A population study into the prevalence and genetic profile of patients with chronic pain who do not respond to oral codeine

A single site, pilot population study into the prevalence and genetic profile of patients with chronic pain who do not respond to oral codeine

Status

Active, not recruiting

Phases

Phase 4

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN16874724

Enrollment

150

Registered

2010-05-12

Start date

2009-09-01

Completion date

Unknown

Last updated

2016-10-17

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

Conditions

Topic: Congenital Disorders

Interventions

A sample of 150 patients will be enrolled from the Leeds Chronic Pain Clinic over 18 months. Participants will attend the pain research clinic at Seacroft Hospital Leeds on three separate occasions (s

Eligibility

Inclusion criteria

Inclusion criteria: Not provided at time of registration

Exclusion criteria

Exclusion criteria: Not provided at time of registration

Design outcomes

Primary

Measure	Time frame
Proportion of chronic pain	—

Secondary

Measure	Time frame
Codeine non-responsiveness	—

Countries

United Kingdom

Outcome results

None listed

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