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Important Safety Information    Full Prescribing Information    Medication Guide
DURABLE REMISSION IS POSSIBLE

 

INDICATION

 

REZLIDHIA is indicated for the treatment of adult patients with relapsed or refractory acute myeloid leukemia (AML) with a susceptible isocitrate dehydrogenase-1 (IDH1) mutation as detected by an FDA-approved test.

 

SELECT IMPORTANT SAFETY INFORMATION

 

 

WARNING: DIFFERENTIATION SYNDROME

 

Differentiation syndrome, which can be fatal, can occur with REZLIDHIA treatment. Symptoms may include dyspnea, pulmonary infiltrates/
pleuropericardial effusion, kidney injury, hypotension, fever, and weight gain. If differentiation syndrome is suspected, withhold REZLIDHIA and initiate treatment with corticosteroids and hemodynamic monitoring until symptom resolution.

 

 

Please see additional Important Safety Information below and Full Prescribing
Information
, including Boxed WARNING.

 

REZLIDHIA PROVIDED A DURABLE, COMPLETE REMISSION

 

 

Efficacy Results in Patients with Relapsed or Refractory
IDH1-mutated AML (N=147)1-4*

 

Endpoint

Results with REZLIDHIA

Patients achieving CR/CRh

35% (95% CI: 27-43)

Patients achieving CRc (CR/CRh/CRi)

45%

Median duration of CR/CRh

25.3 months (95% CI: 13.5-NR)

Median time to CR or CRh

1.9 months (95% CI: 1-2.8)

 

View the full efficacy of REZLIDHIA from the pivotal trial and long-term analysis.

 

Data cutoff=June 15, 2023.
* Data from an open-label, single-arm, multicenter clinical trial of 153 adult patients (147 efficacy evaluable) with relapsed or refractory AML with an IDH1 mutation.
Primary endpoint.
  CI=confidence interval; CR=complete remission; CRc=composite complete remission (CR+CRh+CRi); CRh=complete remission with partial hematologic recovery; CRi=complete remission with incomplete blood count recovery; NR=not reached; R/R=relapsed or refractory.

 

REZLIDHIA RESPONSE RATES AS THE FIRST IDH1 INHIBITOR FOLLOWING STANDARD OF CARE TREATMENT PROGRESSION REZLIDHIA RESPONSE RATES AS THE FIRST IDH1 INHIBITOR FOLLOWING STANDARD OF CARE TREATMENT PROGRESSION

 

Subgroup analysis after a venetoclax-based regimen or intensive chemotherapy

 

Prior Venetoclax-based Regimen (n=12)5

 

Prior Venetoclax-based Regimen chart

 

Median duration of previous venetoclax-based treatment was 6.7 months (range: 2-34 months)3

 

Prior Intensive Chemotherapy (n=13)4‡

 

Prior Intensive Chemotherapy chart

 

Intensive chemotherapy was the only prior regimen these patients received. Intensive chemotherapy was defined as high-dose cytarabine with daunorubicin, mitoxantrone with etoposide and cytarabine, or transplant conditioning regimens, whether myeloablative or not.

 

Results in these high-risk subgroups are consistent
with the overall patient population (N=147): 45% achieve CRc2-7
Results in these high-risk subgroups
are consistent with the overall patient population (N=147): 45% achieve CRc2-7
For patients with mIDH1 AML who relapse or are refractory to initial treatment, choose REZLIDHIA as the first R/R targeted therapy
Learn more about REZLIDHIA


SUPPORT IS AVAILBLE FOR YOU AND YOUR PATIENTS
THROUGH RIGEL ONECARE®
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IMPORTANT SAFETY INFORMATION (CONT’D)

 

WARNINGS AND PRECAUTIONS

 

Differentiation Syndrome

 

REZLIDHIA can cause differentiation syndrome. In the clinical trial of REZLIDHIA in patients with relapsed or refractory AML, differentiation syndrome occurred in 16% of patients, with grade 3 or 4 differentiation syndrome occurring in 8% of patients treated, and fatalities in 1% of patients. Differentiation syndrome is associated with rapid proliferation and differentiation of myeloid cells and may be life-threatening or fatal. Symptoms of differentiation syndrome in patients treated with REZLIDHIA included leukocytosis, dyspnea, pulmonary infiltrates/pleuropericardial effusion, kidney injury, fever, edema, pyrexia, and weight gain. Of the 25 patients who experienced differentiation syndrome, 19 (76%) recovered after treatment or after dose interruption of REZLIDHIA. Differentiation syndrome occurred as early as 1 day and up to 18 months after REZLIDHIA initiation and has been observed with or without concomitant leukocytosis.

 

If differentiation syndrome is suspected, temporarily withhold REZLIDHIA and initiate systemic corticosteroids (e.g., dexamethasone 10 mg IV every 12 hours) for a minimum of 3 days and until resolution of signs and symptoms. If concomitant leukocytosis is observed, initiate treatment with hydroxyurea, as clinically indicated. Taper corticosteroids and hydroxyurea after resolution of symptoms. Differentiation syndrome may recur with premature discontinuation of corticosteroids and/or hydroxyurea treatment. Institute supportive measures and hemodynamic monitoring until improvement; withhold dose of REZLIDHIA and consider dose reduction based on recurrence.

 

Hepatotoxicity

 

REZLIDHIA can cause hepatotoxicity, presenting as increased alanine aminotransferase (ALT), increased aspartate aminotransferase (AST), increased blood alkaline phosphatase, and/or elevated bilirubin. Of 153 patients with relapsed or refractory AML who received REZLIDHIA, hepatotoxicity occurred in 23% of patients; 13% experienced grade 3 or 4 hepatotoxicity. One patient treated with REZLIDHIA in combination with azacitidine in the clinical trial, a combination for which REZLIDHIA is not indicated, died from complications of drug-induced liver injury. The median time to onset of hepatotoxicity in patients with relapsed or refractory AML treated with REZLIDHIA was 1.2 months (range: 1 day to 17.5 months) after REZLIDHIA initiation, and the median time to resolution was 12 days (range: 1 day to 17 months). The most common hepatotoxicities were elevations of ALT, AST, blood alkaline phosphatase, and blood bilirubin.

 

Monitor patients frequently for clinical symptoms of hepatic dysfunction such as fatigue, anorexia, right upper abdominal discomfort, dark urine, or jaundice. Obtain baseline liver function tests prior to initiation of REZLIDHIA, at least once weekly for the first two months, once every other week for the third month, once in the fourth month, and once every other month for the duration of therapy. If hepatic dysfunction occurs, withhold, reduce, or permanently discontinue REZLIDHIA based on recurrence/severity.

 

ADVERSE REACTIONS

 

The most common (≥20%) adverse reactions, including laboratory abnormalities, were aspartate aminotransferase increased, alanine aminotransferase increased, potassium decreased, sodium decreased, alkaline phosphatase increased, nausea, creatinine increased, fatigue/malaise, arthralgia, constipation, lymphocytes increased, bilirubin increased, leukocytosis, uric acid increased, dyspnea, pyrexia, rash, lipase increased, mucositis, diarrhea and transaminitis.

 

DRUG INTERACTIONS

 

Avoid concomitant use of REZLIDHIA with strong or moderate CYP3A inducers.
Avoid concomitant use of REZLIDHIA with sensitive CYP3A substrates unless otherwise instructed in the substrates prescribing information. If concomitant use is unavoidable, monitor patients for loss of therapeutic effect of these drugs.

 

LACTATION

 

Advise women not to breastfeed during treatment with REZLIDHIA and for 2 weeks after the last dose.

 

GERIATRIC USE

 

No overall differences in effectiveness were observed between patients 65 years and older and younger patients. Compared to patients younger than 65 years of age, an increase in incidence of hepatotoxicity and hypertension was observed in patients ≥65 years of age.

 

HEPATIC IMPAIRMENT

 

In patients with mild or moderate hepatic impairment, closely monitor for increased probability of differentiation syndrome.

 

Please see REZLIDHIAhcp.com for Full Prescribing Information, including Boxed WARNING.

 

 

REFERENCES: 1. REZLIDHIA®. Package insert. Rigel Pharmaceuticals, Inc; 2022. 2. de Botton S, Fenaux P, Yee K, et al. Olutasidenib (FT-2102) induces durable complete remissions in patients with relapsed or refractory IDH1-mutated AML. Blood Adv. 2023;7(13):3117-3127. doi:10.1182/bloodadvances.2022009411 3. Cortes J, Curti A, Fenaux P, et al. Olutasidenib for mutated IDH1 acute myeloid leukemia: final five-year results from the phase 2 pivotal cohort. J Hematol Oncol. 2025;18(1):102. doi:10.1186/s13045-025-01751-w 4. Data on file, Rigel Pharmaceuticals, Inc. January 2025. 5. Cortes J, Curti A, Fenaux P, et al. Olutasidenib for mutated IDH1 acute myeloid leukemia: final five-year results from the phase 2 pivotal cohort (supplemental data). J Hematol Oncol. 2025; https://‌link.‌springer‌.com/‌article‌/10.‌1186‌/‌s130‌45-025-017‌51-w#‌Sec20 6. Maiti A, Rausch CR, Cortes JE, et al. Outcomes of relapsed or refractory acute myeloid leukemia after frontline hypomethylating agent and venetoclax regimens. Haematologica. 2021;106(3):894-898. doi:10.3324/haematol.2020.252569 7. Niscola P, Gianfelici V, Catalano G, et al. Acute myeloid leukemia in older patients: from new biological insights to targeted therapies. Curr Oncol. 2024;31(11):6632-6658. Error in Figure 1 legend. Correction. Curr Oncol. 2025;32(7):386. doi:10.3390/curroncol32070386

 

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