ACCESS PHARMACEUTICALS, INC.provided an update today on its Cobalamin(TM) oral drug delivery product development programs. The proprietary Cobalamin(TM) technology utilizes the body’s natural vitamin B12 oral uptake mechanism to facilitate oral absorption of pharmaceuticals by a “Trojan horse” mechanism.
Access has focused its Cobalamin product development program on the oral delivery of insulin and human growth hormone, two peptides which currently can only be given by injection. A new Cobalamin-coated insulin-containing nanoparticle formulation delivered orally provided a pharmacological response (lowering of blood glucose levels in an animal model of diabetes) greater than 80% of that achieved by insulin delivered subcutaneously. This represents a substantial oral bioavailability, indicating that this formulation has potential for clinical development and ultimate commercialization.
Adaptation of this technology has provided a Cobalamin human growth hormone formulation that has demonstrated good efficacy, represented by more than 25% improvement in weight gain, when given orally in an established animal model. Access continues to move both products towards clinical development, and plans to submit an additional patent application to protect the improvements to the technology.