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Drug Safety-related Labeling Changes (SrLC)

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OJJAARA (NDA-216873)

(MOMELOTINIB DIHYDROCHLORIDE)

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

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07/20/2026 (SUPPL-6)

Approved Drug Label (PDF)

6 Adverse Reactions

6.2 Postmarketing Experience

Newly added information:

Metabolism and Nutrition Disorders: Hypoglycemia.

03/18/2026 (SUPPL-4)

Approved Drug Label (PDF)

6 Adverse Reactions

6.2 Postmarketing Experience

Additions and/or revisions underlined:

Immune System Disorders: Hypersensitivity.

Skin and Subcutaneous Tissue Disorders: Erythema multiforme, toxic epidermal necrolysis (TEN).

03/18/2026 (SUPPL-5)

Approved Drug Label (PDF)

5 Warnings and Precautions

5.8 Symptom Exacerbation Following Interruption or Discontinuation of Treatment

Newly added subsection:

Following discontinuation of JAK inhibitors, including OJJAARA, signs and symptoms from myeloproliferative neoplasms may flare. Some patients with MF have experienced one or more of the following after discontinuing JAK inhibitors: fever, respiratory distress, hypotension, disseminated intravascular coagulation, or multi-organ failure.

If one or more of these signs and symptoms occur after discontinuation of OJJAARA, evaluate for and treat any intercurrent illness and consider restarting OJJAARA. Instruct patients not to interrupt or discontinue therapy without consulting their healthcare provider. When discontinuing or interrupting therapy for reasons other than potentially life-threatening toxicities, consider tapering the dose of OJJAARA gradually rather than discontinuing abruptly.

6 Adverse Reactions

Addition of the following to the bulleted line listing:

  • Symptom Exacerbation Following Interruption or Discontinuation of Treatment [see Warnings and Precautions (5.8)]

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

PATIENT COUNSELING INFORMATION

Additions and/or revisions underlined:

Symptom Exacerbation Following Interruption or Discontinuation of Treatment

Inform patients that after discontinuation of OJJAARA, signs and symptoms from myeloproliferative neoplasms may return. Instruct patients not to interrupt or discontinue OJJAARA without consulting their healthcare provider [see Warnings and Precautions (5.8)].

PATIENT INFORMATION

Additions and/or revisions underlined:

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

Females who are able to become pregnant:

    • Use highly effective birth control (contraception) during treatment and for at least 1 week after the last dose of OJJAARA.

    • Tell your healthcare provider right away if you think you are pregnant or become pregnant during treatment with OJJAARA.

  • are breastfeeding or plan to breastfeed. It is not known if OJJAARA passes into your breast milk. You should not breastfeed during treatment and for at least 1 week after the last dose of OJJAARA. Talk to your healthcare provider about the best way to feed your baby during this time.

    What are the possible side effects of OJJAARA?

    OJJAARA may cause serious side effects, including:

  • Worsening of symptoms after interruption or stopping treatment. Signs and symptoms of myelofibrosis may worsen after you stop treatment with OJJAARA. Do not interrupt or stop treatment with OJJAARA without talking to your healthcare provider. If you need to stop treatment with OJJAARA, your healthcare provider may give you instructions for slowly stopping treatment.

    Tell your healthcare provider right away if you get any of the following signs and symptoms after stopping treatment with OJJAARA:

  • Fever

  • Weakness

  • trouble breathing

  • night sweats

  • feeling dizzy or lightheaded

  • pain in your left upper stomach (abdomen) area or left shoulder

Your healthcare provider will do blood tests before you start treatment with OJJAARA and during treatment to check for side effects.

Your healthcare provider may change your dose, temporarily stop, or permanently stop treatment with OJJAARA if you get certain side effects.

04/18/2025 (SUPPL-2)

Approved Drug Label (PDF)

5 Warnings and Precautions

5.4 Severe Cutaneous Adverse Reactions (SCARs)

New subsection added:

Severe cutaneous adverse reactions, including toxic epidermal necrolysis (TEN), have been observed in some patients treated with OJJAARA.

If signs or symptoms of severe cutaneous reactions occur, interrupt OJJAARA until the etiology of the reaction has been determined. Consider early consultation with a dermatologist for evaluation and management.

If etiology is considered to be associated with OJJAARA, permanently discontinue and do not reintroduce OJJAARA in patients who have experienced SCARs or other life-threatening cutaneous reactions during OJJAARA treatment.

6 Adverse Reactions

Addition of the following to the bulleted line listing:

  • Severe Cutaneous Adverse Reactions [see Warnings and Precautions (5.4)]

6.1 Clinical Trials Experience

Additions and/or revisions underlined:

Other Adverse Reactions

Clinically relevant adverse reactions occurring in <5% of anemic patients in the MOMENTUM and SIMPLIFY-1 studies include:

Eye Disorders: Blurred vision.

Infections and Infestations: Fungal infection (excludes opportunistic infections).

Musculoskeletal and Connective Tissue Disorders: Arthralgia.

Nervous System Disorders: Neuralgia, peripheral neuropathy, peripheral motor neuropathy, polyneuropathy, syncope.

Vascular Disorders: Flushing.

6.2 Postmarketing Experience

New subsection added:

The following adverse reactions have been identified during postapproval use of OJJAARA. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Skin and Subcutaneous Tissue Disorders: Toxic epidermal necrolysis (TEN).

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

PATIENT COUNSELING INFORMATION

Additions and/or revisions underlined:

Severe Cutaneous Adverse Reactions (SCARs)

Inform patients that SCARs have been reported in some patients treated with OJJAARA and instruct them to promptly report any signs and symptoms of SCARs to their healthcare provider [see Warnings and Precautions (5.4)].

PATIENT INFORMATION

Additions and/or revisions underlined:

What are the possible side effects of OJJAARA?

OJJAARA may cause serious side effects, including:

  • Severe skin reactions. Severe skin reactions that can be life-threatening have occurred with OJJAARA. Tell your healthcare provider or get medical help right away if you get any of the following signs or symptoms of severe skin reactions, with or without fever:

    • rash that keeps getting worse

    • skin pain or burning

    • severe rash    

    • blistering of the lips, eyes, or mouth

    • reddened skin

    • blisters on the skin

    • flu-like symptoms    

    • skin peeling