Flyrcado Drug Information

FLYRCADO is indicated for positron emission tomography (PET) myocardial perfusion imaging (MPI) under rest or stress (pharmacologic or exercise) in adult patients with known or suspected coronary artery disease (CAD) to evaluate for myocardial ischemia and infarction.

Radiation Safety – Drug Handling Handle FLYRCADO with appropriate safety measures to minimize radiation exposure. Use waterproof gloves and effective shielding, including lead-glass syringe shields, when handling and administering FLYRCADO. Radioactive drugs should be used by or under the control of healthcare providers who are qualified by specific training and experience in the safe use and handling of radionuclides, and whose experience and training have been approved by the appropriate governmental agency authorized to license the use of radionuclides.

Recommended Dosage, Preparation, and Administration Instructions Recommended Dosage The recommended activity for each type of examination is presented in Table 1. Administer two doses by intravenous injection, one for rest imaging and one for stress imaging, using either pharmacologic or exercise stress, in either a 1-day or 2-day protocol. If performing a combined exercise/pharmacologic stress protocol, administer the recommended activity for pharmacologic stress.

When rest and stress imaging are performed on the same day, the recommended minimum stress activity is 2-fold the rest activity for pharmacologic stress and 3-fold the rest activity for exercise stress to provide adequate image quality and obscure residual signal from the first acquisition. The recommended maximum total volume administered in one day is 6.1 mL. Table 1 – Recommended Administered Activities of FLYRCADO in Adults for Patient Preparation Instruct patients to drink water to ensure adequate hydration prior to administration of FLYRCADO and to continue drinking and voiding frequently during the first hours following administration to reduce radiation exposure.

Drug Preparation Use aseptic technique and radiation shielding to withdraw and administer FLYRCADO. Calculate the necessary volume to administer based on calibration time and activity using a suitably calibrated instrument. Visually inspect FLYRCADO for particulate matter and discoloration prior to administration and do not use if either is observed.

Ensure the correct syringe is used and has adequate volume (at least 1 mL to 2 mL) so that the activity in the syringe can be administered without excessive dead volume loss. Measure patient dose using a dose calibrator immediately before administration. Do not use and discard FLYRCADO 8 hours after end of synthesis or when the activity falls below the activity requirement at the time of injection, whichever is earlier.

FLYRCADO may be diluted aseptically with 0.9% Sodium Chloride Injection, USP. Diluted product should be used within 8 hours after end of synthesis or when the activity falls below the activity requirement at the time of injection, whichever is earlier. Dispose of unused product in a safe manner and in compliance with applicable regulations.

Administration Instructions Administer FLYRCADO via intravenous injection as a bolus lasting less than 10 seconds and immediately follow with a flush of 0.9% Sodium Chloride Injection, USP. The minimum time between rest and stress dose administration is: 30 minutes when using pharmacologic stress 60 minutes when using exercise stress When using pharmacologic stress, administer FLYRCADO at the time of peak vasodilation according to the prescribing information for the stress agent, using an intravenous port different from the one used for the stress agent. When using exercise stress, administer FLYRCADO after the patient reaches at least 85% of their age-predicted maximum heart rate or exhibits ischemic signs or symptoms.

The patient should then continue to exercise for approximately 1 minute to 2 minutes after the injection. If the patient cannot achieve the target heart rate, the examination may be converted to pharmacologic stress.

Image Acquisition Instructions

For rest and stress imaging, image reconstruction should include attenuation correction. Rest Imaging Begin the PET acquisition 5 minutes after FLYRCADO administration and acquire images for 10 minutes using a scanner in 3D mode. Optionally, dynamic imaging may be performed, starting immediately prior to the injection of FLYRCADO.

Exercise Stress Imaging Once the patient has been positioned on the scanner and respiration has begun to return to normal, begin image acquisition (about 15 minutes to 25 minutes after administration of FLYRCADO).

Radiation Dosimetry Table 2 shows the estimated radiation absorbed doses per unit of injected activity. Under the same conditions, the absorbed dose to the target organ (heart wall) is 5.3 mGy, 22 mGy, and 14 mGy for each administered activity, respectively. The use of a CT scan to calculate attenuation correction for the reconstruction of FLYRCADO PET images (as done in PET/CT imaging) will add radiation exposure.

Clinical Trials Experience

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice. All 1,600 subjects were dosed under rest conditions, with a mean dose of 102 MBq (2.8 mCi) FLYRCADO. Stress testing procedures are associated with serious adverse reactions.

Adverse reactions occurring in ≥2% subjects receiving FLYRCADO during PET MPI under rest and stress (pharmacologic or exercise) are presented in Table 3. Table 3. Adverse Reactions Reported in ≥2% of Subjects During FLYRCADO PET MPI Under Rest and Stress (Pharmacologic or Exercise) 4 Adverse reactions occurring during FLYRCADO PET MPI under rest and stress (pharmacologic or exercise) in <2% of subjects included diarrhea, palpitations, back pain, cardiac conduction disturbance, rash, dysgeusia, cough, hypotension, anxiety, vomiting, pruritus, bronchospasm, dry mouth, blood pressure elevation, syncope, and wheezing.

Pregnancy Risk Summary There are no data on use of flurpiridaz F 18 in pregnant women to evaluate for a drug-associated risk of major birth defects, miscarriage, or other adverse maternal or fetal outcomes. All radiopharmaceuticals, including FLYRCADO, have the potential to cause fetal harm depending on the fetal stage of development and the magnitude of the radiation dose. If considering FLYRCADO administration to a pregnant woman, inform the patient about the potential for adverse pregnancy outcomes based on the radiation dose from flurpiridaz F 18 and the gestational timing of exposure.

FLYRCADO contains ethanol (a maximum daily dose of 337 mg anhydrous ethanol). The lower limit of safety for ethanol use during pregnancy has not been established. Published studies have demonstrated that ethanol is associated with fetal harm including central nervous system abnormalities, behavioral disorders, and impaired intellectual development.

If considering FLYRCADO administration to a pregnant woman, inform the patient about the potential for adverse pregnancy outcomes associated with ethanol exposure during pregnancy. The background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes.

In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is respectively.

Pediatric Use Safety and effectiveness of FLYRCADO in pediatric patients have not been established.