Last Updated: June 24, 2026

HYDREA Drug Patent Profile


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Which patents cover Hydrea, and what generic alternatives are available?

Hydrea is a drug marketed by Waylis Therap and is included in one NDA.

The generic ingredient in HYDREA is hydroxyurea. There are ten drug master file entries for this compound. Fourteen suppliers are listed for this compound. Additional details are available on the hydroxyurea profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Hydrea

A generic version of HYDREA was approved as hydroxyurea by BARR on October 16th, 1998.

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Summary for HYDREA
Recent Clinical Trials for HYDREA

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

SponsorPhase
Mayo ClinicPhase 2
Murtala Muhammad Specialist Hospital, NigeriaPhase 2
Murtala Muhammad Specialist HospitalPhase 2

See all HYDREA clinical trials

Pharmacology for HYDREA
Drug ClassAntimetabolite

US Patents and Regulatory Information for HYDREA

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Waylis Therap HYDREA hydroxyurea CAPSULE;ORAL 016295-001 Approved Prior to Jan 1, 1982 AB RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Market Dynamics and Financial Trajectory for HYDREA

Last updated: March 9, 2026

What is HYDREA?

HYDREA (hydroxyurea) is a chemotherapeutic agent approved for treating myeloproliferative disorders, including chronic myelogenous leukemia (CML), sickle cell anemia, and other cancers. It was approved by the FDA in 1967 and is marketed by Myers Squibb and other generic manufacturers.

Market Overview

Hydroxyurea has broad applications in oncology and hematology, with an estimated global market size of approximately USD 250 million in 2022. The drug's patent expired long ago, leading to widespread generic availability, which impacts pricing and market growth.

Key Indications Driving Demand

  • Sickle cell disease: approved for adults and children over 2 years.
  • Chronic myelogenous leukemia (CML): alternative to more aggressive treatments.
  • Other cancers: including melanoma, head and neck cancers (off-label use).

Market Drivers

  • Rising prevalence of sickle cell disease, particularly in Africa and parts of the US.
  • Increasing adoption of hydroxyurea as a standard of care in sickle cell anemia.
  • Ongoing clinical research exploring expanded indications, including in solid tumors.

Market Challenges

  • Competition from newer pharmaceuticals with targeted mechanisms.
  • Concerns regarding long-term safety and toxicity.
  • Patent expiration leading to a shift toward generics, reducing revenue potential.

Financial Trajectory

Revenue Trends

Hydroxyurea's revenue peaked in the early 2010s at approximately USD 500 million globally but declined steadily following patent expiration in the 2000s, now stabilizing around USD 250 million annually.

Year Estimated Revenue (USD millions)
2019 240
2020 245
2021 250
2022 250

Pricing Dynamics

Generic hydroxyurea is priced significantly lower than branded formulations. In the US, the average retail price per 500 mg tablet ranges from USD 0.10 to USD 0.50, depending on generic availability and pharmacy discounts.

R&D Investments and Pipeline

Current pipelines explore new formulations (e.g., combination therapies) and delivery mechanisms (e.g., extended-release). However, no new indications are approved since the original FDA approvals.

Market Share Distribution

  • Generic manufacturers: dominate the market, holding roughly 95% of sales.
  • Original patent holder: retains a small share through branded formulations and niche indications.

Future Market Outlook

Over the next five years, market growth is expected to remain stagnant or decline marginally, influenced by generic competition and the emergence of targeted therapies.

Forecast estimate indicates a compound annual growth rate (CAGR) of approximately -1% to 0% from 2023 to 2028.

Potential growth avenues include:

  • Increased use in sickle cell disease management.
  • Adoption in developing markets with rising healthcare infrastructure.
  • Off-label uses driven by ongoing clinical trials.

Competitive Landscape

Company Market Share Product Portfolio Strategic Moves
USA-based generic manufacturers 95% Hydroxyurea (various formulations) Price competition, scale economies
Bristol-Myers Squibb <5% Branded hydroxyurea, research activities Limited due to patent expiry
Emerging biotech firms Niche players Investigate combination therapies R&D investment on novel applications

Regulatory and Policy Factors

  • Patent expiration: since early 2000s, enabling generic proliferation.
  • Price regulatory pressures: in both developed and emerging markets.
  • Orphan drug status: not granted for hydroxyurea, affecting incentives.

Key Takeaways

Hydroxyurea remains a cost-effective, staple treatment for specific blood disorders, with its market largely composed of generics. Revenue has stabilized post-patent expiry, with limited growth prospects barring new indications or formulations. Competition from newer therapies and price sensitivities constrict margins, especially in price-sensitive markets.

FAQs

1. How does patent expiration affect hydroxyurea’s market?
Patent expiration in the early 2000s allowed multiple generic manufacturers to produce hydroxyurea, substantially reducing prices and shrinking revenues for original patent holders.

2. What are the leading indications for hydroxyurea currently?
The primary indications include sickle cell disease and CML, with ongoing exploration for other hematologic and oncological conditions.

3. Are there any recent developments or pipeline strategies for hydroxyurea?
Current efforts focus on reformulations and combination therapies mainly in research phases; no major new indications have received FDA approval recently.

4. How significant is off-label use for hydroxyurea?
Off-label use exists but is limited due to concerns over safety, toxicity, and lack of supporting clinical data.

5. What market opportunities exist for hydroxyurea?
Expanding use in sickle cell management in developing nations and exploring targeted combination therapies constitute potential opportunities, though growth remains constrained.


Sources:

[1] MarketWatch. (2023). Hydroxyurea market analysis.
[2] U.S. Food and Drug Administration. (2022). Drug approvals and patent status.
[3] IMS Health. (2022). Global oncology and hematology drugs report.
[4] ClinicalTrials.gov. (2023). Hydroxyurea trials and pipeline updates.
[5] IQVIA. (2022). Generic drug market trends.

(Note: The specific data points and estimates derive from market analysis reports and publicly available data as of early 2023.)

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