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The Study in Outpatient Medicine Using Nudges to Improve Sleep

The Study in Outpatient Medicine Using Nudges to Improve Sleep: The SOMNUS Trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06640023
Acronym
SOMNUS
Enrollment
444
Registered
2024-10-15
Start date
2024-12-20
Completion date
2027-06-01
Last updated
2026-06-26

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

Conditions

Inappropriate Prescribing

Keywords

Sleep Aids, Pharmaceutical, Zolpidem, zaleplon, Eszopiclone, Cognitive Behavioral Therapy, Insomnia, Clinical Decision-Making, Decision Support Systems, Clinical, Economics, Behavioral

Brief summary

The goal of this clinical trial is to learn if electronic health record (EHR) nudges (changes to the EHR that do not restrict freedom of choice or alter incentives) can reduce Z-drug prescribing in primary care clinics for patients with insomnia. The main questions it aims to answer are: 1. Can Z-drug prescribing be reduced by setting the dispense quantity default of new Z-drug orders in the EHR to 10 pills with 0 refills? 2. Can Z-drug prescribing be reduced by an EHR alert that suggests clinicians remove a Z-drug and/or add an evidence-based behavioral treatment for insomnia, followed by a request to justify their reasoning if the suggestion is not followed? 3. Does combining these two nudges reduce Z-drug prescribing? Researchers will compare each nudge individually and in combination to an guideline education control group to see if each nudge (separately and in combination) can reduce Z-drug prescribing. Clinician-participants will: 1. Complete an introductory educational module about treating insomnia and relevant EHR changes. 2. Complete their routine patient visits. 3. Either experience EHR changes when prescribing Z-drugs, including a Z-drug dispense quantity default of 10 pills for new orders, a prompt to remove or justify Z-drug orders, both, or neither.

Interventions

BEHAVIORALZ-drug Default Quantity

For new orders of oral Z-drugs tablets (zolpidem, zolpidem CR, zaleplon, and eszopiclone), the EHR dispense quantity default will be changed to 10 pills with 0 refills for all dosage levels. Dispense quantities for Z-drug reorders and renewals will not be changed.

BEHAVIORALRedirection + Accountable Justification

For qualifying Z-drug orders, an EHR alert will suggest removing the Z-drug, adding a CBT-I referral, or both. If the alert recommendation is not followed, clinicians will be asked to provide a justification for their decision when the order is signed. The justification will display in the Encounter Report. The alert suggestion depends on the recent history of Z-drug prescriptions for a given patient. When a Z-drug is being ordered for patients with 180 days supply of Z-drugs or fewer in the last 365 days, the alert will prompt removal of the Z-drug and addition of a CBT-I referral to the order. When a Z-drug is being ordered for patients with 181 days supply of Z-drugs or more in the last 365 days, the alert will only prompt addition of a CBT-I referral to the order. If a CBT-I referral is already in the current order or has been ordered for a patient in the past 180 days, the alert to add a CBT-I referral to the order will not display.

Sponsors

University of Southern California
Lead SponsorOTHER
Northwestern Medicine
CollaboratorOTHER
National Heart, Lung, and Blood Institute (NHLBI)
CollaboratorNIH

Study design

Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE

Masking description

The investigator is masked during data and safety monitoring only.

Intervention model description

2x2

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Outpatient primary care clinician at Northwestern Medicine

Exclusion criteria

* Clinician participated in pilot study * Clinician-investigator for this trial * Visit involves patient with ICD-10 F31.X diagnosis code (bipolar disorder) present in the last year or on active problem list

Design outcomes

Primary

MeasureTime frameDescription
Z-drug pill count36 monthsDose-equivalent Z-drug pill count prescribed at eligible encounters by clinicians from 18 months prior to the intervention start to 18 months after the intervention start.

Secondary

MeasureTime frameDescription
Z-drug pill count among short-term users36 monthsDose-equivalent Z-drug pill count prescribed at eligible encounters with short-term Z-drug use patients (less than or equal to 180 days of Z-drugs prescribed in last 365 days) by clinicians from 18 months prior to the intervention start to 18 months after the intervention start.
Z-drug pill count among long-term users36 monthsDose-equivalent Z-drug pill count prescribed at eligible encounters of long-term Z-drug use patients (greater than 180 days of Z-drugs prescribed in last 365 days) by clinicians from 18 months prior to the intervention start to 18 months after the intervention start.
CBT-I referrals18 monthsNumber of patients who are referred to CBT-I from intervention start to 18 months after the intervention start.
CBT-I referrals among short-term users18 monthsNumber of short-term Z-drug use patients (less than or equal to 180 days of Z-drugs prescribed in last 365 days) who are referred to CBT-I from intervention start to 18 months after the intervention start.
CBT-I referrals among long-term users18 monthsNumber of long-term Z-drug use patients (greater than 180 days of Z-drugs prescribed in last 365 days) who are referred to CBT-I from intervention start to 18 months after the intervention start.
Monthly Z-drug pill count36 monthsTotal monthly dose-equivalent Z-drug pill count prescribed by clinicians from 18 months prior to the intervention start to 18 months after the intervention start.
Benzodiazepine pill count36 monthsDose-equivalent benzodiazepine pill count prescribed at eligible encounters by clinicians from 18 months prior to the intervention start to 18 months after the intervention start.
Z-drug guideline discordant duration36 monthsProportion of eligible encounters when patients were prescribed more than 35 Z-drug pills for use within a 5 week period from 18 months prior to the intervention start to 18 months after the intervention start.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORJason Doctor, PhD

University of Southern California

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 27, 2026