Nasal hyper-reactivity in multiple chemical sensitivity and chronic fatigue syndrome: randomised double blind, placebo-controlled, cross-over, nasal challenge study to evaluate neural and vascular responsiveness

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN52896230

Enrollment

Registered

2003-09-12

Start date

2002-09-27

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

Ear, Nose and Throat Ear, Nose and Throat

Interventions

Not provided at time of registration

Eligibility

Inclusion criteria

Inclusion criteria: 36 subjects between age of 18 - 60 years, 12 of which are healthy controls.

Exclusion criteria

Exclusion criteria: Not provided at time of registration

Design outcomes

Primary

Measure	Time frame
1. Concentration at which challenge is discontinued 2. Nasal lavage inflammatory proteins pre and post 3. Magnitude of symptoms	—

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