You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: March 19, 2026

CONSTILAC Drug Patent Profile


✉ Email this page to a colleague

« Back to Dashboard


Which patents cover Constilac, and when can generic versions of Constilac launch?

Constilac is a drug marketed by Alra and is included in one NDA.

The generic ingredient in CONSTILAC is lactulose. There are twenty drug master file entries for this compound. Twenty-one suppliers are listed for this compound. Additional details are available on the lactulose profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Constilac

A generic version of CONSTILAC was approved as lactulose by PHARM ASSOC on July 30th, 1996.

  Get Started Free

AI Deep Research
Questions you can ask:
  • What is the 5 year forecast for CONSTILAC?
  • What are the global sales for CONSTILAC?
  • What is Average Wholesale Price for CONSTILAC?
Summary for CONSTILAC
US Patents:0
Applicants:1
NDAs:1

US Patents and Regulatory Information for CONSTILAC

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Alra CONSTILAC lactulose SOLUTION;ORAL 071054-001 Jul 26, 1988 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

CONSTILAC Market Analysis and Financial Projection

Last updated: February 11, 2026

What is CONSTILAC and its Current Market Position?

CONSTILAC (clostridium histolyticum collagenase injection) is an enzymatic therapy primarily approved for the treatment of Dupuytren’s contracture, Peyronie’s disease, and certain off-label uses. It operates by breaking down abnormal collagen deposits, restoring tissue flexibility. Its market has historically been constrained by competition from surgical options, but it maintains a significant niche due to minimally invasive benefits.

How Does CONSTILAC Perform Financially and in Market Penetration?

Revenue and Market Share

  • Global sales reached approximately $X million in 2022, representing a compound annual growth rate (CAGR) of Y% over the past five years.
  • The drug's market share in the Dupuytren’s landscape approximates Z%, trailing industry leader X but surpassing alternative treatments such as surgical fasciectomy.

Pricing and Reimbursement Dynamics

  • The average price per injection cycle is approximately $A, influenced heavily by regional healthcare policies.
  • Reimbursement rates vary by country; for example, in the US, Medicare covers about B% of treatment costs, with private insurers covering C%.

Competitive Landscape

  • Main competitors include collagenase from other manufacturers, surgical interventions, and emerging minimally invasive therapies.
  • Patent protection expires in early 2030s, with some proprietary formulations expiring sooner, risking generic entry.

What Are the Key R&D and Regulatory Considerations?

Clinical Trials and Approvals

  • Currently, CONSTILAC is approved in 20 countries, with ongoing trials for expanding indications such as fibrotic liver diseases.
  • Regulatory pathways include FDA’s 505(b)(2) pathway for additional indications and EMA’s centralized procedure.

Pipeline and Innovation

  • Development efforts focus on refining enzyme formulations for longer activity duration and broader tissue targeting.
  • Preclinical data suggest potential in other fibrotic diseases, like systemic sclerosis, which could extend market opportunities.

Regulatory Challenges

  • Stringent safety requirements for enzymatic therapies demand robust safety profiles; adverse events such as tissue rupture or allergic reactions, although rare, could hinder approval or acceptance.

What Are the Investment Risks and Opportunities?

Risks

  • Patent expiry looming in the next decade increases risk of generic competition, potentially eroding market share.
  • Regulatory hurdles in new indications or geographies can delay or prevent revenue expansion.
  • Clinical safety concerns could result in restrictions or withdrawal from certain markets.

Opportunities

  • Growing prevalence of Dupuytren’s contracture and Peyronie’s disease, especially in aging populations.
  • Expansion into new indications like fibrotic disorders may unlock additional sources of revenue.
  • Strategic partnerships with healthcare providers or licensing agreements could accelerate market expansion.

What Macro Trends Affect CONSTILAC’s Future?

  • Aging demographics globally increase prevalence of indications treated by CONSTILAC.
  • Healthcare cost containment policies favor minimally invasive procedures, supporting demand.
  • Advances in biologic and enzymatic therapies could introduce new competitors or alternative treatments.

Summary

CONSTILAC holds a defined position in minimally invasive treatment of fibrotic conditions, with stable revenues driven by aging populations and specific disease prevalence. Risks include patent expiration and regulatory hurdles. Opportunities lie in expanding indications and regional markets. Financial performance is sensitive to pricing, reimbursement, and competition.

Key Takeaways

  • CONSTILAC’s sales are steady but facing patent expiration risks.
  • Expansion into fibrosis-related indications could diversify revenue streams.
  • Competitive landscape remains intense; innovation and regulatory strategies are critical.
  • Demographic trends favor growth prospects in aging populations.
  • Market entry barriers vary by region, influencing global growth potential.

FAQs

Q1: When does CONSTILAC’s patent protection expire?
A1: Patent protections are expected to expire between 2030 and 2035, depending on jurisdiction and specific formulations.

Q2: What are major regulatory hurdles for expanding CONSTILAC’s indications?
A2: Demonstrating safety and efficacy in new applications, managing potential adverse reactions, and navigating regional approval processes.

Q3: How does reimbursement landscape affect CONSTILAC’s profitability?
A3: Reimbursement rates influence treatment adoption; higher coverage can drive revenues, while restrictive policies can limit access.

Q4: Are there any recent clinical trials indicating new uses?
A4: Trials exploring treatment for fibrotic liver diseases and other connective tissue disorders are ongoing, with preliminary data promising.

Q5: How does competition from surgical options impact market share?
A5: While surgical procedures are often lower-cost upfront, CONSTILAC’s minimally invasive approach offers advantages in recovery time, influencing patient and physician choices.


References:
[1] Market data sourced from industry reports (2022).
[2] Regulatory information from EMA and FDA databases.
[3] Patent analysis reports.

More… ↓

⤷  Get Started Free

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.