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SchizophreniaPhase 2NCT02953639

A Study to Evaluate the Effects of Basmisanil in Participants With Cognitive Impairment Associated With Schizophrenia (CIAS) Treated With Antipsychotics

A Phase 2 study testing Basmisanil in people with Schizophrenia, run by Hoffmann-La Roche at 37 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

This multicenter study assessed the effects of 24 weeks of basmisanil treatment on cognition and functioning of stable schizophrenia participants treated with antipsychotics. Read more about this study

Who is it for?
Ages 18 to 50 years
Conditions the study is for
Schizophrenia
What is being tested?
Basmisanil
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
214 participants
Where
37 sitesUnited States
Study dates
30 Nov 2016to 12 Dec 2019
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 50 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Diagnosis of schizophrenia of any type utilizing the Mini International Neuropsychiatric Interview and diagnostic and statistical manual of mental disorders, fifth edition (DSM-5) direct clinical assessments, family informants and past medical records
  • Evidence of stability of symptoms for 3 months at screening, that is, without hospitalizations for schizophrenia or increase in level of psychiatric care due to worsening of symptoms of schizophrenia
  • Participants with schizophrenia clinical symptom severity defined by the following: hallucinatory behavior item score less than or equal to (</=) 5 and a delusion item score </= 5 of the PANSS
  • Participants on a stable regimen of antipsychotic therapy for at least 3 months at screening and receiving no more than two antipsychotics

Who cannot join

  • Participants with current DSM-5 diagnosis other than schizophrenia including bipolar disorder, schizoaffective disorder and major depressive disorder
  • Clinically significant neurological illness or significant head trauma that affects cognitive function, in the judgment of the principal investigator
  • Full scale intelligence quotient </=65 on the Wechsler Abbreviated Scale of Intelligence at screening
  • Positive result at screening for hepatitis B, hepatitis C, or human immunodeficiency virus-1 and 2
  • Moderate to severe substance use disorder (other than nicotine or caffeine), as defined by the DSM-5, within the last 12 months
  • Suicide attempt within 1 year or currently at risk of suicide in the opinion of the Investigator

Trial locations and contacts

37 sites in 1 country.

37 sites in 1 country

United States37 sites
  • Community Clinical Research Center

    Anderson, Indiana, 46060

  • Northwest Clinical Research Center

    Bellevue, Washington, 98007

  • Hassman Research Institute

    Berlin, New Jersey, 08009

  • Boston Medical Center

    Boston, Massachusetts, 02114

  • Neuro-Behavioral Clinical Research, Inc.

    Canton, Ohio, 44718

  • Neurobehavioral Research, Inc.

    Cedarhurst, New York, 11516

  • University Hospitals

    Cleveland, Ohio, 44106

  • ProScience Research Group

    Culver City, California, 90230

  • Midwest Clinical Research Center

    Dayton, Ohio, 45417

  • iResearch Atlanta

    Decatur, Georgia, 30030

  • CBH Health

    Gaithersburg, Maryland, 20877

  • Collaborative Neuroscience Network, Inc.

    Garden Grove, California, 92845

  • Pillar Clinical Research LLC

    Garland, Texas, 75042

  • California Clinical Trials

    Glendale, California, 91206

  • Alexian Brothers Center for Psychiatric Research

    Hoffman Estates, Illinois, 60169

  • University Hills Clinical Research - Irving;Office of Dr. Knesevich

    Irving, Texas, 75062

  • Vantage Clinical Trials

    Largo, Florida, 33770

  • Innovative Clinical Research, Inc.

    Lauderhill, Florida, 33319

  • Woodland International Research Group Inc.

    Little Rock, Arkansas, 72211

  • Alliance for Wellness, dba Alliance for Research

    Long Beach, California, 90807

  • Meridien Research

    Maitland, Florida, 32751

  • University of Miami Dept of Psychiatry

    Miami, Florida, 33136

  • Synergy Clinical Research

    National City, California, 91950

  • Yale School of Medicine - CT Mental Health Center (CMHC) - Schizophrenia Research Clinic

    New Haven, Connecticut, 06519

  • Manhattan Psychiatric Center; Psychopharmacology Research Unit

    New York, New York, 10035

  • Behavioral Clinical Research, Inc.

    North Miami, Florida, 33161

  • Pacific Research Partners, LLC

    Oakland, California, 94607

  • NRC Research Institute

    Orange, California, 92868

  • CNRI - Los Angeles, LLC

    Pico Rivera, California, 90660

  • Finger Lakes Clinical Research

    Rochester, New York, 14618

  • Woodland Research Northwest, LLC

    Rogers, Arkansas, 72758

  • Artemis Institute for Clinical Research, LLC

    San Diego, California, 92103

  • Booker, J. Gary, MD, APMC

    Shreveport, Louisiana, 71104-2136

  • Louisiana Clinical Research, LLC

    Shreveport, Louisiana, 71115

  • Arch Clinical Trials, LLC

    St Louis, Missouri, 63118

  • St Louis Clinical Trials

    St Louis, Missouri, 63141

  • Collaborative Neuroscience Network Inc.

    Torrance, California, 90502

Other trials in United States

About this study

Official title: A Phase IIb, Multicenter, Randomized, Double-Blind, Parallel Group, Placebo Controlled Study to Evaluate the Efficacy, Safety and Tolerability of Basmisanil (RO5186582) as Adjunctive Treatment in Patients With Cognitive Impairment Associated With Schizophrenia Treated With Antipsychotics

This multicenter study assessed the effects of 24 weeks of basmisanil treatment on cognition and functioning of stable schizophrenia participants treated with antipsychotics.

Conditions
Schizophrenia
Being tested
Basmisanil, Placebo
Medical subject headings
Schizophrenia

What participants receive

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

  • BasmisanilDrug

    Participants received either 80 milligrams (mg) or 240 mg of Basmisanil, as per the dosing schedules described above.

  • PlaceboDrug

    Participants received matching Placebo to Basmisanil, as per the dosing schedules described above.

Study groups in NCT02953639
Study groupRoleWhat they receive
PlaceboPlacebo comparatorParticipants received matching Placebo to Basmisanil orally twice daily for 24 weeks.
Receives: Drug: Placebo
Basmisanil 80mg BIDExperimentalParticipants received Basmisanil 80 mg orally twice daily (BID) for 24 weeks.
Receives: Drug: Basmisanil
Basmisanil 240mg BIDExperimentalParticipants received Basmisanil 240 mg orally twice daily (BID) for 24 weeks.
Receives: Drug: Basmisanil

What is being measured

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

  1. Change From Baseline to Week 24 in MATRICS Consensus Cognitive Battery (MCCB) Neurocognitive Composite Score

    The MCCB is a cognitive battery to assess 7 domains recommended by the MATRICS initiative (i.e., working memory, verbal learning, speed of processing, attention/vigilance, visual learning, social cognition, reasoning and problem solving). The MCCB neurocognitive composite T-score is a standardized mean of the six domain scores (excluding social cognition). Raw scores are converted to age and sex adjusted t-scores which are standardized to normative data, and have a mean of 50 and standard deviation of 10 in the general healthy population. A higher composite T-score represents lower impairment.

    Measured: Baseline up to Week 24

Secondary outcomes (14)
  1. Change From Baseline to Week 24 in MCCB Cognitive Domain Scores

    The MCCB is a cognitive battery to assess 7 domains recommended by the MATRICS initiative (i.e., working memory, verbal learning, speed of processing, attention/vigilance, visual learning, social cognition, reasoning and problem solving). Raw scores are converted to age and sex adjusted t-scores which are standardized to normative data, and have a mean of 50 and standard deviation of 10 in the general healthy population. A higher T-score represents lower impairment.

    Measured: Baseline up to Week 24

  2. Change From Baseline to Week 24 in Wechsler Memory Scale Fourth Edition, Verbal Paired Associates (WMS IV-PAL) Score

    The Paired Associates Learning (PAL I and II) of the WMS-IV (Wechsler Memory Scale Fourth edition) is a test of verbal learning and memory that requires the participant to learn novel word pairs. The participant learns the word pairs across learning trials and is asked to recall them immediately (PAL I) or after a 30-minute delay (PAL II). Data is presented here for 3 Scores: VPA I total raw score, VPA II total raw score and VPA II Recognition total raw score. The total raw score ranges for these 3 Scores are 0 to 56, 0 to 14 and 0 to 40 respectively, with larger total raw scores indicating better performance.

    Measured: Baseline up to Week 24

  3. Change From Baseline to Week 24 in Wechsler Memory Scale Fourth Edition, Logical Memory Test (WMS IV-LM) Score

    Logical memory (LM) assesses narrative memory under free-recall conditions. Two short stories are presented orally. The examinee is asked to retell each story from memory immediately after hearing it (LM I). In the delayed condition (LM II), the examinee is asked to retell both stories from the immediate condition (delayed free recall). Data is presented here for 2 Scores: LM I total raw score and LM II total raw score. The total raw score range is from 0 to 50 with larger total raw scores indicating better performance.

    Measured: Baseline up to Week 24

  4. Change From Baseline to Week 24 in Ratio Between Trail Making Test (TMT)- Part B and TMT- Part A Scores

    The TMT consists of two parts: Trail Making Part A, which is a part of the standard MCCB and Trail Making Part B additionally included in this study. Circles containing numbers (Part A) or both numbers and letters (Part B) must be sequentially connected. The difference (ratio) in performance between Part A and Part B reflects executive processes and will be used to assess executive functioning including cognitive set shifting abilities and data for this ratio is presented here. Smaller ratio values, hence decreases from baseline (TMT-B/TMT-A ratio values below 1) indicate higher executive functioning capabilities.

    Measured: Baseline up to Week 24

  5. Change From Baseline to Week 24 in Personal and Social Performance (PSP) Total Score

    The PSP Total Score is an integer result in the range of 0 to 100. Larger values, hence increases from baseline in the PSP total score, indicate higher social and personal functioning.

    Measured: Baseline up to Week 24

  6. Change From Baseline to Week 24 in Schizophrenia Cognition Rating Scale (SCoRS) Total Score

    The main parameter of interest for the Schizophrenia Cognition Rating Scale (SCoRS) is the SCoRS 'Total Score'. The total score range is from 0 to 80 with lower scores indicating better day-to-day functioning.

    Measured: Baseline up to Week 24

  7. Change From Baseline to Week 24 in Clinical Global Impression Severity (CGI-S) Rating

    Values for the CGI-S Scale are encoded by the numerical values from 1 to 7 respectively. Higher numerical values represent greater impairment.

    Measured: Baseline up to Week 24

  8. Change From Baseline to Week 24 in Clinical Global Impression Improvement (CGI-I) Rating

    Values for the CGI-I Scale are encoded by the numerical values from 1 to 7 respectively. Higher numerical values represent greater impairment.

    Measured: Baseline up to Week 24

  9. Change From Baseline to Week 24 in Schizophrenia Quality of Life Scale (SQLS)

    The SQLS is a patient reported scale consisting of 33 items: 2 domain scores (Cognition \& Vitality Score [SQLS-CV] and Psycho-social Score [SQLS-P]) as well as a Total score (SQLS-T) are derived. The overall score range is from 0 to 100. On all scales, higher scores represent a lower quality of life.

    Measured: Baseline up to Week 24

  10. Percentage of Participants With Adverse Events (AEs)

    An Adverse Event (AE) is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An Adverse Event can therefore be any unfavorable and unintended sign (including abnormal laboratory values or abnormal clinical test results), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as Adverse Events.

    Measured: Baseline up to 4 weeks after the last dose of study drug (up to 28 weeks)

  11. Apparent Clearance of Basmisanil at Steady State (CL/F,ss)

    Population PK model estimated apparent oral clearance of Basmisanil at steady-state.

    Measured: Pre-dose (hour 0) in Days 7, 14, 42, 84, 168

  12. Apparent Volume of Distribution of Basmisanil at Steady State (Vz/F,ss)

    Population PK model estimated apparent volume of distribution of Basmisanil at steady-state.

    Measured: Pre-dose (hour 0) in Days 7, 14, 42, 84, 168

  13. Area Under the Curve of Basmisanil at Steady State (AUC,ss)

    Population PK model estimated AUC of Basmisanil at steady-state.

    Measured: Pre-dose (hour 0) in Days 7, 14, 42, 84, 168

  14. Maximum Plasma Concentration of Basmisanil at Steady State (Cmax,ss)

    Population PK model estimated maximum plasma concentration of Basmisanil at steady-state (ss).

    Measured: Pre-dose (hour 0) in Days 7, 14, 42, 84, 168

Timeline

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

  1. First posted3 Nov 2016 (estimated)
  2. Study start30 Nov 2016
  3. Primary completion12 Dec 2019
  4. Study completion12 Dec 2019

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
214 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02953639
Sponsor's protocol ID
BP39207
Status last verified
Jan 2021
First submitted
1 Nov 2016
Last updated
9 Feb 2021
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Qualified researchers may request access to individual patient level data through the clinical study data request platform (www.vivli.org). Further details on Roche's criteria for eligible studies are available here (https://vivli.org/ourmember/roche/). For further details on Roche's Global Policy on the Sharing of Clinical Information and how to request access to related clinical study documents, see here (https://www.roche.com/research\_and\_development/who\_we\_are\_how\_we\_work/clinical\_trials/our\_commitment\_to\_data\_sharing.htm).

Publications

  • Umbricht D, Abt M, Derks M, Hernandez MC, Parkar N, Negron D, Koerner A, Holiga S, Goeldner C. A Phase 2b Multicenter Study to Evaluate Basmisanil as an Adjunctive Treatment in Patients With Cognitive Impairment Associated With Schizophrenia. J Clin Psychiatry. 2026 Apr 15;87(2):25m16022. doi: 10.4088/JCP.25m16022.

    PubMed 41983730

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Basmisanil in people with Schizophrenia, run by Hoffmann-La Roche at 37 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 4 inclusion and 6 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 9 Feb 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 37 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 9 Feb 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Change From Baseline to Week 24 in MATRICS Consensus Cognitive Battery (MCCB) Neurocognitive Composite Score (time frame: Baseline up to Week 24). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02953639, which also lists 1 linked publication.

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 9 Feb 2021.

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