Last Updated: May 3, 2026

CLINICAL TRIALS PROFILE FOR PARCOPA


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All Clinical Trials for PARCOPA

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00139867 ↗ A Multicenter, Open-label Trial to Assess Subject Preference of PARCOPA, Carbidopa/Levodopa Orally Disintegrating Tablets, Compared to Conventional Carbidopa/Levodopa Tablets in Subjects With Stable Parkinson's Disease Completed UCB Pharma Phase 3 2004-01-01 The objective of this trial was to assess subject preference for PARCOPA, carbidopa/levodopa Orally Disintegrating Tablets (ODT), compared with conventional carbidopa/levodopa tablets, in subjects with stable Parkinson's disease.
NCT00139880 ↗ A Single Center, Randomized, Double-blind, Crossover Pilot Trial Comparing the Onset of Action of Parcopa™ With Sinemet® in Subjects With Stable Parkinson's Disease Completed UCB Pharma Phase 3 2005-06-01 To test whether Parcopa, a new Orally Disintegrating Tablet of Carbidopa-Levodopa, has a faster onset of action, changes in the UPDRS Motor Exam score at intervals after a single dose of Parcopa or Sinemet are being compared in 10 subjects with Parkinson's disease. Subjects 40 years or older having idiopathic PD with Hoehn and Yahr state II or III are eligible if taking a stable dose of < 200 mg carbidopa and < 2000 mg levodopa daily. At both treatment visits, either Parcopa or Sinemet, plus a placebo of the opposite tablet (ODT or conventional) are administered. The dose is the same as the subject's prestudy regimen. The primary efficacy variable, time to onset of action, is the first postdose time when a 30% decrease (30% improvement) in the total score is achieved. All UPDRS evaluations are done by a rater blinded to the active treatment received by the subject.
NCT00590122 ↗ Parcopa Versus Carbidopa-Levodopa in a Single Dose Cross-Over Comparison Study Completed UCB Pharma Phase 4 2006-10-01 To find out if a single dose of Parcopa®, a form of levodopa that dissolves in your mouth, works faster than regular oral levodopa which is swallowed, in fluctuating PD patients.
NCT00590122 ↗ Parcopa Versus Carbidopa-Levodopa in a Single Dose Cross-Over Comparison Study Completed Baylor College of Medicine Phase 4 2006-10-01 To find out if a single dose of Parcopa®, a form of levodopa that dissolves in your mouth, works faster than regular oral levodopa which is swallowed, in fluctuating PD patients.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for PARCOPA

Condition Name

Condition Name for PARCOPA
Intervention Trials
Parkinson's Disease 3
Oculocutaneous Albinism 1
Toe Fusion 1
Acute Pain 1
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Condition MeSH

Condition MeSH for PARCOPA
Intervention Trials
Parkinson Disease 3
Albinism 1
Pain, Postoperative 1
Acute Pain 1
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Clinical Trial Locations for PARCOPA

Trials by Country

Trials by Country for PARCOPA
Location Trials
United States 6
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Trials by US State

Trials by US State for PARCOPA
Location Trials
Wisconsin 3
Illinois 1
Virginia 1
Texas 1
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Clinical Trial Progress for PARCOPA

Clinical Trial Phase

Clinical Trial Phase for PARCOPA
Clinical Trial Phase Trials
Phase 4 1
Phase 3 2
Phase 2 3
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Clinical Trial Status

Clinical Trial Status for PARCOPA
Clinical Trial Phase Trials
Completed 4
Terminated 1
Not yet recruiting 1
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Clinical Trial Sponsors for PARCOPA

Sponsor Name

Sponsor Name for PARCOPA
Sponsor Trials
UCB Pharma 3
Baylor College of Medicine 1
University of Wisconsin, Madison 1
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Sponsor Type

Sponsor Type for PARCOPA
Sponsor Trials
Other 5
Industry 3
NIH 2
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PARCOPA Market Analysis and Financial Projection

Last updated: April 28, 2026

Parcopa Clinical Trials Update, Market Analysis, and Projection

What is Parcopa and who makes it?

Parcopa is a brand of carbidopa/levodopa orally disintegrating tablets (ODT) for Parkinson’s disease. The formulation is designed to dissolve in the mouth, delivering levodopa for symptom control with carbidopa to improve levodopa pharmacokinetics and reduce peripheral metabolism.

Regulatory/brand structure (high level):

  • Active ingredients: carbidopa + levodopa
  • Dosage form: orally disintegrating tablet (ODT)
  • Indication: Parkinson’s disease (symptomatic treatment)

What clinical trial signals exist for Parcopa?

No current, material new Parcopa-specific clinical trial programs are identifiable from the publicly indexed record at the same level as new molecular entities. For an ODT branded formulation, the clinical evidence base typically relies on:

  • Bioequivalence / pharmacokinetic bridging versus established carbidopa/levodopa presentations (immediate-release tablets and controlled-release forms)
  • Symptom control endpoints that are not unique to the ODT format, with dosing schedules reflecting standard levodopa regimens

Operationally, this means investors and R&D teams should treat Parcopa as a formulation-and-market execution story, not a pipeline story, unless new equivalence studies, line extensions (strength changes), or localized regulatory submissions are filed under the brand.

How do Parkinson’s drug economics drive Parcopa’s market?

Parcopa competes in a crowded Parkinson’s symptomatic space where payers and prescribers balance:

  • Formulation preference (swallowing difficulty, adherence, dosing convenience)
  • Tablet switching behavior (patients move among levodopa/carbidopa formats based on tolerability, timing of effect, and caregiver workload)
  • Generic penetration for carbidopa/levodopa IR and many ODT alternatives, often compressing branded share unless Parcopa retains defensible positioning

Core market dynamics:

  1. Symptom control remains the primary purchase driver, not disease modification. That keeps the addressable market large but value per patient under pressure.
  2. Near-term demand tracks prevalent Parkinson’s population and aging demographics, with growth moderated by mortality, comorbidities, and treatment switching.
  3. Formulation-specific differentiation matters most in:
    • late-stage Parkinson’s where swallowing becomes difficult
    • patients with adherence issues
    • settings where rapid administration without water improves day-to-day usability

What is the competitive landscape for Parcopa?

Parcopa sits against:

  • Generic and branded immediate-release carbidopa/levodopa tablets
  • Carbidopa/levodopa controlled-release regimens (different dosing and wearing-off profiles)
  • Other “levodopa-based” oral delivery systems including dispersible or ODT formats in some markets
  • Non-levodopa add-ons (COMT inhibitors, MAO-B inhibitors), which payers often evaluate as stepwise therapy

Because Parkinson’s care uses long treatment durations and frequent regimen changes, switching costs are low. That makes brand share dependent on:

  • tolerability perceptions
  • reimbursement and formulary status
  • availability at initiation and during escalation

What is the market outlook and projection for Parcopa (scenario framework)?

Given Parcopa’s nature as a carbidopa/levodopa formulation rather than a disease-modifying therapy, projections should be framed around share retention vs. generic substitution and patient preference for ODT.

Projection logic that typically governs branded ODT performance:

  • Baseline market growth: increases with Parkinson’s prevalence and treatment rates.
  • Share pressure: increases with generic penetration and price competition.
  • Resilience factor: rises with ODT-specific adoption (patients who cannot reliably swallow standard tablets, caregiver convenience).

Base case projection

  • Parcopa revenue is expected to track Parkinson’s symptomatic market growth modestly while experiencing ongoing share compression where generics are accessible and formularies are cost-driven.
  • Net effect: low-to-mid single-digit growth in absolute revenue in markets where Parcopa is reimbursed with limited substitution, but flat-to-declining revenue in markets with strong generic switching and aggressive tendering.

Upside case projection

  • Revenue outperforms the base case if:
    • ODT adoption expands through formulary updates targeting swallowing impairment populations
    • competitive supply constraints or pricing actions reduce generic substitution
    • line extensions (strength or pack size) improve prescriber workflow

Upside typically yields mid single-digit growth rather than a step-change.

Downside case projection

  • Revenue underperforms if:
    • formulary tiers shift Parcopa into non-preferred positions
    • generic ODT or equivalent dispersible offerings expand
    • price erosion accelerates due to procurement leverage

Downside typically produces negative low-to-mid single-digit revenue change with volume decline driven by formulary switching.

What clinical development path is realistically available for Parcopa?

For an established symptomatic therapy brand, the usual “next” steps are regulatory and lifecycle rather than novel clinical proof:

  • Bioequivalence submissions for strength variations and manufacturing changes
  • Compatibility with treatment guidelines through labeling maintenance
  • Market access activities (payer evidence packages, adherence and administration-use cases)

The practical implication is that Parcopa’s growth levers align with market access and patient preference more than with new clinical endpoints.

Key commercial KPI set to monitor (to validate projections)

For investment and commercial planning, the most decision-useful KPIs for Parcopa are:

1) Market access

  • formulary placement by geography
  • prior authorization and step therapy prevalence
  • patient out-of-pocket burden trends

2) Prescription behavior

  • share vs generic carbidopa/levodopa IR
  • share vs other ODT/dispersible options
  • switching rates among levodopa/carbidopa formulations

3) Supply and pricing

  • average net price changes versus list price inflation
  • wholesaler and pharmacy fill rates

4) Segment penetration

  • uptake in patients with documented dysphagia or swallowing impairment
  • uptake in elderly and caregiver-supported populations

Market projection table (directional, decision-useful)

The table below is structured to support planning under the typical market forces for levodopa/carbidopa ODT brands.

Scenario Revenue trend vs prior year Volume trend Price trend (net) Key driver
Base case Low-to-mid single digit growth (reimbursed markets) / flat in highly competitive markets Stable to slight decline Mild erosion Modest population growth offset by generic switching
Upside Mid single digit growth Stable to slight increase Less erosion than peers ODT-specific adoption and formulary retention
Downside Negative low-to-mid single digit Decline Faster erosion Loss of preferred status and substitution to generics/alternatives

Why Parcopa forecasts should focus on treatment convenience rather than efficacy breakthroughs

Because Parcopa’s therapy class is symptomatic, its differentiation is primarily:

  • administration convenience (ODT use)
  • tolerability tied to levodopa/carbidopa pharmacology
  • adherence impact due to ease of dosing

In payer and prescriber decision-making, this maps to real-world workflow value (less reliance on water, easier caregiver administration) and reductions in missed doses, not novel comparative clinical outcomes.


Key Takeaways

  • Parcopa is an established carbidopa/levodopa ODT brand for Parkinson’s symptomatic treatment; its differentiation is mainly formulation convenience.
  • Parcopa-specific new clinical trials do not present as a material pipeline driver in the publicly indexed record; growth is expected to depend on market access and substitution dynamics rather than new efficacy breakthroughs.
  • Market projections should be built around share retention vs generic erosion, with ODT adoption supporting upside.
  • Use KPI monitoring tied to formulary placement, switching rates, net price, and segment penetration to validate or revise forecasts.

FAQs

1) Is Parcopa a disease-modifying therapy?

No. Parcopa is used for symptomatic treatment of Parkinson’s disease.

2) What is Parcopa’s differentiation versus standard carbidopa/levodopa tablets?

The key differentiation is the orally disintegrating tablet format, aimed at improving administration convenience and adherence.

3) What most threatens Parcopa sales?

Generic substitution and unfavorable formulary placement that increase switching to lower-cost carbidopa/levodopa products.

4) What most supports Parcopa sales?

Reimbursement retention and prescriber/patient preference for ODT dosing in populations where swallowing standard tablets is difficult.

5) What metrics best track Parcopa’s near-term trajectory?

Formulary status, prescription share versus generics and other formulations, average net price, and switching rates across levodopa/carbidopa product classes.


References

[1] FDA. “Label Information for Parcopa (carbidopa and levodopa).” U.S. Food and Drug Administration.
[2] EMA. Public assessment and product information related to carbidopa/levodopa orally disintegrating tablet products in the EU. European Medicines Agency.
[3] ClinicalTrials.gov. Search results for “Parcopa” (carbidopa levodopa orally disintegrating tablet). U.S. National Library of Medicine.
[4] World Health Organization. Parkinson’s disease fact sheets and epidemiology references. World Health Organization.

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