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Comparison of Rocuronium and Org 25969 With Cisatracurium and Neostigmine (19.4.310)(P05931)

This study has been completed.
Information provided by (Responsible Party):
Merck Sharp & Dohme Corp. Identifier:
First received: March 22, 2007
Last updated: May 13, 2016
Last verified: May 2016
The purpose of this study was to demonstrate in adult patients a faster recovery from a neuromuscular block with 2.0 mg/kg Org 25969 (sugammadex) after rocuronium as compared to 50 ug/kg neostigmine after cisatracurium when administered at reappearance of T2

Condition Intervention Phase
Anesthesia, General
Drug: Sugammadex
Drug: neostigmine
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Comparison of Rocuronium and Org25969 With Cisatracurium and Neostigmine When Neuromuscular Block is Reversed at Reappearance of T2

Resource links provided by NLM:

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

Primary Outcome Measures:
  • Time from start administration of Org 25969/neostigmine to recovery T4/T1 ratio to 0.9 [ Time Frame: After surgery ]

Secondary Outcome Measures:
  • Time from start administration of Org 25969/neostigmine to recovery T4/T1 ratio to 0.7 and 0.8 [ Time Frame: After surgery ]
  • Assessment of clinical signs of recovery (level of consciousness, 5 sec head lift, and general muscle weakness) [ Time Frame: after surgery ]

Enrollment: 84
Study Start Date: November 2005
Study Completion Date: August 2006
Primary Completion Date: May 2006 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Sugammadex
2.0 mg/kg Org 25969 (sugammadex)
Drug: Sugammadex
Subjects received a bolus dose of 0.6 mg/kg rocuronium. After the last dose of rocuronium, at reappearance of T2, a dose of 2.0 mg/kg Org 25969 was to be administered
Other Name: Org 25969
Active Comparator: Neostigmine
50 ug/kg neostigmine
Drug: neostigmine
Subjects received a bolus dose of 0.15 mg/kg cisatracurium. After the last dose of cisatracurium, at reappearance of T2, a dose of 50 ug/kg neostigmine was to be administered. In accordance to the labeling of neostigmine, a maximum of 5 mg neostigmine was to be administered
Other Name: premix neostigmine/glycopyrrolate


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

Inclusion Criteria:

  • Subjects of ASA 1 - 4;
  • Subjects above or equal to the age of 18;
  • Scheduled for surgical procedures with a general anesthesia requiring neuromuscular relaxation with the use of rocuronium or cisatracurium;
  • Scheduled for surgical procedures in supine position;
  • Given written informed consent.

Exclusion Criteria:

  • Subjects in whom a difficult intubation because of anatomical malformations was expected;
  • Subjects known or suspected to have neuromuscular disorders impairing neuromuscular block (NMB) and/or significant renal dysfunction;
  • Subjects known or suspected to have a (family) history of malignant hyperthermia;
  • Subjects known or suspected to have an allergy to narcotics, muscle relaxants or other medication used during general anesthesia;
  • Subjects receiving medication in a dose and/or at a time point known to interfere with neuromuscular blocking agents such as antibiotics, anticonvulsants and Mg2+;
  • Subjects in whom the use of neostigmine and/or glycopyrrolate may be contraindicated;
  • Subjects who had already participated in an Org25969 trial;
  • Subjects who had participated in another clinical trial (not pre-approved by NV Organon) within 30 days of entering into CT 19.4.310.
  • Female subjects who are pregnant:
  • Female subjects of childbearing potential not using any method of birth control: condom or using only hormonal contraception as birth control;
  • Female subjects who were breast -feeding.
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Additional Information:
Responsible Party: Merck Sharp & Dohme Corp. Identifier: NCT00451100     History of Changes
Other Study ID Numbers: P05931
Crystal Trial
Study First Received: March 22, 2007
Last Updated: May 13, 2016

Additional relevant MeSH terms:
Neuromuscular Nondepolarizing Agents
Neuromuscular Blocking Agents
Neuromuscular Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Adjuvants, Anesthesia
Muscarinic Antagonists
Cholinergic Antagonists
Cholinergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Nicotinic Antagonists
Cholinesterase Inhibitors
Enzyme Inhibitors
Autonomic Agents processed this record on March 24, 2017