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OpenTrials
Completed

NCT Number: NCT02335658

Long-term Study of DSP-5423P in Patients With Schizophrenia

The study evaluates the long term safety of DSP-5423P in patients with schizophrenia.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

38 Sites

Tokyo, Japan

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Patients who have schizophrenia diagnosed by DSM-5, diagnostic criteria
  • Patients who are aged 18 years or older at informed consent
  • Patient understands the objectives and procedures of the study and who provide written voluntarily consent to participate in the study, etc.

Exclusion criteria

  • Patients who fall under a contraindication listed in the LONASEN® package insert
  • Patients with Parkinson disease, etc.

Treatment and study plan

DSP-5423P

Drug

40-80mg/day

Primary outcomes

  1. Adverse Events and Adverse Drug Reactions, Etc.

    Time frame: week 52

    Number of Subjects With Adverse Event (AE) and Adverse Drug Reaction (ADR) An adverse event (AE) is any untoward medical occurrence in a study subject administered a medicinal (investigational) product and which does not necessarily have a causal relationship with this treatment. An AE can, therefore, be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease occurring after the administration of a medicinal (investigational) product, whether or not considered related to the medicinal (investigational) product. AEs may include the onset of new illness and the exacerbation of pre-existing conditions.

    An adverse drug reaction (ADR) is any AE which has a causal relationship with this treatment.

Secondary outcomes

  1. Change in Positive and Negative Syndrome Scale (PANSS) Total Score at Week52 and Week 52 Last Observation Carried Forward(LOCF) From DSP-5423P Baseline

    Time frame: Week 52, Week 52 (LOCF)

    The PANSS is an interview-based measure of the severity of psychopathology in adults with psychotic disorders. The measure is comprised of 30 items and 3 subscales: the Positive subscale assesses hallucinations, delusions, and related symptoms; the Negative subscale assesses emotional withdrawal, lack of motivation, and similar symptoms; and the General Psychopathology subscale addresses other symptoms such as anxiety, somatic concern, and disorientation. An anchored Likert scale from 1 7, where values of 2 and above indicate the presence of progressively more severe symptoms, is used to score each item. Individual items are then summed to determine scores for the 3 subscales, as well as a total score. The PANSS total score is the sum of all 30 items and ranges from 30 through 210. A higher score is associated with greater illness severity.

    The LOCF endpoint is defined as the last data captured on Day 1 through 7 days after the final application of DSP-5423P.

Sponsors and collaborators

Lead sponsor

Sumitomo Pharma Co., Ltd.

Industry

Registry information

Official study title

Long-term Study of DSP-5423P in Patients With Schizophrenia <Phase 3>

Important dates

Study start
2014
Primary completion
2017
Study completion
2017
First posted
Jan 12, 2015
Registry last updated
Apr 12, 2022

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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