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Comparative plasma and cerebrospinal fluid pharmacokinetics of paracetamol following intravenous and oral administration

Plasma and cerebrospinal fluid concentrations of 1 g intravenous paracetamol compared with 1 g and 1.5 g oral paracetamol in adult surgical patients

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12615000322538
Enrollment
21
Registered
2015-04-09
Start date
2008-02-22
Completion date
2009-03-16
Last updated
2020-01-13

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

Conditions

None listed

Brief summary

The primary purpose of this study was to determine the concentrations of the drug paracetamol in the plasma and cerebrospinal fluid after intravenous and oral administration to adult patients having surgery under spinal anaesthesia.

Interventions

Single bolus dose of 1 g intravenous paracetamol given immediately before induction of spinal anaesthesia

Sponsors

Royal Melbourne Hospital
Lead SponsorHospital

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used) (Investigator)

Eligibility

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

Inclusion criteria

1. aged 18 years and over 2. presenting for elective surgery under spinal anaesthesia 3. able to communicate in English 4. no contraindication to paracetamol 5. no paracetamol within previous 12 hours

Exclusion criteria

1. aged <18 years 2. not planned for spinal anaesthesia 3. unable to communicate in English 4. contraindication to paracetamol 5. paracetamol within previous 12 hours

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026