Millennium Clinical Trials, L.L.C. We are an experienced clinical research center within a large internal medicine practice which conducts phase II and phase III studies in a variety of therapeutic areas. These areas include hypertension, hyperlipidemia, birth control asthma, acne, genital herpes, allergic rhinitis, diabetes, chronic pain, sinusitis and many others. We specialize in large trials and have met or exceed in enrollment in 95% of studies conducted.