Device and method for drug evaluation and local treatment
First Claim
1. A microarray device comprising:
- an elongated support structure configured for administration within a needle, laparoscope, endoscope, arthroscope, or catheter,arrays along the length of the elongated support structure of multiple separate chambers being formed within the support structure, each chamber having a closed proximal end on the interior of the support structure and an open distal end on the outside of the support structure,each chamber comprising a solid matrix forming a reservoir containing microdoses of one or more therapeutic or diagnostic agents in the matrix, which are released into the open distal end only over a period between about one day and one week following insertion of the microarray device into tissue,wherein the open distal end of the chamber is configured to place the tissue in close proximity to the solid matrix from which agent is released, andwherein the device is configured to allow removal of the device at the same time as a sample of tissues, cells or fluid at the site of administration into which therapeutic or diagnostic agent is released from each chamber for separately sampling or analyzing of the tissue or cells adjacent to the distal end of the chambers.
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Accused Products
Abstract
Described here are devices, systems, and kits for delivering substances to tissues. The devices generally include one or more chambers (102) and a reservoir (108) within each chamber. The reservoir may locally deliver a microdose amount of a substance to a target tissue. In some variations, a microdose amount is used in early human studies, e.g., before a phase I clinical trial, to evaluate the effect of the substance on a target tissue, or to obtain pharmacokinetic or metabolic data. In other variations, a microdose amount is used to locally treat a medical condition. In yet other variations, a microdose amount is used to locally deliver a contrast agent for a structural or functional imaging procedure. Methods for delivering and retrieving the devices from the target tissue are also described.
25 Citations
23 Claims
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1. A microarray device comprising:
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an elongated support structure configured for administration within a needle, laparoscope, endoscope, arthroscope, or catheter, arrays along the length of the elongated support structure of multiple separate chambers being formed within the support structure, each chamber having a closed proximal end on the interior of the support structure and an open distal end on the outside of the support structure, each chamber comprising a solid matrix forming a reservoir containing microdoses of one or more therapeutic or diagnostic agents in the matrix, which are released into the open distal end only over a period between about one day and one week following insertion of the microarray device into tissue, wherein the open distal end of the chamber is configured to place the tissue in close proximity to the solid matrix from which agent is released, and wherein the device is configured to allow removal of the device at the same time as a sample of tissues, cells or fluid at the site of administration into which therapeutic or diagnostic agent is released from each chamber for separately sampling or analyzing of the tissue or cells adjacent to the distal end of the chambers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification