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Does using progesterone in threatened miscarriage increase the live birth rate?

In women with threatened miscarriage, does progesterone supplementation increase the likelihood of live birth?

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12611000405910
Acronym
Supporting Threatened Outcomes with Progesterone (STOP trial)
Enrollment
279
Registered
2011-04-19
Start date
2012-02-08
Completion date
2019-03-29
Last updated
2021-12-21

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

Conditions

None listed

Brief summary

This project will assess the effect of progesterone therapy on pregnancy outcomes in women presenting with threatened miscarriage. It is hypothesised that progesterone supplementation for early threatened pregnancy increases the live birth rate.

Interventions

Progesterone pessary 400 mg nightly, until 12 weeks + 0 days

Sponsors

Dr Luke McLindon
Lead SponsorIndividual

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Threatened miscarriage Live intra-uterine pregnancy Gestation less than 10 weeks + 0 days

Exclusion criteria

Pregnancy as a result of Assisted Reproductive Technologies

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 15, 2026