Studies on the behavioural effects of fear: pilot study of the effects of inhaled carbon dioxide on subjective emotions and physiological measures in patients with irritable bowel syndrome (IBS)

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN94637457

Enrollment

Registered

2005-09-30

Start date

2004-08-01

Completion date

Unknown

Last updated

2015-01-13

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

Conditions

Irritable bowel syndrome (IBS) Digestive System Irritable bowel syndrome

Interventions

Single, blind, placebo controlled trial of inhaled carbon dioxide with traditional anxiolytic lorazepam administered orally prior to the procedure.

Eligibility

Inclusion criteria

Inclusion criteria: Patients with irritable bowel syndrome (IBS)

Exclusion criteria

Exclusion criteria: History of cardiovascular or respiratory disease

Design outcomes

Primary

Measure	Time frame
Measurable fear using subjective ratings	—

Secondary

Measure	Time frame
Not provided at time of registration	—

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026