- Conditions
- Cervical Insufficiency, Preterm Birth, Cervical Length Measurement
- Interventions
- Cervical Length Measurement at the Beginning of the Anatomy Survey, Cervical Length Measurement at the End of the Anatomy Survey
- Procedure
- Lead sponsor
- Henry Ford Health System
- Other
- Eligibility
- Female only
- Enrollment
- 550 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2027
- U.S. locations
- 1
- States / cities
- Detroit, Michigan
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- Conditions
- Preterm Labor
- Interventions
- Not listed
- Lead sponsor
- CAMC Health System
- Other
- Eligibility
- 14 Years to 45 Years · Female only
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2010
- U.S. locations
- 1
- States / cities
- Charleston, West Virginia
- Conditions
- Cervical Insufficiency
- Interventions
- Sequential ultrasound, Transvaginal ultrasound
- Procedure
- Lead sponsor
- Intermountain Women and Children's Research
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 210 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2012
- U.S. locations
- 1
- States / cities
- Salt Lake City, Utah
- Conditions
- Pregnancy, Preterm Birth, Cervical Length Measurement
- Interventions
- Not listed
- Lead sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- NIH
- Eligibility
- 15 Years and older · Female only
- Enrollment
- 648 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1998 – 2008
- U.S. locations
- 1
- States / cities
- Detroit, Michigan