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Platelet Aggregation Inhibition in Children on Clopidogrel (PICOLO)

Dose-Ranging Pharmacodynamic Assessment of Platelet Aggregation Inhibition With Clopidogrel in Children of Blalock-Taussig Shunt Age Categories (Neonates and Infants/Toddlers)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00115375
Enrollment
92
Registered
2005-06-22
Start date
2004-01-31
Completion date
2006-04-30
Last updated
2009-03-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Blood Platelet Disorders, Congenital Heart Defects

Keywords

THROMBOSIS, PLATELET AGGREGATION, Pediatrics

Brief summary

PICOLO is a double blind placebo controlled phase II dose ranging, dose escalating study in patients of Blalock-Taussig age categories (neonates and infants/toddlers), to determine the dose providing inhibition of platelet aggregation similar to adults.

Detailed description

There will be 3 blinded dose groups of 12 patients each (9 active, 3 placebo), central randomization, stratified by age (\< 1 month ;1 to 24 months). There will be a comparison of ADP-induced platelet aggregation at steady state.

Interventions

Sponsors

Bristol-Myers Squibb
CollaboratorINDUSTRY
Sanofi
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE

Eligibility

Sex/Gender
ALL
Age
No minimum to 24 Months
Healthy volunteers
No

Inclusion criteria

* Neonates or infants/toddlers (up to 24 months) at risk for thrombosis (e.g., Blalock-Taussig shunt or any systemic to pulmonary artery shunt, Kawasaki disease, vascular stent or any condition requiring antiplatelet therapy).

Exclusion criteria

* Ongoing bleeding or increased risk of bleeding * Weight \< 2 kg; gestational age \< 35 weeks * Allergy to drugs * Current or planned anticoagulant treatment * Unable to receive drug enterically * Platelet transfusion \< 7days * Thrombocytopenia * Hepatic or renal failure

Design outcomes

Primary

MeasureTime frame
Percent inhibition of maximum extent and rate of aggregation of 5 µM ADP-induced platelet aggregation

Secondary

MeasureTime frame
Adverse events

Countries

Belgium, Canada, France, Germany, Italy, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026