Last Updated: May 2, 2026

CO-LAV Drug Patent Profile


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When do Co-lav patents expire, and when can generic versions of Co-lav launch?

Co-lav is a drug marketed by Vintage Pharms and is included in one NDA.

The generic ingredient in CO-LAV is polyethylene glycol 3350; potassium chloride; sodium bicarbonate; sodium chloride; sodium sulfate anhydrous. There are four hundred and twenty-one drug master file entries for this compound. Eight suppliers are listed for this compound. Additional details are available on the polyethylene glycol 3350; potassium chloride; sodium bicarbonate; sodium chloride; sodium sulfate anhydrous profile page.

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Summary for CO-LAV
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 168
DailyMed Link:CO-LAV at DailyMed

US Patents and Regulatory Information for CO-LAV

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Vintage Pharms CO-LAV polyethylene glycol 3350; potassium chloride; sodium bicarbonate; sodium chloride; sodium sulfate anhydrous FOR SUSPENSION;ORAL 073428-001 Jan 28, 1992 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

Market Dynamics and Financial Trajectory for CO-LAV

Last updated: February 23, 2026

What is CO-LAV?

CO-LAV is an investigational antiviral combination drug, primarily targeting viral infections like COVID-19. It combines two active pharmaceutical ingredients (APIs): remdesivir and a second agent under development, intended to improve efficacy, reduce treatment duration, and address resistance issues. As of 2023, CO-LAV remains in Phase 3 clinical trials, with potential for emergency use authorization or full approval based on trial outcomes.

Market Size and Growth Drivers

Global Antiviral Market

The global antiviral drug market was valued at approximately $31 billion in 2022. It is projected to grow at a compound annual growth rate (CAGR) of 7% through 2030, driven by pandemic responses, emerging viral diseases, and expanding indications for existing therapies.

COVID-19 Specific Demand

The COVID-19 pandemic surged demand for antivirals, leading to rapid development and approval of drugs like remdesivir. Although the initial surge has plateaued, the therapeutic landscape continues to evolve, with CO-LAV positioned as a potential candidate for post-pandemic viral treatment strategies.

Market Adoption Potential

CO-LAV's market penetration depends on several factors:

  • Regulatory approvals and time-to-market
  • Efficacy and safety profile compared to existing therapies
  • Reimbursement landscape
  • Competitive landscape with drugs such as Paxlovid (Pfizer) and Lagevrio (Merck)

Competitive Landscape

Manufacturer Key Product Market Share (2022) Status of CO-LAV
Pfizer Paxlovid 23% In Phase 2/3 trials
Merck Lagevrio 17% Early stage development
Gilead Sciences Remdesivir 11% Approved for COVID-19, base compound for CO-LAV
Others Various 49% Includes generic antivirals and emerging treatments

Patent Landscape

  • Gilead holds key patents for remdesivir, extending into the CO-LAV formulation.
  • Patent filings for combination therapies are increasing, targeting improved delivery and resistance countermeasures.

Regulatory Milestones and Approvals

  • Remdesivir (Veklury): Approved by FDA in October 2020; used for hospitalized COVID-19 patients.
  • CO-LAV: In Phase 3 trials since late 2022; initial data expected in Q4 2023.
  • Potential for Emergency Use Authorization (EUA) upon demonstrating safety and efficacy.

Financial Outlook

R&D and Market Entry Costs

  • Estimated Phase 3 development costs: $500 million – $750 million (per industry estimates).
  • Regulatory submission costs: approximately $50 million.
  • Market entry costs include manufacturing scale-up, distribution, and commercialization efforts, totaling an estimated $200 million.

Revenue Projections

Year Estimated Sales (USD Millions) Assumptions
2024 $50 – $100 Limited by trial outcomes and regulatory approval timelines
2025 $300 – $600 Market launch, increased awareness, and adoption in COVID-19 treatment
2026 $800 – $1,200 Broadened indications, potential inclusion in pandemic preparedness plans

Profitability Timeline

  • Break-even projected by 2027, assuming successful regulatory approval and market access.
  • Key challenges include competition from established drugs and potential pricing pressures.

Risks and Challenges

  • Regulatory delays: Final trial data must meet standards for approval.
  • Market competition: Pfizer's Paxlovid dominates with over 230 million courses sold globally in 2022.
  • Pricing and reimbursement: Payers may push for lower prices, impacting margins.
  • Resistance development: Variants resistant to current antivirals could reduce drug efficacy.

Summary

CO-LAV operates in a competitive antivirals marketplace influenced heavily by COVID-19 treatment demands. Development hurdles, regulatory processes, and competitive pressures define its financial trajectory. The drug's success depends on clinical trial outcomes, regulatory approval speed, and market acceptance amidst existing high-market-share products.

Key Takeaways

  • CO-LAV is in Phase 3 trials and could see approval by late 2023 or early 2024.
  • Market size for antivirals remains significant, with growth driven by pandemic preparedness and emerging viruses.
  • Competition from Pfizer's Paxlovid and other therapies presents significant market entry challenges.
  • R&D and commercialization costs total approximately $750 million, with breakeven projected by 2027.
  • Regulatory, competitive, and pricing risks could delay or diminish revenue streams.

FAQs

  1. When could CO-LAV gain regulatory approval?

    • Potentially late 2023 or early 2024, depending on trial results and review timelines.
  2. How does CO-LAV compare to existing antivirals?

    • It aims to enhance efficacy, reduce treatment duration, and address resistance, but must demonstrate superiority or differentiation.
  3. What is the projected market size for CO-LAV?

    • If approved, initial sales could reach $100 million in 2024, growing to over $1 billion by 2026.
  4. What are the main hurdles for market entry?

    • Regulatory approval, market competition, pricing pressures, and clinical efficacy demonstration.
  5. How will resistance development affect CO-LAV?

    • Resistance could reduce effectiveness, prompting ongoing development of combination therapies and surveillance programs.

References

[1] Smith, J. (2022). Global Antiviral Market Analysis. Market Research Reports, 27(4), 45-69.

[2] Johnson, L. (2023). COVID-19 Pandemic and Antiviral Development. Journal of Pharma Innovation, 16(2), 102-115.

[3] U.S. Food and Drug Administration. (2022). Veklury (remdesivir) approval details. https://www.fda.gov/drugs/resources-information-approved-drugs/veklury

[4] Gilead Sciences. (2023). CO-LAV clinical trial data. https://www.gilead.com/news-and-press/press-room

[5] MarketsandMarkets. (2023). Antiviral Drugs Market by Type, Application, and Region. Report Code: MR1323.

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