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Pethidine versus Diamorphine Study

A two centre randomised controlled trial comparing intramuscular diamorphine and intramuscular pethidine for labour analgesia

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN14898678
Enrollment
450
Registered
2010-05-12
Start date
2008-11-01
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

Topic: Reproductive Health and Childb, Generic Health Relevance and Cross Cutting Themes, Primary Care Research Network for England

Interventions

Study Medicinal Products: 7.5 mg diamorphine and 150 mg pethidine up to a maximum of two doses with a minimal interval of 2 hours between doses. Total duration of treatment and follow-up will be the
the initial anticipated end date was 01/05/2010.

Sponsors

Poole Hospital NHS Foundation Trust (UK)
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1. Active labour with a singleton pregnancy 2. Regular uterine contractions of at least two in 10 minutes 3. Cervical dilatation of at least 3 cm 4. Foetal gestational age of 37 - 42 weeks 5. Minimum weight of 60 kg 6. Multiparous and nulliparous women 7. Spontaneously gone into labour or have had an amniotomy and intravenous oxytocin to induce labour 8. Aged 18 years and over

Exclusion criteria

Exclusion criteria: 1. Allergy or previous severe reaction to opioid analgesia 2. Opioid dependency 3. History of foetal compromise 4. Maternal cardiorespiratory compromise 5. American Society of Anaesthesiologists (ASA) grade 3 and 4 6. Maternal weight greater than 120 kg

Design outcomes

Primary

MeasureTime frame
1. Change in pain intensity over 3 hours (AUC) 2. Side effects: 2.1. Need for neonatal resuscitation 2.2. Apgar score less than 7 at 1 minute

Secondary

MeasureTime frame
1. Pain relief 2. Maternal sedation 3. Nausea and vomiting 4. CTG 5. Patient satisfaction 6. % choosing analgesia for next pregnancy 7. Meconium staining 8. UApH 9. UVpH 10. Apgar scores 11. Naloxone 12. Neonatal SpO2 13. Feeding behaviour

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Mar 28, 2026