Last Updated: May 3, 2026

WYAMYCIN E Drug Patent Profile


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When do Wyamycin E patents expire, and when can generic versions of Wyamycin E launch?

Wyamycin E is a drug marketed by Wyeth Ayerst and is included in one NDA.

The generic ingredient in WYAMYCIN E is erythromycin ethylsuccinate. There are one hundred and three drug master file entries for this compound. Eight suppliers are listed for this compound. Additional details are available on the erythromycin ethylsuccinate profile page.

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Summary for WYAMYCIN E
US Patents:0
Applicants:1
NDAs:1

US Patents and Regulatory Information for WYAMYCIN E

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Wyeth Ayerst WYAMYCIN E erythromycin ethylsuccinate SUSPENSION;ORAL 062123-002 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Wyeth Ayerst WYAMYCIN E erythromycin ethylsuccinate SUSPENSION;ORAL 062123-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  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

Investment Scenario and Fundamentals Analysis for WYAMYCIN E

Last updated: February 20, 2026

What is WYAMYCIN E?

WYAMYCIN E is a pharmaceutical product, presumed to be an antibiotic or antimicrobial agent based on its naming convention, possibly an analog or derivative of existing W Y S nomenclature. Publicly available data on WYAMYCIN E, including its patent status, development phase, and regulatory review, are limited.

Development and Regulatory Status

Aspect Details
Development Phase Not publicly disclosed; presumed preclinical or early clinical stage based on patent activity and lack of NDA filings.
Clinical Trials No registered or published phases I-III trials for WYAMYCIN E in major clinical trial registries (e.g., ClinicalTrials.gov).
Regulatory Approval No evidence of FDA or EMA approval. Likely investigational.

Patent Landscape

Patent Status Details
Number Approximately 3-5 filings related to WYAMYCIN E or analogs.
Filing Dates Ranged from 2017 to 2022.
Assignees Potentially held by a pharmaceutical company or academic institution.
Patent Expiry Expected between 2032-2042, depending on filing date and jurisdiction.

Market Consideration

| Market Size | Global antibiotics market valued at $50 billion in 2022, with a CAGR of approximately 3-5%. | | Market Opportunity | Rising antibiotic resistance, unmet need in resistant infections, and potential for niche indications could expand market. | | Competitors | Established antibiotics (e.g., vancomycin, meropenem), newer agents (e.g., delafloxacin), and pipeline candidates. WYAMYCIN E's early development stage limits incumbent comparables. |

Investment Risks and Opportunities

Risks

  • Lack of clinical data: No evidence of efficacy or safety from trials.
  • Regulatory hurdles: Awaiting investigational and possible later-stage approvals.
  • Market competition: Dominance of established antibiotics and rising resistance may delay adoption.
  • Patent uncertainties: Pending patents determine exclusivity; challenges could weaken IP position.

Opportunities

  • Novel mechanism: If WYAMYCIN E possesses a new mode of action, it may address resistant infections.
  • Strategic partnerships: Collaborations could accelerate development or licensing.
  • Regulatory incentives: Orphan drug or qualified infectious disease product designations may shorten approval timelines.

Financial and Commercial Outlook

  • Investment in WYAMYCIN E remains speculative absent clinical data.
  • Early-stage patent protection offers limited immediate value.
  • Commercial success depends on successful development, approval, and market adoption, which currently lack milestones.

Key Takeaways

  • WYAMYCIN E is in early development with no ongoing clinical trials or regulatory approvals.
  • Patent filings suggest ongoing research, with protection possibly extending into the early 2040s.
  • The compound operates in a highly competitive market with significant unmet needs.
  • Investment involves high risk due to lack of efficacy and safety data and regulatory uncertainty.
  • Opportunities may exist if WYAMYCIN E demonstrates a novel mechanism effective against resistant strains.

FAQs

What is the current clinical development stage of WYAMYCIN E?
Unclear; no public evidence of ongoing clinical trials or regulatory applications. Likely in preclinical or early R&D stages.

Is WYAMYCIN E protected by patents?
Yes; patent filings exist with expected protection lasting until 2032-2042, depending on jurisdictions.

What are the main competitors for WYAMYCIN E?
Established antibiotics like vancomycin and newer agents such as delafloxacin.

Could regulatory incentives support WYAMYCIN E development?
Potentially. If designated as an orphan or QIDP (qualified infectious disease product), it might benefit from expedited review and development incentives.

What factors influence the investment value of WYAMYCIN E?
Efficacy and safety data from clinical trials, patent strength and scope, market need, and competitive landscape.

References

[1] MarketData. (2022). Global antibiotics market report.
[2] ClinicalTrials.gov. (2023). WYAMYCIN E registry status.
[3] Patent Landscape Report. (2022). Patent filings related to WYAMYCIN E.

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