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Last Updated: March 18, 2026

clindamycin phosphate - Profile


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What are the generic sources for clindamycin phosphate and what is the scope of patent protection?

Clindamycin phosphate is the generic ingredient in eighteen branded drugs marketed by Glenmark Pharms Ltd, Padagis Israel, Taro, Norvium Bioscience, Pfizer, Fougera Pharms, Padagis Us, Bausch, Alembic, Amneal, Encube, Quagen, Solaris Pharma Corp, Sun Pharma Canada, Zydus Lifesciences, Organon Llc, Pharmacia And Upjohn, Abraxis Pharm, Almaject, Bedford, Bristol Myers Squibb, Fresenius Kabi Usa, Hikma, Igi Labs Inc, Loch, Marsam Pharms Llc, Rising, Sagent Pharms Inc, Solopak, Teva Parenteral, Watson Labs, Baxter Hlthcare Corp, Sandoz Inc, Abbott Labs, Baxter Hlthcare, Boca Pharma Llc, Chartwell Rx, Encube Ethicals, Fougera Pharms Inc, G And W Labs Inc, Novast Labs, Pai Holdings Pharm, Ph Health, Taro Pharm Inds, Vintage Pharms, Xttrium Labs Inc, Carnegie, Epic Pharma Llc, Actavis Mid Atlantic, and Almirall, and is included in ninety-two NDAs. There are three patents protecting this compound and two Paragraph IV challenges. Additional information is available in the individual branded drug profile pages.

Clindamycin phosphate has thirty-five patent family members in twenty-one countries.

Summary for clindamycin phosphate
International Patents:35
US Patents:3
Tradenames:18
Applicants:50
NDAs:92
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for clindamycin phosphate
Paragraph IV (Patent) Challenges for CLINDAMYCIN PHOSPHATE
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
CLINDESSE Vaginal Cream clindamycin phosphate 2% 050793 1 2015-02-05

US Patents and Regulatory Information for clindamycin phosphate

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Glenmark Pharms Ltd CLINDAMYCIN PHOSPHATE clindamycin phosphate AEROSOL, FOAM;TOPICAL 210778-001 Sep 20, 2021 AT RX No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Padagis Israel CLINDAMYCIN PHOSPHATE clindamycin phosphate AEROSOL, FOAM;TOPICAL 090785-001 Mar 31, 2010 AT RX No Yes ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Taro CLINDAMYCIN PHOSPHATE clindamycin phosphate AEROSOL, FOAM;TOPICAL 210004-001 Mar 11, 2020 AT RX No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Norvium Bioscience EVOCLIN clindamycin phosphate AEROSOL, FOAM;TOPICAL 050801-001 Oct 22, 2004 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Expired US Patents for clindamycin phosphate

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Norvium Bioscience EVOCLIN clindamycin phosphate AEROSOL, FOAM;TOPICAL 050801-001 Oct 22, 2004 7,141,237 ⤷  Get Started Free
Padagis Us CLINDESSE clindamycin phosphate CREAM;VAGINAL 050793-001 Nov 30, 2004 6,899,890 ⤷  Get Started Free
Bausch CLINDAGEL clindamycin phosphate GEL;TOPICAL 050782-001 Nov 27, 2000 6,387,383 ⤷  Get Started Free
Pfizer CLEOCIN clindamycin phosphate SUPPOSITORY;VAGINAL 050767-001 Aug 13, 1999 6,495,157 ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

International Patents for clindamycin phosphate

Country Patent Number Title Estimated Expiration
Israel 192565 ⤷  Get Started Free
Peru 20070974 COMPOSICION FARMACEUTICA QUE COMPRENDE AGENTES DUALES ⤷  Get Started Free
Canada 2635992 MEDICAMENT UTILISE PAR VOIE TOPIQUE (MEDICAMENT FOR TOPICAL USE) ⤷  Get Started Free
European Patent Office 3324938 FORMULATIONS ET TRAITEMENTS TOPIQUES (TOPICAL FORMULATIONS AND TREATMENTS) ⤷  Get Started Free
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for clindamycin phosphate

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
1304992 2013/044 Ireland ⤷  Get Started Free PRODUCT NAME: CLINDAMYCIN AND TRETINOIN; REGISTRATION NO/DATE: PA1332/043/001 20130322
1304992 C300617 Netherlands ⤷  Get Started Free PRODUCT NAME: COMBINATIE VAN CLINDAMYCINE, DESGEWENST IN DE VORM VAN CLINDAMYCINEFOSFAAT EN TRETINOINE; NAT. REGISTRATION NO/DATE: RVG 109745 20130626; FIRST REGISTRATION: PA1332/043/001 20130322
1304992 122013000081 Germany ⤷  Get Started Free PRODUCT NAME: CLINDAMYCIN (ALS CLINDAMYCIN-PHOSPHAT) UND TRETINOIN; NAT. REGISTRATION NO/DATE: 85210.00.00 20130611; FIRST REGISTRATION: IRLAND PA1332/043/001 20130322
1304992 PA2013025,C1304992 Lithuania ⤷  Get Started Free PRODUCT NAME: CLINDAMYCINUM + TRETINOINUM; REGISTRATION NO/DATE: LT/1/13/3279/001, 2013 04 26 LT/1/13/3279/002, 2013 04 26 PA1332/043/001 20130323
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

Clindamycin Phosphate: Investment Scenario and Fundamentals

Last updated: February 23, 2026

What is the current market landscape for clindamycin phosphate?

Clindamycin phosphate is a broad-spectrum antibiotic used primarily to treat bacterial infections. It is available in topical, oral, and injectable formulations. The drug’s market is influenced by rising antimicrobial resistance, increasing bacterial infection rates, and expanding indications such as skin infections, abscesses, and pneumonia.

The global antibiotic market was valued at USD 50 billion in 2022, with clindamycin representing an estimated USD 300-400 million segment. The compound’s market growth is projected at a compound annual growth rate (CAGR) of 3-5% over the next five years, driven by increasing demand for resistant infection treatments and a shift towards outpatient and topical therapies.

What are key regulatory and patent considerations?

Clindamycin was first approved in the 1960s. The original patents expired in various jurisdictions between 2000 and 2010, leading to generic manufacturing. Recent regulatory trends favor simplifying approval processes for new formulations and combination therapies.

Patent landscapes show limited primary patents remaining for the original formulations; however, secondary patents exist for delivery mechanisms, formulations, and combinations. These secondary patents provide exclusivity until approximately 2030.

A notable regulatory pathway includes the FDA's 505(b)(2) process, allowing for streamlined approval of new formulations, such as liposomal or nanoparticle-based delivery systems, potentially extending commercial life cycles.

What are the key factors influencing investment?

Market drivers

  • Rising antimicrobial resistance necessitates new formulations and combination therapies.
  • Increasing prevalence of skin and soft tissue infections, especially in aging populations.
  • Growing use in dental and orthopedic applications.

Market barriers

  • Expiration of primary patents has resulted in commoditization and price erosion.
  • Regulatory hurdles for new formulations can be significant, requiring extensive safety and efficacy data.
  • Rising concerns over antibiotic stewardship impact prescribing practices.

R&D opportunities

  • Developing novel delivery systems (e.g., liposomal, nanotechnologies) could provide patent protection and improve efficacy.
  • Fixed-dose combination drugs with other antibiotics or anti-inflammatory agents.

Financial outlook and investment considerations

Manufacturers with late-stage formulations or innovative delivery systems can command premium prices and extend exclusivity periods. Market entry is straightforward for generic producers, but maintaining profitability depends on optimizing production costs and navigating pricing pressures.

Investors should monitor pipeline activities at major pharma companies, regulatory submissions for new formulations, and patent filings related to delivery technologies.

Competitive landscape

Leading companies include:

Company Key products R&D focus
Pfizer Original clindamycin formulations Liposomal and topical formulations
Mylan (now part of Viatris) Generic clindamycin products Cost-efficient manufacturing
Teva Oral and injectable clindamycin Combination therapies

Emerging biotech firms pursue nanotechnology-based delivery systems as differentiation points.

Summary of investment fundamentals

  • Market size: USD 300-400 million; expected compound growth rate of 3-5%.
  • Patent expiry: Original patents expired; secondary patents may protect new formulations until 2030.
  • R&D trends: Focus on delivery mechanisms and combination drugs.
  • Regulatory environment: Favorable for formulations under 505(b)(2), but safety approvals remain essential.
  • Competitive risks: Price erosion for generics; regulatory delays for novel drugs.

Key Takeaways

  • The mature segment’s revenue is declining, but R&D into delivery systems presents opportunities.
  • Companies with innovative formulations can extend market exclusivity.
  • Generic manufacturing remains highly competitive, with slim margins.
  • Regulatory pathways such as 505(b)(2) enable faster market entry for new formulations.
  • Market growth driven primarily by antimicrobial resistance and infection prevalence.

FAQs

Q1: What patent protections are available for new forms of clindamycin phosphate?
Secondary patents on delivery methods or formulations can provide patent protection until approximately 2030, but primary patents expired after 2010.

Q2: Are there significant regulatory hurdles for new clindamycin formulations?
Yes. New formulations require safety and efficacy data, although the 505(b)(2) pathway can expedite approvals for modifications.

Q3: What is the main growth driver for this drug?
Antimicrobial resistance and rising bacterial infections in aging populations increase demand for clindamycin treatments.

Q4: How does the competitive landscape affect investment?
Large pharma dominates existing patents. Innovators focusing on novel delivery systems can gain market differentiation. Generics remain highly competitive with slim margins.

Q5: What are the prospects for R&D in this space?
High. Liposomal and nanoparticle delivery systems, and combination therapies, are active areas with potential to extend patent life and improve treatment outcomes.


References

[1] Global Market Insights. (2022). Antibiotics Market Size.
[2] U.S. Food and Drug Administration. (2022). 505(b)(2) Regulatory Pathway.
[3] Pharma Intelligence. (2022). Clindamycin: Patent and Market Status.
[4] Grand View Research. (2022). Antibiotic Market Forecast.
[5] European Medicines Agency. (2022). Regulatory Guidelines for Antibiotic Development.

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