E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Prevention of unwanted pregnancy |
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E.1.1.1 | Medical condition in easily understood language |
Prevention of unwanted pregnancy |
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E.1.1.2 | Therapeutic area | Body processes [G] - Reproductive physiologi cal processes [G08] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To assess the contraceptive efficacy and safety of once a week mifepristone 50 mg. |
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E.2.2 | Secondary objectives of the trial |
To determine the side-effects and acceptability of once a week mifepristone 50 mg. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. no desire to become pregnant within the next 13 months 2. provision of signed and dated informed consent form for participation in the study 3. stated willingness to comply with all study procedures and availability for the duration of the study 4. female, aged 18-35 5. have a normal menstrual cycle of 25-35 days cycles which differ by no more than 3 days with less than 7 days of bleeding 6. at least one normal menstrual cycle after miscarriage or abortion and no abnormal blood loss 7. be willing to engage in at least three acts of penis-in-vagina sexual intercourse per month 8. be willing to use the study drug as the only method of contraception over the course of the study - if the potential participant is taking another contraceptive, they would have to stop and have one menstruation to be included in the trial 9. ability to take oral medication and be willing to adhere to the contraceptive regimen
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E.4 | Principal exclusion criteria |
1. current pregnancy 2. within 3 months of delivery 3. abnormal cervical smear or within year before 4. known infertility or subfertility 5. history of ectopic pregnancy 6. any previous or current malignancy including breast cancer 7. abnormal liver enzymes 8. irregularities in endometrium 9. retained products of conception after miscarriage or abortion 10. signs of endometritis 11. known allergic reactions to mifepristone 12. lactation 13. using high doses of corticosteroids or any drugs that may interact with mifepristone - these include hydantoins (e.g. phenytoin), barbiturates (e.g. phenobarbital), primidone, carbamazepine, rifampicin, oxcarbazepine, topiramate, rifabutin, felbamate, ritonavir, nelfinavir, griseofulvin and products containing St. John's wort (Hypericum perforatum) 14. treatment with another investigational drug 15. unable to comply with the trial protocol
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E.5 End points |
E.5.1 | Primary end point(s) |
1. Occurrence of pregnancy during treatment caused by method failure. 2. Proportion of women with endometrium thickness>15 mm, endometrium with irregular cystic appearance on US at baseline months 3, 6, months 9, months 13 and 2 months after end of treatment. 3. Proportion of women with ALAT, ASAT and bilirubin elevation three times above normal at baseline, months 3, months 6, months 9, months 13 and 2 months after end of treatment. 4. Proportion of women with adverse event / serious adverse event.
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
1. Occurrence of pregnancy during treatment caused by user failure. 2. Proportion of women with blood hormone levels abnormalities. 3. Proportion of women with anovulatory cycles. 4. Proportion of women with endometrial changes (PAEC) confirmed by biopsy at baseline, months 3, months 6, months 9 and 2 months after end of treatment. 5. Proportion of women with normal haemoglobin value at baseline, 3 months, 6 months, 9 months, 13 months and 2 months after end of treatment. 6. Mean value of quality of life questionnaire (EQ-5D-5L) at baseline, 3 months, 6 months, 9 months, 13 months and 2 months after end of treatment. 7. Proportion of women who uses antidepressants at baseline and during the study. 8. Proportion of women with dysmenorrhea (diary continued measurement) during the study. 9. Proportion of women with acne occurrence (diary continued reporting) during the study. 10. Proportion of women with side-effects (headache, nausea, breast pain, dry eyes) (diary continued reporting) during the study. 11. Mean weight changes at 3 months, 6 months, 9 months, 13 months and 2 months after end of treatment compared to baseline. 12. Proportion of women with vaginal bleeding (diary continued measurement) 13. Libido: mean value of Female Sexual Function Index (FSFI) at baseline, 3 months, 6 months, 9 months and 2 months after end of treatment.
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 1 |
E.8.3 |
Will this trial be conducted at a single site globally?
| No |
E.8.4 | Will this trial be conducted at multiple sites globally? | Yes |
E.8.6 Trial involving sites outside the EEA |
E.8.6.2 | Trial being conducted completely outside of the EEA | Yes |
E.8.6.3 | Specify the countries outside of the EEA in which trial sites are planned |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.2 | In all countries concerned by the trial years | 3 |