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Chronic InsomniaPhase 4COZINCT04468776

CBT-I or Zolpidem/Trazodone for Insomnia

A Phase 4 study testing Zolpidem, Internet Cognitive Behavioral Therapy for Insomnia (CBT-I) and Trazodone in people with Chronic Insomnia, run by California Pacific Medical Center Research Institute at 7 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study is a randomized (1:1:1) comparative effectiveness trial of medication (zolpidem or trazodone), cognitive-behavioral therapy for insomnia (CBT-I), and the combination (medication + CBT-I) for the treatment of chronic insomnia in men and women aged 18-80 living in rural areas with 1 year of follow-up. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Chronic Insomnia
What is being tested?
Zolpidem, Internet Cognitive Behavioral Therapy for Insomnia (CBT-I) and Trazodone
Could I receive a placebo?
No, everyone receives an active treatment
How many people
155 participants
Where
7 sitesUnited States
Study dates
25 Feb 2022to 30 Jun 2024
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age 18-80
  • Insomnia Severity Index score > 10
  • Regular internet and computer access
  • Receives primary care in a Non-metropolitan/Rural residence

Who cannot join

  • Use of hypnotic medication >2 times in the past week
  • Current cognitive or cognitive behavioral treatment for insomnia
  • Psychotic disorder
  • Bipolar disorder
  • Current substance use disorder
  • Severe Chronic obstructive pulmonary disease (COPD) or other severe pulmonary disease (such as asthma or lung fibrosis)
Show all 13Show fewer
  • Cognitive impairment or dementia
  • History of spontaneous or hypnotic-induced complex sleep behavior
  • Delayed sleep phase disorder (DSPD)
  • Shift work that includes working the night shift (between the hours of 12:00 a.m. - 6:00 a.m.)
  • History of fracture or injurious fall in the past 12 months
  • Currently pregnant, planning to become pregnant, or breastfeeding
  • Other severe or uncontrolled mental or physical disorders that would make participation difficult or unsafe

Trial locations and contacts

7 sites in 1 country.

7 sites in 1 country

United States7 sites
  • University of Alabama at Birmingham

    Birmingham, Alabama, 35233

  • University of Virginia

    Charlottesville, Virginia, 22908

  • University of Missouri

    Columbia, Missouri, 65212

  • Penn State Hershey Medical Center

    Hershey, Pennsylvania, 17033

  • University of Pittsburgh

    Pittsburgh, Pennsylvania, 15213

  • Oregon Health & Science University

    Portland, Oregon, 97239

  • University of Arizona

    Tucson, Arizona, 85721

Other trials in United States

About this study

Official title: Comparative Effectiveness of Zolpidem/Trazodone and Cognitive Behavioral Therapy for Insomnia in Rural Adults

This study is a randomized (1:1:1) comparative effectiveness trial of medication (zolpidem or trazodone), cognitive-behavioral therapy for insomnia (CBT-I), and the combination (medication + CBT-I) for the treatment of chronic insomnia in men and women aged 18-80 living in rural areas with 1 year of follow-up. A total of 155 participants will be enrolled and randomized in the United States. This trial is funded by the Patient-Centered Outcomes Research Institute.

Read the detailed description

Insomnia is a common health problem that causes distress, impaired function, and increased risk for other health problems. Chronic insomnia is defined by problems with the quality or amount of sleep, including difficulty falling asleep, frequent awakenings, and/or awakening early and being unable to return to sleep. In developing this application, patients, providers, payors, and the investigators identified both concerns and opportunities with current treatments for chronic insomnia. Medications and Cognitive-Behavioral therapy for insomnia (CBT-I; a treatment program to improve sleep through changes in behavior and thinking) are both effective for treating insomnia. Zolpidem, the most frequently prescribed insomnia medication, is widely available, but may cause side effects and dependency. Trazodone is increasingly prescribed off-label for treatment of insomnia, but evidence of efficacy and safety is more limited. CBT-I is the recommended first line treatment by many professional organizations, but it is not widely available in physicians' practices. Patients, providers, and payors face important unanswered questions: Which treatment should be used for the treatment of chronic insomnia? Is combination therapy more effective, and does it result in lower zolpidem use? Who responds best to which treatment? These dilemmas are particularly relevant to patients and providers in rural areas, where access to behavioral health specialists is limited, and concerns regarding use of controlled substances is particularly acute.

To address these questions, we propose the study, Comparative Effectiveness of Zolpidem/Trazodone and Cognitive Behavioral Therapy for Insomnia in Rural Adults (COZI). The investigators will use a well-tested Internet version of CBT-I, which is just as effective as in-person CBT-I, but more widely available. The aims of COZI are to: 1: Compare the effectiveness of medication preference (zolpidem or trazodone), CBT-I, and combination treatment for insomnia symptoms over 6 months. 2: Compare the effectiveness of medication preference, CBT-I, and combination treatment for other symptoms and problems, including health-related quality of life, mood, and health outcomes. 3: Compare the side effects of medication preference, CBT-I, and combination treatment. COZI will study 155 patients recruited from 7 health care systems across the country, each of which has established practices in rural areas. Patients will be treated with medication prescribed by their own physician (zolpidem or trazodone), Internet CBT-I, or a combination of the two. The investigators will evaluate treatment effects at 9 weeks, and 6 and 12 months (with limited additional assessments for adverse events and medication use at 1 and 9 months). Our study questions and design reflect early and ongoing engagement of key stakeholders including patients, providers, and payors, who are members of the Study Advisory Committee (SAC). SAC members will work with study investigators to recommend the best strategies for recruiting patients, measuring treatment effects, and disseminating study findings. The SAC will meet quarterly. Patients and other stakeholders have already provided guidance on which treatments are most worth studying, and which symptoms would best reflect the effects of treatment. Patients and other stakeholders will also be part of the Steering Committee, which is the main decision-making group for our study, and which will meet monthly. COZI will lead to answers for patients and providers addressing insomnia; improved health and function for millions of rural Americans; and sustainable changes in how insomnia is treated in rural practices.

Being tested
Zolpidem, Internet Cognitive Behavioral Therapy for Insomnia (CBT-I), Trazodone
Keywords
Insomnia, Chronic Insomnia, Zolpidem, Ambien, Cognitive-behavioral therapy for insomnia, CBT-I, Rural, Primary Care, Pragmatic Clinical Trial, Comparative Effectiveness, Trazodone
Medical subject headings
Sleep Initiation and Maintenance Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ZolpidemDrug

    Also called Ambien

    Zolpidem, as prescribed by physician

  • Internet Cognitive Behavioral Therapy for Insomnia (CBT-I)Behavioural

    Also called SHUTi

    6-week internet CBT-I multi-component intervention (SHUTi) including sleep restriction, stimulus control, cognitive restructuring, sleep behaviors, and relapse prevention

  • TrazodoneDrug

    Also called Desyrel

    Trazodone, as prescribed by physician

Study groups in NCT04468776
Study groupRoleWhat they receive
Medication (zolpidem or trazodone)Active comparatorZolpidem or trazodone, as prescribed by physician
Receives: Drug: Zolpidem; Drug: Trazodone
Internet Cognitive Behavioral Therapy for Insomnia (CBT-I)Active comparatorInternet-based CBT-I program
Receives: Behavioral: Internet Cognitive Behavioral Therapy for Insomnia (CBT-I)
CombinationExperimentalMedication (zolpidem or trazodone) as prescribed by physician and Internet-based CBT-I program
Receives: Drug: Zolpidem; Behavioral: Internet Cognitive Behavioral Therapy for Insomnia (CBT-I); Drug: Trazodone

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in Insomnia Symptom Severity

    Change in Insomnia Severity Index score from baseline to follow-up. The Insomnia Severity Index is a 7-item self-report questionnaire that measures severity of insomnia symptoms during the last two weeks. Each item is scored 0 (no problem) to 4 (very severe problem) and total between 0-28, with higher scores indicating more severe insomnia symptoms. Change is estimated mean change from mixed-effects linear regression model. Fixed effects: Baseline ISI, Treatment Arm, Visit and Treatment Arm*Visit interaction. Random effects: intercept for Subject, nested within Site.

    Measured: Baseline, 6 months

Secondary outcomes (2)
  1. Number of Participants With Treatment Response of Insomnia Symptoms

    Treatment response defined as a ≥6 point reduction in Insomnia Severity Index score from baseline to follow-up. The Insomnia Severity Index is a 7-item self-report questionnaire that measures severity of insomnia symptoms during the last two weeks. Each item is scored 0 (no problem) to 4 (very severe problem) and total between 0-28, with higher scores indicating more severe insomnia symptoms. Data presented as count of participants meeting treatment response criteria at 6 months.

    Measured: Baseline, 6 months

  2. Number of Participants With Remission of Insomnia Symptoms

    Remission of Insomnia symptoms defined as Insomnia Severity Index <8 at follow-up. The Insomnia Severity Index is a 7-item self-report questionnaire that measures severity of insomnia symptoms during the last two weeks. Each item is scored 0 (no problem) to 4 (very severe problem) and total between 0-28, with higher scores indicating more severe insomnia symptoms. Data presented as count of participants meeting insomnia remission criteria at 6 months.

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Jul 2020
  2. Study start25 Feb 2022
  3. Primary completion30 Jun 2024
  4. Study completion30 Jun 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
This study is a randomized (1:1:1) comparative effectiveness trial of medication preference (zolpidem or trazodone), CBT-I, and the combination for the treatment of insomnia in 155 men and women aged 18-80 years living in rural areas.
Masking
Double blind
Who is masked
Investigator, Outcomes assessor
Enrolment
155 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04468776
Sponsor's protocol ID
CER-2018C2-13262
Other IDs
CER-2018C2-13262
Acronym
COZI
Status last verified
Feb 2025
First submitted
26 Jun 2020
Last updated
24 Feb 2025
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Zolpidem, Internet Cognitive Behavioral Therapy for Insomnia (CBT-I) and Trazodone in people with Chronic Insomnia, run by California Pacific Medical Center Research Institute at 7 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Feb 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 24 Feb 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in Insomnia Symptom Severity (time frame: Baseline, 6 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Feb 2025.

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