New hope for brain fog in schizophrenia? drug trial targets memory and focus
NCT ID NCT07191483
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a new medicine called KYN-5356 to see if it can help with thinking and memory problems in people with schizophrenia. About 150 adults who are stable on their current schizophrenia treatment will take either a low, medium, or high dose of the drug or a placebo for 28 days while staying at a clinic. Researchers will measure changes in cognitive function using a digital test and check safety and drug levels in the body.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 150 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2025
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 55 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Has an established primary psychiatric diagnosis of schizophrenia * Clinically stable and in the residual (nonacute) phase of their illness for at least 8 weeks before screening in the judgement of the investigator * Diagnosis of schizophrenia for at least 1 year before screening * Must be in ongoing maintenance antipsychotic monotherapy on a stable medication treatment regimen for ≥ 2 months before screening, including concomitant psychotropic medications. * Male or female, aged ≥18 and ≤55 years * Has a body mass index (BMI) between 18 and 40 kg/m2 Inclusive * Must exhibit capability to comply with all protocol procedures in the judgement of the investigator * Signed and dated written informed consent before screening in accordance with Good Clinical Practice. Exclusion Criteria: * Currently being treated with more than 1 antipsychotic at the time of screening, * A score of 2 or higher on any of the individual items of the Modified Simpson-Angus Scale (mSAS) at screening * Moderate to severe substance use disorder (other than nicotine or caffeine, but including alcohol) * Evidence of unstable medical condition
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
14 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Arch Clinical Trials
RECRUITINGSt Louis, Missouri, 63125, United States
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Cenexel ACMR
RECRUITINGAtlanta, Georgia, 30331, United States
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Cenexel CBH
RECRUITINGGaithersburg, Maryland, 20877, United States
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Cenexel CNS
RECRUITINGLos Alamitos, California, 90720, United States
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Cenexel HRI
RECRUITINGMarlton, New Jersey, 08053, United States
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Cenexel RCA
RECRUITINGHollywood, Florida, 33024, United States
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Cenexel iResearch Atlanta
RECRUITINGDecatur, Georgia, 30030, United States
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Community Clinical Research
RECRUITINGAustin, Texas, 78754, United States
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Neuro-Behavioral Clinical Research
RECRUITINGNorth Canton, Ohio, 44720, United States
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NeuroBehavioral Hospitals of the Palm Beaches - South
RECRUITINGBoynton Beach, Florida, 33426, United States
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Segal Trials
TERMINATEDMiami Lakes, Florida, 33016, United States
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Synapse Clinical Trials
RECRUITINGCerritos, California, 80703, United States
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Synergy Research Center
RECRUITINGLemon Grove, California, 92064, United States
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Uptown Research Institute
RECRUITINGChicago, Illinois, 60640, United States
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Woodland International Research Group
RECRUITINGLittle Rock, Arkansas, 72211, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Your voice may reveal if You're taking your psychiatric medication
- Scientists probe brain's reward system in mental illness
- New schizophrenia drug targets brain glutamate, not dopamine
- New drug candidate takes aim at schizophrenia symptoms
- New schizophrenia drug goes Head-to-Head with standard antipsychotics in Long-Term trial
- Five-Year safety check for experimental schizophrenia drug