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Assessing Use Of Mifepristone After Progestin Priming For Use As Missed Period Pills

Assessing Use Of Mifepristone After Progestin Priming For Use As Missed Period Pills

Status
UNKNOWN
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04676776
Enrollment
139
Registered
2020-12-21
Start date
2021-01-25
Completion date
2021-12-31
Last updated
2021-08-12

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

Conditions

Missed Menstrual Period

Brief summary

This study will assess the effectiveness and acceptability of a 3-day missed period pill regimen.

Detailed description

Missed period pills (MPPs) are medications used for uterine evacuation among women with late menses who have not confirmed pregnancy status. Provision of MPPs could expand reproductive service options for individuals in a variety of settings. This study will collect data on the efficacy, safety, and acceptability of a 3-day missed period pill regimen among individuals with missed menses of 1-10 days

Interventions

DRUGLevonorgestrel

All participants receive 1.5 mg levonorgestrel on day 1

DRUGMifepristone

All participants receive 200 mg mifepristone on day 3

Sponsors

Cuidado Integral de la Mujer, Gineclinic, S.C.
CollaboratorUNKNOWN
Gynuity Health Projects
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Simon's two-stage design

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 49 Years
Healthy volunteers
Yes

Inclusion criteria

* Age 18-49 years * General good health * Does not want to be pregnant * History of regular monthly menstrual cycles (±3 days) * Missed menses of 1 to 10 days as verified by report of last menstrual period * Sexual activity in the past month * Willing and able to sign consent forms * Willing to return for a follow-up visit * Willing to provide a urine sample at enrollment and at follow-up

Exclusion criteria

* Known allergies or contraindications to mifepristone * Symptoms of or risk factors for ectopic pregnancy, such as vaginal bleeding or spotting within the past week; unilateral pelvic pain or significant bilateral pelvic pain within the past week; prior ectopic pregnancy; prior permanent contraception or other tubal surgery * Current use of an IUD, contraceptive implant or injectable

Design outcomes

Primary

MeasureTime frameDescription
Efficacy of missed period pill regimenUp to 28 days after administration of levonorgestrelProportion of participants not pregnant at follow-up among those who were pregnant at enrollment

Secondary

MeasureTime frameDescription
Effectiveness of missed period pill regimenUp to 28 days after administration of levonorgestrelProportion of all enrolled participants not pregnant at follow-up (among those who were and were not pregnant at enrollment)
Effectiveness at inducing return of menses within 10 daysUp to 10 days after administration of levonorgestrelProportion of participants reporting return of missed menses within 10 days of initiating missed period pill regimen
Occurrence of treatment-emergent adverse events and/or side effects (safety and tolerability)Up to 28 days after administration of levonorgestrelProportion of participants who report adverse events and/or side effects
Acceptability of missed period pillsUp to 28 days after administration of levonorgestrelProportion of participants who report that the missed period pill service was acceptable or highly acceptable to them

Countries

Mexico

Contacts

Primary ContactHolly A Anger
hanger@gynuity.org2124481230
Backup ContactManuel Bousieguez
mbousieguez@gynuity.org2124481230

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026