ClinicalTrials.gg
CompletedNCT03353012Updated Jul 26, 2019

Acceptability & Tolerance of Immediate Versus Delayed Postpartum Contraceptive Implant

A Phase 4 interventional study of Etonogestrel Drug Implant and Levonorgestrel Drug Implant in Breastfeeding and Post Partum, sponsored by Chulalongkorn University. Completed at 1 site in Thailand. Open to female participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-07-26.

Sponsored by Chulalongkorn University · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
Female
01

Study summary

To study and compare acceptability and tolerance between breast-feeding post-partum woman, who receive contraceptive implant 48-72 hours after giving birth or at 5-7 weeks after giving birth, using either Levonorgestrel or Etonogestrel contraceptive implant.

Read the detailed description
  • To study and compare acceptability and tolerance between breast-feeding post-partum woman, who receive contraceptive implant 48-72 hours after giving birth or at 5-7 weeks after giving birth, using either Levonorgestrel or Etonogestrel contraceptive implant.
  • Participants who wish to attend the study will be invited to choose between Levonorgestrel and Etonogestrel contraceptive implant, then they will be randomized into immediate postpartum or delay postpartum group. They will be follow-up at 6 and 12 weeks after receive contraceptive implant.
  • Information about side effects, breastfeeding status, child growth, acceptability and tolerance will be noted using medical records and interviewing, gathering on paper case record forms.
  • Sample size N = 60 (30 in each group (Immediate and delay postpartum group, 15 in each subgroup (Levonogestrel and Etonogestrel group)) This number of sample size is already counted with 10% data loss
02

Conditions studied

  • Breastfeeding
  • Post Partum

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Keywords

  • Immediate postpartum implant
  • postpartum implant
  • implant contraception
  • Etonogestrel
  • Levonorgestrel
03

In context

Breast Feeding

1,081 studies on the registry are indexed under Breast Feeding; 217 are open to participants now.

This study's enrollment of 60 is below the median of 100 across 844 interventional studies indexed under Breast Feeding.

Browse Breast Feeding studies →

Lead sponsor

Chulalongkorn University is the lead sponsor of 322 studies on the registry; 66 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Breast-feeding post-partum woman aged 18-45 years who wish to use implant

Exclusion criteria

Exclusion Criteria:

  • Pregnant
  • Woman who has any medical conditions which is considered to use implant
  • Woman with severe antepartum or peripartum complications
  • Woman who is contraindicated to breastfeed.
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
60 participants (actual)

Study arms

  • Experimental
    Levonorgestrel immediate post-partum

    Breast-feeding postpartum woman who receive Levonorgestrel drug implant (75 mg) between 48-72 hr after child delivery

    Drug: Levonorgestrel Drug Implant

  • Experimental
    Etonogestrel immediate post-partum

    Breast-feeding postpartum woman who receive Etonogestrel drug implant (68 mg) between 48-72 hr after child delivery

    Drug: Etonogestrel Drug Implant

  • Active comparator
    Levonorgestrel delayed post-partum

    Breast-feeding postpartum woman who receive Levonorgestrel drug implant (75 mg) between 5-7 weeks after child delivery

    Drug: Levonorgestrel Drug Implant

  • Active comparator
    Etonogestrel delayed post-partum

    Breast-feeding postpartum woman who receive Etonogestrel drug implant (68 mg) between 5-7 weeks after child delivery

    Drug: Etonogestrel Drug Implant

Interventions

06

What researchers measure

Primary outcomes

  1. Number of participants with treatment-related adverse events

    To compare treatment-related adverse events between Immediate and delayed breastfeeding postpartum contraceptive users, using case record form which specify bleeding days, spotting days, abdominal discomfort, headache, acne, alopecia, weight and blood pressure of users.

    Time frame: immediately after contraceptive implant use until 12 weeks after use

  2. Removal rate of contraceptive implants users

    To compare tolerance between Immediate and delayed breastfeeding postpartum contraceptive users, by collecting and calculating removal rate of users.

    Time frame: immediately after contraceptive implant use until 12 weeks after use

  3. Satisfactory of contraceptive implant users

    To compare acceptability between Immediate and delayed breastfeeding postpartum contraceptive users, using questionnaire rating satisfactory scale by score from 1 to 5

    Time frame: immediately after contraceptive implant use until 12 weeks after use

Secondary outcomes

  1. Breastfeeding status

    To compare breastfeeding status between Immediate and delayed breastfeeding postpartum contraceptive users by using questionnaire whether each participant is full-breastfeeding, partial-breastfeeding or non-breastfeeding and specify reasons if she's not full-breastfeeding.

    Time frame: immediately after contraceptive implant use until 12 weeks after use

  2. Child weight

    To compare child growth by measuring weight, between Immediate and delayed breastfeeding postpartum contraceptive users.

    Time frame: immediately after contraceptive implant use until 12 weeks after use

  3. Child height

    To compare child growth by measuring height, between Immediate and delayed breastfeeding postpartum contraceptive users.

    Time frame: immediately after contraceptive implant use until 12 weeks after use

07

Study locations

1 site
  • King Chulalongkorn Memorial Hospital
    Pathum Wan, Bangkok 10330, Thailand
08

References and documents

Publications

  • Sothornwit J, Kaewrudee S, Lumbiganon P, Pattanittum P, Averbach SH. Immediate versus delayed postpartum insertion of contraceptive implant and IUD for contraception. Cochrane Database Syst Rev. 2022 Oct 27;10(10):CD011913. doi: 10.1002/14651858.CD011913.pub3. PubMed 36302159 ↗
09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jan 2018 to primary completion in May 2018, 4 months.

Of 17 phase 4 interventional studies under Breast Feeding, half reached primary completion within 14 months of starting (the median), counting those still running; a quarter within 7 and three quarters within 30. This study's 4 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 15, 2017
First posted
Nov 24, 2017
StartActual
Jan 1, 2018
Primary completionActual
May 1, 2018
CompletionActual
Aug 1, 2018
Last update
Jul 26, 2019
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 26, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03353012
Responsible party
Sponsor
First posted
Nov 24, 2017
Start date
Jan 1, 2018
Primary completion
May 1, 2018
Completion
Aug 1, 2018
Last update
Jul 26, 2019

Study contacts

Unnop Jaisamrarn, M.D.
study chair · Chulalongkorn University

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2017. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drugs tested here: Etonogestrel · Levonorgestrel

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