Postoperative Pain and SIRS After Preoperative Analgesia With Clonidine or Levobupivacaine (PPSAPACL)
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ClinicalTrials.gov Identifier: NCT00860899 |
Recruitment Status :
Completed
First Posted : March 12, 2009
Last Update Posted : November 17, 2011
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Condition or disease | Intervention/treatment | Phase |
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Analgesia Pain Systemic Inflammatory Stress Response | Drug: clonidine, levobupivacaine | Phase 4 |
Investigations showed that upregulation of prostaglandin E2 and interleukin-6 at central sites is an important component of surgery induced inflammatory response in patients. Postoperative period is associated with an increased production of cytokines, which augment pain sensitivity. With adequate perioperative pain control it is possible to control central and peripheral inflammatory response to surgery, and influence on patient outcomes. Use of analgetics before the pain stimulus (preventive analgesia) prevent development of neuroplastic changes in central nervous system, and reduces pain. Clonidine is an alpha2-adrenergic agonist with sedative, analgesic and hemodynamic properties. It inhibits transmission of nociceptive stimuli in the dorsal horn of the spinal cord, acting on the inhibitory descending pathways. According to recent experimental investigations clonidine lowers proinflammatory cytokine level, and prevents hypersensitization acting through adrenoreceptors alpha-2A.
Levobupivacaine is a long-acting local anesthetic, S-enantiomer of bupivacaine, with identical anesthetic potency. When administered intraperitoneally or by local infiltration of operation site, levobupivacaine produced analgesia and reduction of proinflammatory cytokines. Investigations of epidural and intrathecal levobupivacaine provide evidence for improved postoperative analgesia with reduced analgesic consumption. But, it remains unknown if that analgesia is sufficient enough to blockade inflammatory stress response during perioperative time.We want to investigate and compare analgesic and immunomodulation efficacy of this two frequently used analgesics.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 42 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double (Participant, Investigator) |
Primary Purpose: | Treatment |
Official Title: | Postoperative Pain and Systemic Inflammatory Stress Response (SIRS) After Preoperative Analgesia With Clonidine or Levobupivacaine |
Study Start Date : | December 2007 |
Actual Primary Completion Date : | October 2008 |
Actual Study Completion Date : | May 2009 |

Arm | Intervention/treatment |
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Active Comparator: clonidine
Clonidine is an alpha2-adrenergic agonist with sedative, analgesic and hemodynamic properties. It inhibits transmission of nociceptive stimuli in the dorsal horn of the spinal cord, acting on the inhibitory descending pathways.
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Drug: clonidine, levobupivacaine
One hour prior to skin incision, on epidural catheter, patients received 5 µg/kg of clonidine [Catapres®, Boehringer Ingelheim, Germany], 7 mL of 0.25% levobupivacaine [Chirocaine®, Abbott S.p.A., Italy] or 7 mL of saline.The study was designed to compare clonidine and levobupivacaine, and than both with the control group, in order to asses their analgesic and immunomodulation efficacy.
Other Names:
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Active Comparator: levobupivacaine
Levobupivacaine is long-acting local anesthetic, S-enantiomer of bupivacaine, with identical anesthetic potency.
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Drug: clonidine, levobupivacaine
One hour prior to skin incision, on epidural catheter, patients received 5 µg/kg of clonidine [Catapres®, Boehringer Ingelheim, Germany], 7 mL of 0.25% levobupivacaine [Chirocaine®, Abbott S.p.A., Italy] or 7 mL of saline.The study was designed to compare clonidine and levobupivacaine, and than both with the control group, in order to asses their analgesic and immunomodulation efficacy.
Other Names:
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- postoperative pain level [ Time Frame: 1 h before surgery, 1 h after start of the surgery, 1 h , 6 h , 12 h and 24 h after surgery ]
- systemic inflammatory stress response [ Time Frame: 1 hour before surgery, 1 hour after start of the surgery, 1 h , 6 h , 12 h and 24 h after surgery ]

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Ages Eligible for Study: | 42 Years to 77 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- colorectal resection surgery patients
- preoperative risk of anesthesia and operation, ASA (American Society of Anesthesiologists) physical status I or II
Exclusion Criteria:
- diabetes mellitus
- renal insufficiency
- liver insufficiency
- autoimmune disease
- corticosteroid and immunosuppressive use
- operation time exceeding six hours

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 ClinicalTrials.gov identifier (NCT number): NCT00860899
Croatia | |
University Hospital Dubrava | |
Zagreb, Croatia, 10000 |
Principal Investigator: | Jasminka Persec, MD PhD | Anesthesiology, Resuscitation and Intensive Care Medicine Clinic, University Hospital Dubrava | |
Study Chair: | Zoran Persec, MD Msc | Department of Urology, University Hospital Dubrava | |
Study Director: | Ino Husedzinovic, Prof. MD PhD | Anesthesiology, Resuscitation and Intensive Care Medicine Clinic, University Hospital Dubrava |
Responsible Party: | Jasminka Persec, MD, PhD, MD PhD, University Hospital Dubrava |
ClinicalTrials.gov Identifier: | NCT00860899 |
Other Study ID Numbers: |
1860 1861 |
First Posted: | March 12, 2009 Key Record Dates |
Last Update Posted: | November 17, 2011 |
Last Verified: | November 2011 |
clonidine levobupivacaine preoperative analgesia postoperative pain |
systemic inflammatory stress response epidural analgesia Anesthetics, Local |
Agnosia Pain, Postoperative Perceptual Disorders Neurobehavioral Manifestations Neurologic Manifestations Nervous System Diseases Postoperative Complications Pathologic Processes Pain Clonidine Levobupivacaine Analgesics Sensory System Agents Peripheral Nervous System Agents |
Physiological Effects of Drugs Antihypertensive Agents Sympatholytics Autonomic Agents Adrenergic alpha-2 Receptor Agonists Adrenergic alpha-Agonists Adrenergic Agonists Adrenergic Agents Neurotransmitter Agents Molecular Mechanisms of Pharmacological Action Anesthetics, Local Anesthetics Central Nervous System Depressants |