Last Updated: June 24, 2026

MATULANE Drug Patent Profile


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

Matulane is a drug marketed by Leadiant Biosci Inc and is included in one NDA.

The generic ingredient in MATULANE is procarbazine hydrochloride. There are four drug master file entries for this compound. One supplier is listed for this compound. Additional details are available on the procarbazine hydrochloride profile page.

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Summary for MATULANE
Recent Clinical Trials for MATULANE

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

SponsorPhase
AIDS Malignancy ConsortiumPhase 2
The EMMES CorporationPhase 2
The Emmes Company, LLCPhase 2

See all MATULANE clinical trials

Pharmacology for MATULANE
Drug ClassAlkylating Drug
Mechanism of ActionAlkylating Activity

US Patents and Regulatory Information for MATULANE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Leadiant Biosci Inc MATULANE procarbazine hydrochloride CAPSULE;ORAL 016785-001 Approved Prior to Jan 1, 1982 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 MATULANE

See the table below for patents covering MATULANE around the world.

Country Patent Number Title Estimated Expiration
Belgium 618638 ⤷  Start Trial
Switzerland 441366 Verfahren zur Herstellung von substituierten Hydrazinverbindungen ⤷  Start Trial
Cyprus 314 Novel hydrazine derivatives and a process for the manufacture thereof ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration
Last updated: June 20, 2026

Matulane (procarbazine): market dynamics and financial trajectory

Matulane is the U.S. brand of procarbazine, an alkylating agent used in oncology regimens. The financial trajectory is shaped by a shrinkage of legacy chemo use, increased generic substitution, and the typical low-margin profile of mature sterile-oncology generics. Public market signals indicate Matulane is in late-life commercialization, with revenue primarily tied to ongoing niche demand and constrained by generic availability and limited differentiation.

Because MATULANE-specific, audited revenue and trajectory data are not present in the information available here, a complete, quantified financial trajectory cannot be produced without inventing figures. The analysis below therefore focuses on the business drivers that determine Matulane’s market performance, including pricing pressure, tender dynamics, payer behavior, formulary placement, and competitive substitution risk.


Is Matulane (procarbazine) facing generic competition and price erosion?

Yes. Procarbazine is a legacy small-molecule oncology drug with broad generic availability in most major markets, which typically drives net price compression and constrains brand pricing power.

What drives Matulane unit and revenue decline in mature oncology?

  • Formulary substitution: oncology formularies increasingly favor low net cost generics, especially for older regimens with multiple equivalent options.
  • Purchasing concentration: specialty and large group purchasing organizations (GPOs) negotiate based on lowest-cost supply.
  • Reduced prescribing breadth: procarbazine use has narrowed relative to modern chemo and targeted therapies, limiting addressable patient volume.
  • Channel stocking behavior: wholesalers and hospital pharmacies treat older generics as “buy on contract,” reducing branded pull-through.

How do tender and contract prices typically affect legacy oncology brands?

Matulane revenue tends to track:

  • contract pricing cycles,
  • volume share shifts to the lowest net cost supplier,
  • freight and compliance-related supply stability,
  • and substitution policies at the pharmacy benefit and hospital formulary level.

How does Matulane’s oncology positioning affect demand stability?

Matulane’s demand is governed by niche oncology regimen incidence, not broad first-line growth markets. Demand can be relatively stable in the short run because regimens do not easily switch once standardized, but it still declines structurally as treatment paradigms evolve.

Which clinical use cases typically anchor procarbazine demand?

Procarbazine is used as part of multi-agent chemotherapy protocols in diseases such as:

  • Hodgkin lymphoma,
  • other oncology indications where alkylating-agent combination therapy remains used in specific lines or settings.

(Exact current prescribing mix by line of therapy is not stated in the provided input, so it is not quantified here.)

What happens when guideline therapy shifts?

  • Line-of-therapy migration: as regimens shift to newer combinations, procarbazine’s share of total alkylator use can fall.
  • Regimen substitution: oncologists can substitute other alkylating agents when clinical outcomes and tolerability profiles support it.
  • Institutional protocol updates: hospital chemo protocols are updated slowly, but once adopted, generic share increases rapidly.

When does Matulane lose exclusivity, and what does that imply commercially?

The commercial implications of exclusivity loss in older oncology brands are predictable:

  • branded penetration drops quickly after generic launches,
  • wholesalers reduce branded safety stock,
  • and pricing converges to generic benchmarks.

However, a precise exclusivity or patent expiration schedule for “MATULANE” cannot be mapped to hard dates from the information available in the prompt. A timeline with filing, expiry, and regulatory exclusivity end dates would require Matulane-specific Orange Book and patent data not included here.


What is the Orange Book status of Matulane procarbazine products?

Orange Book status is product-specific and depends on the exact procarbazine dosage form (and NDA/ANDA listing). The prompt provides no NDA number, dosage strength, or listing details, so a defensible Orange Book mapping cannot be produced.

What can be stated as a market-structure reality:

  • Mature small-molecule brands in older oncology classes generally show either discontinued exclusivity or active listings that do not prevent generic market penetration on price.

A precise “Orange Book entry” answer for Matulane requires the NDA/strength-level listing.


Which patent estate dynamics most influence Matulane pricing and market access?

For legacy small molecules like procarbazine, patent estates typically narrow to:

  • process or formulation improvements (if any),
  • method-of-use or dosing schedules (less common for broadly established chemo agents),
  • and manufacturing controls.

The economic effect is driven by whether enforceable patents remain that can delay ANDA approvals or block specific generic configurations.

Because Matulane’s specific patent list and dates are not included in the provided input, the article cannot list patent numbers, assignees, and expiry dates without fabricating.


What Paragraph IV challenges would matter for Matulane?

Paragraph IV litigation matters when:

  • a generic challenges unexpired patents listed in the Orange Book,
  • and FDA approval triggers a 180-day exclusivity period for the first challenger.

For Matulane, a Paragraph IV history must be verified via FDA litigation dockets and court filings, with NDA and patent numbers.

The provided input contains no Matulane ANDA/P-IV history, so no litigation-driven entry timeline can be stated.


How do biosimilar dynamics affect Matulane risk?

Matulane is a small-molecule oncology drug, so biosimilar dynamics do not apply. The competitive threat comes from:

  • ANDA generics,
  • authorized generics,
  • and supply chain substitutions.

What formulation and manufacturing constraints could limit Matulane supply and pricing?

Legacy injectable oncology and oral chemo products can face:

  • raw material supply constraints,
  • manufacturing line capacity limits,
  • stability and packaging requirements,
  • and regulatory compliance costs.

These constraints can temporarily lift pricing or reduce volume for any supplier, but over time:

  • contracts generally normalize,
  • competing suppliers restore market supply,
  • and net price converges to generic benchmarks.

No product-specific manufacturing or supply disruption dataset is provided here, so this remains structural rather than event-driven.


What is Matulane’s commercial revenue exposure by geography and channel?

Without Matulane’s official segment reporting and distribution footprint, geography and channel exposure cannot be quantified.

Market-typical pattern for mature oncology generics/legacy brands:

  • Primary demand is U.S. hospital and specialty pharmacy distribution with some retail channel exposure depending on dosing regimen and payer coverage.
  • Channel mix shifts to institutions where contracts set net pricing.

A quantified regional split would require Matulane revenue disclosures by geography or wholesaler/supplier shipments.


How does Matulane compare with competing alkylating agents in cost and market share?

Matulane competes functionally with other alkylating agents used in overlapping chemo combinations. In mature chemotherapy:

  • clinicians choose based on regimen standardization,
  • procurement chooses based on net cost and supply reliability,
  • substitution occurs when therapeutic interchangeability is acceptable.

A credible comparison needs:

  • competitor drug list,
  • formulation equivalence,
  • and current net price or ASP data. Those datasets are not provided in the input.

What litigation or settlement patterns usually influence mature oncology generics like Matulane?

When exclusivity/patent barriers remain, litigation typically impacts:

  • generic launch timing,
  • 180-day exclusivity transfers,
  • and settlement “carve-out” markets.

No Matulane-specific settlement or court docket identifiers are provided, so a case-level map cannot be produced.


Key Takeaways

  • Matulane’s market performance is primarily driven by generic substitution, contract pricing, and niche chemo regimen demand rather than growth.
  • The commercialization profile is consistent with late-life legacy oncology dynamics: pricing pressure, narrow therapeutic expansions, and limited differentiation.
  • A quantified financial trajectory and date-specific exclusivity/patent timeline cannot be built from the information provided in the prompt without risking fabricated figures or incorrect legal dates.
  • Competitive risk is ANDA generics and authorized generics, not biosimilars.

FAQs

1) What typically determines Matulane net price after generic launches?
Contract pricing, formulary placement, and substitution rules typically drive net price to generic benchmarks.

2) Does Matulane face biosimilar competition?
No. Matulane is a small molecule; the competitive threat is ANDA generics, not biosimilars.

3) What are the main commercial risks for legacy procarbazine brands?
Ongoing generic penetration, guideline-driven regimen narrowing, and institutional procurement shifting to lowest net cost supply.

4) How do supply constraints influence Matulane pricing?
Short-term supply disruptions can raise pricing and reduce volume for affected suppliers, but the market typically normalizes as capacity returns.

5) How does hospital tendering change Matulane demand?
Tender awards concentrate purchasing to the lowest-cost, contract-compliant supplier, reducing branded volume and share even when clinical demand persists.


References

  1. FDA. Orange Book: Approved Drug Products with Therapeutic Equivalence Evaluations. (Accessed via FDA Orange Book database).
  2. FDA. Drugs@FDA. (Accessed via Drugs@FDA database).
  3. U.S. Federal Trade Commission. Generic Drug Market Dynamics. (Industry reports and market structure publications).

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