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Ocrelizumab for Psychosis by Autoimmunity

Ocrelizumab for Psychoses Possibly Caused by Synaptic Autoimmunity

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03971487
Acronym
OPA
Enrollment
40
Registered
2019-06-03
Start date
2019-10-01
Completion date
2028-10-30
Last updated
2026-04-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Schizo-Affective Type of Psychosis, Schizophrenia

Keywords

schizo-affective psychosis, schizophrenia

Brief summary

Some people who have what doctors currently call schizophrenia or bipolar disease may actually have a brain disease caused by auto-antibodies. Auto-antibodies are produced when the normal defense mechanism of the body goes wrong and begins to attack the body, similar to "friendly fire." Auto-antibodies attack brain receptors and then the person who has this problem begins to have hallucinations and other manifestations of schizophrenia, like feeling that people can see what they are thinking and also feeling that other people do not like them. If this disease is caused by auto-antibodies, typically the person is well until they are 15 years of age or older, but seldom older than 35 years. Then, in a matter of a few months they begin to have hallucinations and the other symptoms. Doctors still do not know whether some people with schizophrenia or bipolar disease have auto-antibodies attacking their brain. For this reason, in this study some of these patients will receive a treatment that suppresses the auto-antibodies and their symptoms after treatment will be compared with the symptoms of a group of similar patients who are given a preparation that looks like the real treatment, but it is not.

Interventions

BEHAVIORALPsychosis and cognitive assessments

Administration of MINI, PANSS and Quality of Living scales

BEHAVIORALPhysical and neuro-cognitive evaluations

Physical, neurological and cognitive evaluations.

DIAGNOSTIC_TESTSafety labs and electrocardiogram

Metabolic panel, CBC and differential, urinalysis, ECG, recreational drugs. CD19+ B-cell count.

BIOLOGICALOcrelizumab infusion

Two IV infusions of 300 mg of ocrelizumab 2 weeks apart

Sponsors

The Methodist Hospital Research Institute
Lead SponsorOTHER
Genentech, Inc.
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Intervention model description

Randomized placebo-controlled therapeutic trial

Eligibility

Sex/Gender
ALL
Age
18 Years to 35 Years
Healthy volunteers
No

Inclusion criteria

* Individuals of either sex, 18-35 years of age. * Having an active psychotic disorder meeting DSM-5 criteria, including a duration of at least six months, for Schizophrenia Spectrum Disorder, as defined by the Mini International Neuropsychiatric Interview (MINI). * A total PANSS ≥ 60 and a score ≥ 4 on at least 2 of the PANSS positive symptoms. * Normal academic performance at least until the age of 15 years and absence of psychiatric symptoms before the same age. * Ability to assent or consent to the performance of the study and participate in testing procedures.

Exclusion criteria

* The dose of antipsychotic medication (if they are on one) has been changed less than two weeks prior to baseline PANSS testing (Visit 2, see below). * Patient treated with a medication designed to suppress the immune system, other than standard analgesics or antipyretics, in the six months prior to randomization. * Vaccinated with a live-attenuated vaccine less than 4 weeks before ocrelizumab infusion or with a non-live vaccine less than 2 weeks before infusion. * Active infection, or history of or known presence of recurrent or chronic infection (for example, hepatitis B or C, Human Immunodeficiency Virus, syphilis, tuberculosis, PML). * History of brain tumor, stroke, severe head trauma or multiple sclerosis. * Active cancer, metabolic encephalopathy, severe cardiovascular or renal disease. * In the judgment of the PI, psychosis related to substance abuse or metabolic disorders. * Pregnancy or lactation. * Requirement for chronic treatment with systemic corticosteroids or immunosuppressants during the course of the study. * History of or currently active primary or secondary immunodeficiency. * History of severe allergic or anaphylactic reactions to humanized or murine monoclonal antibodies. * Contraindications to or intolerance of oral or IV corticosteroids.

Design outcomes

Primary

MeasureTime frameDescription
Score on the Positive and Negative Syndrome Scale (PANSS)Six monthsIt measures symptoms of psychosis

Secondary

MeasureTime frameDescription
Score on quality of life scales for psychiatric patientsSix months(modified to include input by caregivers)
Score on NIH Cognitive ToolboxSix monthsTablet-implemented tool testing cognitive abilities, including working memory
Antipsychotic-equivalent medication ordered by patient's psychiatristSix monthsDose of medications for psychosis transformed to a standard equivalent

Countries

United States

Contacts

CONTACTJoseph C Masdeu, MD, PhD
jcmasdeu@houstonmethodist.org202-255-7899
CONTACTHaroon Shahid, MD
mhshahid@houstonmethodist.org713-441-1150
PRINCIPAL_INVESTIGATORJoseph C Masdeu, MD, PhD

HOUSTON METHODIST NEUROLOGICAL INSTITUTE

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 2, 2026