- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT02408692
Emergency Contraception and Body Weight: Pilot Study
Studieöversikt
Status
Betingelser
Intervention / Behandling
Detaljerad beskrivning
To determine if differences exist in the pharmacokinetics (PK) of levonorgestrel-based emergency contraception (LNG-EC) in obese and normal body mass index (BMI) users and test whether doubling the dose of LNG-EC in obese women increases total and free LNG serum concentrations.
We enrolled healthy, reproductive-age women with obese and normal BMIs received 1.5 mg LNG orally and then in a subsequent menstrual cycle, the obese group also received 3 mg LNG. Total and free LNG PK parameters were obtained via serum samples through an indwelling catheter at 0, 0.5, 1, 1.5, 2, and 2.5 h. The primary outcome was the difference in total and free LNG concentration maximum (Cmax) between ECx1 and ECx2 in the obese group.
Studietyp
Inskrivning (Faktisk)
Fas
- Fas 4
Kontakter och platser
Studieorter
-
-
Oregon
-
Portland, Oregon, Förenta staterna, 97239
- Oregon Health & Science University
-
-
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
Inclusion Criteria:
- Subjects are between the ages of 18 and 35
- Subjects are in good general health
- Subjects have regular menstrual cycles (between 21 and 35 days)
- Subjects are willing to use condoms (if you are sexually active with a male partner), subjects are willing to not have sex with men during the study, or subjects have had a tubal ligation (or have a partner who has had a vasectomy) or subjects have a copper intrauterine device (IUD).
Exclusion Criteria:
- Metabolic disorders including uncontrolled thyroid dysfunction and Polycystic Ovarian Syndrome
- Impaired liver or renal function
- Actively seeking or involved in a weight loss program (must be weight stable)
- Pregnancy, breastfeeding, or seeking pregnancy; recent (8 week) use of hormonal contraception
- Current use of drugs that interfere with metabolism of sex steroids
- Smokers.
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Övrig
- Tilldelning: Icke-randomiserad
- Interventionsmodell: Parallellt uppdrag
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
|
Aktiv komparator: Normal BMI ECx1
5 normal weight women (BMI<25 kg/m2) taking 1.5mg LNG
|
At the first treatment visit, all women will be given the study drug (1.5 mg of levonorgestrel) and several blood samples will be taken over 2.5 hours).
After this visit, women with a BMI of <25 kg/m2 will have completed study participation.
Andra namn:
|
|
Aktiv komparator: Obese BMI ECx1
5 obese women (BMI >30 kg/m2) taking 1.5mg LNG
|
At the first treatment visit, all women will be given the study drug (1.5 mg of levonorgestrel) and several blood samples will be taken over 2.5 hours).
After this visit, women with a BMI of <25 kg/m2 will have completed study participation.
Andra namn:
|
|
Aktiv komparator: Obese BMI ECx2
5 obese women (BMI >30 kg/m2) taking 3mg LNG
|
At the first treatment visit, all women will be given the study drug (1.5 mg of levonorgestrel) and several blood samples will be taken over 2.5 hours).
For women with a BMI of 30kg/m2 and greater, one additional visit will be required and study drug (3 mg of levonorgestrel) will be given and several blood samples will be taken over 2.5 hours)
Andra namn:
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Maximum Serum Concentration Between Normal and Obese BMI Women Ingesting 1.5mg Levonorgestrel
Tidsram: Follicular phase of menstrual cycle and PK sampling at 0, 0.5, 1, 1.5, 2, 2.5
|
Pharmacokinetic sampling at 0, 0.5, 1, 1.5, 2, and 2.5 hours were performed after ingestion of 1.5mg of levonorgestrel
|
Follicular phase of menstrual cycle and PK sampling at 0, 0.5, 1, 1.5, 2, 2.5
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Maximum Serum Concentration Between Obese BMI Women Ingesting 1.5mg of Levonorgestrel and Then the Same Obese BMI Women Ingesting 3mg Levonorgestrel
Tidsram: Follicular phase of menstrual cycle
|
Pharmacokinetic sampling at 0, 0.5, 1, 1.5, 2, and 2.5 hours were performed after ingestion of 3mg of levonorgestrel
|
Follicular phase of menstrual cycle
|
Samarbetspartners och utredare
Samarbetspartners
Utredare
- Huvudutredare: Alison Edelman, MD, MPH, Oregon Health and Science University
Publikationer och användbara länkar
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- OHSU IRB 11419
Plan för individuella deltagardata (IPD)
Planerar du att dela individuella deltagardata (IPD)?
IPD-planbeskrivning
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