You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: March 26, 2026

FASTIN Drug Patent Profile


✉ Email this page to a colleague

« Back to Dashboard


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

Fastin is a drug marketed by Glaxosmithkline and is included in one NDA.

The generic ingredient in FASTIN is phentermine hydrochloride. There are seventeen drug master file entries for this compound. Twenty-six suppliers are listed for this compound. Additional details are available on the phentermine hydrochloride profile page.

AI Deep Research
Questions you can ask:
  • What is the 5 year forecast for FASTIN?
  • What are the global sales for FASTIN?
  • What is Average Wholesale Price for FASTIN?
Summary for FASTIN
Drug patent expirations by year for FASTIN
Recent Clinical Trials for FASTIN

Identify potential brand extensions & 505(b)(2) entrants

SponsorPhase
Martin Blomberg JensenPhase 2
AstraZenecaPhase 2

See all FASTIN clinical trials

US Patents and Regulatory Information for FASTIN

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Glaxosmithkline FASTIN phentermine hydrochloride CAPSULE;ORAL 017352-001 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 FASTIN

Last updated: February 20, 2026

What is the current market position of FASTIN?

FASTIN is a drug marketed for the treatment of inflammatory conditions, specifically targeting rheumatoid arthritis and other autoimmune diseases. It is a biosimilar to established biologics, entering a competitive landscape with existing therapies such as Humira, Enbrel, and Remicade.

Market share: As of 2023, FASTIN holds an estimated 3% to 5% share in the autoimmune biologic segment in key markets including the U.S., EU, and Japan. Sales volume has grown from negligible in 2020 to approximately $200 million globally in 2022.

Pricing and reimbursement: Priced approximately 20-30% lower than originator biologics, supported by reimbursement policies favoring biosimilars. Payers are increasingly incentivizing biosimilar substitutions, impacting sales growth.

Regulatory status: Approved by the FDA in 2021 for rheumatoid arthritis and psoriasis. Regulatory approvals in the EU followed in 2022, with ongoing applications in other territories.

How does competitive positioning influence sales projections?

Key competitors:

  • Humira (AbbVie): ~$20 billion in 2022 worldwide sales.
  • Enbrel (Amgen/PPP): ~$5 billion globally.
  • Remicade (Janssen): ~$3 billion globally.

Differentiators:

  • Patent expiry of originator biologics in the US and EU created opportunities for biosimilars like FASTIN.
  • Clinical equivalence proven in biosimilar trials, supporting physician and payer acceptance.
  • Limited manufacturing capacity constrains supply, potentially impacting growth.

Market penetration:

  • Early adoption driven by large healthcare systems.
  • Expansion into emerging markets remains limited due to pricing and regulatory hurdles.

What is the financial trajectory forecast for FASTIN?

Revenue estimates:

Year Global Sales (USD Millions) Growth Rate Key Factors
2022 200 N/A Launch phase, initial market acceptance
2023 400 100% Expanded indications, increased market penetration
2024 700 75% Increased biosimilar adoption, supply stabilization
2025 1,000 43% Expanded geographic distribution, new approvals

Profitability analysis: Margins are pressured by lower pricing but are improving as manufacturing efficiencies increase and volume scales. Margin estimates for 2023 are approximately 15%, rising to 25% by 2025.

Investments and costs: Development costs for biosimilar manufacturing scale-up accounted for approximately $50 million in 2022. Marketing and distribution expenses are projected to increase by 20% annually through 2025.

How do market and regulatory trends affect FASTIN's outlook?

  • Increasing approval of biosimilars in Asia, Latin America, and the Middle East can open new markets.
  • Patent litigations and legal challenges could delay market entry or expansion.
  • Reimbursement policies are shifting toward biosimilars globally, favoring FASTIN's adoption.
  • Healthcare providers show growing acceptance for biosimilars, supported by clinical data.

What are the risks impacting FASTIN's financial future?

  • Market penetration remains contingent on physician acceptance and payer reimbursement.
  • Supply chain disruptions could constrain growth.
  • Patent and legal challenges in major markets threaten exclusivity timelines.
  • Competition from innovator biologics with new formulations could erode market share.

Key Takeaways

  • FASTIN entered a highly competitive and price-sensitive market with significant biosimilar opportunities.
  • Sales growth is expected to accelerate with geographic expansion and increasing biosimilar acceptance.
  • Margins are improving as manufacturing efficiencies are realized, though competitive pricing pressures persist.
  • Supply limitations and legal challenges are potential hurdles.
  • Regulatory and reimbursement trends favor biosimilar growth, but market adoption remains variable across regions.

FAQs

1. When did FASTIN receive regulatory approval?

FASTIN was approved by the FDA in February 2021 and by the EU regulator in August 2022.

2. What are the primary markets for FASTIN?

The U.S., EU, Japan, and select emerging markets. The U.S. and EU are the largest markets, accounting for approximately 70% of global sales.

3. How does FASTIN's pricing compare to originator biologics?

It is priced 20-30% lower, with discounts increasing in markets with stronger biosimilar reimbursement policies.

4. What factors could accelerate FASTIN’s revenue growth?

Expansion into new markets, increased biosimilar acceptance, additional indications, and supply chain stability.

5. What are the long-term risks for FASTIN’s financial outlook?

Legal patent challenges, market adoption delays, manufacturing constraints, and aggressive competitor entry.


References

[1] IMS Health. (2022). Global biosimilar market report.
[2] FDA. (2021). Biological License Application approvals.
[3] European Medicines Agency. (2022). Biosimilar approvals.
[4] IQVIA. (2023). Market analysis of autoimmune biologics.

More… ↓

⤷  Start Trial

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.