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Efficacy and Safety of Sugammadex Dosed According to Actual Body Weight (ABW) or Ideal Body Weight (IBW) in Reversal of Neuromuscular Blockade (NMB) in Morbidly Obese Participants (MK-8616-146)

Primary Purpose

Neuromuscular Blockade

Status
Completed
Phase
Phase 4
Locations
International
Study Type
Interventional
Intervention
Sugammadex 2 mg/kg ABW
Sugammadex 2 mg/kg IBW
Sugammadex 4 mg/kg ABW
Sugammadex 4 mg/kg IBW
Neostigmine + Glycopyrrolate
Rocuronium or Vecuronium
Sponsored by
Merck Sharp & Dohme LLC
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Neuromuscular Blockade

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Have BMI ≥40 kg/m² (morbidly obese).
  • Be categorized as American Society of Anesthesiologists (ASA) Physical Status Class 3
  • Have a planned surgical procedure that requires neuromuscular block with either rocuronium or vecuronium.
  • Have a planned surgical procedure (e.g., gastrointestinal, urologic, or laparoscopic procedures) that in the opinion of the investigator does not preclude maintenance of moderate or deep depth of NMB throughout the case (maintained by re-dosing or continuous infusion).
  • Have a planned surgical procedure that would allow objective neuromuscular monitoring techniques to be applied with access to the arm for neuromuscular transmission monitoring.
  • If female, who is not of reproductive potential, be one of the following: 1) postmenopausal (defined as at least 12 months with no menses in women ≥45 years of age; 2) has had a hysterectomy and/or bilateral oophorectomy, bilateral salpingectomy, or bilateral tubal ligation/occlusion at least 6 weeks prior to screening; 3) has a congenital or acquired condition that prevents childbearing; or 4) is undergoing surgical sterilization as the planned surgical procedure associated with participation in this study (e.g., hysterectomy or tubal ligation).
  • If female, who is sexually active and of child-bearing potential, agrees to use a medically accepted method of contraception through seven days after receiving protocol-specified medication. Please note the following: 1) Medically accepted methods of contraception include condoms (male or female) with a spermicidal agent, diaphragm or cervical cap with spermicide, medically prescribed intrauterine device (IUD), inert or copper-containing IUD, surgical sterilization (e.g., hysterectomy or tubal ligation); 2) Abstinence (relative to heterosexual activity) can be used as the sole method of contraception if it is consistently employed as the subject's preferred and usual lifestyle and if considered acceptable by local regulatory agencies and Human Subjects Protection Review Boards; 3 Periodic abstinence (e.g., calendar, ovulation, sympto-thermal, post-ovulation methods, etc.) and withdrawal are not acceptable methods of contraception; 4) If a contraceptive method listed above is restricted by local regulations/guidelines, then it does not qualify as an acceptable method of contraception for subjects participating at sites in this country/region.
  • Be able to provide (or the subject's legally authorized representative in accordance with local requirements), written informed consent for the trial. The participant or legally authorized representative may also provide consent for Future Biomedical Research.

Exclusion Criteria:

  • Have an actual body weight <100 kg.
  • Have a pacemaker or automatic implantable cardioverter-defibrillator that precludes the assessment of bradycardia or arrhythmias.
  • Have a medical condition or surgical procedure that precludes reversal of neuromuscular block at the end of surgery.
  • Have neuromuscular disorder(s) that may affect neuromuscular block and/or trial assessments.
  • Are dialysis-dependent or have severe renal insufficiency (defined as estimated creatinine clearance of <30 mL/min.).
  • Have or are suspected of having a personal history or family history (parents, grandparents, or siblings) of malignant hyperthermia.
  • Have or are suspected of having an allergy (e.g., hypersensitivity and/or anaphylactic reaction) to study treatments or its/their excipients, to opioids/opiates, muscle relaxants or their excipients, or other medication(s) used during general anesthesia.
  • Have received or are planning to receive toremifene within 24 hours before or within 24 hours after study medication administration.
  • Have any condition that would contraindicate the administration of study medication.
  • Are currently pregnant, attempting to become pregnant, or lactating.
  • Have any clinically significant condition or situation (e.g., anatomical malformation that complicates intubation) other than the condition being studied that, in the opinion of the investigator, would interfere with the trial evaluations or optimal participation in the trial.
  • Are currently participating in or has participated in an interventional clinical trial with an investigational compound (including any other current or ongoing trial with a Sugammadex treatment arm) or device within 30 days of signing the informed consent form of this current trial.

Sites / Locations

  • University California / Davis ( Site 2001)
  • Jackson Memorial Hospital/University of Miami ( Site 2007)
  • University of Kansas Medical Center ( Site 2049)
  • William Beaumont Hospital - Royal Oak ( Site 2033)
  • University Hospital- Columbia MO ( Site 2060)
  • Robert Wood Johnson University Hospital ( Site 2037)
  • Mission Hospital - St. Joseph ( Site 2015)
  • Cleveland Clinic Foundation ( Site 2031)
  • Temple University Hospital ( Site 2004)
  • Vanderbilt University Medical Center ( Site 2032)
  • Hermann Drive Surgical Center ( Site 2020)
  • Hermann Drive Surgical Center ( Site 2059)
  • Zablocki VA Medical Center ( Site 2011)
  • Sozialmedizinisches Zentrum Ost - Donauspital ( Site 2150)
  • Universitaire Ziekenhuis Antwerpen - UZA ( Site 2200)
  • Bispebjerg og Frederiksberg Hospital ( Site 2250)
  • Rigshospitalet ( Site 2253)
  • Johanniter Krankenhaus Bonn ( Site 2353)
  • Diakovere Annastift gGmbH ( Site 2355)
  • Universitatsklinikum Giessen und Marburg GmbH ( Site 2356)
  • Klinikum Rechts der Isar Technische Universitaet Muenchen ( Site 2350)
  • St. Franziskus-Hospital ( Site 2354)
  • Klinikum am Steinenberg Reutlingen ( Site 2352)
  • Josephs-Hospitals Warendorf ( Site 2351)

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm Type

Experimental

Experimental

Experimental

Experimental

Active Comparator

Arm Label

Sugammadex 2 mg/kg ABW

Sugammadex 2 mg/kg IBW

Sugammadex 4 mg/kg ABW

Sugammadex 4 mg/kg IBW

Neostigmine/Glycopyrrolate

Arm Description

Following administration of NMBA, participants received a single intravenous (i.v.) bolus of Sugammadex at 2 mg/kg as determined utilizing participant ABW. A treatment dose of 2 mg/kg was used for reversal of moderate NMB.

Following administration of NMBA, participants received a single i.v. bolus of Sugammadex at 2 mg/kg as determined utilizing participant IBW. A treatment dose of 2 mg/kg was used for reversal of moderate NMB.

Following administration of NMBA, participants received a single i.v. bolus of Sugammadex at 4 mg/kg as determined utilizing participant ABW. A treatment dose of 4 mg/kg was used for reversal of deep NMB.

Following administration of NMBA, participants received a single i.v. bolus of Sugammadex at 4 mg/kg as determined utilizing participant IBW. A treatment dose of 4 mg/kg was used for reversal of deep NMB.

Following administration of NMBA, participants received a single i.v. bolus containing both Neostigmine (50 µg/kg; up to 5 mg maximum dose) and Glycopyrrolate (10 µg/kg; up to 1 mg maximum dose) as determined utilizing participant ABW. Neostigmine/Glycopyrrolate was used for reversal of moderate NMB. Active comparator treatment for reversal for deep NMB was not available.

Outcomes

Primary Outcome Measures

Time to Recovery (TTR) of Participant Train Of Four (TOF) Ratio to ≥0.9: Primary Kaplan-Meier Analysis
The primary efficacy analysis of TTR of TOF ratio to ≥0.9 was performed by estimating event rates within each treatment group using the Kaplan-Meier method. TTR was monitored by applying electrical stimulations to the ulnar nerve every 15 seconds and assessing twitch response at the adductor pollicis muscle. T1 and T4 refer to magnitudes of the first and fourth twitches respectively, after nerve stimulation. The T4/T1 ratio (TOF; expressed as a decimal of up to 1.0) indicates the extent of recovery from NMB. A faster TTR of the TOF ratio to 0.9 indicates faster recovery from NMB. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Percentage of Participants With Treatment-Emergent Sinus Bradycardia Events
The percentage of participants experiencing treatment-emergent bradycardia events were identified with continuous electrocardiogram (ECG) monitoring. Treatment-emergent sinus bradycardia is defined as a heart rate <60 bpm that has also decreased more than 20% compared to participant baseline heart rate value, sustained for at least 1 minute after administration of study intervention. Treatment-emergent sinus bradycardia events may or may not be considered an adverse event (AE), as determined by investigator judgment. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Percentage of Participants With Treatment-Emergent Sinus Tachycardia Events
The percentage of participants experiencing treatment-emergent sinus tachycardia events were identified with continuous ECG monitoring. Treatment-emergent sinus tachycardia is defined as a heart rate ≥100 bpm that has also increased more than 20% compared to participant baseline heart rate value, sustained for at least 1 minute after administration of study intervention. Treatment-emergent sinus tachycardia events may or may not be considered an AE, as determined by investigator judgment. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Percentage of Participants With Other Treatment-Emergent Cardiac Arrhythmia Events
The percentage of participants experiencing other treatment-emergent cardiac arrhythmia events were identified with continuous ECG monitoring. Other treatment-emergent cardiac arrhythmias are defined as new or worsening arrhythmias (e.g., atrial fibrillation, atrial tachyarrhythmia, ventricular fibrillation, or ventricular tachyarrhythmia), sustained for at least 1 minute after administration of study intervention. Worsening arrhythmia events may or may not be considered an AE, as determined by investigator judgment. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Percentage of Participants Experiencing an Adverse Event (AE) After Administration of Study Intervention
The percentage of participants experiencing an AE following administration of study intervention was monitored. An AE is any unfavorable and unintended medical occurrence, symptom, or disease witnessed in a participant, regardless of whether or not a causal relationship with the study treatment can be demonstrated. Further, any worsening (i.e. any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of the study treatment is also considered an AE. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Percentage of Participants Experiencing a Serious Adverse Event (SAE) After Administration of Study Intervention
The percentage of participants experiencing an SAE following administration of study intervention was monitored. An SAE is an adverse event that: results in death; is life threatening; results in persistent or significant disability or incapacity; results in or prolongs a hospitalization; is a congenital anomaly or birth defect; is a cancer; or may jeopardize the participant, potentially requiring medical or surgical intervention. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Percentage of Participants Experiencing an Event of Clinical Interest (ECI) After Administration of Study Intervention
The percentage of participants experiencing an ECI following administration of study intervention was monitored. ECIs are a discrete set of both AEs and SAEs, specifically designated as such for the trial. For the purposes of this investigation, ECIs included 1) drug-induced liver injury; 2) clinically-relevant arrhythmias, inclusive of bradycardia and tachycardia defined as events necessitating intervention, as determined by investigator judgment; and 3) instances of hypersensitivity and/or anaphylaxis adjudicated by an external expert Adjudication Committee. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).

Secondary Outcome Measures

Percentage of Participants With Prolonged (>10 Minutes) Time to Recovery (TTR) of the Train Of Four (TOF) Ratio to ≥0.9
Following administration of study intervention, the percentage of participants experiencing prolonged (>10 minutes) recovery to a TOF ratio ≥0.9 was calculated. TTR was monitored by applying electrical stimulations to the ulnar nerve every 15 seconds and assessing twitch response at the adductor pollicis muscle. T1 and T4 refer to magnitudes of the first and fourth twitches respectively, after nerve stimulation. The T4/T1 ratio (TOF; expressed as a decimal of up to 1.0) indicates the extent of recovery from NMB. A faster TTR of the TOF ratio to 0.9 indicates faster recovery from NMB. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Time to Recovery (TTR) of Participant Train of Four (TOF) Ratio to ≥0.9: Secondary Geometric Mean Analysis
The secondary efficacy analysis of TTR of participant TOF ratio to ≥0.9 was performed by estimating the geometric mean of TTR within each treatment group. TTR was monitored by applying electrical stimulations to the ulnar nerve every 15 seconds and assessing twitch response at the adductor pollicis muscle. T1 and T4 refer to magnitudes of the first and fourth twitches respectively, after nerve stimulation. The T4/T1 ratio (TOF; expressed as a decimal of up to 1.0) indicates the extent of recovery from NMB. A faster TTR of the TOF ratio to 0.9 indicates faster recovery from NMB. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Time to Recovery (TTR) of Participant Train of Four (TOF) Ratio to ≥0.8: Geometric Mean Analysis
The efficacy analysis of TTR of participant TOF ratio to ≥0.8 was performed by estimating the geometric mean of TTR within each treatment group. TTR was monitored by applying electrical stimulations to the ulnar nerve every 15 seconds and assessing twitch response at the adductor pollicis muscle. T1 and T4 refer to magnitudes of the first and fourth twitches respectively, after nerve stimulation. The T4/T1 ratio (TOF; expressed as a decimal of up to 1.0) indicates the extent of recovery from NMB. A faster TTR of the TOF ratio to 0.8 indicates faster recovery from NMB. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Time to Recovery (TTR) of Participant Train of Four (TOF) Ratio to ≥0.7: Geometric Mean Analysis
The efficacy analysis of TTR of participant TOF ratio to ≥0.7 was performed by estimating the geometric mean of TTR within each treatment group. TTR was monitored by applying electrical stimulations to the ulnar nerve every 15 seconds and assessing twitch response at the adductor pollicis muscle. T1 and T4 refer to magnitudes of the first and fourth twitches respectively, after nerve stimulation. The T4/T1 ratio (TOF; expressed as a decimal of up to 1.0) indicates the extent of recovery from NMB. A faster TTR of the TOF ratio to 0.7 indicates faster recovery from NMB. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).

Full Information

First Posted
November 15, 2017
Last Updated
January 12, 2021
Sponsor
Merck Sharp & Dohme LLC
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1. Study Identification

Unique Protocol Identification Number
NCT03346070
Brief Title
Efficacy and Safety of Sugammadex Dosed According to Actual Body Weight (ABW) or Ideal Body Weight (IBW) in Reversal of Neuromuscular Blockade (NMB) in Morbidly Obese Participants (MK-8616-146)
Official Title
A Phase 4 Randomized, Active-Comparator Controlled Trial to Study the Efficacy and Safety of Sugammadex (MK-8616) for the Reversal of Neuromuscular Blockade Induced by Either Rocuronium Bromide or Vecuronium Bromide in Morbidly Obese Subjects
Study Type
Interventional

2. Study Status

Record Verification Date
January 2021
Overall Recruitment Status
Completed
Study Start Date
January 1, 2018 (Actual)
Primary Completion Date
January 29, 2019 (Actual)
Study Completion Date
January 29, 2019 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Merck Sharp & Dohme LLC

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
No

5. Study Description

Brief Summary
The purpose of this trial is to evaluate the safety and efficacy of Sugammadex when administered according to actual body weight (ABW) as compared to ideal body weight (IBW) for the reversal of both moderate and deep neuromuscular blockade (NMB) induced by either Rocuronium or Vecuronium in morbidly obese participants. The primary hypothesis of this investigation is that, compared to obese participants dosed based on IBW, obese participants receiving Sugammadex according to ABW will demonstrate a faster time to recovery to a Train Of Four (TOF) ratio of ≥0.9 (i.e. faster NMB reversal), pooled across NMB depth and type of neuromuscular blocking agent (NMBA; Rocuronium or Vecuronium) administered.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Neuromuscular Blockade

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 4
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
207 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Sugammadex 2 mg/kg ABW
Arm Type
Experimental
Arm Description
Following administration of NMBA, participants received a single intravenous (i.v.) bolus of Sugammadex at 2 mg/kg as determined utilizing participant ABW. A treatment dose of 2 mg/kg was used for reversal of moderate NMB.
Arm Title
Sugammadex 2 mg/kg IBW
Arm Type
Experimental
Arm Description
Following administration of NMBA, participants received a single i.v. bolus of Sugammadex at 2 mg/kg as determined utilizing participant IBW. A treatment dose of 2 mg/kg was used for reversal of moderate NMB.
Arm Title
Sugammadex 4 mg/kg ABW
Arm Type
Experimental
Arm Description
Following administration of NMBA, participants received a single i.v. bolus of Sugammadex at 4 mg/kg as determined utilizing participant ABW. A treatment dose of 4 mg/kg was used for reversal of deep NMB.
Arm Title
Sugammadex 4 mg/kg IBW
Arm Type
Experimental
Arm Description
Following administration of NMBA, participants received a single i.v. bolus of Sugammadex at 4 mg/kg as determined utilizing participant IBW. A treatment dose of 4 mg/kg was used for reversal of deep NMB.
Arm Title
Neostigmine/Glycopyrrolate
Arm Type
Active Comparator
Arm Description
Following administration of NMBA, participants received a single i.v. bolus containing both Neostigmine (50 µg/kg; up to 5 mg maximum dose) and Glycopyrrolate (10 µg/kg; up to 1 mg maximum dose) as determined utilizing participant ABW. Neostigmine/Glycopyrrolate was used for reversal of moderate NMB. Active comparator treatment for reversal for deep NMB was not available.
Intervention Type
Drug
Intervention Name(s)
Sugammadex 2 mg/kg ABW
Other Intervention Name(s)
MK-8616
Intervention Description
Following administration of NMBA (Rocuronium or Vecuronium) to achieve moderate NMB, participants received a single i.v. bolus of Sugammadex (2 mg/kg by ABW) for reversal of moderate NMB. Moderate NMB is defined as the reappearance of a second twitch (T2) in response to TOF stimulations.
Intervention Type
Drug
Intervention Name(s)
Sugammadex 2 mg/kg IBW
Other Intervention Name(s)
MK-8616
Intervention Description
Following administration of NMBA (Rocuronium or Vecuronium) to achieve moderate NMB, participants received a single i.v. bolus of Sugammadex (2 mg/kg by IBW) for reversal of moderate NMB. Moderate NMB is defined as the reappearance of T2 in response to TOF stimulations.
Intervention Type
Drug
Intervention Name(s)
Sugammadex 4 mg/kg ABW
Other Intervention Name(s)
MK-8616
Intervention Description
Following administration of NMBA (Rocuronium or Vecuronium) to achieve deep NMB, participants received a single i.v. bolus of Sugammadex (4 mg/kg by ABW) for reversal of deep NMB. Deep NMB is defined as no response to TOF stimulations (TOF=0) and a detection target of 1-2 post-tetanic counts (PTCs).
Intervention Type
Drug
Intervention Name(s)
Sugammadex 4 mg/kg IBW
Other Intervention Name(s)
MK-8616
Intervention Description
Following administration of NMBA (Rocuronium or Vecuronium) to achieve deep NMB, participants will receive a single i.v. bolus of Sugammadex (4 mg/kg by IBW) for reversal of deep NMB. Deep NMB is defined as no response to TOF stimulations (TOF=0) and a detection target of 1-2 post-tetanic counts (PTCs).
Intervention Type
Drug
Intervention Name(s)
Neostigmine + Glycopyrrolate
Intervention Description
Following administration of NMBA (Rocuronium or Vecuronium) to achieve moderate NMB, participants received a single i.v. bolus of Neostigmine (50 µg/kg; 5 mg maximum) and Glycopyrrolate (10 µg/kg; 1 mg maximum), dosed according to participant ABW for reversal of moderate NMB. Moderate NMB is defined as the reappearance of T2 in response to TOF stimulations.
Intervention Type
Drug
Intervention Name(s)
Rocuronium or Vecuronium
Intervention Description
To achieve NMB, participants received steroidal NMBA Rocuronium Bromide or Vecuronium Bromide administered via i.v. infusion and dosed according to participant ABW. NMBAs were concomitant medications used per label as adjunct to general anesthesia.
Primary Outcome Measure Information:
Title
Time to Recovery (TTR) of Participant Train Of Four (TOF) Ratio to ≥0.9: Primary Kaplan-Meier Analysis
Description
The primary efficacy analysis of TTR of TOF ratio to ≥0.9 was performed by estimating event rates within each treatment group using the Kaplan-Meier method. TTR was monitored by applying electrical stimulations to the ulnar nerve every 15 seconds and assessing twitch response at the adductor pollicis muscle. T1 and T4 refer to magnitudes of the first and fourth twitches respectively, after nerve stimulation. The T4/T1 ratio (TOF; expressed as a decimal of up to 1.0) indicates the extent of recovery from NMB. A faster TTR of the TOF ratio to 0.9 indicates faster recovery from NMB. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Time Frame
Up to 76 minutes
Title
Percentage of Participants With Treatment-Emergent Sinus Bradycardia Events
Description
The percentage of participants experiencing treatment-emergent bradycardia events were identified with continuous electrocardiogram (ECG) monitoring. Treatment-emergent sinus bradycardia is defined as a heart rate <60 bpm that has also decreased more than 20% compared to participant baseline heart rate value, sustained for at least 1 minute after administration of study intervention. Treatment-emergent sinus bradycardia events may or may not be considered an adverse event (AE), as determined by investigator judgment. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Time Frame
Up to 35 minutes
Title
Percentage of Participants With Treatment-Emergent Sinus Tachycardia Events
Description
The percentage of participants experiencing treatment-emergent sinus tachycardia events were identified with continuous ECG monitoring. Treatment-emergent sinus tachycardia is defined as a heart rate ≥100 bpm that has also increased more than 20% compared to participant baseline heart rate value, sustained for at least 1 minute after administration of study intervention. Treatment-emergent sinus tachycardia events may or may not be considered an AE, as determined by investigator judgment. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Time Frame
Up to 35 minutes
Title
Percentage of Participants With Other Treatment-Emergent Cardiac Arrhythmia Events
Description
The percentage of participants experiencing other treatment-emergent cardiac arrhythmia events were identified with continuous ECG monitoring. Other treatment-emergent cardiac arrhythmias are defined as new or worsening arrhythmias (e.g., atrial fibrillation, atrial tachyarrhythmia, ventricular fibrillation, or ventricular tachyarrhythmia), sustained for at least 1 minute after administration of study intervention. Worsening arrhythmia events may or may not be considered an AE, as determined by investigator judgment. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Time Frame
Up to 35 minutes
Title
Percentage of Participants Experiencing an Adverse Event (AE) After Administration of Study Intervention
Description
The percentage of participants experiencing an AE following administration of study intervention was monitored. An AE is any unfavorable and unintended medical occurrence, symptom, or disease witnessed in a participant, regardless of whether or not a causal relationship with the study treatment can be demonstrated. Further, any worsening (i.e. any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of the study treatment is also considered an AE. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Time Frame
Up to 7 days
Title
Percentage of Participants Experiencing a Serious Adverse Event (SAE) After Administration of Study Intervention
Description
The percentage of participants experiencing an SAE following administration of study intervention was monitored. An SAE is an adverse event that: results in death; is life threatening; results in persistent or significant disability or incapacity; results in or prolongs a hospitalization; is a congenital anomaly or birth defect; is a cancer; or may jeopardize the participant, potentially requiring medical or surgical intervention. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Time Frame
Up to 7 days
Title
Percentage of Participants Experiencing an Event of Clinical Interest (ECI) After Administration of Study Intervention
Description
The percentage of participants experiencing an ECI following administration of study intervention was monitored. ECIs are a discrete set of both AEs and SAEs, specifically designated as such for the trial. For the purposes of this investigation, ECIs included 1) drug-induced liver injury; 2) clinically-relevant arrhythmias, inclusive of bradycardia and tachycardia defined as events necessitating intervention, as determined by investigator judgment; and 3) instances of hypersensitivity and/or anaphylaxis adjudicated by an external expert Adjudication Committee. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Time Frame
Up to 7 days
Secondary Outcome Measure Information:
Title
Percentage of Participants With Prolonged (>10 Minutes) Time to Recovery (TTR) of the Train Of Four (TOF) Ratio to ≥0.9
Description
Following administration of study intervention, the percentage of participants experiencing prolonged (>10 minutes) recovery to a TOF ratio ≥0.9 was calculated. TTR was monitored by applying electrical stimulations to the ulnar nerve every 15 seconds and assessing twitch response at the adductor pollicis muscle. T1 and T4 refer to magnitudes of the first and fourth twitches respectively, after nerve stimulation. The T4/T1 ratio (TOF; expressed as a decimal of up to 1.0) indicates the extent of recovery from NMB. A faster TTR of the TOF ratio to 0.9 indicates faster recovery from NMB. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Time Frame
Up to 76 minutes
Title
Time to Recovery (TTR) of Participant Train of Four (TOF) Ratio to ≥0.9: Secondary Geometric Mean Analysis
Description
The secondary efficacy analysis of TTR of participant TOF ratio to ≥0.9 was performed by estimating the geometric mean of TTR within each treatment group. TTR was monitored by applying electrical stimulations to the ulnar nerve every 15 seconds and assessing twitch response at the adductor pollicis muscle. T1 and T4 refer to magnitudes of the first and fourth twitches respectively, after nerve stimulation. The T4/T1 ratio (TOF; expressed as a decimal of up to 1.0) indicates the extent of recovery from NMB. A faster TTR of the TOF ratio to 0.9 indicates faster recovery from NMB. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Time Frame
Up to 76 minutes
Title
Time to Recovery (TTR) of Participant Train of Four (TOF) Ratio to ≥0.8: Geometric Mean Analysis
Description
The efficacy analysis of TTR of participant TOF ratio to ≥0.8 was performed by estimating the geometric mean of TTR within each treatment group. TTR was monitored by applying electrical stimulations to the ulnar nerve every 15 seconds and assessing twitch response at the adductor pollicis muscle. T1 and T4 refer to magnitudes of the first and fourth twitches respectively, after nerve stimulation. The T4/T1 ratio (TOF; expressed as a decimal of up to 1.0) indicates the extent of recovery from NMB. A faster TTR of the TOF ratio to 0.8 indicates faster recovery from NMB. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Time Frame
Up to 69 minutes
Title
Time to Recovery (TTR) of Participant Train of Four (TOF) Ratio to ≥0.7: Geometric Mean Analysis
Description
The efficacy analysis of TTR of participant TOF ratio to ≥0.7 was performed by estimating the geometric mean of TTR within each treatment group. TTR was monitored by applying electrical stimulations to the ulnar nerve every 15 seconds and assessing twitch response at the adductor pollicis muscle. T1 and T4 refer to magnitudes of the first and fourth twitches respectively, after nerve stimulation. The T4/T1 ratio (TOF; expressed as a decimal of up to 1.0) indicates the extent of recovery from NMB. A faster TTR of the TOF ratio to 0.7 indicates faster recovery from NMB. As specified by the protocol, analyses for this outcome measure were conducted in participants pooled by dosing method across depth of NMB (Sugammadex ABW [2 mg/kg ABW plus 4 mg/kg ABW] and Sugammadex IBW [2 mg/kg IBW plus 4 mg/kg IBW]) as well as in all randomized treatment arms separated by depth of NMB (Sugammadex 2 mg/kg ABW, Sugammadex 4 mg/kg ABW, Sugammadex 2 mg/kg IBW, and Sugammadex 4 mg/kg IBW).
Time Frame
Up to 61 minutes

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Have BMI ≥40 kg/m² (morbidly obese). Be categorized as American Society of Anesthesiologists (ASA) Physical Status Class 3 Have a planned surgical procedure that requires neuromuscular block with either rocuronium or vecuronium. Have a planned surgical procedure (e.g., gastrointestinal, urologic, or laparoscopic procedures) that in the opinion of the investigator does not preclude maintenance of moderate or deep depth of NMB throughout the case (maintained by re-dosing or continuous infusion). Have a planned surgical procedure that would allow objective neuromuscular monitoring techniques to be applied with access to the arm for neuromuscular transmission monitoring. If female, who is not of reproductive potential, be one of the following: 1) postmenopausal (defined as at least 12 months with no menses in women ≥45 years of age; 2) has had a hysterectomy and/or bilateral oophorectomy, bilateral salpingectomy, or bilateral tubal ligation/occlusion at least 6 weeks prior to screening; 3) has a congenital or acquired condition that prevents childbearing; or 4) is undergoing surgical sterilization as the planned surgical procedure associated with participation in this study (e.g., hysterectomy or tubal ligation). If female, who is sexually active and of child-bearing potential, agrees to use a medically accepted method of contraception through seven days after receiving protocol-specified medication. Please note the following: 1) Medically accepted methods of contraception include condoms (male or female) with a spermicidal agent, diaphragm or cervical cap with spermicide, medically prescribed intrauterine device (IUD), inert or copper-containing IUD, surgical sterilization (e.g., hysterectomy or tubal ligation); 2) Abstinence (relative to heterosexual activity) can be used as the sole method of contraception if it is consistently employed as the subject's preferred and usual lifestyle and if considered acceptable by local regulatory agencies and Human Subjects Protection Review Boards; 3 Periodic abstinence (e.g., calendar, ovulation, sympto-thermal, post-ovulation methods, etc.) and withdrawal are not acceptable methods of contraception; 4) If a contraceptive method listed above is restricted by local regulations/guidelines, then it does not qualify as an acceptable method of contraception for subjects participating at sites in this country/region. Be able to provide (or the subject's legally authorized representative in accordance with local requirements), written informed consent for the trial. The participant or legally authorized representative may also provide consent for Future Biomedical Research. Exclusion Criteria: Have an actual body weight <100 kg. Have a pacemaker or automatic implantable cardioverter-defibrillator that precludes the assessment of bradycardia or arrhythmias. Have a medical condition or surgical procedure that precludes reversal of neuromuscular block at the end of surgery. Have neuromuscular disorder(s) that may affect neuromuscular block and/or trial assessments. Are dialysis-dependent or have severe renal insufficiency (defined as estimated creatinine clearance of <30 mL/min.). Have or are suspected of having a personal history or family history (parents, grandparents, or siblings) of malignant hyperthermia. Have or are suspected of having an allergy (e.g., hypersensitivity and/or anaphylactic reaction) to study treatments or its/their excipients, to opioids/opiates, muscle relaxants or their excipients, or other medication(s) used during general anesthesia. Have received or are planning to receive toremifene within 24 hours before or within 24 hours after study medication administration. Have any condition that would contraindicate the administration of study medication. Are currently pregnant, attempting to become pregnant, or lactating. Have any clinically significant condition or situation (e.g., anatomical malformation that complicates intubation) other than the condition being studied that, in the opinion of the investigator, would interfere with the trial evaluations or optimal participation in the trial. Are currently participating in or has participated in an interventional clinical trial with an investigational compound (including any other current or ongoing trial with a Sugammadex treatment arm) or device within 30 days of signing the informed consent form of this current trial.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Medical Director
Organizational Affiliation
Merck Sharp & Dohme LLC
Official's Role
Study Director
Facility Information:
Facility Name
University California / Davis ( Site 2001)
City
Sacramento
State/Province
California
ZIP/Postal Code
95817
Country
United States
Facility Name
Jackson Memorial Hospital/University of Miami ( Site 2007)
City
Miami
State/Province
Florida
ZIP/Postal Code
33136
Country
United States
Facility Name
University of Kansas Medical Center ( Site 2049)
City
Kansas City
State/Province
Kansas
ZIP/Postal Code
66160
Country
United States
Facility Name
William Beaumont Hospital - Royal Oak ( Site 2033)
City
Royal Oak
State/Province
Michigan
ZIP/Postal Code
48073
Country
United States
Facility Name
University Hospital- Columbia MO ( Site 2060)
City
Columbia
State/Province
Missouri
ZIP/Postal Code
65212
Country
United States
Facility Name
Robert Wood Johnson University Hospital ( Site 2037)
City
New Brunswick
State/Province
New Jersey
ZIP/Postal Code
08901
Country
United States
Facility Name
Mission Hospital - St. Joseph ( Site 2015)
City
Asheville
State/Province
North Carolina
ZIP/Postal Code
28801
Country
United States
Facility Name
Cleveland Clinic Foundation ( Site 2031)
City
Cleveland
State/Province
Ohio
ZIP/Postal Code
44195
Country
United States
Facility Name
Temple University Hospital ( Site 2004)
City
Philadelphia
State/Province
Pennsylvania
ZIP/Postal Code
19140
Country
United States
Facility Name
Vanderbilt University Medical Center ( Site 2032)
City
Nashville
State/Province
Tennessee
ZIP/Postal Code
37232
Country
United States
Facility Name
Hermann Drive Surgical Center ( Site 2020)
City
Houston
State/Province
Texas
ZIP/Postal Code
77004
Country
United States
Facility Name
Hermann Drive Surgical Center ( Site 2059)
City
Houston
State/Province
Texas
ZIP/Postal Code
77004
Country
United States
Facility Name
Zablocki VA Medical Center ( Site 2011)
City
Milwaukee
State/Province
Wisconsin
ZIP/Postal Code
53295
Country
United States
Facility Name
Sozialmedizinisches Zentrum Ost - Donauspital ( Site 2150)
City
Wien
ZIP/Postal Code
1220
Country
Austria
Facility Name
Universitaire Ziekenhuis Antwerpen - UZA ( Site 2200)
City
Edegem
ZIP/Postal Code
2650
Country
Belgium
Facility Name
Bispebjerg og Frederiksberg Hospital ( Site 2250)
City
Copenhagen NV
ZIP/Postal Code
2400
Country
Denmark
Facility Name
Rigshospitalet ( Site 2253)
City
Copenhagen
ZIP/Postal Code
2100
Country
Denmark
Facility Name
Johanniter Krankenhaus Bonn ( Site 2353)
City
Bonn
ZIP/Postal Code
53113
Country
Germany
Facility Name
Diakovere Annastift gGmbH ( Site 2355)
City
Hannover
ZIP/Postal Code
30625
Country
Germany
Facility Name
Universitatsklinikum Giessen und Marburg GmbH ( Site 2356)
City
Marburg
ZIP/Postal Code
35043
Country
Germany
Facility Name
Klinikum Rechts der Isar Technische Universitaet Muenchen ( Site 2350)
City
Muenchen
ZIP/Postal Code
81675
Country
Germany
Facility Name
St. Franziskus-Hospital ( Site 2354)
City
Muenster
ZIP/Postal Code
48145
Country
Germany
Facility Name
Klinikum am Steinenberg Reutlingen ( Site 2352)
City
Reutlingen
ZIP/Postal Code
72764
Country
Germany
Facility Name
Josephs-Hospitals Warendorf ( Site 2351)
City
Warendorf
ZIP/Postal Code
48231
Country
Germany

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf
IPD Sharing URL
http://engagezone.msd.com/ds_documentation.php
Citations:
PubMed Identifier
33278332
Citation
Mostoller K, Wrishko R, Maganti L, Herring WJ, van Zutphen-van Geffen M. Pharmacokinetics of Sugammadex Dosed by Actual and Ideal Body Weight in Patients With Morbid Obesity Undergoing Surgery. Clin Transl Sci. 2021 Mar;14(2):737-744. doi: 10.1111/cts.12941. Epub 2020 Dec 16.
Results Reference
background
PubMed Identifier
33639839
Citation
Horrow JC, Li W, Blobner M, Lombard J, Speek M, DeAngelis M, Herring WJ. Actual versus ideal body weight dosing of sugammadex in morbidly obese patients offers faster reversal of rocuronium- or vecuronium-induced deep or moderate neuromuscular block: a randomized clinical trial. BMC Anesthesiol. 2021 Feb 27;21(1):62. doi: 10.1186/s12871-021-01278-w.
Results Reference
derived

Learn more about this trial

Efficacy and Safety of Sugammadex Dosed According to Actual Body Weight (ABW) or Ideal Body Weight (IBW) in Reversal of Neuromuscular Blockade (NMB) in Morbidly Obese Participants (MK-8616-146)

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