Bioequivalence
Conditions
Brief summary
Prospective, Randomized, Crossover, Bioequivalence study
Detailed description
Active-control crossover study randomizing 32 healthy volunteers to receive one of two dose levels, 325 mg or 650 mg, of either PL-ASA or immediate release aspirin within a two week washout period between treatments. The primary objectives are to assess PK and PD bioequivalence and safety over a twenty four hour period for PL-ASA and immediate release aspirin at 325 mg and 650 mg dose strengths.
Interventions
Aspirin - lipid complex
Sponsors
Study design
Intervention model description
32 subjects to be randomized to treatment with either immediate release aspirin or PL-ASA at one of two doses (325 mg or 650 mg) administered orally. After completion of the first treatment and a minimum of a two week washout period(14-17 days) subjects are to cross over and receive treatment with the alternative compound at the same dose level.
Eligibility
Inclusion criteria
* If female and of childbearing potential, subject has a negative pregnancy test and is not nursing. * If female and of childbearing potential, subject is using adequate birth control for the duration of the study. * Subject is able to understand and comply with study procedures. * Subject is a non-smoker. * Subject consumes no more than 1 alcoholic drink per day. * Subject agrees to refrain from alcohol consumption for 48 hours prior to each drug administration and 48 hours after each drug administration. * Subject is able and willing to provide written informed consent prior to any study procedures being performed.
Exclusion criteria
* Subject has abnormal screening/baseline laboratory parameters deemed to be clinically significant by the Investigator. * Subject has taken any prescription medications other than hormone replacement therapy or thyroid replacement hormones within 3 days prior to drug administration. * Subject has taken any of the following medications within 2 weeks prior to study entry: * NSAIDs or other medications for pain, including aspirin or aspirin containing products and acetaminophen (see Appendix B of protocol in Appendix 16.1.1) * Proton pump inhibitors, including Prilosec®, Prevacid®, Aciphex®, Protonix®, or Nexium® * H-2 blockers, including Tagamet®, Zantac®, Axid®, or Pepcid® * Any antiplatelet agent, including Plavix®, Ticlid®, Pletal®, ReoPro®, Integrilin®, Aggrastat®, or Persantine® * Any anti-coagulant, including Coumadin®, Acenocoumarol, Phenprocoumon, Phenindione, Heparin, Exanta®, Argatroban, Lepirudin, Hirudin or Bivalirudin * Subject has used an investigational agent within the past 30 days. * Subject has hypersensitivity or contraindications to aspirin, ibuprofen, or other NSAID. * Subject has sensitivity to lecithin. * Subject has a history of gastrointestinal problems including ulcers, frequent indigestion, or heartburn. * Subject has a history of stroke, myocardial infarction, or congestive heart failure. * Subject has a history of asthma, other bronchospastic activity, nasal polyps, or angioedema other than resolved childhood asthma. * Subject has a history of kidney or liver disease. * Subject has a history of thrombocytopenia, neutropenia, or bleeding disorder. * Subject has a history of coronary arterial bypass. * Subject has a history of non-trauma related hemorrhage. * Subject has a history of chronic hypertension. * Subject is currently enrolled in another investigational trial. * Subject's platelets are unresponsive to arachidonic acid
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Bioequivalence of PL-ASA and Immediate Release Aspirin AUC0-T | twenty four hours | Assess for bioequivalence at 325 mg and 650 mg dose levels AUC0-T of the metabolite salicylic acid |
| Bioequivalence of PL-ASA and Immediate Release Aspirin AUC0-∞ | 24 hours | Assess for bioequivalence at 325 mg and 650 mg dose levels AUC0-∞ of the metabolite salicylic acid |
| Bioequivalence of PL-ASA and Immediate Release Aspirin CMAX | 24 hours | Assess for bioequivalence at 325 mg and 650 mg dose levels CMAX of the metabolite salicylic acid |
| Bioequivalence of PL-ASA and Immediate Release Aspirin TMAX | 24 hours | Assess for bioequivalence at 325 mg and 650 mg dose levels TMAX of the metabolite salicylic acid |
| Bioequivalence of PL-ASA and Immediate Release Aspirin AUC0-24 | 24 hours | Assess for bioequivalence at 325 mg and 650 mg dose levels AUC0-24 of the percent inhibition of serum Thromboxane B2 |
| Bioequivalence of PL-ASA and Immediate Release Aspirin TMAX STB2 | 24 hours | Assess for bioequivalence at 325 mg and 650 mg dose levels TMAX of the percent inhibition of serum Thromboxane B2 |