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Drug Safety-related Labeling Changes (SrLC)

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LITFULO (NDA-215830)

(RITLECITINIB TOSYLATE)

Safety-related Labeling Changes Approved by FDA Center for Drug Evaluation and Research (CDER)

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06/30/2026 (SUPPL-1)

Approved Drug Label (PDF)

5 Warnings and Precautions

5.7 Hypoglycemia in Patients with Diabetes

Newly added subsection:

Hypoglycemia, including severe hypoglycemia, has been reported following initiation of JAK inhibitors in patients with diabetes. During treatment with LITFULO, consider increased monitoring of blood glucose in patients with diabetes. Advise diabetic patients to notify their healthcare provider(s) if they develop signs or symptoms of hypoglycemia.

17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)

MEDICATION GUIDE

Additions and/or revisions underlined:

7. Low blood sugar in people with diabetes

If you have diabetes, your healthcare provider may instruct you to check your blood sugar levels more often during treatment with LITFULO. Call your healthcare provider if you have any problems with low blood sugar (hypoglycemia).

Before taking LITFULO, tell your healthcare provider about all of your medical conditions, including if you:

  • have diabetes

PATIENT COUNSELING INFORMATION

Additions and/or revisions underlined:

Hypoglycemia in Patients with Diabetes

Consider advising patients with diabetes to increase monitoring of blood glucose, since hypoglycemia, including severe hypoglycemia, has been reported after starting JAK inhibitors. Advise diabetic patients to notify their healthcare provider(s) if they develop signs or symptoms of hypoglycemia [see Warnings and Precautions (5.7)].