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Nexplanon Application Post-Abortion (NAPA)

Immediate vs. Delayed Insertion of Nexplanon After Termination of Pregnancy Over 14-weeks Gestation (NAPA)

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02037919
Acronym
NAPA
Enrollment
148
Registered
2014-01-16
Start date
2014-06-30
Completion date
2017-05-31
Last updated
2024-02-12

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

Conditions

Abortion, Therapeutic, Contraception

Brief summary

Women who receive Nexplanon immediately post abortion will be significantly more likely to be using the device 6 months after the procedure than those assigned to receive the device 2-4 weeks after the procedure.

Detailed description

Women will be contacted 6 months after their abortion to ask about contraception use and side effects.

Interventions

OTHERImmediate Nexplanon Insertion

Patient will have a Nexplanon inserted within 15 minutes of her abortion

OTHERPost-op Nexplanon Insertion

Place Nexplanon at post operative visit rather than at surgery

Sponsors

Merck Sharp & Dohme LLC
CollaboratorINDUSTRY
The Cleveland Clinic
CollaboratorOTHER
Family Planning Associates Medical Group, LTD
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE

Eligibility

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

Inclusion criteria

* 18 years of age and older, * an intrauterine pregnancy \> 14 weeks and \<23 6/7 weeks gestation and desire termination of pregnancy * desire a Nexplanon for contraception * able to give informed consent in English * no contraindications to Nexplanon (based on U.S. CDC Medical Eligibility Criteria for Contraception) or D&E

Exclusion criteria

* unable to give informed consent * have any of the following medical conditions: active venous thromboembolism, known or suspected sex-steroid sensitive malignancies, current hepatic disease with abnormal liver function tests, undiagnosed vaginal bleeding, hypersensitivity to any of the ingredients in Nexplanon. * non-surgical management of pregnancy * prior participation in this study * breast cancer or a history of breast cancer

Design outcomes

Primary

MeasureTime frameDescription
Intention-to-treat Analysis of Etonogestrel Implant Use6 monthsCurrent use of Etonogestrel implant, confirmed via phone by participant palpation, at 6 months post-insertion, with all entire sample used in calculations.
Per-protocol Analysis of Etonogestrel Implant Use6 monthsCurrent use of Etonogestrel implant, confirmed via phone by participant palpation, at 6 months post-insertion, with only participants who completed the 6-month follow-up used in calculations.

Secondary

MeasureTime frameDescription
Repeat Pregnancy6 monthsOccurrence of a pregnancy within 6 months after second-trimester abortion.

Other

MeasureTime frameDescription
Implant InsertedWithin 4 weeks of abortionWhether participants had the implant inserted as part of the study
Completed 6-month Phone Call6 monthsWhether participants completed 6-month phone call follow-up.

Countries

United States

Participant flow

Recruitment details

A total of 148 participants were recruited and randomized into two study arms.

Pre-assignment details

Participants were randomized.

Participants by arm

ArmCount
Immediate Nexplanon Insertion
An etonogestrel rod will be placed within 15 minutes following the abortion procedure. Immediate Nexplanon Insertion: Patient will have a Nexplanon inserted within 15 minutes of her abortion
73
Post-op Nexplanon Insertion
Participants in the delayed placement group will be asked to return to Magee-Womens Hospital for a post-abortion visit 2-4 weeks following the procedure. Participants in the delayed group will be offered a method of contraception to use in the interim between their procedure and their insertion appointment. At this time an etonogestrel rod will be placed in her arm using standard procedure. Post-op Nexplanon Insertion: Place Nexplanon at post operative visit rather than at surgery
75
Total148

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up3045

Baseline characteristics

CharacteristicImmediate Nexplanon InsertionPost-op Nexplanon InsertionTotal
Age, Continuous25 years23 years24 years
Birth control methods used in the past
Abstinence
4 Participants1 Participants5 Participants
Birth control methods used in the past
Barrier
71 Participants71 Participants142 Participants
Birth control methods used in the past
DMPA
42 Participants45 Participants87 Participants
Birth control methods used in the past
Implant
3 Participants3 Participants6 Participants
Birth control methods used in the past
LNG IUD
5 Participants5 Participants10 Participants
Birth control methods used in the past
None
1 Participants3 Participants4 Participants
Birth control methods used in the past
Pill, patch, or ring
55 Participants52 Participants107 Participants
Birth control methods used in the past
Withdrawal
14 Participants21 Participants35 Participants
D&E indication
Declined to answer
2 Participants2 Participants4 Participants
D&E indication
Fetal anomaly
0 Participants2 Participants2 Participants
D&E indication
Maternal health issue
2 Participants4 Participants6 Participants
D&E indication
Other
15 Participants15 Participants30 Participants
D&E indication
Social or economic
59 Participants61 Participants120 Participants
Education
Associate's degree
5 Participants2 Participants7 Participants
Education
Bachelor's degree
3 Participants3 Participants6 Participants
Education
High school equivalency certificate
27 Participants25 Participants52 Participants
Education
Less than high school
10 Participants14 Participants24 Participants
Education
Some college
28 Participants31 Participants59 Participants
History of STI13 Participants14 Participants27 Participants
Insurance Type
None
20 Participants10 Participants30 Participants
Insurance Type
Private
3 Participants7 Participants10 Participants
Insurance Type
Private and Public
0 Participants1 Participants1 Participants
Insurance Type
Public
50 Participants57 Participants107 Participants
Latina22 Participants20 Participants42 Participants
Marital Status
Married
2 Participants2 Participants4 Participants
Marital Status
Never married
69 Participants70 Participants139 Participants
Marital Status
Separated or divorced
2 Participants3 Participants5 Participants
No. of children alive2 Number of children alive1 Number of children alive1.5 Number of children alive
Positive Smoking Status17 Participants15 Participants32 Participants
Prior D&E36 Participants41 Participants77 Participants
Race/Ethnicity, Customized
Race
African American
45 Participants52 Participants97 Participants
Race/Ethnicity, Customized
Race
Native American or Alaska Native
0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Race
White
28 Participants22 Participants50 Participants
Region of Enrollment
United States
73 Participants75 Participants148 Participants
Sex: Female, Male
Female
73 Participants75 Participants148 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants
Total no. of pregnancies
Abortion
1 Number of pregnancies1 Number of pregnancies1 Number of pregnancies
Total no. of pregnancies
Preterm
0 Number of pregnancies0 Number of pregnancies0 Number of pregnancies
Total no. of pregnancies
Term
1 Number of pregnancies1 Number of pregnancies1 Number of pregnancies
Total no. of pregnancies
Total
4 Number of pregnancies4 Number of pregnancies4 Number of pregnancies
Using insurance for D&E
No
20 Participants11 Participants31 Participants
Using insurance for D&E
Not Covered
52 Participants61 Participants113 Participants
Using insurance for D&E
Yes
1 Participants3 Participants4 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 730 / 75
other
Total, other adverse events
2 / 731 / 75
serious
Total, serious adverse events
0 / 730 / 75

Outcome results

Primary

Intention-to-treat Analysis of Etonogestrel Implant Use

Current use of Etonogestrel implant, confirmed via phone by participant palpation, at 6 months post-insertion, with all entire sample used in calculations.

Time frame: 6 months

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Immediate Nexplanon InsertionIntention-to-treat Analysis of Etonogestrel Implant UseUsing implant at 6 months40 Participants
Immediate Nexplanon InsertionIntention-to-treat Analysis of Etonogestrel Implant UseImplant removed before 6 months3 Participants
Post-op Nexplanon InsertionIntention-to-treat Analysis of Etonogestrel Implant UseUsing implant at 6 months19 Participants
Post-op Nexplanon InsertionIntention-to-treat Analysis of Etonogestrel Implant UseImplant removed before 6 months3 Participants
Primary

Per-protocol Analysis of Etonogestrel Implant Use

Current use of Etonogestrel implant, confirmed via phone by participant palpation, at 6 months post-insertion, with only participants who completed the 6-month follow-up used in calculations.

Time frame: 6 months

Population: Calculated using only participants who completed the 6-month follow-up.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Immediate Nexplanon InsertionPer-protocol Analysis of Etonogestrel Implant UseImplant removed before 6 months3 Participants
Immediate Nexplanon InsertionPer-protocol Analysis of Etonogestrel Implant UseUsing implant at 6 months40 Participants
Immediate Nexplanon InsertionPer-protocol Analysis of Etonogestrel Implant UseImplant never placed0 Participants
Post-op Nexplanon InsertionPer-protocol Analysis of Etonogestrel Implant UseUsing implant at 6 months19 Participants
Post-op Nexplanon InsertionPer-protocol Analysis of Etonogestrel Implant UseImplant removed before 6 months3 Participants
Post-op Nexplanon InsertionPer-protocol Analysis of Etonogestrel Implant UseImplant never placed8 Participants
Secondary

Repeat Pregnancy

Occurrence of a pregnancy within 6 months after second-trimester abortion.

Time frame: 6 months

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Immediate Nexplanon InsertionRepeat PregnancyRepeat pregnancy within 6 months1 Participants
Immediate Nexplanon InsertionRepeat PregnancyNo repeat pregnancy in 6 months42 Participants
Post-op Nexplanon InsertionRepeat PregnancyRepeat pregnancy within 6 months1 Participants
Post-op Nexplanon InsertionRepeat PregnancyNo repeat pregnancy in 6 months29 Participants
Other Pre-specified

Completed 6-month Phone Call

Whether participants completed 6-month phone call follow-up.

Time frame: 6 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Immediate Nexplanon InsertionCompleted 6-month Phone Call43 Participants
Post-op Nexplanon InsertionCompleted 6-month Phone Call30 Participants
Other Pre-specified

Implant Inserted

Whether participants had the implant inserted as part of the study

Time frame: Within 4 weeks of abortion

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Immediate Nexplanon InsertionImplant Inserted73 Participants
Post-op Nexplanon InsertionImplant Inserted32 Participants

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