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Use of 50% Nitrous Oxide / 50% Oxygen Premix During Liver Biopsy of Focal Lesion

Study of the Efficiency of Kalinox 170 Bar During Liver Biospy of Focal Lesion

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00643656
Enrollment
94
Registered
2008-03-26
Start date
2007-10-31
Completion date
2008-12-31
Last updated
2025-03-13

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

Conditions

Liver Biopsy

Keywords

Liver biopsy

Brief summary

A 50% nitrous oxide / 50% oxygen premix is administrated to the patient during the realization of liver biopsy in order to relax him and to reduce his pain during this painful medical treatment. This single investigator centre and national clinical trial is done blindly : half of patients will receive 50% nitrous oxide / 50% oxygen premix and half of them a placebo gas (mixture of 50% oxygen and 50% nitrogen). 94 patients will be included in this clinical protocol.

Interventions

Flow of gas administrated to the patient between 4 and 15 litre/min and less than 1 hour

DRUGMix of 50% oxygen and 50% nitrogen

Flow of gas administrated to the patient between 4 and 15 litre/min and less than 1 hour

Sponsors

Air Liquide Santé International
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

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

Inclusion criteria

* patient requiring a liver biopsy of focal lesion * Age upper than 18 years * OMS : 0 to 3 * patient consent form signed

Exclusion criteria

* patient unable to use Visual Analog Scale (VAS) * OMS upper than 3 * coagulation disorder * contraindication linked to the experimental product * patient already included in another clinical trial uncompatible with this trial

Design outcomes

Primary

MeasureTime frame
Pain measurement by using Visual Analog Scale (VAS)At the end of the liver biospy

Secondary

MeasureTime frame
Patient's acceptance and doctor's satisfactionAt the end of the liver biopsy

Countries

France

Outcome results

None listed

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