Paclitaxel (Aibumin-Bound)

FDA Drug Information • Also known as: Paclitaxel

Brand Names: Paclitaxel
Drug Class: Microtubule Inhibitor [EPC]
Route: INTRAVENOUS
Dosage Form: INJECTION, POWDER, LYOPHILIZED, FOR SUSPENSION
Product Type: HUMAN PRESCRIPTION DRUG

⚠ Boxed Warning (Black Box)

WARNING: SEVERE MYELOSUPPRESSION Do not administer paclitaxel protein-bound particles for injectable suspension (albumin-bound) therapy to patients with baseline neutrophil counts of less than 1,500 cells/mm 3 [see Contraindications (4) ]. Monitor for neutropenia, which may be severe and result in infection or sepsis, it is recommended that frequent [see Warnings and Precautions (5.1 , 5.3) ]. Perform frequent complete blood cell counts on all patients receiving praclitaxel protein-bound particles for injectable suspension (albumin-bound) [see Contraindications (4) , Warnings and Precautions (5.1 , 5.3) ]. WARNING: SEVERE MYELOSUPPRESSION See full prescribing information for complete boxed warning . Do not administer paclitaxel protein-bound particles for injectable suspension (albumin-bound) therapy to patients with baseline neutrophil counts of less than 1,500 cells/mm 3 . ( 4 ) Monitor for neutropenia, which may be severe and result in infection or sepsis. ( 5.1 , 5.3 ) Perform frequent complete blood cell counts on all patients receiving paclitaxel protein-bound particles for injectable suspension (albumin-bound). ( 5.1 , 5.3 )

Description

11 DESCRIPTION Paclitaxel protein-bound particles for injectable suspension (albumin-bound) is paclitaxel formulated as albumin-bound nanoparticles with a mean particle size of approximately 130 nanometers. Paclitaxel exists in the particles in a non-crystalline, amorphous state. Paclitaxel is a microtubule inhibitor. The chemical name for paclitaxel is 5β,20-Epoxy-1,2α,4,7β,10β,13α-hexahydroxytax-11-en-9-one 4,10-diacetate 2-benzoate 13-ester with (2 R ,3 S )- N -benzoyl-3-phenylisoserine. The empirical formula is C 47 H 51 NO 14 and the molecular weight is 853.91. Paclitaxel has the following structural formula: Paclitaxel is a white to off-white crystalline powder. It is highly lipophilic, insoluble in water, and melts at approximately 216°C to 217°C. Paclitaxel protein-bound particles for injectable suspension (albumin-bound) is supplied as a white to yellow, sterile, lyophilized powder for reconstitution with 20 mL of 0.9% Sodium Chloride Injection, USP prior to intravenous infusion. Each single‑dose vial contains 100 mg of paclitaxel (bound to human albumin) and approximately 900 mg of human albumin (containing sodium caprylate and sodium acetyltryptophanate). Each milliliter (mL) of reconstituted suspension contains 5 mg paclitaxel formulated as albumin‑bound particles. Paclitaxel protein-bound particles for injectable suspension (albumin-bound) is free of solvents. image description

What Is Paclitaxel (Aibumin-Bound) Used For?

1 INDICATIONS AND USAGE Paclitaxel protein-bound particles for injectable suspension (albumin-bound) is a microtubule inhibitor indicated for the treatment of: Metastatic breast cancer, after failure of combination chemotherapy for metastatic disease or relapse within 6 months of adjuvant chemotherapy. Prior therapy should have included an anthracycline unless clinically contraindicated. ( 1.1 ) Locally advanced or metastatic non-small cell lung cancer (NSCLC), as first-line treatment in combination with carboplatin, in patients who are not candidates for curative surgery or radiation therapy. ( 1.2 ) Metastatic adenocarcinoma of the pancreas as first-line treatment, in combination with gemcitabine. ( 1.3 ) 1.1 Metastatic Breast Cancer Paclitaxel protein-bound particles for injectable suspension (albumin-bound) is indicated for the treatment of breast cancer after failure of combination chemotherapy for metastatic disease or relapse within 6 months of adjuvant chemotherapy. Prior therapy should have included an anthracycline unless clinically contraindicated. 1.2 Non-Small Cell Lung Cancer Paclitaxel protein-bound particles for injectable suspension (albumin-bound) is indicated for the first-line treatment of locally advanced or metastatic non-small cell lung cancer, in combination with carboplatin, in patients who are not candidates for curative surgery or radiation therapy. 1.3 Adenocarcinoma of the Pancreas Paclitaxel protein-bound particles for injectable suspension (albumin-bound) is indicated for the first-line treatment of patients with metastatic adenocarcinoma of the pancreas, in combination with gemcitabine.

Dosage and Administration

2 DOSAGE AND ADMINISTRATION Do not substitute paclitaxel protein-bound particles for injectable suspension (albumin-bound) for other paclitaxel products. ( 2.1 ) Extravasation : Closely monitor the infusion site for extravasation and infiltration. ( 2.1 ) Metastatic Breast Cancer (MBC) : Recommended dosage of paclitaxel protein-bound particles for injectable suspension (albumin-bound) is 260 mg/m 2 intravenously over 30 minutes every 3 weeks. ( 2. 2 ) Non-Small Cell Lung Cancer (NSCLC) : Recommended dosage of paclitaxel protein-bound particles for injectable suspension (albumin-bound) is 100 mg/m 2 intravenously over 30 minutes on Days 1, 8, and 15 of each 21-day cycle; administer carboplatin on Day 1 of each 21-day cycle immediately after paclitaxel protein-bound particles for injectable suspension (albumin-bound). ( 2.2 ) Adenocarcinoma of the Pancreas : Recommended dosage of paclitaxel protein-bound particles for injectable suspension (albumin-bound) is 125 mg/m 2 intravenously over 30-40 minutes on Days 1, 8, and 15 of each 28-day cycle; administer gemcitabine on Days 1, 8, and 15 of each 28-day cycle immediately after paclitaxel protein-bound particles for injectable suspension (albumin-bound). ( 2.4 ) Use in Patients with Hepatic Impairment: Paclitaxel protein-bound particles for injectable suspension (albumin-bound) is not recommended for use in patients with AST > 10 × ULN; or bilirubin > 5 × ULN or with metastatic adenocarcinoma of the pancreas who have moderate to severe hepatic impairment. For MBC or NSCLC, reduce starting dose in patients with moderate to severe hepatic impairment. ( 2.5 ) Dose Reductions for Adverse Reactions : Dose reductions or discontinuation may be needed based on severe hematologic, neurologic, cutaneous, or gastrointestinal toxicities. ( 2.6 ) 2.1 Important Administration Instructions DO NOT SUBSTITUTE FOR OR WITH OTHER PACLITAXEL FORMULATIONS. Paclitaxel protein-bound particles for injectable suspension (albumin-bound) has different dosage and administration instructions from other paclitaxel products. Closely monitor the infusion site for extravasation or drug infiltration during administration. Limiting the infusion of paclitaxel protein-bound particles for injectable suspension (albumin-bound) to 30 minutes may reduce the risk of infusion-related reactions [see Adverse Reactions (6.2) ] . Consider premedication in patients who have had prior hypersensitivity reactions to paclitaxel protein-bound particles for injectable suspension (albumin-bound). Do not re-challenge patients who experience a severe hypersensitivity reaction to paclitaxel protein-bound particles for injectable suspension (albumin-bound) [see Contraindications (4) and Warnings and Precautions (5.5) ] . 2.2 Recommended Dosage for Metastatic Breast Cancer After failure of combination chemotherapy for metastatic breast cancer or relapse within 6 months of adjuvant chemotherapy, the recommended regimen for paclitaxel protein-bound particles for...

Side Effects (Adverse Reactions)

6 ADVERSE REACTIONS 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 practice. The most common adverse reactions (≥ 20%) with single-agent use of paclitaxel protein-bound particles for injectable suspension (albumin-bound) in metastatic breast cancer are alopecia, neutropenia, sensory neuropathy, abnormal ECG, fatigue/asthenia, myalgia/arthralgia, AST elevation, alkaline phosphatase elevation, anemia, nausea, infections, and diarrhea [see Adverse Reactions (6.1) ] . The most common adverse reactions (≥ 20%) of paclitaxel protein-bound particles for injectable suspension (albumin-bound) in combination with carboplatin for non-small cell lung cancer are anemia, neutropenia, thrombocytopenia, alopecia, peripheral neuropathy, nausea, and fatigue [see Adverse Reactions (6.1) ]. The most common serious adverse reactions of paclitaxel protein-bound particles for injectable suspension (albumin-bound) in combination with carboplatin for non-small cell lung cancer are anemia (4%) and pneumonia (3%). The most common adverse reactions resulting in permanent discontinuation of paclitaxel protein-bound particles for injectable suspension (albumin-bound) are neutropenia (3%), thrombocytopenia (3%), and peripheral neuropathy (1%). The most common adverse reactions resulting in dose reduction of paclitaxel protein-bound particles for injectable suspension (albumin-bound) are neutropenia (24%), thrombocytopenia (13%), and anemia (6%). The most common adverse reactions leading to withholding or delay in paclitaxel protein-bound particles for injectable suspension (albumin-bound) dosing are neutropenia (41%), thrombocytopenia (30%), and anemia (16%). In a randomized open-label trial of paclitaxel protein-bound particles for injectable suspension (albumin-bound) in combination with gemcitabine for pancreatic adenocarcinoma [see Clinical Studies (14.3) ] , the most common (≥ 20%) selected (with a ≥ 5% higher incidence) adverse reactions of paclitaxel protein-bound particles for injectable suspension (albumin-bound) are neutropenia, fatigue, peripheral neuropathy, nausea, alopecia, peripheral edema, diarrhea, pyrexia, vomiting, decreased appetite, rash, and dehydration [see Adverse Reactions (6.1) ] . The most common serious adverse reactions of paclitaxel protein-bound particles for injectable suspension (albumin-bound) (with a ≥ 1% higher incidence) are pyrexia (6%), dehydration (5%), pneumonia (4%), and vomiting (4%). The most common adverse reactions resulting in permanent discontinuation of paclitaxel protein-bound particles for injectable suspension (albumin-bound)are peripheral neuropathy (8%), fatigue (4%), and thrombocytopenia (2%). The most common adverse reactions resulting in dose reduction of paclitaxel protein-bound particles for injectable suspension (albumin-bound) are neutropenia (10%) and peripheral neuropathy (6%). The most common adverse reactions leading to withholding or delay in paclitaxel protein-bound particles for injectable suspension (albumin-bound) dosing are neutropenia (16%), thrombocytopenia (12%), fatigue (8%), peripheral neuropathy (15%), anemia (5%), and diarrhea (5%). The most common adverse reactions (≥ 20%) in metastatic breast cancer are alopecia, neutropenia, sensory neuropathy, abnormal ECG, fatigue/asthenia, myalgia/arthralgia, AST elevation, alkaline phosphatase elevation, anemia, nausea, infections, and diarrhea. ( 6.1 ) The most common adverse reactions (≥ 20%) in NSCLC are anemia, neutropenia, thrombocytopenia, alopecia, peripheral neuropathy, nausea, and fatigue. ( 6.1 ) The most common (≥ 20%) adverse reactions of paclitaxel protein-bound particles for injectable suspension (albumin-bound) in adenocarcinoma of the pancreas are neutropenia, fatigue, peripheral neuropathy, nausea, alopecia, peripheral...

Drug Interactions

7 DRUG INTERACTIONS The metabolism of paclitaxel is catalyzed by CYP2C8 and CYP3A4. Caution should be exercised when administering paclitaxel (albumin-bound) concomitantly with medicines known to inhibit or induce either CYP2C8 or CYP3A4. Use caution when concomitantly administering paclitaxel (albumin-bound) with inhibitors or inducers of either CYP2C8 or CYP3A4. ( 7 )

Contraindications

4 CONTRAINDICATIONS Paclitaxel protein-bound particles for injectable suspension (albumin-bound) is contraindicated in patients with: Baseline neutrophil counts of < 1,500 cells/mm 3 [see Warnings and Precautions (5.1) ] A history of severe hypersensitivity reactions to paclitaxel protein-bound particles for injectable suspension (albumin-bound) [see Warnings and Precautions (5.5) ] Neutrophil counts of < 1,500 cells/mm 3 . ( 4 ) Severe hypersensitivity reactions to paclitaxel protein-bound particles for injectable suspension (albumin-bound). ( 4 )

Pregnancy and Breastfeeding

8.1 Pregnancy Risk Summary Based on its mechanism of action and findings in animals, paclitaxel (albumin-bound) can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology (12.1) ] . There are no available human data on paclitaxel (albumin-bound) use in pregnant women to inform the drug-associated risk. In animal reproduction studies, administration of paclitaxel formulated as albumin-bound particles to pregnant rats during the period of organogenesis resulted in embryo-fetal toxicity at doses approximately 2% of the daily maximum recommended human dose on a mg/m 2 basis ( see Data ). Advise females of reproductive potential of the potential risk to a fetus. The background rate of major birth defects and miscarriage is unknown for the indicated population. 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 embryo-fetal development studies, intravenous administration of paclitaxel formulated as albumin-bound particles to rats during pregnancy, on gestation days 7 to 17 at doses of 6 mg/m 2 (approximately 2% of the daily maximum recommended human dose on a mg/m 2 basis) caused embryo-fetal toxicities, as indicated by intrauterine mortality, increased resorptions (up to 5-fold), reduced numbers of litters and live fetuses, reduction in fetal body weight, and increase in fetal anomalies. Fetal anomalies included soft tissue and skeletal malformations, such as eye bulge, folded retina, microphthalmia, and dilation of brain ventricles.

Overdosage

10 OVERDOSAGE There is no known antidote for paclitaxel protein-bound particles for injectable suspension (albumin-bound) overdosage. The primary anticipated complications of overdosage would consist of bone marrow suppression, sensory neurotoxicity, and mucositis.

How Supplied

16 HOW SUPPLIED/STORAGE AND HANDLING Paclitaxel protein-bound particles for injectable suspension (albumin-bound) is a white to yellow, sterile lyophilized powder supplied as: NDC No. : 75007-041-01 100 mg of paclitaxel in a single-dose vial, individually packaged in a carton. Store the vials in original cartons at 20°C to 25°C (68°F to 77°F). Retain in the original package to protect from bright light. Paclitaxel protein-bound particles for injectable suspension (albumin-bound) is a cytotoxic drug. Follow applicable special handling and disposal procedures. 1 Discard unused portion.

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.