NCT05693935CompletedPhase 3
A Randomized, Double-Blind, Placebo-Controlled Study With an Open-Label, Long-Term Safety Phase to Evaluate the Efficacy and Safety of TV-44749 in Adults With Schizophrenia
A Multinational, Multicenter, Randomized, Double-Blind, Parallel-Group, Placebo-Controlled Study With an Open-Label, Long-Term Safety Phase to Evaluate the Efficacy, Safety, and Tolerability of Olanzapine for Extended-Release Injectable Suspension (TV-44749) for Subcutaneous Use as Treatment of Adult Patients With Schizophrenia
Source: ClinicalTrials.gov · Last updated 17 Mar 2026
Brief summary (registry, in English)
The primary objective of this study is to evaluate the efficacy of TV-44749 in adult participants with schizophrenia. A key secondary objective is to further evaluate the efficacy of TV-44749 based on additional parameters in adult participants with schizophrenia. A secondary objective is to evaluate the safety and tolerability of TV-44749 in adult participants with schizophrenia Another secondary objective of this study is to evaluate the efficacy of TV-44749 from baseline to endpoint in Period 1 in adult participants with schizophrenia. Total study duration is up to 61 weeks, and treatment duration is up to 56 weeks, with weekly visits during the first 8 weeks and then monthly in-clinic visits with weekly calls during the remainder of the treatment period.
- Status (registry)
- Completed
- Phase (registry)
- Phase 3
- Study type
- Interventional
- Enrollment
- 675 (actual)
- First submitted
- 12 Jan 2023
- Start date
- 24 Jan 2023
- Primary completion date
- 19 Mar 2024
- Lead sponsor
- Teva Branded Pharmaceutical Products R&D LLC
- Diseases
- Schizophrenia
- NCT number
- NCT05693935
- EudraCT number
- 2022-001865-11
What you commit to
- Study type: Interventional · Phase 3
- Participants enrolled: 675
- From 24 Jan 2023 to the primary completion date, 19 Mar 2024
- 82 sites in 5 countries
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- The participant was hospitalized for \>14 days (with the exception of social or administrative hospitalization) in the current exacerbation episode prior to screening.
- The participant is currently using an LAI antipsychotic or is still under the coverage period of the specific LAI at time of screening.
- The participant has taken clozapine or has received electroconvulsive therapy within the last 12 months prior to screening.
- The participant is currently receiving daily oral olanzapine at a dose \>20 mg/day.
Other illness
- The participant has a current clinically significant DSM-5 diagnosis other than schizophrenia (has a primary current diagnosis other than schizophrenia or a comorbid diagnosis that is primarily responsible for the current symptoms and functional impairment).
- The participant has a known history of the following: (a) borderline personality disorder, antisocial personality disorder, or bipolar disorder; (b) 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; and (c) intellectual disability of a severity that would impact ability to participate in the study.
- The participant has current or a history of known hypersensitivity to olanzapine or any of the excipients of TV-44749 or the oral formulation of olanzapine.
- The participant has had a significant sedation or delirium after antipsychotic treatment according to medical and psychiatric history and as judged by the investigator or suffered from delirium due to a medical condition.
- The participant meets criteria for moderate to severe substance use disorder (based on DSM-5 criteria) within the past 6 months (excluding those related to caffeine or nicotine)
Lab values
- The participant has a non-fasting glucose level of ≥200 mg/dL at screening
Other
- The participant has a significant risk of violent behavior based on the participant's medical history or investigator's judgment.
- The participant has a significant risk of committing suicide based on the participant's medical history or C-SSRS, and the investigator's judgment.
- NOTE- Additional criteria apply, please contact the investigator for more information
Who the study is looking for
- The participant has a current confirmed diagnosis of schizophrenia according to the DSM-5, for \>1 year
- The participant has exacerbation of schizophrenia that started ≤8 weeks prior to screening and would benefit from psychiatric hospitalization or continued hospitalization for symptoms of schizophrenia.
- Participants who have received an antipsychotic treatment (other than clozapine) in the past year must have been responsive based on the investigator's judgment (and based on discussions with family members, caregivers, or healthcare professionals, as applicable).
- Body mass index between 18.0 and 40.0 kg/m2, inclusive, at the time of screening
- Women may be included only if they have a negative beta-human chorionic gonadotropin (β-HCG) test at screening and baseline
- Women of childbearing potential must agree not to try to become pregnant, and, unless they have exclusively same-sex partners, must agree to use a highly effective method of contraception prior to the first administration of IMP, and agree to continue the use of this method for the duration of the study, and for 70 days after the last dose of IMP
- The participant is in adequate health as determined by medical and psychiatric history, medical examination, electrocardiogram (ECG), serum chemistry, hematology, coagulation urinalysis, and serology.
- NOTE- Additional criteria apply, please contact the investigator for more information
Age in the registry: 18 years to 64 years · Sex: All · Does not accept healthy volunteers
Sites (82)
Sites in registry order. Save your city in your profile to sort them by distance.
Related publications
- Safety, Tolerability, and Pharmacokinetics of Subcutaneous Extended-Release Injectable Olanzapine in Patients with Schizophrenia and Schizoaffective Disorder.Clin Drug Investig · 2026 · PMID 41632432
- Population Pharmacokinetic Model-Based Dose Selection of Extended-Release Injectable Olanzapine (TV-44749) for Subcutaneous Use in Phase 3 Clinical Trial in Adults with Schizophrenia.J Clin Pharmacol · 2026 · PMID 41496255
This page is information, not medical advice. Discuss any trial with your doctor.