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Long-Acting Reversible Contraception

Long-Acting Reversible Contraception: New Research to Reduce Unintended Pregnancy

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01299116
Acronym
LARC
Enrollment
916
Registered
2011-02-18
Start date
2011-12-31
Completion date
2016-12-31
Last updated
2018-02-28

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

Conditions

Contraception

Keywords

AE-adverse event, FDA-(U.S.) Food and Drug Administration, GCP-Good Clinical Practice guidelines, ICH-International Committee on Harmonisation, IRB-Institutional Review Board, IU-International units, mg-milligram(s), mm3-cubic millimeter(s), LARC-Long-Acting reversible contraception, PPCNC-Planned Parenthood of North Carolina, SAE-serious adverse event, SARC-Short-Acting reversible contraception, µg-microgram, ULN-upper limit of the normal range, SubQ-subcutaneous

Brief summary

In the proposed study, women aged 18-29 seeking oral or injectable contraception will be offered an opportunity to try LARC instead; the FDA-approved options include two types of intrauterine products and one type of subdermal contraceptive implant. Over a 24 month period, the experiences of LARC users will be compared to the experiences of those opting for their initial short-acting method.

Detailed description

In this partially randomized patient preference study, women aged 18-29 seeking oral or injectable contraception will be offered an opportunity to try LARC instead; the FDA-approved options include two types of intrauterine products and one type of subdermal contraceptive implant. Over a 24-month period, the experiences of LARC users will be compared to the experiences of those opting for their initial short-acting method. It is expected that 38% of the participants using short-acting methods will stop using them during the first year and be at risk of unintended pregnancy. In contrast, less than 20% of LARC users will want to have their contraceptive removed. Continuation rates will be measured and pregnancies will be tallied in the two groups to document any differences that emerge.

Interventions

DRUGDMPA

Injectable contraceptive, containing 150 mg depot medroxyprogesterone acetate (DMPA) and marketed in the US as Depo-Provera® or containing 104 mg DMPA and marketed as Depo-SubQ Provera 104®.

Oral contraceptives (any variety of formulations are permitted)

Subdermal contraceptive implant, marketed in the US as Implanon® or Nexplanon® (containing 68 mg of etonogestrel)

DRUGParaGard®

Intrauterine device marketed in the US as ParaGard® (a T-shaped plastic device containing 380mm2 of copper surface)

Intrauterine system, marketed in the US as Mirena® (containing 52 mg of levonorgestrel)

Sponsors

FHI 360
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Intervention model description

Partially randomized patient preference trial

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 29 Years
Healthy volunteers
Yes

Inclusion criteria

* 18 to 29 years of age; * sexually active; * seeking oral or injectable contraception; * working cell phone; * working email account; * willingness to be contacted by the clinic staff or study coordinators; and, * willingness to complete questionnaires.

Exclusion criteria

* currently pregnant; * previous use of a long-acting reversible contraceptive (LARC) method; and, * medical contraindications for oral contraceptives and injectables.

Design outcomes

Primary

MeasureTime frame
Contraceptive Method Discontinuation24 months

Secondary

MeasureTime frameDescription
Unintended Pregnancy24 monthsIntent-to-treat principles applied.
Participant Attitudes to LARC vs SARC24 monthsLevel of happiness with initial method (% distribution)

Countries

United States

Participant flow

Pre-assignment details

This is a partially randomized patient preference trial. Twenty two participants did not contribute data for analysis because they did not start a contraceptive in one of the three groups. For more information see: Hubacher D et al., 2017. The total number going forward for analysis is 894.

Participants by arm

ArmCount
Preference SARC
Participants received one of a variety of oral contraceptives or DMPA DMPA: Injectable contraceptive, containing 150 mg depot medroxyprogesterone acetate (DMPA) and marketed in the US as Depo-Provera® or containing 104 mg DMPA and marketed as Depo-SubQ Provera 104®. oral contraceptives: Oral contraceptives (any variety of formulations are permitted)
522
Randomized LARC
Participants receive one of the following interventions: Implanon® or Nexplanon®; ParaGard®; Mirena® Implanon®: Subdermal contraceptive implant, marketed in the US as Implanon® or Nexplanon® (containing 68 mg of etonogestrel) ParaGard®: Intrauterine device marketed in the US as ParaGard® (a T-shaped plastic device containing 380mm2 of copper surface) Mirena®: Intrauterine system, marketed in the US as Mirena® (containing 52 mg of levonorgestrel)
177
Randomized SARC
Participants received one of a variety of oral contraceptives or DMPA DMPA: Injectable contraceptive, containing 150 mg depot medroxyprogesterone acetate (DMPA) and marketed in the US as Depo-Provera® or containing 104 mg DMPA and marketed as Depo-SubQ Provera 104®. oral contraceptives: Oral contraceptives (any variety of formulations are permitted)
195
Total894

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyLost to Follow-up65911

Baseline characteristics

CharacteristicPreference SARCRandomized LARCRandomized SARCTotal
Age, Continuous23 years23 years23 years23 years
Race/Ethnicity, Customized
All other single and multiple race
58 Participants18 Participants16 Participants92 Participants
Race/Ethnicity, Customized
Hispanic
68 Participants14 Participants30 Participants112 Participants
Race/Ethnicity, Customized
Non-Hispanic, black
124 Participants34 Participants44 Participants202 Participants
Race/Ethnicity, Customized
Non-Hispanic, white
269 Participants111 Participants105 Participants485 Participants
Sex: Female, Male
Female
522 Participants177 Participants195 Participants894 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 5220 / 1770 / 195
other
Total, other adverse events
0 / 00 / 00 / 0
serious
Total, serious adverse events
0 / 5221 / 1770 / 195

Outcome results

Primary

Contraceptive Method Discontinuation

Time frame: 24 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
SARC - PreferenceContraceptive Method Discontinuation300 Participants
LARC - RandomizedContraceptive Method Discontinuation62 Participants
SARC - RandomizedContraceptive Method Discontinuation142 Participants
Secondary

Participant Attitudes to LARC vs SARC

Level of happiness with initial method (% distribution)

Time frame: 24 months

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
SARC - PreferenceParticipant Attitudes to LARC vs SARCHappy354 Participants
SARC - PreferenceParticipant Attitudes to LARC vs SARCNeutral52 Participants
SARC - PreferenceParticipant Attitudes to LARC vs SARCUnhappy50 Participants
SARC - PreferenceParticipant Attitudes to LARC vs SARCMissing66 Participants
LARC - RandomizedParticipant Attitudes to LARC vs SARCMissing9 Participants
LARC - RandomizedParticipant Attitudes to LARC vs SARCHappy120 Participants
LARC - RandomizedParticipant Attitudes to LARC vs SARCUnhappy33 Participants
LARC - RandomizedParticipant Attitudes to LARC vs SARCNeutral15 Participants
SARC - RandomizedParticipant Attitudes to LARC vs SARCMissing11 Participants
SARC - RandomizedParticipant Attitudes to LARC vs SARCNeutral24 Participants
SARC - RandomizedParticipant Attitudes to LARC vs SARCUnhappy22 Participants
SARC - RandomizedParticipant Attitudes to LARC vs SARCHappy138 Participants
Secondary

Unintended Pregnancy

Intent-to-treat principles applied.

Time frame: 24 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
SARC - PreferenceUnintended Pregnancy47 Participants
LARC - RandomizedUnintended Pregnancy6 Participants
SARC - RandomizedUnintended Pregnancy13 Participants

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