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CompletedNCT05198141letrezoleUpdated Jan 20, 2022

Evaluation of Different Doses of Letrozole in Ectopic Pregnancy

A Phase 4 interventional study of Letrozole tablets and laparoscopic salpingectomy in Ectopic Pregnancy, sponsored by Zagazig University. Completed at 1 site in Egypt. Open to female participants aged 19 Years to 35 Years. Per ClinicalTrials.gov, last updated 2022-01-20.

Sponsored by Zagazig University · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year after the study started (first participant enrolled Dec 2020, registered Jan 2022).
Phase
Phase 4
Study type
Interventional
Enrollment
60
Allocation
Non-randomized
Ages
19 Years to 35 Years
Sex
Female
01

Study summary

The utilization of letrozole at a daily dose of 10 mg for medical treatment of ectopic pregnancy considerably has a high success rate without imposing any serious side effects compared to daily 5mg letrozole.

Read the detailed description

Letrozole, an aromatase inhibitor, has recently been introduced as favorable medical treatment for ectopic pregnancy. We aimed at evaluating the effects of different doses of letrozole for induction of abortion Sixty patients with undisturbed ectopic pregnancy were classified into three equal groups. Group I: The control group that contained women who were undergoing laparoscopic salpingectomy, Group II: Patients who received letrozole (5 mg d-1) for 10 d, and Group III: Patients who received letrozole (10 mg d-1) for 10 d. After that, the human chorionic gonadotropin (β-hCG) levels were determined for the first day and after 11 d of treating. letrozole (10 mg d-1) markedly reduced the receptors of estrogen and progesterone, and subsequent vascular endothelial growth factor signals, resulting in marked apoptosis in the placenta tissue. The utilization of letrozole at a dose of 10 mg d-1 for inducement of abortion typically results in a substantial high-successful rate without any severe side effects.

02

Conditions studied

  • Ectopic Pregnancy

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Keywords

  • LETREZOLE
  • Ectopic pregnancy
  • Induced abortion
03

In context

Pregnancy, Ectopic

83 studies on the registry are indexed under Pregnancy, Ectopic; 21 are open to participants now.

This study's enrollment of 60 is below the median of 100 across 43 interventional studies indexed under Pregnancy, Ectopic.

Browse Pregnancy, Ectopic studies →

Lead sponsor

Zagazig University is the lead sponsor of 459 studies on the registry; 77 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
19 Years to 35 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Diagnosed ectopic pregnancy was by
  • Absence of an intrauterine gestational sac on vaginal ultrasound Coupled with
  • β-hCG titers beyond the discrimination zone of at least 2,000 milli-International units (mIU/m).

Exclusion criteria

Exclusion Criteria:

  • Patients had for letrozole
  • Patients with any systemic disease ( diabetes, hypertension, ....)
  • Patients with b-hCG levels >3,000 mIU/mL
  • Patients with level \<10 g/dL,
  • Patients with count \<150,000/mL,
  • Patients with elevated liver enzymes,
  • Patients with elevated blood urea, or serum creatinine
  • The presence of a fetal heartbeat in a gestational sac detected outside the uterine cavity
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
60 participants (actual)

Study arms

  • Active comparator
    Control group I (GI)

    Patients who were undergoing surgical treatment

    Procedure: laparoscopic salpingectomy

  • Experimental
    low dose letrozole group II (GII)

    patients who were medically treated with 5 mg of letrozole

    Drug: Letrozole tablets

  • Experimental
    High dose letrozole group (GIII)

    patients who were medically treated with 10 mg of letrozole using

    Drug: Letrozole tablets

Interventions

  • GI: Patients who were undergoing laparoscopic salpingectomy GII: patients who medically treated with 5 mg d-1 of letrozole using two tablets (2.5 mg of Femara) every day for 10 d GIII patients who medically treated with 10 mg d-1 of letrozole using four tablets (2.5 mg of Femara) every day for 10 d (group III)

    Also known as: Femara

  • Procedurelaparoscopic salpingectomy

    laparoscopic salpingectomy

06

What researchers measure

Primary outcomes

  1. β-hCG level

    A quantitative human chorionic gonadotropin

    Time frame: The β-hCG levels were assessed on the 1st of treatment

  2. β-hCG level

    A quantitative human chorionic gonadotropin

    Time frame: The β-hCG levels were assessed on the 11th day of treatment

Secondary outcomes

  1. Complete blood count (CBC)

    Complete blood count

    Time frame: Assessed on the 1st day of treatment

  2. Alanine Amino Transferase (ALT)

    Liver enzyme

    Time frame: Assessed on the 1st and 11th day of treatment

  3. Aspartate aminotransferase (AST)

    Liver enzyme

    Time frame: Assessed on the 1st and 11th day of treatment

  4. Serum creatinine

    Renal function test

    Time frame: Assessed on the 1st and 11th day of treatment

  5. Blood urea

    Renal function test

    Time frame: Assessed on the 1st and 11th day of treatment

  6. Complete blood count (CBC)

    Complete blood count

    Time frame: Assessed on the 11th day of treatment

  7. Alanine Amino Transferase (ALT)

    Liver enzyme

    Time frame: Assessed on the 11th day of treatment

  8. Aspartate aminotransferase (AST)

    Liver enzyme

    Time frame: Assessed on the 11th day of treatment

  9. Serum creatinine

    Renal function test

    Time frame: Assessed on the 11th day of treatment

  10. Blood urea

    Renal function test

    Time frame: Assessed on the 11th day of treatment

07

Study locations

1 site
  • Mohamed ALI Alabiad
    Zagazig, Sharkia 14150, Egypt
08

References and documents

Individual participant data

Plan to share: Yes — Table Statistical analysis Master sheet raw data (excel sheet)

Supporting information: Study protocol, Statistical analysis plan, Informed consent form

Time frame: the data will become available after one month from the approval and will be available for three months

Access criteria: you can send a Data request email to Dr: Mohamed at drno99@yahoo.com

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 20, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05198141
Lead sponsor
Zagazig University
Responsible party
Mohamed Ali Alabiad, MD (Principal Investigator, Zagazig University) — Principal investigator
First posted
Jan 20, 2022
Start date
Dec 15, 2020
Primary completion
Nov 20, 2021
Completion
Jan 1, 2022
Last update
Jan 20, 2022

Study contacts

Ahmed I Heraiz, MD
principal investigator · Zagazig University

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Letrozole

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