Neuromuscular Block Clinical Trial
— MagSugOfficial title:
Efficacy of Sugammadex for the Reversal of Moderate and Deep Rocuronium Induced Neuromuscular Block in Patients Pretreated With Magnesium Sulphate
Verified date | July 2012 |
Source | University Hospital, Geneva |
Contact | n/a |
Is FDA regulated | No |
Health authority | Switzerland: Swissmedic |
Study type | Interventional |
Sugammadex is a new reversal agent for neuromuscular blockers (curare). It encapsulates the curare molecule and terminates immediately its action. The recommended dose is 2 mg/kg for a slight neuromuscular block and 4 mg/kg for a profound neuromuscular block. Magnesium sulphate is frequently used in perioperative medicine and it is known to reinforce the neuromuscular block induced for instance by rocuronium. The researchers want to investigate, whether higher doses of sugammadex must be given to antagonize the neuromuscular block induced by rocuronium in patients who received magnesium sulphate.
Status | Completed |
Enrollment | 32 |
Est. completion date | June 2012 |
Est. primary completion date | June 2012 |
Accepts healthy volunteers | No |
Gender | Male |
Age group | 18 Years to 60 Years |
Eligibility |
Inclusion Criteria: - Age =18 to 60 years, male. - American Society of Anesthesiology [ASA] status I or II. - Able to read and understand the information sheet and to sign and date the consent form. - Scheduled for elective surgery lasting at least 60 minutes under general anaesthesia requiring neuromuscular relaxation using rocuronium bromide for endotracheal intubation. Exclusion Criteria: - A history of allergy or hypersensitivity to rocuronium, sugammadex or magnesium - Neuromuscular disease. - Preoperative medications known to influence neuromuscular function (for instance, certain antibiotics [aminoglycosides] and anticonvulsants [phenytoine]). - Electrolyte abnormalities (for instance, hypermagnaesemia). - Hepatic dysfunction (i.e bilirubin <1.5 upper limit normal (ULN), alanine aminotransferase (ALT) <2.5 x ULN, aspartate aminotransferase (AST) <2.5 x ULN) - Renal insufficiency (i.e. Creatinine <1.5 x ULN, creatinine clearance <30ml/minute). - Atrioventricular heart block - Patients with magnesium treatment - Patients with a body mass index <19 or >28 kg m-2. - Pregnant, or intending to become pregnant, women. - Breastfeeding women. - Expected difficult intubation or mask ventilation. - Patient having participated in any clinical trial within 30 days, inclusive, of signing the informed consent form of the current trial. - Patients needing continuous or repeat rocuronium administration for surgical reasons. |
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
Switzerland | University Hospitals of Geneva | Geneva |
Lead Sponsor | Collaborator |
---|---|
University Hospital, Geneva |
Switzerland,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Time from start administration of sugammadex to recovery T4/T1 ratio to 0.9 | Neuromuscular function will be assessed by acceleromyography of the adductor pollicis with a TOF-Watch SX® monitor (Organon Oss, The Netherlands). After induction of anesthesia and loss of consciousness, the acceleromyograph will be calibrated using the implemented TOF-Watch SX® calibration mode 2. Train-of-four (TOF) stimulation will be used (supramaximal square wave impulse of 200 µs duration, four stimuli at two Hz, 15 seconds interval). The units of measurement are seconds and minutes. Measurement will be continued until a TOF ration of 1.0 is reached. | Participants will be followed for the duration of hospital stay, an expected average of 2 days | No |
Secondary | Time from start administration of sugammadex to recovery T4/T1 ratio to 0.7 | Neuromuscular function will be assessed by acceleromyography of the adductor pollicis with a TOF-Watch SX® monitor (Organon Oss, The Netherlands). After induction of anesthesia and loss of consciousness, the acceleromyograph will be calibrated using the implemented TOF-Watch SX® calibration mode 2. Train-of-four (TOF) stimulation will be used (supramaximal square wave impulse of 200 µs duration, four stimuli at two Hz, 15 seconds interval). The units of measurement are seconds and minutes. Measurement will be continued until a TOF ration of 1.0 is reached. | Participants will be followed for the duration of hospital stay, an expected average of 2 days | No |
Secondary | Time from start administration of sugammadex to recovery T4/T1 ratio to 0.8. | Neuromuscular function will be assessed by acceleromyography of the adductor pollicis with a TOF-Watch SX® monitor (Organon Oss, The Netherlands). After induction of anesthesia and loss of consciousness, the acceleromyograph will be calibrated using the implemented TOF-Watch SX® calibration mode 2. Train-of-four (TOF) stimulation will be used (supramaximal square wave impulse of 200 µs duration, four stimuli at two Hz, 15 seconds interval). The units of measurement are seconds and minutes. Measurement will be continued until a TOF ration of 1.0 is reached. | SParticipants will be followed for the duration of hospital stay, an expected average of 2 days | No |
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