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Tirzepatide and Levonorgestrel IUD Therapy for EIN and Early-Stage Endometrial Cancer

Not Yet RecruitingEARLY_Phase 1

Sponsor: Milton S. Hershey Medical Center

Conditions: Grade 1 Endometrial Endometrioid Carcinoma, Endometrial Intraepithelial Neoplasia, Metabolic Comorbidities

Interventions: Tirzepatide

Countries: United States

This single-arm study will evaluate the feasibility, safety, and preliminary efficacy of tirzepatide in combination with standard levonorgestrel intrauterine device (LNG-IUD) therapy in patients with endometrial intraepithelial neoplasia (EIN) or grade 1 endometrioid endometrial carcinoma with co-existing obesity and metabolic risk factors. Participants will receive tirzepatide once weekly while continuing standard clinical management with an LNG-IUD. Treatment decisions will remain at the discretion of the treating physician. The primary objective is to evaluate pathologic response at approximately 6 months. Secondary objectives include changes in metabolic parameters, assessing the incidence and severity of adverse events of tirzepatide and LNG-IUD therapy, quality of life assessment, change in weight, and change in BMI.

Eligibility overview

Sex: FEMALE

Age: 18 Years to —

Healthy volunteers: No

Study type: INTERVENTIONAL

Eligibility criteria

Inclusion

1. Age ≥ 18 years
2. Histologically confirmed endometrial intraepithelial neoplasia (EIN) or grade 1 endometrioid EC
3. BMI ≥ 30 kg/m2
4. Presence of at least one obesity-associated metabolic comorbidity, including:

a. Hypertension defined as: i. Documented diagnosis of hypertension, regardless of treatment status, documented in the medical records, or ii. Participants receiving antihypertensive therapy, or iii. BP ≥ 130/80 mmHg over 3 independent measurements, or iv. Single BP ≥ 160/100 mmHg b. Hyperlipidemia defined as: i. Documented diagnosis of hyperlipidemia, regardless of treatment status, documented in the medical record, or ii. Participants receiving lipid-lowering therapy, or iii. Triglycerides \> 200 mg/dL, or iv. LDL Cholesterol \> 130 mg/dL c. Type 2 Diabetes defined as: i. Documented diagnosis of Type 2 diabetes mellitus, regardless of treatment status, documented in the medical record, or ii. Receiving glucose-lowering therapy, or iii. Impaired glucose tolerance (Hgb A1c \> 6.0%) d. Diagnosed with sleep apnea
5. For participants diagnosed with grade 1 endometrioid endometrial carcinoma: clinical stage 1A disease with MRI-confirmed myometrial invasion \< 50% and no evidence of metastatic disease
6. For participants with EIN: no evidence of extrauterine disease based on clinically appropriate evaluation
7. Ability to provide informed consent and comply with study procedures and follow-up

Exclusion

1. Mismatch repair-deficient (MMRd) tumors
2. p53-abnormal tumors
3. Known hypersensitivity or contraindication to either:

1. Tirzepatide, or
2. LNG-IUD
4. Prior LNG-IUD in place at the time of EIN or endometrial cancer diagnosis
5. Current systemic progestin therapy
6. Current treatment with tirzepatide or another GLP-1 receptor agonist/GLP-1-GIP receptor agonist, or prior treatment with these agents within 1 month before study enrollment
7. Type 1 diabetes or a history of pancreatitis, medullary thyroid carcinoma, or Multiple Endocrine Neoplasia syndrome type 2 (MEN2)
8. Pregnancy, breastfeeding, or intention to become pregnant during the study treatment
9. Concurrent malignancy requiring active treatment (except non-melanoma skin cancer)
10. Any medical, psychiatric, or social condition, that in the opinion of the investigator, would interfere with study participation or safety
11. Participants with diabetic eye disease, including non-proliferative diabetic retinopathy requiring acute therapy, proliferative diabetic retinopathy, or diabetic macular edema
12. Severe renal impairment, defined as eGFR \< 30 mL/min/1.73m2

Locations (1)

Hershey, Pennsylvania, United States