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Investigating how genetic differences relate to the risk of maternal fever due to epidural pain relief in mothers during labour

EPIFEVER-2: Mendelian randomisation study of polymorphisms in interleukin-1 receptor antagonist and epidural-related maternal fever.

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN99641204
Enrollment
637
Registered
2021-04-29
Start date
2021-04-28
Completion date
Unknown
Last updated
2025-09-08

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

Conditions

Epidural-related maternal fever in active labour Pregnancy and Childbirth Pyrexia during labour, not elsewhere classified

Interventions

Women are enrolled either in antenatal clinic or on admission to labour ward. A single blood sample is obtained around the time of epidural insertion. Clinical outcomes are collected for the duration

Sponsors

Queen Mary University of London
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1. Aged =18 years old 2. Singleton or twin pregnancy 3. Any gestational age 4. Requesting an epidural for labour analgesia

Exclusion criteria

Exclusion criteria: 1. Unwilling or unable to give consent 2. Refusal of consent for competent participants 3. Inability to understand written and/ or verbal English 4. Immune/genetic syndromes/mutations 5. Microbiologically proven infection prior to epidural insertion 6. Established pyrexia 7. Intrauterine death

Design outcomes

Primary

MeasureTime frame
The incidence of one or both of the following: 1. Maternal temperature >38°C (triggered by RCOG guidelines for two temperatures >37.5°C) recorded as part of their standard care from patient notes at least 4h after epidural analgesia is commenced 2. Prescription of antibiotics during labour before delivery measured from patient notes before delivery

Secondary

MeasureTime frame
Clinical outcomes for mother and baby measured from patient notes during their hospital stay

Countries

England, United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 18, 2026