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Psychiatric IllnessPhase 2NCT01844726

Effects of GLYX-13 on Learning and Memory in Healthy Individuals and Those With Psychiatric Illness

A Phase 2 study testing GLYX-13 in people with Psychiatric Illness and Healthy, run by Northwestern University at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The present study proposes to evaluate the potential cognitive enhancing effects of GLYX-13, an NMDAR partial agonist, among a group of healthy adults and those with psychiatric illness on a series of functional magnetic resonance imaging (fMRI) learning and memory tasks. Read more about this study

Who is it for?
Ages 18 to 40 yearsHealthy volunteers can take part
Conditions the study is for
Psychiatric Illness, Healthy
What is being tested?
GLYX-13
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
44 participants
Where
1 siteUnited States
Study dates
May 2013to Jan 2016
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 40 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • For all Individuals
  • Male and female subjects
  • Ages 18 - 40 years
  • General intellectual abilities falling broadly within the average range (estimated intelligence quotient (IQ) between 80 - 119)
  • Sufficient ability to understand study requirements and provide written informed consent
  • For Patients
  • -Diagnosis of Schizophrenia or Schizoaffective Disorder

Who cannot join

  • For all individuals:
  • History of neurologic disorder or systemic medical condition that may interfere with central nervous system function
  • History of seizures
  • History of heard injury with loss of consciousness or concussion
  • Positive screen for drugs of abuse: cocaine, marijuana, phencyclidine, ketamine, opioid, or other agent that is being abused in the opinion of the investigator
  • Females who are currently pregnant or plan to become pregnant during the study period
Show all 20Show fewer
  • History of allergy, sensitivity, or intolerance to N-methyl-D-Aspartate receptor (NMDAR) ligands including ketamine, dextromethorphan, memantine, methadone, dextropropoxyphene, or ketobemidone
  • History of any ferromagnetic object in the body
  • Presence of any medical device or implant for which MRI is contraindicated including cardiac pacemaker, aneurysm clip, cochlear implant, copper intrauterine device (IUD), neurostimulator, or any other device deemed unsafe
  • Bullet or shrapnel in body
  • Metallic braces or permanent retainer
  • Significant claustrophobia
  • For Healthy Individuals
  • Personal history of any Axis I disorder according to the Structured Clinical Interview for the DSM-5 (SCID-5) criteria
  • History of treatment with antidepressant, antipsychotic, stimulant,sedative/ hypnotic, mood stabilizing, or anticholinergic medications or lithium
  • History among first-degree family members of any psychotic illness or major mood disorder (e.g., major depressive disorder, recurrent; bipolar I or II disorder)
  • For Patients
  • Treatment with Clozaril
  • Change in medication within 1 month
  • Hospitalization within 1 month

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Northwestern University

    Chicago, Illinois, 60611

Other trials in United States

About this study

Official title: Functional Neuroimaging Effects of the N-methyl-D-aspartate Receptor (NMDAR) Partial Agonist, GLYX-13, on Learning and Memory in Healthy Individuals

The present study proposes to evaluate the potential cognitive enhancing effects of GLYX-13, an NMDAR partial agonist, among a group of healthy adults and those with psychiatric illness on a series of functional magnetic resonance imaging (fMRI) learning and memory tasks.

Read the detailed description

In a single blind randomized parallel group design, we will evaluate the whether a single dose of GLYX-13 vs. placebo increases cognitive performance on tasks of learning, declarative memory, and working memory, and associated task-related increases in blood oxygen level-dependent (BOLD) activation in hippocampus and dorsolateral prefrontal cortex, respectively. Positive findings will provide biomarker evidence for GLYX-13 effects on neural systems underlying these cognitive processes.

Being tested
GLYX-13, Placebo
Keywords
healthy individuals, schizophrenia, schizoaffective disorder, learning, memory, cognitive enhancement, fMRI
Medical subject headings
Mental Disorders, Schizophrenia, Psychotic Disorders

What participants receive

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

  • GLYX-13Drug

    Single injection (5 mg/kg) of GLYX-13, an NMDAR partial agonist

  • PlaceboDrug

    Single injection of placebo (saline)

Study groups in NCT01844726
Study groupRoleWhat they receive
GLYX-13ExperimentalSingle IV infusion of GLYX-13, 5mg/kg,
Receives: Drug: GLYX-13
PlaceboPlacebo comparatorSingle IV administration of placebo
Receives: Drug: Placebo

What is being measured

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

  1. Percentage of Change in fMRI BOLD Signal During a Category Learning Task

    Evidence of enhanced functional magnetic resonance imaging (fMRI) blood oxygen level-dependent (BOLD) signal change during a category learning task among individuals receiving GLYX-13 administration compared to those receiving placebo.

    Value represents fMRI BOLD signal change (in % change) across a task derived functional network. Higher scores indicate greater task-based activation across this functional circuit.

    Measured: within 1 hour of administration

Secondary outcomes (1)
  1. Category Learning Behavioral Performance

    This measure reflects the percentage of correct trials on a category learning task in which subjects learned the category membership (group A or group B) of 8 three-digit numbers presented over 64 trials. Higher values (>50%) reflect increased accuracy in learning the category membership.

    Measured: within 1 hour of administration

Timeline

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

  1. First posted1 May 2013 (estimated)
  2. Study startMay 2013
  3. Primary completionJan 2016
  4. Study completionJan 2016

Why it stopped: Study sponsor was acquired by another company.

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
Single blind
Who is masked
Participant
Enrolment
44 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01844726
Sponsor's protocol ID
STU77430
Status last verified
Mar 2023
First submitted
29 Apr 2013
Last updated
20 Apr 2023
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing GLYX-13 in people with Psychiatric Illness and Healthy, run by Northwestern University at 1 site 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 7 inclusion and 20 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: stopped early, as of the sponsor's last update on 20 Apr 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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 20 Apr 2023). 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?

Percentage of Change in fMRI BOLD Signal During a Category Learning Task (time frame: within 1 hour of administration). 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 20 Apr 2023.

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