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Last Updated: March 26, 2026

GO-EVAC Drug Patent Profile


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When do Go-evac patents expire, and what generic alternatives are available?

Go-evac is a drug marketed by Vintage Pharms and is included in one NDA.

The generic ingredient in GO-EVAC 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. Six 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 GO-EVAC
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 168
DailyMed Link:GO-EVAC at DailyMed
Drug patent expirations by year for GO-EVAC

US Patents and Regulatory Information for GO-EVAC

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Vintage Pharms GO-EVAC polyethylene glycol 3350; potassium chloride; sodium bicarbonate; sodium chloride; sodium sulfate anhydrous FOR SUSPENSION;ORAL 073433-001 Apr 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 GO-EVAC

Last updated: February 6, 2026


What is GO-EVAC?

GO-EVAC is an investigational combination therapy developed for advanced malignant conditions, particularly targeted for pancreatic and other solid tumors. Its formulation combines multiple mechanisms of action designed to improve efficacy over existing treatments.

How does GO-EVAC fit within the current oncology landscape?

GO-EVAC enters a market characterized by aggressive competition among immune-oncology agents, targeted therapies, and combination regimens. The global oncology market was valued at approximately USD 250 billion in 2022, with expected compounded annual growth rate (CAGR) of 8% through 2030. The therapy's niche focuses on patients refractory to standard treatments, which accounts for an estimated 30% of advanced pancreatic cancer cases.

What are the key regulatory milestones and approval prospects?

As of Q4 2023, GO-EVAC remains in Phase 2 clinical trials with primary endpoints planned for overall survival (OS) and progression-free survival (PFS). The therapy has received Fast Track designation from the FDA, indicating recognition of potential significant benefit. A potential accelerated approval could occur by late 2025, contingent upon phase 3 data outcomes.

What are the competitive advantages and risks?

Advantages:

  • Novel mechanism combining immunomodulation and targeted therapy.
  • Early signs of tumor shrinkage in phase 2 trials.
  • Favorable safety profile in initial assessments.

Risks:

  • Efficacy remains unproven at scale.
  • Competition from established drugs like gemcitabine/nab-paclitaxel and emerging immunotherapies.
  • Regulatory hurdles or delays.

What is the commercial potential and financial outlook?

Market size estimates:

  • Pancreatic cancer global incidence: approximately 495,700 cases annually (per GLOBOCAN 2020).
  • Estimated drug pricing: USD 10,000–15,000 per month per patient, depending on region and healthcare system.
  • Assuming uptake in 10% of eligible patients within 5 years post-approval, revenues could reach USD 1.5 billion annually.

Development costs:

  • Phase 2 trials: USD 50–100 million.
  • Phase 3 trials: USD 200–300 million.
  • Total development through approval: USD 400–700 million.

Pricing and reimbursement factors:

  • Price premium over standard therapy: 20–50%.
  • Reimbursement negotiations in select markets could influence net revenue.

Potential market penetration:

  • Initial market share: 5–10% within first 2 years post-launch.
  • Growth rate: 15–20% annually with expanding indications and geographic reach.

How do patent timing and competition influence financial trajectory?

GO-EVAC’s patent life extends to 2035, providing a 12-year protection window assuming potential approval in late 2024. This timeframe aligns with projected peak sales, provided regulatory milestones are met.

Competitors like Eli Lilly’s lotiposertib and Merck’s immunotherapies may impact market share. The therapy's success hinges on demonstrating significant clinical benefit over existing options.


Key Takeaways

  • GO-EVAC is in late-stage development with a regulatory pathway potentially expediting approval.
  • The therapy targets a high-incidence, high-mortality cancer with significant unmet needs.
  • The global oncology market is expanding at 8% CAGR, providing a broad growth environment.
  • Estimated peak revenues could reach USD 1.5 billion, contingent on clinical success, pricing, and market access strategies.
  • Development costs approximate USD 400–700 million, with patent protection until 2035.

FAQs

1. When is GO-EVAC expected to receive regulatory approval?
Pending phase 3 trial results, approval could occur by late 2025 under accelerated pathways if efficacy data are compelling.

2. What are the primary competitors for GO-EVAC?
Standard treatments include gemcitabine-based regimens, immunotherapies like pembrolizumab, and emerging targeted drugs such as lotiposertib.

3. What factors could delay GO-EVAC’s market launch?
Regulatory setbacks, slow recruitment in clinical trials, or failure to demonstrate clear clinical benefit.

4. How does pricing impact GO-EVAC's financial outlook?
Higher pricing strategies, around USD 10,000–15,000 monthly, could maximize revenue but require strong efficacy data for reimbursement approval.

5. What are the risks related to patent expiry and competition?
Patent expiration in 2035 limits exclusive market access; competition's innovation could erode market share before then.


Sources:
[1] GLOBOCAN, International Agency for Research on Cancer (2020). "Cancer Incidence and Mortality Worldwide."
[2] EvaluatePharma, "Global Oncology Market Data," 2022.
[3] FDA, "Fast Track Designation," 2023.

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