A Study to Compare Disease Progression and Modification Following Treatment With Paliperidone Palmitate Long-Acting Injection or Oral Antipsychotics in Participant's With Recent-onset Schizophrenia or Schizophreniform

Trial ID or NCT#



not recruiting iconNOT RECRUITING


The purpose of the study is to compare effectiveness of paliperidone palmitate (PP: paliperidone palmitate once-monthly and 3-month injections) versus oral antipsychotic (OAP [that is oral paliperidone extended release {ER}, oral risperidone, or another OAP]) in delaying time to treatment failure. The study will also evaluate changes in cognition, functioning, brain intracortical myelin (ICM) volume following treatment with PP compared with OAP in participants with recent-onset schizophrenia or schizophreniform disorder.

Official Title

A Prospective, Matched-Control, Randomized, Open-Label, Flexible-Dose, Study in Subjects With Recent-Onset Schizophrenia or Schizophreniform Disorder to Compare Disease Progression and Disease Modification Following Treatment With Paliperidone Palmitate Long-Acting Injection or Oral Antipsychotics

Eligibility Criteria

Ages Eligible for Study: 18 Years to 35 Years
Sexes Eligible for Study: All
Accepts Healthy Volunteers: Yes
Inclusion Criteria:
  1. - Participant must have a current diagnosis of schizophrenia (295.90) or schizophreniform disorder (295.40) as defined by Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5) and confirmed by the Structured Clinical Interview for DSM-5 Disorders (SCID) with a first psychotic episode within the last 24 months prior to the screening visit - Participant requires treatment with an antipsychotic medication - Participant must sign an informed consent form (ICF) indicating that he or she understands the purpose of and procedures required for the study and are willing to participate in the study - Participant must have available a designated individual (example, family member, significant other, friend) who has knowledge of the participant and is generally aware of the participants daily activities, and who agrees to let the study site personnel know of changes in the participants circumstances when the participant is not able to provide this information. The designated individual must sign an informed consent form - Participant is anticipated to have a stable place of residence for the duration of the trial
Exclusion Criteria:
  1. - Participant has a current DSM-5 diagnosis of dissociative disorder, bipolar disorder, major depressive disorder, schizoaffective disorder, autistic disorder, or intellectual disabilities - Participant meets the DSM-5 definition of moderate or severe substance use disorder (except for nicotine) within 2 months prior to Screening - Participant has a history of neuroleptic malignant syndrome - Participant has received long-acting injectable (LAI) medication within 2 injection cycles prior to the Screening visit - Participant has mental retardation, defined as pre-morbid intelligence quotient (IQ) as measured by Wechsler Test of Adult Reading at Screening less than (<) 70


Jacob S. Ballon
Jacob S. Ballon
Associate Professor of Psychiatry and Behavioral Sciences (General Psychiatry and Psychology)