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Single Ascending Dose Safety, Tolerability and Pharmacokinetics Study of GLYX-13 in Normal Volunteers

This study has been completed.
Information provided by (Responsible Party):
Naurex, Inc Identifier:
First received: November 13, 2009
Last updated: February 18, 2016
Last verified: February 2016
The purpose of this study is to evaluate the safety, tolerability and pharmacokinetics of a single IV dose of GLYX-13, an N-Methyl-D-aspartate (NMDA) receptor glycine site functional partial agonist, in normal, healthy human volunteers.

Condition Intervention Phase
Drug: GLYX-13
Drug: IV normal saline
Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Double Blind (Participant, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Randomized, Double-Blind, Placebo-Controlled Single Intravenous Dose, Ascending Dose Level Study of the Safety, Tolerability and Pharmacokinetics of GLYX-13 in Normal Healthy Volunteers

Resource links provided by NLM:

Further study details as provided by Naurex, Inc:

Primary Outcome Measures:
  • Observed and laboratory-confirmed safety [ Time Frame: four weeks ]

Secondary Outcome Measures:
  • Plasma concentration of parent drug will be assessed over time to estimate duration of pharmacodynamics in future efficacy trials. Plasma concentration and pharmacokinetics will be related in time to observed side effects. [ Time Frame: 24 hours ]

Enrollment: 53
Study Start Date: November 2009
Study Completion Date: October 2015
Primary Completion Date: October 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: IV normal saline
Single IV dose of normal saline as a control for safety and tolerability observations
Drug: IV normal saline
Single IV dose of normal saline
Other Name: Saline
Experimental: IV GLYX-13
Single IV dose of GLYX-13
Drug: GLYX-13
single IV or SC dose
Other Name: NMDA receptor glycine site partial agonist
Experimental: SC GLYX-13
Single SC dose
Drug: GLYX-13
single IV or SC dose
Other Name: NMDA receptor glycine site partial agonist

Detailed Description:
NMDA receptor glycine site partial agonists (GFPAs) have been demonstrated to be efficacious in animal models and/or in early human studies of several Central Nervous System (CNS) diseases including neuropathic pain, major depressive disorder, schizophrenia, Alzheimer's disease, anxiety including posttraumatic stress syndrome, and cognition in Down's syndrome and autism and others, without the psychomimetic side effects of NMDA receptor channel blockers. GLYX-13 has demonstrated a wide therapeutic ratio (500:1) between efficacy and side effects in animals. The purpose of this study is to evaluate the safety and pharmacokinetics of GLYX-13 following a single IV dose.

Ages Eligible for Study:   18 Years to 55 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • clinical laboratory values < 2x the upper limit of normal
  • ability to understand the requirements of the study and provide informed consent

Exclusion Criteria:

  • alcohol abuse
  • abuse of illicit substances
  • current smoker
  • currently taking prescription medications (other than for birth control)
  • history of allergy to NMDA receptor ligands
  • received another investigational drug within 30 days
  • psychiatric disease
  Contacts and Locations
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Please refer to this study by its identifier: NCT01014650

United States, California
Lotus Clinical Research
Pasadena, California, United States, 91105
Sponsors and Collaborators
Naurex, Inc
Study Director: Neil Singla, MD Lotus Clinical Research
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Naurex, Inc Identifier: NCT01014650     History of Changes
Other Study ID Numbers: GLYX13-C-101
Study First Received: November 13, 2009
Last Updated: February 18, 2016

Keywords provided by Naurex, Inc:
glycine site partial agonist
normal volunteers
safety in normal volunteers

Additional relevant MeSH terms:
Glycine Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs processed this record on April 26, 2017