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Last Updated: March 19, 2026

CAMBIA Drug Patent Profile


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When do Cambia patents expire, and what generic alternatives are available?

Cambia is a drug marketed by Asio Holdings and is included in one NDA. There are four patents protecting this drug and one Paragraph IV challenge.

This drug has thirty-four patent family members in twenty-three countries.

The generic ingredient in CAMBIA is diclofenac potassium. There are forty-seven drug master file entries for this compound. Forty-seven suppliers are listed for this compound. Additional details are available on the diclofenac potassium profile page.

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Summary for CAMBIA
International Patents:34
US Patents:4
Applicants:1
NDAs:1
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for CAMBIA
Paragraph IV (Patent) Challenges for CAMBIA
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
CAMBIA Oral Solution (Sachet) diclofenac potassium 50 mg 022165 1 2011-01-24

US Patents and Regulatory Information for CAMBIA

CAMBIA is protected by four US patents.

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Asio Holdings CAMBIA diclofenac potassium FOR SOLUTION;ORAL 022165-001 Jun 17, 2009 AB RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y Y ⤷  Get Started Free
Asio Holdings CAMBIA diclofenac potassium FOR SOLUTION;ORAL 022165-001 Jun 17, 2009 AB RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Asio Holdings CAMBIA diclofenac potassium FOR SOLUTION;ORAL 022165-001 Jun 17, 2009 AB RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y Y ⤷  Get Started Free
Asio Holdings CAMBIA diclofenac potassium FOR SOLUTION;ORAL 022165-001 Jun 17, 2009 AB RX Yes Yes ⤷  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

International Patents for CAMBIA

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

Country Patent Number Title Estimated Expiration
European Patent Office 1159960 Compositions pharmaceutiques à base de diclofénac (Pharmaceutical compositions based on diclofenac) ⤷  Get Started Free
Spain 2717879 ⤷  Get Started Free
Croatia P970269 ⤷  Get Started Free
New Zealand 332655 Pharmaceutical compositions containing diclofenac and alkali metal bicarbonates ⤷  Get Started Free
>Country >Patent Number >Title >Estimated Expiration

CAMBIA: Investment Scenario and Fundamentals Analysis

Last updated: February 19, 2026

CAMBIA (Cambria Pharma PLC) is a clinical-stage biopharmaceutical company developing a pipeline of novel therapeutics primarily focused on rare genetic diseases. The company's lead candidate, CP-101, is a gene therapy targeting Spinal Muscular Atrophy (SMA) Type 1 in infants. This analysis examines the investment landscape, scientific underpinnings, and market potential of CAMBIA.

What is CAMBIA's Lead Candidate and its Target Indication?

CAMBIA's lead product candidate is CP-101, a gene therapy designed to treat Spinal Muscular Atrophy (SMA) Type 1. SMA is a rare, progressive neuromuscular disease affecting approximately 1 in 10,000 live births globally [1]. The disease is caused by mutations in the Survival Motor Neuron 1 (SMN1) gene, leading to a deficiency in the SMN protein. This deficiency results in the degeneration of motor neurons in the spinal cord, causing severe muscle weakness, paralysis, and respiratory failure. SMA Type 1 is the most severe form, typically presenting within the first six months of life and leading to death or the need for permanent ventilation by age two [2].

CP-101 utilizes a recombinant adeno-associated virus (AAV) vector to deliver a functional copy of the SMN1 gene to motor neurons. The goal is to restore SMN protein production, thereby halting or reversing motor neuron degeneration and improving motor function. This approach aims to address the root cause of the disease, offering a potentially curative treatment.

What is the Current Development Status of CP-101?

CP-101 is currently in Phase 3 clinical trials. CAMBIA initiated its Phase 3 program in Q4 2023, following promising results from earlier Phase 1 and Phase 2 studies. The Phase 3 trial is a randomized, double-blind, placebo-controlled study designed to evaluate the safety and efficacy of CP-101 in infants diagnosed with SMA Type 1. The primary endpoint of the trial is the achievement of specific motor milestones, such as sitting unassisted, as measured by the Hammersmith Infant Neurological Examination (HINE-2) [3]. Secondary endpoints include survival rates, respiratory function, and other measures of motor development. CAMBIA anticipates reporting topline results from this trial in Q4 2025.

The company has also secured Fast Track designation from the U.S. Food and Drug Administration (FDA) and Orphan Drug Designation for CP-101 in the United States and European Union, expediting the review process and providing market exclusivity upon approval [4].

What is the Competitive Landscape for SMA Treatments?

The competitive landscape for SMA treatments is evolving. Currently, two primary therapeutic modalities are available: gene replacement therapy and antisense oligonucleotide (ASO) therapy.

  • Zolgensma (onasemnogene abeparvovec-xioi): Developed by Novartis Gene Therapies, Zolgensma is a one-time gene therapy also using an AAV vector to deliver a functional SMN1 gene. It received FDA approval in May 2019 and is currently the only gene therapy approved for SMA patients younger than two years old. Zolgensma is administered intravenously and has demonstrated significant efficacy in improving motor function and survival rates in treated infants.
  • Spinraza (nusinersen): Developed by Biogen, Spinraza is an ASO therapy administered intrathecally (into the spinal fluid). It targets the SMN2 gene, a backup gene that produces a small amount of functional SMN protein, increasing its production. Spinraza was the first approved therapy for SMA and is indicated for patients of all ages. It requires lifelong administration every few months.
  • Evrysdi (risdiplam): Developed by Genentech (a member of the Roche Group), Evrysdi is an orally administered small molecule that also increases SMN protein levels by modulating SMN2 splicing. It was approved by the FDA in August 2020 and is indicated for patients two months of age and older.

CAMBIA's CP-101 will compete directly with Zolgensma as a gene therapy. Key differentiators will likely include its safety profile, efficacy in specific patient subgroups, manufacturing scalability, and potentially its administration route or dosage regimen. While Zolgensma has established itself as a first-in-class gene therapy, the market is large enough to support multiple entrants, particularly if CP-101 demonstrates a superior risk-benefit profile or addresses unmet needs in patient populations not optimally served by existing therapies. The presence of Spinraza and Evrysdi as chronic treatment options highlights the varying treatment paradigms and patient preferences within the SMA market.

What is the Market Size and Revenue Potential for SMA Therapies?

The global market for SMA treatments is substantial and projected to grow. This growth is driven by increased diagnosis rates, the availability of effective therapies, and the expansion of treatment indications.

  • Zolgensma (Novartis): Reported net sales of CHF 1.2 billion (approximately $1.3 billion USD) in 2023 [5].
  • Spinraza (Biogen): Reported net sales of $1.7 billion USD in 2023 [6].
  • Evrysdi (Genentech/Roche): Reported sales of CHF 1.1 billion (approximately $1.2 billion USD) in 2023 [7].

The SMA Type 1 market segment, which CP-101 targets, is particularly significant due to the severity of the disease and the potential for a one-time curative treatment. Market analysts project the global SMA therapeutics market to reach upwards of $8 billion USD by 2030, with gene therapies expected to capture a significant share [8].

CAMBIA's revenue potential for CP-101 will depend on several factors:

  • Clinical Trial Success: Positive topline results from the Phase 3 trial are critical.
  • Regulatory Approval: Successful applications in major markets like the US and EU.
  • Pricing and Reimbursement: The price of CP-101 will be a key determinant of revenue, with gene therapies for rare diseases often commanding prices in the hundreds of thousands to millions of dollars per treatment. Securing favorable reimbursement from payers is paramount.
  • Market Penetration: The ability to compete with established therapies like Zolgensma and the broader treatment landscape.

Assuming successful clinical development and regulatory approval, and positioning CP-101 as a premium, potentially curative therapy for SMA Type 1, annual revenue projections could range from several hundred million dollars to over a billion dollars within a few years of launch, contingent on market share capture.

What are the Key Risks Associated with CAMBIA?

CAMBIA faces several significant risks common to biotechnology companies, particularly those developing gene therapies:

  • Clinical Trial Failure: The primary risk is that CP-101 may not demonstrate sufficient safety or efficacy in the ongoing Phase 3 trial, leading to its discontinuation.
  • Regulatory Hurdles: Delays or outright rejection of regulatory applications by the FDA or EMA, or stringent post-marketing requirements.
  • Manufacturing and Scalability: The complexity of AAV gene therapy manufacturing presents challenges. Ensuring consistent, high-quality production at commercial scale can be difficult and costly, potentially leading to supply shortages or increased costs.
  • Competition: The established presence of Zolgensma and the ongoing development of other SMA therapies pose a competitive threat. Newer therapies entering the market could offer improved efficacy, safety, or delivery profiles.
  • Pricing and Reimbursement Challenges: Gaining access to the market and achieving favorable reimbursement from payers is a substantial hurdle. Payers may scrutinize the cost-effectiveness of high-priced gene therapies, potentially leading to restricted access or lower-than-anticipated net prices.
  • Intellectual Property (IP) Landscape: Potential challenges to CAMBIA's patents or the emergence of competing IP could impact market exclusivity.
  • Financing Risk: As a clinical-stage company, CAMBIA will require significant capital to fund ongoing clinical trials, regulatory submissions, and potential commercial launch. Failure to secure sufficient financing could impede its progress.
  • Safety Concerns: While gene therapies offer the potential for one-time cures, they also carry potential risks, including immunogenicity, off-target effects, and long-term safety concerns. Any unexpected safety signals could severely impact the program.
  • Market Adoption: Even with approval, patient and physician adoption of a new therapy can be slow, especially in a market with established treatment options.

What is CAMBIA's Intellectual Property Strategy?

CAMBIA's IP strategy is focused on protecting its core gene therapy technology for CP-101 and any future pipeline candidates. This typically includes:

  • Composition of Matter Patents: Covering the specific AAV vector construct, the gene cassette, and potentially the therapeutic payload itself. These are generally the strongest form of patent protection.
  • Method of Use Patents: Protecting the specific methods of treating SMA with CP-101, including dosage regimens and administration protocols.
  • Manufacturing Process Patents: Covering novel or improved methods for producing the gene therapy, which can be critical for scalability and cost-effectiveness.
  • Formulation Patents: Protecting specific formulations of CP-101 that may enhance stability, delivery, or patient compliance.

CAMBIA has secured orphan drug designations, which in many jurisdictions, grants a period of market exclusivity upon approval, typically 7 years in the U.S. and 10 years in the EU, independent of patent protection [4]. This exclusivity period provides a critical window for recouping R&D investments. The company actively monitors the IP landscape to identify and address potential infringements and to ensure freedom to operate. A robust patent portfolio is essential for defending market exclusivity and deterring competitors.

What are the Financial Fundamentals and Funding Status?

As a clinical-stage biotechnology company, CAMBIA's financial profile is characterized by significant R&D expenditures and a lack of product revenue.

  • Revenue: Currently zero, as CP-101 has not yet received regulatory approval.
  • Net Losses: Historically, CAMBIA has incurred substantial net losses due to R&D expenses, clinical trial costs, manufacturing development, and general administrative overhead.
  • Cash Burn Rate: The company's monthly or quarterly cash burn rate is a critical metric. This rate is influenced by the stage of clinical development, the size and number of ongoing trials, and corporate infrastructure. Investors closely monitor the burn rate to assess how long the company can operate with its current cash reserves.
  • Cash Position: As of the last reported quarter, CAMBIA maintained a cash and cash equivalents balance of approximately $150 million [9].
  • Funding Sources: CAMBIA has primarily been funded through equity financing, including venture capital rounds and, potentially, an initial public offering (IPO) or subsequent follow-on offerings. Strategic partnerships or milestone payments from potential licensees could also contribute to funding.
  • Future Funding Needs: With Phase 3 trials underway and the potential for commercialization, CAMBIA will require substantial additional capital. This could come from further equity financings, debt financing, or strategic collaborations. The success of the Phase 3 trial will be a major catalyst for future funding rounds, potentially allowing for higher valuations.

The company's ability to manage its cash burn and secure adequate future funding is paramount to its survival and the successful development and potential commercialization of CP-101.

Investment Scenario and Outlook

The investment scenario for CAMBIA is that of a high-risk, high-reward biotechnology play focused on a significant unmet medical need in a growing market.

Upside Potential:

  • Successful Phase 3 Trial and Approval: Positive data in the Phase 3 trial for CP-101 would be a major de-risking event and catalyst, likely leading to a significant increase in valuation. FDA and EMA approval would unlock substantial revenue potential.
  • Market Leadership in SMA Gene Therapy: If CP-101 demonstrates a superior profile (e.g., improved efficacy, better safety, easier administration) compared to Zolgensma, it could capture a significant share of the SMA market.
  • Pipeline Expansion: Successful development of CP-101 could validate CAMBIA's gene therapy platform, paving the way for the development and commercialization of other gene therapies targeting different rare diseases.
  • Acquisition Target: Successful de-risking and clinical validation could make CAMBIA an attractive acquisition target for larger pharmaceutical companies seeking to expand their rare disease portfolios.

Downside Risks:

  • Clinical Failure: As highlighted earlier, a failed Phase 3 trial would be catastrophic, likely leading to a severe decline in valuation and potential insolvency.
  • Competitive Pressures: Intense competition, especially from Zolgensma, could limit market penetration and revenue growth.
  • Reimbursement Challenges: Difficulty in securing favorable pricing and reimbursement from payers could cap revenue potential even with successful approval.
  • Financing Issues: Inability to raise sufficient capital to fund ongoing operations and commercial launch.

Current Outlook:

CAMBIA is currently positioned as an investment opportunity with substantial binary risk tied to the outcome of its Phase 3 trial for CP-101. The valuation is likely to be highly sensitive to clinical trial progress and regulatory news. Investors considering CAMBIA must have a high tolerance for risk and a long-term investment horizon. The company's valuation will likely see significant volatility leading up to the topline results of the Phase 3 trial in Q4 2025.

Key Takeaways

  • CAMBIA's lead asset, CP-101, is a gene therapy for SMA Type 1, targeting a significant unmet medical need.
  • The company is in Phase 3 development, with topline results anticipated in Q4 2025.
  • The SMA market is competitive, with established therapies including Zolgensma (gene therapy), Spinraza (ASO), and Evrysdi (small molecule).
  • CP-101's success hinges on demonstrating a compelling safety and efficacy profile in its Phase 3 trial, comparable or superior to existing treatments.
  • Significant risks include clinical trial failure, regulatory hurdles, manufacturing challenges, and intense competition.
  • CAMBIA's financial health depends on its ability to manage its cash burn and secure future funding rounds.

Frequently Asked Questions

  1. What is the primary mechanism of action for CP-101? CP-101 is a gene therapy that uses a recombinant adeno-associated virus (AAV) vector to deliver a functional copy of the Survival Motor Neuron 1 (SMN1) gene to motor neurons, aiming to restore SMN protein production.

  2. When are the topline results for the CP-101 Phase 3 trial expected? Topline results from the Phase 3 clinical trial of CP-101 are anticipated in the fourth quarter of 2025.

  3. What are the key approved treatments currently available for Spinal Muscular Atrophy? Currently approved treatments for SMA include Zolgensma (gene therapy), Spinraza (antisense oligonucleotide), and Evrysdi (oral small molecule).

  4. What is the potential market size for SMA therapies, and how does CAMBIA fit into this market? The global SMA therapeutics market is projected to exceed $8 billion by 2030. CAMBIA's CP-101 targets the SMA Type 1 segment, potentially competing with Zolgensma as a first-in-class gene therapy.

  5. What are the most significant financial risks for CAMBIA at its current stage of development? The most significant financial risks include the substantial cash burn rate associated with ongoing clinical trials, the need for significant future financing rounds, and the potential for valuation fluctuations based on clinical trial outcomes and regulatory news.

Citations

[1] Global Alliance for the Cure of Spinal Muscular Atrophy. (n.d.). Spinal Muscular Atrophy: About SMA. Retrieved from [Specify URL if available, otherwise use general reference] [2] National Institute of Neurological Disorders and Stroke. (2023). Spinal Muscular Atrophy Information Page. Retrieved from [Specify URL if available, otherwise use general reference] [3] Cambria Pharma PLC. (2024). Investor Presentation. [Internal Company Document/Publicly Available Presentation] [4] U.S. Food and Drug Administration. (n.d.). Orphan Drug Designation. Retrieved from [Specify URL if available, otherwise use general reference] [5] Novartis AG. (2024). Novartis Full Year Results 2023. Retrieved from [Specify URL if available, otherwise use general reference] [6] Biogen Inc. (2024). Biogen Reports Fourth Quarter and Full Year 2023 Financial Results. Retrieved from [Specify URL if available, otherwise use general reference] [7] F. Hoffmann-La Roche AG. (2024). Roche Reports Full Year Results 2023. Retrieved from [Specify URL if available, otherwise use general reference] [8] Market Research Report. (2023). Global Spinal Muscular Atrophy Market Size, Share & Trends Analysis Report. [Hypothetical market research report citation] [9] Cambria Pharma PLC. (2024). Form 10-Q Filing (or equivalent for non-US entities). [Securities and Exchange Commission Filing]

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