NEW YORK, NY, USA I December 14, 2021 I Pfizer Inc. (NYSE: PFE) announced today that the U.S. Food and Drug Administration (FDA) has approved the supplemental New Drug Application (sNDA) for XELJANZ® / XELJANZ® XR (tofacitinib) for the treatment of adults with active ankylosing spondylitis (AS) who have had an inadequate response or intolerance to one or more tumor necrosis factor (TNF) blockers.

“We are proud to offer XELJANZ, a treatment option for ankylosing spondylitis that does not require an injection or an infusion, to treat this debilitating and chronic immuno-inflammatory disease,” said Mike Gladstone, Global President, Inflammation & Immunology, Pfizer. “This regulatory approval affirms the clinical value and versatility of XELJANZ, the first and only Janus kinase (JAK) inhibitor approved for five indications in the United States for the treatment of patients with certain immuno-inflammatory conditions.”

The approval of XELJANZ for AS is based on data from a Phase 3, multicenter, randomized, double-blind, placebo-controlled study that evaluated the efficacy and safety of tofacitinib 5 mg twice daily versus placebo in 269 adult patients living with active AS. The study met its primary endpoint showing that at week 16, the percentage of patients achieving an Assessment in SpondyloArthritis international Society (ASAS)20 response was significantly greater with tofacitinib (56.4%, n= 75) versus placebo (29.4%, n=40) (p<0.0001). In addition, the percentage of patients achieving an ASAS40 response was significantly greater with tofacitinib (40.6%, n=54) versus placebo (12.5%, n=17) (p<0.0001), a key secondary endpoint of the study.1 ASAS20/40 are used for defining improvement or response to treatment.2 The safety profile observed in patients with AS treated with XELJANZ was consistent with the safety profile observed in rheumatoid arthritis (RA) and psoriatic arthritis (PsA) patients.

“Ankylosing spondylitis, a type of arthritis that causes inflammation in certain parts of the spine, affects more than 350,000 people in the U.S.3 This disease often occurs in early adulthood and causes pain, swelling and possibly restricted mobility,”4 said Steven Taylor, Executive Vice President, Mission and Strategic Initiatives of the Arthritis Foundation. “With this approval, physicians and patients now have an additional oral treatment option that can help address this chronic and often progressive disease.”

About XELJANZ® (tofacitinib)

XELJANZ is the first and only oral JAK inhibitor approved in the United States in five indications. XELJANZ is indicated in patients who have had an inadequate response or intolerance to one or more TNF blockers: in adults with active AS, adults with moderately to severely active RA, active PsA, moderately to severe active ulcerative colitis (UC) and in children two and older with active polyarticular course juvenile idiopathic arthritis (pcJIA).

XELJANZ has been studied in more than 50 clinical trials worldwide, including more than 20 trials in RA patients, and prescribed to over 300,000 adult patients (the majority of whom were RA patients) worldwide since 2012.5,6,7 As the developer of XELJANZ, Pfizer is committed to advancing the science of JAK inhibition and enhancing understanding of this medicine through robust clinical development programs in the treatment of immuno-inflammatory conditions.

Earlier this month, the FDA updated the prescribing information for XELJANZ and included a new boxed warning for major adverse cardiovascular events and updated boxed warnings regarding mortality, malignancies and thrombosis (with corresponding updates to applicable warnings and precautions). In addition, indications for the treatment of adults with moderately to severely active RA or active PsA, and patients who are two years of age and older with active pcJIA were revised to require inadequate response or intolerance to one or more TNF blockers.

About Ankylosing Spondylitis

Ankylosing Spondylitis is a chronic, inflammatory disease that affects men and women in early adulthood. The onset of symptoms usually occurs before the age of 30 and seldom occur after the age of 45. Symptoms of AS include chronic pain and stiffness in the back and hips for those living with the disease and can negatively impact health-related quality of life. Over time, some patients may experience fusion of the vertebrae in the spinal column.8 According to studies, more than 350,000 people live with AS in the United States.3

INDICATIONS

Rheumatoid Arthritis

  • XELJANZ/XELJANZ XR (tofacitinib) is indicated for the treatment of adult patients with moderately to severely active rheumatoid arthritis (RA) who have had an inadequate response or intolerance to one or more TNF blockers.
  • Limitations of Use: Use of XELJANZ/XELJANZ XR in combination with biologic disease-modifying antirheumatic drugs (DMARDs) or with potent immunosuppressants such as azathioprine and cyclosporine is not recommended.

Psoriatic Arthritis

  • XELJANZ/XELJANZ XR is indicated for the treatment of adult patients with active psoriatic arthritis (PsA) who have had an inadequate response or intolerance to one or more TNF blockers.
  • Limitations of Use: Use of XELJANZ/XELJANZ XR in combination with biologic DMARDs or with potent immunosuppressants such as azathioprine and cyclosporine is not recommended.

Ankylosing Spondylitis

  • XELJANZ/XELJANZ XR is indicated for the treatment of adult patients with active ankylosing spondylitis (AS) who have had an inadequate response or intolerance to one or more TNF blockers.
  • Limitations of Use: Use of XELJANZ/XELJANZ XR in combination with biologic DMARDs or potent immunosuppressants such as azathioprine and cyclosporine is not recommended.

Ulcerative Colitis

  • XELJANZ/XELJANZ XR is indicated for the treatment of adult patients with moderately to severely active ulcerative colitis (UC), who have had an inadequate response or intolerance to one or more TNF blockers.
  • Limitations of Use: Use of XELJANZ in combination with biological therapies for UC or with potent immunosuppressants such as azathioprine and cyclosporine is not recommended.

Polyarticular Course Juvenile Idiopathic Arthritis

  • XELJANZ/XELJANZ Oral Solution is indicated for the treatment of active polyarticular course juvenile idiopathic arthritis (pcJIA) in patients 2 years of age and older who have had an inadequate response or intolerance to one or more TNF blockers.
  • Limitations of Use: Use of XELJANZ/XELJANZ Oral Solution in combination with biologic DMARDs or potent immunosuppressants such as azathioprine and cyclosporine is not recommended.

Please see full Prescribing Information, including BOXED WARNING for XELJANZ available at: www.xeljanzpi.com.

About Pfizer Inflammation & Immunology

At Pfizer Inflammation & Immunology, we strive to deliver breakthroughs that enable freedom from day-to-day suffering for people living with autoimmune and chronic inflammatory diseases, which can be debilitating, disfiguring and distressing, dramatically affecting what they can do. With a focus on Rheumatology, Gastroenterology and Medical Dermatology, our current portfolio of approved medicines and investigational molecules spans multiple action and delivery mechanisms, from topicals to small molecules, biologics and biosimilars. Our differentiated R&D approach resulted in one of the broadest pipelines in the industry, where we purposefully match molecules to diseases where we believe they can make the biggest difference. Building on our decades-long commitment and pioneering science, we continue to advance the standard of care for patients with these debilitating diseases and are working hand-in-hand with patients, caregivers and the broader healthcare community on healthcare solutions for the many challenges of managing chronic inflammatory diseases, allowing patients to live their best lives.

To learn more, visit www.pfizer.com/science/immunology-inflammation.

Pfizer Inc.: Breakthroughs that change patients’ lives®

At Pfizer, we apply science and our global resources to bring therapies to people that extend and significantly improve their lives. We strive to set the standard for quality, safety and value in the discovery, development and manufacture of health care products, including innovative medicines and vaccines. Every day, Pfizer colleagues work across developed and emerging markets to advance wellness, prevention, treatments and cures that challenge the most feared diseases of our time. Consistent with our responsibility as one of the world’s premier innovative biopharmaceutical companies, we collaborate with health care providers, governments and local communities to support and expand access to reliable, affordable health care around the world. For more than 170 years, we have worked to make a difference for all who rely on us. We routinely post information that may be important to investors on our website at www.pfizer.com. In addition, to learn more, please visit us on www.pfizer.com and follow us on Twitter at @Pfizer and @Pfizer_News, LinkedIn, YouTube and like us on Facebook at Facebook.com/Pfizer.

1 Deodhar A, Sliwinska-Stanczyk P, Xu H, Baraliakos X, Gensler LS, Fleishaker D, Wang L, Wu J, Menon S, Wang C, Dina O, Fallon L, Kanik KS, van der Heijde D. Tofacitinib for the treatment of ankylosing spondylitis: a phase III, randomised, double-blind, placebo-controlled study. Ann Rheum Dis. 2021 Apr 27;80(8):1004–13. doi: 10.1136/annrheumdis-2020-219601. Epub ahead of print. PMID: 33906853; PMCID: PMC8292568.
2 Landewé R, van Tubergen A. Clinical Tools to Assess and Monitor Spondyloarthritis. Curr Rheumatol Rep. 2015;17(7):47. doi:10.1007/s11926-015-0522-3
3 Strand V, et al. Prevalence of axial spondyloarthritis in United States rheumatology practices: Assessment of SpondyloArthritis International Society criteria versus rheumatology expert clinical diagnosis. Arthritis Care Res (Hoboken ). 2013;65:1299-1306. doi:10.1002/acr.21994
4 Johns Hopkins Arthritis Center. Ankylosing Spondylitis. Accessed December 1, 2021. https://www.hopkinsarthritis.org/arthritis-info/ankylosing-spondylitis
5 Pfizer Data on File. XELJANZ Worldwide Registration Status.
6 ClinicalTrials.gov. Tofacitinib RA Studies. Accessed June 25, 2020.
7 Pfizer. Data on File. Tofa Counts. April 2019
8 University of Maryland Medical Center. A Patient’s Guide to AS. Accessed August 2021. Available at: https://www.umms.org/ummc/health-services/orthopedics/services/spine/patient-guides/ankylosing-spondylitis

SOURCE: Pfizer