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A Randomized Controlled Study of Rolapitant for the Prevention of Nausea and Vomiting Following Surgery (Study P04937AM1)(COMPLETED)

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: October 4, 2007
Last Update Posted: November 1, 2013
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.
Information provided by (Responsible Party):
Merck Sharp & Dohme Corp.
This is a multicenter, randomized, controlled study in women who are having elective open abdominal surgery with general anesthesia and who are expected to need patient-controlled analgesia (PCA) after surgery. The primary objective is to assess the effect of rolapitant in the prevention of postoperative nausea and vomiting as measured by the prevention of vomiting in the first 24 hours after surgery. Participation in the study may last up to 3 months. The total duration of the study will be approximately 36 weeks.

Condition Intervention Phase
Postoperative Nausea and Vomiting Drug: Rolapitant Dose 1 Drug: Rolapitant Dose 2 Drug: Rolapitant Dose 3 Drug: Rolapitant Dose 4 Drug: Ondansetron Drug: Placebo Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Prevention
Official Title: A Randomized, Double-Blind, Double-Dummy, Dose-Ranging, Active- and Placebo-Controlled Study of Single-Dose Oral Rolapitant Monotherapy for the Prevention of Postoperative Nausea and Vomiting (PONV)

Resource links provided by NLM:

Further study details as provided by Merck Sharp & Dohme Corp.:

Primary Outcome Measures:
  • No emetic episodes regardless of rescue medication use. [ Time Frame: First 24 hours after surgery. ]

Enrollment: 619
Study Start Date: October 2007
Study Completion Date: July 2008
Primary Completion Date: July 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Rolapitant Dose 1 Drug: Rolapitant Dose 1
Rolapitant 5 mg (4 capsules) x 1 oral and ondansetron placebo x 1 intravenous on Day 1
Experimental: Rolapitant Dose 2 Drug: Rolapitant Dose 2
Rolapitant 20 mg (4 capsules) x 1 oral and ondansetron placebo x 1 intravenous on Day 1
Experimental: Rolapitant Dose 3 Drug: Rolapitant Dose 3
Rolapitant 70 mg (4 capsules) x 1 oral and ondansetron placebo x 1 intravenous on Day 1
Experimental: Rolapitant Dose 4 Drug: Rolapitant Dose 4
200 mg (4 capsules) x 1 oral and ondansetron placebo x 1 intravenous on Day 1
Active Comparator: Ondansetron Drug: Ondansetron
Ondansetron 4 mg x 1 intravenous and rolapitant placebo (4 capsules) x 1 oral on Day 1
Placebo Comparator: Placebo Drug: Placebo
Rolapitant placebo (4 capsules) x 1 oral and ondansetron placebo x 1 intravenous on Day 1


Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Women aged 18 years or older of any race with an American Society of Anesthesiologists (ASA) physical status of I to III who are scheduled to undergo elective open abdominal surgery under general anesthesia.
  • Women whose postoperative hospitalization is expected to last at least 24 hours
  • Women expected to require postoperative intravenous opioid PCA.
  • Women whose surgery is expected to require at least 1 hour, but not more than 4 hours, of general anesthesia using the regimen defined in this protocol.
  • Women of childbearing potential who have a negative pregnancy test or women who have been surgically sterilized or are postmenopausal.

Exclusion Criteria:

  • Women with clinically significant or unstable cardiac, respiratory, hepatic, renal, or other major organ system disease.
  • Women with a known hypersensitivity to ondansetron (or any other 5-HT3 antagonist), to any agent that is part of the anesthesia regimen, or to other medications to be administered under this protocol.
  • Women who are scheduled to undergo certain types of surgery.
  • Women who are breastfeeding.
  • Women who have retching/vomiting or moderate or severe nausea in the 24 hours prior to surgery or suffer from chronic nausea and/or vomiting.
  • Women with a body mass index (BMI) >40.
  • Women who have participated in a clinical trial of an investigational drug within 30 days prior to drug administration.
  Contacts and Locations
No Contacts or Locations Provided
  More Information

Responsible Party: Merck Sharp & Dohme Corp.
ClinicalTrials.gov Identifier: NCT00539721     History of Changes
Other Study ID Numbers: P04937
First Submitted: October 2, 2007
First Posted: October 4, 2007
Last Update Posted: November 1, 2013
Last Verified: October 2013

Keywords provided by Merck Sharp & Dohme Corp.:

Additional relevant MeSH terms:
Postoperative Nausea and Vomiting
Signs and Symptoms, Digestive
Signs and Symptoms
Postoperative Complications
Pathologic Processes
Autonomic Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Gastrointestinal Agents
Dermatologic Agents
Serotonin Antagonists
Serotonin Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Antipsychotic Agents
Tranquilizing Agents
Central Nervous System Depressants
Psychotropic Drugs
Anti-Anxiety Agents
Neurokinin-1 Receptor Antagonists