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Dose-Finding Pediatric and Adult Trial With Sugammadex (Org 25969, MK-8616, SCH 900616) (19.4.306) (MK-8616-034) (P05961)

A Multi-Center, Randomized, Parallel Dose-Finding, Safety Assessor-Blinded Trial to Explore the Efficacy, Safety and Pharmacokinetics of Four Doses of Org 25969 and Placebo in Pediatric and Adult Subjects.

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00421148
Enrollment
94
Registered
2007-01-11
Start date
2005-05-30
Completion date
2006-06-02
Last updated
2019-01-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anesthesia

Brief summary

The purpose of this study is: * to explore the dose-response relation of sugammadex (Org 25969, MK-8616, SCH 900616) given as a reversal agent at reappearance of T2 after 0.6 mg.kg-1 rocuronium in pediatric and adult participants * to explore the pharmacokinetics (PK) of sugammadex in pediatric and adult participants, and to evaluate the safety of sugammadex in pediatric and adult participants.

Interventions

IV infusion

DRUGPlacebo

IV infusion

DRUGRocuronium bromide

IV infusion

DRUGSugammadex 0.5 mg/kg

IV infusion

IV infusion

IV infusion

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
28 Days to 65 Years
Healthy volunteers
No

Inclusion criteria

* American Society of Anesthesiologists (ASA) class 1 - 2, between the ages of 28 days and 65 years inclusive, and between the ages of 2 and 65 years inclusive for Germany and between the ages of 6 and 65 years inclusive for Finland * Scheduled for general anesthesia with an anticipated duration of anesthesia of at least 60 minutes, without further need for muscle relaxation other than one single dose of 0.6 mg/kg rocuronium * Scheduled for surgical procedures in the supine position * Participants who, and/or whose parent(s) or legal guardian(s) have given written informed consent \[or appropriate assent, if applicable\]

Exclusion criteria

* Known or suspected neuromuscular disorders impairing neuromuscular blockade (NMB) and/or significant renal dysfunction, in Germany creatinine and blood urea nitrogen outside local reference ranges * Known or suspected to have a (family) history of malignant hyperthermia * Known or suspected to have an allergy to narcotics, muscle relaxants or other medication used during general anesthesia * Use of medication expected to interfere with the rocuronium given in this trial, based on the dose and the time of administration * Pregnancy * Childbearing potential not using any of the following methods of birth control: condom or diaphragm with spermicide, vasectomized partner (\>6 months), intrauterine device (IUD), abstinence * Breast-feeding * Prior participation in any study with Org 25969 (sugammadex) * Participation in another clinical trial, not pre-approved by NV Organon, within 30 days of entering into study 19.4.306 (MK-8616-034, P05961)

Design outcomes

Primary

MeasureTime frameDescription
Time From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.9From start of sugammadex or palcebo administration to recovery of T4/T1 ratio to 0.9 (ranging from ~0.5 minutes to ~30 minutes from sugammadex or placebo administration)Neuromuscular functioning was monitored by applying repetitive Train-Of-Four (TOF) electrical stimulations to the ulnar nerve every 15 seconds & assessing twitch response at the adductor pollicis muscle. T1 & T4 refer to the magnitudes (heights) of the first & fourth twitches, respectively, after TOF nerve stimulation. The T4/T1 Ratio (expressed as a decimal of up to 1.0) indicates the extent of recovery from neuromuscular blockade (NMB). In this study, twitch responses were recorded until the T4/T1 Ratio reached ≥0.9, the minimum acceptable ratio that indicated recovery from NMB. A faster time to recovery of the T4/T1 Ratio to 0.9 indicates a faster recovery from NMB.

Secondary

MeasureTime frameDescription
Time From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.7From start of sugammadex or placebo administration to recovery of T4/T1 ratio to 0.7 (ranging from ~0.4 minutes to ~20 minutes from sugammadex or placebo administration)Neuromuscular functioning was monitored by applying repetitive TOF electrical stimulations to the ulnar nerve every 15 seconds & assessing twitch response at the adductor pollicis muscle. T1 & T4 refer to the magnitudes (heights) of the first & fourth twitches, respectively, after TOF nerve stimulation. The T4/T1 Ratio (expressed as a decimal of up to 1.0) indicates the extent of recovery from NMB. A faster time to recovery of the T4/T1 Ratio to 0.7 indicates a faster recovery from NMB.
Time From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.8From start of sugammadex or placebo administration to recovery of T4/T1 ratio to 0.8 (ranging from ~0.5 minutes to ~25 minutes from sugammadex or placebo administration)Neuromuscular functioning was monitored by applying repetitive TOF electrical stimulations to the ulnar nerve every 15 seconds & assessing twitch response at the adductor pollicis muscle. T1 & T4 refer to the magnitudes (heights) of the first & fourth twitches, respectively, after TOF nerve stimulation. The T4/T1 Ratio (expressed as a decimal of up to 1.0) indicates the extent of recovery from NMB. A faster time to recovery of the T4/T1 Ratio to 0.8 indicates a faster recovery from NMB.

Participant flow

Recruitment details

Recruited participants were stratified between Infants (28 days-23 months of age), Children (2-11 years of age), Adolescents (12-17 years of age) and Adults (18-65 years of age). For Participant Flow, participants are included in the treatment group to which they were randomized.

Pre-assignment details

One adolescent participant was inadvertently randomized to Children: Sugammadex 4 mg/kg, but was included in Adolescents: Sugammadex 4 mg/kg for safety analyses. One participant was randomized to Adolescents: Sugammadex 0.5 mg/kg, but received sugammadex 5.0 mg/kg & was included in the Adolescents: Sugammadex 4 mg/kg for safety analyses.

Participants by arm

ArmCount
Infants: Placebo
Infant participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of placebo (sodium chloride 0.9% solution) was administered.
2
Infants: Sugammadex 0.5 mg/kg
Infant participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 0.5 mg/kg sugammadex was administered.
2
Infants: Sugammadex 1 mg/kg
Infant participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 1 mg/kg sugammadex was administered.
2
Infants: Sugammadex 2 mg/kg
Infant participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 2 mg/kg sugammadex was administered.
1
Children: Placebo
Child participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of placebo (sodium chloride 0.9% solution) was administered.
4
Children: Sugammadex 0.5 mg/kg
Child participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 0.5 mg/kg sugammadex was administered.
6
Children: Sugammadex 1 mg/kg
Child participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 1 mg/kg sugammadex was administered
5
Children: Sugammadex 2 mg/kg
Child participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 2 mg/kg sugammadex was administered.
5
Children: Sugammadex 4 mg/kg
Child participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 4 mg/kg sugammadex was administered.
4
Adolescents: Placebo
Adolescent participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of placebo (sodium chloride 0.9% solution) was administered.
6
Adolescents: Sugammadex 0.5 mg/kg
Adolescent participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 0.5 mg/kg sugammadex was administered.
5
Adolescents: Sugammadex 1 mg/kg
Adolescents participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 1 mg/kg sugammadex was administered.
6
Adolescents: Sugammadex 2 mg/kg
Adolescent participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 2 mg/kg sugammadex was administered.
6
Adolescents: Sugammadex 4 mg/kg
Adolescent participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 4 mg/kg sugammadex was administered.
8
Adults: Placebo
Adult participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of placebo (sodium chloride 0.9% solution) was administered.
6
Adults: Sugammadex 0.5 mg/kg
Adult participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 0.5 mg/kg sugammadex was administered.
6
Adults: Sugammadex 1 mg/kg
Adult participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 1 mg/kg sugammadex was administered.
5
Adults: Sugammadex 2 mg/kg
Adult participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 2 mg/kg sugammadex was administered.
5
Adults: Sugammadex 4 mg/kg
Adult participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 4 mg/kg sugammadex was administered.
6
Infants: Sugammadex 4 mg/kg
Infant participants received an IV single bolus dose of 0.6 mg/kg rocuronium. At reappearance of T2, an IV single bolus dose of 4 mg/kg sugammadex was administered.
1
Total91

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009FG010FG011FG012FG013FG014FG015FG016FG017FG018FG019
Overall StudyLost to Follow-up00000000000000000100
Overall StudyProtocol Violation00000100000000000010
Overall StudyWithdrawal by Subject00000000000000000100

Baseline characteristics

CharacteristicInfants: PlaceboInfants: Sugammadex 0.5 mg/kgInfants: Sugammadex 1 mg/kgInfants: Sugammadex 2 mg/kgChildren: PlaceboChildren: Sugammadex 0.5 mg/kgChildren: Sugammadex 1 mg/kgChildren: Sugammadex 2 mg/kgChildren: Sugammadex 4 mg/kgAdolescents: PlaceboAdolescents: Sugammadex 0.5 mg/kgAdolescents: Sugammadex 1 mg/kgAdolescents: Sugammadex 2 mg/kgAdolescents: Sugammadex 4 mg/kgAdults: PlaceboAdults: Sugammadex 0.5 mg/kgAdults: Sugammadex 1 mg/kgAdults: Sugammadex 2 mg/kgAdults: Sugammadex 4 mg/kgInfants: Sugammadex 4 mg/kgTotal
Age, Continuous1 Years
STANDARD_DEVIATION 0
1 Years
STANDARD_DEVIATION 0
1 Years
STANDARD_DEVIATION 0
0 Years9 Years
STANDARD_DEVIATION 1
9 Years
STANDARD_DEVIATION 3
8 Years
STANDARD_DEVIATION 2
9 Years
STANDARD_DEVIATION 2
6 Years
STANDARD_DEVIATION 3
15 Years
STANDARD_DEVIATION 2
14 Years
STANDARD_DEVIATION 1
15 Years
STANDARD_DEVIATION 2
14 Years
STANDARD_DEVIATION 0
14 Years
STANDARD_DEVIATION 2
49 Years
STANDARD_DEVIATION 12
41 Years
STANDARD_DEVIATION 17
37 Years
STANDARD_DEVIATION 8
38 Years
STANDARD_DEVIATION 10
38 Years
STANDARD_DEVIATION 14
1 Years19.8 Years
STANDARD_DEVIATION 16.4
Sex: Female, Male
Female
2 Participants2 Participants0 Participants0 Participants1 Participants5 Participants3 Participants3 Participants2 Participants3 Participants0 Participants3 Participants3 Participants4 Participants0 Participants2 Participants2 Participants1 Participants2 Participants0 Participants38 Participants
Sex: Female, Male
Male
0 Participants0 Participants2 Participants1 Participants3 Participants1 Participants2 Participants2 Participants2 Participants3 Participants5 Participants3 Participants3 Participants4 Participants6 Participants4 Participants3 Participants4 Participants4 Participants1 Participants53 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
EG010
affected / at risk
EG011
affected / at risk
EG012
affected / at risk
EG013
affected / at risk
EG014
affected / at risk
EG015
affected / at risk
EG016
affected / at risk
EG017
affected / at risk
EG018
affected / at risk
EG019
affected / at risk
deaths
Total, all-cause mortality
0 / 20 / 20 / 20 / 10 / 10 / 40 / 60 / 50 / 50 / 40 / 60 / 50 / 60 / 60 / 80 / 60 / 60 / 50 / 50 / 6
other
Total, other adverse events
2 / 21 / 21 / 21 / 11 / 13 / 44 / 62 / 52 / 54 / 45 / 63 / 53 / 65 / 65 / 83 / 61 / 65 / 54 / 53 / 6
serious
Total, serious adverse events
0 / 21 / 20 / 20 / 10 / 10 / 40 / 60 / 50 / 51 / 40 / 60 / 50 / 60 / 60 / 80 / 60 / 60 / 50 / 50 / 6

Outcome results

Primary

Time From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.9

Neuromuscular functioning was monitored by applying repetitive Train-Of-Four (TOF) electrical stimulations to the ulnar nerve every 15 seconds & assessing twitch response at the adductor pollicis muscle. T1 & T4 refer to the magnitudes (heights) of the first & fourth twitches, respectively, after TOF nerve stimulation. The T4/T1 Ratio (expressed as a decimal of up to 1.0) indicates the extent of recovery from neuromuscular blockade (NMB). In this study, twitch responses were recorded until the T4/T1 Ratio reached ≥0.9, the minimum acceptable ratio that indicated recovery from NMB. A faster time to recovery of the T4/T1 Ratio to 0.9 indicates a faster recovery from NMB.

Time frame: From start of sugammadex or palcebo administration to recovery of T4/T1 ratio to 0.9 (ranging from ~0.5 minutes to ~30 minutes from sugammadex or placebo administration)

Population: The Per Protocol (PP) population consisted of all randomized participants who received a dose of study treatment (sugammadex or placebo) \& had ≥1 post-baseline efficacy measurement for this outcome measure \& had no protocol violations. For efficacy, participants with incorrect randomization were included under the planned dose group.

ArmMeasureValue (MEAN)Dispersion
Infants: PlaceboTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.920.98 MinutesStandard Deviation 11.3
Infants: Sugammadex 0.5 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.93.72 MinutesStandard Deviation 0.63
Infants: Sugammadex 1 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.92.42 MinutesStandard Deviation 0.7
Infants: Sugammadex 2 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.90.58 Minutes
Children: PlaceboTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.919.57 MinutesStandard Deviation 10.97
Children: Sugammadex 0.5 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.95.22 MinutesStandard Deviation 3.5
Children: Sugammadex 1 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.93.95 MinutesStandard Deviation 3.23
Children: Sugammadex 2 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.91.20 MinutesStandard Deviation 0.35
Children: Sugammadex 4 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.91.57 MinutesStandard Deviation 1.9
Adolescents: PlaceboTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.922.77 MinutesStandard Deviation 13.1
Adolescents: Sugammadex 0.5 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.911.97 MinutesStandard Deviation 17.65
Adolescents: Sugammadex 1 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.91.77 MinutesStandard Deviation 0.37
Adolescents: Sugammadex 2 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.91.87 MinutesStandard Deviation 1.7
Adolescents: Sugammadex 4 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.91.08 MinutesStandard Deviation 0.25
Adults: PlaceboTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.929.48 MinutesStandard Deviation 8.43
Adults: Sugammadex 0.5 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.93.77 MinutesStandard Deviation 1.12
Adults: Sugammadex 1 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.91.62 MinutesStandard Deviation 0.3
Adults: Sugammadex 2 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.91.27 MinutesStandard Deviation 0.27
Adults: Sugammadex 4 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.91.37 MinutesStandard Deviation 0.38
Infants: Sugammadex 4 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.90.67 Minutes
Secondary

Time From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.7

Neuromuscular functioning was monitored by applying repetitive TOF electrical stimulations to the ulnar nerve every 15 seconds & assessing twitch response at the adductor pollicis muscle. T1 & T4 refer to the magnitudes (heights) of the first & fourth twitches, respectively, after TOF nerve stimulation. The T4/T1 Ratio (expressed as a decimal of up to 1.0) indicates the extent of recovery from NMB. A faster time to recovery of the T4/T1 Ratio to 0.7 indicates a faster recovery from NMB.

Time frame: From start of sugammadex or placebo administration to recovery of T4/T1 ratio to 0.7 (ranging from ~0.4 minutes to ~20 minutes from sugammadex or placebo administration)

Population: The PP population consisted of all randomized participants who received a dose of study treatment (sugammadex or placebo) \& had ≥1 post-baseline efficacy measurement for this outcome measure \& had no protocol violations. For efficacy, participants with incorrect randomization were included under the planned dose group.

ArmMeasureValue (MEAN)Dispersion
Infants: PlaceboTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.714.85 MinutesStandard Deviation 8.65
Infants: Sugammadex 0.5 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.72.47 MinutesStandard Deviation 0.07
Infants: Sugammadex 1 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.71.78 MinutesStandard Deviation 0.18
Infants: Sugammadex 2 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.70.58 Minutes
Children: PlaceboTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.712.32 MinutesStandard Deviation 7
Children: Sugammadex 0.5 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.72.62 MinutesStandard Deviation 0.93
Children: Sugammadex 1 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.71.45 MinutesStandard Deviation 0.38
Children: Sugammadex 2 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.70.75 MinutesStandard Deviation 0.12
Children: Sugammadex 4 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.70.57 MinutesStandard Deviation 0.13
Adolescents: PlaceboTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.718.62 MinutesStandard Deviation 9.72
Adolescents: Sugammadex 0.5 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.72.77 MinutesStandard Deviation 1.27
Adolescents: Sugammadex 1 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.71.07 MinutesStandard Deviation 0.12
Adolescents: Sugammadex 2 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.70.95 MinutesStandard Deviation 0.3
Adolescents: Sugammadex 4 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.70.83 MinutesStandard Deviation 0.2
Adults: PlaceboTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.719.65 MinutesStandard Deviation 5.38
Adults: Sugammadex 0.5 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.71.62 MinutesStandard Deviation 0.25
Adults: Sugammadex 1 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.71.27 MinutesStandard Deviation 0.35
Adults: Sugammadex 2 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.70.87 MinutesStandard Deviation 0.23
Adults: Sugammadex 4 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.71.12 MinutesStandard Deviation 0.38
Infants: Sugammadex 4 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.70.42 Minutes
Secondary

Time From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.8

Neuromuscular functioning was monitored by applying repetitive TOF electrical stimulations to the ulnar nerve every 15 seconds & assessing twitch response at the adductor pollicis muscle. T1 & T4 refer to the magnitudes (heights) of the first & fourth twitches, respectively, after TOF nerve stimulation. The T4/T1 Ratio (expressed as a decimal of up to 1.0) indicates the extent of recovery from NMB. A faster time to recovery of the T4/T1 Ratio to 0.8 indicates a faster recovery from NMB.

Time frame: From start of sugammadex or placebo administration to recovery of T4/T1 ratio to 0.8 (ranging from ~0.5 minutes to ~25 minutes from sugammadex or placebo administration)

Population: The PP population consisted of all randomized participants who received a dose of study treatment (sugammadex or placebo) \& had ≥1 post-baseline efficacy measurement for this outcome measure \& had no protocol violations. For efficacy, participants with incorrect randomization were included under the planned dose group.

ArmMeasureValue (MEAN)Dispersion
Infants: PlaceboTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.817.85 MinutesStandard Deviation 10.42
Infants: Sugammadex 0.5 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.82.97 MinutesStandard Deviation 0.07
Infants: Sugammadex 1 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.82.03 MinutesStandard Deviation 0.17
Infants: Sugammadex 2 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.80.58 Minutes
Children: PlaceboTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.814.20 MinutesStandard Deviation 8.32
Children: Sugammadex 0.5 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.83.42 MinutesStandard Deviation 1.4
Children: Sugammadex 1 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.81.85 MinutesStandard Deviation 0.7
Children: Sugammadex 2 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.80.95 MinutesStandard Deviation 0.23
Children: Sugammadex 4 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.80.75 MinutesStandard Deviation 0.45
Adolescents: PlaceboTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.821.92 MinutesStandard Deviation 12.52
Adolescents: Sugammadex 0.5 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.84.92 MinutesStandard Deviation 4.08
Adolescents: Sugammadex 1 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.81.35 MinutesStandard Deviation 0.17
Adolescents: Sugammadex 2 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.80.98 MinutesStandard Deviation 0.38
Adolescents: Sugammadex 4 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.80.87 MinutesStandard Deviation 0.18
Adults: PlaceboTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.824.77 MinutesStandard Deviation 9.33
Adults: Sugammadex 0.5 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.82.22 MinutesStandard Deviation 0.6
Adults: Sugammadex 1 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.81.37 MinutesStandard Deviation 0.35
Adults: Sugammadex 2 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.81.07 MinutesStandard Deviation 0.23
Adults: Sugammadex 4 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.81.27 MinutesStandard Deviation 0.3
Infants: Sugammadex 4 mg/kgTime From Start of Administration of Study Treatment (Sugammadex or Placebo) to Recovery T4/T1 Ratio to 0.80.67 Minutes

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026