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NCT Number: NCT06928844

Role of Low Dose Injectable Progesterone in Triggering Ovulation

The aim of this study is to evaluate the role of low dose injectable progesterone in triggering ovulation.

Recruiting

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Key information

Age range

20 year–35 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

Teaching Hospitals and Institutes

Cairo, Egypt

Location status: Recruiting

Location contact

Abeer A El Shabasi, MD

CONTACT

[email protected]

00201223331182

Eslam M El-Sayed, MD

PRINCIPAL_INVESTIGATOR

Mohamed A Raslan, MD

PRINCIPAL_INVESTIGATOR

Mona A Baghdadi, MD

PRINCIPAL_INVESTIGATOR

Sayida I El-Dessouki, MD

PRINCIPAL_INVESTIGATOR

About this study

Infertility affects approximately 10-15% of couples attempting pregnancy, with no readily identifiable cause found in 15-30% of these patients, resulting in a diagnosis of unexplained infertility.

Kol and Itskovitz-Eldor stated that when using GnRH agonist to trigger ovulation in IVF cycles, the LH surge is associated with a rapid rise of progesterone and the attainment of peak E2 levels through the first 12 h after GnRH agonist administration which is followed by a temporary suppression of progesterone biosynthesis and a gradual drop in E2 levels during the 24 h before follicle aspiration. After oocyte retrieval, a second rise in progesterone and continuous fall in E2 are noted, reflecting transitions from follicular to luteal phase in ovarian steroidogenesis.

Letrozole (LE) is a nonsteroidal, highly selective oral aromatase inhibitor (AI) that inhibits the synthesis of oestrogen and increases the secretion of endogenous gonadotropin by diminishing negative feedback to stimulate ovulation. Currently, letrozole is widely used as an adjunct for IVF cycles.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age from 20 to 35 years.
  • Infertile women.
  • Basal follicle-stimulating hormone (FSH) level <10 mIU/ml.

Exclusion criteria

  • Poor ovarian reserve.
  • Immunological disease.
  • Endometriosis.
  • Uterine abnormality.
  • Body mass index (BMI) >30 kg/m2.
  • Endometrial thickness <8 or >12 mm on the day of triggering.

Treatment and study plan

Progesterone

Drug

Women will receive low dose progesterone 5 mg intramuscularly as a study group. (Letrozole 2.5 mg/day will be given from cycle day 3 onwards for only 5 days).

Placebo

Drug

Women will receive placebo as a control group. (Placebo 2.5 mg/day will be given from cycle day 3 onwards for only 5 days).

Primary outcomes

  1. Incidence of ovulation rates

    Time frame: 10-12 days of the menstrual cycle

    Incidence of ovulation rates will be recorded.

Secondary outcomes

  1. Follicle stimulating hormone (FSH)levels

    Time frame: 10-12 days of the menstrual cycle

    Follicle stimulating hormone (FSH) will be measured on day 3, day 8-10 and day 10-12 of the menstrual cycle, as well as the day of trigger and oocyte retrieval.

  2. Luteinizing hormone (LH)levels

    Time frame: 10-12 days of the menstrual cycle

    Luteinizing hormone (LH) will be measured on day 3, day 8-10 and day 10-12 of the menstrual cycle, as well as the day of trigger and oocyte retrieval).

  3. Estradiol (E2) levels

    Time frame: 10-12 days of the menstrual cycle

    Estradiol (E2) will be measured on day 3, day 8-10 and day 10-12 of the menstrual cycle, as well as the day of trigger and oocyte retrieval.

  4. Progesterone levels

    Time frame: 10-12 days of the menstrual cycle

    Progesterone levels will be measured on day 3, day 8-10 and day 10-12 of the menstrual cycle, as well as the day of trigger and oocyte retrieval.

  5. Number of oocytes

    Time frame: 8 days of the menstrual cycle

    Number of oocytes will be recorded. Ovulation monitoring will be done from the last day of the cycle until ovulation occurs approximately in the middle of the cycle.

  6. Mature oocytes

    Time frame: 16 days of the menstrual cycle

    Mature oocytes will be recorded.

  7. Clinical pregnancy rate.

    Time frame: One week late from the previous menstrual cycle

    Clinical pregnancy rate will be recorded.

  8. Biochemical pregnancy

    Time frame: 16 days of the menstrual cycle

    Biochemical pregnancy will be recorded through a blood pregnancy test on the date of the next menstrual period

  9. Early miscarriage rate

    Time frame: 16 days of the menstrual cycle

    Early miscarriage rate will be recorded.

Study contacts

Contact information is provided by the study sponsor or research team.

Abeer A El Shabasi, MD

CONTACT

[email protected]

00201223331182

Sponsors and collaborators

Lead sponsor

The General Authority for Teaching Hospitals and Institutes

Network

Registry information

Official study title

Role of Low Dose Injectable Progesterone in Triggering Ovulation: A Randomized Controlled Trial

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Apr 15, 2025
Registry last updated
Apr 16, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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