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A Study of Use of Ella®, an Emergency Contraceptive, Under Simulated OTC Conditions

A Multi-Center, Open-Label Trial Investigating Behavior Related to Ella® Use in a Simulated OTC Environment (LIBRella)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03208985
Acronym
LIBRella
Enrollment
1270
Registered
2017-07-06
Start date
2017-05-23
Completion date
2018-06-14
Last updated
2022-12-02

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

Conditions

Emergency Contraception

Keywords

Emergency contraception

Brief summary

This study is designed to assess whether consumers select and use ella® (ulipristal acetate 30mg), an emergency contraceptive, in a manner consistent with the OTC package directions in an OTC-like setting.

Detailed description

All potential subject coming to a site looking to purchase EC will be offered to participate in the study. Subjects who meet the initial screening inclusion criteria for the study will review package information and make a self-selection and purchase decision. Subjects who meet all remaining inclusion criteria will purchase ella®, and use based on their understanding of the package information. Follow-up data regarding product use and adverse events will be obtained during telephone interviews at approximately Week-2 and Week-6 after the date the subject was dispensed study product.

Interventions

DRUGUse Phase (Ulipristal Acetate, 30 mg)

All subjects enrolled in the use phase of this open-label study will be given the opportunity to purchase and take 30 mg of ulipristal acetate. Subjects are to use the investigational product based on their understanding of the directions on the outer packaging including Drug Facts Label and inside the product packaging (in the Consumer Information Leaflet).

Sponsors

HRA Pharma
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Healthy volunteers
Yes

Inclusion criteria

* Women who are self-pay or who are willing to be self-pay for the purposes of the study and who present for emergency contraception only for their own use

Exclusion criteria

* Cannot read, speak and understand English * Cannot see well enough to read information on the label

Design outcomes

Primary

MeasureTime frameDescription
Proportion of Dosing Instances Among User Population Taken Within 120 Hours (5 Days) of Most Recent Episode of Unprotected Sex.Up to 6 WeeksThe first primary endpoint is the proportion in which the denominator includes all dosing instances of the IP and the numerator includes all dosing instances of the IP which were taken within 120 hours (5 days) of the subject's most recent episode of unprotected sex.
Proportion of Dosing Instances Among User Population in Which no More Than One Tablet Was Taken.Up to 6 WeeksThe second primary endpoint is the proportion in which the denominator is all discrete dosing instances of the IP and the numerator includes all dosing instances where no more than one tablet was taken.
Proportion of Female Selectors Who Are Not Pregnant at the Time of Selection Decision.Day 1The third primary endpoint is the proportion in which the denominator includes all females who selected to use the product (regardless of whether they purchased/used) and the numerator includes all female selectors who were not pregnant at the time of the selection decision.

Countries

United States

Participant flow

Recruitment details

In order to be as representative as possible of the OTC EC-seeking population, when potential subjects came to a site looking to purchase EC, they've been offered the opportunity to participate in the study. If approximately 75% of subjects pass the screening criteria, self-select and both qualify and agree to purchase and enter the use phase, it was expected that up to 1270 subjects will need to be interviewed to yield 950 purchasers and 760 in use population.

Participants by arm

ArmCount
Use Phase (Ulipristal Acetate, 30 mg)
One tablet of 30 mg of ulipristal acetate for emergency contraception Use Phase (Ulipristal Acetate, 30 mg): All subjects enrolled in the use phase of this open-label study will be given the opportunity to purchase and take 30 mg of ulipristal acetate. Subjects are to use the investigational product based on their understanding of the directions on the outer packaging including Drug Facts Label and inside the product packaging (in the Consumer Information Leaflet).
681
Total681

Baseline characteristics

CharacteristicUse Phase (Ulipristal Acetate, 30 mg)
Age, Continuous26.4 years
Ethnicity (NIH/OMB)
Hispanic or Latino
173 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
506 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
2 Participants
Literacy using REALM test pr REALM Teen test
Literacy Unknown
5 Participants
Literacy using REALM test pr REALM Teen test
Low Literacy
104 Participants
Literacy using REALM test pr REALM Teen test
Normal Literacy
572 Participants
Race (NIH/OMB)
American Indian or Alaska Native
7 Participants
Race (NIH/OMB)
Asian
31 Participants
Race (NIH/OMB)
Black or African American
224 Participants
Race (NIH/OMB)
More than one race
59 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
9 Participants
Race (NIH/OMB)
Unknown or Not Reported
68 Participants
Race (NIH/OMB)
White
283 Participants
Region of Enrollment
United States
681 participants
Sex: Female, Male
Female
681 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 783
other
Total, other adverse events
132 / 783
serious
Total, serious adverse events
15 / 783

Outcome results

Primary

Proportion of Dosing Instances Among User Population in Which no More Than One Tablet Was Taken.

The second primary endpoint is the proportion in which the denominator is all discrete dosing instances of the IP and the numerator includes all dosing instances where no more than one tablet was taken.

Time frame: Up to 6 Weeks

ArmMeasureValue (NUMBER)
Use Phase (Ulipristal Acetate, 30 mg)Proportion of Dosing Instances Among User Population in Which no More Than One Tablet Was Taken.712 Dosing no more than 1 tablet was taken
Primary

Proportion of Dosing Instances Among User Population Taken Within 120 Hours (5 Days) of Most Recent Episode of Unprotected Sex.

The first primary endpoint is the proportion in which the denominator includes all dosing instances of the IP and the numerator includes all dosing instances of the IP which were taken within 120 hours (5 days) of the subject's most recent episode of unprotected sex.

Time frame: Up to 6 Weeks

Population: User Population: subjects who have taken at least one dose of study medication during the study.

ArmMeasureValue (NUMBER)
Use Phase (Ulipristal Acetate, 30 mg)Proportion of Dosing Instances Among User Population Taken Within 120 Hours (5 Days) of Most Recent Episode of Unprotected Sex.704 Dosing instances 120 hrs of unprotec.sex
Primary

Proportion of Female Selectors Who Are Not Pregnant at the Time of Selection Decision.

The third primary endpoint is the proportion in which the denominator includes all females who selected to use the product (regardless of whether they purchased/used) and the numerator includes all female selectors who were not pregnant at the time of the selection decision.

Time frame: Day 1

Population: Subjects who accepted the invitation to participate and met study inclusion criteria, participated in a face-to-face interview at the study site and made a self-selection and purchase decision, have performed an enrollment pregnancy test and either have answered 'No' to the question 'Are you currently pregnant?'

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Use Phase (Ulipristal Acetate, 30 mg)Proportion of Female Selectors Who Are Not Pregnant at the Time of Selection Decision.814 Participants

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