Skip to content

Sugammadex, neostigmine and postoperative pulmonary complications (SNaPP): a randomised controlled trial

The SNaPP Study: A multi-centre, patient- and observer-blinded randomised controlled trial of sugammadex or neostigmine to reverse neuromuscular blockade in adult patients having abdominal and thoracic surgery under general anaesthesia

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12623000394640
Acronym
The SNaPP Study
Enrollment
3500
Registered
2023-04-18
Start date
2023-07-20
Completion date
2025-07-03
Last updated
2025-09-08

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

Conditions

None listed

Brief summary

During general anaesthesia muscle relaxant drugs are administered to make airway management and surgery easier. Muscle relaxants are usually reversed with neostigmine at the end of the operation. A newer drug, sugammadex, reverses muscle relaxants more rapidly than neostigmine, but is not clear whether sugammadex results in fewer postoperative complications than neostigmine. We are conducting a large multi-centre randomised controlled trial to investigate whether sugammadex is associated with fewer postoperative lung complications than neostigmine.

Interventions

Sugammadex as a single intravenous dose at the end of surgery with dose personalised by quantitative neuromuscular monitoring. Quantitative neuromuscular monitoring is recommended by the Australian and New Zealand College of Anaesthetists. It is applied at induction of anaesthesia and is removed after reversal of neuromuscular blockade at the end of surgery. Quantitative neuromuscular monitoring results, reversal drug name and dose will be recorded in the hospital medical record. Adherance to th

Sugammadex as a single intravenous dose at the end of surgery with dose personalised by quantitative neuromuscular monitoring. Quantitative neuromuscular monitoring is recommended by the Australian and New Zealand College of Anaesthetists. It is applied at induction of anaesthesia and is removed after reversal of neuromuscular blockade at the end of surgery. Quantitative neuromuscular monitoring results, reversal drug name and dose will be recorded in the hospital medical record. Adherance to the intervention will be monitored via audit of the hospital medical record.

Sponsors

University of Melbourne
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Prevention
Masking
Blinded (masking used) (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
All
Age
40 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Plan for elective or expedited intraabdominal, retroperitoneal, pelvic and non-cardiac intrathoracic surgery 2. Plan for relaxant general anaesthesia with an endotracheal tube 3. Surgery expected to last greater than or equal to 2 hours 4.Expected hospital stay of greater than or equal to 1 postoperative night

Exclusion criteria

1. Unable to provide written informed consent (e.g., language barrier, intellectual disability, cognitive deficit, urgent surgery) 2. Plan for skin incision and/or vascular access at or below the inguinal ligament without an abdominal or thoracic skin incision 3. Plan for intraoperative administration of neuromuscular blocking drug other than rocuronium and vecuronium 4. Plan to reverse neuromuscular blockade during surgery 5. Plan to allow spontaneous complete recovery from neuromuscular blockade during surgery 6. Contraindication to sugammadex or neostigmine 7. Plan for elective postoperative invasive ventilation 8. Previously randomised to the trial

Outcome results

None listed

Source: ANZCTR · Data processed: Jun 11, 2026