Becton Dickinson and Company Limited

Other

Vyteris, Inc.

Becton Dickinson Research Center

Carl Randolph Bock

Burton H Sage

Philip G Green

Munir A Hussain

Arnold J Repta

Burton H Sage, Jr

A device includes a plurality of microneedles for abrading the stratum corneum of the skin to form a plurality of grooves in the tissue having a controlled depth and width. The microneedles have a length of about 5-250 microns and generally about 5-200 microns. The device is rubbed over the skin to prepare an abraded site after which a transdermal delivery or sampling device is applied to the abraded delivery site. The abrasion increases the permeability of the skin and the rate of delivery and extraction of a substance without pain or irritation to the patient.

Method and device for abrading skin

The present invention relates to a non-invasive method and apparatus for pre selecting the drug delivery profile of a drug by controlling the concentration of ions added to or present in the reservoir containing the drug to be delivered, which ions would compete with the drug ions for the current.

Selected drug delivery profiles using competing ions

This invention relates to novel methods and devices for iontophoretically administering therapeutic doses of cell adhesion receptor antagonists in a controlled manner through the skin. Such antagonist compounds include but are not limited to antagonists of the IIb/IIIa and .alpha..sub.v .beta..sub.3 integrins and related cell surface adhesive protein receptors. The present invention includes iontophoretic delivery devices comprising cell adhesion receptor antagonists. Such methods and devices are useful, alone or in combination with other therapeutic agents, for the treatment of thromboembolic disorders, angiogenic disorders, inflammation, bone degradation, cancer metastasis, diabetic retinopathy, restenosis, macular degeneration, and other conditions mediated by cell adhesion and/or cell migration and/or angiogenesis.

Iontophoretic delivery of cell adhesion inhibitors

This invention relates to novel methods and devices for iontophoretically administering therapeutic doses of cell adhesion receptor antagonists in a controlled manner through the skin. Such antagonist compounds include but are not limited to antagonists of the IIb/IIIa and .alpha..sub.v .beta..sub.3 inter and related cell surface adhesive protein receptors. The present invention includes iontophoretic delivery devices comprising cell adhesion receptor antagonists. Such methods and devices are useful, alone or in combination with other therapeutic agents, for the treatment of thromboembolic disorders, angiogenic disorders, inflammation, bone degradation, cancer metastasis, diabetic retinopathy, restenosis, macular degeneration, and other conditions mediated by cell adhesion and/or cell migration and/or angiogenesis.

The present invention provides an iontophoretic drug delivery device having electrode renewing features includes a housing having a first electrode, a second electrode, a circuit for providing electrical communication between the first and second electrodes. The circuit is capable of engaging a source of current. Control means is provided for effecting the amount of current passing between the electrodes. A removable electrolyte reservoir is capable of holding electrolyte and removably engaging the housing so that one of the electrodes can contact electrolyte contained within the reservoir. A removable active agent reservoir is capable of holding an active agent for iontophoretic delivery. The active agent reservoir is capable of removably engaging the housing so that the active agent contacts one of the electrodes. The present invention also provides a method for renewing electrodes during delivery of an active agent from an iontophoretic system which comprises at least two electrodes and means for containing an active agent, which method comprises:

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Durham, NC, United States of America

Carl Randolph Bock