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Dose-Response of Adenosine for Perioperative Pain

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ClinicalTrials.gov Identifier: NCT00298636
Recruitment Status : Completed
First Posted : March 2, 2006
Last Update Posted : August 2, 2006
Information provided by:
Xsira Pharmaceuticals

February 28, 2006
March 2, 2006
August 2, 2006
October 2005
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Same as current
Complete list of historical versions of study NCT00298636 on ClinicalTrials.gov Archive Site
Same as current
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Dose-Response of Adenosine for Perioperative Pain
A Phase 2, Randomized, Double-Blind, Placebo-Controlled, Escalating Dose-Response Trial of Intravenous Adenosine for Perioperative Analgesia in Females Undergoing Abdominal Hysterectomy or Myomectomy
Adenosine A1 and A2 receptors are widely distributed in the brain and spinal cord and represent a non-opiate target for pain management. Activated spinal A1 receptors inhibit sensory transmission by inhibiting the slow ventral root potential, which is the C-fiber-evoked excitatory response associated with nociception. Adenosine may inhibit intrinsic neurons through an increase in K+ conductance and presynaptic inhibition of sensory nerve terminals to inhibit the release of substance P and perhaps glutamate. Although adenosine A3 receptors are not found in the nervous system, adenosine is also known to have anti-inflammatory properties that may contribute to pain relief in the peripheral setting of inflammation.
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Phase 2
Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Double
Primary Purpose: Treatment
Perioperative Pain
Drug: adenosine
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*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
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Inclusion Criteria:

  • Female gender; age 18 to 65 years;
  • American Society of Anesthesiology (ASA) physical classification I to III;
  • scheduled for non-emergent abdominal hysterectomy (with or without salpingo-oophorectomy) or myomectomy under general anesthesia;

Exclusion Criteria:

  • ASA physical classification of IV or V;
  • documented history of cardiovascular disease including coronary artery disease, uncontrolled hypertension, aortic stenosis, congestive heart failure, cardiac arrhythmias or conduction defects greater that first degree atrioventricular (AV) block, sinoatrial (SA) or AV node disease including sick sinus syndrome or symptomatic bradycardia, presence of devices including pacemakers or internal defibrillators, or history of symptoms consistent with any of the aforementioned conditions (e.g., angina, dyspnea on exertion, paroxysmal nocturnal dyspnea);
  • history of asthma, bronchospastic lung disease, or hyper-reactive airway disease;
  • history of gout;
Sexes Eligible for Study: Female
18 Years to 65 Years   (Adult)
Contact information is only displayed when the study is recruiting subjects
United States
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Xsira Pharmaceuticals
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Principal Investigator: Tong J Gan, M.D. Duke University
Xsira Pharmaceuticals
August 2006

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP