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Dydrogesterone Versus Intravaginal Progesterone in the Luteal Phase Support

Oral Dydrogesterone Versus Vaginal Progesterone Gel in the Luteal Phase Support: Randomized Controlled Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01178931
Enrollment
853
Registered
2010-08-10
Start date
2010-10-31
Completion date
2013-12-31
Last updated
2014-01-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Luteal Phase Defect

Keywords

IVF, luteal phase support, oral progesterone, vaginal progesterone, pregnancy rate, safety, tolerability

Brief summary

The purpose of this study is to compare efficacy and tolerability of the dydrogesterone and the vaginal progesterone, used for luteal phase support. (Initial start date was January 2009 but not for patients' recruitment only for paper work, documents, team organization, statistical pre-work actions and to gain the official approval of Institutional Review Board. The recruitment started in October 2010 and continued until October 2013.)

Detailed description

The use of gonadotropin-releasing hormone (GnRH) agonists in the ovarian stimulation, which prevents a premature surge of luteal hormone (LH), ultimately leads to suppression of the pituitary gland and high levels of estrogen observed during induced cycles result in inhibiting effect on the implantation of human embryos. The luteal support in in-vitro-fertilization (IVF) cycles can be prolonged using human chorion gonadotropin(hCG) and/or progesterone. Since it has been noted that the use of hCG was related with higher risks of the onset of ovarian hyperstimulation syndrome (OHSS), progesterone is nowadays a product of choice in luteal support. Currently vaginal progesterone is widely used, since the classic oral progesterone results in low bioavailability and lower pregnancy rate and the intramuscular progesterone (IM-P) daily injections are painful and may cause abscesses, inflammatory reactions and local soreness. However, standard protocol for luteal phase support has not been established (i.e. optimal dosage, route or duration). Dydrogesterone is a retroprogesterone with good oral bioavailability. Oral administration is clear advantage, due to expected higher patient compliance and better tolerability than currently used vaginal or IM-P. We hypothesize that dydrogesterone has the same efficacy as vaginal progesterone but better tolerability due to less side effects.

Interventions

oral-2x10mg

vaginal-1x90mg

Sponsors

University of Zagreb
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 45 Years
Healthy volunteers
No

Inclusion criteria

* routine ovulation induction protocol with GnRH agonist * less than three prior IVF cycles * at least three aspirated oocytes * BMI \<35 kg/m2 * age \<45 years

Exclusion criteria

* history of dysfunctional uterine bleeding * acute urogenital disease * recurrent miscarriage * previous allergic reactions to a progesterone products

Design outcomes

Primary

MeasureTime frameDescription
Ongoing pregnancy rate12 weeksOngoing pregnancy rate is defined by the presence of gestational sac(s) with viable fetal heart beats at 12 weeks' gestation by transvaginal ultrasound.

Secondary

MeasureTime frameDescription
Number of participants with adverse events10 weeksThe side effects included the occurrence of headache, somnolence, nausea, abdominal pain, bloating, dizziness, headache, breast fullness, perineal irritation, vaginal discharge and bleeding, interference with coitus.
Satisfaction10 weeksSatisfaction score is determinate on the 5-point level scale with 1 being absolutely satisfied and 5 being absolutely dissatisfied and tolerability by yes and now answers regarding side effects that the supplements could cause.

Countries

Croatia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 19, 2026