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Management of Atypical Endometrial Hyperplasia and Endometrial Carcinoma Using Megestrol Acetate

Prospective Trial of Conservative Management of Atypical Endometrial Hyperplasia and Well to Moderately Differentiated Endometrial Carcinoma Using Megestrol Acetate

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00483327
Enrollment
31
Registered
2007-06-07
Start date
2007-06-30
Completion date
2013-10-31
Last updated
2018-04-04

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

Conditions

Atypical Endometrial Hyperplasia, Endometrial Carcinoma

Keywords

Well, Moderately, Differentiated

Brief summary

The purpose of this trial is to study the efficacy, toxicity, and tolerability of a standard hormonal regimen of Megestrol Acetate (Megace) in the treatment of Atypical Endometrial Hyperplasia or well to moderately differentiated endometrial carcinoma.

Detailed description

The trial's objectives are to study the efficacy, defined as complete pathologic resolution of disease, of a standard hormonal regimen with the progestin Megace for the treatment of atypical endometrial hyperplasia or well or moderately differentiated endometrial carcinoma in women desiring conservative medical management of these conditions in the Women's Cancer Program at the NYU School of Medicine and at the Bellevue Gynecologic Oncology clinics. The major endpoint is pathologic complete response (pCR). For the purposes of this study, patients will be reevaluated for response every 12 weeks until complete response. Response will be assessed within 4 weeks of completion of 12 weeks of Megace, by endometrial biopsy or dilation and curettage (D&C)/hysteroscopy. An endometrial biopsy is sufficient to document progressive, stable disease or partial response. A D&C is necessary to confirm complete response. Patients whose disease has completely responded will discontinue treatment and be encouraged to pursue fertility. Those not desiring immediate fertility will be placed on low dose oral contraceptive pills for at least 6 months. Patients who have had either a partial response or stable disease will be recounseled and offered continued medical management or surgical therapy. Patients whose disease has progressed will be offered definitive surgical management. Those patients declining surgery will still be followed on study.

Interventions

DRUGMegestrol Acetate

Sponsors

NYU Langone Health
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Women with a diagnosis of atypical endometrial hyperplasia or G1 or G2 endometrial carcinoma confirmed by an New York University (NYU) pathologist desiring medical management will be eligible. The diagnosis may be obtained either by endometrial biopsy or D&C. If diagnosis has been made outside of NYU, slides must be available for review. * Age \> = 18 years. * Life expectancy of greater than 12 months. * Gynecologic Oncology Group (GOG) performance status score of 0, 1 or 2 * Patients must have normal organ and marrow function as defined below: * leukocytes \> = 3,000/mcL * platelets \> = 100,000/mcL * total bilirubin within normal institutional limits * AST(SGOT)/ALT(SGPT) no greater than 2.5 X institutional upper limit of Normal * glucose \< 200 mg/dl * creatinine within normal institutional limits OR * creatinine clearance \> = 60 mL/min/1.73 m2 for patients with creatinine levels above institutional normal * Eligibility of patients receiving any medications or substances known to affect or with the potential to affect the activity or pharmacokinetics of Megace will be determined following review of their case by the Principal Investigator. * The effects of Megace on the developing human fetus at the recommended therapeutic dose are unknown. For this reason and because Megace is known to be teratogenic, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately. * Ability to understand and the willingness to sign a written informed consent document.

Exclusion criteria

* Patients with a histological diagnosis of clear cell, papillary serous or poorly differentiated (G3) endometrial carcinoma. * Patients with cancer have an MRI showing evidence of extrauterine spread or myometrial invasion. * Presence of US findings suspicious for ovarian malignancy, unclear endometrial primary or recurrent endometrial cancer. * Patients receiving other investigational agents. * Patients with a history of a previous thrombotic event, known thrombophilic condition or poorly controlled diabetes. * Patients with a history of breast cancer or other hormonally responsive malignancy. * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements. * Pregnant women are excluded from this study because Megace has the potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with Megace, breastfeeding should be discontinued if the mother is treated with Megace.

Design outcomes

Primary

MeasureTime frameDescription
Best Pathologic Responsesup to 24 monthsPatients are evaluated every 12 weeks while on treatment. The response is evaluated by endometrial biopsy or dilation and curettage (D&C)/hysteroscopy. Complete response (CR) is defined as endometrial sampling is read as normal or proliferative endometrium. Partial response (PR) is defined as the biopsy sample has changed on the endometrial evaluation scale by at least one level towards normal. Stable disease (SD) is defined as no change in pathology between the index and follow-up sample. Progressive disease (PD) is defined the follow-up sample has changed towards neoplasia on the endometrial evaluation scale by at least one level or imaging is concerning for myometrial invasion or extrauterine disease such that conservative management is no longer medically appropriate.

Secondary

MeasureTime frameDescription
Toxicity and Tolerabilityup to 36 monthsPatients with adverse events (AEs) which were possibly, probably, or definitely related to the treatment. AEs were evaluated according to Common Terminology Criteria for Adverse Events (CTCAE) 3.
Duration of Responseup to 4 yearsFor each patient, assessed every 12 weeks during treatment and every 6 months during follow-up.
Number of Women Who Became Pregnantup to 3 years after the treatment for each patient

Countries

United States

Participant flow

Recruitment details

From May 2007 to April 2012, total 31 patients were recruited to the study from New York University medical center and its affiliated hospitals.

Pre-assignment details

One patient withdrew before the start of the treatment; ony 30 patients started the treatment.

Participants by arm

ArmCount
Megestrol Acetate
80 mg (2 tablets) orally at breakfast, 80 mg at dinner for at least 12 weeks and up to 2 years.
31
Total31

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event1
Overall StudyLost to Follow-up4
Overall StudyPatient Non Compliance2
Overall StudyWithdrawal by Subject3

Baseline characteristics

CharacteristicMegestrol Acetate
Age, Customized
18-24 years
1 participants
Age, Customized
25-34 years
12 participants
Age, Customized
35-44 years
12 participants
Age, Customized
45-54 years
4 participants
Age, Customized
55-64 yeras
2 participants
Histological Diagnosis
Atypical endometrial hyperplasia
20 participants
Histological Diagnosis
FIGO Grade 1 endometrioid carcinoma
9 participants
Histological Diagnosis
FIGO Grade 2 endometrioid carcinoma
2 participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
6 Participants
Race (NIH/OMB)
Black or African American
4 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
Race (NIH/OMB)
White
18 Participants
Region of Enrollment
United States
31 participants
Sex: Female, Male
Female
31 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
29 / 30
serious
Total, serious adverse events
1 / 30

Outcome results

Primary

Best Pathologic Responses

Patients are evaluated every 12 weeks while on treatment. The response is evaluated by endometrial biopsy or dilation and curettage (D&C)/hysteroscopy. Complete response (CR) is defined as endometrial sampling is read as normal or proliferative endometrium. Partial response (PR) is defined as the biopsy sample has changed on the endometrial evaluation scale by at least one level towards normal. Stable disease (SD) is defined as no change in pathology between the index and follow-up sample. Progressive disease (PD) is defined the follow-up sample has changed towards neoplasia on the endometrial evaluation scale by at least one level or imaging is concerning for myometrial invasion or extrauterine disease such that conservative management is no longer medically appropriate.

Time frame: up to 24 months

Population: Patient who were able to complete at least one full course (12 weeks) of treatment

ArmMeasureGroupValue (NUMBER)
Megestrol AcetateBest Pathologic ResponsesPathologic CR17 participants
Megestrol AcetateBest Pathologic ResponsesUnconfirmed CR4 participants
Megestrol AcetateBest Pathologic ResponsesPR6 participants
Megestrol AcetateBest Pathologic ResponsesSD1 participants
Megestrol AcetateBest Pathologic ResponsesPD2 participants
Secondary

Duration of Response

For each patient, assessed every 12 weeks during treatment and every 6 months during follow-up.

Time frame: up to 4 years

Population: The original PI for this study is no longer at our institution. Additionally, co-investigator has stated that this data was not collected and therefore not analyzed. This information is not available for reporting as it does not exist.

Secondary

Number of Women Who Became Pregnant

Time frame: up to 3 years after the treatment for each patient

Population: Only 7 participants in the trial pursued pregnancy.

ArmMeasureValue (NUMBER)
Megestrol AcetateNumber of Women Who Became Pregnant3 participants
Secondary

Toxicity and Tolerability

Patients with adverse events (AEs) which were possibly, probably, or definitely related to the treatment. AEs were evaluated according to Common Terminology Criteria for Adverse Events (CTCAE) 3.

Time frame: up to 36 months

Population: Any patient with at least one dose of treatment.

ArmMeasureGroupValue (NUMBER)
Megestrol AcetateToxicity and TolerabilityBloating4 participants
Megestrol AcetateToxicity and TolerabilityInsomnia4 participants
Megestrol AcetateToxicity and TolerabilityFatigue6 participants
Megestrol AcetateToxicity and TolerabilityWeight gain9 participants
Megestrol AcetateToxicity and TolerabilityMood alterations4 participants
Megestrol AcetateToxicity and TolerabilityHeadache5 participants
Megestrol AcetateToxicity and TolerabilityThromboembolic event0 participants
Megestrol AcetateToxicity and TolerabilityCarpal tunnel syndrome1 participants
Megestrol AcetateToxicity and TolerabilityWeakness1 participants
Megestrol AcetateToxicity and TolerabilityVaginal Spotting6 participants
Megestrol AcetateToxicity and TolerabilityVaginal Pain1 participants
Megestrol AcetateToxicity and TolerabilityNausea6 participants
Megestrol AcetateToxicity and TolerabilityAbdominal Pain2 participants
Megestrol AcetateToxicity and TolerabilityConstipation3 participants
Megestrol AcetateToxicity and TolerabilityIncreased Appetite4 participants
Megestrol AcetateToxicity and TolerabilityDepression3 participants
Grade 3Toxicity and TolerabilityAbdominal Pain0 participants
Grade 3Toxicity and TolerabilityNausea0 participants
Grade 3Toxicity and TolerabilityWeakness0 participants
Grade 3Toxicity and TolerabilityInsomnia0 participants
Grade 3Toxicity and TolerabilityBloating0 participants
Grade 3Toxicity and TolerabilityFatigue0 participants
Grade 3Toxicity and TolerabilityVaginal Spotting0 participants
Grade 3Toxicity and TolerabilityWeight gain0 participants
Grade 3Toxicity and TolerabilityConstipation0 participants
Grade 3Toxicity and TolerabilityMood alterations0 participants
Grade 3Toxicity and TolerabilityVaginal Pain0 participants
Grade 3Toxicity and TolerabilityHeadache2 participants
Grade 3Toxicity and TolerabilityDepression0 participants
Grade 3Toxicity and TolerabilityThromboembolic event1 participants
Grade 3Toxicity and TolerabilityIncreased Appetite0 participants
Grade 3Toxicity and TolerabilityCarpal tunnel syndrome0 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026