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Drug Interactions between givinostat and Thioplex

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

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Interactions between your drugs

Moderate

thiotepa givinostat

Applies to: Thioplex (thiotepa) and givinostat

MONITOR: Coadministration with CYP450 3A4 and/or 2B6 inhibitors may increase plasma concentrations of thiotepa and decrease concentrations of its active metabolite triethylenephosphoramide (TEPA). Thiotepa is a prodrug that is primarily converted to TEPA by these isoenzymes. A pharmacokinetic study evaluating six breast cancer patients receiving high-dose chemotherapy (cyclophosphamide 1,500 mg/m2/day, thiotepa 120 mg/m2/day, and carboplatin AUC 5 mg min/mL/day) with the moderate CYP3A4 inhibitor aprepitant (125 mg one day before chemotherapy, then 80 mg daily during and for three days after) showed a 15% increase in total thiotepa exposure, a 33% decrease in TEPA formation, and 20% reduction in TEPA exposure.

MANAGEMENT: Caution and closer monitoring for decreased efficacy and adverse effects are advised when thiotepa is used concurrently with CYP450 3A4 and/or 2B6 inhibitors. Patients should be more closely monitored for thiotepa-related toxicities such as myelosuppression, cutaneous toxicity, and neurotoxicity.

References (5)
  1. de Jonge ME, Huitema AD, Holtkamp MJ, van Dam SM, Beijnen JH, Rodenhuis S (2005) "Aprepitant inhibits cyclophosphamide bioactivation and thiotepa metabolism" Cancer Chemother Pharmacol, 56, p. 370-8
  2. (2023) "Product Information. Thiotepa (thiotepa)." Meitheal Pharmaceuticals Inc.
  3. (2023) "Product Information. Tepadina (thiotepa)." Link Medical Products Pty Ltd T/A Link Pharmaceuticals, 3
  4. (2022) "Product Information. Thiotepa (thiotepa)." MSN Laboratories Europe Ltd
  5. (2021) "Product Information. Tepadina (thiotepa)." Adienne SA

Drug and food interactions

Moderate

givinostat food

Applies to: givinostat

ADJUST DOSING INTERVAL: Food increases the systemic exposure of givinostat. An open-label, randomized, crossover, single dose food effect study conducted in 12 healthy males used givinostat liquid filled capsules. Subjects received a single oral dose of givinostat (100 mg) in the fasting state or after a high-fat standard meal, with a washout period of at least 1 week in between. The high-fat standard meal resulted in an increase in systemic exposure (AUC) and maximum plasma concentration (Cmax) of about 40% and 23%, respectively, when compared to the fasted state. Additionally, the time to maximum concentration (Tmax) was delayed slightly from 2 to 3 hours.

MANAGEMENT: Givinostat should be administered with food to increase its absorption. In the case of the oral suspension, this can also help mask its bitter taste.

References (2)
  1. (2024) "Product Information. Duvyzat (givinostat)." ITF Therapeutics, LLC
  2. Italfarmaco Spa (2024) Center for drug evaluation and research. Application number: 217865Orig1s000. Integrated review. https://www.accessdata.fda.gov/drugsatfda_docs/nda/2024/217865Orig1s000IntegratedR.pdf

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.

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