Last Updated: June 24, 2026

ALKINDI SPRINKLE Drug Patent Profile


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

Alkindi Sprinkle is a drug marketed by Eton and is included in one NDA. There are three patents protecting this drug.

This drug has fifty-six patent family members in twenty-five countries.

The generic ingredient in ALKINDI SPRINKLE is hydrocortisone. There are sixty-seven drug master file entries for this compound. Forty-one suppliers are listed for this compound. Additional details are available on the hydrocortisone profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Alkindi Sprinkle

A generic version of ALKINDI SPRINKLE was approved as hydrocortisone by IMPAX LABS INC on March 30th, 2007.

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Pharmacology for ALKINDI SPRINKLE

US Patents and Regulatory Information for ALKINDI SPRINKLE

ALKINDI SPRINKLE is protected by three US patents.

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Eton ALKINDI SPRINKLE hydrocortisone GRANULE;ORAL 213876-001 Sep 29, 2020 RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Eton ALKINDI SPRINKLE hydrocortisone GRANULE;ORAL 213876-003 Sep 29, 2020 RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Eton ALKINDI SPRINKLE hydrocortisone GRANULE;ORAL 213876-002 Sep 29, 2020 RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Eton ALKINDI SPRINKLE hydrocortisone GRANULE;ORAL 213876-004 Sep 29, 2020 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

EU/EMA Drug Approvals for ALKINDI SPRINKLE

Company Drugname Inn Product Number / Indication Status Generic Biosimilar Orphan Marketing Authorisation Marketing Refusal
Takeda Pharmaceuticals International AG Ireland Branch Plenadren hydrocortisone EMEA/H/C/002185Treatment of adrenal insufficiency in adults. Authorised no no no 2011-11-03
Diurnal Europe B.V. Alkindi hydrocortisone EMEA/H/C/004416Replacement therapy of adrenal insufficiency in infants, children and adolescents (from birth to < 18 years old). Authorised no no no 2018-02-09
Diurnal Europe B.V. Efmody hydrocortisone EMEA/H/C/005105Treatment of congenital adrenal hyperplasia (CAH) in adolescents aged 12 years and over and adults. Authorised no no no 2021-05-27
>Company >Drugname >Inn >Product Number / Indication >Status >Generic >Biosimilar >Orphan >Marketing Authorisation >Marketing Refusal

International Patents for ALKINDI SPRINKLE

See the table below for patents covering ALKINDI SPRINKLE around the world.

Country Patent Number Title Estimated Expiration
Australia 2014267041 Composition comprising hydrocortisone ⤷  Start Trial
Brazil 112015028025 composição farmacêutica adaptada para administração oral e regime de tratamento para o controle de insuficiência adrenal ⤷  Start Trial
Canada 2909060 COMPOSITION COMPRENANT DE L'HYDROCORTISONE (COMPOSITION COMPRISING HYDROCORTISONE) ⤷  Start Trial
China 105120848 Composition comprising hydrocortisone ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for ALKINDI SPRINKLE

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
0809498 10C0038 France ⤷  Start Trial PRODUCT NAME: ACYCLOVIR ET HYDROCORTISONE; NAT. REGISTRATION NO/DATE: NL 36 826 20100420; FIRST REGISTRATION: SK - 2108/08467-R 20091026
0809498 SPC/GB10/012 United Kingdom ⤷  Start Trial PRODUCT NAME: A COMBINATION OF ACYCLOVIR AND HYDROCORTISONE; REGISTERED: UK PL18191/0001-0001 20091112
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

ALKINDI SPRINKLE market dynamics and financial trajectory: sales trends, pricing drivers, payer access, exclusivity risk, and competitive outlook

Last updated: June 6, 2026

ALKINDI SPRINKLE (prednisolone oral granules; “prednisolone” for congenital adrenal hyperplasia) is a niche pediatric endocrine product with limited addressable volume, pricing and reimbursement driven by plan formulary position and specialty pharmacy distribution, and a profitability profile shaped by exclusivity windows tied to product-specific IP and FDA exclusivity. Market dynamics skew toward line-therapy stability (patients remain on a single regimen) but can shift quickly when a competing granule or equivalent pediatric formulation gains preferred status or when payers steer to lower net cost alternatives.

What is ALKINDI SPRINKLE and where does it fit in congenital adrenal hyperplasia treatment?

Featured snippet answer: ALKINDI SPRINKLE is a pediatric, prednisolone-based oral granule formulation used as a glucocorticoid replacement therapy in congenital adrenal hyperplasia (CAH), where dosing is individualized based on age, weight, and biochemical targets.

Patient and prescriber base

  • Primary use: CAH management in pediatric patients requiring glucocorticoid therapy.
  • Delivery system importance: granules support flexible dosing and administration in young children compared with tablet-based regimens.
  • Prescriber behavior: pediatric endocrinologists control regimen selection; switching is often constrained by caregiver tolerance, dosing accuracy, and monitoring requirements.

Why formulation matters commercially

  • For CAH, stable daily dosing is clinically important; granular formulations reduce barriers to adherence and caregiver administration.
  • Formulation-specific products can win formulary placement when they reduce administrative friction relative to alternatives.

What market dynamics most influence ALKINDI SPRINKLE demand?

Featured snippet answer: Demand is dominated by pediatric CAH prevalence and diagnosis rates, prescribing inertia once a child is stable, and payer preference decisions for preferred glucocorticoid formulations and net price.

Core demand drivers

  1. New pediatric diagnoses and early treatment initiation
    • CAH screening and early endocrinology follow-through expand the base of pediatric patients entering chronic therapy.
  2. Switching friction
    • Children and caregivers often continue the same product if it is tolerated and dosing is reliable. Switching to another prednisolone product can be delayed pending stability and insurance approval.
  3. Specialty pharmacy channel economics
    • Distribution through specialty pharmacies affects net-to-wholesaler and rebate mechanics, with payer-specific fulfillment rules.
  4. Reimbursement and prior authorization (PA)
    • Plans frequently require documentation of diagnosis (CAH) and dosing need to justify a branded pediatric granule product.

Competitive pressure points

  • Competitive products typically target one of three levers:
    • Equivalent glucocorticoid molecule access at lower net price.
    • A pediatric-friendly oral dosage form (granules, suspensions, or small-dose options).
    • Preferred formulary status secured through rebate and contracting.

How does payer coverage and net pricing shape ALKINDI SPRINKLE financial performance?

Featured snippet answer: For branded pediatric niche therapies, net sales hinge on rebate intensity, formulary tiering, and utilization management rather than pure list price.

Pricing structure and contracting dynamics

  • List price provides limited insight; net pricing is driven by:
    • Rebates for formulary placement
    • Patient assistance program participation (affecting manufacturer cash collections indirectly)
    • Contracted pricing with pharmacy benefit managers (PBMs) and specialty distributors

Utilization management patterns

  • PA and step edits can occur when plans consider lower-cost prednisolone alternatives.
  • Plan exceptions tend to be easier when the branded granule product is positioned as medically necessary for dosing accuracy and pediatric administration.

Specialty channel effects

  • Specialty pharmacy dispensing volumes are sensitive to:
    • Prior authorization turnaround time
    • Shipment adherence programs
    • Specialty hub enrollment requirements by the manufacturer

When does ALKINDI SPRINKLE face exclusivity and patent expiration that can shift the sales curve?

Featured snippet answer: Branded pediatric glucocorticoid products typically face step-down risk when product-specific composition, formulation, or use patents expire, and when regulatory exclusivities end for the NDA. Any generic or AB-rated entrant can trigger price erosion quickly if payer switching is allowed.

How to think about the exclusivity risk model (business view)

  • Two horizons drive value leakage:
    1. Regulatory exclusivity end date for the specific NDA (marketing protection)
    2. Patent estate end for product-specific claims that are asserted in Paragraph IV or litigation

Practical sales impact of generic entry

  • CAH patients are less likely to switch immediately if the alternative requires more cumbersome dosing, but payer cost pressure can override inertia through:
    • Mandatory formulary edits
    • Incentives for prescribers and patients to adopt the lower net-cost alternative
    • New PA criteria favoring AB-rated products

What is the Orange Book status of ALKINDI SPRINKLE and what does it imply for generic entry risk?

Featured snippet answer: Orange Book status determines which patents are listed for the NDA and whether generic entrants face exclusivity or patent barriers. Listed patents tied to the marketed product create timelines that structure generic readiness and Paragraph IV filing strategy.

What matters for enterprise planning

  • Patent list breadth (number of listed patents and their claim scope)
  • Whether key patents are:
    • Composition-of-matter
    • Formulation/dosage form
    • Method of use (CAH dosing regimen or patient population)
    • Manufacturing process
  • Expiration sequence that can create staggered generic entry windows

How many patents protect ALKINDI SPRINKLE and how strong is the patent estate?

Featured snippet answer: Patent estate strength for branded pediatric formulations depends on whether the claims concentrate around granule composition, particle size or release attributes, manufacturing controls, and specific glucocorticoid use in CAH.

Patent estate components that usually matter

  • Formulation patents
    • Protecting excipient system, granule structure, and stability.
  • Manufacturing patents
    • Protecting granulation, coating, or drying processes.
  • Method-of-use patents
    • Protecting therapeutic dosing approaches in CAH.
  • Timing impact
    • If formulation patents expire later than composition claims, generic entry can be delayed or require design-around.

What patent litigation or Paragraph IV challenges affect ALKINDI SPRINKLE?

Featured snippet answer: Litigation risk is the catalyst that can accelerate or delay generic launch, depending on whether asserted claims are weak, easy to design around, or likely to be enjoined.

Business relevance of litigation posture

  • Settlements can create:
    • “Authorized generic” risk
    • Launch date carve-outs
    • Payment-for-delay outcomes (where applicable)
  • Court outcomes determine whether generics can launch at risk or must wait for claim invalidation/expiration.

How do competing prednisolone pediatric formulations compare with ALKINDI SPRINKLE?

Featured snippet answer: Competitive substitution risk rises when rivals offer an AB-rated equivalent with comparable pediatric dosing practicality and when payers prefer the lower net-cost option.

Comparison dimensions that drive formulary outcomes

  • Dosage form usability for caregivers
  • Dose flexibility across pediatric weight bands
  • Stability and handling requirements (granule flow, mixing, storage)
  • Clinical positioning by prescribers for CAH dosing accuracy

Competitive landscape structure

  • Likely competitive set:
    • Other prednisolone pediatric dosage forms (granules, tablets split dosing, oral solutions)
    • Discounted generics of prednisolone products (where dosing and administration are acceptable)
  • Differentiation is typically tied to pediatric usability more than molecule novelty.

What could happen to ALKINDI SPRINKLE revenues if generics launch?

Featured snippet answer: Branded pediatric niche revenues usually decline sharply after first AB-rated availability if payers remove PA barriers and if switching is operationally feasible.

Expected revenue trajectory pattern

  • Initial period:
    • Net price discounts and contracting adjustments
    • Switching concentrated in payer-incentivized lives
  • Longer period:
    • Branded volume erosion in non-exception populations
    • Continued premium share in exception-driven or caregiver-preference segments

Where revenue downside is most likely

  • Plans with aggressive step edits and narrow coverage criteria.
  • PBM formularies where a lower-cost alternative becomes preferred.
  • Regions where specialty pharmacies switch fulfillment automatically based on payer directives.

What is the commercial strategy that typically sustains ALKINDI SPRINKLE margins pre-loss of exclusivity?

Featured snippet answer: Margin preservation relies on maintaining formulary placement through contracting, sustaining specialty pharmacy throughput, and reducing administrative barriers that slow patient onboarding.

Tactics that protect brand value

  • Demonstrate medical necessity and dosing practicality in PA submissions.
  • Maintain hub enrollment and caregiver support to reduce abandonment.
  • Tight contracting discipline to prevent “list-driven” under-rebated churn.

How does geography affect ALKINDI SPRINKLE market dynamics?

Featured snippet answer: Exclusivity, pricing regulation, and payer segmentation determine whether revenue is resilient or exposed to early substitution.

US-centric model

  • US dynamics dominate because Orange Book, PBM contracting, and FDA exclusivity govern the speed and scale of generic substitution.
  • Global expansion may differ materially because patent coverage and reimbursement systems vary.

Financial trajectory: what investors and planners should track for ALKINDI SPRINKLE

Featured snippet answer: Track net sales by prescription trend, specialty pharmacy volume, payer coverage changes, and evidence of contracting shifts as exclusivity risk approaches.

KPI set used in valuation models for niche pediatric brands

  • Net sales growth/decline rate
  • Script volume and new-to-brand prescriptions (proxy for diagnosis growth and switching)
  • Fill rate and specialty hub enrollment
  • Payer mix shifts (commercial vs Medicaid, health plan tiering)
  • Rebates and discounting trend (net-to-gross)
  • Evidence of formulary listing changes and PA criterion tightening

Key Takeaways

  • ALKINDI SPRINKLE operates in a niche CAH pediatric segment where dosing stability and caregiver usability influence retention more than pure molecular competition.
  • Net pricing and formulary access drive financial trajectory. PA and specialty pharmacy contracting can move demand quickly even with stable underlying patient counts.
  • The biggest structural revenue inflection risk comes from the timing of regulatory exclusivity and product-specific patent expiration. Generic entry can produce rapid net price erosion if payers shift coverage.
  • The competitive edge is primarily formulation practicality for pediatric dosing; erosion increases when payers find an AB-rated alternative that is operationally comparable.

FAQs

1) How do prior authorization requirements typically affect ALKINDI SPRINKLE prescription starts?
PA stringency can delay starts and reduce conversion of newly diagnosed patients, especially where lower-cost prednisolone products are easier to cover.

2) Do payer policies in Medicaid vs commercial plans change ALKINDI SPRINKLE net sales more?
Yes. Medicaid formularies and managed-care PA practices can differ materially, changing both coverage breadth and net pricing.

3) What factors determine whether a patient stays on ALKINDI SPRINKLE after an AB-rated generic launches?
Caregiver dosing practicality, PA approvals for exceptions, clinician preference, and plan incentives tied to formulary tier placement.

4) How do settlement agreements in patent cases typically influence launch timing risk?
They can create launch calendars via stipulated entry dates and carve-outs, shifting both risk and contracting expectations.

5) What operational signals indicate ALKINDI SPRINKLE is losing formulary share?
Rising denial rates, slower patient onboarding, dropping preferred tier placement, and specialty pharmacy reallocations to AB-rated alternatives.


References

  1. U.S. Food and Drug Administration. Orange Book: Approved Drug Products with Therapeutic Equivalence Evaluations. FDA.
  2. U.S. Food and Drug Administration. Labeling and FDA review documents for ALKINDI SPRINKLE (prednisolone oral granules). FDA.
  3. U.S. Food and Drug Administration. Drug Approval Reports and NDA data for ALKINDI SPRINKLE. FDA.

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