Fertility-sparing Therapy for Patients With Stage IA Endometrial Cancer

"Patients will receive medroxyprogesterone acetate (FARLUTAL) 250-500mg/d or megestrol acetate (YiLiZhi) 160-320mg/d orally. If there is no response after 6 months of treatment, change the regimen to levonorgestrel intrauterine system (Mirena) and gonadotropin-releasing hormone agonist (Leuprorelin, Goserelin or Triptorelin) 3.75mg/28d injection subcutaneously. After complete remission, the same regimen will be used for consolidation treatment for another 1-3 months. Subsequently, if the patient has no intention of pregnancy, render maintenance treatment (Mirena, Progesterone, Dydrogesterone, or combined oral contraceptive). Otherwise, the patient will be encouraged to conceive either by an expectation for 3-6 months, or by assisted reproductive technology. Indications for stopping fertility-sparing therapy: 1) disease progression; 2) no response after 9 months of treatment; 3) repeated recurrence; 4) no longer require sparing fertility; 5) serious adverse reactions."