Metformin With the Levonorgestrel-Releasing Intrauterine Device for the Treatment of Complex Atypical Hyperplasia (CAH) and Endometrial Cancer (EC) in Non-surgical Patients

Overview[ - collapse ][ - ]

Purpose Purpose: This is an open label, single-arm, single-center study of the addition of metformin to standard levonorgestrel-releasing intrauterine device (LR-IUD) treatment of 30 evaluable non-surgical patients with either complex atypical hyperplasia (CAH; n=15) or grade 1 endometrial adenocarcinoma (EC; n=15). Participants:Women, over the age of 18 years, with biopsy-proven CAH/EC who are not candidates for surgical management, and therefore are planned to start standard of care treatment with the LR-IUD Procedures (methods): subjects will be given oral metformin therapy for 12 months, or until disease progression occurs (whichever occurs first), in addition to LR-IUD treatment. Serial endometrial biopsies will be performed, as per standard of care, to assess disease status.
ConditionComplex Atypical Hyperplasia
Endometrial Cancer
InterventionDrug: Metformin
PhaseN/A
SponsorUNC Lineberger Comprehensive Cancer Center
Responsible PartyUNC Lineberger Comprehensive Cancer Center
ClinicalTrials.gov IdentifierNCT02035787
First ReceivedJanuary 10, 2014
Last UpdatedJanuary 13, 2014
Last verifiedJanuary 2014

Tracking Information[ + expand ][ + ]

First Received DateJanuary 10, 2014
Last Updated DateJanuary 13, 2014
Start DateMarch 2014
Estimated Primary Completion DateMarch 2017
Current Primary Outcome MeasuresResponse rate [Time Frame: 12 months] [Designated as safety issue: No]percent of individuals achieving complete disease regression as defined by no evidence of microscopic viable hyperplasia or carcinoma on endometrial biopsy after 6 months of treatment compared to a base rate of 50%
Current Secondary Outcome Measuresadverse event measurement [Time Frame: 12 months] [Designated as safety issue: Yes]to categorize the type, severity and attribution of all recorded adverse events using CTCAE version 4.0.

Descriptive Information[ + expand ][ + ]

Brief TitleMetformin With the Levonorgestrel-Releasing Intrauterine Device for the Treatment of Complex Atypical Hyperplasia (CAH) and Endometrial Cancer (EC) in Non-surgical Patients
Official TitleMetformin With the Levonorgestrel-Releasing Intrauterine Device for the Treatment of Complex Atypical Hyperplasia (CAH) and Endometrial Cancer (EC) in Non-surgical Patients
Brief Summary
Purpose: This is an open label, single-arm, single-center study of the addition of metformin
to standard levonorgestrel-releasing intrauterine device (LR-IUD) treatment of 30 evaluable
non-surgical patients with either complex atypical hyperplasia (CAH; n=15) or grade 1
endometrial adenocarcinoma (EC; n=15).

Participants:Women, over the age of 18 years, with biopsy-proven CAH/EC who are not
candidates for surgical management, and therefore are planned to start standard of care
treatment with the LR-IUD

Procedures (methods): subjects will be given oral metformin therapy for 12 months, or until
disease progression occurs (whichever occurs first), in addition to LR-IUD treatment. Serial
endometrial biopsies will be performed, as per standard of care, to assess disease status.
Detailed Description
STUDY OBJECTIVES Primary Objective

-To compare the rate of CR at 6 months in non-surgical grade 1 EC and CAH patients receiving
metformin + LR-IUD to 50%

Secondary Objectives

- to estimate the rate of CR at 6 months separately in grade 1 EC and CAH patients
receiving metformin + LR-IUD

- to estimate the rate of CR at 12 months in non-surgical grade 1 EC and CAH patients
receiving metformin + LR-IUD

- to document patient adherence to long-term (≥3 months) metformin administration

- To describe safety of metformin + LR-IUD treatment

Exploratory Objectives

- To explore changes in cellular proliferation as measured by the marker, Ki-67, from
baseline to 6 months

- To explore association between the level of expression of the metformin transporter
proteins and key targets of the metformin/mTOR signaling pathway and CR status at 6
months

- To perform a comprehensive unbiased profiling of metabolites by analyzing the metabolic
"fingerprints" of the biofluids (i.e. serum and urine) and "footprints" of the tumor
tissue pre- and post- 6 months of metformin treatment

- To explore association between metabolic factors and metformin concentration levels in
tumor tissue/blood/urine and CR at 6 months

This is an open label, single-arm, single-center study of the addition of metformin to
standard levonorgestrel-releasing intrauterine device (LR-IUD) treatment of 30 evaluable
non-surgical patients with either complex atypical hyperplasia (CAH; n=15) or grade 1
endometrial adenocarcinoma (EC; n=15). Women, over the age of 18 years, with biopsy-proven
CAH/EC who are not candidates for surgical management, and therefore are planned to start
standard of care treatment with the LR-IUD, will be given oral metformin therapy for 12
months, or until disease progression occurs (whichever occurs first), in addition to LR-IUD
treatment. Serial endometrial biopsies will be performed, as per standard of care, to assess
disease status. We hypothesize that the addition of metformin to standard LR-IUD treatment
of CAH and grade 1 EC will result in a complete response (CR) rate at 6 months that is
significantly higher than 50% in a population of non-surgical candidates. In addition, we
plan to estimate CR rate at 6 months in CAH and EC separately, and in the group as a whole
at 12 months. We will also document the rate of patient adherence to long-term metformin
therapy.
Study TypeInterventional
Study PhaseN/A
Study DesignEndpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Condition
  • Complex Atypical Hyperplasia
  • Endometrial Cancer
InterventionDrug: Metformin
Metformin added to standard non-surgical treatment with levonorgestrel-Releasing Intrauterine Device.
Other Names:
glucophage
Study Arm (s)Experimental: Metformin
Metformin, 850 mg. twice daily.

Recruitment Information[ + expand ][ + ]

Recruitment StatusNot yet recruiting
Estimated Enrollment30
Estimated Completion DateMarch 2017
Estimated Primary Completion DateMarch 2016
Eligibility Criteria
Inclusion Criteria:

Subjects must meet all of the inclusion criteria to participate in this study:

- Histologically confirmed CAH or grade 1 EC

- Females age ≥ 18 years

- ECOG Performance Status 0 - 4

- Non-surgical candidates due to:

- Desire for fertility preserving treatment

- Unacceptable surgical risk as defined by:

oAmerican Society of Anesthesiologists Physical Status (ASA) ≥ 4 and/or Perioperative
Cardiac Risk > 5%(45) and/or Perioperative Respiratory Failure Risk > 5%(46)

AND

oIndependent medicine or cardiology pre-op consultation concluding 'high' surgical risk.

- Planned treatment with the LR-IUD for CAH or grade 1 EC by primary physician

- Women of childbearing potential (WOCBP) must have negative pregnancy test within 7
days of D1 of treatment

- Understand study design, risks, and benefits and have signed informed consent

Exclusion Criteria Any patient meeting any of the exclusion criteria at baseline will be
excluded from study participation.

- Evidence of renal dysfunction (Cr > 1.5mg/dL or Cr clearance < 60mL/m2) or liver
dysfunction (AST/ALT > 2x upper limit of normal (ULN))

- Currently receiving progestin therapy (local, topical, or systemic)

- Myometrial invasion >50% or evidence of nodal or metastatic disease on baseline MRI
(MRI only to be done for EC patients) or tumor size > 2cm on MRI or pelvic ultrasound

- Mixed histology including clear cell, serous, undifferentiated or sarcomatous
elements

- Prior or current use of metformin within the past 3 months

- History of hypersensitivity to metformin or history of discontinuation secondary to
attributed adverse effects

- Chronic (daily use for > 1 month) use of cimetidine (significant increase in
metformin concentration and risk of lactic acidosis)

- Iodinated contrast agents used in prior 48 hours (significant increase in metformin
concentration and risk of lactic acidosis)

- Pregnant or lactating

- Recent (< 4 weeks) active, documented, cervical infection
GenderFemale
Ages18 Years
Accepts Healthy VolunteersNo
ContactsContact: Rachel Phipps, RN
919-966-4432
rachel_phipps@med.unc.edu
Location CountriesUnited States

Administrative Information[ + expand ][ + ]

NCT Number NCT02035787
Other Study ID NumbersLCCC 1326
Has Data Monitoring CommitteeYes
Information Provided ByUNC Lineberger Comprehensive Cancer Center
Study SponsorUNC Lineberger Comprehensive Cancer Center
CollaboratorsNot Provided
Investigators Principal Investigator: Kemi M Doll, MD UNC Lineberger Comprehensive Cancer Center
Verification DateJanuary 2014

Locations[ + expand ][ + ]

Lineberger Comprehensive Cancer Center
Chapel Hill, North Carolina, United States, 27599
Principal Investigator: Kemi M Doll, MD
Not yet recruiting