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.
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
- Type of treatment
- Lifestyle or therapy programme
- 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
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.
- Conditions
- Chronic Insomnia
- 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 group | Role | What they receive |
|---|---|---|
| Medication (zolpidem or trazodone) | Active comparator | Zolpidem or trazodone, as prescribed by physician Receives: Drug: Zolpidem; Drug: Trazodone |
| Internet Cognitive Behavioral Therapy for Insomnia (CBT-I) | Active comparator | Internet-based CBT-I program Receives: Behavioral: Internet Cognitive Behavioral Therapy for Insomnia (CBT-I) |
| Combination | Experimental | Medication (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.
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)
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
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.
- First posted13 Jul 2020
- Study start25 Feb 2022
- Primary completion30 Jun 2024
- Study completion30 Jun 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Chronic InsomniaStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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)
Sponsor and investigators
- Lead sponsor
- California Pacific Medical Center Research Institute
- Sponsor type
- University, hospital or other
- Collaborators
- Patient-Centered Outcomes Research Institute, University of Pittsburgh, University of Arizona, University of Virginia, University of Illinois Chicago
- Responsible party
- Sponsor
- Investigators
- Katie L. Stone, PhD, Principal investigator, California Pacific Medical Center/Sutter Bay HospitalsDaniel J. Buysse, MD, Principal investigator, University of Pittsburgh
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
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 24 Feb 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparative Effectiveness of Zolpidem/Trazodone and Cognitive Behavioral Therapy for Insomnia in Rural Adults
- ClinicalTrials.gov ID
- NCT04468776
- Acronym / sponsor ID
- COZI / CER-2018C2-13262
- Conditions
- Chronic Insomnia
- Keywords
- Insomnia, Chronic Insomnia, Zolpidem, Ambien, Cognitive-behavioral therapy for insomnia, CBT-I, Rural, Primary Care
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 155 participants (actual)
- Lead sponsor
- California Pacific Medical Center Research InstituteUniversity, hospital or other
- Collaborators
- Patient-Centered Outcomes Research Institute, University of Pittsburgh, University of Arizona, University of Virginia, University of Illinois Chicago
- Study start
- 25 Feb 2022 (actual)
- Primary completion
- 30 Jun 2024 (actual)
- Study completion
- 30 Jun 2024 (actual)
- First posted
- 13 Jul 2020 (actual)
- Results
- Posted 24 Feb 2025
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
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.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (investigator, outcomes assessor)
- Number of arms
- 3
- 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.
| Arm | Type | Receives |
|---|---|---|
| Medication (zolpidem or trazodone) | Active comparator | Drug: Zolpidem, Drug: TrazodoneZolpidem or trazodone, as prescribed by physician |
| Internet Cognitive Behavioral Therapy for Insomnia (CBT-I) | Active comparator | Behavioral: Internet Cognitive Behavioral Therapy for Insomnia (CBT-I)Internet-based CBT-I program |
| Combination | Experimental | Drug: Zolpidem, Behavioral: Internet Cognitive Behavioral Therapy for Insomnia (CBT-I), Drug: TrazodoneMedication (zolpidem or trazodone) as prescribed by physician and Internet-based CBT-I program |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Age 18-80
- Insomnia Severity Index score > 10
- Regular internet and computer access
- Receives primary care in a Non-metropolitan/Rural residence
Key exclusion criteria (13 listed)
- 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
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| ZolpidemAlso: AmbienZolpidem, as prescribed by physician | Drug | Combination, Medication (zolpidem or trazodone) |
| Internet Cognitive Behavioral Therapy for Insomnia (CBT-I)Also: SHUTi6-week internet CBT-I multi-component intervention (SHUTi) including sleep restriction, stimulus control, cognitive restructuring, sleep behaviors, and relapse prevention | Behavioural | Combination, Internet Cognitive Behavioral Therapy for Insomnia (CBT-I) |
| TrazodoneAlso: DesyrelTrazodone, as prescribed by physician | Drug | Combination, Medication (zolpidem or trazodone) |
Primary outcome
Change in Insomnia Symptom Severity
Time frame: Baseline, 6 months
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.
2 secondary outcomes
Number of Participants With Treatment Response of Insomnia Symptoms
Time frame: Baseline, 6 months
Number of Participants With Remission of Insomnia Symptoms
Time frame: 6 months
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Feb 2025.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Katie L. Stone, PhD principal investigator
California Pacific Medical Center/Sutter Bay Hospitals
Daniel J. Buysse, MD principal investigator
University of Pittsburgh
7 sites in 1 country: see every site and its status.
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.