Drugs to Avoid in Patients on Tyrosine Kinase Inhibitors

Editor’s note: More and more people with cancer are being treated with drugs known as tyrosine kinase inhibitors (TKIs). As with any other drug, oncologists who prescribe TKIs must be aware of other drugs a patient is taking to ensure there will not be a dangerous drug-drug interaction. Researchers recently published a report outlining known and potential drug-drug interactions between TKIs and other drugs. Oncologists and patients may wish to take these into account when considering cancer treatment with TKIs.

“With the rapid and widespread uptake of tyrosine kinase inhibitors (TKIs) in oncology over the past several years, serious drug–drug interactions are an “increasing risk,” according a new report.

“To guarantee the safe use of TKIs, ‘a drugs review for each patient is needed,’ write Frank G.A. Jansman, PharmD, PhD, from Deventer Hospital in the Netherlands, and colleagues in a review published in the July issue of the Lancet Oncology.

“The review provides a comprehensive overview of known and suspected interactions between TKIs and conventional prescribed drugs, over-the-counter drugs, and herbal medicines.

“All 15 TKIs approved to date by the US Food and Drug Administration or the European Medicines Agency are evaluated.

“They are axitinib (Inlyta, Pfizer), crizotinib (Xalkori, Pfizer), dasatinib (Sprycel, Bristol-Myers Squibb and Otsuka America), erlotinib (Tarceva, Osi Pharmaceuticals), gefitinib (Iressa, AstraZeneca), imatinib (Gleevec, Novartis), lapatinib (Tykerb, GlaxoSmithKline), nilotinib (Tasigna, Novartis), pazopanib (Votrient, GlaxoSmithKline), regorafenib (Stivarga, Bayer), ruxolitinib (Jakafi, Incyte), sorafenib (Nexavar, Bayer), sunitinib (Sutent, Pfizer), vandetanib (Caprelsa, AstraZeneca), and vemurafenib (Zelboraf, Roche).”


Anti-PD-1 Antibody MK-3475 Advances Into Multiple Tumor Types

“Merck announced the signing of three separate clinical collaboration agreements to evaluate the potential of its investigational anti-PD-1 immunotherapy MK-3475 across multiple tumor types.  The agreements, of which financial terms were not disclosed, were signed through subsidiaries with Amgen Inc., Incyte Corporation, and Pfizer Inc.

“As part of the new collaborations, Merck will begin several clinical trials. In these phase I/II studies, MK-3475 will be explored in combination with axitinib in renal cell carcinoma, talimogene laherparepvec (T-VEC) in previously untreated advanced melanoma, the immunotherapy INCB24360 in previously treated metastatic recurrent non-small cell lung cancer (NSCLC), and PF-2566 in multiple cancer types. Separate from these collaborations, Merck announced that the safety and efficacy of MK-3475 monotherapy would be evaluated in a phase I “signal finding” study in 20 PD-L1-positive solid tumor types not previously studied.”


Anti-PD-1 Antibody MK-3475 Advances Into Multiple Tumor Types

“Merck announced the signing of three separate clinical collaboration agreements to evaluate the potential of its investigational anti-PD-1 immunotherapy MK-3475 across multiple tumor types.  The agreements, of which financial terms were not disclosed, were signed through subsidiaries with Amgen Inc., Incyte Corporation, and Pfizer Inc.

“As part of the new collaborations, Merck will begin several clinical trials. In these phase I/II studies, MK-3475 will be explored in combination with axitinib in renal cell carcinoma, talimogene laherparepvec (T-VEC) in previously untreated advanced melanoma, the immunotherapy INCB24360 in previously treated metastatic recurrent non-small cell lung cancer (NSCLC), and PF-2566 in multiple cancer types. Separate from these collaborations, Merck announced that the safety and efficacy of MK-3475 monotherapy would be evaluated in a phase I “signal finding” study in 20 PD-L1-positive solid tumor types not previously studied.”


Anti-PD-1 Antibody MK-3475 Advances Into Multiple Tumor Types

“Merck announced the signing of three separate clinical collaboration agreements to evaluate the potential of its investigational anti-PD-1 immunotherapy MK-3475 across multiple tumor types.  The agreements, of which financial terms were not disclosed, were signed through subsidiaries with Amgen Inc., Incyte Corporation, and Pfizer Inc.

“As part of the new collaborations, Merck will begin several clinical trials. In these phase I/II studies, MK-3475 will be explored in combination with axitinib in renal cell carcinoma, talimogene laherparepvec (T-VEC) in previously untreated advanced melanoma, the immunotherapy INCB24360 in previously treated metastatic recurrent non-small cell lung cancer (NSCLC), and PF-2566 in multiple cancer types. Separate from these collaborations, Merck announced that the safety and efficacy of MK-3475 monotherapy would be evaluated in a phase I “signal finding” study in 20 PD-L1-positive solid tumor types not previously studied.”