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A Blinded, Four-Way Crossover in Healthy Subjects to Assess EEG After Administration of Ketamine, Placebo and AZD6765 (AZD6765 EEG)

This study has been terminated.
(The benefit of halting the study to analyze the available data outweighs the benefit of delaying the analysis to include data from remaining treatment periods)
Information provided by (Responsible Party):
AstraZeneca Identifier:
First received: May 19, 2010
Last updated: October 10, 2014
Last verified: October 2014
This study will provide data to support preclinical to clinical translation by aligning preclinical and clinical efficacy assay with dose dependent changes in EEG.

Condition Intervention Phase
Drug: AZD6765
Drug: Ketamine
Drug: Placebo
Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double Blind (Participant, Investigator)
Primary Purpose: Basic Science
Official Title: A Phase I, Randomized, Double-Blind, Four-way Cross-over Study in Healthy Subjects to Assess Quantitative Electroencephalography (qEEG) Parameters After the Administration of Ketamine, Two Doses of AZD6765 and Placebo

Resource links provided by NLM:

Further study details as provided by AstraZeneca:

Primary Outcome Measures:
  • qEEG assessed through the gamma bands [ Time Frame: Day 1 of each treatment period at Predose, 0.25h, 1h, 1.25h, 3h and 8h ]

Secondary Outcome Measures:
  • Pupil Size - to assess the relationship between qEEG and pupil size [ Time Frame: Day 1 of each treatment period at Predose, 0.25h, 1h, 1.25h, 3h, and 8h ]
  • Electronystagmography - to assess the relationship between qEEG and spontaneous nystagmus. [ Time Frame: Day 1 of each treatment period at Predose, 1h, 3h, and 8h ]
  • Bond/Lader scales and eVAS - to assess the subject's alertness, calmness and contentment [ Time Frame: Day 1 of each treatment period at Predose, 0.5h, 1h, 1.5h, 2h, 2.5h, 3h, and 8h ]

Enrollment: 36
Study Start Date: May 2010
Study Completion Date: January 2011
Primary Completion Date: January 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: AZD6765 75 mg Drug: AZD6765
75 mg
Experimental: AZD6765 150 mg Drug: AZD6765
150 mg
Active Comparator: Ketamine 0.5 mg/kg Drug: Ketamine
0.5 mg/kg
Placebo Comparator: 125 mL sterile NaCl 0.9% Drug: Placebo
125 mL sterile NaCl 0.9%

Detailed Description:
A Phase I, Randomized, Double-Blind, Four-way Cross-over Study in Healthy Subjects to Assess Quantitative Electroencephalography (qEEG) parameters after the administration of ketamine, two doses of AZD6765 and Placebo

Ages Eligible for Study:   30 Years to 45 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • BMI 18-30 Non-smoker for at least 4 weeks

Exclusion Criteria:

  • Any clinically relevant acute or chronic disease
  • History of substance abuse Hypersensitivity to ketamine
  Contacts and Locations
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Please refer to this study by its identifier: NCT01130909

Research Site
Rouffach, France
Sponsors and Collaborators
Study Director: Albena Patroneva, MD AstraZeneca
Principal Investigator: Francine Santoro Forenap
  More Information

Additional Information:
Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: AstraZeneca Identifier: NCT01130909     History of Changes
Other Study ID Numbers: D2285M00008
Study First Received: May 19, 2010
Last Updated: October 10, 2014

Keywords provided by AstraZeneca:
Effect of a single dose on gamma-band qEEG

Additional relevant MeSH terms:
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Anesthetics, Dissociative
Anesthetics, Intravenous
Anesthetics, General
Central Nervous System Depressants
Excitatory Amino Acid Antagonists
Excitatory Amino Acid Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action processed this record on May 25, 2017