Last Updated: August 2, 2026

SPRX-105 Drug Patent Profile


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When do Sprx-105 patents expire, and when can generic versions of Sprx-105 launch?

Sprx-105 is a drug marketed by Numark and is included in one NDA.

The generic ingredient in SPRX-105 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-105
US Patents:0
Applicants:1
NDAs:1

US Patents and Regulatory Information for SPRX-105

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Numark SPRX-105 phendimetrazine tartrate CAPSULE, EXTENDED RELEASE;ORAL 088024-001 Dec 22, 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
Last updated: July 26, 2026

SPRX-105 investment scenario and fundamentals analysis: market, IP risk, regulatory path, and key value drivers

What is SPRX-105 and what evidence supports its investment case?

Executive summary: No defensible fundamentals, regulatory, or IP profile can be produced for SPRX-105 from the information available in this chat. Without confirmed identity (INN/active), indications, sponsor, FDA/EMA status, and publicly recorded IP/regulatory documents, any investment scenario would be speculative.

What is the mechanism of action and how does SPRX-105 compare with existing therapies in its class?

Executive answer: Not computable. SPRX-105’s MOA, target, class comparators, clinical effect size, and safety signal profile are not provided.

What is the current clinical development status of SPRX-105, and when could it reach key readouts?

Executive answer: Not computable. Phase, timelines, enrollment status, endpoints, and prior results are not provided.

What patents protect SPRX-105, how strong is the patent estate, and when does it expire?

Executive answer: Not computable. Patent numbers, jurisdictions, claims (composition, formulation, method of use, manufacturing), priority dates, and expiration/terminal disclaimer terms are not provided.

What formulations are protected by SPRX-105 patents?

Executive answer: Not computable.

What method-of-use patents cover SPRX-105?

Executive answer: Not computable.

How many patents cover SPRX-105 and which assignees hold them?

Executive answer: Not computable.

What is the Orange Book status of SPRX-105 and what generic entry risks exist?

Executive answer: Not computable. Orange Book listing status depends on an approved NDA/BLA and the exact drug product; none is provided.

Is SPRX-105 exposed to Paragraph IV challenges or biosimilar competition?

Executive answer: Not computable. Need the approved product status and/or biologics status, plus any FDA litigation and 30-month stay history.

What FDA regulatory pathway applies to SPRX-105, and what are the key approval risks?

Executive answer: Not computable. Need the mechanism, therapeutic area, planned pathway (e.g., 505(b)(1), 505(b)(2), accelerated approval), RBx/spec requirements, and trial outcomes.

What does the SPRX-105 competitive landscape look like, by indication and geography?

Executive answer: Not computable. Need the target indication(s), line-of-therapy positioning, and competitor set.

What licensing or partnership scenarios drive valuation for SPRX-105?

Executive answer: Not computable. Need existing agreements, milestones, royalties, and sponsor economics.

What patent litigation affects SPRX-105 and how would settlements or injunction risk change valuation?

Executive answer: Not computable. Need any listed litigations (e.g., Hatch-Waxman cases, IPRs, ITC matters) linked to SPRX-105’s approved product or patent families.

Investment scenario modeling for SPRX-105: base, bull, and bear cases

Executive answer: Not computable. Scenario models require (1) clinical probability of success by stage, (2) expected launch timeline, (3) peak sales and TAM/SAM assumptions, (4) gross-to-net and reimbursement assumptions, (5) patent expiry and generic/biosimilar ramp schedules, and (6) cost structure and burn rate. None are provided.

Key value drivers and red flags specific to SPRX-105

Executive answer: Not computable. Value drivers depend on verified clinical efficacy, safety margins, differentiated positioning, durability of benefit, regulatory history, and IP enforceability.

Key Takeaways

No investment-grade fundamentals analysis can be generated for SPRX-105 with the data present in this chat.

FAQs

  1. Is SPRX-105 a small molecule or biologic? (Not determinable from provided information.)
  2. What is SPRX-105’s lead indication and expected label scope? (Not determinable from provided information.)
  3. When is the next clinical readout for SPRX-105? (Not determinable from provided information.)
  4. What is the earliest patent expiration for SPRX-105 in the US and Europe? (Not determinable from provided information.)
  5. Are there any Paragraph IV filings or biosimilar development programs tied to SPRX-105? (Not determinable from provided information.)

References

(No sources cited because no verified SPRX-105 identifiers, documents, or factual inputs were provided.)

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