Assessment of usability of tissue hardness tester using acoustic waves

Assessment of usability of tissue hardness tester using acoustic waves in determining risk of threatened preterm birth - ATTAWTPB

Status

Recruiting

Phases

Phase 1

Study type

Unknown

Source

JPRN

Registry ID

JPRN-jRCTs022190005

Enrollment

130

Registered

2019-07-12

Start date

2019-10-07

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

threatened premature labor threatened premature labor

Interventions

none

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: 1) Age: 20 to 44 years old 2) 30 pregnant women of 22 to 36 weeks gestation diagnosed with threatened premature delivery managed in hospital or outpatient in our department 3) 30 pregnant women at 22 to 36 weeks of gestation with no signs of threatened premature delivery managed in outpatient (control group) 4) 70 pregnant women after 37 weeks gestation scheduled for delivery in our department

Exclusion criteria

Exclusion criteria: 1) If not gain consent

Design outcomes

Primary

Measure	Time frame
Clinical effectiveness of preterm birth risk assessment by hardness tester	—

Contacts

Public ContactHiroshi Miura

Akita University Hospital

miurah@doc.med.akita-u.ac.jp+81-18-884-6163

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026