A Study to Evaluate the Efficacy and Safety of Tapentadol (CG5503) in the Treatment of Acute Pain After Abdominal Hysterectomy
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ClinicalTrials.gov Identifier: NCT00478023 |
Recruitment Status :
Completed
First Posted : May 24, 2007
Results First Posted : January 27, 2010
Last Update Posted : October 28, 2019
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Hysterectomy Postoperative | Drug: Morphine Drug: CG5503 IR Drug: Placebo | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 854 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Triple (Participant, Care Provider, Investigator) |
Primary Purpose: | Treatment |
Official Title: | A Randomized, Double-blind, Parallel-arm, Placebo- and Comparator- Controlled Trial of the Efficacy and Safety of Multiple Doses of Immediate-release (IR) CG5503 for Postoperative Pain Following Abdominal Hysterectomy |
Study Start Date : | May 2007 |
Actual Primary Completion Date : | February 2008 |
Actual Study Completion Date : | April 2008 |

Arm | Intervention/treatment |
---|---|
Active Comparator: Morphine |
Drug: Morphine
20 mg IR; 4 - 6 hourly; Total 72 hours |
Experimental: Tapentadol 50 mg immediate release |
Drug: CG5503 IR
50mg; 4 - 6 hourly; Total 72 hours
Other Name: Tapentadol |
Experimental: Tapentadol 75 mg immediate release |
Drug: CG5503 IR
75mg; 4 -6 hourly; Total 72 hours
Other Name: Tapentadol |
Experimental: Tapentadol 100 mg immediate release |
Drug: CG5503 IR
100mg, 4 - 6 hourly; Total 72 hours
Other Name: Tapentadol |
Placebo Comparator: Matched placebo |
Drug: Placebo
4 - 6 hourly; Total 72 hours |
- Sum of Pain Intensity Differences Relative to the Baseline Pain Intensity. [ Time Frame: Baseline to 24 hours after first intake of study drug ]Pain Intensity assessed at predefined time points over a 24 hour period using an 11-point Numeric Rating Scale (NRS) where a score of zero indicates "no pain" and a score of ten indicates "pain as bad as you can imagine". Differences calculated as [baseline-post baseline] at each predefined time point. The theoretical maximum range of Sum of pain intensity differences (SPID24) is from -240 (indicative of an increase in pain) to 240 (indicative of a decrease in pain, assuming patients start with a baseline value of 10 and all subsequent values will be 0).
- Sum of Pain Intensity Differences Relative to the Baseline Pain Intensity [ Time Frame: Baseline value to 48 hours after first study drug intake. ]Pain Intensity assessed at predefined time points over a 48 hour period using an 11-point Numeric Rating Scale (NRS) where a score of zero indicates "no pain" and a score of ten indicates "pain as bad as you can imagine". Differences calculated as [baseline-post baseline] at each predefined time point. The theoretical maximum range of Sum of pain intensity differences (SPID48) is from -480 (indicative of an increase in pain) to 480 (indicative of a decrease in pain, assuming patients start with a baseline value of 10 and all subsequent values will be 0).

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Ages Eligible for Study: | 18 Years to 80 Years (Adult, Older Adult) |
Sexes Eligible for Study: | Female |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Female between 18 and 80 years of age;
- Scheduled to undergo an abdominal hysterectomy with or without bilateral salpingo-oophorectomy due to uterine leiomyomas, or dysfunctional uterine bleeding or endometrial hyperplasia;
- Anesthesiological and surgical procedures performed according to protocol;
- Moderate or severe baseline pain following hysterectomy on a Verbal Rating Scale (VRS) within 6 hours following the last possible application of morphine subcutaneous;
- Pain following hysterectomy of at least 4 on an 11-point Numeric Rating Scale (NRS) within 6 hours following the last possible application of morphine subcutaneous;
- American Society of Anesthesiologists (ASA) classification I-III.
Exclusion Criteria:
- Vaginal hysterectomy;
- Ongoing or known history of painful endometriosis;
- Known or suspected chronic pelvic pain syndrome;
- Previous abdominal or pelvic open surgery;
- History of seizure disorder or epilepsy;
- History of alcohol or drug abuse;
- Evidence of active infections that may spread to other areas of the body;
- severely impaired renal function, moderately or severely impaired hepatic function,
- Allergy or hypersensitivity to oxycodone, morphine, fentanyl hydromorphone, heparin, or any compound planned to be used during the anesthesia;
- Serious complication during surgery and up to randomization;
- Pre-operative use within 12hours prior to surgery or peri-operative use of non-steroidal anti-inflammatory drugs (NSAIDs);
- Treated regularly with opioid analgesic or non-steroidal anti-inflammatory drugs (NSAIDs) within 30 days prior to screening;

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): NCT00478023

Principal Investigator: | Tomasz Rechberger, Prof. | Samodzielny Publiczny Szpital |
Responsible Party: | Grünenthal GmbH |
ClinicalTrials.gov Identifier: | NCT00478023 |
Other Study ID Numbers: |
731200 |
First Posted: | May 24, 2007 Key Record Dates |
Results First Posted: | January 27, 2010 |
Last Update Posted: | October 28, 2019 |
Last Verified: | October 2019 |
Opioid Central acting analgesic Pain postoperative Abdomen acute |
CG5503 IR Morphine Placebo |
Morphine Tapentadol Analgesics, Opioid Narcotics Central Nervous System Depressants Physiological Effects of Drugs Analgesics Sensory System Agents |
Peripheral Nervous System Agents Adrenergic Uptake Inhibitors Neurotransmitter Uptake Inhibitors Membrane Transport Modulators Molecular Mechanisms of Pharmacological Action Adrenergic Agents Neurotransmitter Agents |