TOFACITINIB

Boxed Warning 10/2025 Indications and Usage, Psoriatic Arthritis ( 1.2 ) 10/2025 Warnings and Precautions, Serious Infections ( 5.1 ) 03/2026 Warnings and Precautions, Hypoglycemia in Patients with 6/2026 Diabetes ( 5.8 )

1 INDICATIONS AND USAGE Tofacitinib extended-release tablets are Janus kinase (JAK) inhibitors. Tofacitinib extended-release tablets are 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. Active psoriatic arthritis (PsA), who have had an inadequate response or intolerance to one or more TNF blockers. Active ankylosing spondylitis (AS), who have had an inadequate response or intolerance to one or more TNF blockers. Limitations of Use : Use of tofacitinib extended-release tablets for RA, AS, or PsA in combination with biologic DMARDs or potent immunosuppressants such as azathioprine and cyclosporine is not recommended. ( 1.1 , 1.2 , 1.3 ) 1.1 Rheumatoid Arthritis Tofacitinib extended-release tablets are 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 tofacitinib extended-release tablets in combination with biologic disease-modifying antirheumatic drugs (DMARDs) or with potent immunosuppressants such as azathioprine and cyclosporine is not recommended. 1.2 Psoriatic Arthritis Tofacitinib extended-release tablets are indicated for the treatment of adults with active PsA who have had an inadequate response or intolerance to one or more TNF blockers. Li mitatio ns of Use Use of tofacitinib extended-release tablets in com bina tion with biologic DMARDs or with potent immunosuppressants such as azathioprine and cyclosporine is not recommended. 1.3 Ankylosing Spondylitis Tofacitinib extended-release tablets are 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 tofacitinib extended-release tablets in combination with biologic DMARDs or potent immunosuppressants such as azathioprine and cyclosporine is not recommended.

2 DOSAGE AND ADMINISTRATION Recommended Evaluations and Immunization Prior to Treatment Initiation Prior to initiating tofacitinib extended-release tablets, consider performing an active and latent TB evaluation, viral hepatitis screening, a complete blood count, and updating immunizations. Avoid tofacitinib extended-release tablets initiation if absolute lymphocyte count 80 mL/min (normal renal function); >50 and ≤80 mL/min (mild renal impairment); ≥30 and ≤50 mL/min (moderate renal impairment); 50 and ≤80 mL/min) 11 mg once daily Moderate RI (CLcr ≥30 and ≤50 mL/min) XELJANZ tablets 5 mg once daily Severe RI (CLcr <30 mL/min) XELJANZ tablets 5 mg once daily For patients undergoing hemodialysis, administer the dose after the dialysis session on dialysis days. If a dose was taken before the dialysis procedure, supplemental doses are not recommended after dialysis. Recommended Dosage in Patients with Hepatic Impairment (HI) Mild HI (Child-Pugh A) 11 mg once daily Moderate HI (Child-Pugh B) XELJANZ tablets 5 mg once daily Severe HI (Child-Pugh C) Use of XELJANZ tablets/tofacitinib extended-release tablets are not recommended. Dosage Modifications with Concomitant Use of CYP3A4 and/or CYP2C19 Inhibitor(s) Strong CYP2C19 inhibitor(s) 11 mg once daily Moderate CYP2C19 inhibitor(s) Moderate CYP3A4 inhibitor(s) Moderate CYP3A4 inhibitor(s) with strong CYP2C19 inhibitor(s) (e.g., fluconazole) XELJANZ tablets 5 mg once daily Strong CYP3A4 inhibitor(s) Dosage Modifications for Lymphopenia, Neutropenia, or Anemia Patients with lymphocyte count less than 500 cells/mm 3 , confirmed by repeat testing Discontinue dosing. Patients with ANC less than 500 cells/mm 3 Discontinue dosing. Patients with ANC 500 cells/mm 3 to 1,000 cells/mm 3 Interrupt dosing. When ANC is greater than 1,000, resume 11 mg once daily. Patients with hemoglobin less than 8 g/dL or a decrease of more than 2 g/dL Interrupt dosing until hemoglobin values have normalized. Switching from Tofacitinib Tablets to Tofacitinib Extended-Release Tablets Patients treated with tofacitinib tablets 5 mg twice daily may be switched to tofacitinib extended-release tablets 11 mg once daily the day following the last dose of tofacitinib tablets 5 mg.

3 DOSAGE FORMS AND STRENGTHS Tofacitinib Extended-Release Tablets: 11 mg tofacitinib: Pink colored, oval-shaped, film-coated, extended-release tablets, debossed with "TF" on one side and plain on other side. Tofacitinib extended-release tablets: 11 mg tofacitinib ( 3 )

4 CONTRAINDICATIONS None. None. ( 4 )

6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: Serious Infections [see Warnings and Precautions (5.1) ] Increased Risk of Mortality [see Warnings and Precautions (5.2) ] Malignancy and Lymphoproliferative Disorders [see Warnings and Precautions (5.3) ] Major Adverse Cardiovascular Events [see Warnings and Precautions (5.4) ] Thrombosis [see Warnings and Precautions (5.5) ] Gastrointestinal Perforations [see Warnings and Precautions (5.6) ] Hypersensitivity Reactions [see Warnings and Precautions (5.7) ] Hypoglycemia in Patients with Diabetes [see Warnings and Precautions (5.8) ] Laboratory Abnormalities [see Warnings and Precautions (5.9) ] Most common adverse reactions are: RA , PsA, and AS : Reported in ≥2% of adult patients treated with tofacitinib tablets monotherapy or in combination with DMARDs: upper respiratory tract infection (URI), nasopharyngitis, diarrhea, and headache. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Aurobindo Pharma USA, Inc. at 1-866-850-2876 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Trials Experience Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical studies of another drug and may not predict the rates observed in a broader patient population in clinical practice. The clinical studies described in this subsection were conducted using tofacitinib tablets and/or tofacitinib oral solution. Adverse Reactions in Adults with Rheumatoid Arthritis In RA Safety Study 1, 1,455 adults were treated with tofacitinib 5 mg twice daily, 1,456 adults were treated with 10 mg twice daily, and 1,451 adults were treated with a TNF blocker for a median of 4 years [see Clinical Studies (14.6) ] . A dosage of tofacitinib 10 mg twice daily is not recommended for the treatment of RA because of increased risks [see Dosage and Administration (2.3) and Warnings and Precautions (5) ]. For the treatment of adults with moderately to severely active RA [see Indications and Usage (1.1) ] , the recommended dosage of tofacitinib is 5 mg twice daily and the recommended dosage for tofacitinib extended-release tablets is 11 mg once daily. The safety of tofacitinib was also evaluated in two Phase 2 and five Phase 3 double-blind, placebo-controlled, multicenter trials in patients with RA. In these trials, adults were randomized to receive: Tofacitinib (monotherapy) 5 mg twice daily (292 patients) or 10 mg twice daily (306 patients), In combination with DMARDs (including methotrexate), tofacitinib 5 mg twice daily (1044 patients) or 10 mg twice daily (1043 patients) and Placebo (809 patients). All seven trials included provisions for patients taking placebo to receive treatment with tofacitinib at Month 3 or Month 6 either by patient response (based on uncontrolled disease activity) or by design, so that adverse events cannot always be unambiguously attributed to a given treatment. Therefore, some analyses that follow include patients who changed treatment by design or by patient response from placebo to tofacitinib in both the placebo and tofacitinib group of a given interval. Comparisons between placebo and tofacitinib groups were based on the first 3 months of exposure, and comparisons between tofacitinib 5 mg twice daily and tofacitinib 10 mg twice daily were based on the first 12 months of exposure. The long-term safety population includes all adults with RA who participated in a double-blind, placebo-controlled trial (including earlier development phase studies) and then participated in one of two long-term safety studies. The design of the long-term safety studies allowed for modification of tofacitinib doses according to clinical judgment. This limits the interpretation of the long-term safety data with respect to dose. The most common serious adverse reactions were serious infections [see Warn …

7 DRUG INTERACTIONS Table 7 includes drugs with clinically significant drug interactions when concomitantly used with tofacitinib extended-release tablets and instructions for preventing or managing them. Table 7: Clinically Significant Interactions Affecting Tofacitinib Extended-Release Tablets When Concomitantly Used with Other Drugs Strong CYP3A4 Inhibitors (e.g., ketoconazole) Clinical Impact Increased exposure to tofacitinib Intervention Dosage modification of tofacitinib extended-release tablets is recommended [see Dosage and Administration ( 2 ), Clinical Pharmacology, Figure 3 ( 12.3 )] Moderate CYP3A4 Inhibitors Concomitantly Used with Strong CYP2C19 Inhibitors (e.g., fluconazole) Clinical Impact Increased exposure to tofacitinib Intervention Dosage modification of tofacitinib extended-release tablets is recommended [see Dosage and Administration ( 2 ), Clinical Pharmacology, Figure 3 ( 12.3 )] Strong CYP3A4 Inducers (e.g., rifampin) Clinical Impact Decreased exposure to tofacitinib and may result in loss of or reduced clinical response Intervention Concomitant use with tofacitinib extended-release tablets is not recommended [see Clinical Pharmacology, Figure 3 ( 12.3 )] Immunosuppressive Drugs (e.g., azathioprine, tacrolimus, cyclosporine) Clinical Impact Risk of added immunosuppression; concomitant use of tofacitinib extended-release tablets with biologic DMARDs or potent immunosuppressants has not been studied in patients with RA, PsA or AS. Intervention Concomitant use with tofacitinib extended-release tablets is not recommended [see Indications and Usage ( 1 ), Clinical Pharmacology, Figure 3 ( 12.3 )] See FPI for clinically significant drug interactions. ( 2 , 7 )

8 USE IN SPECIFIC POPULATIONS Lactation : Advise not to breastfeed. ( 8.2 ) 8.1 Pregnancy Risk Summary The available data with tofacitinib extended-release tablets from a pregnancy exposure registry that enrolled 11 exposed pregnant females, pharmacovigilance, and published literature are insufficient to draw conclusions about a drug-associated risk of major birth defects, miscarriage, or other adverse maternal or fetal outcomes. There are risks to the mother and the fetus associated with RA in pregnancy (see Clinical Considerations) . In animal reproduction studies, fetocidal and teratogenic effects were noted when pregnant rats and rabbits received tofacitinib during the period of organogenesis at exposures multiples of 73-times and 6.3-times the maximum recommended dose of 10 mg twice daily, respectively. Further, in a peri- and post-natal study in rats, tofacitinib resulted in reductions in live litter size, postnatal survival, and pup body weights at exposure multiples of approximately 73-times the recommended dosage of 5 mg twice daily and approximately 36 times the maximum recommended dosage of 10 mg twice daily, respectively (see Data) . The background risks of major birth defects and miscarriage for the indicated populations are unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. The background risks in the U.S. general population of major birth defects and miscarriages are 2 to 4% and 15 to 20% of clinically recognized pregnancies, respectively. Clinical Considerations Disease-Associated Maternal and/or Embryo/Fetal Risk: Published data suggest that increased disease activity is associated with the risk of developing adverse pregnancy outcomes in women with RA. Adverse pregnancy outcomes include preterm delivery (before 37 weeks of gestation), low birth weight (less than 2500 grams) infants, and small for gestational age at birth. Data Animal Data: In a rat embryofetal developmental study, in which pregnant rats received tofacitinib during organogenesis, tofacitinib was teratogenic at exposure levels approximately 146 times the recommended dose of 5 mg twice daily, and approximately 73 times the maximum recommended dose of 10 mg twice daily (on an AUC basis at oral doses of 100 mg/kg/day in rats). Teratogenic effects consisted of external and soft tissue malformations of anasarca and membranous ventricular septal defects, respectively; and skeletal malformations or variations (absent cervical arch; bent femur, fibula, humerus, radius, scapula, tibia, and ulna; sternoschisis; absent rib; misshapen femur; branched rib; fused rib; fused sternebra; and hemicentric thoracic centrum). In addition, there was an increase in post-implantation loss, consisting of early and late resorptions, resulting in a reduced number of viable fetuses. Mean fetal body weight was reduced. No developmental toxicity was observed in rats at exposure levels approximately 58 times the recommended dose of 5 mg twice daily, and approximately 29 times the maximum recommended dose of 10 mg twice daily (on an AUC basis at oral doses of 30 mg/kg/day in pregnant rats). In a rabbit embryofetal developmental study in which pregnant rabbits received tofacitinib during the period of organogenesis, tofacitinib was teratogenic at exposure levels approximately 13 times the recommended dose of 5 mg twice daily, and approximately 6.3 times the maximum recommended dose of 10 mg twice daily (on an AUC basis at oral doses of 30 mg/kg/day in rabbits) in the absence of signs of maternal toxicity. Teratogenic effects included thoracogastroschisis, omphalocele, membranous ventricular septal defects, and cranial/skeletal malformations (microstomia, microphthalmia), mid-line and tail defects. In addition, there was an increase in post-implantation loss associated with late resorptions. No developmental toxicity was observed in rabbits at exposure levels approximately 3 times the recommended dose of 5 mg twice daily, and appro …

12.1 Mechanism of Action Tofacitinib is a Janus kinase (JAK) inhibitor. JAKs are intracellular enzymes which transmit signals arising from cytokine or growth factor-receptor interactions on the cellular membrane to influence cellular processes of hematopoiesis and immune cell function. Within the signaling pathway, JAKs phosphorylate and activate Signal Transducers and Activators of Transcription (STATs) which modulate intracellular activity including gene expression. Tofacitinib modulates the signaling pathway at the point of JAKs, preventing the phosphorylation and activation of STATs. JAK enzymes transmit cytokine signaling through pairing of JAKs (e.g., JAK1/JAK3, JAK1/JAK2, JAK1/TyK2, JAK2/JAK2). Tofacitinib inhibited the in vitro activities of JAK1/JAK2, JAK1/JAK3, and JAK2/JAK2 combinations with IC 50 of 406 nM, 56 nM, and 1,377 nM, respectively. However, the relevance of specific JAK combinations to therapeutic effectiveness is not known.

11 DESCRIPTION Tofacitinib extended-release tablets are formulated with the citrate salt of tofacitinib, a JAK inhibitor. Tofacitinib citrate is a white to off-white crystalline powder with the following chemical name: (3R,4R)-4-methyl-3-(methyl-7H-pyrrolo [2,3-d]pyrimidin-4-ylamino)-ß-oxo-1-piperidinepropanenitrile, 2-hydroxy-1,2,3-propanetricarboxylate (1:1). The solubility of tofacitinib citrate in water is 2.9 mg/mL. Tofacitinib citrate has a molecular weight of 504.5 Daltons (or 312.4 Daltons as the tofacitinib free base) and a molecular formula of C 16 H 20 N 6 O•C 6 H 8 O 7 . The chemical structure of tofacitinib citrate is: Tofacitinib extended-release tablets are supplied for oral administration as a 11 mg pink, oval, bevel edged, mat finished film-coated extended-release tablets imprinted with “TI11” on one side and plain on other side. Each 11 mg tablet of tofacitinib extended-release tablet contains 11 mg tofacitinib (equivalent to 17.77 mg tofacitinib citrate) and the following inactive ingredients: butylated hydroxytoluene, cellulose acetate, colloidal silicon dioxide, copovidone, hydroxyethyl cellulose, hydroxypropyl cellulose, hypromellose, iron oxide red, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene oxide, titanium dioxide and triacetin. Printing ink contains, iron oxide black, propylene glycol, and shellac glaze. str

10 OVERDOSAGE There is no specific antidote for overdose with tofacitinib extended-release tablets. In case of an overdose, it is recommended that the patient be monitored for signs and symptoms of adverse reactions. In a study in patients with end-stage renal disease (ESRD) undergoing hemodialysis, plasma tofacitinib concentrations declined more rapidly during the period of hemodialysis and dialyzer efficiency, calculated as dialyzer clearance/blood flow entering the dialyzer, was high [mean (SD) = 0.73 (0.15)]. However, due to the significant non-renal clearance of tofacitinib, the fraction of total elimination occurring by hemodialysis was small, and thus, limits the value of hemodialysis for treatment of overdose with tofacitinib extended-release tablets. Consider contacting the Poison Help line (1-800-222-1222) or a medical toxicologist for additional overdose management recommendations.

16 HOW SUPPLIED/STORAGE AND HANDLING How Supplied Information for Tofacitinib Extended-Release Tablets How supplied information for tofacitinib extended-release tablets is shown in Table 23. Table 23: How Supplied Information for Tofacitinib Extended-Release Tablets Dosage Form, Strength, and Description Bottle Size (number of tablets) NDC Number Tofacitinib extended-release tablets 11 mg Pink colored, oval-shaped, film-coated, extended-release tablets, debossed with "TF" on one side and plain on other side 30 tablets with child-resistant closure NDC 27241-270-30 Storage and Handling for Tofacitinib extended-release tablets Store tofacitinib extended-release tablets at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature]. Do not repackage.