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Last Updated: April 26, 2025

Phosphodiesterase 4 Inhibitor Drug Class List


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Drugs in Drug Class: Phosphodiesterase 4 Inhibitor

ApplicantTradenameGeneric NameDosageNDAApproval DateTETypeRLDRSPatent No.Patent ExpirationProductSubstanceDelist Req.Exclusivity Expiration
Amneal APREMILAST apremilast TABLET;ORAL 211782-001 Jun 30, 2021 DISCN No No ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
Amneal APREMILAST apremilast TABLET;ORAL 211782-002 Jun 30, 2021 DISCN No No ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
Amneal APREMILAST apremilast TABLET;ORAL 211782-003 Jun 30, 2021 DISCN No No ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
Anacor Pharms Inc EUCRISA crisaborole OINTMENT;TOPICAL 207695-001 Dec 14, 2016 RX Yes Yes ⤷  Try for Free ⤷  Try for Free Y ⤷  Try for Free
Anacor Pharms Inc EUCRISA crisaborole OINTMENT;TOPICAL 207695-001 Dec 14, 2016 RX Yes Yes ⤷  Try for Free ⤷  Try for Free Y ⤷  Try for Free
Astrazeneca DALIRESP roflumilast TABLET;ORAL 022522-002 Jan 23, 2018 AB RX Yes No ⤷  Try for Free ⤷  Try for Free ⤷  Try for Free
Astrazeneca DALIRESP roflumilast TABLET;ORAL 022522-001 Feb 28, 2011 AB 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

rket Dynamics and Patent Landscape for Phosphodiesterase 4 (PDE4) Inhibitors

The global PDE4 inhibitor market is undergoing significant transformation, driven by advancements in drug development, expanding therapeutic applications, and strategic corporate moves. Valued at $1.5 billion in 2022, this market is projected to reach $3.2 billion by 2030, growing at a 10.2% CAGR[1][12]. This growth reflects the critical role of PDE4 inhibitors in treating inflammatory, respiratory, and neurological disorders, alongside evolving patent strategies shaping competitive dynamics.


PDE4 Inhibitors: A Market Overview

Current Market Size and Growth Projections

  • The PDE4 inhibitor market is poised for robust growth, with demand fueled by rising chronic disease prevalence and R&D breakthroughs.
  • Broader phosphodiesterase (PDE) inhibitors, including PDE4, are projected to grow from $4.06 billion in 2024 to $6.92 billion by 2032 (6.88% CAGR)[5].

Key Market Drivers

  1. Disease Burden: Over 16 million Americans suffer from COPD[1], with PDE4 inhibitors like roflumilast reducing exacerbations.
  2. Therapeutic Expansion: Emerging applications in Alzheimer’s, Parkinson’s, and atopic dermatitis[7][15].
  3. R&D Investment: Companies like UNION Therapeutics and Biotheryx are advancing next-generation therapies[3][4].

Challenges and Restraints

  • High Costs: Roflumilast’s pricing limits accessibility, particularly in low-income regions[1].
  • Side Effects: Gastrointestinal issues with first-gen inhibitors drive demand for selective alternatives[4][8].

Patent Landscape and Strategic Moves

Recent Patent Grants and Acquisitions

  • Shionogi’s Neurological Focus: Patented oral PDE4 inhibitors for Alzheimer’s and Parkinson’s, targeting cytokine modulation[7].
  • Palisade Bio’s Innovation: European patent for PALI-2108, a microbiota-activated prodrug with reduced side effects[13].
  • UNION Therapeutics’ Acquisition: Secured global rights to LEO Pharma’s PDE4 series, including orismilast, a Phase 2 candidate for psoriasis and dermatitis[3].
“The acquisition of the PDE4 inhibitor compound series accelerates our growth trajectory and enables synergies at organizational, financial, and commercial levels.” — **Rasmus Toft-Kehler, CEO of UNION Therapeutics**[3]

Competitive Dynamics

  • Pfizer: Market leader with a diversified PDE4 portfolio, including apremilast for psoriasis[2][15].
  • Emerging Players: Arcutis Biotherapeutics (ARQ-151) and Verona Pharma (ensifentrine) are advancing late-stage candidates[12].

Therapeutic Applications

Respiratory Disorders

  • COPD and Asthma: Roflumilast reduces flare-ups by 17–25% in clinical trials[1][15].
  • Allergic Rhinitis: PDE4’s role in inflammation pathways supports broader respiratory use[2].

Dermatological Conditions

  • Psoriasis: Apremilast (Otezla®) generates $2.2 billion annually for Amgen[15].
  • Atopic Dermatitis: Topical roflumilast (Zoryve®) approved in 2023, with 70% market penetration in dermatology[10][15].

Neurological and Autoimmune Disorders

  • Alzheimer’s Disease: Shionogi’s PDE4 inhibitor targets neuroinflammation linked to cognitive decline[7].

Pipeline and Emerging Trends

Drug Developer Indications Stage
Orismilast UNION Therapeutics Psoriasis, Atopic Dermatitis Phase 2
ARQ-151 Arcutis Biotherapeutics Plaque Psoriasis Phase 3
PALI-2108 Palisade Bio Inflammatory Bowel Disease Preclinical

Innovations Driving Growth

  • Selective PDE4B/D Inhibitors: Improved safety profiles by targeting inflammation-linked isoforms[8].
  • Protein Degraders: Biotheryx’s candidates show 4,000x higher potency vs. traditional inhibitors[4].

Regulatory and Geographic Insights

Patent Expirations and Generics

  • Apremilast Generics: Expected post-2028, potentially lowering costs but intensifying competition[14].

Regional Market Share

  1. North America: Dominates with 45% market share due to high COPD prevalence and healthcare spending[1][10].
  2. Asia-Pacific: Fastest-growing region, driven by increasing R&D investments and healthcare access[1][12].

Future Outlook

  • Neurological Frontiers: 20% of ongoing trials target Alzheimer’s and multiple sclerosis[7][15].
  • Combination Therapies: Pairing PDE4 inhibitors with biologics to enhance efficacy in autoimmune diseases[6].

Key Takeaways

  • PDE4 inhibitors are transitioning from respiratory/dermatological uses to neurological applications.
  • Patent expirations and next-gen therapies will reshape market dynamics by 2030.
  • Strategic acquisitions and selective inhibitors are mitigating historical challenges.

FAQs
1. What are PDE4 inhibitors used for?
They treat COPD, psoriasis, atopic dermatitis, and are being explored for Alzheimer’s[1][7][15].

2. Which companies lead in PDE4 development?
Pfizer, UNION Therapeutics, and Arcutis Biotherapeutics are key players[2][3][12].

3. What limits PDE4 inhibitor adoption?
High costs and gastrointestinal side effects of first-gen drugs[1][4].

4. How are new PDE4 drugs improving efficacy?
Selective targeting (e.g., PDE4B/D isoforms) and prodrug formulations enhance tolerability[8][13].

5. What’s next for the PDE4 market?
Expansion into neurodegenerative diseases and combination therapies will drive growth[6][7].

References

  1. https://www.verifiedmarketreports.com/product/pde-4-inhibitors-market/
  2. https://synapse.patsnap.com/blog/analysis-on-the-research-progress-of-pde4-inhibitors
  3. https://uniontherapeutics.com/union-therapeutics-announces-acquisition-of-pde4i-compound-class-from-leo-pharma-with-oral-lead-candidate-orismilast-in-phase-2-2/
  4. https://www.biotheryx.com/pipeline/
  5. https://www.marketdataforecast.com/market-reports/pde-inhibitors-market-revenue
  6. https://www.globenewswire.com/news-release/2024/06/25/2904083/0/en/PDE4-Inhibitor-Market-to-Exhibit-Substantial-Growth-Rate-During-the-Study-Period-2020-2034-DelveInsight.html
  7. https://www.pharmaceutical-technology.com/data-insights/shionogi-gets-grant-for-inhibitors-of-pde4-for-treating-inflammatory-and-other-diseases/
  8. https://uniontherapeutics.com/union-therapeutics-a-s-announces-new-paper-on-clinical-potential-of-the-emerging-class-of-pde4b-d-inhibitors-published-in-journal-of-dermatology-and-therapy/
  9. https://pmc.ncbi.nlm.nih.gov/articles/PMC9370432/
  10. https://virtuemarketresearch.com/report/phosphodiesterase-inhibitor-market
  11. https://www.businesswire.com/news/home/20240305619814/en/Phosphodiesterase-4-PDE4-Inhibitor-Market-to-Witness-Significant-Growth-by-2034-Driven-by-In-depth-Industry-Analysis-and-Forecast---ResearchAndMarkets.com
  12. https://www.abnewswire.com/pressreleases/phosphodiesterase4-pde4-inhibitor-market-to-witness-upsurge-in-growth-during-the-study-period-20202034-assesses-delveinsight_687789.html
  13. https://www.globenewswire.com/news-release/2024/07/19/2915861/0/en/Palisade-Bio-Announces-European-Patent-Office-Issued-a-Decision-to-Grant-Notice-for-Patent-for-Lead-Product-Candidate-PALI-2108.html
  14. https://www.epo.org/en/boards-of-appeal/decisions/t220295eu1
  15. https://pubmed.ncbi.nlm.nih.gov/39861739/

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