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Last Updated: April 8, 2025

Cystine Depleting Agent Drug Class List


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Drugs in Drug Class: Cystine Depleting Agent

ApplicantTradenameGeneric NameDosageNDAApproval DateTETypeRLDRSPatent No.Patent ExpirationProductSubstanceDelist Req.Exclusivity Expiration
Horizon PROCYSBI cysteamine bitartrate CAPSULE, DELAYED RELEASE;ORAL 203389-001 Apr 30, 2013 RX Yes No ⤷  Try for Free ⤷  Try for Free Y ⤷  Try for Free
Horizon PROCYSBI cysteamine bitartrate CAPSULE, DELAYED RELEASE;ORAL 203389-002 Apr 30, 2013 RX Yes Yes ⤷  Try for Free ⤷  Try for Free Y ⤷  Try for Free
Horizon PROCYSBI cysteamine bitartrate GRANULE, DELAYED RELEASE;ORAL 213491-001 Feb 14, 2020 RX Yes No ⤷  Try for Free ⤷  Try for Free Y ⤷  Try for Free
Leadiant Biosci Inc CYSTARAN cysteamine hydrochloride SOLUTION/DROPS;OPHTHALMIC 200740-001 Oct 2, 2012 RX Yes Yes ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
Mylan CYSTAGON cysteamine bitartrate CAPSULE;ORAL 020392-001 Aug 15, 1994 RX Yes No ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
Mylan CYSTAGON cysteamine bitartrate CAPSULE;ORAL 020392-002 Aug 15, 1994 RX Yes Yes ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
Recordati Rare CYSTADROPS cysteamine hydrochloride SOLUTION/DROPS;OPHTHALMIC 211302-001 Aug 19, 2020 RX Yes Yes ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
>Applicant>Tradename>Generic Name>Dosage>NDA>Approval Date>TE>Type>RLD>RS>Patent No.>Patent Expiration>Product>Substance>Delist Req.>Exclusivity Expiration
Showing 1 to 7 of 7 entries

Cystine Depleting Agent Market Analysis and Financial Projection

The market for cystine-depleting agents, critical in treating nephropathic cystinosis, is shaped by advancements in drug formulations, competitive patent strategies, and evolving therapeutic pipelines. Here's a breakdown of key dynamics:


Market Overview

The global cystinosis treatment market, valued at $130.46 million in 2017, is projected to grow at a CAGR of 6–13.4% through 2030, driven by rising disease awareness and innovative therapies[4][6][13]. North America dominates with 45% market share, followed by Europe (30%)[6].

Key Growth Drivers:

  • Cysteamine-based therapies: Procysbi® (delayed-release cysteamine bitartrate) and Cystagon® remain cornerstone treatments, with Procysbi’s sales bolstered by extended dosing intervals and improved patient compliance[2][9].
  • Emerging therapies: Gene therapy (e.g., Avrobio’s AVR-RD-04) and ribosomal modulators (e.g., Eloxx’s ELX-02) threaten to disrupt the market with potential one-time cures[5][13].
  • Regulatory incentives: Orphan drug designations and expedited approvals accelerate market entry for niche therapies[2][9].

Patent Landscape

The patent environment is fiercely competitive, with key players securing multiple protections for formulations, manufacturing processes, and delivery systems:

Drug/Company Key Patents Expiry Strategic Impact
Procysbi® (Horizon) 5 Orange Book-listed patents, including delayed-release bead formulations[2] 2034 (earliest) Extended exclusivity blocks generics until 2034.
Cysteamine Processes Lupin’s novel crystalline forms (L1/L2)[7], Recordati’s improved synthesis[14] 2030s Enhances manufacturing efficiency and stability.
Gene Therapies Avrobio’s AVR-RD-04 (lentiviral-based)[13] Pending Could dominate post-approval with curative claims.

Patent Trends:

  • Formulation innovation: 63% of recent patents focus on delayed-release mechanisms to reduce dosing frequency[2][9].
  • Manufacturing processes: Novel methods to stabilize cysteamine (e.g., anhydrous polymorphs) aim to prolong patent life[7][14].
  • Biosimilar threats: Limited due to complex formulations, though 2034–2040 may see generics for older cysteamine variants[2][13].

Competitive Dynamics

  1. Horizon Therapeutics: Dominates with Procysbi®, leveraging its 12-hour delayed-release formulation and FDA/EMA approvals across age groups[5][9].
  2. Recordati: Markets Cystadrops® (ocular cystinosis) in Europe and filed a 2019 NDA for U.S. entry, challenging Cystaran®[5][13].
  3. Avrobio & Eloxx: Pipeline therapies (AVR-RD-04, ELX-02) target curative approaches, appealing for long-term cost savings despite high upfront prices[5][13].

Market Challenges

  • Pricing scrutiny: Canada’s PMPRB flagged Procysbi®’s pricing as potentially excessive, signaling regulatory risks for premium therapies[9].
  • Adherence issues: Despite improved formulations, 30% of patients struggle with lifelong dosing, underscoring the need for gene therapies[1][10].
  • R&D costs: High development expenses for ultra-rare diseases limit new entrants, with only 4–5 active players in late-stage pipelines[5][13].

Future Outlook

The market will pivot toward gene therapies and personalized medicine, with AVR-RD-04 expected to capture ~20% of the U.S. market by 2030[13]. Meanwhile, cysteamine formulations will retain dominance in emerging economies due to lower costs and established efficacy[4][6]. Patent cliffs post-2030 will likely spur biosimilars, intensifying price competition.

References

  1. https://pmarketresearch.com/product/worldwide-pediatric-extracorporeal-blood-pumps-market-research-2024-by-type-application-participants-and-countries-forecast-to-2030/worldwide-nephropathic-cystinosis-treatment-market-research-2024-by-type-application-participants-and-countries-forecast-to-2030
  2. https://www.globenewswire.com/news-release/2016/01/25/804285/12430/en/Four-New-Patents-Issued-PROCYSBI-Granted-Additional-U-S-Orphan-Exclusivity.html
  3. https://www.cystinosisresearch.org/wp-content/uploads/2021/12/Drug-Repurposiing-in-Rare-Diseases-Nov-2021.pdf
  4. https://www.datamintelligence.com/research-report/cystinosis-treatment-market
  5. https://www.globenewswire.com/news-release/2020/01/27/1975352/0/en/Global-Cystinosis-Market-Study-2017-2019-2020-2028-Epidemiology-Treatment-Management-Unmet-Needs-Marketed-Emerging-Drugs-Market-Outlook-KOL-Insights.html
  6. https://github.com/roceljiabur/Market-Research-Report-List-1/blob/main/cystinosis-treatment-market-global-outlook-and-forecast-2022-2028-market.md
  7. https://patents.justia.com/patent/10251850
  8. https://pubs.acs.org/doi/10.1021/acs.joc.2c01050
  9. https://www.canada.ca/content/dam/pmprb-cepmb/documents/hearings/decisions-and-orders/PMPRB-Procysbi-Merits-Decision-Public-Version-EN.pdf
  10. https://pmarketresearch.com/product/worldwide-disposable-hypodermic-syringes-market-research-2024-by-type-application-participants-and-countries-forecast-to-2030/worldwide-nephropathic-cystinosis-treatment-market-research-2024-by-type-application-participants-and-countries-forecast-to-2030
  11. https://www.alliedmarketresearch.com/patented-drugs-market-A110993
  12. https://go.gale.com/ps/i.do?id=GALE%7CA757323497&sid=sitemap&v=2.1&it=r&p=AONE&sw=w
  13. https://www.businesswire.com/news/home/20200421005393/en/Global-Cystinosis-Market-Insights-Epidemiology-2017-2028---Analysis-of-Marketed-Emerging-Drugs-Procysbi-Cystadrops-Cystaran-Cystagon-AVR-RD-04-ELX-02-and-A0003---ResearchAndMarkets.com
  14. https://patents.justia.com/patent/20230202975

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.