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Drug Interactions between Aplitest and lurbinectedin

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

tuberculin purified protein derivative lurbinectedin

Applies to: Aplitest (tuberculin purified protein derivative) and lurbinectedin

MONITOR: Immunosuppressed patients may have diminished response to diagnostic skin test antigens due to suppression of cell-mediated, delayed-type hypersensitivity. Falsely insignificant or false-negative results may occur in such patients, which may include those who have recently received or are receiving immunosuppressive agents, antilymphocyte globulins, alkylating agents, antimetabolites, radiation, some antirheumatic agents, high dosages of corticosteroids or adrenocorticotropic agents (e.g., greater than or equal to 2 mg/kg/day or 20 mg/day of prednisone or equivalent for 14 consecutive days or more), or long-term topical or inhaled corticosteroids.

MANAGEMENT: Clinicians should be aware of the potential for falsely insignificant or false-negative results when administering diagnostic skin test antigens to patients treated with immunosuppressive agents.

References

  1. (2001) "Product Information. Candin (candida albicans extract)." Nielsen Biosciences Inc
  2. (2001) "Product Information. Histolyn-Cyl (histoplasmin)." ALK Laboratories Inc
  3. (2001) "Product Information. Spherulin (coccidioidin skin test)." ALK Laboratories Inc
  4. (2001) "Product Information. MSTA Mumps Skin Test Antigen (mumps skin test antigen)." Aventis Pharmaceuticals
  5. (2001) "Product Information. Multitest CMI (skin test antigens, multiple)." Aventis Pharmaceuticals
  6. "Product Information. Tuberculin Tine Test (tuberculin purified protein derivative)." Connaught Laboratories Inc
View all 6 references

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Drug and food interactions

Major

lurbinectedin food

Applies to: lurbinectedin

GENERALLY AVOID: Grapefruit and Seville oranges may increase the plasma concentrations of lurbinectedin. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit and Seville oranges. Inhibition of hepatic CYP450 3A4 may also contribute. The interaction has not been studied with grapefruit or Seville oranges, but pharmacokinetic data are available for potent and moderate CYP450 3A4 inhibitors. In a clinical drug interaction study, coadministration of itraconazole, a potent CYP450 3A4 inhibitor, increased the systemic exposure (AUC) of total lurbinectedin by 2.7-fold and unbound lurbinectedin by 2.4-fold. In a Phase 1 study, coadministration of aprepitant, a moderate CYP450 3A4 inhibitor, decreased lurbinectedin plasma clearance by 33% compared to lurbinectedin alone. In general, the effect of grapefruit and Seville oranges is concentration-, dose- and preparation-dependent, and can vary widely among brands. Certain preparations of grapefruit juice and Seville oranges (e.g., high dose, double strength) have sometimes demonstrated potent inhibition of CYP450 3A4, while other preparations (e.g., low dose, single strength) have typically demonstrated moderate inhibition. Increased exposure may increase the incidence and severity of adverse reactions of lurbinectedin, such as myelosuppression and hepatotoxicity.

MANAGEMENT: Patients should avoid consumption of grapefruit, grapefruit juice, and Seville oranges during treatment with lurbinectedin.

References

  1. (2020) "Product Information. Zepzelca (lurbinectedin)." Jazz Pharmaceuticals

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Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.


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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.