Bishop Score vs. Cervical Length in Labor Induction

NCT07208552 | Not Yet Recruiting

• 1 other identifier: Bishop Score vs. Cervical
• Study Type: observational
• Target: 88
• Locations: 0 countries
• Sites: N/A

Brief Summary

The study population consists of term primigravida women undergoing induction of labor at a tertiary care referral center in Assiut, Egypt.

Conditions

Bishop Score; Primigravida Women; Cervical Length

Keywords

Bishop Score; primigravida women

Outcome Measures

Primary Outcomes (1)

• Rate of vaginal delivery

  The proportion of women achieving vaginal delivery after induction of labor within 24 hours of initiation.

  Within 24 hours

Study Arms (2)

Transvaginal Ultrasound Group (TVUS):

Participants undergo sonographic measurement of cervical length. A CL \<28 mm is considered favorable for successful induction. This method provides an objective and reproducible cervical assessment.

Bishop Score Group (BS):

Participants undergo digital vaginal examination to assign Bishop Scores. A score ≥6 is considered favorable for induction. This is the traditional method of assessing cervical readiness.

Eligibility Criteria

• Gender Eligibility Details: primigravida women
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Participants include 88 primigravida women at ≥37 weeks of gestation, each with a singleton pregnancy in cephalic presentation. All participants present with medical or obstetric indications for induction of labor, such as post-dates, oligohydramnios, mild preeclampsia, or premature rupture of membranes. Exclusion criteria include prior uterine surgery, multiple pregnancies, malpresentation, placenta previa, vasa previa, non-reassuring fetal status at admission, or maternal infections such as active genital herpes and HIV. A carefully designed sample size calculation ensures adequate power, with a final cohort of 44 women per study arm.

You may qualify if:

• Singleton pregnancy
• Cephalic fetal presentation
• Gestational age ≥37 weeks (confirmed by reliable dating)
• Indication for induction of labor (postdate pregnancy, oligohydramnios, mild preeclampsia, premature rupture of membranes)

You may not qualify if:

• Previous uterine surgery (e.g., cesarean section, myomectomy)
• Multiple gestation
• Malpresentation
• Placenta previa or vasa previa
• Non-reassuring fetal heart status at admission
• Active genital herpes or HIV infection

Sponsors & Collaborators

• Assiut University: lead

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: resident at the Obstetrics and Gynecology department

Study Record Dates

• First Submitted: September 28, 2025
• First Posted: October 6, 2025
• Study Start (Estimated): September 1, 2026
• Primary Completion (Estimated): June 30, 2027
• Study Completion (Estimated): November 30, 2027
• Last Updated: October 6, 2025

Record last verified: 2025-09