Immediate Versus Delayed Insertion of Intrauterine Contraception After Medical Abortion

  • End date
    Dec 31, 2021
  • participants needed
  • sponsor
    Karolinska Institutet
Updated on 23 January 2021



Women with unwanted pregnancy having a medical abortion and fulfilling inclusion and without exclusion criteria and opting for IUC as post abortion contraception. The medical abortion will be carried out according to the Swedish national evidence based guidelines.


Randomized to insertion of IUC within 48 hours after medical abortion.


Randomized to insertion of IUC at the time of a follow-up visit scheduled 2 to 4 weeks after the abortion according to routine care.


Evaluation of use of IUC, feasibility, safety, compliance, and acceptability of immediate insertion of IUC 0 to 48 hours after medical abortion compared with delayed IUC insertion at 2 to 4 weeks post abortion. The primary outcome measure will be the use of IUC at 6 months in both groups evaluated by telephone calls/emails follow up.

Time plan: Planning: -March 2018 Study start: May 2018 End of recruitment: April 2020 Last patient Last visit April 2021 Analysis: 2021 Report of primary outcome and Safety: 2021


Today 90 percent of terminations of pregnancy are medical abortions. Approximately 33 000 medical abortions are performed in Sweden each year and 20-30 percent of these women opt for IUC as post abortion contraception. Thus, the results of this study potentially affect at least 6600-9900 women every year in Sweden alone. A disadvantage with medical abortion compared with surgical abortion is the standard practice of delayed insertion of IUC. It has been shown that 42 percent of women scheduled for delayed insertion after surgical abortion did not return for the follow up and IUC insertion.(5) This problem is common also in medical abortion practice. Immediate insertion could lead to insertion rates close to 100 percent. However, this practice has not been studied for medical abortion.

The background for this trial is the belief that a higher rate of insertion of IUC, perhaps close to 100 percent, within 48 hours after medical abortion, can compensate more than well for a potentially higher rate of expulsion at immediate insertion. A clinically significant difference in IUC use at six months following the medical abortion of at least 20 percent is expected.

This large multicenter, randomized, patient centered clinical trial will investigate the effectiveness, feasibility, continued use, safety and acceptability of immediate insertion of intrauterine contraception within 0-48 hours after a completed medical abortion when compared to delayed IUC insertion at 2-4 weeks post abortion which is current practice.

Aim To study use, safety and patient acceptability of intrauterine contraception after immediate insertion compared with standard insertion 2-4 weeks post medical abortion at 3, 6 and 12 months post abortion.


Mirena (LNG-IUS 52mg), Kyleena (LNG-IUS 19.5mg), Jaydess (LNG-IUS 13.5 mg), NovaT (Cu-IUD, medical device, but due to use outside indication it is included in this application)


Open label, randomized, controlled, multicenter study. Phase III (therapeutic confirming).

Primary objective:

To study if immediate insertion of intrauterine contraception is superior to insertion at 2-4 weeks post abortion with regard to number of women using IUC as contraception at 6 months post abortion.


The proportion of women in each group (immediate or delayed) using IUC as contraception at 6 months post abortion (use vs non-use).

Secondary objectives:

To study if immediate insertion of intrauterine contraception is non-inferior to delayed insertion with regard to safety and acceptability.

Condition Contraceptive usage NOS
Treatment Immediate insertion
Clinical Study IdentifierNCT03603145
SponsorKarolinska Institutet
Last Modified on23 January 2021


Yes No Not Sure

Inclusion Criteria

Is your age greater than or equal to 18 yrs?
Are you female?
Do you have Contraceptive usage NOS?
Do you have any of these conditions: Do you have Contraceptive usage NOS??
pelvic or genital infection, cervicitis, immunocompromised women, untreated cervical dysplasia, neoplasia in cervix or uterus, acute liver disease or hepatic neoplasia, migraine or other very severe headache, icterus, high uncontrolled blood pressure, serious arterial disease i.e. stroke or myocardial infarction, acute venous thrombosis

Exclusion Criteria

Contraindication for medical abortion or
Contraindication for IUC (contraindications may be present for LNG-IUSs but the woman may still choose a Cu-IUD and thereby enter the study)
inability to give informed consent
Septic abortion
Known hypersensiblity/allergy to levonorgestrel or any of the substances added to the LNG-IUS
Known abnormal uterine cavity
Abortion associated bleeding > 1000ml
Uterine atony postabortion
Placental retention
Therapeutic antibiotic treatment during abortion, (antibiotics used only as prophylaxis is accepted)
History of breast cancer
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