Active clinical trials for "Nausea"

BACKGROUND: Palonosetron is a second generation serotonin antagonist usually used in a fixed dose of 75 mcg for the prophylaxis of postoperative nausea and vomiting. Although there are a few trials evaluating bodyweight-adjusted doses of palonosetron, the ideal dose for obese patients has not yet been investigated. The aim of this study is to evaluate if the use of bodyweight-adjusted doses of palonosetron (1mcg / kg) is more effective than a fixed dose (75mcg) on preventing postoperative nausea and vomiting in female patients with a body mass index equal to or above 30 kg /m2 whom have undergone breast surgery METHODS: A prospective, randomized double-blind trial will be conducted at the National Cancer Institute (INCA - HCIII), in Rio de Janeiro, Brazil. Eligible patients are female aged between 18-70 years of age with an ASA physical status of one to three, with body mass index equal to or greater than 30 kg / m2, scheduled to undergo elective breast surgery. Forty patients will be randomized to receive a fix dose of 75 μg of palonosetron (group I - GI) and 40 patients will receive a bodyweight-adjusted dose of 1mcg/kg of palonosetron (group II - GII). Patients will be assessed over 3 time periods: 0-6 h, 6-26 h and 24-48 h after surgery. After discharge, all patients will be contacted by telephone at regular intervals to record the episodes of nausea and vomiting as well as analgesic and antiemetic requirements. The primary outcome measure will include the number of emetic episodes, the incidence of nausea, the need for rescue antiemetics and the analgesic requirement over 48h. The secondary outcome will be to evaluate the frequency of polymorphism of the 5-HT3 receptors and their correlation with the antiemetic effect and adverse effects.

Opioid-based intravenous patient-controlled analgesia (IV-PCA) offers excellent pain control, however, its use inevitably increases the incidence of postoperative nausea and vomiting (PONV). Ramosetron and palonosetron are commonly used 5-HT3 antagonists for the prevention and treatment of PONV. It is not clear which one has superior antiemetic efficacy for the prevention of PONV in patients using opioid-based IV-PCA. The antiemetic efficacy of 5HT3 antagonists may be influenced by polymorphism of ABCB1, a drug-transporter gene. This study evaluates relative antiemetic efficacy of ramosetron and palonosetron in patients using IV-PCA after spinal surgery and impact of ABCB1 polymorphism on the antiemetic efficacy of the ramosetron and palonosetron. The incidence and intensity of PONV during postoperative 48 h will be assessed. ABCB1 polymorphisms 3435C>T and 2677G>T/A will be evaluated in all patients.

Hydroxyzine is one of antihistamines that antagonizes H1 receptor, and it's effects are reducing pruritus, nausea/vomiting, and the mild effect of sedation.With these effects Hydroxyzine should be used in the prevention of these symptoms.

The purpose of this study is: To compare prophylactic effect of ondansetron versus ramosetron on radiotherapy induced nausea and vomiting in the treatment of gastrointestinal cancer. To verify an improvement of 20% in complete response rate in term of radiotherapy induced nausea and vomiting (from 60% with ondansetron to 80% with ramosetron).

To assess the efficacy and safety of different doses of APD405 in the prevention of post-operative nausea and vomiting (PONV) in adult patients at moderate to high-risk of PONV. Patients must be undergoing elective surgery under general anaesthesia (hysterectomy (any surgical technique), cholecystectomy (any surgical technique) or "other" elective surgery scheduled to last at least one hour from induction of anaesthesia), requiring at least one overnight stay in hospital, and have at least 2 of the following risk factors for PONV: Past history of PONV and/or motion sickness; Non-smoking status; Female gender; Planned opiate use for post-operative analgesia.

The purpose of this trial is to study the effects of different combinations of antiemetics on the incidence of late onset postoperative nausea and vomiting.

The purpose of this study is to evaluate the efficacy and safety of single IV doses of Onicit® (Palonosetron) 0.25 mg in the prevention of acute and delayed nausea and vomiting associated with moderate and highly emetogenic chemotherapy.

This study evaluates whether the implementation of a prediction rule for postoperative nausea and vomiting changes physician behaviour, improves patient outcome and improves cost-effectiveness of treatment of postoperative nausea and vomiting.

The purpose of this study is to determine the minimum effective bolus dose of phenylephrine to prevent post-spinal hypotension in Cesarean section in 95 % of our patients. An adequate response will be defined as the absence of hypotension or nausea/vomiting during the period from induction of spinal anesthesia to uterine incision prior to fetal delivery.

The purpose of this study is to assess the safety and efficacy of 2 doses of an approved drug for a new indication in the prevention of postoperative nausea and vomiting in patients receiving general anesthesia for open abdominal surgery requiring overnight hospital stay.