Relative Oral Bioavailability of Telmisartan / Hydrochlorothiazide (HCTZ) Fixed Dose Combination (FDC) Compared With Its Monocomponents in Healthy Subjects

Relative Oral Bioavailability of 40 mg Telmisartan / 12.5 mg HCTZ Fixed Dose Combination Compared With Its Monocomponents in Healthy Subjects. A 4 Period Cross-over, Open, Randomized, Replicate Design Study

A study to demonstrate the bioequivalence of telmisartan and HCTZ administered as fixed dose combination in comparison to the single unit formulations

Inclusion Criteria:

• Healthy subjects as determined by results of screening
• Signed written informed consent in accordance with good clinical practice (GCP) and local legislation
• Age ≥ 18 and ≤ 55 years
• Broca ≥ -20 % and ≤ +20 %

Exclusion Criteria:

• Any findings of the medical examination (including blood pressure, pulse rate and electrocardiogram (ECG)) deviating from normal and of clinical relevance
• Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders
• Surgery of the gastro-intestinal tract (except appendectomy)
• Diseases of the central nervous system (such as epilepsy) or psychiatric disorders or neurological disorders
• Supine blood pressure at screening of systolic ≤ 110 mmHg and diastolic ≤ 60 mmHg
• History of orthostatic hypotension, fainting, spells or blackouts
• Chronic or relevant acute infection
• History or allergy/hypersensitivity (including drug allergy) which is deemed relevant to the trial as judged by the investigator
• Intake of drugs with a long half-life (> 24 hours) ≤ 1 month prior to administration or during the trial
• Use of any drugs which might influence the results of the trial (≤ 10 days prior to administration or during the trial)
• Participation in another trial with an investigational drug (≤ 2 months prior to administration or during the trial)
• Smoker (> 10 cigarettes or > 3 cigars or > 3 pipes/day)
• Inability to refrain from smoking on study days
• Alcohol abuse (> 60g/day)
• Drug abuse
• Blood donation (≤ 1 month prior to administration or during the trial)
• Excessive physical activities (≤ 5 days prior to administration or during the trial)
• Any laboratory value outside the reference range of clinical relevance
• Hypersensitivity to Telmisartan and/or HCTZ and/or related classes of drugs

For female subjects:

• Pregnancy
• Positive pregnancy test
• No adequate contraception (e.g. sterilization, intrauterine device (IUD), oral contraceptives)
• Inability to maintain this adequate contraception during the whole study period
• Lactation period