資料來源：https://www.prnewswire.com/news-releases/gsk-receives-fda-approval-for-a-new-self-injectable-formulation-of-benlysta-belimumab-for-systemic-lupus-erythematosus-300492419.html

GSK announced today that the US Food and Drug Administration (FDA) has approved a new subcutaneous formulation of Benlysta (belimumab) for the treatment of adult patients with active, autoantibody-positive SLE who are receiving standard therapy. Systemic Lupus Erythematosus (SLE) is the most common form of lupus, a chronic, incurable autoimmune disease producing autoantibodies that can attack almost any system in the body. The approval marks the first subcutaneous self-injection treatment option for patients with SLE.

After training from their health care provider, patients will be able to administer the medicine as a once weekly injection of 200mg, from either a single-dose prefilled syringe or from a single-dose autoinjector. This is the second formulation of Benlysta to be granted approval for SLE, adding to the existing intravenous (IV) formulation, approved in 2011, which is administered by healthcare professionals to patients as a weight-based dose of 10mg/kg, via a one-hour infusion in a hospital or clinic setting every four weeks (following an initial loading phase given on days 0, 14 and 28).

Vlad Hogenhuis, Senior Vice President, Head of Specialty Care, GSK said, "We are delighted with today's decision. Lupus can impact the lives of patients in many different ways with varied and often unpredictable symptoms. Since it launched in its IV form, thousands of patients worldwide have received treatment with Benlysta. The approval of the new injectable formulation will now provide an additional choice for patients, allowing them to self-administer their medicine at home rather than going to hospitals or clinics for their infusions."

The approval is based on data from the BLISS-SC phase III pivotal study of more than 800 patients with active SLE, which measured reduction in disease activity at Week 52 in patients receiving belimumab plus standard of care, versus those receiving placebo plus standard of care (assessed by SRI, a composite measure of efficacy in lupus).

Benlysta subcutaneous formulation will be available in specialty pharmacies in the US in late August.

Further regulatory submissions for the subcutaneous formulation of Benlysta are under review or planned in other countries during the course of 2017.

About Benlysta (belimumab)

Benlysta is currently the only medicine specifically developed and approved for SLE. Benlysta, a BLyS-specific inhibitor, is a human monoclonal antibody that binds to soluble BLyS. Benlysta does not bind B cells directly. By binding BLyS, Benlysta inhibits the survival of B cells, including autoreactive B cells, and reduces the differentiation of B cells into immunoglobulin-producing plasma cells.

Benlysta is indicated in the US for the treatment of adult patients with active, autoantibody-positive, systemic lupus erythematosus (SLE) who are receiving standard therapy: Limitations of Use: The efficacy of Benlysta has not been evaluated in patients with severe active lupus nephritis or severe active central nervous system lupus. Benlysta has not been studied in combination with other biologics or intravenous cyclophosphamide. Use of Benlysta is not recommended in these situations.

Full US prescribing information including Medication Guide will be available in the near future at: gsksource.com. In the meantime, you may request a copy through GSK Communications.

Benlysta is licensed in the European Union as an add-on therapy in adult patients with active autoantibody-positive SLE, with a high degree of disease activity (e.g. positive anti-dsDNA and low complement), despite standard therapy.

Benlysta subcutaneous formulation is currently not approved in the European Union.

About systemic lupus erythematosus (SLE)

Systemic lupus erythematosus (SLE) is the most common form of lupus, affecting approximately 70 percent of an estimated 5 million people with lupus worldwide. Approximately 170,000-200,000 Americans live with SLE. It is a chronic, incurable autoimmune disease producing autoantibodies that can attack almost any system in the body.