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Effect of Acute Treatment With N2O on Inhibitory Pain Mechanisms in Healthy Subject

This study is not yet open for participant recruitment. (see Contacts and Locations)
Verified June 2012 by Tel-Aviv Sourasky Medical Center
Information provided by (Responsible Party):
Tel-Aviv Sourasky Medical Center Identifier:
First received: June 3, 2012
Last updated: September 21, 2014
Last verified: June 2012

The purpose of this study is to determine whether N2O (laughing gas) has an antinociceptive effects in healthy volunteers.

Condition Intervention
Drug: N2O
Drug: Air

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Crossover Assignment
Masking: Single Blind (Subject)
Primary Purpose: Basic Science
Official Title: Effect of Acute Treatment With N2O on Inhibitory Pain Mechanisms in Healthy Subject

Further study details as provided by Tel-Aviv Sourasky Medical Center:

Primary Outcome Measures:
  • Pain Scores on the Visual Analog Scale [ Time Frame: August 2016 ] [ Designated as safety issue: No ]

Estimated Enrollment: 10
Study Start Date: October 2014
Estimated Study Completion Date: August 2016
Estimated Primary Completion Date: August 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: N2O
N20 70% inhalation 5 minutes O2 100 % inhalation for 5 minutes
Drug: N2O
Other Name: laughing gas
Sham Comparator: Air Drug: Air
sham comparator

Detailed Description:

10 healthy volunteers will come twice to the pain medicine unit, at 1 visit they'll get N2O and in the second visit they'll get air as placebo, they won't know what they're getting. During the visit they'll get heat stimulus using QST and will have to report their pain using eVAS (scale from 0 to 100 when 0 is no pain and 100 is the worst pain imagine).


Ages Eligible for Study:   18 Years to 50 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • 18-50 years old
  • women and men
  • healthy

Exclusion Criteria:

  • smokers
  • medication use pregnant woman cardiovascular disease
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01616004

Contact: Silviu Brill, M.D 972-3-6974477

Tel Aviv Sourasky Medical Center, Pain Medicine Unit Not yet recruiting
Tel Aviv, Israel
Contact: silviu Brill, M.D    972-3-6974477   
Sponsors and Collaborators
Tel-Aviv Sourasky Medical Center
Principal Investigator: Silviu Brill, MD Tel-Aviv Sourasky Medical Center
  More Information

No publications provided

Responsible Party: Tel-Aviv Sourasky Medical Center Identifier: NCT01616004     History of Changes
Other Study ID Numbers: TASMC-12-SB-340-CTIL
Study First Received: June 3, 2012
Last Updated: September 21, 2014
Health Authority: Israel: Ministry of Health processed this record on November 20, 2014