Last Updated: May 25, 2026

Zoliflodacin - Generic Drug Details


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What are the generic drug sources for zoliflodacin and what is the scope of patent protection?

Zoliflodacin is the generic ingredient in one branded drug marketed by Entasis Therap and is included in one NDA. There are six patents protecting this compound. Additional information is available in the individual branded drug profile pages.

Zoliflodacin has sixty-two patent family members in thirty-seven countries.

One supplier is listed for this compound.

Summary for zoliflodacin
International Patents:62
US Patents:6
Tradenames:1
Applicants:1
NDAs:1
Finished Product Suppliers / Packagers: 1
Clinical Trials: 5
Patent Applications: 40
What excipients (inactive ingredients) are in zoliflodacin?zoliflodacin excipients list
DailyMed Link:zoliflodacin at DailyMed
DrugPatentWatch® Estimated Loss of Exclusivity (LOE) Date for zoliflodacin
Generic Entry Date for zoliflodacin*:
Constraining patent/regulatory exclusivity:
GENERATING ANTIBIOTIC INCENTIVES NOW
Dosage:
FOR SUSPENSION;ORAL

*The generic entry opportunity date is the latter of the last compound-claiming patent and the last regulatory exclusivity protection. Many factors can influence early or later generic entry. This date is provided as a rough estimate of generic entry potential and should not be used as an independent source.

Recent Clinical Trials for zoliflodacin

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

SponsorPhase
Global Antibiotics Research and Development PartnershipPhase 1
ParexelPhase 1
KCASPhase 1

See all zoliflodacin clinical trials

US Patents and Regulatory Information for zoliflodacin

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Entasis Therap NUZOLVENCE zoliflodacin FOR SUSPENSION;ORAL 219491-001 Dec 12, 2025 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Entasis Therap NUZOLVENCE zoliflodacin FOR SUSPENSION;ORAL 219491-001 Dec 12, 2025 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Entasis Therap NUZOLVENCE zoliflodacin FOR SUSPENSION;ORAL 219491-001 Dec 12, 2025 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Entasis Therap NUZOLVENCE zoliflodacin FOR SUSPENSION;ORAL 219491-001 Dec 12, 2025 RX Yes Yes ⤷  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

International Patents for zoliflodacin

Country Patent Number Title Estimated Expiration
Costa Rica 20110195 COMPUESTOS HETEROAROMÁTICOS ESPIROCÍCLICOS FUSIONADOS PARA EL TRATAMIENTO DE INFECCIONES BACTERIANAS ⤷  Start Trial
Taiwan 201020258 Chemical compounds 542 ⤷  Start Trial
Canada 2897887 COMPOSES ET PROCEDES POUR LE TRAITEMENT D'INFECTIONS BACTERIENNES (COMPOUNDS AND METHODS FOR TREATING BACTERIAL INFECTIONS) ⤷  Start Trial
San Marino T202000261 ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Zoliflodacin: Market Dynamics and Financial Trajectory

Last updated: April 25, 2026

Zoliflodacin is an investigational, orally dosed fluoroquinolone-class antibiotic being developed for bacterial infections, with a business model centered on near-term Phase 3 value realization and later global commercial expansion if approvals land. The financial trajectory depends on (1) approval timing and label scope, (2) competitive intensity in oral acute-care antibacterial therapy, and (3) how quickly clinical evidence supports broader indications and repeat prescribing. Near-term economics are dominated by Phase 3 and commercialization-readiness spending; long-term economics hinge on price discipline versus payer acceptance and hospital formulary adoption dynamics once oral alternatives exist.

What is the current commercial positioning for zoliflodacin?

Zoliflodacin is not yet a marketed product; it is in late-stage development (and must clear regulatory approval before it can capture revenue). Its commercial positioning is therefore determined by how payers and prescribers expect it to perform versus existing oral and IV antibiotics for the labeled infection types.

Development-to-market framing (what drives adoption)

Commercial uptake in oral antibacterials is typically driven by:

  • Clinical differentiation: demonstrated cure/success rates with safety comparable to standard-of-care.
  • Resistance and stewardship fit: lower risk of promoting resistant pathogens and better coverage alignment with local resistance patterns.
  • Operational convenience: oral dosing improves discharge readiness and reduces IV capacity pressure.

Key demand-side dynamics

In acute-care bacterial segments, payer coverage and prescriber choice track tightly to:

  • Guideline alignment (formulary placement and restriction levels)
  • Place-in-therapy (empiric vs targeted use)
  • Hospital antibiotic stewardship protocols (preauthorization and step therapy)

What market dynamics will shape zoliflodacin’s addressable opportunity?

The addressable market for an oral systemic antibacterial is segmented by (1) infection site, (2) patient acuity, (3) resistance prevalence, and (4) treatment setting. For zoliflodacin, the competitive set includes both older generics and newer branded oral regimens used in empiric or targeted settings.

Demand drivers

  • Oral switch and length-of-stay pressure: health systems prioritize faster transition from inpatient IV to outpatient oral therapy when outcomes remain comparable.
  • Antibiotic stewardship: clinicians face institutional protocols requiring evidence, microbiologic alignment, or restriction to specific pathogens.
  • Patient-level convenience: oral dosing reduces infusion logistics and can improve adherence in outpatient pathways.

Supply-side and pricing pressure

The oral antibiotic market is structurally price constrained by:

  • Generic competition for older fluoroquinolones and other established classes.
  • Branded competition in acute bacterial indications where multiple candidates pursue label expansion.
  • Payer expectations of incremental value: payers typically resist high list prices without strong differentiation or guideline preference.

How does competitive intensity affect zoliflodacin’s commercial trajectory?

In late-stage antibiotics, the most relevant competitive dynamics are not just clinical results, but how quickly a rival secures: 1) a first-in-class or best-in-class perception through trial endpoints, 2) guideline uptake, and 3) payer contracting leverage.

Competitor behavior patterns that matter

  • Fast follow-on claims: firms use label expansions and real-world evidence to preserve market share after launch.
  • Bundle contracting: managed care negotiates across multiple lines of anti-infectives, increasing price sensitivity.
  • Stewardship-linked access: hospitals restrict use to narrow criteria if alternatives are cheaper or if clinical evidence supports narrower indications.

Implication for zoliflodacin

If zoliflodacin’s clinical profile supports broader empiric use or stronger pathogen coverage than incumbents, it can earn earlier formulary uptake. If evidence narrows use to targeted pathogens or specific resistance contexts, adoption may be slower but still commercially attractive if pricing aligns with restricted access.

What is the financial trajectory path for zoliflodacin?

Because zoliflodacin is pre-commercial, the financial trajectory is best understood as a staged curve:

Stage 1: Late-stage development cash burn (pre-approval)

  • Spend is driven by Phase 3 program completion, regulatory submission, manufacturing scale-up, and quality systems.
  • Equity and debt financing (or partner milestone payments) typically determine runway.

Stage 2: Pre-launch cost ramp and first commercial year economics (post-approval, if approval lands)

Key early financial levers:

  • Launch sequencing: geographic timing and initial channel focus (hospital vs outpatient).
  • Commercial infrastructure build: sales force size, market access teams, and payer contracting.
  • Manufacturing ramp: gross margin depends on contract manufacturing terms, yield, and supply reliability.

Stage 3: Post-launch growth through label expansion and persistence

Ongoing financial levers:

  • Indication expansion (if supported by additional trials): raises addressable patient pools.
  • Market share capture: depends on guideline updates and formulary preference.
  • Cost of goods optimization: chemistry and manufacturing scale can compress COGS as volume increases.

What financial outcomes are most sensitive to label scope and trial endpoints?

For antibacterials, revenue sensitivity concentrates in two areas: (1) the number of patients eligible under the label and (2) payer willingness to cover at a given price versus lower-cost alternatives.

Revenue sensitivity matrix

Variable If favorable If unfavorable Typical financial impact
Label breadth Larger patient pool Narrow patient pool Faster revenue ramp; better scale economics
Clinical differentiation Better outcomes vs standard Comparable outcomes Higher payer acceptance; less price pressure
Safety profile Fewer withdrawals and access barriers Safety concerns Slower uptake; higher contracting friction
Resistance coverage Better fit in high-resistance regions Limited fit Slower share gains; more restricted use

What valuation logic investors will apply to zoliflodacin?

In antibiotics, the market tends to value products through milestone-driven probability and peak sales potential, then discounts by adoption risk and payers’ price sensitivity. Even without public revenues, investors will proxy the future value with:

  • Probability-weighted peak sales under a base, upside, and downside label scenario.
  • Time-to-approval and launch (cost of capital effect).
  • Competition-adjusted market share given generic availability and branded rivals.

Commercial “quality signals” investors track

  • Trial endpoints that support guideline adoption (cure rates, non-inferiority margins, and safety)
  • Evidence of real-world usability (oral adherence, pathogen coverage, resistance subgroups)
  • Speed and breadth of regulatory approval decisions

Market outlook: what matters for the next 12 to 36 months?

The next window is dominated by:

  • Regulatory review and launch readiness decisions that determine timing.
  • Trial interpretation and how regulators map evidence to label restrictions.
  • Early payer contracting posture (restricted vs preferred access).

If zoliflodacin secures broad labeling with clear differentiation, it can accelerate formulary uptake and reduce contracting friction. If the label is narrow or positioned as an alternative after failure of standard therapy, growth remains possible but becomes more dependent on stewardship-driven use and competitive pricing.

Key Takeaways

  • Zoliflodacin’s financial trajectory is a staged curve: development cash burn precedes post-approval cost ramp, with long-term upside dependent on label breadth, payer acceptance, and rapid guideline uptake.
  • The market is structurally price pressured by generics and managed care behavior, so adoption and contracting terms will determine net revenue more than list price.
  • Competitive intensity will influence how quickly zoliflodacin earns restricted versus preferred access in acute-care antibacterial pathways.
  • The most sensitive drivers of revenue are label scope, clinical differentiation versus standard-of-care, safety, and pathogen coverage fit in resistance-relevant settings.

FAQs

  1. Is zoliflodacin currently generating revenue?
    No. It is investigational and must receive regulatory approval before commercial sales.

  2. What most determines zoliflodacin’s launch economics?
    Label scope plus early payer contracting and formulary access determine patient eligibility and net pricing.

  3. How does generic competition affect zoliflodacin’s growth?
    It increases payer price sensitivity and pressures uptake unless zoliflodacin shows clear clinical differentiation and guideline positioning.

  4. What timeline factor matters most for valuation?
    Time-to-approval and time-to-launch, because they drive probability-weighted value and financing cost.

  5. Which market dynamic can slow adoption even with positive trials?
    Stewardship restrictions and payer access terms if label evidence supports only narrow or failure-based use.

References

[1] Bloomberg Information (methodological market framework for biotech/commercial valuation used in the industry).
[2] U.S. Food and Drug Administration (FDA) drug development and regulatory approval framework.
[3] Peer-reviewed literature on antibiotic stewardship and formulary access dynamics in acute-care antibacterials.

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