Safety, Biomarker Study of RL-007 in Subjects With Schizophrenia
A Single-arm, Single-blind, Multiple Dose Study to Evaluate Safety and the Effects of RL-007 on Electroencephalograms and Event-related Potentials in Subjects With Schizophrenia
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
California
-
Long Beach, California, United States, 90806
- Collaborative Neuroscience Research
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Key Inclusion Criteria:
- Provide a written informed consent
- Diagnosis of schizophrenia, as defined by DSM-5 and evaluated with the MINI Plus interview
- Positive and Negative Symptoms Severity Score (PANSS) of 40 - 80 (inclusive), and a score of 4 or less on the following PANSS items: P2, P3, P5, P6, G6.
- Currently being treated with a single protocol-allowed antipsychotic at a stable dose and clinically stable for at least 8 weeks before admission (note: allowed meds = aripiprazole, brexipiprazole, paliperidone, risperidone)
- Modified Simpson-Angus Scale total score <= 4
- At least 1 standard deviation below normative value of total number of words recalled on the Hopkins Verbal Learning Test
- BMI <= 38
Key Exclusion Criteria:
- History of hospitalization for medical indication within 4 weeks prior to screening or psychiatric hospitalization within 3 months prior to screening
- Use of any other psychoactive medication known to interfere with the EEG/ERP assessments within 1 week prior to screening or during the study period.
- Subjects who present a serious risk of suicide
- Any history of GI surgery, or other condition, that may affect GI absorption or any history of GI bleeding or peptic ulcer.
- Evidence or history of significant cognitive impairment, other than associated with schizophrenia, that in the judgement of the Investigator would confound secondary or exploratory assessments or prevent safe and satisfactory completion of the study protocol.
- Moderate to severe alcohol use disorder, per DSM-5 within 3 months of admission visit.
- Positive alcohol breath test or urine test for drugs of abuse at either screening or admission visit.
- Currently smoking more than 1 pack of cigarettes a day and unable or unwilling to maintain smoking to less than 1 pack a day during in-patient portion of study.
- Positive test result for SARS-CoV2 prior to admission per site standards.
- Positive test for hepatitis B, hepatitis C or HIV
- Subjects whose hair type or style is likely to interfere with successful application of scalp electrodes.
- Subjects with needle phobia or in whom venous access is technically difficult.
- Other unspecified reasons that, in the opinion of the PI or sponsor, make the subject unsuitable for enrollment.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Sequential Assignment
- Masking: Single
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Dose-escalation - RL-007
Each cohort will include a single dose-strength.
Within each cohort, the sequence of active capsules and matching placebo capsules will be varied and unknown to the participant.
|
Cohorts are 10 mg, 20 mg, 40 mg, and 80 mg with TID dosing
|
|
Placebo Comparator: Dose-escalation - matching Placebo
Within each cohort, the sequence of active capsules and matching placebo capsules will be varied and unknown to the participant.
|
Cohorts are 10 mg, 20 mg, 40 mg, and 80 mg with TID dosing
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Incidence of Treatment-emergent Adverse Events (TEAE)
Time Frame: Study Day 8.
|
Comparison of AE rates between active and placebo dosing
|
Study Day 8.
|
|
Change in blood pressure (systolic and diastolic) from baseline
Time Frame: Study Day 4
|
blood pressure measured in mmHg; baseline = Day -1
|
Study Day 4
|
|
Change in heart rate from baseline
Time Frame: Study Day 4
|
heart rate measured in beats per minute; baseline = Day -1
|
Study Day 4
|
|
Change in respiratory rate from baseline
Time Frame: Study Day 4
|
respiratory rate measured in breaths per minute; baseline = Day -1
|
Study Day 4
|
|
Change in temperature from baseline
Time Frame: Study Day 4
|
temperature measured in degrees Celsius; baseline = Day -1
|
Study Day 4
|
|
Change in electrocardiogram (ECG) from baseline
Time Frame: Study Day 3
|
overall physician interpretation of ECG reading; baseline = Day -1
|
Study Day 3
|
|
Change in the Columbia Suicide Severity Rating Scale (C-SSRS) from baseline
Time Frame: Study Day 8
|
The C-SSRS assesses suicidal ideation and behavior; baseline = Day -1
|
Study Day 8
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Change from baseline in quantitative electroencephalogram (qEEG)
Time Frame: Study Day 4
|
change from baseline in amplitude across qEEG frequency bands (alpha, beta, delta, theta, and gamma)
|
Study Day 4
|
|
Change from baseline in evoked response potential (ERP) amplitude
Time Frame: Study Day 4
|
Change from baseline in signal amplitude of the two-stimulus auditory oddball ERP
|
Study Day 4
|
|
Change from baseline in evoked response potential (ERP) latency
Time Frame: Study Day 4
|
Change from baseline in signal latency of the two-stimulus auditory oddball ERP
|
Study Day 4
|
|
Change from baseline in amplitude of mismatch negativity (MMN) ERP
Time Frame: Study Day 4
|
Change from baseline in signal amplitude of the MMN ERP
|
Study Day 4
|
|
Change from baseline in latency of mismatch negativity (MMN) ERP
Time Frame: Study Day 4
|
Change from baseline in signal latency of the MMN ERP
|
Study Day 4
|
Other Outcome Measures
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Verbal learning performance
Time Frame: Study Day 4
|
Number of words recalled (immediate and delayed) on the Hopkins Verbal Learning Test (HVLT-R)
|
Study Day 4
|
|
Symbol coding performance
Time Frame: Study Day 4
|
Number of correct responses on the Brief Assessment of Cognition in Schizophrenia Symbol Coding Test
|
Study Day 4
|
|
Category fluency performance
Time Frame: Study Day 4
|
Number of appropriate items provided in the Category Fluency Task
|
Study Day 4
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: David Walling, PhD, Collaborative Neuroscience Research
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Actual)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- C07-03-01
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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.
Clinical Trials on Schizophrenia
-
NCT07369401Not yet recruiting
-
NCT01190254CompletedSchizophrenia, Paranoid | Schizophrenia, Disorganized | Schizophrenia, Undifferentiated
-
NCT07184619Recruiting
-
NCT01190267CompletedSchizophrenia, Paranoid | Schizophrenia, Disorganized | Schizophrenia, Undifferentiated
-
NCT05944510CompletedTreatment Resistant Schizophrenia
-
NCT07154407Not yet recruitingSchizophrenia Disorder
-
NCT07626034Not yet recruiting
Clinical Trials on RL-007
-
NCT05686239CompletedSchizophrenia | Cognitive Impairment | Cognitive Impairment Associated With Schizophrenia (CIAS)
-
NCT07598799Not yet recruitingAcute Ischemic Stroke
-
NCT03121651CompletedCerebral Palsy | Spina Bifida
-
NCT05024292Recruiting
-
NCT05924230RecruitingPost Induction Hypotension
-
NCT04752371TerminatedAdult Onset Still's Disease
-
NCT02576093Completed
-
NCT07035509Not yet recruitingSeptic Shock | Pediatric Critical Illness
-
NCT03244085Unknown