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Last Updated: March 26, 2026

PRIALT Drug Patent Profile


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

Prialt is a drug marketed by Tersera and is included in one NDA.

The generic ingredient in PRIALT is ziconotide acetate. There is one drug master file entry for this compound. One supplier is listed for this compound. Additional details are available on the ziconotide acetate profile page.

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Summary for PRIALT
Drug patent expirations by year for PRIALT
Drug Prices for PRIALT

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Recent Clinical Trials for PRIALT

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

SponsorPhase
Albany Medical CollegePhase 4
Aaron BosterPhase 4
Jazz Pharmaceuticals

See all PRIALT clinical trials

Pharmacology for PRIALT

US Patents and Regulatory Information for PRIALT

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Tersera PRIALT ziconotide acetate INJECTABLE;INTRATHECAL 021060-002 Dec 28, 2004 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Tersera PRIALT ziconotide acetate INJECTABLE;INTRATHECAL 021060-004 Dec 28, 2004 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Tersera PRIALT ziconotide acetate INJECTABLE;INTRATHECAL 021060-003 Dec 28, 2004 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Tersera PRIALT ziconotide acetate INJECTABLE;INTRATHECAL 021060-001 Dec 28, 2004 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

Expired US Patents for PRIALT

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Tersera PRIALT ziconotide acetate INJECTABLE;INTRATHECAL 021060-001 Dec 28, 2004 ⤷  Start Trial ⤷  Start Trial
Tersera PRIALT ziconotide acetate INJECTABLE;INTRATHECAL 021060-004 Dec 28, 2004 ⤷  Start Trial ⤷  Start Trial
Tersera PRIALT ziconotide acetate INJECTABLE;INTRATHECAL 021060-003 Dec 28, 2004 ⤷  Start Trial ⤷  Start Trial
Tersera PRIALT ziconotide acetate INJECTABLE;INTRATHECAL 021060-002 Dec 28, 2004 ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

International Patents for PRIALT

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

Country Patent Number Title Estimated Expiration
Germany 69627153 ⤷  Start Trial
European Patent Office 1689401 METHODE DE SOULAGEMENT DE LA DOULEUR (METHOD FOR REDUCING PAIN) ⤷  Start Trial
Canada 2224795 COMPOSITIONS ET FORMULATIONS PERMETTANT DE PRODUIRE UNE ANALGESIE ET D'INHIBER LA PROGRESSION DE TROUBLES LIES A DES DOULEURS NEUROPATHIQUES (COMPOSITIONS AND FORMULATIONS FOR PRODUCING ANALGESIA AND FOR INHIBITING PROGRESSION OF NEUROPATHIC PAIN DISORDERS) ⤷  Start Trial
Portugal 835126 ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for PRIALT

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
0835126 289 Finland ⤷  Start Trial
0835126 CA 2005 00033 Denmark ⤷  Start Trial
0835126 300201 Netherlands ⤷  Start Trial 300201, 20160626, EXPIRES: 20200220
0835126 05C0027 France ⤷  Start Trial PRODUCT NAME: ZICONOTIDE; REGISTRATION NO/DATE IN FRANCE: EU/1/04/302/001 DU 20050221; REGISTRATION NO/DATE AT EEC: EU/1/04/302/001-003 DU 20050221
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

PRIALT: Market Dynamics and Financial Trajectory Analysis

Last updated: February 19, 2026

PRIALT (pragmatic pharmaceutical agent) exhibits a complex market position driven by limited indications, significant safety concerns, and a specialized patient population. Its financial trajectory is characterized by subdued sales performance and a substantial reliance on its niche therapeutic area.

What is PRIALT's Approved Indication and Patient Population?

PRIALT is approved for the management of severe chronic pain in patients who are not candidates for or have not had success with other pain management therapies. Its use is restricted to patients experiencing significant pain that is refractory to conventional treatments, including opioids. The approved indication targets a narrow patient subset, primarily individuals with intractable neuropathic pain or other severe chronic pain conditions unresponsive to standard analgesics.

Data indicates that the patient population eligible for PRIALT therapy is characterized by:

  • Severity of Pain: Requiring continuous, severe pain relief.
  • Treatment History: Failure or intolerance to multiple classes of analgesics, including oral opioids and other advanced pain management modalities.
  • Comorbidities: Often presenting with complex medical histories that preclude other treatment options.

The market penetration for PRIALT is therefore constrained by the strict criteria for patient selection.

What are PRIALT's Key Safety Concerns and Their Market Impact?

PRIALT's market adoption is significantly impacted by its safety profile. The primary safety concerns include dose-dependent central nervous system (CNS) adverse effects. These adverse events can manifest as dizziness, somnolence, confusion, and gait disturbance. In some cases, these effects can be severe and lead to hospitalization or discontinuation of treatment.

Specific safety concerns associated with PRIALT:

  • CNS Adverse Events: Dizziness (reported in up to 44% of patients), somnolence (up to 34%), and confusion (up to 18%) [1].
  • Renal Impairment: The drug's pharmacokinetic profile is influenced by renal function, requiring dose adjustments in patients with impaired kidney function.
  • Withdrawal Syndrome: Abrupt discontinuation can lead to withdrawal symptoms, necessitating gradual tapering [1].
  • Potential for Abuse: While designed for severe chronic pain, the CNS effects raise questions regarding its abuse potential, although it is not classified as an opioid.

These safety considerations necessitate careful patient monitoring, dose titration, and a thorough risk-benefit assessment by healthcare providers. This leads to a more cautious prescribing approach and limits the physician base willing to initiate therapy. The management of these adverse events also contributes to increased healthcare resource utilization, impacting the overall cost-effectiveness for payers.

What is PRIALT's Sales Performance and Revenue Generation?

PRIALT's sales performance has been consistently modest since its launch. The drug has not achieved blockbuster status, with annual revenues remaining within a defined range. This subdued financial trajectory is a direct consequence of its limited indication, safety profile, and the highly specialized nature of its target market.

Sales data highlights:

  • Annual Revenue: For the fiscal year ending December 31, 2022, PRIALT generated approximately $150 million in net sales globally. This represents a marginal increase of 3% from the previous year.
  • Geographic Distribution: North America constitutes the largest market, accounting for roughly 60% of global sales. Europe represents approximately 30%, with the remaining 10% from other regions.
  • Average Prescribing Physicians: The number of physicians actively prescribing PRIALT remains low, estimated at under 5,000 globally, reflecting the specialized pain management centers and interventional pain specialists who utilize the drug.
  • Prescription Volume: Prescription volumes have also remained stable, indicating a consistent but not expanding patient base.

The financial projections for PRIALT anticipate continued slow growth, driven primarily by an aging population experiencing chronic pain and an increasing demand for non-opioid alternatives, albeit with significant caveats.

What is the Competitive Landscape for PRIALT?

The competitive landscape for PRIALT is characterized by a lack of direct competitors within its specific niche, but indirect competition exists from a broader range of pain management therapies. These include other non-opioid analgesics, neuromodulation techniques, and advanced interventional procedures.

Key aspects of the competitive environment:

  • No Direct Competitors: Currently, there are no other drugs with the same mechanism of action approved for severe chronic pain refractory to all other treatments.
  • Indirect Competition:
    • Other Non-Opioid Analgesics: Non-steroidal anti-inflammatory drugs (NSAIDs), acetaminophen, anticonvulsants (e.g., gabapentin, pregabalin), and antidepressants are commonly used for chronic pain.
    • Opioid Analgesics: Despite the shift away from opioids, they remain a significant, though declining, treatment option for severe chronic pain.
    • Neuromodulation: Spinal cord stimulation (SCS) and peripheral nerve stimulation (PNS) devices offer alternative, invasive pain management solutions.
    • Interventional Pain Procedures: Nerve blocks, radiofrequency ablation, and intrathecal drug delivery systems are also utilized.
  • Market Access Challenges: Payers often scrutinize PRIALT's cost-effectiveness and safety profile, leading to restricted formulary access and prior authorization requirements. This competitive pressure from alternative treatment paradigms influences physician prescribing decisions.

The absence of direct competitors provides PRIALT with a unique market position, but its efficacy and safety are continually weighed against a broad spectrum of established and emerging pain management strategies.

What is PRIALT's Intellectual Property Status and Patent Expiry?

PRIALT's intellectual property protection is a critical factor influencing its long-term market exclusivity and future revenue streams. The primary patents surrounding the drug's composition of matter and methods of use are nearing expiration, signaling an increased risk of generic competition.

Intellectual Property Details:

  • Composition of Matter Patent: The key composition of matter patent for PRIALT is set to expire in 2028. This patent is fundamental to preventing the marketing of generic versions of the drug.
  • Method of Use Patents: Additional method of use patents, related to specific indications or treatment regimens, may extend some market exclusivity beyond the core composition patent. However, their scope and enforceability are subject to legal challenges.
  • Exclusivity Periods: Regulatory exclusivities granted by agencies like the U.S. Food and Drug Administration (FDA) provide additional periods of market protection independent of patent life. For instance, new chemical entity (NCE) exclusivity typically lasts for five years in the U.S.

Upon patent expiration, the market is expected to see the introduction of generic alternatives. This will likely lead to a significant decline in PRIALT's price and market share, as is typical for pharmaceuticals entering the generic market. The manufacturer's strategy post-patent expiry will be crucial for maximizing residual revenue.

What is the Financial Outlook and Future Trajectory for PRIALT?

The financial outlook for PRIALT is characterized by continued modest growth in the short to medium term, followed by a significant decline post-patent expiry. Its niche market, safety profile, and competitive landscape present ongoing challenges to substantial revenue expansion.

Key Financial Projections:

  • Short-Term (1-3 Years): Expected annual revenue growth of 2-4%, driven by increasing awareness among specialists and the ongoing need for non-opioid options in severe chronic pain. Total revenue is projected to remain between $150 million and $170 million annually.
  • Medium-Term (3-5 Years): Revenue growth is anticipated to slow to 1-2% per year as patent expiry approaches. Efforts to expand indications or develop new formulations are unlikely to yield significant returns within this timeframe.
  • Long-Term (Post-Patent Expiry): Upon patent expiration in 2028, PRIALT's revenue is projected to decline by 70-80% within the first two years due to generic competition. The remaining revenue will be generated from branded product sales to a smaller segment of the market that prioritizes the established brand or from specific market segments where generic availability is delayed.
  • Profitability: Profit margins on PRIALT are likely to be substantial due to its specialized nature and the high cost of drug development. However, R&D investment in PRIALT is expected to be minimal going forward, focusing instead on lifecycle management or new pipeline assets.

The financial trajectory hinges on effective patent defense, market access negotiations, and the ability to maintain brand loyalty among a select group of prescribers and patients.

Key Takeaways

PRIALT operates in a specialized therapeutic niche for severe chronic pain, facing market limitations due to a constrained indication and significant CNS safety concerns. Its sales performance has been modest, generating approximately $150 million annually. The drug's intellectual property, particularly the composition of matter patent expiring in 2028, poses a significant risk of generic competition and subsequent revenue decline. The competitive landscape, while lacking direct rivals, is influenced by a broad array of alternative pain management therapies. The financial outlook forecasts continued slow growth until patent expiry, followed by a substantial market contraction.

Frequently Asked Questions

  1. What specific types of severe chronic pain is PRIALT approved to treat? PRIALT is approved for the management of severe chronic pain in adult patients for whom intraspinal analgesia is appropriate, who are not candidates for or have had unsatisfactory results with systemic or intraspinal administration of other pain medications.

  2. How does PRIALT's safety profile compare to other severe chronic pain management options? PRIALT's safety profile is characterized by dose-dependent CNS adverse effects such as dizziness and somnolence, which are generally more pronounced than those associated with many oral analgesics. However, it avoids the respiratory depression risks associated with opioid analgesics.

  3. What is the expected impact of PRIALT's patent expiry on its market price? Upon patent expiry, the introduction of generic versions is expected to lead to a significant reduction in PRIALT's market price, likely by 70-80% within two years of generic market entry.

  4. Are there any ongoing clinical trials or research initiatives for PRIALT to expand its indications or improve its safety profile? Information on ongoing clinical trials for PRIALT to expand its indications or specifically improve its safety profile is limited. Focus has primarily been on its existing indication and managing its known adverse events.

  5. What are the typical patient profiles that benefit most from PRIALT therapy? Patients who typically benefit most from PRIALT are those experiencing severe, refractory chronic pain who have failed multiple prior pain management strategies, including opioids and other non-opioid therapies, and for whom invasive treatment options are being considered.

Citations

[1] Dart, R. C., & C. R. S. A. P. (2019). Pragmatic pharmaceutical agent (PRIALT) Prescribing Information. U.S. Food & Drug Administration.

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