Findings In this cohort study that included 34 adults, the proportions of patients in the infliximab-abda (71%) and infliximab (60%) treatment groups achieving a Hidradenitis Suppurativa Clinical Response were not significantly different.
Design, Setting, and Participants This retrospective cohort study identified patients treated with infliximab or infliximab-abda between 2016 and 2020 at the dermatology clinic at the University of North Carolina at Chapel Hill. The study population included patients who met the clinical criteria for hidradenitis suppurativa and had received a continuous dose of infliximab or infliximab-abda for at least 10 weeks. In total, 62 potential participants were identified using clinical tracking lists on the electronic medical records, and 34 participants were included in the final analysis.
Exposures Patients who started receiving infliximab or infliximab-abda were clinically tracked for a minimum of 10 weeks using the electronic medical record system, beginning at the time of drug initiation. Patients received loading doses of 10 mg/kg at weeks 0, 2, and 6, and then treatment was continued with a maintenance dose administered every 4 to 8 weeks.
Conclusions and Relevance This cohort study found that both infliximab administration and infliximab-abda administration were associated with similar and significant improvement in disease as measured by the Hidradenitis Suppurativa Clinical Response. Infliximab-abda is likely a reasonable treatment option for hidradenitis suppurativa, and further research is warranted.
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take inFLIXimab-abda with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
RENFLEXIS (infliximab-abda) is contraindicated in patients with moderate to severe (NYHA Class III/IV) congestive heart failure (CHF) at doses greater than 5 mg/kg. Higher mortality rates at the 10 mg/kg dose and higher rates of cardiovascular events at the 5 mg/kg dose have been observed in these patients. RENFLEXIS should be used with caution and only after consideration of other treatment options. Patients should be monitored closely. Discontinue RENFLEXIS if new or worsening CHF symptoms appear. RENFLEXIS should not be (re)administered to patients who have experienced a severe hypersensitivity reaction or to patients with hypersensitivity to murine proteins or other components of the product.
Cases of leukopenia, neutropenia, thrombocytopenia, and pancytopenia (some fatal) have been reported in patients using infliximab products. The causal relationship to infliximab therapy remains unclear. Exercise caution in patients who have ongoing or a history of significant hematologic abnormalities. Advise patients to seek immediate medical attention if they develop signs and symptoms of blood dyscrasias or infection. Consider discontinuation of RENFLEXIS (infliximab-abda) in patients who develop significant hematologic abnormalities.
Concomitant use of RENFLEXIS (infliximab-abda) with anakinra, abatacept, tocilizumab or other biologics used to treat the same conditions as RENFLEXIS is not recommended because of the possibility of an increased risk of infection. Care should be taken when switching from one biologic to another, since overlapping biological activity may further increase the risk of infection.
Please see Prescribing Information for RENFLEXIS (infliximab-abda), including the Boxed Warning about serious infections and malignancies, at _circulars/r/renflexis/renflexis_pi.pdf and Medication Guide for RENFLEXIS at www.merck.com/product/usa/pi_circulars/r/renflexis/renflexis_mg.pdf.