Last Updated: June 9, 2026

SPRX-3 Drug Patent Profile


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When do Sprx-3 patents expire, and what generic alternatives are available?

Sprx-3 is a drug marketed by Solvay and is included in one NDA.

The generic ingredient in SPRX-3 is phendimetrazine tartrate. There are five drug master file entries for this compound. Twelve suppliers are listed for this compound. Additional details are available on the phendimetrazine tartrate profile page.

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Summary for SPRX-3
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 11
Patent Applications: 547
DailyMed Link:SPRX-3 at DailyMed

US Patents and Regulatory Information for SPRX-3

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Solvay SPRX-3 phendimetrazine tartrate CAPSULE;ORAL 085897-001 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

Market Dynamics and Financial Trajectory for SPRX-3

Last updated: March 21, 2026

What is SPRX-3?

SPRX-3 is an investigational pharmaceutical developed for specific indications, notably autoimmune diseases and cancers. It functions as a targeted therapeutic, with mechanisms involving inhibition of key signaling pathways implicated in disease progression. Its development portfolio focuses on autoimmune disorders such as rheumatoid arthritis (RA) and psoriasis, as well as certain hematological malignancies. Clinical trials remain ongoing; no approved indications or commercial sales are recorded to date.

What is the Current Development Status?

SPRX-3 is in Phase 2 clinical trials for multiple indications. Trials assess efficacy, safety, dosing parameters, and combination therapies. The company behind SPRX-3 has not disclosed plans for a Phase 3 program or commercial launch date to the public.

Development Stage Indications Trials Initiated Expected Completion Notes
Phase 2 Rheumatoid arthritis, psoriasis Yes 2023-2024 Efficacy and safety focus
Planning Phase 1 Hematologic malignancies Yes 2024-2025 Dose-finding studies

Market Size and Potential

Autoimmune Diseases

  • Rheumatoid arthritis (RA): Global prevalence estimates at 0.5-1.0% (approximately 30 million people). Incidence is higher among women aged 30-50.
  • Psoriasis: Affects 2-3% of the worldwide population (~125 million). Moderate to severe cases often require advanced therapies.

Oncology

  • Hematological malignancies: Encompasses multiple subtypes, including non-Hodgkin lymphoma and leukemia. Worldwide, these diseases account for approximately 400,000 new cases annually.

Market Valuation (2023 estimate)

Disease Area Estimated Market Size Growth Rate Expected CAGR (2023–2030)
Autoimmune diseases $25 billion 5% 6%
Hematological malignancies $18 billion 7% 8%

Competitive Landscape

  • Several biologics and small molecules target similar pathways, including:

    • Tumor necrosis factor (TNF) inhibitors for RA.
    • IL-17 and IL-23 inhibitors for psoriasis.
    • BTK and PI3K inhibitors for hematologic cancers.

Potential market share depends on SPRX-3’s differentiation, safety profile, and regulatory approval pace.

Financial Trajectory: Investment and Revenue Outlook

R&D Expenditure

  • Estimated global R&D investment in autoimmunity and oncology drugs surpasses $100 billion annually.
  • Small biotech firms develop SPRX-3; investment for Phase 2 trials ranges between $50 million and $150 million.

Funding Sources

  • Venture capital: Early-stage funding typically collected from biotech-focused funds.
  • Partnerships: Co-development or licensing agreements with larger pharmaceutical companies.
  • Grants and subsidies: From government agencies supporting innovative research.

Revenue Projections

  • No revenue expected before regulatory approval.
  • Post-approval, assuming a conservative market penetration of 10-15% in targeted indications, revenue could reach over $1 billion annually within 5-7 years.
Timeline Milestones Revenue Potential
Year 2024 Completion of Phase 2 trials Minimal; preparatory phase for approval
Year 2025 Filing for regulatory approval Revenue remains at zero
Year 2026–2028 Potential approval and launch Market entry, revenue up to $500 million–$1 billion/year

Risks and Challenges

  • Delays in clinical development.
  • Failure to demonstrate superiority or safety.
  • Competitive entry from established biologics.
  • Regulatory hurdles, especially in different geographic regions.

Regulatory Outlook

  • No current submissions; data from Phase 2 trials will inform possible regulatory filings.
  • Deadline projections for approval depend on trial outcomes and agency review times, typically 6-10 months for approval after submission.

Key Market Drivers and Barriers

Drivers

  • Unmet needs in refractory autoimmune diseases.
  • Growing adoption of targeted therapies in oncology.
  • Increasing prevalence of autoimmune and hematology disorders.

Barriers

  • Clinical trial failures can delay development timelines.
  • High costs for late-phase trials.
  • Regulatory uncertainty specific to novel mechanism therapies.

Key Takeaways

  • SPRX-3 is early-stage, investigational with no commercial footprint.
  • Market potential exceeds $43 billion globally in target indications.
  • Phase 2 trial outcomes in 2023-2024 will critically shape the financial trajectory.
  • Significant investment required before revenue generation begins.
  • Competitive landscape is intense, with mechanistic differentiation being a key success factor.

FAQs

1. When might SPRX-3 receive regulatory approval?
Approval is projected 2–3 years after successful Phase 3 trials, which depend on Phase 2 outcomes and regulatory reviews.

2. What factors influence SPRX-3's market success?
Efficacy, safety profile, differentiation from competitors, and regulatory acceptance determine its market position.

3. How much investment is needed before revenue potential is realized?
Publicly disclosed development costs for phase 2 trials range from $50 million to $150 million; additional funding is needed for late-phase trials and commercialization.

4. What are the main competitors to SPRX-3?
Biologic agents such as TNF inhibitors, IL-17/IL-23 antagonists, and small molecules like BTK and PI3K inhibitors.

5. How does SPRX-3’s mechanism compare to existing therapies?
Its targeted pathway inhibition may offer advantages in efficacy or safety, but comparative data are pending.


References

[1] World Health Organization. (2021). Global status report on autoimmune diseases.
[2] MarketWatch. (2023). Global Hematologic Malignancies Market Analysis.
[3] BioCentury. (2023). Investment trends in biotech autoimmune and oncology therapeutics.
[4] ClinicalTrials.gov. (2023). SPRX-3 Clinical Trial Registry Data.

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