7-week Study With CT-155 in People With Schizophrenia

May 14, 2025 updated by: Click Therapeutics, Inc.

A Multi-center, Exploratory, Single-Arm, 7-week Study to Evaluate the Feasibility and Acceptability of Treatment With CT-155 in People With Schizophrenia

CT-155 is a novel prescription digital therapeutic (PDT) to treat schizophrenia

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

CT-155 is a novel prescription digital therapeutic (PDT) being developed by Click Therapeutics, Inc. (Click) and Boehringer Ingelheim (BI) using an interactive, software-based intervention to treat schizophrenia.

This is a multi-center, exploratory, single-arm study to evaluate the feasibility and acceptability of treatment with an abbreviated version of CT-155 in adults diagnosed with schizophrenia. Eligible participants must have a diagnosis of schizophrenia per the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5).

Participants that meet eligibility criteria will be enrolled in the study on Day 1. The study consists of an up to 7-day screening period, a 49-day engagement period, and an up to 7-day follow-up period.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
72

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Culver City, California, United States, 90230
        • CT-155 Study Center
      • Garden Grove, California, United States, 92845
        • CT-155 Study Center
      • La Habra, California, United States, 90631
        • CT-155 Study Center
      • San Bernardino, California, United States, 92408
        • CT-155 Study Center
      • Santa Ana, California, United States, 92704
        • CT-155 Study Center
    • Illinois
      • Chicago, Illinois, United States, 60611
        • CT-155 Study Center
    • New York
      • New York, New York, United States, 10032
        • CT-155 Study Center
      • Staten Island, New York, United States, 10314
        • CT-155 Study Center
    • Ohio
      • Beachwood, Ohio, United States, 44122
        • CT-155 Study Center
    • Oklahoma
      • Oklahoma City, Oklahoma, United States, 73112
        • CT-155 Study Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 64 years (Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Has outpatient treatment status of schizophrenia.
  2. Is on a stable dose of antipsychotic medication(s)
  3. Is the solo user of an iPhone with iPhone operating system (iOS)13 or greater capabilities or a smart phone with an Android operating system (OS) 9 or greater capabilities.
  4. Is the owner of, and has regular access to, an email address.
  5. Has regular access to the internet via cellular data plan and/or wifi.
  6. Willing and able to receive SMS text messages on their smartphone and email messages, and understand how to use the downloaded Study App.
  7. Has stable housing and has remained at the same residence for at least 12 weeks prior to screening, with no anticipated housing changes during the duration of the study

Exclusion Criteria:

  1. Is currently treated with more than two antipsychotic medications.
  2. Is currently treated with clozapine or haloperidol.
  3. Has active prominent positive symptoms to preclude effective engagement in treatment for negative symptoms.
  4. Is currently receiving or has received psychotherapy within 12 weeks prior to screening.
  5. Meets either the International Classification of Diseases (ICD-10) or DSM-5 criteria for diagnoses not under investigation.
  6. Has post-traumatic stress disorder (PTSD), bipolar disorder, major depressive disorder, developmental disorders, or any prominent disorder.
  7. Has substance or alcohol use disorder.
  8. Currently needs or will likely require prohibited concomitant medications.
  9. Is currently participating in another clinical study.
  10. Prior participation in the CT-155-C-001 clinical study.
  11. Has suicidal ideation or behavior.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Device Feasibility
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Single arm
Single arm acceptability and feasibility of CT-155.
Device: CT-155 smartphone app
The CT-155 study app is designed to provide treatment monitoring and educational components of a full treatment cycle with CT-155. This design allows inferences to be made about the usability and acceptability of CT-155. Eligible participants will be enrolled during an in-person clinic visit on Day 1. Participants will then be directed to access the study app and perform tasks each day for the 49-day engagement period.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Feasibility and acceptability with the study app as measured by Mobile App Rating Scale (MARS) at week 7
Time Frame: MARS scale on Week 7 at the end of the treatment period

Participants ratings of Study App quality and satisfaction as measured by the Mobile App Rating Scale (MARS) at Week 7

The MARS is a validated 23-items rated on a 5-point anchored scale 1 being the lowest and 5 the highest
MARS scale on Week 7 at the end of the treatment period

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in strength of digital working alliance from Week 3 to Week 7 as assessed by the Mobile Agnew Relationships Measure (mARM)
Time Frame: Change from Week 3 to Week 7 of the Mobile Agnew Relationships Measure
To explore the establishment of a digital working alliance as assessed by the change from Week 3 to Week 7 of the Mobile Agnew Relationships Measure. The Mobile Agnew Relationships Measures is on a 7-item scale that ranges from "Strongly Disagree" as scale 1 to "Strongly Agree" as scale 7.
Change from Week 3 to Week 7 of the Mobile Agnew Relationships Measure

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Click Therapeutics, Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Chair: Shaheen Lakhan, MDPhD, FAAN, Click Therapeutics

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 5, 2022

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 22, 2022

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 12, 2022

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 1, 2022

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 1, 2022

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 3, 2022

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 15, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 14, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CT-155-C-002

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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