Leuprorelin Acetate SR 11.25 mg for Injection Specified Drug-use Survey "Long-term Use Survey on Premenopausal Breast Cancer Patients (96 Weeks)"

Leuplin SR 11.25 mg for Injection Specified Drug-use Survey "Long-term Use Survey on Premenopausal Breast Cancer Patients (96 Weeks)"

The purpose of this survey is to examine the safety and efficacy of long-term use (96 weeks) of leuprorelin acetate SR (slow release) 11.25 milligram (mg) for injection (Leuplin SR 11.25 mg for Injection) in premenopausal breast cancer patients in daily medical practice, as well as to examine factors that can influence the safety and efficacy of treatment with leuprorelin acetate SR 11.25 mg for injection (Leuplin SR 11.25 mg for Injection).

This survey was designed to examine the safety and efficacy of long-term use (96 weeks) of leuprorelin acetate 3 months depot for injection (Leuplin SR 11.25 mg for Injection) in premenopausal breast cancer patients in daily medical practice, as well as to examine factors that can influence the safety and efficacy of treatment with leuprorelin acetate SR 11.25 mg for injection (Leuplin SR 11.25 mg for Injection).

For adults, 11.25 mg of leuprorelin acetate is usually administered subcutaneously once every 12 weeks. Prior to injection, the plunger rod of the syringe is pushed upward with the needle pointed upward, allowing the entire suspension fluid contained to be transferred to the powder. The powder is then fully suspended in the fluid while ensuring that bubbles are not generated.

Inclusion Criteria:

• Premenopausal breast cancer patients (patients with advanced or recurrent breast cancer and patients who received adjuvant therapy).

Exclusion Criteria:

• Patients with a history of treatment with Leuplin SR 11.25 mg for Injection