Clinical Drug Investigation provides rapid publication of original research covering all phases of clinical drug development and therapeutic use of drugs. The Journal includes: Clinical trials, outcomes research, clinical pharmacoeconomic studies and pharmacoepidemiology studies with a strong link to optimum prescribing practice for a drug or group of drugs. Clinical pharmacodynamic and clinical pharmacokinetic studies with a strong link to clinical practice. Pharmacodynamic and pharmacokinetic studies in healthy volunteers in which significant implications for clinical prescribing are discussed. Studies focusing on the application of drug delivery technology in healthcare. Short communications and case study reports that meet the above criteria will also be considered.