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Table 1 Interactions Detected by Protocol Guidance and Lexicomp® Including Their Mechanism of Interaction and Clinical Relevance

From: Prevalence of drug-drug interactions in oncology patients enrolled on National Clinical Trials Network oncology clinical trials

Study Agent(s)

Interacting Drug (n with interaction)

Protocol Guidance

Lexicomp®

Clinically Relevanta

Interaction Mechanism

everolimus

carvedilol (2)

Avoid

yes

yes

P-gp

dasatinib

antacids (1)

Avoid

yes

yes

pH

vemurafenib

ondansetron (1)

Avoid

yes

yes

QT

dabrafenib

amlodipine (2)

Avoid

yes

no

CYP450

vemurafenib

venlafaxine (1)

Avoid

yes

no

QT

cabozantinib

ondansetron (1)

Avoid

no

no

QT

ipilimumab, nivolumab

ondansetron (2)

Avoid

no

no

QT

dabrafenib

omeprazoleb (1)

Caution

yes

no

pH

dabrafenib

atorvastatin (1)

Caution

yes

no

CYP450

dabrafenib

omeprazolec (1)

Caution

yes

no

CYP450

olaparib

cetirizine (1)

Caution

no

no

P-gp

olaparib

ranitidine (1)

Caution

no

no

P-gp

testosterone

dabigatran (1)

Caution

no

no

anticoagulation

trametinib

duloxetine (1)

Caution

no

no

protein binding

trametinib

olanzapine (1)

Caution

no

no

protein binding

enzalutamide

amlodipine (2)

None

yes

yes

CYP450

enzalutamide

citalopram (1)

None

yes

yes

CYP450

enzalutamide

diltiazem (1)

None

yes

yes

CYP450

enzalutamide

omeprazole (1)

None

yes

yes

CYP450

enzalutamide

tramadol (2)

None

yes

yes

CYP450

enzalutamide

venlafaxine (1)

None

yes

yes

CYP450

crizotinib

escitalopram (1)

None

yes

yes

QT

dabrafenib

tamsulosin (1)

None

yes

no

CYP450

enzalutamide

alprazolam (1)

None

yes

no

CYP450

enzalutamide

hydrocodone (1)

None

yes

no

CYP450

enzalutamide

modafinil (1)

None

yes

no

CYP450

enzalutamide

ondansetron (2)

None

yes

no

CYP450

enzalutamide

tamsulosin (1)

None

yes

no

CYP450

dexamethasone

echinacea (1)

None

yes

no

immunosuppression

pomalidomide

echinacea (1)

None

yes

no

immunosuppression

pomalidomide

hydrocodone (3)

None

yes

no

CNS depression

pomalidomide

oxycodone (2)

None

yes

no

CNS depression

pomalidomide

tramadol (4)

None

yes

no

CNS depression

crizotinib

granisetron (1)

None

yes

no

QT

vemurafenib

albuterol (1)

None

yes

no

QT

dexamethasone

antacids (3)

None

yes

no

unknown

  1. P-gp P-glycoprotein
  2. aClinical relevance was determined by study team review and defined as a drug-drug interaction that would require a medication change to ensure study agent safety/efficacy at enrollment
  3. bdabrafenib as victim and omeprazole as perpetrator
  4. comeprazole as victim and dabrafenib as perpetrator