Skyrizi

SKYRIZI is an interleukin-23 antagonist indicated for the treatment of:

• moderate-to-severe plaque psoriasis in adults who are candidates for systemic therapy or phototherapy.
  
  
• active psoriatic arthritis in adults.
  
  
• moderately to severely active Crohn's disease in adults.
  
  
• moderately to severely active ulcerative colitis in adults.

• For the treatment of Crohn’s disease and ulcerative colitis: Obtain liver enzymes and bilirubin levels prior to initiating treatment with SKYRIZI.
  
  
• Complete all age-appropriate vaccinations as recommended by current immunization guidelines

• 150 mg administered by subcutaneous injection at Week 0, Week 4, and every 12 weeks thereafter.
  
  
• In patients with psoriatic arthritis SKYRIZI can be administered alone or in combination with non-biologic disease-modifying antirheumatic drugs (DMARDs).

• The recommended induction dosage is 600 mg administered by intravenous infusion over at least one hour at Week 0, Week 4, and Week 8. The recommended maintenance dosage is 180 mg or 360 mg administered by subcutaneous injection at Week 12, and every 8 weeks thereafter. Use the lowest effective dosage to maintain therapeutic response.  

• The recommended induction dosage is 1,200 mg administered by intravenous infusion over at least two hours at Week 0, Week 4, and Week 8. The recommended maintenance dosage is 180 mg or 360 mg administered by subcutaneous injection at Week 12, and every 8 weeks thereafter. Use the lowest effective dosage to maintain therapeutic response.

SKYRIZI Pen

• Injection: 150 mg/mL as a colorless to yellow and clear to slightly opalescent solution in each single-dose prefilled pen.

SKYRIZI Prefilled Syringe

• Injection: 90 mg/mL as a colorless to slightly yellow and clear to slightly opalescent solution in each single-dose prefilled syringe.
  
  
• Injection: 150 mg/mL as a colorless to yellow and clear to slightly opalescent solution in each single-dose prefilled syringe.
  
  
• Injection: 180 mg/1.2 mL (150 mg/mL) as a colorless to yellow and clear to slightly opalescent solution in each single-dose prefilled syringe.

SKYRIZI Prefilled Cartridge with Supplied On-Body Injector

• Injection: 180 mg/1.2 mL (150 mg/mL) as a colorless to yellow, and clear to slightly opalescent solution in each single-dose prefilled cartridge for use with the on-body injector.
  
  
• Injection: 360 mg/2.4 mL (150 mg/mL) as a colorless to yellow, and clear to slightly opalescent solution in each single-dose prefilled cartridge for use with the on-body injector.

 SKYRIZI Vial

• Injection: 600 mg/10 mL (60 mg/mL) as a colorless to slightly yellow, and clear to slightly opalescent solution in each single-dose vial.

There is a pregnancy exposure registry that monitors outcomes in women who become pregnant while treated with SKYRIZI. Patients should be encouraged to enroll by calling 1-877-302-2161 or visiting http://glowpregnancyregistry.com.

Available pharmacovigilance and clinical trial data with risankizumab use in pregnant women are insufficient to establish a drug-associated risk of major birth defects, miscarriage or other adverse maternal or fetal outcomes. Although there are no data on risankizumab-rzaa, monoclonal antibodies can be actively transported across the placenta, and SKYRIZI may cause immunosuppression in the in utero

In an enhanced pre- and post-natal developmental toxicity study, pregnant cynomolgus monkeys were administered subcutaneous doses of 5 or 50 mg/kg risankizumab-rzaa once weekly during the period of organogenesis up to parturition. Increased fetal/infant loss was noted in pregnant monkeys at the 50 mg/kg dose

All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. The background risk of major birth defects and miscarriage for the indicated population is unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively.

Clinical Considerations 

Published data suggest that the risk of adverse pregnancy outcomes in women with inflammatory bowel disease is associated with increased disease activity. Adverse pregnancy outcomes include preterm delivery (before 37 weeks of gestation), low birth weight (less than 2,500 g) infants, and small for gestational age at birth.

Transport of endogenous IgG antibodies across the placenta increases as pregnancy progresses, and peaks during the third trimester. Because risankizumab may interfere with immune response to infections, risks and benefits should be considered prior to administering live vaccines to infants exposed to SKYRIZI in utero. There are insufficient data regarding infant serum levels of risankizumab at birth and the duration of persistence of risankizumab in infant serum after birth. Although a specific timeframe to delay live virus immunizations in infants exposed in utero is unknown, a minimum of 5 months after birth should be considered because of the half-life of the product.

An enhanced pre- and post-natal developmental toxicity study was conducted in cynomolgus monkeys. Pregnant cynomolgus monkeys were administered weekly subcutaneous doses of risankizumab-rzaa of 5 or 50 mg/kg from gestation day 20 to parturition, and the cynomolgus monkeys (mother and infants) were monitored for 6 months after delivery. No maternal toxicity was noted in this study. There were no treatment-related effects on growth and development, malformations, developmental immunotoxicology, or neurobehavioral development. However, a dose-dependent increase in fetal/infant loss was noted in the risankizumab-rzaa-treated groups (32% and 43% in the 5 mg/kg and 50 mg/kg groups, respectively) compared with the vehicle control group (19%). The increased fetal/infant loss in the 50 mg/kg group was considered to be related to risankizumab-rzaa treatment. The no-observed adverse effect level (NOAEL) for maternal toxicity was identified as 50 mg/kg, and the NOAEL for developmental toxicity was identified as 5 mg/kg. The 5 mg/kg dose in pregnant monkeys resulted in approximately 0.6 times the exposure (AUC) in humans administered the maximum recommended induction dose (1,200 mg) and 5 times the exposure (AUC) in humans administered the maximum recommended maintenance dose (360 mg).   In the infants, mean serum concentrations increased in a dose-dependent manner and were approximately 17%-86% of the respective maternal concentrations. Following delivery, most adult female cynomolgus monkeys and all infants from the risankizumab-rzaa-treated groups had measurable serum concentrations of risankizumab-rzaa up to 91 days postpartum. Serum concentrations were below detectable levels at 180 days postpartum.