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SchizophreniaPhase 1NCT04865835

A Clinical Trial Study to Determine the Effect of an Investigational Drug (SEP-363856) Has on the Way That the Drug Metformin Travels Through the Body in People With Schizophrenia.

A Phase 1 study testing SEP-363856 and metformin in people with Schizophrenia, run by Otsuka Pharmaceutical Development & Commercialization, Inc. at 2 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

A clinical trial study to determine the effect of an investigational drug (SEP-363856) has on the way that the drug Metformin travels through the body in people with schizophrenia. This clinical trial will have approximately 24 subjects both male and female 18 year of age and older. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Schizophrenia
What is being tested?
SEP-363856 and metformin
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
21 participants
Where
2 sitesUnited States
Study dates
12 May 2021to 3 May 2022
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female subject between 18 and 65 years of age, inclusive, at the time of informed consent.
  • Subject meets Diagnostic and Statistical Manual of Mental Disorders (DSM 5) criteria for a primary diagnosis of schizophrenia as established by clinical interview (using the DSM 5 as a reference and confirmed using the Structured Clinical Interview for DSM 5, Clinical Trials Version [SCID CT]).
  • Subject must have a Clinical Global Impressions - Severity Scale (CGI S) score ≤ 4 (normal to moderately ill) at Screening.
  • Subject must have a Positive and Negative Syndrome Scale (PANSS) total score ≤ 80 at Screening.
  • Subject must have a score of ≤ 4 on the following PANSS items at Screening:
  • P7 (hostility) G8 (uncooperativeness).
  • Subject must have normal to mild symptoms on all individual items of the Simpson-Angus Scale (SAS) (< 2), Abnormal Involuntary Movement Scale (AIMS) (< 3) and Barnes Akathisia Rating Scale (BARS) (< 3) at Screening.
  • Subject has been taking an antipsychotic for at least six weeks prior to Screening and has had no change in antipsychotic medication(s) (minor dose adjustments for tolerability purposes may be permitted after Medical Monitor and Sponsor review) for at least six weeks prior to Screening.

Who cannot join

  • Subject has any clinically significant unstable medical condition or any clinically significant chronic disease that in the opinion of the Investigator, would limit the subject's ability to complete and/or participate in the study, including any clinically significant hematological (including deep vein thrombosis) or bleeding disorder, renal, metabolic, endocrine, pulmonary, gastrointestinal, urological, cardiovascular, hepatic, neurologic or allergic disease (except for untreated seasonal allergies that are asymptomatic at the time of dosing).
  • Subject has a disorder or history of a condition, or previous gastrointestinal surgery (eg, cholecystectomy, vagotomy, bowel resection) that may interfere with drug absorption, distribution, metabolism, excretion, gastrointestinal motility, or pH, or a history of clinically significant abnormality of the hepatic or renal system, or a history of malabsorption (uncomplicated cholecystectomy, appendectomy, and hernia repair will be acceptable).
  • Subject has a DSM 5 diagnosis or presence of symptoms consistent with a DSM 5 diagnosis other than schizophrenia. Exclusionary disorders include but are not limited to alcohol use disorder (within past 12 months), substance (other than nicotine or caffeine) use disorder within past 12 months, major depressive disorder, bipolar I or II disorder, schizoaffective disorder, obsessive compulsive disorder, and posttraumatic stress disorder. Symptoms of mild to moderate mood dysphoria or anxiety are allowed so long as these symptoms are not the primary focus of treatment.
  • Subject answers "yes" to "Suicidal Ideation" Items 4 (active suicidal ideation with some intent to act, without specific plan) or Item 5 (active suicidal ideation with specific plan and intent) on the Columbia-Suicide Severity Rating Scale (C SSRS) at Screening (ie, in the past 1 month) or at any subsequent C SSRS assessment prior to dosing (ie since last visit).

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Hassman Research Institute

    Marlton, New Jersey, 08053

  • At Fort Lauderdale Behavioral Health Center

    Oakland Park, Florida, 33334

Other trials in United States

About this study

Official title: A Randomized, Single-blind, Two-period Crossover to Investigate the Effect of SEP-363856 on the Pharmacokinetics of Metformin in Subjects With Schizophrenia.

A clinical trial study to determine the effect of an investigational drug (SEP-363856) has on the way that the drug Metformin travels through the body in people with schizophrenia. This clinical trial will have approximately 24 subjects both male and female 18 year of age and older. This study will be conducted in approximately 2 study sites in the United States.

Read the detailed description

This is a randomized, single-blind, two-period crossover study in which each subject will receive both treatments and therefore act as their own control to minimize confounding covariates within the study population. Randomizing subjects to treatment sequence will assist with reducing the potential order effects that might confound the findings if all the subjects received the same treatment sequence. The single-blind method is used to keep subjects blind to treatment assignment throughout the study period, in order to avoid possible influence of the psychological factors of subjects on study assessments. This clinical study will evaluate whether SEP 363856 influences the PK of a concomitantly administered OCT2 substrate, metformin.

Conditions
Schizophrenia
Being tested
placebo, SEP-363856, metformin
Medical subject headings
Schizophrenia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • placeboDrug

    single dose of placebo

  • SEP-363856Drug

    single dose of SEP 363856 100 mg

  • metforminDrug

    metformin-HCl 850 mg

Study groups in NCT04865835
Study groupRoleWhat they receive
placebo and metforminPlacebo comparatorsingle dose of placebo + single dose of metformin-HCl 850 mg (approximately 663 mg metformin) (placebo will be dosed 1 hour prior to metformin administration)
Receives: Drug: placebo; Drug: metformin
SEP-363856 and metforminExperimentalsingle dose of SEP 363856 100 mg + single dose of metformin-HCl 850 mg (SEP 363856 will be dosed 1 hour prior to metformin administration)
Receives: Drug: SEP-363856; Drug: metformin

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Area under the plasma concentration-time curve

    area under the plasma concentration-time curve from time zero to infinity (AUC0 ∞) or area under the plasma concentration-time curve from time zero to a defined time (AUC0-t), if appropriate

    Measured: 72 hours

  2. • maximum observed plasma concentration

    maximum observed plasma concentration (Cmax).

    Measured: 72 hours

Secondary outcomes (10)
  1. area under the plasma concentration-time curve

    area under the plasma concentration-time curve from time zero to the time of last quantifiable concentration (AUC0-last)

    Measured: 72 hours

  2. time of the maximum observed plasma concentration

    time of the maximum observed plasma concentration (tmax)

    Measured: 72 hours

  3. time of last quantifiable concentration

    time of last quantifiable concentration (Tlast)

    Measured: 72 hours

  4. • percentage of extrapolated AUC0-∞

    percentage of extrapolated AUC0-∞ (%AUCextrap)

    Measured: 72 hours

  5. terminal elimination half-life

    terminal elimination half-life(T1/2)

    Measured: 72 hours

  6. apparent clearance

    apparent clearance (CL/F)

    Measured: 72 hours

  7. apparent volume of distribution

    apparent volume of distribution (VZ/F)

    Measured: 72 hours

  8. amount excreted in urine

    amount excreted in urine (Ae)

    Measured: 72 hours

  9. percentage excreted in urine

    percentage excreted in urine (Fe)

    Measured: 72 hours

  10. renal clearance

    renal clearance (CLR)

    Measured: 72 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Apr 2021
  2. Study start12 May 2021
  3. Primary completion3 May 2022
  4. Study completion3 May 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Model description
This is a randomized, single-blind, two-period crossover study in adults with schizophrenia
Masking
Single blind
Who is masked
Participant
Enrolment
21 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04865835
Sponsor's protocol ID
SEP361-110
Status last verified
Jun 2024
First submitted
26 Apr 2021
Last updated
26 Jun 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Anonymized Individual participant data (IPD) that underlie the results of this study will be shared with researchers to achieve aims pre-specified in a methodologically sound research proposal. Small studies with less than 25 participants are excluded from data sharing.

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing SEP-363856 and metformin in people with Schizophrenia, run by Otsuka Pharmaceutical Development & Commercialization, Inc. at 2 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 26 Jun 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Area under the plasma concentration-time curve (time frame: 72 hours). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Jun 2024.

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