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Completed

NCT Number: NCT06253546

Safety, Tolerability, and Pharmacokinetic Study of TV-44749 in Chinese Patients With Schizophrenia

Primary Objective:

To evaluate the safety and tolerability of single doses of TV-44749 for subcutaneous (sc) use in Chinese participants with schizophrenia.

Secondary Objectives:

* To evaluate the pharmacokinetics (PK) of single doses of TV-44749 administered sc. * To evaluate the pharmacokinetics of oral olanzapine tablets following multiple dose administration. * To monitor the safety and tolerability of multiple doses of oral olanzapine tablets given in the study.

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Key information

Age range

18 year–64 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Teva Investigational Site 88048, Beijing, China

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About this study

The total study duration for participants is planned to be approximately 13 weeks, including 40 days of screening, 1-week oral olanzapine treatment, a 1-week washout period, 4-week TV-44749 treatment, and 2-week follow-up period after the last dosing interval.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Body weight >50 kg and body mass index (BMI) between 18.5 to 38.0 kg/m2, inclusive, at the time of screening.
  • A current confirmed diagnosis of schizophrenia according to an evaluation by the investigator, using the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5)
  • Are clinically stable, on oral olanzapine (i.e., dose has not changed in the last 4 weeks), and not currently on other antipsychotic treatment at the time of screening.
  • No hospitalization for worsening of schizophrenic symptoms and no significant exacerbation of schizophrenic symptoms, as judged by the investigator, within the 3 months prior to screening.
  • Female participants must have a negative serum pregnancy test at screening, are sterile or postmenopausal, and not planning pregnancy within the study period and for an additional 6 months after last dose administration.
  • Male participants must be surgically sterile, or, if capable of producing offspring, has exclusively same-sex partners or is currently using an approved method of birth control.
  • Agree to maintain current smoking or nonsmoking status at the time informed consent is obtained and throughout the study until completion of the end of study (EOS)/early termination (ET) visit.
  • Have no ongoing or expected significant life events (such as pending loss of housing, marital status change, long travel abroad, surgery, etc.) that could affect study outcomes expected throughout the period of study participation.

NOTE: Additional criteria apply, please contact the investigator for more information.

Exclusion criteria

  • Presence or have a history of clinically significant diseases of the renal, hepatic, gastrointestinal, cardiovascular, musculoskeletal system or presence or history of clinically significant immunological, endocrine, metabolic, neurological, or psychiatric disorder(s) (other than schizophrenia), or a history of any illness that, in the opinion of the principal investigator, might pose additional risk to the participant by participation in the study or confound the results of the study
  • Major trauma or surgery in the 2 months before screening or at any time between screening and the first dose of the investigational medicinal product (IMP), surgery scheduled during the study or follow-up period, or open biopsy within 4 months prior to screening
  • History of malignancy or treatment of malignancy in the last 5 years, excluding resected basal cell or squamous cell carcinoma of the skin.

NOTE: Additional criteria apply, please contact the investigator for more information.

Treatment and study plan

TV-44749 318mg

Drug

Pharmaceutical form:

extended-release injectable suspension

Route of administration: subcutaneous injection

Oral Olanzapine 10mg/day

Drug

Pharmaceutical form:

tablet

Route of administration:

oral

Other names: ZYPREXA

TV-44749 425mg

Drug

Pharmaceutical form: extended-release injectable suspension

Route of administration: subcutaneous injection

Oral Olanzapine 15mg/day

Drug

Pharmaceutical form: tablet

Route of administration: oral

Other names: ZYPREXA

TV-44749 531mg

Drug

Pharmaceutical form: extended-release injectable suspension

Route of administration: subcutaneous injection

Oral Olanzapine 20mg/day

Drug

Pharmaceutical form: tablet

Route of administration: oral

Other names: ZYPREXA

Primary outcomes

  1. Period 2: Number of Participants With Treatment Emergent Adverse Events (TEAEs)

    Time frame: Day 1 Up to Day 43

    An adverse event (AE) was defined as any untoward medical occurrence in a participant who received the study drug without regard to possibility of causal relationship. Treatment-emergent AEs were defined as AEs that occurred after the first dose of study drug was administered in Period 1 through end of the trial. A summary of other non-serious AEs and all serious AEs (SAEs), regardless of causality is located in the Reported AE section.

  2. Period 2: Number of Participants With Treatment Emergent SAEs

    Time frame: Day 1 Up to Day 43

    An AE was defined as any untoward medical occurrence in a participant who received the study drug without regard to possibility of causal relationship. The SAEs were defined as death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, or an important medical event that jeopardized participant and required medical intervention to prevent 1 of the outcomes listed in this definition. Treatment-emergent AEs were defined as AEs that occurred after the first dose of study drug was administered in Period 1 through end of the trial. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the Reported AE section.

  3. Period 2: Number of Participants With Injection Site AEs

    Time frame: Day 1 Up to Day 43

    Injection site AEs included injection site pruritus, induration, warmth, and abscess. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the Reported AE section. All injection site AEs are reported in this outcome measure and the AE module only reports non-serious AEs at the 5% threshold. In the AE module, a participant could have been included for multiple injection site AEs.

Secondary outcomes

  1. Period 2: Maximum Observed Plasma Drug Concentration (Cmax) of TV-44749

    Time frame: Day 1 Up to Day 43

  2. Period 2: Area Under the Plasma Drug Concentration-time Curve (AUC) Over the Period Following Administration on Day 1 to the Time of the Last Measurable Concentration (AUC0-t) of TV-44749

    Time frame: Day 1 Up to Day 43

  3. Period 2: AUC of TV-44749 Over the Period Following Administration on Day 1 Extrapolated to Infinity (AUC0-inf)

    Time frame: Day 1 Up to Day 43

  4. Period 2: Time to Maximum Observed Concentration (Tmax) of TV-44749

    Time frame: Day 1 Up to Day 43

  5. Period 2: Apparent Elimination Half-Life (t½) of TV-44749

    Time frame: Day 1 Up to Day 43

  6. Period 1: Maximum Observed Plasma Drug Concentration at Steady State (Cmax,ss[Oral Olanzapine])

    Time frame: Day -8

  7. Period 1: AUC of Oral Olanzapine From Time 0 to the End of the Dosing Interval (24 Hour) at Steady State (AUC0-tau,ss[Oral Olanzapine])

    Time frame: Day -8

  8. Period 1: Calculated AUC of Oral Olanzapine at Steady State Extrapolated Over 28 Days (AUC0-tau,ss[Oral Olanzapine] * 28)

    Time frame: Day -8 up to Day 20

    The steady-state AUC of oral olanzapine over a 28-day dosing interval was calculated by extrapolating the 24-hour AUC obtained following administration of the seventh oral dose (Day -8) to a 28-day period (AUC0-tau,ss[oral olanzapine] * 28).

  9. Period 1: Time to Maximum Concentration of Oral Olanzapine at Steady State (Tmax,ss[Oral Olanzapine])

    Time frame: Day -8

  10. Period 1: Number of Participants With TEAEs

    Time frame: Day -14 up to Day -8

    An AE was defined as any untoward medical occurrence in a participant who received the study drug without regard to possibility of causal relationship. Treatment-emergent AEs were defined as AEs that occurred after the first dose of study drug was administered in Period 1 through end of the trial. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the Reported AE section.

  11. Period 1: Number of Participants With Treatment Emergent SAEs

    Time frame: Day -14 up to Day -8

    An AE was defined as any untoward medical occurrence in a participant who received the study drug without regard to possibility of causal relationship. The SAEs were defined as death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, or an important medical event that jeopardized participant and required medical intervention to prevent 1 of the outcomes listed in this definition. Treatment-emergent AEs were defined as AEs that occurred after the first dose of study drug was administered in Period 1 through end of the trial. A summary of other non-SAEs and all serious AEs, regardless of causality is located in the Reported AE section.

Sponsors and collaborators

Lead sponsor

Teva Branded Pharmaceutical Products R&D LLC

Industry

Registry information

Official study title

A Phase 1, Single Dose, Parallel Cohort Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of TV-44749, Olanzapine for Extended-Release Injectable Suspension for Subcutaneous Use, in Chinese Patients With Schizophrenia

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Feb 12, 2024
Registry last updated
Jun 30, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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