Leuplin SR 11.25 mg Injection Kit Specified Drug-use Survey: "QOL Survey in Premenopausal Breast Cancer Patients"

Leuplin SR 11.25 mg Injection Kit Specified Drug-use Survey: "QOL Survey in Premenopausal Breast Cancer Patients"

The purpose of this survey is to examine the effect on quality of life (QOL) improvement and convenience of switching to leuprorelin acetate 3 months depot 11.25 milligram (mg) injection kit (Leuplin SR 11.25 mg injection kit) from a 4-week adjuvant therapy with a luteinizing hormone-releasing hormone analog (LH-RHa) 1 month depot over 48 weeks in premenopausal breast cancer participants in daily medical practice. Influence of condition of estrogen receptor expression on the efficacy and safety of leuprorelin acetate SR 11.25 mg injection kit was also evaluated.

This survey was designed to examine the effect on QOL improvement and convenience of switching to leuprorelin acetate 3 month depot 11.25 mg injection kit (Leuplin SR 11.25 mg injection kit) from a 4-week adjuvant therapy with a LH-RHa 1 month depot over 48 weeks in premenopausal breast cancer participants in daily medical practice, as well as to evaluate the influence of condition of estrogen receptor expression on the efficacy and safety of leuprorelin acetate SR 11.25 mg injection kit .

For adults, leuprorelin acetate SR 11.25 mg injection kit (Leuplin SR 11.25 mg Injection Kit) 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 participants who meet all the following criteria are to be enrolled in the surveillance:

  1. Participants who received 4 weeks of treatment with a repository LH-RHa preparation within 1 week prior to administration of Leuplin SR 11.25 mg Injection Kit.
  2. Participants receiving Leuplin SR 11.25 mg Injection Kit as adjuvant therapy.
  3. Participants with performance status grade of 0 or 1.
  4. Participants who answered all of the questions on the "QOL check sheet (I)" at the start (Week 0) of treatment with Leuplin SR 11.25 mg Injection Kit.

Exclusion Criteria:

• Participants who meet any of the following criteria are to be excluded from the surveillance:

  1. Participants with a history of hypersensitivity to ingredient(s) in Leuplin SR 11.25 mg Injection Kit or synthetic derivatives of luteinizing hormone-releasing hormone (LH-RH) or LH-RH.
  2. Pregnant women, possibly pregnant women, and nursing mothers.
  3. Participants with advanced (T4 or M1 according to the TNM classification [General Rules for Clinical and Pathological Recording of Breast Cancer: 16th edition]) or recurrent breast cancer.