Ibuprofen Bioavailability Trial With Oral Single Dose Administration.

The clinical trial will be performed in a single centre, open-label, randomised (order of treatments), balanced, 3-period, 6-sequence, single dose change-over design with administration under fasting conditions separated by a washout period of at least 2 treatment-free days.

Blood sample collection will be performed over 16 h after administration. This time is considered adequate to characterise plasma concentration vs. time profiles long enough for reliable estimation of the extent of absorption, i.e. the AUC derived from measurements is expected to cover at least 80 % of the AUC extrapolated to infinity.

Inclusion criteria

• sex: male/female
• ethnic origin: Caucasian
• age: 18 years or older
• body-mass index (BMI): ≥ 18.5 kg/m² and ≤ 30.0 kg/m², body weight > 40 kg
• good state of health
• non-smoker or ex-smoker for at least 3 months
• written informed consent, after having been informed about benefits and potential risks of the clinical trial, as well as details of the insurance taken out to cover the subjects participating in the clinical trial

Exclusion criteria

• existing cardiac and/or haematological diseases or pathological findings, which might interfere with the safety or tolerability of the active ingredient
• existing hepatic and/or renal diseases or pathological findings, which might interfere with the safety or tolerability, and/or pharmacokinetics of the active ingredient
• existing gastrointestinal diseases or pathological findings, which might interfere with the safety, tolerability, absorption and/or pharmacokinetics of the active ingredient
• history of gastrointestinal bleeding or perforation, related to previous NSAID therapy
• existing, or history of, recurrent gastrointestinal ulcer/ bleeding
• conditions involving an increased tendency to bleeding
• active or known inflammatory bowel diseases (e.g. colitis ulcerosa, Crohn´s disease)
• history of relevant CNS and/or psychiatric disorders and/or currently treated CNS and/or psychiatric disorders
• known allergic reactions to the active ingredients used or to constituents of the pharmaceutical preparations
• history of hypersensitivity reactions (e.g. bronchial spasm, asthma, rhinitis, urticaria, or angioedema) after intake of acetylsalicylic acid or other NSAIDs
• subjects with severe allergies or multiple drug allergies unless it is judged as not relevant for the clinical trial by the investigator
• existing, or history of, bronchial asthma, chronic rhinitis or allergic diseases unless it is judged as not relevant for the clinical trial by the investigator
• subjects with hereditary problems of galactose intolerance, lactase deficiency or glucose-galactose malabsorption
• systolic blood pressure < 90 or > 145 mmHg
• diastolic blood pressure < 60 or >90 mmHg
• heart rate < 50 bpm or > 90 bpm
• laboratory values out of normal range unless the deviation from normal is judged as not relevant for the clinical trial by the investigator except parameters ASAT, ALAT, bilirubin and creatinine (see exclusion criterion No. 18)
• laboratory values: ASAT > 20 % ULN, ALAT > 10 % ULN, bilirubin > 20 % ULN and creatinine > 9 μmol/l ULN
• positive anti-HIV-test (if positive to be verified by western blot), HBs-AG-test (if positive to be verified by test for HBc-IgM) or anti-HCVtest
• acute or chronic diseases which may interfere with the pharmacokinetics of the IMP
• history of or current drug or alcohol dependence
• positive alcohol or drug test at screening examination
• regular intake of alcoholic food or beverages of ≥ 40 g pure ethanol for male or ≥ 20 g pure ethanol for female per day
• subjects who are on a diet which could affect the pharmacokinetics of the active ingredient
• regular intake of caffeine containing food or beverages of ≥ 500 mg caffeine per day
• blood donation or other blood loss of more than 400 ml within the last 2 months prior to individual enrolment of the subject
• administration of any investigational medicinal product during the last 2 months prior to individual enrolment of the subject
• regular treatment with any systemically available medication (except hormonal contraceptives)
• subjects, who report a frequent occurrence of migraine attacks
• positive pregnancy test at screening examination
• pregnant or lactating women
• female subjects who do not agree to apply highly effective contraceptive methods
• subjects suspected or known not to follow instructions
• subjects who are unable to understand the written and verbal instructions, in particular regarding the risks and inconveniences they will be exposed to during their participation in the clinical trial.