Examining the Effects of CXB722 in Neuroendocrine Stress Response in Healthy Males (CXB722-100)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00814931
Recruitment Status : Completed
First Posted : December 25, 2008
Last Update Posted : January 13, 2009
Information provided by:
National Institute on Aging (NIA)

Brief Summary:
The purpose of this study is to assess the effects of CXB722 on neuroendocrine stress response and subjective reports related to mood and stress during and after experimentally induced stress among healthy young males.

Condition or disease Intervention/treatment Phase
Stress Anxiety Drug: CXB722 Drug: Placebo Phase 1

Detailed Description:

Acute stress produces a cascade of physiological and psychological effects, including increased cardiovascular function, increases in circulating levels of stress hormones and neurotransmitter levels, and changes in mood and subjective state. The Trier Social Stress Test (TSST) is a standardized, well-validated procedure that was developed in order to provide a controlled method for exposing subjects to a stressor. The TSST consists of a public speaking and a mental arithmetic test performed in the context of a mock job interview.

A drug that could safely block or mitigate the stress response would have multiple applications in medicine, beyond treating anxiety, because stress is associated with many disease states, including cardiovascular disease. The drug being studied, CXB722, is thought to show promise in diminishing the physiologic and psychological effects of stress.

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 23 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Phase 1, Multiple Dose, Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study Examining the Effects of CXB722 in Mitigating Neuroendocrine Stress Response in Healthy Males
Study Start Date : December 2008
Actual Primary Completion Date : December 2008
Actual Study Completion Date : December 2008

Arm Intervention/treatment
Experimental: 1
Treatment Group
Drug: CXB722
900 mg CXB722 oral liquid suspension twice a day for 8 days
Other Name: Pivagabine
Placebo Comparator: 2 Drug: Placebo
matching oral liquid suspension placebo twice a day for 8 days

Primary Outcome Measures :
  1. Plasma cortisol and salivary cortisol levels [ Time Frame: Screening and Study Day 8 ]

Secondary Outcome Measures :
  1. Plasma ACTH [ Time Frame: Screening and Study Day 8 ]
  2. Plasma epinephrine and norepinephrine [ Time Frame: Screening and Study Day 8 ]
  3. Profile of Mood States (POMS) Tension-Anxiety [ Time Frame: Screening and Study Day 8 ]
  4. Fatigue-Inertia, and Vigor-Activity factor scores [ Time Frame: Screening and Study Day 8 ]
  5. "State" score on the Spielberger State-Trait Anxiety Scale (SSTAS) [ Time Frame: Screening and Study Day 8 ]
  6. Seven Visual Analog Scales (VAS) [ Time Frame: Screening and Study Day 8 ]
  7. HR, and systolic and diastolic BP [ Time Frame: Screening and Study Day 8 ]

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 34 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Male, 18 to 34 years of age, inclusive, at screening
  • Able to read, understand and converse in English
  • Able to read, understand, and provide written, dated informed consent
  • Willing to refrain from the use of any concomitant medications (including over-the counter (OTC)) and nutritional/herbal supplements and comply with all study requirements
  • Willing to submit to daily breathalyzer testing each day study medication is administered over the course of the study
  • In good general health as ascertained by medical history, physical examination (PE) including measurement of vital signs, clinical laboratory evaluations, and 12-lead electrocardiogram (ECG)

Exclusion Criteria:

  • Evidence on physical examination or laboratory findings of chronic liver or renal disease or other chronic physical disorders
  • Evidence of cardiovascular disease on 12 lead ECG, vital signs or laboratory findings
  • Significant anxiety as indicated by a score of 47 or higher on the "Trait" score of Spielberger State-Trait Anxiety Scale
  • Family history (first degree relative) of hypertension or cardiovascular disease prior to age 40
  • Evidence on physical or laboratory examination of endocrinopathies or immunopathies, including HIV
  • BMI of 30 or greater, evidence of significant recent weight change or history of obesity
  • History of any psychiatric disorder, or evidence of such a disorder based on a psychiatric evaluation which includes the Structured Clinical Interview for DSM-IV-TR (SCID)
  • History of any physical condition which, in the investigator's opinion, might put the participant at risk or interfere with the interpretation of study results
  • Use of any prescription or over-the-counter (OTC) medications (including herbal remedies) within 14 days of study randomization
  • Use of tobacco products or any nicotine-containing products (e.g., gum, patch) within the past 6 months (prior to screening)
  • Positive screening urine test for nicotine or drugs of abuse: cannabinoids, cocaine, amphetamines, barbiturates, opiates, benzodiazepines, or alcohol in the blood
  • Unwillingness to agree to avoid strenuous activity over the course of the study
  • Poor likelihood, in the investigator's judgment, of full cooperation during the study and/or poor compliance is anticipated
  • Previously screened for this trial
  • Consumes more than four cups of coffee daily
  • Deviates from normal nocturnal sleeping patterns

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00814931

United States, Florida
University of South Florida
Tampa, Florida, United States, 33612
Sponsors and Collaborators
CeNeRx BioPharma Inc.
Principal Investigator: Carlos Santana, MD USF Physicians Group, Associate Professor, Director of Adult Outpatient Services, Department of Psychiatry and Behavioral Medicine