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Pfizer Announces FDA Approval of Xeljanz (tofacitinib) and Xeljanz XR for the Treatment of Active Psoriatic Arthritis

December 14, 2017 - Pfizer Inc. (NYSE:PFE) announced today that the United States Food and Drug Administration (FDA) has approved Xeljanz 5 mg twice daily (BID) and Xeljanz XR (tofacitinib) extended release 11 mg once daily (QD) for the treatment of adult patients with active psoriatic arthritis (PsA) who have had an inadequate response or intolerance to methotrexate or other disease-modifying antirheumatic drugs (DMARDs). Xeljanz/Xeljanz XR is the first and only Janus kinase (JAK) inhibitor approved by the FDA for both moderate to severe rheumatoid arthritis (RA) and active PsA.

“Psoriatic arthritis is a complex and progressive disease with an unpredictable course,” said Angela Hwang, Global President, Inflammation and Immunology, Pfizer. “The approval of Xeljanz is an important step forward for patients seeking new treatments and is a testament to Pfizer’s unwavering commitment to advancing patient care.”

The recommended dose of Xeljanz/Xeljanz XR is in combination with nonbiologic DMARDs, and use in combination with biologic DMARDs or with potent immunosuppressants such as azathioprine and cyclosporine is not recommended.

The FDA approval of Xeljanz for the treatment of adult patients with active PsA was based on data from the Phase 3 Oral Psoriatic Arthritis Trial (OPAL) clinical development program, which consisted of two pivotal studies, OPAL Broaden and OPAL Beyond, as well as available data from an ongoing long-term extension trial, OPAL Balance. The findings from OPAL Broaden and OPAL Beyond were published in October 2017 in the New England Journal of Medicine.

Both pivotal studies met their two primary efficacy endpoints, demonstrating statistically significant improvements in American College of Rheumatology 20 (ACR20) response and change from baseline in the Health Assessment Questionnaire–Disability Index (HAQ-DI) score at three months in patients receiving Xeljanz 5 mg BID treatment in combination with a nonbiologic DMARD, compared to those treated with placebo. In OPAL Broaden, 50% of patients taking Xeljanz 5 mg BID achieved an ACR20 response, compared to 33% of patients taking placebo (p≤0.05), at three months. In OPAL Beyond, 50% of patients achieved an ACR20 response with Xeljanz 5 mg BID, compared to 24% of patients taking placebo (p≤0.05), at three months. In both studies, statistically significant improvements in ACR20 response was also seen with Xeljanz 5 mg BID compared to placebo at week 2, a secondary endpoint and the first post-baseline assessment (OPAL Broaden: 22% and 6% [p=0.0003], respectively; OPAL Beyond: 27% and 13% [p=0.0046], respectively).

“As a practicing rheumatologist, I’ve seen the significant physical impact psoriatic arthritis has on people living with the disease, and many patients are looking for additional therapeutic options,” said Philip Mease, M.D., Swedish Medical Center, University of Washington and study investigator. “I’m pleased that Xeljanz is now available for use in the treatment of this chronic condition.”

The safety profile observed in patients with active psoriatic arthritis treated with Xeljanz was consistent with the safety profile observed in rheumatoid arthritis patients. The most common adverse events observed occurring in greater than 3% of patients on Xeljanz 5 mg BID were nasopharyngitis, upper respiratory tract infection, headache and diarrhea.

“Psoriatic arthritis is a serious and debilitating chronic illness that should be diagnosed and treated early,” said Randy Beranek, president and CEO, National Psoriasis Foundation. “As an organization that advocates for people living with psoriatic arthritis, we welcome the availability of new therapies for treating this disease.”

About the OPAL Clinical Development Program

OPAL Broaden was a 12-month study in adult patients with active PsA who had an inadequate response to nonbiologic DMARDs and who were tumor necrosis factor inhibitor (TNFi) naïve. The study included an active control arm of adalimumab 40 mg administered subcutaneously every two weeks; however, the study was not powered for non-inferiority or superiority comparisons between tofacitinib and adalimumab. OPAL Beyond was a six-month study of adult patients with active PsA who had an inadequate response to a TNFi. All patients had active PsA for at least six months based upon the Classification Criteria for Psoriatic Arthritis (CASPAR), at least three tender/painful joints and at least three swollen joints, and active plaque psoriasis. In both studies, all patients were required to receive a stable background dose of a single nonbiologic DMARD.

About Psoriatic Arthritis

Psoriatic arthritis (PsA) is a chronic, autoimmune, inflammatory disease that may include manifestations in peripheral joints, tendons, ligaments or skin. PsA may include a variety of symptoms such as joint pain and stiffness, swollen toes and/or fingers and reduced range of motion.

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DISCLOSURE NOTICE: The information contained in this release is as of December 14, 2017. Pfizer assumes no obligation to update forward-looking statements contained in this release as the result of new information or future events or developments.

This release contains forward-looking information about XELJANZ and XELJANZ XR and a new indication for the treatment of adult patients with active psoriatic arthritis who have had an inadequate response or intolerance to methotrexate or other disease-modifying antirheumatic drugs, including their potential benefits, that involves substantial risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements. Risks and uncertainties include, among other things, the uncertainties inherent in research and development, including, without limitation, the ability to meet anticipated trial commencement and completion dates and regulatory submission dates, as well as the possibility of unfavorable clinical trial results, including unfavorable new clinical data and additional analyses of existing clinical data; uncertainties regarding the commercial success of XELJANZ and XELJANZ XR, including in the new indication; the risk that clinical trial data are subject to differing interpretations, and, even when we view data as sufficient to support the safety and/or effectiveness of a product candidate, regulatory authorities may not share our views and may require additional data or may deny approval altogether; whether regulatory authorities will be satisfied with the design of and results from our clinical studies; whether and when any other applications for the new indication or any other potential indications for XELJANZ or XELJANZ XR may be filed with regulatory authorities in any jurisdictions; whether and when regulatory authorities in any jurisdictions may approve any other applications that may be filed or pending for XELJANZ or XELJANZ XR, which will depend on the assessment by such regulatory authorities of the benefit-risk profile suggested by the totality of the efficacy and safety information submitted; decisions by regulatory authorities regarding labeling and other matters that could affect the availability or commercial potential of XELJANZ and XELJANZ XR, including the new indication; and competitive developments.

A further description of risks and uncertainties can be found in Pfizer’s Annual Report on Form 10-K for the fiscal year ended December 31, 2016 and in its subsequent reports on Form 10-Q, including in the sections thereof captioned “Risk Factors” and “Forward-Looking Information and Factors That May Affect Future Results”, as well as in its subsequent reports on Form 8-K, all of which are filed with the U.S. Securities and Exchange Commission and available at www.sec.gov and www.pfizer.com.

Source: Pfizer Inc.

Posted: December 2017

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