Retifanlimab-dlwr
Generic Name: retifanlimab-dlwr
Brand Names:
Zynyz
11 DESCRIPTION Retifanlimab-dlwr is a programmed death receptor-1 (PD-1)–blocking antibody. Retifanlimab‑dlwr is a humanized IgG4 kappa monoclonal antibody produced in Chinese hamster ovary cells. Retifanlimab-dlwr has an approximate molecular weight of 148 kDa. ZYNYZ (retifanlimab-dlwr) injection is a sterile, preservative-free, clear to slightly opalescent, colorless to pale yellow solution for intravenous use. The solution is free from visible particles.
Overview
11 DESCRIPTION Retifanlimab-dlwr is a programmed death receptor-1 (PD-1)–blocking antibody. Retifanlimab‑dlwr is a humanized IgG4 kappa monoclonal antibody produced in Chinese hamster ovary cells. Retifanlimab-dlwr has an approximate molecular weight of 148 kDa. ZYNYZ (retifanlimab-dlwr) injection is a sterile, preservative-free, clear to slightly opalescent, colorless to pale yellow solution for intravenous use. The solution is free from visible particles.
Uses
1 INDICATIONS AND USAGE ZYNYZ is a programmed death receptor-1 (PD-1)–blocking antibody indicated: Squamous Cell Carcinoma of the Anal Canal (SCAC) in combination with carboplatin and paclitaxel for the first-line treatment of adult patients with inoperable locally recurrent or metastatic squamous cell carcinoma of the anal canal (SCAC). ( 1.1 ) as a single agent for the treatment of adult patients with locally recurrent or metastatic SCAC with disease progression on or intolerance to platinum-based chemotherapy. ( 1.1 ) Merkel Cell Carcinoma (MCC) for the treatment of adult patients with metastatic or recurrent locally advanced Merkel cell carcinoma (MCC).
Dosage
2 DOSAGE AND ADMINISTRATION The recommended dosage of ZYNYZ is 500 mg as an intravenous infusion over 30 minutes every 4 weeks. ( 2.1 ) See full prescribing information for dosage modifications for adverse reactions ( 2.2 ) and preparation and administration instructions. ( 2.3 ) 2.1 Recommended Dosage The recommended dosages of ZYNYZ are provided in Table 1. Administer ZYNYZ as an intravenous infusion after dilution, over 30 minutes, as recommended [see Dosage and Administration ( 2.3 )] . Table 1: Recommended Dosage of ZYNYZ Indication Recommended Dosage of ZYNYZ Duration of Treatment Combination Therapy Refer to the Prescribing Information for the agents administered in combination with ZYNYZ for recommended dosing information, as appropriate.
Side Effects
6 ADVERSE REACTIONS The following adverse reactions are described elsewhere in the labeling. Severe and Fatal Immune-Mediated Adverse Reactions [see Warnings and Precautions ( 5.1 )] Infusion-Related Reactions [see Warnings and Precautions ( 5.2 )] Complications of Allogeneic HSCT [see Warnings and Precautions ( 5.3 )] ZYNYZ in Combination with Carboplatin and Paclitaxel In patients with SCAC, the most common (≥ 20%) adverse reactions are fatigue, peripheral neuropathy, nausea, alopecia, diarrhea, musculoskeletal pain, constipation, hemorrhage, rash, vomiting, decreased appetite, pruritus, and abdominal pain.
Warnings
5 WARNINGS AND PRECAUTIONS Immune-Mediated Adverse Reactions ( 5.1 ) Immune-mediated adverse reactions, which may be severe or fatal, can occur in any organ system or tissue, including the following: immune-mediated pneumonitis, immune-mediated colitis, immune‑mediated hepatitis, immune-mediated endocrinopathies, immune-mediated nephritis with renal dysfunction, and immune‑mediated dermatologic adverse reactions, and solid organ transplant rejection. Monitor for early identification and management. Evaluate liver enzymes, creatinine, and thyroid function at baseline and periodically during treatment. Withhold or permanently discontinue ZYNYZ and administer corticosteroids based on the severity of reaction. 4 CONTRAINDICATIONS None. None. ( 4 )
Pregnancy
8.1 Pregnancy Risk Summary Based on its mechanism of action, ZYNYZ can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology ( 12.1 )] . There are no available data on the use of ZYNYZ in pregnant women. Animal studies have demonstrated that inhibition of the PD‑1/PD‑L1 pathway can lead to increased risk of immune-mediated rejection of the developing fetus resulting in fetal death ( see Data ). Human IgG4 immunoglobulins (IgG4) are known to cross the placenta; therefore, retifanlimab-dlwr has the potential to be transmitted from the mother to the developing fetus.
Storage
16 HOW SUPPLIED/STORAGE AND HANDLING ZYNYZ (retifanlimab-dlwr) injection is a clear to slightly opalescent, colorless to pale yellow solution. It is supplied in a carton containing one single-dose vial of: 500 mg/20 mL (25 mg/mL) (NDC 50881-006-03) Store refrigerated at 2°C to 8°C (36°F to 46°F) in the original carton to protect from light. Do not freeze or shake.
Frequently Asked Questions
What is Retifanlimab-dlwr used for?▼
1 INDICATIONS AND USAGE ZYNYZ is a programmed death receptor-1 (PD-1)–blocking antibody indicated: Squamous Cell Carcinoma of the Anal Canal (SCAC) in combination with carboplatin and paclitaxel for the first-line treatment of adult patients with inoperable locally recurrent or metastatic squamous cell carcinoma of the anal canal (SCAC). ( 1.1 ) as a single agent for the treatment of adult patients with locally recurrent or metastatic SCAC with disease progression on or intolerance to platinum-based chemotherapy. ( 1.1 ) Merkel Cell Carcinoma (MCC) for the treatment of adult patients with metastatic or recurrent locally advanced Merkel cell carcinoma (MCC).
What are the side effects of Retifanlimab-dlwr?▼
6 ADVERSE REACTIONS The following adverse reactions are described elsewhere in the labeling. Severe and Fatal Immune-Mediated Adverse Reactions [see Warnings and Precautions ( 5.1 )] Infusion-Related Reactions [see Warnings and Precautions ( 5.2 )] Complications of Allogeneic HSCT [see Warnings and Precautions ( 5.3 )] ZYNYZ in Combination with Carboplatin and Paclitaxel In patients with SCAC, the most common (≥ 20%) adverse reactions are fatigue, peripheral neuropathy, nausea, alopecia, diarrhea, musculoskeletal pain, constipation, hemorrhage, rash, vomiting, decreased appetite, pruritus, and abdominal pain.
Can I take Retifanlimab-dlwr during pregnancy?▼
8.1 Pregnancy Risk Summary Based on its mechanism of action, ZYNYZ can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology ( 12.1 )] . There are no available data on the use of ZYNYZ in pregnant women. Animal studies have demonstrated that inhibition of the PD‑1/PD‑L1 pathway can lead to increased risk of immune-mediated rejection of the developing fetus resulting in fetal death ( see Data ). Human IgG4 immunoglobulins (IgG4) are known to cross the placenta; therefore, retifanlimab-dlwr has the potential to be transmitted from the mother to the developing fetus.
What are the important warnings for Retifanlimab-dlwr?▼
5 WARNINGS AND PRECAUTIONS Immune-Mediated Adverse Reactions ( 5.1 ) Immune-mediated adverse reactions, which may be severe or fatal, can occur in any organ system or tissue, including the following: immune-mediated pneumonitis, immune-mediated colitis, immune‑mediated hepatitis, immune-mediated endocrinopathies, immune-mediated nephritis with renal dysfunction, and immune‑mediated dermatologic adverse reactions, and solid organ transplant rejection. Monitor for early identification and management. Evaluate liver enzymes, creatinine, and thyroid function at baseline and periodically during treatment. Withhold or permanently discontinue ZYNYZ and administer corticosteroids based on the severity of reaction. 4 CONTRAINDICATIONS None. None. ( 4 )
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Medical Disclaimer
This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.