Mode
Text Size
Log in / Sign up
Phase 3 N=675 Randomized Quadruple-blind Treatment

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

Schizophrenia

Enrolled (actual)
675
Serious AEs
3.6%
Results posted
Jan 2026
Primary outcome: Primary: Double-blind Period: Change in the Positive and Negative Syndrome Scale (PANSS) Total Score From Baseline to Week 8 — -12.17; -21.91; -23.44; -21.93 units on a scale — p=<0.0001

Study Design & Population

Study type
Interventional
Phase
Phase 3
Interventions
TV-44749 (Drug); Placebo (Drug)
Age
Adult · 18+ yrs
Sex
All
Sponsor
Teva Branded Pharmaceutical Products R&D LLC
Primary completion
Mar 2024

Outcome Measures

OutcomeResultp-value
PRIMARY
Double-blind Period: Change in the Positive and Negative Syndrome Scale (PANSS) Total Score From Baseline to Week 8
-12.17; -21.91; -23.44; -21.93 <0.0001 sig
SECONDARY
Double-blind Period: Change in Clinical Global Impression-Severity (CGI-S) Scale Score From Baseline to Week 8
-0.72; -1.25; -1.33; -1.19 <0.0001 sig
SECONDARY
Double-blind Period: Change in Personal and Social Performance Scale (PSP) Score From Baseline to Week 8
5.59; 10.31; 8.83; 10.59 0.0011 sig
SECONDARY
Double-blind Period: Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
84; 112; 117; 126; 3; 4
SECONDARY
Integrated Study Period: Number of Participants With AEs and SAEs
149; 147; 153; 15; 8; 13
SECONDARY
Double-blind Period: Change in PANSS Total Score From Baseline to Weeks 1, 2, and 4
-5.74; -7.54; -7.29; -6.22; -7.95; -11.02
SECONDARY
Double-blind Period: Clinical Global Impression-Improvement (CGI-I) Scale Score at Weeks 4 and 8
3.42; 2.97; 3.00; 2.97; 3.31; 2.64
SECONDARY
Double-blind Period: Change in CGI-S Scale Score From Baseline to Weeks 1, 2, and 4
-0.27; -0.33; -0.33; -0.23; -0.42; -0.56
SECONDARY
Double-blind Period: Patient Global Impression-Improvement (PGI-I) Scale Score at Weeks 2, 4, and 8
3.30; 2.95; 2.92; 3.16; 3.24; 2.79
SECONDARY
Double-blind Period: Change in Schizophrenia Quality of Life Scale (SQLS) Total Score From Baseline to Weeks 4 and 8
-5.63; -8.47; -7.16; -8.45; -6.43; -10.42
SECONDARY
Double-blind Period: Change in PSP Score From Baseline to Week 4
3.22; 6.14; 4.46; 4.88
SECONDARY
Double-blind Period: Number of Participants Receiving At Least 1 Concomitant Medication
138; 128; 128; 141
SECONDARY
Integrated Study Period: Number of Participants Receiving At Least 1 Concomitant Medication
148; 142; 156
SECONDARY
Double-blind Period: Change From Baseline to Week 8 in Abnormal Involuntary Movement Scale (AIMS) Total Score
-0.1; -0.1; 0.0; 0.0
SECONDARY
Integrated Study Period: Change From Baseline to Week 60 in AIMS Total Score
-0.14; -0.11; -0.08
SECONDARY
Double-blind Period: Change From Baseline to Week 8 in Simpson-Angus Scale (SAS) Mean Score
-0.02; -0.02; 0.00; -0.01
SECONDARY
Integrated Study Period: Change From Baseline to Week 60 in SAS Mean Score
-0.02; -0.01; -0.02
SECONDARY
Double-blind Period: Change From Baseline to Week 8 in Barnes Akathisia Rating Scale (BARS) Total Score
-0.1; -0.1; 0.0; -0.1
SECONDARY
Integrated Study Period: Change From Baseline to Week 60 in BARS Total Score
-0.1; -0.1; -0.1
SECONDARY
Double-blind Period: Number of Participants With Any Suicidal Ideation or Suicidal Behavior According to the Columbia Suicide Severity Rating Scale (C-SSRS)
154; 149; 156; 165; 9; 8
SECONDARY
Integrated Study Period: Number of Participants With Any Suicidal Ideation or Suicidal Behavior According to the C-SSRS
184; 183; 186; 14; 16; 11
SECONDARY
Double-blind Period: Change From Baseline to Week 8 in Calgary Depression Scale for Schizophrenia (CDSS) Score
-1.1; -2.1; -1.7; -2.0
SECONDARY
Integrated Study Period: Change From Baseline to Week 60 in CDSS Score
-2.0; -2.1; -1.9

Summary

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.

Eligibility Criteria

Inclusion Criteria

  • 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

Exclusion Criteria

  • 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 was hospitalized for >14 days (with the exception of social or administrative hospitalization) in the current exacerbation episode prior to screening.
  • 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.
  • 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.
  • 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 has a non-fasting glucose level of ≥200 mg/dL at screening
  • 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)
  • NOTE- Additional criteria apply, please contact the investigator for more information
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT05693935). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

Back to search