Tbo-Filgrastim
FDA Drug Information • Also known as: Granix
- Brand Names
- Granix
- Drug Class
- Leukocyte Growth Factor [EPC]
- Route
- SUBCUTANEOUS
- Dosage Form
- INJECTION, SOLUTION
- Product Type
- HUMAN PRESCRIPTION DRUG
Description
11 DESCRIPTION GRANIX (tbo-filgrastim) is a non-glycosylated recombinant methionyl human granulocyte colony-stimulating growth factor (r-metHuG-CSF) manufactured by recombinant DNA technology using the bacterium strain E coli K802. It has a molecular weight of approximately 18.8 kDa and is composed of 175 amino acids. The endogenous human G-CSF is glycosylated and does not have the additional methionine amino acid residue in its NH 2 terminal end. The product is a sterile, clear, colorless, preservative-free solution containing tbo-filgrastim, glacial acetic acid, sorbitol, polysorbate 80, sodium hydroxide, and Water for Injection. The product is available in single-dose prefilled syringes that contain either 300 mcg or 480 mcg of tbo-filgrastim at a fill volume of 0.5 mL or 0.8 mL, respectively and single-dose vials that contain either 300 mcg or 480 mcg of tbo-filgrastim at a fill volume of 1 mL or 1.6 mL, respectively. See table below for product composition of each presentation. Product Composition 300 mcg/0.5 mL Syringe 480 mcg/0.8 mL Syringe 300 mcg/1 mL Vial 480 mcg/1.6 mL Vial Tbo-filgrastim 300 mcg 480 mcg 300 mcg 480 mcg Glacial Acetic Acid 0.3 mg 0.48 mg 0.6 mg 0.96 mg Polysorbate 80 0.0275 mg 0.044 mg 0.055 mg 0.088 mg Sorbitol 25 mg 40 mg 50 mg 80 mg Sodium Hydroxide q.s. to pH 4.2 q.s. to pH 4.2 q.s. to pH 4.2 q.s. to pH 4.2 Water for Injection q.s. to 0.5 mL q.s. to 0.8 mL q.s. to 1 mL q.s. to 1.6 mL q.s. = quantity sufficient to make
What Is Tbo-Filgrastim Used For?
1 INDICATIONS AND USAGE GRANIX is indicated to reduce the duration of severe neutropenia in adult and pediatric patients 1 month and older with non-myeloid malignancies receiving myelosuppressive anticancer drugs associated with a clinically significant incidence of febrile neutropenia. GRANIX (tbo-filgrastim) is a leukocyte growth factor indicated in adult and pediatric patients 1 month and older for reduction in the duration of severe neutropenia in patients with non-myeloid malignancies receiving myelosuppressive anticancer drugs associated with a clinically significant incidence of febrile neutropenia. ( 1 )
Dosage and Administration
2 DOSAGE AND ADMINISTRATION Recommended dose: 5 mcg/kg per day administered as a subcutaneous injection Administer the first dose no earlier than 24 hours following myelosuppressive chemotherapy. Do not administer within 24 hours prior to chemotherapy ( 2.1 ) 2.1 Recommended Dosage The recommended dose of GRANIX is 5 mcg/kg per day administered as a subcutaneous injection. Administer the first dose of GRANIX no earlier than 24 hours following myelosuppressive chemotherapy. Do not administer GRANIX within 24 hours prior to chemotherapy. Daily dosing with GRANIX should continue until the expected neutrophil nadir is passed and the neutrophil count has recovered to the normal range. Monitor complete blood count (CBC) prior to chemotherapy and twice per week until recovery. 2.2 General Considerations for Administration GRANIX may be administered by either a healthcare professional, a patient or caregiver. Before a decision is made to allow GRANIX to be administered by a patient or caregiver, ensure that the patient is an appropriate candidate for self-administration or administration by a caregiver. Proper training on storage, preparation, and administration technique should be provided. If a patient or caregiver is not an appropriate candidate for any reason, then in such patients, GRANIX should be administered by a healthcare professional. Dispense only the prefilled syringe without a safety needle guard device to patient or caregiver. Instruct patients and caregivers to follow the Instructions for Use provided with the GRANIX prefilled syringe to properly administer an injection after training by a healthcare professional. Visually inspect parenteral drug products for particulate matter and discoloration prior to administration. Do not administer GRANIX if discoloration or particulates are observed. The prefilled syringe and vial are for single-dose only. Discard unused portions. GRANIX and all its components are not made with natural rubber latex. Recommended sites for subcutaneous GRANIX injections include the abdomen (except for the two-inch area around the navel), the front of the middle thighs, the upper outer areas of the buttocks, or the upper back portion of the upper arms. The injection site should be varied daily. GRANIX should not be injected into an area that is tender, red, bruised, or hard, or that has scars or stretch marks. 2.3 Important Administration Instructions for Healthcare Professionals Hold the syringe assembly by the open sides of the device and remove the needle shield. Expel any extra volume depending on dose needed. Inject GRANIX subcutaneously as recommended [ see Dosage and Administration (2.2) ]. Push the plunger as far as it will go to inject all the medication. Injection of the entire prefilled syringe contents is necessary to activate the needle guard. With the plunger still pressed all the way down, remove the needle from the skin. Slowly let go of the plunger and allow the empty syringe to move up inside the...
Side Effects (Adverse Reactions)
6 ADVERSE REACTIONS The following potential serious adverse reactions are discussed in greater detail in other sections of the labeling: Splenic Rupture [see Warnings and Precautions (5.1) ] Acute Respiratory Distress Syndrome [see Warnings and Precautions (5.2) ] Serious Allergic Reactions [see Warnings and Precautions (5.3) ] Sickle Cell Disorders [see Warnings and Precautions (5.4) ] Glomerulonephritis [see Warnings and Precautions (5.5) ] Capillary Leak Syndrome [see Warnings and Precautions (5.6) ] Potential for Tumor Growth Stimulatory Effects on Malignant Cells [see Warnings and Precautions (5.7) ] Myelodysplastic Syndrome and Acute Myeloid Leukemia [see Warnings and Precautions (5.8) ] Leukocytosis [ see Warnings and Precautions ( 5.9 ) ] Simultaneous Use with Chemotherapy and Radiation Therapy Not Recommended [see Warnings and Precautions ( 5.10 ) ] Aortitis [see Warnings and Precautions ( 5.12 ) ] Alveolar Hemorrhage [see Warnings and Precautions (5.13) ] Most common adverse reaction (≥1%) to GRANIX is bone pain ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Teva Pharmaceuticals at 1 ‑ 866-832-8537 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 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. Adverse Reactions in Adult Patients GRANIX clinical trials safety data are based upon the results of three randomized clinical trials in patients receiving myeloablative chemotherapy for breast cancer (N=348), lung cancer (N=240) and non-Hodgkin’s lymphoma (N=92). In the breast cancer study, 99% of patients were female, the median age was 50 years, and 86% of patients were Caucasian. In the lung cancer study, 80% of patients were male, the median age was 58 years, and 95% of patients were Caucasian. In the non-Hodgkin’s lymphoma study, 52% of patients were male, the median age was 55 years, and 88% of patients were Caucasian. In all three studies a placebo (Cycle 1 of the breast cancer study only) or a non-U.S.-approved filgrastim product were used as controls. Both GRANIX and the non-U.S.-approved filgrastim product were administered at 5 mcg/kg subcutaneously once daily beginning one day after chemotherapy for at least five days and continued to a maximum of 14 days or until an ANC of ≥10,000 x 10 6 /L after nadir was reached. Bone pain was the most frequent treatment-emergent adverse reaction that occurred in at least 1% or greater in patients treated with GRANIX at the recommended dose and was numerically two times more frequent than in the placebo group. The overall incidence of bone pain in Cycle 1 of treatment was 3.4% (3.4% GRANIX, 1.4% placebo, 7.5% non-U.S.-approved filgrastim product). Leukocytosis In clinical studies, leukocytosis (WBC counts > 100,000 x 10 6 /L) was observed in less than 1% patients with non-myeloid malignancies receiving GRANIX. No complications attributable to leukocytosis were reported in clinical studies. Additional Adverse Reactions Other adverse reactions known to occur following administration of filgrastim products include myalgia, headache, vomiting, cutaneous vasculitis and thrombocytopenia. Adverse Reactions in Pediatric Patients GRANIX clinical trials safety data in pediatric patients are based upon the results of one single-arm clinical trial in 50 pediatric patients who received myelosuppressive chemotherapy for treatment of solid tumors without marrow involvement [see Use in Special Populations ( 8.4 )] . In this study, GRANIX was administered at 5 mcg/kg subcutaneously once daily beginning one day after chemotherapy. The most common (>5%) adverse reactions included thrombocytopenia (34%), pyrexia (8%), pain in extremity (6%), headache (6%) and diarrhea (6%). 6.2 Postmarketing Experience The following adverse reactions...
Contraindications
4 CONTRAINDICATIONS GRANIX is contraindicated in patients with a history of serious allergic reactions to filgrastim products or pegfilgrastim products [ see Warnings and Precautions (5.3) ]. Patients with a history of serious allergic reactions to filgrastim products or pegfilgrastim products. ( 4 )
Pregnancy and Breastfeeding
8.1 Pregnancy Risk Summary The limited published data on filgrastim product use during pregnancy are insufficient to inform a drug-associated risk. In animal reproduction studies, administration of tbo-filgrastim to pregnant rabbits during organogenesis resulted in increased spontaneous abortion and fetal malformations at systemic exposures 50 to 90 times the human exposure expected at the recommended human dose (see Data) . GRANIX should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. The estimated background risk of major birth defects and miscarriage for the indicated population(s) are 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 2% to 4% and 15% to 20%, respectively. Data Animal Data In an embryofetal developmental study, pregnant rabbits were administered subcutaneous doses of tbo-filgrastim during the period of organogenesis at 1, 10 and 100 mcg/kg/day. Increased abortions were evident in rabbits treated with tbo-filgrastim at 100 mcg/kg/day. This dose was maternally toxic as demonstrated by reduced body weight. Other embryofetal findings at this dose level consisted of post-implantation loss‚ decrease in mean live litter size and fetal weight, and fetal malformations such as malformed hind limbs and cleft palate. The dose of 100 mcg/kg/day corresponds to a systemic exposure (AUC) of approximately 50 to 90 times the exposures observed in patients treated with the clinical tbo-filgrastim dose of 5 mcg/kg/day.
How Supplied
16 HOW SUPPLIED/STORAGE AND HANDLING GRANIX solution for injection is supplied as a single-dose, preservative-free clear solution, in either a vial or, a prefilled syringe made from Type I glass which has a permanently attached stainless steel needle. The active substance is tbo-filgrastim. Prefilled Syringes (UltraSafe Passive ® Needle Guard) GRANIX 300 mcg/0.5 mL: Each prefilled syringe contains 300 mcg of tbo-filgrastim in 0.5 mL solution with a blue plunger in: Pack of 1 with a safety needle guard in blister: NDC 63459-910-11 Packs of 10 with a safety needle guard in blisters: NDC 63459-910-15 GRANIX 480 mcg/0.8 mL: Each prefilled syringe contains 480 mcg of tbo-filgrastim in 0.8 mL solution with a clear plunger in: Pack of 1 with a safety needle guard in blister: NDC 63459-912-11 Packs of 10 with a safety needle guard in blisters: NDC 63459-912-15 Prefilled Syringes GRANIX 300 mcg/0.5 mL: Each prefilled syringe contains 300 mcg of tbo-filgrastim in 0.5 mL solution with a blue plunger in: Pack of 1 without a safety needle guard (for patients and caregivers): NDC 63459-910-17 Packs of 5 without a safety needle guard (for patients and caregivers): NDC 63459-910-36 GRANIX 480 mcg/0.8 mL: Each prefilled syringe contains 480 mcg of tbo-filgrastim in 0.8 mL solution with a clear plunger in: Pack of 1 without a safety needle guard (for patients and caregivers): NDC 63459-912-17 Packs of 5 without a safety needle guard (for patients and caregivers): NDC 63459-912-36 Vials GRANIX 300 mcg/mL: Each vial contains 300 mcg of tbo-filgrastim in 1 mL solution. Packs of 10 single-dose vials: (NDC 63459-918-59) GRANIX 480 mcg/1.6 mL (300 mcg/mL): Each vial contains 480 mcg of tbo-filgrastim in 1.6 mL solution. Packs of 10 single-dose vials: (NDC 63459-920-59) GRANIX and all its components are not made with natural rubber latex [see Dosage and Administration (2.2)] . Store GRANIX in a refrigerator at 36°F to 46°F (2°C to 8°C). Protect from light. Within its shelf life, the...
About This Information
This drug information is sourced from FDA-approved labeling via the openFDA database. It is intended for educational and reference purposes only. This is not medical advice. Always consult your healthcare provider before making decisions about medication. Drug information may be updated by the FDA; check with your pharmacist for the most current information.
What are side effects?
Side effects are unwanted reactions that can occur when taking a medication. They range from mild (headache, nausea) to severe (allergic reactions, organ damage). Not everyone experiences side effects, and severity varies. Report any concerning side effects to your doctor.
What are drug interactions?
Drug interactions occur when a medication is affected by another drug, food, or supplement. Interactions can make medications less effective or cause dangerous side effects. Always tell your doctor about all medications and supplements you take.