NeuroDerm Ltd. has announced that continuous, subcutaneous delivery of the company’s proprietary liquid levodopa/carbidopa (LD/CD) product candidates, ND0612H and ND0612L, led to clinically-significant plasma levodopa levels. These results suggest that the high dose version, ND0612H, intended for severe Parkinson’s disease patients, may provide an effective therapy alternative to current treatments requiring surgery.
Due to the short half-life of oral levodopa, patients are required to take multiple LD/CD doses daily. This results in sharp fluctuations in levodopa levels which are associated with erratic “off” and “on” periods experienced by many patients. Continuous LD administration can overcome this limitation, but steady LD delivery can currently only be achieved after undergoing an invasive surgical procedure whereby a tube is permanently implanted into the duodenum, the upper part of the small intestine.
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