Krazati Dosage

Generic name: ADAGRASIB 200mg
Dosage form: tablet, coated
Drug class: Miscellaneous antineoplastics

Medically reviewed by Drugs.com. Last updated on Jul 11, 2024.

Patient Selection

Non-Small Cell Lung Cancer

Select patients for treatment of locally advanced or metastatic NSCLC with KRAZATI based on the presence of KRAS G12C mutation in plasma or tumor specimens. If no mutation is detected in a plasma specimen, test tumor tissue.

Colorectal Cancer

Select patients for treatment of locally advanced or metastatic CRC with KRAZATI based on the presence of KRAS G12C mutation in tumor specimens.

Information on FDA-approved tests for the detection of a KRAS G12C mutation is available at: https://www.fda.gov/CompanionDiagnostics

Recommended Dosage

The recommended dosage of KRAZATI as a single agent or in combination with cetuximab is 600 mg orally twice daily until disease progression or unacceptable toxicity.

Refer to the cetuximab prescribing information for cetuximab dosage information.

Take KRAZATI at the same time every day with or without food. Swallow tablets whole. Do not chew, crush or split tablets.

If vomiting occurs after taking KRAZATI, do not take an additional dose. Resume dosing at the next scheduled time.

If a dose is inadvertently missed, it should be skipped if greater than 4 hours have elapsed from the expected dosing time. Resume dosing at the next scheduled time.

Dosage Modifications for Adverse Reactions

Recommended dose reductions for adverse reactions for use of KRAZATI as a single agent or in combination with cetuximab are outlined in Table 1. If adverse reactions occur, a maximum of two dose reductions are permitted. Permanently discontinue KRAZATI in patients who are unable to tolerate 600 mg once daily.

Table 1: Recommended KRAZATI Dosage Reductions for Adverse Reactions
Dose Reduction	Dosage
First dose reduction	400 mg twice daily
Second dose reduction	600 mg once daily

Refer to the cetuximab prescribing information for dose modifications for adverse reactions associated with cetuximab.

When KRAZATI is administered in combination with cetuximab, withhold or permanently discontinue cetuximab when KRAZATI is withheld or permanently discontinued.

Treatment with KRAZATI as a single agent may be continued if cetuximab is permanently discontinued..

The recommended dosage modifications for adverse reactions are provided in Table 2.

Table 2: Recommended KRAZATI Dosage Modifications for Adverse Reactions
ALT = alanine aminotransferase; AST = aspartate aminotransferase; ILD = Interstitial Lung Disease; ULN = upper limit of normal
* Grading defined by National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 5.0. † When KRAZATI is administered in combination with cetuximab, withhold or permanently discontinue treatment with cetuximab when withholding or permanently discontinuing treatment with KRAZATI.
Adverse Reaction	Severity*	Dosage Modification†
Nausea or vomiting despite appropriate supportive care (including anti-emetic therapy)	Grade 3 or 4	• Withhold KRAZATI until recovery to ≤ Grade 1 or return to baseline. • Resume KRAZATI at the next lower dose level.
Diarrhea despite appropriate supportive care (including anti-diarrheal therapy)	Grade 3 or 4	• Withhold KRAZATI until recovery to ≤ Grade 1 or return to baseline. • Resume KRAZATI at the next lower dose level.
QTc Interval Prolongation	QTc absolute value greater than 500 ms or Greater than an increase of 60 ms from baseline	• Withhold KRAZATI until QTc interval less than 481 ms or return to baseline. • Resume KRAZATI at the next lower dose level.
	Torsade de pointes, polymorphic ventricular tachycardia or signs or symptoms of serious or life-threatening arrhythmia	• Permanently discontinue KRAZATI
Hepatotoxicity	Grade 2 AST or ALT	• Decrease KRAZATI to the next lower dose level.
Hepatotoxicity	Grade 3 or 4 AST or ALT	• Withhold KRAZATI until recovery to ≤ Grade 1 or return to baseline. • Resume KRAZATI at the next lower dose level.
	AST or ALT > 3 × ULN with total bilirubin > 2 × ULN in the absence of alternative causes	• Permanently discontinue KRAZATI
Interstitial Lung Disease / Pneumonitis	Any Grade	• Withhold KRAZATI if ILD/pneumonitis is suspected. • Permanently discontinue KRAZATI if ILD/pneumonitis is confirmed
Other Adverse Reactions	Grade 3 or 4	• Withhold KRAZATI until ≤ Grade 1 or return to baseline. • Resume KRAZATI at the next lower dose level.