NCT02568345

Brief Summary

The purpose of this study is to determine the minimum effective dose of sugammadex, an antagonist of neuromuscular blockade used during anesthesia practice, in obese patients, considering that sugammadex is indicated in adults with normal weight at a dose of 2 mg/kg but no studies were found with obese patients.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
31

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Jan 2013

Shorter than P25 for phase_4

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2013

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2013

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2014

Completed
1.8 years until next milestone

First Submitted

Initial submission to the registry

October 2, 2015

Completed
3 days until next milestone

First Posted

Study publicly available on registry

October 5, 2015

Completed
5 months until next milestone

Results Posted

Study results publicly available

February 22, 2016

Completed
Last Updated

February 22, 2016

Status Verified

January 1, 2016

Enrollment Period

9 months

First QC Date

October 2, 2015

Results QC Date

October 6, 2015

Last Update Submit

January 22, 2016

Conditions

Keywords

Dose-Response RelationshipDrugObesityCyclodextrins

Outcome Measures

Primary Outcomes (1)

  • Sugammadex ED90

    Complete reversal of neuromuscular blockade occured when the patient had a TOF T4/T1 ≥ 0.9 within eight minutes of sugammadex infusion. The sequencial design method of up-and-down was applied to determine the minimum effective dose in 90% of patients (ED90). An effective dose is one that achieves complete reversal of neuromuscular blockade that is defined as a measure of TOF equal or higher than 0.9, or a relationship between T4 an T1 measure ≥ 0.9, within eight minutes of sugammadex infusion.

    8 minutes

Study Arms (1)

sugammadex ED90

EXPERIMENTAL

Sequential design method up-and-down of the biased coin aimed to determine the minimum effective dose in 90% of patients (ED90). The following doses were chosen: 2.0 mg/kg, 2.2 mg/kg, 2.4 mg/kg, 2.6 mg/kg, 2.8 mg/kg.

Drug: sugammadex ED90

Interventions

The first patient received the dose of 2.4 mg/kg and if there was a negative response, the next patient would be allocated to receive the next higher dose of 2.6 mg/kg. In case that 2.4 mg/kg did produce a positive response, the next patient would be randomized with 10% of probability to receive the next dose of 2.2 mg/kg or 90% probability to receive the same dose of 2.4 mg/kg.

Also known as: ED90
sugammadex ED90

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • a body mass index ≥ 40 kg/m2
  • bariatric surgery
  • informed consent signed

You may not qualify if:

  • history of neuromuscular diseases,
  • use of drugs that could interfere with neuromuscular transmission,
  • allergy to neuromuscular agents of the aminosteroids class,
  • anticipated difficulty in airway management,
  • renal failure

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (26)

  • 1983 metropolitan height and weight tables. Stat Bull Metrop Life Found. 1983 Jan-Jun;64(1):3-9. No abstract available.

    PMID: 6623350BACKGROUND
  • Abernethy DR, Greenblatt DJ, Divoll M, Smith RB, Shader RI. The influence of obesity on the pharmacokinetics of oral alprazolam and triazolam. Clin Pharmacokinet. 1984 Mar-Apr;9(2):177-83. doi: 10.2165/00003088-198409020-00005.

    PMID: 6143633BACKGROUND
  • Blouin RA, Kolpek JH, Mann HJ. Influence of obesity on drug disposition. Clin Pharm. 1987 Sep;6(9):706-14.

    PMID: 3315402BACKGROUND
  • de Boer HD, Driessen JJ, Marcus MA, Kerkkamp H, Heeringa M, Klimek M. Reversal of rocuronium-induced (1.2 mg/kg) profound neuromuscular block by sugammadex: a multicenter, dose-finding and safety study. Anesthesiology. 2007 Aug;107(2):239-44. doi: 10.1097/01.anes.0000270722.95764.37.

    PMID: 17667567BACKGROUND
  • Donati F. Sugammadex: a cyclodextrin to reverse neuromuscular blockade in anaesthesia. Expert Opin Pharmacother. 2008 Jun;9(8):1375-86. doi: 10.1517/14656566.9.8.1375.

    PMID: 18473711BACKGROUND
  • Duffull SB, Dooley MJ, Green B, Poole SG, Kirkpatrick CM. A standard weight descriptor for dose adjustment in the obese patient. Clin Pharmacokinet. 2004;43(15):1167-78. doi: 10.2165/00003088-200443150-00007.

    PMID: 15568893BACKGROUND
  • Epemolu O, Bom A, Hope F, Mason R. Reversal of neuromuscular blockade and simultaneous increase in plasma rocuronium concentration after the intravenous infusion of the novel reversal agent Org 25969. Anesthesiology. 2003 Sep;99(3):632-7; discussion 6A. doi: 10.1097/00000542-200309000-00018.

    PMID: 12960547BACKGROUND
  • Janmahasatian S, Duffull SB, Ash S, Ward LC, Byrne NM, Green B. Quantification of lean bodyweight. Clin Pharmacokinet. 2005;44(10):1051-65. doi: 10.2165/00003088-200544100-00004.

    PMID: 16176118BACKGROUND
  • Mosteller RD. Simplified calculation of body-surface area. N Engl J Med. 1987 Oct 22;317(17):1098. doi: 10.1056/NEJM198710223171717. No abstract available.

    PMID: 3657876BACKGROUND
  • Nicholson WT, Sprung J, Jankowski CJ. Sugammadex: a novel agent for the reversal of neuromuscular blockade. Pharmacotherapy. 2007 Aug;27(8):1181-8. doi: 10.1592/phco.27.8.1181.

    PMID: 17655516BACKGROUND
  • Pai MP, Paloucek FP. The origin of the "ideal" body weight equations. Ann Pharmacother. 2000 Sep;34(9):1066-9. doi: 10.1345/aph.19381.

    PMID: 10981254BACKGROUND
  • Renes SH, van Geffen GJ, Rettig HC, Gielen MJ, Scheffer GJ. Minimum effective volume of local anesthetic for shoulder analgesia by ultrasound-guided block at root C7 with assessment of pulmonary function. Reg Anesth Pain Med. 2010 Nov-Dec;35(6):529-34. doi: 10.1097/AAP.0b013e3181fa1190.

    PMID: 20975468BACKGROUND
  • Sorgenfrei IF, Norrild K, Larsen PB, Stensballe J, Ostergaard D, Prins ME, Viby-Mogensen J. Reversal of rocuronium-induced neuromuscular block by the selective relaxant binding agent sugammadex: a dose-finding and safety study. Anesthesiology. 2006 Apr;104(4):667-74. doi: 10.1097/00000542-200604000-00009.

    PMID: 16571960BACKGROUND
  • Stylianou M, Flournoy N. Dose finding using the biased coin up-and-down design and isotonic regression. Biometrics. 2002 Mar;58(1):171-7. doi: 10.1111/j.0006-341x.2002.00171.x.

    PMID: 11890313BACKGROUND
  • Demirkaya M, Kelsaka E, Sarihasan B, Bek Y, Ustun E. The optimal dose of remifentanil for acceptable intubating conditions during propofol induction without neuromuscular blockade. J Clin Anesth. 2012 Aug;24(5):392-7. doi: 10.1016/j.jclinane.2011.11.006.

  • Garrett-Mayer E. The continual reassessment method for dose-finding studies: a tutorial. Clin Trials. 2006;3(1):57-71. doi: 10.1191/1740774506cn134oa.

  • George RB, McKeen D, Chaplin AC, McLeod L. Up-down determination of the ED(90) of oxytocin infusions for the prevention of postpartum uterine atony in parturients undergoing Cesarean delivery. Can J Anaesth. 2010 Jun;57(6):578-82. doi: 10.1007/s12630-010-9297-1. Epub 2010 Mar 18.

  • Gupta PK, Hopkins PM. Effect of concentration of local anaesthetic solution on the ED(5)(0) of bupivacaine for supraclavicular brachial plexus block. Br J Anaesth. 2013 Aug;111(2):293-6. doi: 10.1093/bja/aet033. Epub 2013 Mar 26.

  • Hammer GB, Litalien C, Wellis V, Drover DR. Determination of the median effective concentration (EC50) of propofol during oesophagogastroduodenoscopy in children. Paediatr Anaesth. 2001;11(5):549-53. doi: 10.1046/j.1460-9592.2001.00731.x.

  • Hennebry MC, Stocks GM, Belavadi P, Barnes J, Wray S, Columb MO, Lyons G. Effect of i.v. phenylephrine or ephedrine on the ED50 of intrathecal bupivacaine with fentanyl for caesarean section. Br J Anaesth. 2009 Jun;102(6):806-11. doi: 10.1093/bja/aep095. Epub 2009 May 2.

  • Kodaka M, Suzuki T, Maeyama A, Koyama K, Miyao H. Gender differences between predicted and measured propofol C(P50) for loss of consciousness. J Clin Anesth. 2006 Nov;18(7):486-9. doi: 10.1016/j.jclinane.2006.08.004.

  • Llaurado S, Sabate A, Ferreres E, Camprubi I, Cabrera A. Sugammadex ideal body weight dose adjusted by level of neuromuscular blockade in laparoscopic bariatric surgery. Anesthesiology. 2012 Jul;117(1):93-8. doi: 10.1097/ALN.0b013e3182580409.

  • Pace NL, Stylianou MP. Advances in and limitations of up-and-down methodology: a precis of clinical use, study design, and dose estimation in anesthesia research. Anesthesiology. 2007 Jul;107(1):144-52. doi: 10.1097/01.anes.0000267514.42592.2a.

  • Stylianou M, Proschan M, Flournoy N. Estimating the probability of toxicity at the target dose following an up-and-down design. Stat Med. 2003 Feb 28;22(4):535-43. doi: 10.1002/sim.1351.

  • Taha AM, Abd-Elmaksoud AM. Lidocaine use in ultrasound-guided femoral nerve block: what is the minimum effective anaesthetic concentration (MEAC90)? Br J Anaesth. 2013 Jun;110(6):1040-4. doi: 10.1093/bja/aes595. Epub 2013 Feb 5.

  • Van Lancker P, Dillemans B, Bogaert T, Mulier JP, De Kock M, Haspeslagh M. Ideal versus corrected body weight for dosage of sugammadex in morbidly obese patients. Anaesthesia. 2011 Aug;66(8):721-5. doi: 10.1111/j.1365-2044.2011.06782.x. Epub 2011 Jun 21.

MeSH Terms

Conditions

Obesity

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Mauro Prado da Silva
Organization
Central Hospital, Irmandade da Santa Casa de Misericórdia (ISCM)

Study Officials

  • Lígia Andrade ST Mathias, MD, Ph.D

    Full professor

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD, Staff

Study Record Dates

First Submitted

October 2, 2015

First Posted

October 5, 2015

Study Start

January 1, 2013

Primary Completion

October 1, 2013

Study Completion

January 1, 2014

Last Updated

February 22, 2016

Results First Posted

February 22, 2016

Record last verified: 2016-01

Data Sharing

IPD Sharing
Will share