NCT03118297

Brief Summary

The subdermal etonogestrel (ENG) implant, a long-acting reversible contraceptive (LARC) method, is among the most effective forms of reversible contraception and thus, an important tool in the quest to reduce unintended pregnancy. However, despite overall increases in LARC use in the United States from 1.5% in 2002 to 7.2% in 2011, and 11.6% most recently in 2015, implant use continues to make up a small proportion of LARC use. While evidence to explain this low uptake of implants is lacking, one potential reason is patient and provider concerns about unpredictable bleeding. As a result of this, many studies have been performed in attempts to discover therapies for unscheduled bleeding in progestin-only contraceptive users. Some of these studies include those investigating selective progesterone receptor modulators, such as mifepristone and ulipristal acetate (UPA), which did find some benefit. Although a previous study showed mixed benefit, the investigators feel that this medication has demonstrated both biologic plausibility as well as clinically important outcomes. This previous study may not be entirely translatable to the proposed research as therapies were used for different indications (prophylaxis vs. treatment) and different progestins and delivery systems were studied. Therefore, the investigators believe UPA should not be discounted as a potential therapy. UPA may provide an additional safe and effective option for treatment of irregular bleeding with implants in women. In addition, UPA is currently available in outpatient pharmacies in the U.S. as a single 30mg oral tablet. The investigators propose to investigate UPA for the treatment of unscheduled and troublesome bleeding in ENG implant users.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
65

participants targeted

Target at below P25 for phase_3

Timeline
Completed

Started May 2017

Shorter than P25 for phase_3

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 4, 2017

Completed
14 days until next milestone

First Posted

Study publicly available on registry

April 18, 2017

Completed
13 days until next milestone

Study Start

First participant enrolled

May 1, 2017

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 31, 2018

Completed
7 months until next milestone

Results Posted

Study results publicly available

August 31, 2018

Completed
Last Updated

August 31, 2018

Status Verified

August 1, 2018

Enrollment Period

9 months

First QC Date

April 4, 2017

Results QC Date

June 27, 2018

Last Update Submit

August 28, 2018

Conditions

Keywords

Etonogestrel Implant

Outcome Measures

Primary Outcomes (1)

  • Number of Bleeding/Spotting Days With Use of Ulipristal Acetate as Measured by Daily Bleeding Diaries

    To evaluate the effectiveness of ulipristal acetate (15mg) in decreasing bleeding/spotting days due to the ENG implant over a 30-day period as compared to placebo.

    30 days

Secondary Outcomes (4)

  • Number of Participants With Bleeding Cessation by Day 10

    10 days

  • Participant Satisfaction With Bleeding Pattern at 30 Days

    30 days

  • Number of Participants With Medication Side Effects by 30 Days

    30 days

  • Ovulation Status Measured by Weekly Serum Progesterone Levels

    Baseline, weeks 1, 2, 3, 4

Study Arms (2)

Ulipristal Acetate

EXPERIMENTAL

15mg ulipristal acetate (capsule) daily for 7 days

Drug: Ulipristal Acetate

Placebo

PLACEBO COMPARATOR

Identical placebo (capsule) daily for 7 days

Drug: Placebo oral capsule

Interventions

Women who have bothersome bleeding with the etonogestrel implant will be randomized to receive ulipristal acetate versus placebo daily for 7 days.

Ulipristal Acetate

Women who have bothersome bleeding with the etonogestrel implant will be randomized to receive ulipristal acetate versus placebo daily for 7 days.

Placebo

Eligibility Criteria

Age18 Years - 45 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Women age 18-45
  • Implant placed \>90 days and \<3 years prior to enrollment
  • Patient complaint of bothersome irregular bleeding with implant
  • Willing to be abstinent or use condoms during study period
  • Willing to complete 30-day bleeding diary
  • Willing to be randomized to placebo or ulipristal acetate
  • Ability to send/receive SMS text message

You may not qualify if:

  • Non-English speaking
  • Implant placed \>3 years prior to enrollment
  • Contraindication to ulipristal acetate (current use of barbiturates, bosentan, carbamazepine, felbamate, griseofulvin, oxcarbazepine, phenytoin, rifampin, St. John's Wort, topiramate, known or suspected pregnancy, hypersensitivity to active substance or excipients, uterine/cervical/ovarian/breast cancer, severe asthma insufficiently controlled by oral glucocorticoids)
  • Inability or unwillingness to comply with medication protocol
  • Inability or unwillingness to comply with bleeding diary
  • Breastfeeding

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Washington University School of Medicine in St. Louis

St Louis, Missouri, 63110, United States

Location

Related Publications (1)

  • Zigler RE, Madden T, Ashby C, Wan L, McNicholas C. Ulipristal Acetate for Unscheduled Bleeding in Etonogestrel Implant Users: A Randomized Controlled Trial. Obstet Gynecol. 2018 Oct;132(4):888-894. doi: 10.1097/AOG.0000000000002810.

MeSH Terms

Conditions

Hemorrhage

Interventions

ulipristal acetate

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Intervention To End Recurrent Unscheduled bleeding Trial (INTERRUPT): A randomized-controlled trial
Organization
WashingtonU

Study Officials

  • Rachel Zigler, MD

    Washington University School of Medicine

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Fellow

Study Record Dates

First Submitted

April 4, 2017

First Posted

April 18, 2017

Study Start

May 1, 2017

Primary Completion

January 31, 2018

Study Completion

January 31, 2018

Last Updated

August 31, 2018

Results First Posted

August 31, 2018

Record last verified: 2018-08

Data Sharing

IPD Sharing
Will not share

Locations