The Study in Outpatient Medicine Using Nudges to Improve Sleep
SOMNUS
2 other identifiers
interventional
444
1 country
1
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?
- 4.Complete an introductory educational module about treating insomnia and relevant EHR changes.
- 5.Complete their routine patient visits.
- 6.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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Dec 2024
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 30, 2024
CompletedFirst Posted
Study publicly available on registry
October 15, 2024
CompletedStudy Start
First participant enrolled
December 20, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 1, 2027
April 27, 2026
April 1, 2026
2.4 years
September 30, 2024
April 23, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Z-drug pill count
Dose-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.
36 months
Secondary Outcomes (8)
Z-drug pill count among short-term users
36 months
Z-drug pill count among long-term users
36 months
CBT-I referrals
18 months
CBT-I referrals among short-term users
18 months
CBT-I referrals among long-term users
18 months
- +3 more secondary outcomes
Other Outcomes (9)
Z-drug pill count at follow-up
48 months
Z-drug pill count at follow-up among short-term users
48 months
Z-drug pill count at follow-up among long-term users
48 months
- +6 more other outcomes
Study Arms (4)
Control
NO INTERVENTIONClinicians randomized to this arm receive guideline education prior to the trial.
Z-drug Default Quantity
EXPERIMENTALClinicians randomized to this arm receive guideline education + 10 pill quantity defaults.
Redirection + Accountable Justification
EXPERIMENTALClinicians randomized to this arm receive guideline education + alerts requiring justification of orders discordant with guidelines. Justifications are entered in the patient's medical record, and can be viewed by other clinicians.
Combined
EXPERIMENTALClinicians randomized to this arm receive guideline education + 10 pill quantity defaults + alerts requiring justification of orders discordant with guidelines. Justifications are entered in the patient's medical record, and can be viewed by other clinicians
Interventions
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.
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.
Eligibility Criteria
You may qualify if:
- Outpatient primary care clinician at Northwestern Medicine
You may not qualify if:
- 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
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Southern Californialead
- Northwestern Medicinecollaborator
- National Heart, Lung, and Blood Institute (NHLBI)collaborator
Study Sites (1)
Northwestern Medicine
Chicago, Illinois, 60611, United States
Related Publications (1)
Cloughesy JN, Linder JA, Knight TK, Persell SD, Sullivan MD, Meeker D, Brown T, Lee JY, Stewart EP, Fox CR, Goldstein NJ, Sumitro RG, Vitiello MV, Mack WJ, Doctor JN. The Study in Outpatient Medicine using Nudges to Improve Sleep (SOMNUS): study protocol for an 18-month factorial, cluster-randomized trial to increase guideline-concordant treatment of insomnia in primary care. Trials. 2025 Dec 23;27(1):85. doi: 10.1186/s13063-025-09385-6.
PMID: 41430294DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Jason Doctor, PhD
University of Southern California
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Masking Details
- The investigator is masked during data and safety monitoring only.
- Purpose
- HEALTH SERVICES RESEARCH
- Intervention Model
- FACTORIAL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
September 30, 2024
First Posted
October 15, 2024
Study Start
December 20, 2024
Primary Completion (Estimated)
June 1, 2027
Study Completion (Estimated)
June 1, 2027
Last Updated
April 27, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ANALYTIC CODE
- Time Frame
- Data will be available for one year following study completion date.
Individual participant data as part of a HIPAA compliant limited data set may be shared with researchers under a signed Data Use Agreement.