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FDA Approves Actemra (tocilizumab) for Giant Cell Arteritis

May 22, 2017
First dedicated treatment for giant cell arteritis, a painful condition that causes headaches and jaw pain.

The Food and Drug Administration (FDA) has expanded the approved use of subcutaneous Actemra (tocilizumab) to treat adults with giant cell arteritis. This new indication provides the first FDA-approved therapy, specific to this type of vasculitis, according to a press release from the agency.1

“We expedited the development and review of this application because this drug fulfills a critical need for patients with this serious disease who had limited treatment options,” said Badrul Chowdhury, MD, PhD, director of the Division of Pulmonary, Allergy, and Rheumatology Products in the FDA’s Center for Drug Evaluation and Research.

Giant cell arteritis is a painful form of vasculitis. Symptoms include headaches, jaw pain, vision loss, fever, and fatigue. Diagnosis usually requires biopsy of the temporal artery. For this reason, the disorder is sometimes called temporal arteritis. However, other blood vessels, including large ones like the aorta, can become inflamed in giant cell arteritis. Standard treatment involves high doses of corticosteroids that are tapered over time, noted the agency.

The efficacy and safety of subcutaneous tocilizumab were established in a double-blind, placebo-controlled study with 251 patients with giant cell arteritis. The primary efficacy endpoint was the proportion of patients achieving sustained remission from Week 12 through Week 52. Sustained remission was defined as the absence of symptoms of giant cell arteritis, normalization of inflammatory laboratory tests, and tapering the use of prednisone.

The study found that a  greater proportion of patients receiving subcutaneous tocilizumab with standardized prednisone regimens achieved sustained remission from Week 12 through Week 52 as compared to patients receiving placebo with standardized prednisone regimens. “The cumulative prednisone dose was lower in treated patients with Actemra relative to placebo,” noted the FDA.

The overall safety profile observed in the Actemra treatment groups was generally consistent with the known safety profile of Actemra. Actemra carries a Boxed Warning for serious infections. Patients treated with Actemra who develop a serious infection should stop that treatment until the infection is controlled. Live vaccines should be avoided during treatment with Actemra. Actemra should be used with caution in patients at increased risk of gastrointestinal perforation. Hypersensitivity reactions, including anaphylaxis and death, have occurred. Laboratory monitoring is recommended due to potential consequences of treatment-related changes in neutrophils (type of white blood cell), platelets, lipids and liver function tests.

Subcutaneous Actemra was previously approved for the treatment of moderate to severely active rheumatoid arthritis. Intravenous Actemra was also previously approved for the treatment of moderate to severely active rheumatoid arthritis, systemic juvenile idiopathic arthritis and polyarticular juvenile idiopathic arthritis. Intravenous administration is not approved for giant cell arteritis.

Last updated on: November 5, 2020
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