Please select the eligibility criteria that correspond to the clinical trial below.
Title: N/A
Brief Summary: The purpose of this study is to assess the safety and efficacy of CDB-2914 in comparison to levonorgestrel for preventing pregnancy up to 5 days after unprotected sexual intercourse.


Options:
A: Inclusion Criteria:

* All women who delivers in the obstetric intent to breast-feed.
* Eligible participants should have been planning of birth spacing

Exclusion Criteria:

* Women refusal to participate in the study
* Women planned to use a method of contraception other than LAM
* Anticipation of difficulty of subsequent communication with the woman
B: Inclusion Criteria:

* Menstruating women at least 18 years old;
* Give voluntary, written informed consent, and agree to observe all study requirements;
* Request emergency contraception within 72 hours (3 days) after unprotected coitus, as defined by lack of contraceptive use, or condom breakage (including condoms lubricated with spermicide) or other barrier contraceptive method failure;
* Reports that all acts of unprotected coitus during the current cycle are within 72 hours prior to enrollment;
* Willing to abstain from further acts of unprotected intercourse during that cycle;
* History of regular menstrual cycles (mean length of 24-42 days with intra-individual variation of ±5 days);
* At least one normal menstrual cycle (2 menses) post delivery or abortion;
* If subject recently discontinued hormonal contraception, one normal menstrual cycle (2 menses) must have been completed before entry in the study
* For women with a recent history of Depo Provera use, the most recent injection must be at least 3 months before study entry and the subject must have had at least one normal menstrual cycle (2 menses);
* Available for follow-up for at least the next four weeks.

Exclusion Criteria:

* Currently pregnant (positive high-sensitivity urine pregnancy test);
* pregnant or breast-feeding within the past two months;
* use of hormonal methods of contraception during the current or previous two cycles;
* current user of IUD;
* tubal ligation;
* partners with history of vasectomy;
* unsure about the date of the last menstrual period (+3 days);
* irregular menstrual cycles as defined in the inclusion criteria;
* nausea and vomiting within the previous two weeks;
* impaired hypothalamic-pituitary-adrenal reserve or oral glucocorticoid replacement therapy in the last year.

Subjects cannot be currently enrolled in any other investigational trial or re-enrolled in this study.
C: Inclusion Criteria:1. Between 18-35 years old

2. In need of EC (had unprotected intercourse within 120 hours - 5 days)

3. Desire to prevent pregnancy for 1 year

4. Fluent in English and/or Spanish

5. Have a regular menstrual cycle (24-35 days)

6. Know their last menstrual period (+/-3 days)

7. Be willing to comply with the study requirements

8. Participants current preferred phone number must be functioning at the time of study entry and will be tested prior to enrollment

-

Exclusion Criteria:

* 1. Current pregnancy

  2. Breastfeeding

  3. Intrauterine infection within the past 3 months

  4. Sterilization

  5. Already have an IUD or contraceptive implant (Implanon) in place

  6. Vaginal bleeding of unknown etiology

  7. Known Gonorrhea or Chlamydia infection in the last 30 days (unless successfully treated at least 7 days prior to study entry)

  8. Allergy to LNG (for LNG IUD patients)

  9. Allergy to copper or Wilson's disease (for Copper IUD patients)

  10. Known abnormalities of the uterus that distort the uterine cavity
D: Inclusion Criteria:

* women 16 or older in UK(except Northern Ireland) sites, 17 years or more in Northern Ireland (UK) and 18 years or more in Ireland and US
* present within 120 hours of unprotected intercourse
* regular menstrual cycles
* No current use of hormonal contraception
* Willing to not use hormonal methods of contraception until study completion
* At least one complete menstrual cycle (2 menses) post miscarriage, delivery or abortion
* For women who present more than 72 hours after intercourse, decline the insertion of an Intra Uterine Device for emergency contraception
* Able to provide informed consent
* Willing to abstain from further acts of unprotected intercourse until study completion

Exclusion Criteria:

* One or more acts of unprotected intercourse more than 120 hours
* current or recent use of hormonal methods of contraception
* currently pregnant or breastfeeding
* tubal ligation or current use of IUD
* Use of hormonal emergency contraception since last menstrual period
* Current use of IUD
* Tubal ligation
* Partner with a vasectomy
* Unsure about the date of the last menstrual period
* Severe asthma insufficiently controlled by oral glucocorticoid
* Hypersensitivity to the active substance levonorgestrel or any of the excipients of the drug products used in the study

Answer: D