Gonadotropin-releasing Hormone Agonist (GnRHa) Plus Letrozole In Young Women With Early Endometrial Cancer

NCT ID: NCT05247268

Last Updated: 2025-04-06

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

104 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-03-11

Study Completion Date

2027-09-10

Brief Summary

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To see if Gonadotropin-releasing hormone analogue (GnRHa) combined with aromatase inhibitors (AIs) will achieve better complete response rate than megestrol acetate or medroxyprogesterone acetate (MA/MPA) alone as fertility-sparing treatment for patients with early endometrial carcinoma.

Detailed Description

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This will be a multicenter randomized controlled study to evaluate the treatment effects and adverse events of GnRHa plus AIs compared with MA/MPA in primary EEC patients.In this study, young patients (18-45 years) diagnosed as EEC for the first time seeking for fertility preserving treatment at the Obstetrics and Gynecology Hospital of Fudan University were screened. Patients were randomly assigned (1:1) to GnRHa+letrozole group (triprorelin acetate, intramuscular injection of 3.75mg was given 4 weeks apart and the maximum use are 6 courses. letrozole, 2.5mg oral daily and no more than 24 weeks) or MA/MPA group (160 mg oral MA daily or 500 mg oral MPA daily).

Hysteroscopy will be performed every 3 months during treatment to evaluate the treatment effects. For patients with EEC, complete response (CR) is defined as the reversion of endometrial carcinoma to proliferative or secretory endometrium; partial response (PR) is defined as regression to simple or complex hyperplasia with or without atypia; Stable disease (SD) is defined as the persistence of the disease; and progressive disease (PD) is defined as the progression of endometrial lesions. Continuous therapies will be needed in PR, SD or PD.The primary endpoint was cumulative complete response (CR) rate at 16 weeks of treatment. The secondary endpoints were cumulative CR rate at 28weeks of treatment, adverse events, recurrent rate, pregnancy rate, effects on ovarian function and quality of life of patients.

Conditions

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Endometrial Neoplasm Malignant Stage I

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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GnRHa+letrozole

Patients will be stratified into BMI≥28kg/m2 group and BMI\<28kg/m2 group. Patients in BMI≥28kg/m2 or BMI\<28kg/m2 group will be randomly assigned (1:1) to GnRHa+letrozole group or MA/MPA group. Patients who will be assigned to GnRHa+letrozole group will receive triprorelin acetate (intramuscular injection of 3.75mg was given 4 weeks apart and the maximum use are 6 courses) plus letrozole (2.5mg oral daily and no more than 24 weeks). Then every 3 months, an hysteroscope will be used to evaluate the endometrial condition, and the findings will be recorded.

Group Type EXPERIMENTAL

Triprorelin Acetate

Intervention Type DRUG

Intramuscular injection of 3.75mg was given 4 weeks apart and the maximum use are 6 courses

Letrozole 2.5mg

Intervention Type DRUG

At a dosage of 2.5mg/day and no more than 24 weeks

MA/MPA

Patients will be stratified into BMI≥28kg/m2 group and BMI\<28kg/m2 group. Patients in BMI≥28kg/m2 or BMI\<28kg/m2 group were randomly assigned (1:1) to GnRHa+letrozole group or MA/MPA group.Patients assigned to MA/MPA group will receive MA/MPA (160 mg oral MA daily or 500 mg oral MPA daily).Then every 3 months, an hysteroscopy will be used to evaluate the endometrial condition, and the findings will be recorded.

Group Type ACTIVE_COMPARATOR

Megestrol Acetate 160 MG Oral Tablet

Intervention Type DRUG

At a dosage of 160 mg/day

Medroxyprogesterone Acetate 500 MG

Intervention Type DRUG

At a dosage of 500 mg/day

Interventions

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Megestrol Acetate 160 MG Oral Tablet

At a dosage of 160 mg/day

Intervention Type DRUG

Medroxyprogesterone Acetate 500 MG

At a dosage of 500 mg/day

Intervention Type DRUG

Triprorelin Acetate

Intramuscular injection of 3.75mg was given 4 weeks apart and the maximum use are 6 courses

Intervention Type DRUG

Letrozole 2.5mg

At a dosage of 2.5mg/day and no more than 24 weeks

Intervention Type DRUG

Other Intervention Names

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Megestrol Acetate Medroxyprogesterone Acetate Letrozole

Eligibility Criteria

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Inclusion Criteria

* Consent informed and signed
* Primarily have a confirmed diagnosis of early-stage endometrial cancer (endometrioid, grade I, without myometrial inva- sion) ) based upon endometrial biopsy, diagnostic curettage or hysteroscopy
* No signs of suspicious myometrial invasion or extrauterine metastasis by enhanced magnetic resonance imaging (MRI), enhanced computed tomography (CT) or transvaginal ultrasonography (TVUS)
* Have a strong desire for remaining reproductive function or uterus
* Have good compliance and follow-up conditions, and patients are willing to follow up in Obstetrics and Gynecology Hospital of Fudan University in time

Exclusion Criteria

* Pathologically confirmed as endometrial cancer with suspicious myometrial invasion or extrauterine metastasis
* Recurrent endometrial cancer
* Combined with severe medical disease or severely impaired liver and kidney function
* Patients with other types of endometrial cancer or other malignant tumors of the reproductive system; patients with breast cancer or other hormone- dependent tumors that cannot be used with progesterone
* Those who require hysterectomy or other methods other than conservative treatment with drugs
* Known or suspected pregnancy
* Contraindication for Medroxyprogesterone Acetate, Megestrol Acetate, Triprorelin Acetate, Letrozole or pregnancy
* Hormone treatment within 3 months before entering the trial;
* Acute severe disease such as stroke or heart infarction or a history of thrombosis disease
* Smoker(\>15 cigarettes a day)
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Peking Union Medical College Hospital

OTHER

Sponsor Role collaborator

Fudan University

OTHER

Sponsor Role lead

Responsible Party

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Xiaojun Chen

Prof.Dr.

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Obstetrics and Gynecology Hospital, Fudan University

Shanghai, , China

Site Status RECRUITING

Countries

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China

Facility Contacts

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Xiaojun Chen, PhD

Role: primary

862163455055

References

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Other Identifiers

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53211032

Identifier Type: -

Identifier Source: org_study_id

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