Study to Investigate the Effect of KUC 7483 CL on the QT/QTc Interval of the ECG in Comparison to Placebo and Moxifloxacin in Healthy Male and Female Volunteers

Inclusion Criteria: * Healthy males or females * Age 30 to 60 years * Body mass index (BMI) within 18.5 to 29.9 kg/m2 * In accordance with Good Clinical Practice (GCP) and the local legislation all volunteers are to have given their written informed consent prior to admission to the study Exclusion Criteria: * Any finding of the medical examination (including blood pressure, pulse rate and ECG) deviating from normal and of clinical relevance * Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders, clinically relevant electrolyte disturbances * Diseases of the central nervous system (such as epilepsy) or psychiatric disorders or neurological disorders * History of orthostatic hypotension, fainting spells or blackouts * Chronic or clinically relevant acute infections * History of 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 (\> 24:00 hours) within at least one month or less than ten half-lives of the respective drug before enrolment in the study or during the study * Use of any drugs which might influence the results of the trial up to 7 days prior to enrolment in the study or during the study * Participation in another trial with an investigational drug (within two months prior to administration or during the trial) * Smoker (\> 10 cigarettes or \> 3 cigars of \> 3 pipes/day) * Inability to refrain from smoking on trial days * Drug abuse * Blood donation (\> 100 mL within four weeks prior to administration or during the trial) * Any laboratory value outside the reference range if indicative of underlying disease or poor health * Excessive physical activities within the last week before the trial or during the trial * Hypersensitivity to treatment medication, moxifloxacin and/or related drugs of these classes * Previous tendon disease related to quinolone treatment * Congenital or documented acquired QT- prolongation, previous history of symptomatic arrhythmias * Heart rate at screening of \> 80 bpm or \< 45 bpm * Any screening ECG value outside of the reference range of clinical relevance including, but not limited to Pulse rate (PR) interval \> 220 ms, QRS interval \> 115 ms, QTcB \> 450 ms, or QT (uncorrected) \> 470 ms For Female Subjects: * Pregnancy * Positive pregnancy test * No adequate contraception (adequate contraception e.g. sterilization, Intrauterine pessary (IUP), oral contraceptives) * Inability to maintain this adequate contraception during the whole study period * Lactation period