical Group, San FranciscoPractice takeAug 29
Changing modalities added nothing, but the speed from concept to completion signals operational promise
Ambrosy highlights that multiple communication channels increased statin use in patients at risk or with ASCVD, but changing modalities was no more effective as a second nudge. He notes the trial went from concept to completion in under two months, underscoring the opportunity to improve operational efficiency in health systems.
Gregg FonarowUCLA Medical CenterResults readoutAug 29
Digital outreach boosted 14-day refills and a second nudge helped, but switching channels did not
Fonarow summarizes that digital outreach via portal, text, and email increased 14-day statin refills versus usual care (14.4% vs 12.0%). A second nudge helped non-responders, but switching channels provided no extra benefit.
Adaptive digital outreach raised 14-day statin refill versus usual communication (14.4% vs 12.0%); the absolute gain is modest and most patients still did not refill.
Abstract
Importance Statin nonadherence is a leading, addressable driver of preventable cardiovascular events. Although health systems routinely use outreach to promote preventive care, most strategies are static and lack evidence from randomized clinical trials. Objective To determine whether an adaptive, sequential digital outreach strategy improves short-term statin refill vs usual communication among adults with established atherosclerotic cardiovascular disease (ASCVD) or high ASCVD risk and recent nonadherence within a rapidly implemented, health system–embedded randomized clinical trial. Design, Setting, and Participants Pragmatic, health system–embedded, prospective randomized open blinded end point (PROBE) clinical trial using a 2-stage sequential, multiple assignment, randomized trial (SMART) design. The trial was conducted via Kaiser Permanente Northern California, an integrated health care delivery system serving more than 4.6 million members. Eligible participants were adults 18 years or older with established ASCVD or high ASCVD risk, recent statin nonadherence, and eligibility for all study communication modalities. Interventions Participants were randomized 1:1:1:1 to receive secure portal messaging, SMS/text messaging, nonsecure email, or usual communication. Initial nonresponders within 14 days underwent prespecified second-stage randomization to repeat the same outreach, switch communication modality, or receive usual communication. Main Outcomes and Measures Rates of 14-day statin refill following each randomization, with 28-day follow-up. Results Among 20 604 participants (mean [SD] age, 54.8 [9.0] years; 40.9% female; 27.8% Asian, 10.9% Black, 33.6% Hispanic; 15.3% with established ASCVD), initial digital outreach increased 14-day statin refill vs usual communication (14.4% vs 12.0%; adjusted risk difference, 2.3 percentage points [95% CI, 1.3-3.4]; adjusted risk ratio, 1.20 [95% CI, 1.10-1.30]). Among initial nonresponders, second-stage outreach further increased refill (13.0% vs 10.4%; adjusted risk difference, 2.5 percentage points [95% CI, 1.3-3.7]; adjusted risk ratio, 1.25 [95% CI, 1.11-1.39]). Switching communication modalities did not improve refill vs repeating the same modality (13.2% vs 12.5%; adjusted risk ratio, 1.06 [95% CI, 0.94-1.17]). Cumulative statin refill through 28 days was higher in those receiving any digital outreach vs usual communication (24.9% vs 21.2%; adjusted hazard ratio, 1.21 [95% CI, 1.13-1.30]). Results were consistent across prespecified subgroups. Conclusions and Relevance Among adults with a statin indication and recent statin nonadherence, adaptive outreach improved short-term refill vs usual communication. A second outreach produced additional gains among initial nonresponders, although switching communication modalities provided no additional benefit. These findings support adaptive, sequential health system outreach strategies to improve cardiovascular prevention when integrated into population health programs. Trial Registration ClinicalTrials.gov Identifier: NCT07522645
Coverage & sources
Journal, society, and media accounts. Useful signal, not independent expert judgment.
Cite This Study
Bhatt et al. (2026) conducted an RCT in Established ASCVD or high ASCVD risk with recent statin nonadherence (n=20,604). Digital outreach (secure portal messaging, SMS/text messaging, nonsecure email) vs. Usual communication was evaluated on 14-day statin refill (RR 1.20, 95% CI 1.10-1.30). Initial digital outreach increased 14-day statin refill compared with usual communication (14.4% vs 12.0%; RR 1.20; 95% CI 1.10-1.30).