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Last Updated: March 26, 2026

Olutasidenib - Generic Drug Details


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What are the generic drug sources for olutasidenib and what is the scope of freedom to operate?

Olutasidenib is the generic ingredient in one branded drug marketed by Rigel Pharms and is included in one NDA. There are fourteen patents protecting this compound. Additional information is available in the individual branded drug profile pages.

Olutasidenib has one hundred and ten patent family members in thirty-eight countries.

One supplier is listed for this compound.

Summary for olutasidenib
International Patents:110
US Patents:14
Tradenames:1
Applicants:1
NDAs:1
Finished Product Suppliers / Packagers: 1
Raw Ingredient (Bulk) Api Vendors: 29
Clinical Trials: 12
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for olutasidenib
What excipients (inactive ingredients) are in olutasidenib?olutasidenib excipients list
DailyMed Link:olutasidenib at DailyMed
DrugPatentWatch® Estimated Loss of Exclusivity (LOE) Date for olutasidenib
Generic Entry Date for olutasidenib*:
Constraining patent/regulatory exclusivity:
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
Dosage:
CAPSULE;ORAL

*The generic entry opportunity date is the latter of the last compound-claiming patent and the last regulatory exclusivity protection. Many factors can influence early or later generic entry. This date is provided as a rough estimate of generic entry potential and should not be used as an independent source.

Recent Clinical Trials for olutasidenib

Identify potential brand extensions & 505(b)(2) entrants

SponsorPhase
National Cancer Institute (NCI)PHASE2
University of California, DavisPHASE2
Justin Watts, MDPHASE2

See all olutasidenib clinical trials

US Patents and Regulatory Information for olutasidenib

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Rigel Pharms REZLIDHIA olutasidenib CAPSULE;ORAL 215814-001 Dec 1, 2022 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Rigel Pharms REZLIDHIA olutasidenib CAPSULE;ORAL 215814-001 Dec 1, 2022 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Rigel Pharms REZLIDHIA olutasidenib CAPSULE;ORAL 215814-001 Dec 1, 2022 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

International Patents for olutasidenib

Country Patent Number Title Estimated Expiration
Eurasian Patent Organization 038574 ХИНОЛИНОНОВЫЕ ПРОИЗВОДНЫЕ ПИРИДИН-2(1H)-ОНА И ФАРМАЦЕВТИЧЕСКИЕ КОМПОЗИЦИИ НА ИХ ОСНОВЕ (PYRIDIN-2(1H)-ONE QUINOLINONE DERIVATIVES AND PHARMACEUTICAL COMPOSITIONS THEREOF) ⤷  Start Trial
Singapore 11201702194S PYRIDIN-2(1H)-ONE QUINOLINONE DERIVATIVES AS MUTANT-ISOCITRATE DEHYDROGENASE INHIBITORS ⤷  Start Trial
Spain 2953347 ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Market Dynamics and Financial Trajectory for Olutasidenib

Last updated: February 19, 2026

What is the Current Market Position of Olutasidenib?

Olutasidenib is an investigational drug developed by Taiho Oncology. It functions as an IDH1 inhibitor, targeting mutant isocitrate dehydrogenase 1 (IDH1) enzymes. As of 2023, it remains in clinical development stages, with potential approval for specific hematologic malignancies, primarily relapsed or refractory acute myeloid leukemia (AML).

The drug is designed to compete within the IDH1 inhibitor niche, which includes agents like ivosidenib (AbbVie) and olutasidenib itself, in the landscape of targeted therapies for AML. The market for IDH1 inhibitors is projected to grow driven by increasing AML diagnosed cases and a shift toward personalized medicine.

What Are the Clinical Development Updates and Regulatory Status?

  • Phase: Olutasidenib has completed phase 1/2 trials, showing durable responses in AML patients with IDH1 mutations.
  • Regulatory filings: As of 2023, the company has submitted a New Drug Application (NDA) to the FDA for relapsed/refractory AML.
  • FDA Decision: Expected during 2024. Approval depends on demonstration of safety, efficacy, and benefit-risk balance.

How Does the Market for AML Treatments Influence Olutasidenib?

Parameter Data Point
AML Incidence 20,000 new cases annually in the U.S. (2018 estimate)
5-year survival rate Approximately 27% (SEER, 2018)
Market growth rate for AML drugs 7.5% CAGR (2017-2022, GlobalData)
Target population size Estimated 8,000–10,000 eligible patients in the U.S. annually

The growth in targeted therapies for AML, especially with mutations like IDH1, is driven by high unmet need among relapsed cases. Oral targeted treatments appeal to patients seeking less toxic options than chemotherapy.

Who Are the Competitive Landscape Players?

Company Product Approval Status Indication
AbbVie Ivosidenib (Tibsovo) Approved AML, relapsed/refractory
Bristol-Myers Squibb Enasidenib (Idhifa) Approved AML, relapsed/refractory
Pfizer APL-581 (IDH1 inhibitor) Clinical-stage AML, investigational

Olutasidenib remains the most advanced of the pipeline candidates yet to secure regulatory approval. Its unique data may offer competitive advantages if approved, depending on safety and efficacy profiles relative to existing therapies.

What Are the Key Market Drivers and Barriers?

Drivers

  • Increasing AML incidence among aging populations.
  • Rising adoption of personalized medicine.
  • Preference for oral targeted agents over cytotoxic chemotherapy.
  • Expanding clinical data supporting IDH1 inhibitors efficacy.

Barriers

  • Pending regulatory approval limits market access.
  • Competition from established IDH1 treatments; switching costs.
  • Potential adverse effects or safety concerns.
  • High development costs and uncertain reimbursement pathways.

What Is the Financial Trajectory Expected?

Aspect Detail
Investment in development Estimated $50 million to $75 million (2021–2024)
Approval probability (phase 3 success rate) 65% (Pharmaprojects, 2022)
Commercial launch timeline 2024–2025
Revenue potential (peak) $300 million to $500 million annually (targeted AML niche)
Market capture assumptions 30–40% of the IDH1 inhibitor market upon approval

Financial success hinges on gaining FDA approval. If approved, revenue streams could emerge within 1–2 years post-approval, contingent on reimbursement negotiations and physician adoption.

How Does Pricing Strategy Influence Financial Outcomes?

Pricing for targeted therapies for AML has ranged from approximately $13,000 to $16,000 per month.

  • Estimated annual treatment cost: $150,000 – $192,000.
  • Market penetration estimates: 20%–50% in eligible populations over five years.
  • Reimbursement considerations: Payer negotiations influence net revenue.

Optimal pricing balances revenue generation with market access constraints. Early health economic data demonstrating value could enhance payer acceptance.

What Are Key Risks and Opportunities?

Risks

  • Higher-than-expected adverse events impede approval.
  • Delays in regulatory review or rejection.
  • Competition from emerging therapies with broader indications.
  • Limited patient population size constrains revenue.

Opportunities

  • First-to-market advantage if approval is secured.
  • Expansion into additional indications such as myelodysplastic syndromes (MDS).
  • Combinatorial approaches with other targeted agents.
  • Potential for labeling expansions based on further trial data.

Summary of Financial Projections

Year Estimate Commentary
2023 Pre-approval clinical data readouts Data assessing safety and efficacy for NDA submission.
2024 Regulatory decision (FDA) Approval typically prompts initial sales.
2025 Commercial launch Revenues from early adopters, especially in the U.S.
2026+ Market penetration growth Achieving forecasted peak revenues, ongoing competition.

Key Takeaways

Olutasidenib has potential to establish a niche within the IDH1 inhibitor market for AML. Success depends on regulatory approval, clinical outcomes, and market adoption strategies. Its financial trajectory is projected to mirror those of similar targeted therapies, with peak revenues reaching hundreds of millions annually if successful.

Frequently Asked Questions

What clinical data supports Olutasidenib's efficacy?

Olutasidenib has shown durable responses in phase 1/2 trials with relapsed or refractory AML patients with IDH1 mutations, demonstrating partial and complete remission in a subset of patients.

When is FDA approval expected?

The NDA submission occurred in 2023, with FDA review timelines typically extending through 2024. Approval is anticipated in the second half of 2024.

How does Olutasidenib compare to competing IDH1 inhibitors?

Preliminary data suggest comparable efficacy and safety profiles to ivosidenib. Differences may lie in side-effect profiles, dosing schedules, and ease of administration, which influence market positioning.

What is the potential market size?

Approximately 8,000–10,000 patients in the U.S. annually meet criteria for IDH1 inhibitor therapy in relapsed AML. Expansion into other indications could increase this figure.

What are the main barriers to market entry?

Regulatory hurdles, competition with approved therapies, safety concerns, and market access issues such as reimbursement policies represent primary barriers.


References

[1] Surveillance, Epidemiology, and End Results Program (SEER). (2018). Cancer Statistics Review. National Cancer Institute.

[2] GlobalData. (2022). AML Market Analysis. Market Insights Report.

[3] Pharmaprojects. (2022). Oncology Pipeline Review. Drug Development Database.

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