Enhertu Generic Name & Formulations
Legal Class
Rx
General Description
Fam-trastuzumab deruxtecan-nxki 100mg; per vial; lyophilized pwd for IV infusion after reconstitution and dilution; preservative-free.
Pharmacological Class
HER2-directed antibody + topoisomerase inhibitor conjugate.
How Supplied
Single-dose vial—1
Manufacturer
Generic Availability
NO
Enhertu Indications
Indications
In adults with unresectable or metastatic HER2-positive breast cancer who have received a prior anti-HER2-based regimen either: in the metastatic setting, or in the neoadjuvant or adjuvant setting and have developed disease recurrence during or within 6 months of completing therapy. In adults with unresectable or metastatic HER2-low (IHC 1+ or IHC 2+/ISH-) breast cancer who have received prior chemotherapy in the metastatic setting or developed disease recurrence during or within 6 months of completing adjuvant chemotherapy.
Enhertu Dosage and Administration
Adult
Give as IV infusion over 90mins; may give subsequent infusions over 30mins if prior infusions tolerated. 5.4mg/kg once every 3 weeks (21-day cycle) until disease progression or unacceptable toxicity. Prior to initiation, premedicate with prophylactic antiemetics. Dose modifications: see full labeling.
Children
Not established.
Enhertu Contraindications
Not Applicable
Enhertu Boxed Warnings
Boxed Warning
Interstitial lung disease. Embryo-fetal toxicity.
Enhertu Warnings/Precautions
Warnings/Precautions
Not substitutable for or with trastuzumab or ado-trastuzumab emtansine. Monitor for new or worsening respiratory symptoms; permanently discontinue if symptomatic (grade ≥2) interstitial lung disease (ILD)/pneumonitis develops. Monitor CBCs prior to initiation and each dose, then as clinically indicated; interrupt or reduce dose based on severity of neutropenia. Risk of left ventricular dysfunction. Assess LVEF prior to initiation and at regular intervals during treatment as clinically indicated; permanently discontinue if LVEF <40% or absolute decrease from baseline >20% is confirmed. Permanently discontinue in patients with symptomatic CHF or if severe infusion reactions occur. History of clinically significant cardiac disease or LVEF <50% prior to initiation of treatment: not studied. Moderate renal (CrCl ≥30–<60mL/min) or moderate hepatic (total bilirubin >1.5–3×ULN and any AST) impairment: monitor closely. Severe renal (CrCL <30mL/min) or severe hepatic (total bilirubin >3×ULN and any AST) impairment: dosage has not been established. Embryo-fetal toxicity (oligohydramnios, others). Advise to use effective contraception during and for ≥7 months (females) or ≥4 months (males w. female partners) after the last dose. Pregnancy: exclude status prior to initiation. Nursing mothers: not recommended (during and for 7 months after the last dose).
Enhertu Pharmacokinetics
See Literature
Enhertu Interactions
Not Applicable
Enhertu Adverse Reactions
Adverse Reactions
Nausea, decreased blood counts (WBC, hemoglobin, neutrophil, platelet, lymphocyte), increased AST/ALT, increased blood alkaline phosphatase, increased blood bilirubin, fatigue, vomiting, alopecia, constipation, decreased appetite, anemia, diarrhea, hypokalemia, cough, pyrexia, musculoskeletal pain, respiratory infection, headache, abdominal pain.
Enhertu Clinical Trials
See Literature
Enhertu Note
Not Applicable
Enhertu Patient Counseling
See Literature
Enhertu Generic Name & Formulations
Legal Class
Rx
General Description
Fam-trastuzumab deruxtecan-nxki 100mg; per vial; lyophilized pwd for IV infusion after reconstitution and dilution; preservative-free.
Pharmacological Class
HER2-directed antibody + topoisomerase inhibitor conjugate.
How Supplied
Single-dose vial—1
Manufacturer
Generic Availability
NO
Enhertu Indications
Indications
In adults with locally advanced or metastatic HER2-positive gastric or gastroesophageal junction (GEJ) adenocarcinoma who have received a prior trastuzumab-based regimen.
Enhertu Dosage and Administration
Adult
Give as IV infusion over 90mins; may give subsequent infusions over 30mins if prior infusions tolerated. 6.4mg/kg once every 3 weeks (21-day cycle) until disease progression or unacceptable toxicity. Prior to initiation, premedicate with prophylactic antiemetics. Dose modifications: see full labeling.
Children
Not established.
Enhertu Contraindications
Not Applicable
Enhertu Boxed Warnings
Boxed Warning
Interstitial lung disease. Embryo-fetal toxicity.
Enhertu Warnings/Precautions
Warnings/Precautions
Not substitutable for or with trastuzumab or ado-trastuzumab emtansine. Monitor for new or worsening respiratory symptoms; permanently discontinue if symptomatic (grade ≥2) interstitial lung disease (ILD)/pneumonitis develops. Monitor CBCs prior to initiation and each dose, then as clinically indicated; interrupt or reduce dose based on severity of neutropenia. Risk of left ventricular dysfunction. Assess LVEF prior to initiation and at regular intervals during treatment as clinically indicated; permanently discontinue if LVEF <40% or absolute decrease from baseline >20% is confirmed. Permanently discontinue in patients with symptomatic CHF or if severe infusion reactions occur. History of clinically significant cardiac disease or LVEF <50% prior to initiation of treatment: not studied. Moderate renal (CrCl ≥30–<60mL/min) or moderate hepatic (total bilirubin >1.5–3×ULN and any AST) impairment: monitor closely. Severe renal (CrCL <30mL/min) or severe hepatic (total bilirubin >3×ULN and any AST) impairment: dosage has not been established. Embryo-fetal toxicity (oligohydramnios, others). Advise to use effective contraception during and for ≥7 months (females) or ≥4 months (males w. female partners) after the last dose. Pregnancy: exclude status prior to initiation. Nursing mothers: not recommended (during and for 7 months after the last dose).
Enhertu Pharmacokinetics
See Literature
Enhertu Interactions
Not Applicable
Enhertu Adverse Reactions
Adverse Reactions
Nausea, decreased blood counts (WBC, hemoglobin, neutrophil, platelet, lymphocyte), increased AST/ALT, increased blood alkaline phosphatase, increased blood bilirubin, fatigue, vomiting, alopecia, constipation, decreased appetite, anemia, diarrhea, hypokalemia, cough, pyrexia, musculoskeletal pain, respiratory infection, headache, abdominal pain.
Enhertu Clinical Trials
See Literature
Enhertu Note
Not Applicable
Enhertu Patient Counseling
See Literature
Enhertu Generic Name & Formulations
Legal Class
Rx
General Description
Fam-trastuzumab deruxtecan-nxki 100mg; per vial; lyophilized pwd for IV infusion after reconstitution and dilution; preservative-free.
Pharmacological Class
HER2-directed antibody + topoisomerase inhibitor conjugate.
How Supplied
Single-dose vial—1
Manufacturer
Generic Availability
NO
Enhertu Indications
Indications
In adults with unresectable or metastatic non-small cell lung cancer (NSCLC) whose tumors have activating HER2 (ERBB2) mutations, as detected by an FDA-approved test, and who have received a prior systemic therapy.
Enhertu Dosage and Administration
Adult
Give as IV infusion over 90mins; may give subsequent infusions over 30mins if prior infusions tolerated. 5.4mg/kg once every 3 weeks (21-day cycle) until disease progression or unacceptable toxicity. Prior to initiation, premedicate with prophylactic antiemetics. Dose modifications: see full labeling.
Children
Not established.
Enhertu Contraindications
Not Applicable
Enhertu Boxed Warnings
Boxed Warning
Interstitial lung disease. Embryo-fetal toxicity.
Enhertu Warnings/Precautions
Warnings/Precautions
Not substitutable for or with trastuzumab or ado-trastuzumab emtansine. Monitor for new or worsening respiratory symptoms; permanently discontinue if symptomatic (grade ≥2) interstitial lung disease (ILD)/pneumonitis develops. Monitor CBCs prior to initiation and each dose, then as clinically indicated; interrupt or reduce dose based on severity of neutropenia. Risk of left ventricular dysfunction. Assess LVEF prior to initiation and at regular intervals during treatment as clinically indicated; permanently discontinue if LVEF <40% or absolute decrease from baseline >20% is confirmed. Permanently discontinue in patients with symptomatic CHF or if severe infusion reactions occur. History of clinically significant cardiac disease or LVEF <50% prior to initiation of treatment: not studied. Moderate renal (CrCl ≥30–<60mL/min) or moderate hepatic (total bilirubin >1.5–3×ULN and any AST) impairment: monitor closely. Severe renal (CrCL <30mL/min) or severe hepatic (total bilirubin >3×ULN and any AST) impairment: dosage has not been established. Embryo-fetal toxicity (oligohydramnios, others). Advise to use effective contraception during and for ≥7 months (females) or ≥4 months (males w. female partners) after the last dose. Pregnancy: exclude status prior to initiation. Nursing mothers: not recommended (during and for 7 months after the last dose).
Enhertu Pharmacokinetics
See Literature
Enhertu Interactions
Not Applicable
Enhertu Adverse Reactions
Adverse Reactions
Nausea, decreased blood counts (WBC, hemoglobin, neutrophil, platelet, lymphocyte), increased AST/ALT, increased blood alkaline phosphatase, increased blood bilirubin, fatigue, vomiting, alopecia, constipation, decreased appetite, anemia, diarrhea, hypokalemia, cough, pyrexia, musculoskeletal pain, respiratory infection, headache, abdominal pain.
Enhertu Clinical Trials
See Literature
Enhertu Note
Not Applicable
Enhertu Patient Counseling
See Literature