RecruitingPhase 3NCT05184335

Safety and Efficacy of Brilaroxazine (RP5063) in Schizophrenia

Phase 3, Randomized, 28 Days, Double-blind, Placebo-controlled, Multicenter Study to Assess the Safety and Efficacy of Brilaroxazine (RP5063) in Subjects With Schizophrenia, Followed by a 52-Week Open-label Extension


Sponsor

Reviva Pharmaceuticals

Enrollment

690 participants

Start Date

Jan 24, 2022

Study Type

INTERVENTIONAL

Conditions

Summary

This study is to evaluate the effect and safety of Brilaroxazine in patients with acute schizophrenia compared to the placebo short and long-term. Brilaroxazine will be given at fixed doses of 15 mg or 50 mg once daily over 4 weeks, then in the long-term flexible doses 15-50mg daily over a period of 52 weeks.


Eligibility

Min Age: 18 YearsMax Age: 65 Years

Inclusion Criteria3

  • Subject is male or female, aged 18 to 65 years
  • Subject reads, understands, and signs an Institutional Review Board (IRB)/Independent Ethics Committee (IEC)-approved current ICF prior to performing any of the Screening procedures
  • Diagnosis schizophrenia

Exclusion Criteria14

  • Has a history of treatment resistance exhibited by any of the following:
  • No or minimal response to at least 2 periods of treatment lasting 28 days or longer, with antipsychotic agents at the maximally tolerated dose.
  • Lifetime history of clozapine use
  • History of electroconvulsive therapy (ECT) for treatment of schizophrenia within the past 5 years.
  • Is treatment-naïve for schizophrenia.
  • Primary current diagnosis other than schizophrenia or a comorbid diagnosis that is primarily responsible for the current symptoms and functional impairment.
  • Has a current diagnosis of a psychotic disorder other than schizophrenia or a behavioral disturbance thought to be due to substance abuse disorder.
  • Meets criteria for moderate-to-severe substance use disorder within past 6 months prior to Screening (excluding those related to caffeine or nicotine).
  • Has a history of the following: (a) traumatic brain injury causing ongoing cognitive difficulties, Alzheimer's disease, or another form of dementia, or any chronic organic disease of the central nervous system (CNS) (b) intellectual disability of a severity that would impact ability to participate in the study.
  • Subject has a current primary DSM-5 diagnosis other than schizophrenia, including schizoaffective disorder, major depressive disorder, post-traumatic stress disorder, obsessive-compulsive disorder, manic episode, hypomania, panic disorder, delirium, amnestic or other cognitive disorders. Also, subjects with borderline, paranoid, histrionic, schizotypal, schizoid, or antisocial personality disorder.
  • On antipsychotic within the Screening Period (minimum 3 days prior to Baseline and throughout the study).
  • Within 28 days prior to Baseline: monoamine oxidase (MAO) inhibitors, CNS stimulants, potent CYP3A4/5 enzyme-inducing drugs including but not limited to rifampin and carbamazepine and strong CYP3A4/5 inhibitors like ketoconazole, itraconazole, clarithromycin, etc. (see Appendix 20.1 for prohibited medications).
  • Antipsychotic depot medication within 5 half-lives prior to Baseline.
  • Positive Urine Drug Screen for drugs of abuse, including amphetamines, barbiturates, cocaine, ecstasy, phencyclidine or opiates meeting criteria of moderate-to-severe DSM-5 substance use disorder.

Interventions

DRUGBrilaroxazine

RP5063, a new chemical entity (NCE), is a novel multimodal neuromodulator intended for treating schizophrenia and comorbid conditions. This drug is an investigational drug and has not been approved for treatment or marketing. RP5063 belongs to a class of third generation antipsychotics called Dopamine-Serotonin System Stabilizers. The chemical name of the RP5063 active pharmaceutical ingredient (API) is 6-(4-(4-(2,3-dichlorophenyl)-piperazin-1-yl)-butoxy)-2H-benzo\[b\]\[1,4\]oxazin-3(4H)-one hydrochloride.

OTHERPlacebo

RP5063 matching Placebo


Locations(18)

Reviva site

Phoenix, Arizona, United States

Reviva site

Bentonville, Arkansas, United States

Reviva site

Little Rock, Arkansas, United States

Reviva site

Rogers, Arkansas, United States

Reviva site

Garden Grove, California, United States

Reviva site

Lemon Grove, California, United States

Reviva site

Riverside, California, United States

Reviva site

Hollywood, Florida, United States

Reviva site

Hollywood, Florida, United States

Reviva site

Miami Lakes, Florida, United States

Reviva site

Atlanta, Georgia, United States

Reviva site

Decatur, Georgia, United States

Reviva site

Chicago, Illinois, United States

Reviva site

Gaithersburg, Maryland, United States

Reviva site

Boston, Massachusetts, United States

Reviva site

Oklahoma City, Oklahoma, United States

Reviva site

Austin, Texas, United States

Reviva site

Richardson, Texas, United States

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NCT05184335


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