ERELZI is indicated for reducing signs and symptoms, inducing major clinical response, inhibiting the progression of structural damage, and improving physical function in patients with moderately to severely active rheumatoid arthritis. ERELZI can be initiated in combination with methotrexate (MTX) or used alone.
ERELZI is indicated for reducing signs and symptoms of moderately to severely active polyarticular juvenile idiopathic arthritis (JIA) in patients ages 2 and older.
ERELZI is indicated for reducing signs and symptoms in patients with active ankylosing spondylitis (AS).
In adult clinical trials of all TNF blockers, more cases of lymphoma were seen compared to control patients. The risk of lymphoma may be up to several-fold higher in RA patients. The role of TNF blocker therapy in the development of malignancies is unknown.
Cases of acute and chronic leukemia have been reported in association with postmarketing TNF blocker use in RA and other indications. The risk of leukemia may be higher in patients with RA (approximately 2-fold) than the general population.
Melanoma and non-melanoma skin cancer (NMSC) have been reported in patients treated with TNF blockers, including ERELZI. Periodic skin examinations should be considered for all patients at increased risk for skin cancer.
In patients who initiated therapy at ≤ 18 years of age, approximately half of the reported malignancies were lymphomas (Hodgkin's and non-Hodgkin's lymphoma). Other cases included rare malignancies usually associated with immunosuppression and malignancies that are not usually observed in children and adolescents. Most of the patients were receiving concomitant immunosuppressants.
Treatment with TNF-blocking agents, including etanercept products, has been associated with rare (< 0.1%) cases of new onset or exacerbation of central nervous system demyelinating disorders, some presenting with mental status changes and some associated with permanent disability, and with peripheral nervous system demyelinating disorders. Cases of transverse myelitis, optic neuritis, multiple sclerosis, Guillain-Barré syndromes, other peripheral demyelinating neuropathies, and new onset or exacerbation of seizure disorders have been reported in postmarketing experience with etanercept products therapy. Prescribers should exercise caution in considering the use of ERELZI in patients with preexisting or recent-onset central or peripheral nervous system demyelinating disorders.
Cases of worsening congestive heart failure (CHF) and, rarely, new-onset cases have been reported in patients taking etanercept products. Caution should be used when using ERELZI in patients with CHF. These patients should be carefully monitored.
Rare cases of pancytopenia, including aplastic anemia, some fatal, have been reported. The causal relationship to ERELZI therapy remains unclear. Exercise caution when considering ERELZI in patients who have a previous history of significant hematologic abnormalities. Advise patients to seek immediate medical attention if they develop signs or symptoms of blood dyscrasias or infection. Consider discontinuing ERELZI if significant hematologic abnormalities are confirmed.
Reactivation of hepatitis B has been reported in patients who were previously infected with hepatitis B virus (HBV) and received concomitant TNF-blocking agents, including ERELZI. Most reports occurred in patients also taking immunosuppressive agents, which may contribute to hepatitis B reactivation. Exercise caution when considering ERELZI in these patients.
Allergic reactions associated with administration of ERELZI during clinical trials have been reported in < 2% of patients. If an anaphylactic reaction or other serious allergic reaction occurs, administration of ERELZI should be discontinued immediately and appropriate therapy initiated.
Live vaccines should not be administered to patients on ERELZI. Pediatric patients, if possible, should be brought up to date with all immunizations prior to initiating ERELZI. In patients with exposure to varicella virus, temporarily discontinue ERELZI and consider prophylactic treatment with Varicella Zoster Immune Globulin.
Autoantibodies may develop with ERELZI and rarely lupus-like syndrome or autoimmune hepatitis may occur. These may resolve upon withdrawal of ERELZI. Stop ERELZI if lupus-like syndrome or autoimmune hepatitis develops.
The use of ERELZI in patients with Wegener's granulomatosis receiving immunosuppressive agents (eg, cyclophosphamide) is not recommended.
Based on a study of patients treated for alcoholic hepatitis, exercise caution when using ERELZI in patients with moderate to severe alcoholic hepatitis.
The most commonly reported adverse reactions in RA clinical trials were injection site reaction and infection. In clinical trials of all other adult indications, adverse reactions were similar to those reported in RA clinical trials.
In general, the adverse reactions in pediatric patients were similar in frequency and type as those seen in adult patients. The types of infections reported in pediatric patients were generally mild and consistent with those commonly seen in the general pediatric population.
The use of ERELZI in patients receiving concurrent cyclophosphamide therapy is not recommended. The risk of serious infection may increase with concomitant use of abatacept therapy. Concurrent therapy with ERELZI and anakinra is not recommended. Hypoglycemia has been reported following initiation of ERELZI therapy in patients receiving medication for diabetes, necessitating a reduction in anti-diabetic medication in some of these patients.