Dose-response analysis methodology for epidural analgesia in the first stage of labour using ropivacaine and bupivacaine

Status

Active, not recruiting

Phases

Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR-TRC-09000707

Enrollment

Unknown

Registered

2007-12-05

Start date

2006-08-09

Completion date

Unknown

Last updated

2017-04-18

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

Conditions

labour

Interventions

Two groups:Allocation to receive a single randomized dose of ropivacaine or bupivacaine epidurally for analgesia in the first stage of labour, 30min

Eligibility

Sex/Gender

Male

Age

18 Years to 50 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria: American Society of Anesthesiologists physical status 1 or 2, nulliparous, uncomplicated singleton pregnancy, gestation greater than or equal to 36weeks, cephalic presentation, established labour with cervical dilatation less than or equal to 5 cm, baseline visual analogue scale pain score greater than or equal to 50 mm (scale: 0-100mm), requesting epidural analgesia in the first stage of labour.

Exclusion criteria

Exclusion criteria: Exclusion criteria: Inability or unwillingness to give informed consent, parenteral opioid received within the preceding 2 h, any contraindication to epidural analgesia or allergy to local anaesthetics.

Design outcomes

Primary

Measure	Time frame
Visual analogue scale pain scores in the first 30 min after administration.;	—

Countries

China

Contacts

Public ContactProf Warwick D. Ngan Kee

warwick@cuhk.edu.hk+852 26322735

Outcome results

None listed

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