Last Updated: May 6, 2026

Details for Patent: 12,478,619


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Which drugs does patent 12,478,619 protect, and when does it expire?

Patent 12,478,619 protects BYSANTI and is included in one NDA.

This patent has seven patent family members in seven countries.

Summary for Patent: 12,478,619
Title:Method of treatment with milsaperidone
Abstract:Described herein is an improved method of treatment with iloperidone or milsaperidone, of a patient in need of such treatment, comprising accounting for an increase in a serum urate level of the patient during treatment with the iloperidone or milsaperidone.
Inventor(s):Mihael H. Polymeropoulos
Assignee: Vanda Pharmaceuticals Inc
Application Number:US18/965,591
Patent Claim Types:
see list of patent claims
Use;
Patent landscape, scope, and claims:

United States Patent 12,478,619 (Milsaperidone + Hyperuricemia/Gout Risk Management): Claim Scope, Likely Coverage, and Landscape

What does US 12,478,619 claim, in plain scope terms?

US 12,478,619 claims a method that manages risk from milsaperidone-associated increases in serum urate (hyperuricemia) by performing serum urate accounting/monitoring and layered patient management actions. The claims are built around a single core obligation: monitor serum urate during milsaperidone therapy and use that information to prevent or limit downstream gout/hyperuricemia consequences.

Claim 1 is the anchor

Claim 1 requires all of the following:

  • A method of reducing possibility of an adverse consequence from increase in serum urate in a patient
  • Patient is in need of treatment with milsaperidone
  • Patient is being administered a therapeutically effective amount of milsaperidone
  • The method includes accounting for the increase in serum urate level, where the accounting comprises monitoring the serum urate level

Stated as coverage mechanics, the claim is not limited to a specific clinical threshold for urate in Claim 1. It is limited to the act of monitoring serum urate as part of “accounting” to reduce adverse consequences from the urate rise.

Dependent claims expand actionability

Dependent claims add specific implementations:

  • Claim 2: Monitoring prevents/limits frequency or severity of disease/condition/symptom caused by hyperuricemia or gout.
  • Claim 3: Monitoring uses a biological sample and urate concentration testing.
  • Claim 4: Monitoring at defined milestones (prior to treatment and days 7/14/21/28).
  • Claim 5-8: Patient communication and behavioral/co-medication guidance:
    • Ask about gout prescription drugs before starting (Claim 5)
    • Inform about gout symptoms / ask if joint pain is present (Claim 6)
    • Reduce/avoid alcohol, sugar-sweetened beverages, high fructose corn syrup, purine-rich foods (Claim 7)
    • Reduce/avoid co-administration with diuretics, low-dose aspirin, niacin, immunosuppressant, cyclosporine (Claim 8)
  • Claim 9: Start/increase a urate-lowering medication if serum urate exceeds about 6 mg/dL
  • Claim 10: Discuss with rheumatologist or primary care physician
  • Claim 11: Ongoing monitoring or self-monitoring of gout symptom signs (pain, swelling, discoloration/redness, tenderness, warmth at affected joint)
  • Claim 12: Assess comorbidities and monitor development of cardiometabolic/renal endpoints tied to hyperuricemia risk:
    • Assess: obesity, congestive heart failure, metabolic syndrome, chronic kidney disease, hypertension, psoriasis, cancer, genetic condition associated with increased urate
    • Monitor: hypertension, chronic kidney disease, obesity, diabetes, nephrolithiasis, myocardial infarction, congestive heart failure
  • Claim 13: Instruct reduce/avoid physical trauma or risk thereof
  • Claim 14: Patient population: milsaperidone used for a specified set of psychiatric indications (e.g., schizophrenia spectrum, bipolar I acute manic/mixed, agitation associated with Alzheimer’s/dementia/autism, Parkinson’s Disease Psychosis, and other psychotic disorders)

Where is the strongest claim leverage likely to sit?

Core: “monitor serum urate during milsaperidone therapy”

For method patents, infringement often tracks whether a treating provider, sponsor, or clinical protocol performs the claimed steps. The broadest practical leverage is likely against:

  • Prescribing label-driven programs or REMS-like monitoring protocols that explicitly call for serum urate monitoring
  • Clinical trial protocols that specify urate monitoring schedules and symptom management consistent with Claims 4, 9, 11, and 12

The key point for scope is that Claim 1 does not require:

  • a specific urate threshold (that is Claim 9),
  • a specific timing schedule (Claim 4),
  • a specific comorbidity assessment list (Claim 12),
  • or specific lifestyle/co-medication instructions (Claims 5-8).

Thus, any program meeting Claim 1’s steps (milsaperidone-treated patient + serum urate accounting/monitoring to reduce adverse consequences from the urate increase) is closer to the “center of gravity.”

Added limitations tighten to the “how”

The dependent claims matter in enforcement and design-around:

  • Claim 4 locks timing to pre-treatment and days 7/14/21/28 (or about those days). Protocols outside those windows can reduce likelihood of matching Claim 4 exactly.
  • Claim 9 uses a specific decision threshold: ~6 mg/dL. That helps define a “trigger” standard.
  • Claim 7-8 impose a specific patient education and co-medication avoidance set. Those are operationally easier to implement or avoid in protocol design.
  • Claim 12 defines a structured risk stratification and follow-up endpoint list, which is more “programmatic” than purely lab testing.

What is the likely claim construction for key terms?

“accounting for the increase”

Claim 1 requires that accounting includes monitoring. Operationally, “accounting” is broader than just lab measurement. It implies the monitoring information is used to reduce adverse consequences from the serum urate rise.

“monitoring the serum urate level”

This reads as:

  • lab-based serum urate measurement, and
  • conducted during therapy (or at milestones including pre-treatment).

Claim 3 clarifies that it includes sampling and testing to determine urate concentration. That supports a construction that monitoring is not merely symptom tracking.

“milsaperidone”

Coverage is limited to the drug. A method that manages hyperuricemia from another antipsychotic does not fit the milsaperidone limitation.

“reduce possibility of an adverse consequence”

This is a functional statement. It does not require a specific outcome to be proven; it requires the method is aimed at reducing possibility. In practice, this means the method steps must be oriented to preventing/limiting hyperuricemia or gout consequences.

Claim chart style: what each dependent claim adds (coverage delta)

Claim Additional limitation beyond Claim 1 Practical effect on scope
2 Monitoring prevents/limits frequency/severity of hyperuricemia/gout-caused disease/condition/symptom Ties benefit outcome but not a threshold
3 Monitoring includes obtaining biological sample and testing to determine urate concentration Confirms lab testing step
4 Monitoring at milestones: prior to treatment and around days 7/14/21/28 Tightens schedule; helps match clinical protocols
5 Instruct patient to ask doctor/pharmacist about gout prescription drugs Adds medication history counseling
6 Instruct patient about gout symptoms or ask about joint pain Adds symptom education/screening
7 Lifestyle counseling: alcohol, sugar-sweetened beverages, high fructose corn syrup, purine-rich foods Adds nutrition guidance
8 Co-medication avoidance guidance: diuretics, low-dose aspirin, niacin, immunosuppressant, cyclosporine Adds drug interaction/risk management
9 Initiate/increase urate-lowering med if serum urate exceeds about 6 mg/dL Adds threshold trigger decision step
10 Instruct patient to discuss with rheumatologist/primary care physician Adds referral instruction
11 Monitoring/self-monitoring of gout symptoms; symptom list specified Adds symptom surveillance step
12 Assess specified comorbidities; monitor development of specified endpoints Adds risk stratification and follow-up plan
13 Instruction to reduce/avoid physical trauma Adds behavioral instruction affecting gout risk
14 Patient has defined psychiatric diagnosis set Limits population/indication scope

How broad is the “milsaperidone indications” limitation (Claim 14)?

Claim 14 constrains the “patient in need” to a listed set of psychiatric disorders, including:

  • schizophrenia and schizophreniform disorder
  • bipolar I disorder acute manic and mixed episodes associated with bipolar I
  • agitation associated with Alzheimer’s disease, dementia, autism
  • Parkinson’s disease psychosis
  • “another psychotic disease or disorder”

From a scope standpoint:

  • If a patient receives milsaperidone for those indications and the method includes the monitoring steps, Claim 14 is met.
  • If milsaperidone use is outside the listed diagnoses, Claim 14 can create a gating limitation for coverage.

What is the likely patent landscape around this concept?

US 12,478,619 sits in a cluster typical of second-generation risk management filings around:

  1. Drug-induced metabolic changes (here: urate)
  2. Preventing gout/hyperuricemia complications via monitoring and thresholds
  3. Patient education and co-morbidity/risk stratification to reduce clinical events

Even without full bibliographic metadata here, the claim architecture itself strongly signals how competitors and sponsors will respond:

  • Expect parallel filings targeting monitoring schedules, threshold-based urate-lowering triggers, and patient education checklists.
  • Expect design-around around (a) urate monitoring frequency, (b) use of a urate threshold, (c) symptom education timing/content, and (d) risk factor assessment lists.

Where could enforcement focus in practice?

The claims are method claims that map to real-world practice and trial protocols. Enforcement focus is likely to concentrate on:

  • Clinical trial protocols for milsaperidone that include predefined urate monitoring milestones and action steps when hyperuricemia is detected.
  • Commercial patient management programs (including physician instructions or patient materials) that instruct serum urate monitoring at specific timepoints and include threshold triggers or symptom checks.

If a provider follows a regimen that performs “monitoring the serum urate level” during milsaperidone treatment and uses it to reduce adverse consequences from urate increase, Claim 1 is the primary hook.

Design-around levers suggested by the claim structure

Competitors can reduce claim alignment by altering steps that correspond to dependent claims:

  • Avoid predefined days 7/14/21/28 schedule (Claim 4).
  • Avoid explicit urate threshold decision rule of ~6 mg/dL (Claim 9).
  • Avoid structured inclusion of the specified comorbidity and endpoint lists (Claim 12).
  • Avoid the specific patient counseling and co-med avoidance list (Claims 5-8, 10-11, 13).

However, the central issue is that Claim 1 requires monitoring serum urate as part of a method to reduce risk from urate increase. Any design-around must address that core concept, not just the “bells and whistles” in dependent claims.

Business implications: what does this mean for R&D, trials, and payer-facing protocols?

  1. Trial governance
    • If milsaperidone trials include serum urate monitoring and patient action steps keyed to urate changes, the protocol could track directly to Claim 1 and potentially Claim 4/9/11/12.
  2. Labeling and field medical
    • If field instructions or patient materials explicitly require urate monitoring during treatment to reduce gout risk, they likely intersect Claim 1.
  3. Comparator strategy
    • If competitors use different mechanisms to address urate risk without urate monitoring steps tied to milsaperidone treatment, they avoid the Claim 1 core.
  4. Operations
    • Claim 3 and Claim 4 make it operational: sample collection and urate testing at defined milestones.

Key Takeaways

  • US 12,478,619 is a method patent tied to milsaperidone-treated patients and serum urate monitoring to reduce risk of hyperuricemia-associated gout outcomes.
  • Claim 1 is broad: it covers any method that includes monitoring serum urate as “accounting” to reduce adverse consequences from serum urate increases during milsaperidone therapy.
  • Dependent claims narrow execution with specific lab timing (pre-treatment and around days 7/14/21/28), a clinical trigger (about 6 mg/dL), and concrete patient counseling and risk stratification lists.
  • The patent landscape implication is that urate monitoring programs for milsaperidone, including trial protocols and patient materials, are likely to be the main enforcement and licensing targets.

FAQs

1) What step is mandatory for infringement risk under the broadest claim?

Monitoring serum urate level of a milsaperidone-treated patient as part of “accounting” to reduce adverse consequences from serum urate increase (Claim 1).

2) Do the claims require initiating urate-lowering medication?

No. Initiation or dose escalation of urate-lowering medication tied to a threshold (about 6 mg/dL) appears in a dependent claim (Claim 9). Claim 1 only requires monitoring.

3) Are exact timing milestones required?

Only for the milestone-specific dependent claim (Claim 4). Claim 1 does not specify timing.

4) Does the patent cover lifestyle counseling and co-med avoidance?

Yes, but through dependent claims (Claims 7 and 8), which add those instructions as additional limitations.

5) What patient diagnoses does the method cover?

Claim 14 limits covered patients to a listed set of psychiatric disorders for which milsaperidone is used (including schizophrenia spectrum, bipolar I acute manic/mixed, certain agitation states, and Parkinson’s disease psychosis, plus “another psychotic disease or disorder”).


References

[1] US Patent 12,478,619. “Method of reducing adverse consequence from increase in serum urate during milsaperidone treatment” (claims as provided).

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Drugs Protected by US Patent 12,478,619

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Vanda Pharms Inc BYSANTI milsaperidone TABLET;ORAL 220358-001 Feb 20, 2026 RX Yes Yes 12,478,619 ⤷  Start Trial METHOD FOR THE ACUTE TREATMENT OF MANIC OR MIXED EPISODES ASSOCIATED WITH BIPOLAR I DISORDER IN ADULTS BY REDUCING A POSSIBILITY OF AN ADVERSE CONSEQUENCE RESULTING FROM AN INCREASE IN A SERUM URATE LEVEL IN A PATIENT ⤷  Start Trial
Vanda Pharms Inc BYSANTI milsaperidone TABLET;ORAL 220358-001 Feb 20, 2026 RX Yes Yes 12,478,619 ⤷  Start Trial METHOD FOR THE TREATMENT OF SCHIZOPHRENIA IN ADULTS BY REDUCING A POSSIBILITY OF AN ADVERSE CONSEQUENCE RESULTING FROM AN INCREASE IN A SERUM URATE LEVEL IN A PATIENT ⤷  Start Trial
Vanda Pharms Inc BYSANTI milsaperidone TABLET;ORAL 220358-002 Feb 20, 2026 RX Yes No 12,478,619 ⤷  Start Trial METHOD FOR THE TREATMENT OF SCHIZOPHRENIA IN ADULTS BY REDUCING A POSSIBILITY OF AN ADVERSE CONSEQUENCE RESULTING FROM AN INCREASE IN A SERUM URATE LEVEL IN A PATIENT ⤷  Start Trial
Vanda Pharms Inc BYSANTI milsaperidone TABLET;ORAL 220358-002 Feb 20, 2026 RX Yes No 12,478,619 ⤷  Start Trial METHOD FOR THE ACUTE TREATMENT OF MANIC OR MIXED EPISODES ASSOCIATED WITH BIPOLAR I DISORDER IN ADULTS BY REDUCING A POSSIBILITY OF AN ADVERSE CONSEQUENCE RESULTING FROM AN INCREASE IN A SERUM URATE LEVEL IN A PATIENT ⤷  Start Trial
Vanda Pharms Inc BYSANTI milsaperidone TABLET;ORAL 220358-003 Feb 20, 2026 RX Yes No 12,478,619 ⤷  Start Trial METHOD FOR THE TREATMENT OF SCHIZOPHRENIA IN ADULTS BY REDUCING A POSSIBILITY OF AN ADVERSE CONSEQUENCE RESULTING FROM AN INCREASE IN A SERUM URATE LEVEL IN A PATIENT ⤷  Start Trial
Vanda Pharms Inc BYSANTI milsaperidone TABLET;ORAL 220358-003 Feb 20, 2026 RX Yes No 12,478,619 ⤷  Start Trial METHOD FOR THE ACUTE TREATMENT OF MANIC OR MIXED EPISODES ASSOCIATED WITH BIPOLAR I DISORDER IN ADULTS BY REDUCING A POSSIBILITY OF AN ADVERSE CONSEQUENCE RESULTING FROM AN INCREASE IN A SERUM URATE LEVEL IN A PATIENT ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 12,478,619

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2024278999 ⤷  Start Trial
China 121218989 ⤷  Start Trial
European Patent Office 4687899 ⤷  Start Trial
Israel 324466 ⤷  Start Trial
South Korea 20260019503 ⤷  Start Trial
Mexico 2025014073 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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