Last Updated: August 9, 2026

CLINICAL TRIALS PROFILE FOR DEFERIPRONE


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505(b)(2) Clinical Trials for deferiprone

This table shows clinical trials for potential 505(b)(2) applications. See the next table for all clinical trials
Trial Type Trial ID Title Status Sponsor Phase Start Date Summary
New Formulation NCT02442310 ↗ Comparison of Deferiprone Delayed Release Tablets and Deferiprone Oral Solution in Healthy Volunteers Completed Algorithme Pharma Inc Phase 1 2015-05-01 The purpose of this study is to look at the pharmacokinetics of a new formulation of deferiprone (deferiprone delayed release tablets) under fed and fasting conditions.
New Formulation NCT02442310 ↗ Comparison of Deferiprone Delayed Release Tablets and Deferiprone Oral Solution in Healthy Volunteers Completed ApoPharma Phase 1 2015-05-01 The purpose of this study is to look at the pharmacokinetics of a new formulation of deferiprone (deferiprone delayed release tablets) under fed and fasting conditions.
New Formulation NCT02465489 ↗ Comparison of Deferiprone Extended Release Tablets and Ferriprox Immediate Release Tablets in Healthy Volunteers Completed ApoPharma Phase 1 2015-06-01 The purpose of this study is to look at the pharmacokinetics of a new formulation of deferiprone (deferiprone extended release tablets) under fed and fasting conditions.
>Trial Type >Trial ID >Title >Status >Phase >Start Date >Summary

All Clinical Trials for deferiprone

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00000588 ↗ Chelation Therapy of Iron Overload With Pyridoxal Isonicotinoyl Hydrazone Completed National Heart, Lung, and Blood Institute (NHLBI) Phase 2 1989-06-01 To demonstrate the safety and effectiveness of orally-administered pyridoxal isonicotinoyl hydrazone (PIH) for the chronic treatment of iron overload.
NCT00000588 ↗ Chelation Therapy of Iron Overload With Pyridoxal Isonicotinoyl Hydrazone Completed Case Western Reserve University Phase 2 1989-06-01 To demonstrate the safety and effectiveness of orally-administered pyridoxal isonicotinoyl hydrazone (PIH) for the chronic treatment of iron overload.
NCT00000623 ↗ Thalassemia (Cooley's Anemia) Clinical Research Network (TCRN) Completed National Heart, Lung, and Blood Institute (NHLBI) 2000-07-01 The purpose of the TCRN is to accelerate research in the management of thalassemia, standardize existing treatments, and evaluate new ones in a network of clinical centers in North America. The emphasis will be on clinical trials that help identify optimal therapy. Therapeutic trials may involve investigational drugs, drugs already approved but not currently used, and drugs currently used.
NCT00000623 ↗ Thalassemia (Cooley's Anemia) Clinical Research Network (TCRN) Completed Thalassemia Clinical Research Network 2000-07-01 The purpose of the TCRN is to accelerate research in the management of thalassemia, standardize existing treatments, and evaluate new ones in a network of clinical centers in North America. The emphasis will be on clinical trials that help identify optimal therapy. Therapeutic trials may involve investigational drugs, drugs already approved but not currently used, and drugs currently used.
NCT00000623 ↗ Thalassemia (Cooley's Anemia) Clinical Research Network (TCRN) Completed HealthCore-NERI 2000-07-01 The purpose of the TCRN is to accelerate research in the management of thalassemia, standardize existing treatments, and evaluate new ones in a network of clinical centers in North America. The emphasis will be on clinical trials that help identify optimal therapy. Therapeutic trials may involve investigational drugs, drugs already approved but not currently used, and drugs currently used.
NCT00000623 ↗ Thalassemia (Cooley's Anemia) Clinical Research Network (TCRN) Completed New England Research Institutes 2000-07-01 The purpose of the TCRN is to accelerate research in the management of thalassemia, standardize existing treatments, and evaluate new ones in a network of clinical centers in North America. The emphasis will be on clinical trials that help identify optimal therapy. Therapeutic trials may involve investigational drugs, drugs already approved but not currently used, and drugs currently used.
NCT00103753 ↗ Combined Chelation Treatment With Deferiprone and Deferoxamine in Thalassemia Major Unknown status Apotex Inc. Phase 4 2004-05-01 Thalassemia major is a genetic disorder affecting hemoglobin synthesis, rendering individuals dependent upon lifelong blood transfusions. Consequently, iron overload occurs and patients have shortened life expectancy with the most common cause of death being heart failure. This trial tests whether the combination of traditional therapy (deferoxamine) with a newer drug (deferiprone) will prove more effective in removing cardiac iron than deferoxamine alone.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for deferiprone

Condition Name

Condition Name for deferiprone
Intervention Trials
Iron Overload 12
Beta-Thalassemia 6
Sickle Cell Disease 5
Parkinson's Disease 4
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Condition MeSH

Condition MeSH for deferiprone
Intervention Trials
Iron Overload 21
Thalassemia 20
beta-Thalassemia 19
Parkinson Disease 5
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Clinical Trial Locations for deferiprone

Trials by Country

Trials by Country for deferiprone
Location Trials
United States 40
Italy 14
Canada 12
Egypt 12
France 9
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Trials by US State

Trials by US State for deferiprone
Location Trials
Pennsylvania 7
California 7
Illinois 4
New York 4
Michigan 3
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Clinical Trial Progress for deferiprone

Clinical Trial Phase

Clinical Trial Phase for deferiprone
Clinical Trial Phase Trials
PHASE2 2
Phase 4 13
Phase 3 6
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Clinical Trial Status

Clinical Trial Status for deferiprone
Clinical Trial Phase Trials
Completed 40
Unknown status 7
Recruiting 5
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Clinical Trial Sponsors for deferiprone

Sponsor Name

Sponsor Name for deferiprone
Sponsor Trials
ApoPharma 25
University Hospital, Lille 5
Ain Shams University 3
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Sponsor Type

Sponsor Type for deferiprone
Sponsor Trials
Other 59
Industry 35
NIH 3
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Last updated: July 26, 2026

Deferiprone clinical trials update, market analysis, and revenue projection (global)

Deferiprone (3-hydroxy-1,2-dimethylpyridin-4-one; active ingredient for iron chelation in transfusion-dependent conditions) has a concentrated clinical and regulatory footprint centered on iron overload due to transfusion. Near-term clinical activity is dominated by (1) label expansion, (2) new patient subpopulations and treatment settings, and (3) long-term safety follow-through across marketed geographies. Commercial outcomes are tightly linked to beta-thalassemia and transfusion-dependent iron overload prevalence, hospital formularies, and payor restrictions, with pricing and access varying by country.

What follows is a market and projection framework anchored to trial-driven demand durability rather than broad “pipeline optimism,” plus a readiness view of where competitors can displace deferiprone.


What clinical trials are ongoing for deferiprone in 2024–2026 and what are the key endpoints?

Featured snippet answer: Current clinical activity for deferiprone concentrates on iron burden reduction and safety (especially cardiac and hepatic iron endpoints), with emphasis on long-term outcomes in transfusion-dependent populations.

Which trials matter most for future label and uptake?

Across iron-chelation development programs, the trials with the highest practical impact are typically those that:

  • Run long enough to measure sustained reduction in liver iron concentration (LIC) and/or cardiac iron (myocardial iron).
  • Use standardized chelation efficacy endpoints (MRI-based R2/R2* for cardiac iron; FerriScan-type LIC metrics).
  • Collect renal and hematologic safety data (neutropenia/agranulocytosis monitoring and management protocols).

Endpoint mix that drives payor and guideline acceptance

For deferiprone, decision-making tends to cluster around:

  • Efficacy: LIC reduction, time-to-target iron status, and durability of response under ongoing transfusion.
  • Safety: incidence of neutropenia, agranulocytosis, growth/hematologic impacts where relevant, and tolerability.
  • Convenience/adherence: dosing schedule feasibility versus alternatives (deferoxamine, deferasirox), affecting persistence.

Trial design signals investors and licensors screen for

Market-impact signals in trial disclosures include:

  • Comparative or add-on designs versus standard chelation (combination therapy scenarios).
  • Biomarker-to-outcome linkage (faster achievement of iron targets correlating with reduced morbidity).
  • Duration adequate to assess rare adverse events.

How does deferiprone compare with deferoxamine and deferasirox on efficacy, safety, and convenience?

Featured snippet answer: Deferiprone’s profile is typically positioned around oral convenience and specific efficacy patterns in cardiac iron, counterbalanced by a hematologic risk profile requiring structured monitoring.

Clinical positioning by chelation niche

  • Deferiprone (oral): Often used when cardiac iron is a concern or when oral adherence is prioritized; hematologic monitoring is central.
  • Deferasirox (oral, once-daily): Often positioned for broad convenience and extensive real-world use; renal/hepatic monitoring is central.
  • Deferoxamine (parenteral): Used where oral agents are not tolerated or as part of combination regimens; adherence burden is higher.

What payors care about

Formulary decisions usually weigh:

  • Total monitoring cost (CBC frequency and management resources for neutropenia).
  • Treatment persistence and discontinuation rates.
  • Clinical outcomes linked to iron reduction targets.

What patents protect deferiprone, and when do key exclusivity and patent rights expire?

Featured snippet answer: Deferiprone is widely marketed as a generic and branded product in multiple countries. The effective barrier is not a single “blockbuster” composition patent but a patchwork of process, formulation, and regulatory exclusivity that varies by jurisdiction and marketing authorization route.

How to think about IP risk for deferiprone

  • Composition-of-matter: largely matured or expired in most markets.
  • Process patents: can extend manufacturing freedom if they cover specific synthesis routes, purification steps, or impurity controls.
  • Formulation/process: tablets/capsules, film coatings, and scale-up methods can create practical constraints, especially if tied to regulatory dossiers.
  • Regulatory exclusivities: depend on original marketing approvals and any subsequent line extensions; these rarely have the same weight as for newer chemical entities.

Litigation-driven brand survival vs generic normalization

Because deferiprone is an established drug, the commercial competitive center of gravity typically shifts from IP litigation to:

  • Supply reliability and pricing discipline.
  • Distribution agreements.
  • Labeling access for specific subpopulations.

What is the Orange Book status of deferiprone and what does that imply for generic entry?

Featured snippet answer: Deferiprone is not typically treated as a current “single-entity” Hatch-Waxman exclusivity story; generic entry risks are generally dominated by FDA listing status, referenced product labeling, and any remaining method-of-manufacture or formulation protections tied to specific NDA/ANDA structures.

How generic entry risk is modeled in established iron chelation

Generic risk is driven by:

  • Whether the listed drug uses a unique formulation that changes dissolution or stability.
  • Whether safety monitoring instructions and REMS-like infrastructure affect adoption.
  • Whether pharmacists and physicians substitute immediately at launch windows.

Are there Paragraph IV challenges for deferiprone, and what litigation outcomes could change market share?

Featured snippet answer: Patent challenges for established deferiprone products are generally sporadic rather than systematic, and market share swings tend to follow pricing and supply cycles rather than large settlements.

What settlement terms typically do in mature chelation markets

When settlements exist, the commercial result is usually:

  • Delayed generic launch in a subset of strengths or presentations.
  • Co-existence with multiple suppliers after expiry.
  • Continued brand share in higher-structured care centers with established monitoring protocols.

What formulations are protected for deferiprone (tablets vs liquid), and which delivery forms impact demand?

Featured snippet answer: In deferiprone, the practical formulation differentiators are strength options, tablet handling characteristics, patient acceptability, and dose flexibility rather than novel delivery technologies.

Dose-form adoption and real-world persistence

Demand shifts occur when:

  • A formulation reduces dosing errors.
  • A liquid option improves adherence for pediatric or swallowing-limited patients.
  • Packaging supports dosing discipline aligned to clinical monitoring schedules.

Manufacturing/IP barriers that affect access

Even when IP is limited, barriers come from:

  • GMP batch consistency for impurity profiles.
  • Stability and shelf-life handling, especially in multi-country distribution.

How strong is the patent estate for deferiprone by jurisdiction (US, EU, UK, Canada, and key emerging markets)?

Featured snippet answer: Patent estate strength is generally low to moderate because deferiprone is an established active ingredient. Value concentrates in any remaining formulation/process patents linked to specific marketing authorizations and in manufacturing know-how.

Commercial implication

The biggest market lever is not patent duration but:

  • Contracting, tenders, and national reimbursement decisions.
  • Tender-driven pricing compression.
  • Supplier availability, especially where supply chain risk affects continuity of chelation.

What is FDA and EMA regulatory status of deferiprone, and how does it affect market access and timing?

Featured snippet answer: Deferiprone is authorized for iron chelation in transfusion-dependent settings under specific labeling. Regulatory status drives access through reimbursement alignment and prescriber comfort.

Label and safety monitoring requirements

In practice, regulatory language affects:

  • Frequency and thresholds for neutropenia monitoring.
  • Physician and pharmacy workflow integration.
  • Patient education requirements.

What matters for expansion

Where clinical activity targets additional subpopulations, the regulatory relevance depends on whether new indication(s) map onto measurable iron burden outcomes and established safety management.


Which companies sell deferiprone and how do pricing and supply dynamics drive market share?

Featured snippet answer: Market shares in deferiprone are shaped by regional reimbursement, distributor networks, and supply continuity more than by brand differentiation.

Competitive landscape pattern in mature chelation

  • Multiple ANDA-style suppliers in price-sensitive markets.
  • Brand-like share where structured monitoring and prescriber inertia favor established suppliers.
  • Tender markets where lowest net price wins after quality compliance.

Where distribution can beat IP

Even with limited patent barriers, a supplier can win via:

  • Stable allocation during shortages.
  • Contract terms with hospitals and national programs.
  • Fast substitution readiness for pharmacies.

Revenue projection for deferiprone (global): base case, growth drivers, and downside factors

Featured snippet answer: For a mature, largely genericized chelation product, global revenue trajectory is driven by population-level demand stability (transfusion-dependent iron overload), reimbursement structures, and pricing declines from increased supply, with modest growth possible where access expands faster than price compresses.

Market drivers

  • Persistent incidence pool: Transfusion-dependent iron overload conditions remain a long-duration market segment.
  • Adherence to oral therapy: Deferiprone’s oral mode supports maintenance therapy and outpatient administration.
  • Combination therapy relevance: In practice, combination regimens can sustain utilization even when monotherapy share is pressured.

Primary downside risks

  • Pricing compression: Generic competition lowers average selling price across tender and reimbursement systems.
  • Safety management burden: Monitoring costs and adverse-event avoidance can limit uptake relative to simpler monitoring regimens.
  • Formulary substitution: In systems where deferasirox or other alternatives are favored, deferiprone utilization can shift.

Projection methodology (actionable framework)

A practical projection for deferiprone uses:

  1. Unit demand tied to transfusion-dependent patient counts and chelation adherence rates.
  2. Net price modeled by tender cycles and country mix shifts (higher reimbursement geographies vs price-sensitive regions).
  3. Channel mix shifts (hospital tender vs outpatient).
  4. Share drift based on safety perception and institutional protocols.

Global outlook (directional)

  • Base case: Slight to moderate global revenue stability to low single-digit growth, with the mix determining whether growth offsets price erosion.
  • Bull case: Access expansion in additional geographies, improved adherence through formulation availability, and stable tender pricing.
  • Bear case: Accelerated price compression from additional suppliers and substitution toward alternative chelators where monitoring burden matters.

Table: Revenue projection structure (not point estimates)

Scenario Unit demand trend Net price trend Mix impact Net revenue direction
Base Flat to +2%/yr -2% to -5%/yr Neutral Flat to low growth
Bull +2% to +4%/yr -1% to -3%/yr Positive (higher reimbursement mix) Low to mid single-digit growth
Bear -1% to +1%/yr -4% to -7%/yr Negative (more tender-driven mix) Decline or near flat

What generic launch risks exist for deferiprone and how should brand or distributor planning adjust?

Featured snippet answer: Launch risk is primarily operational (availability and dosing form consistency) and pricing-driven rather than driven by a long exclusivity wall.

Launch readiness checklist used by commercial teams

  • Supply chain capacity to cover tender cycles.
  • Batch release and impurity consistency.
  • Documentation matching existing label monitoring workflows.
  • Substitution strategy aligned with hospital formularies.

Where market share is hardest to defend

  • Tender markets with aggressive procurement cycles.
  • Systems where alternative chelators with less intensive monitoring are preferred.

Key Takeaways

  • Deferiprone’s clinical development focus is on durable iron reduction and long-term safety under structured hematologic monitoring.
  • Commercial value in deferiprone is dominated by reimbursement and pricing dynamics rather than active patent runway.
  • Revenue outlook is likely to be range-bound: flat to low growth in a base case due to price compression offset by stable demand and access.
  • Competitive displacement risk mainly comes from alternative oral chelators and substitution in formulary/tender settings.
  • Strategy for stakeholders should prioritize supply continuity, dosing form availability, and institutional monitoring alignment over IP-centric narratives.

FAQs

  1. What dosing and monitoring protocols are most associated with deferiprone persistence in real-world practice?
  2. How do combination therapy regimens that include deferiprone affect utilization versus monotherapy?
  3. Which patient subgroups show the strongest clinical rationale for deferiprone selection over deferasirox?
  4. How do tender cycles in Europe and emerging markets typically change net pricing for mature iron chelators like deferiprone?
  5. What supply or quality issues most frequently disrupt continuity of deferiprone treatment programs?

References (APA)

  1. U.S. Food and Drug Administration. (n.d.). Drugs@FDA: Deferiprone-related approvals and labeling. FDA.
  2. European Medicines Agency. (n.d.). EMA product information for deferiprone-containing medicines. EMA.
  3. ClinicalTrials.gov. (n.d.). Deferiprone (3-hydroxy-1,2-dimethylpyridin-4-one) clinical studies. U.S. National Library of Medicine.

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