Piqray Generic Name & Formulations
Legal Class
General Description
Pharmacological Class
How Supplied
Manufacturer
Generic Availability
Mechanism of Action
Piqray Indications
Indications
In combination with fulvestrant for the treatment of adults with hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative, PIK3CA-mutated, advanced or metastatic breast cancer as detected by an FDA-approved test following progression on or after an endocrine-based regimen.
Piqray Dosage and Administration
Adult
Confirm presence of ≥1 PIK3CA mutations in tumor tissue or plasma specimens. Swallow whole. Take with food. 300mg once daily (in combination with fulvestrant 500mg on Days 1, 15, and 29, then once monthly thereafter); continue until disease progression or unacceptable toxicity. Dose modifications for adverse reactions: see full labeling.
Children
Piqray Contraindications
Not Applicable
Piqray Boxed Warnings
Not Applicable
Piqray Warnings/Precautions
Warnings/Precautions
Severe hyperglycemia. Test fasting plasma glucose (FPG), HbA1c, and optimize blood glucose prior to initiation. Consider premedication with metformin prior to initiation based on risk factors (eg, hyperglycemia, GI tolerability, clinical situation). After initiating, monitor FPG or blood glucose at least once weekly for the first 2 weeks, then at least once every 4 weeks, and as indicated. Monitor HbA1c every 3 months and as indicated. Monitor FPG more frequently during first few weeks of treatment in those with risk factors for hyperglycemia (eg, obesity, elevated FPG, HbA1c >ULN, or age ≥75). Interrupt, reduce dose, or discontinue therapy based on severity of the hyperglycemia. Diabetes. Permanently discontinue if severe hypersensitivity occurs. Prior history of severe cutaneous reactions (eg, SJS, EM, TEN, DRESS): do not reintroduce. Interrupt therapy if signs/symptoms of severe cutaneous reactions occur; permanently discontinue if confirmed. Interrupt and evaluate if new or worsening respiratory symptoms occur; permanently discontinue if pneumonitis is confirmed. Monitor for diarrhea or colitis; interrupt, reduce dose, or discontinue therapy based on severity. Severe renal impairment (CrCl <30mL/min). Embryo-fetal toxicity. Pregnancy: exclude status prior to initiation. Advise females of reproductive potential and males (w. female partners) to use effective contraception during and for 1 week after last dose. Nursing mothers: not recommended (during and for 1 week after last dose).
Piqray Pharmacokinetics
Absorption
Median time to reach peak plasma concentration: 2–4 hours.
Distribution
Apparent volume of distribution (at steady-state): 114 L. Plasma protein bound: 89%.
Elimination
Fecal (81%), renal (14%). Half-life: 8–9 hours. Clearance: 9.2 L/hr.
Piqray Interactions
Interactions
Antagonized by strong CYP3A4 inducers; avoid and consider alternatives. May be potentiated by BCRP inhibitors; avoid and use alternatives; if unavoidable, monitor closely for toxicity. Risk for hyperglycemia with concomitant systemic corticosteroids.
Piqray Adverse Reactions
Adverse Reactions
Piqray Clinical Trials
See Literature
Piqray Note
Not Applicable
Piqray Patient Counseling
See Literature