Last Updated: August 3, 2026

CEFOTAN Drug Patent Profile


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

Cefotan is a drug marketed by Pai Holdings Pharm and Teligent and is included in three NDAs.

The generic ingredient in CEFOTAN is cefotetan disodium. There are three drug master file entries for this compound. Three suppliers are listed for this compound. Additional details are available on the cefotetan disodium profile page.

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Summary for CEFOTAN
US Patents:0
Applicants:2
NDAs:3

US Patents and Regulatory Information for CEFOTAN

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Pai Holdings Pharm CEFOTAN cefotetan disodium INJECTABLE;INJECTION 050588-001 Dec 27, 1985 AP RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Pai Holdings Pharm CEFOTAN IN PLASTIC CONTAINER cefotetan disodium INJECTABLE;INJECTION 050694-001 Jul 30, 1993 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Teligent CEFOTAN cefotetan disodium INJECTABLE;INJECTION 063293-001 Apr 29, 1993 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Pai Holdings Pharm CEFOTAN cefotetan disodium INJECTABLE;INJECTION 050588-002 Dec 27, 1985 AP RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Pai Holdings Pharm CEFOTAN cefotetan disodium INJECTABLE;INJECTION 050588-003 Apr 25, 1988 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Pai Holdings Pharm CEFOTAN IN PLASTIC CONTAINER cefotetan disodium INJECTABLE;INJECTION 050694-002 Jul 30, 1993 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Teligent CEFOTAN cefotetan disodium INJECTABLE;INJECTION 063293-002 Apr 29, 1993 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

CEFOTAN (cefotetan) Investment Scenario and Patent/Regulatory Fundamentals Analysis

Last updated: July 7, 2026

Executive summary: Cefotetan’s US commercial and investment profile is constrained by mature lifecycle economics and near-certain generic availability dynamics. Cefotetan is an older-generation injectable cephalosporin with limited current expansion optionality versus newer protected antibiotics, and the investment case is driven by (1) residual demand by hospital formularies, (2) supply stability for a narrow-use injectable, and (3) any remaining exclusivity/patent shelter or market-authorization durability in specific geographies. A patent and Orange Book estate check is the primary gating item for whether new entrants face Paragraph IV risk, settlement-driven delay, or enforceable formulation/manufacturing/IP barriers.

What patents protect Cefotetan (cefotetan) and how strong is the patent estate?

Featured snippet answer: For cefotetan, the practical question for investors is whether any listed Orange Book patents (drug substance, drug product/formulation, or method of use) remain in force for the specific NDC(s) marketed in the relevant jurisdiction. Without active, listed patents, the estate strength is low and generic competition is the dominant factor.

Which patent types typically control cefotetan competition?

For older injectables, the enforceable universe usually narrows to one of the following:

  • Drug substance process patents (manufacturing route, purification, intermediates).
  • Drug product/formulation patents (reconstitution stability, pH buffers, solubilizers, lyophilized vs solution presentations, container/closure stability).
  • Method-of-use patents (indications, dosing regimens).
  • Conjugate/delivery system patents (less likely for a legacy cephalosporin unless a novel presentation exists).

How many patents cover cefotetan and where do they matter most?

Cefotetan’s investment relevance is tied to whether enforceable patents are listed to the reference listed drug (RLD) used for generic ANDA submissions in the US, or to national registrations in EU/UK/JP/CA. The market is typically controlled by:

  • US Orange Book patent listings for marketed NDCs
  • EU SPCs or national patents if any exist on the marketed salt/formulation
  • Method-of-use registrations that can block some generics if claims are active and infringement theories are credible

Actionable investment read-through: If no active, listed US patents cover the specific cefotetan injection presentation, the risk-adjusted returns skew toward supply and execution rather than litigation-driven delay.

What is the Orange Book status of Cefotetan, and what patents (if any) are listed to specific NDCs?

Featured snippet answer: The investor’s gating item is Orange Book listing status at the NDC level. Orange Book listings define whether Paragraph IV challenges are legally meaningful and whether potential 30-month stays or settlements could delay generic entry.

Orange Book listing mechanics investors use

  • RLD: the drug for which generic applicants must reference.
  • Patent type codes: substance, product, or use.
  • Expiration dates: determine timing of ANDA defenses and settlement leverage.
  • Terminal disclaimers: can collapse enforcement windows.

NDC-level mapping to investment exposure

For a product like cefotetan, different NDCs can represent:

  • different strengths
  • different dosage forms
  • different packaging sizes
  • different reconstitution requirements

Each NDC can carry different listed patents. A credible investment model needs NDC mapping to patent expirations, not just drug-level claims.

When does Cefotetan lose exclusivity in the US (and what are the likely generic launch scenarios)?

Featured snippet answer: For legacy injectables, exclusivity loss typically occurs through the earlier of listed patent expirations and any regulatory exclusivity windows. If patents are not listed or have expired, US generic entry is often immediate upon ANDA approval.

Exclusivity vs patents: how launches actually happen

  • If patents remain listed and enforceable: ANDA entrants must navigate either certification challenges or design-around.
  • If no enforceable patents remain: generic launch becomes time-to-approval and time-to-supply.

Generic launch playbook for cefotetan-like injectables

Even when patent barriers exist, execution barriers can slow rollout:

  • formulation and stability validation
  • sterilization and container/closure qualification
  • supply chain reliability for injectable vials/bags
  • hospital contracting cycles

This shifts the investment thesis from “won by IP” to “won by manufacturing reliability,” unless IP still has blocking force.

How many Paragraph IV challenges exist for Cefotetan, and which companies are challenging it?

Featured snippet answer: The real litigation signal for an investment case is active Paragraph IV activity tied to specific cefotetan NDCs. That determines likelihood of 30-month stays and settlement-driven delay.

Why Paragraph IV counts more than legacy claims

Paragraph IV challenges correlate with:

  • expected market entry timing
  • likelihood of settlements
  • perceived enforceability by generic counsel and inventors
  • patent quality and risk tolerance by challengers

Investment implication: If there are no recent Paragraph IV actions for cefotetan NDCs, the market signals that entrants either expect minimal damages risk or see insufficient remaining value to justify litigation.

What patent litigation affects Cefotetan, and how do settlements shape damages exposure?

Featured snippet answer: For mature generics, litigation outcomes matter mainly for damages windows during any period of protected marketing. The core investment issue is whether any ongoing cases involve a still-in-force, still-listed patent with a credible infringement theory.

Litigation data investors track

  • case filing dates
  • asserted patents
  • court jurisdictions (D. Del., E.D. Va., etc.)
  • trial/summary judgment schedule
  • settlement terms (date of generic launch, design-around constraints)
  • consent judgments and release scope

Settlement terms that move financial models

In cefotetan-like markets, settlement economics depend on:

  • launch calendar dates
  • exclusivity carve-outs for certain dosage strengths
  • supply obligations or non-infringement positions
  • design-around allowances that erode the remaining exclusory period

What formulations of Cefotetan are protected, and do formulation patents block generic substitution?

Featured snippet answer: Formulation patents are decisive when they protect the marketed presentation (for example pH-adjusted solutions, stability in specific containers, or reconstitution parameters). If formulation patents are active, generics may need reformulation and stability bridging.

Key formulation variables that typically create patentable differences

  • concentration ranges
  • buffering systems
  • solubilizers
  • excipients and preservatives
  • container/closure compatibility
  • sterilization conditions and shelf-life parameters

Investment read-through: If patents are product-formulation based, expect fewer “easy” design-arounds than with method-of-use claims. That can support pricing resilience during any remaining exclusivity window.

How does Cefotetan compare with other cephalosporins for investment risk: patent, generic, and demand profiles?

Featured snippet answer: Cefotetan’s risk profile tends to track legacy injectable cephalosporins: limited patent tail, stable but declining demand, and heavy sensitivity to hospital formulary and generic supply reliability.

Competitive set investors typically model

  • older cephalosporins with comparable inpatient use
  • broader-spectrum beta-lactams with current manufacturer dominance
  • newer agents with longer patent runways (competitive pressure on formulary placement)

Where cefotetan typically fits

Cefotetan’s competitive positioning depends on:

  • hospital guideline inclusion
  • surgical prophylaxis and intra-abdominal infection pathways
  • local antibiotic stewardship preferences
  • payer reimbursement dynamics for injectable antibiotics

What is the FDA regulatory status of Cefotetan, and what pathways matter for new entrants?

Featured snippet answer: Cefotetan is approved as an injectable antibiotic with an ANDA pathway for generics. Investment impact comes from approval activity, labeling changes, and any Citizen Petition-driven delays, not from novel biologic-style exclusivity.

Investor checklist

  • active label indications and dosing instructions
  • safety labeling changes (warnings, contraindications)
  • manufacturing site status changes and FDA inspections
  • any postmarketing commitments that affect supply reliability

What manufacturing/IP barriers exist for Cefotetan generics (sterility, stability, and container closure)?

Featured snippet answer: For injectables, the main barriers are CMC execution and stability/compatibility validation. Even if patent protection is weak, delayed approvals can occur due to sterile manufacturing controls and container-closure testing.

CMC friction points that affect entry timing

  • aseptic processing validation and sterility assurance
  • stability in clinically relevant conditions
  • leachables/extractables and container compatibility
  • reconstitution time and visible particulate specifications

Investment implication: A supply-constrained legacy drug can create value if manufacturing reliability is harder than expected for new entrants.

Revenue exposure: where does Cefotetan still monetize, and what are the key downside drivers?

Featured snippet answer: Cefotetan’s revenue exposure is concentrated in inpatient channels with procurement and formulary inertia. Downside drivers are (1) generic substitution, (2) negative stewardship shifts, and (3) manufacturing interruptions.

Upside levers that can sustain earnings

  • limited number of qualified suppliers
  • contracting relationships that slow switching
  • periodic outbreaks or facility-specific reliance
  • short-term supply gaps by competitors

Downside levers that can compress margins quickly

  • multiple ANDA approvals leading to rapid price competition
  • FDA enforcement actions at a small number of suppliers
  • shifts in guideline preference toward alternatives
  • inventory write-downs or batch recalls

Geographic coverage: where could Cefotetan remain protected or commercially differentiated?

Featured snippet answer: Protection and differentiation are typically jurisdiction-specific. EU/UK/JP/CA may have different patent landscapes and different data exclusivity rules; the commercial differentiation is often driven by supply chain structure rather than IP.

How to model cross-border risk

  • US patent/IP is usually the binding driver for ANDA economics.
  • EU SPCs or national patents can extend protection for specific formulations.
  • Local marketing authorization status can drive practical exclusivity if changes are needed for reformulation.

What would an “IP-blocked” vs “IP-free” scenario do to an investment thesis for Cefotetan?

Featured snippet answer: The distinction is binary in the near term for mature injectables: if active listed patents exist, expect litigation or design-around delays; if not, the investment thesis is supply and contracting.

Scenario A: Active, listed patents

  • probable entry timing: delayed by litigation outcomes or settlement launch dates
  • pricing: higher probability of sustained reimbursement at lower volatility
  • downside: litigation loss, injunction denial, or adverse claim construction

Scenario B: No active listed patents

  • probable entry timing: driven by ANDA approval and CMC readiness
  • pricing: rapid margin compression with generic substitution
  • downside: supply shocks can still create volatility, but IP will not slow generic entry

Key Takeaways

  • Cefotetan’s investment fundamentals are primarily determined by whether any active, NDC-referenced Orange Book patents exist that can block or delay generic entry.
  • If the Orange Book estate is inactive/expired at the relevant NDC level, generic substitution becomes the default financial model, and value hinges on manufacturing reliability and supply stability.
  • Patent litigation, Paragraph IV challenges, and settlements matter only if they connect to still-in-force, still-listed patents tied to the marketed presentation.
  • The near-term investment question is not demand growth; it is entry timing and supply continuity in a mature inpatient injectable market.

FAQs

  1. Does cefotetan have FDA exclusivity beyond patent protection?
  2. Which NDC strengths/forms of cefotetan most influence generic substitution risk?
  3. How do sterile manufacturing and container-closure validation affect ANDA launch timing for injectable cephalosporins like cefotetan?
  4. What litigation signals (case filings, asserted patent counts, settlement dates) predict delayed generic entry for legacy antibiotics?
  5. How should investors benchmark cefotetan against other cephalosporins in pricing and formulary replacement risk?

References (APA)

[No sources cited.]

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