Last Updated: November 13, 2026

OBY-TRIM Drug Patent Profile

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When do Oby-trim patents expire, and when can generic versions of Oby-trim launch?

Oby-trim is a drug marketed by Shire Richwood and is included in one NDA.

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

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Summary for OBY-TRIM
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 34
Patent Applications: 1,097
DailyMed Link:OBY-TRIM at DailyMed

US Patents and Regulatory Information for OBY-TRIM

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Shire Richwood OBY-TRIM phentermine hydrochloride CAPSULE;ORAL 087764-001 Mar 18, 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

OBY-TRIM market dynamics and financial trajectory: pricing, demand drivers, channel structure, competitor pressure, and exclusivity-to-revenue path

Last updated: July 1, 2026

OBY-TRIM’s market profile is not available in the provided input, including core commercial facts needed to build a credible financial trajectory: FDA/label status, launch timing, NDC and dosage forms, pricing basis (WAC, ASP, net price), U.S. and ex-U.S. adoption, reimbursement coverage, sales history, and the patent/exclusivity timeline that governs generic and alternative-therapy risk.

What is OBY-TRIM’s current regulatory status and where is it marketed?
No dossier or regulatory data is included for OBY-TRIM. Without FDA approval status (and whether it is NDAs/BLA, 505(b)(2), OTC, or compounded), launch geographies, and label indications, market sizing and revenue forecasting cannot be tied to demand drivers with defensible granularity.

What label indications and patient populations drive OBY-TRIM demand?

No indication, line-of-therapy placement, or clinical endpoints are provided. Demand dynamics change materially by:

  • First-line versus add-on versus refractory use
  • Restrictive criteria (biomarker, prior therapy, dose titration)
  • Subpopulation sensitivity (age, comorbidities, contraindications)

What is the FDA route and what does that imply for uptake?

No pathway data (NME, 505(b)(2), accelerated approval, priority review, REMS) is provided. Commercial adoption and payer behavior depend on expected durability of labeling and time-to-expansion.


How do OBY-TRIM prices and reimbursement shape net revenue?
No pricing or reimbursement inputs are provided: list price, WAC-to-ASP conversion, rebates, GPO dynamics, coverage policies, or payer formularies.

What is the pricing basis and net-to-gross conversion?

No WAC, ASP, or modeled net price is supplied. Without these, financial trajectory is not computable in a way suitable for licensing, investment, or litigation risk.

How do formularies and utilization controls affect OBY-TRIM unit demand?

No managed-care uptake data exists in the provided input: formulary tiers, PA/step edits, quantity limits, or site-of-care restrictions.


Who are the direct competitors to OBY-TRIM and how do they impact share and margins?
No competitor set is included. Market dynamics require at least:

  • Therapeutic class mapping
  • Mechanism and clinical comparator list
  • Place-in-therapy and switching likelihood
  • Relative safety and convenience profiles (dose frequency, monitoring burden, administration route)

How does OBY-TRIM compare on efficacy, safety, and convenience?

No comparative clinical or real-world evidence is provided. Competitive pressure determines whether revenue scales with patient pool growth or is primarily a share game.

What generic, biosimilar, or alternative-therapy threats exist?

No patent/exclusivity or class patent landscape is provided in the input. Competitive timelines are the main driver of revenue slope for small-molecule and biologic categories.


When does OBY-TRIM lose exclusivity and what generic entry risks exist?
No exclusivity or patent estate information is included for OBY-TRIM. Without Orange Book or patent expiration data, it is not possible to map:

  • Launch-free periods
  • Paragraph IV risk windows
  • Settlement-triggered launch dates
  • Authorized generic or life-cycle strategy risk

How many patents protect OBY-TRIM and which are most commercially relevant?

No patent counts, claim scope (composition, method-of-use, formulation), or jurisdiction coverage is provided.

What is the likely timing of first generic entry in the U.S.?

No expiration/trigger dates are supplied, so launch timing cannot be derived.


What is OBY-TRIM’s litigation and settlement footprint that affects launch timing?
No litigation docket entries, Paragraph IV filings, or settlement terms are provided.

Which companies are challenging OBY-TRIM?

No challenger identifiers are included.

What settlements or consent decrees could shift revenue outlook?

No settlement data is provided.


What is OBY-TRIM’s U.S. and ex-U.S. revenue trajectory by year?
No sales history or revenue guidance is included. A financial trajectory requires at minimum:

  • Annual revenue (U.S., ex-U.S., total)
  • Units and script growth
  • Geographic mix and payer mix shifts
  • Launch year ramp and post-launch maturity
  • Inventory movements and channel inventory corrections (if public-company data exists)

What is OBY-TRIM’s manufacturing and supply chain risk profile and how can it impact financials?
No manufacturing site, capacity constraints, regulatory observations, or supply disruptions are provided. Supply risk can cause revenue volatility through backorders, forced allocation, and label compliance actions.

Are there known CMC or inspection risks that could impair continuity of supply?

No CMC/inspection history is included for OBY-TRIM.


How sensitive is OBY-TRIM’s revenue to payer policy changes and health technology assessment decisions?
No payer policy data is provided: CMS coverage decisions, Medicaid preferred drug lists, commercial formulary changes, or CADTH/NCJTHA outcomes.

What happens to demand if step edits or prior authorization tighten?

No utilization and PA rates are included.

How do budget impact models affect adoption?

No HTA inputs are provided.


Key Takeaways

  • OBY-TRIM’s market dynamics and financial trajectory cannot be constructed from the provided input because core commercial and regulatory inputs (FDA status, indications, pricing/reimbursement, competitor set, exclusivity/patent timeline, sales history) are not present.
  • Any attempt to forecast revenue slope, margin profile, or generic-entry risk would be non-falsifiable without at least Orange Book/exclusivity data and sales/pricing benchmarks.

FAQs

  1. What does OBY-TRIM’s FDA labeling say about patient eligibility and dosing, and how does that affect formulary coverage?
  2. What is OBY-TRIM’s ASP and net price trajectory, and what drives net-to-gross changes (rebates, chargebacks, GPO fees)?
  3. Which competitors in OBY-TRIM’s mechanism-of-action class most directly cap market share growth?
  4. When is the first likely generic entry date for OBY-TRIM in the U.S., based on exclusivity and patent expirations?
  5. How do Paragraph IV challenges and settlements around OBY-TRIM alter expected revenue through launch-prevention or delayed entry?

References

No sources were provided in the input.

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