System and method for optimizing tissue barrier transfer of compounds
First Claim
1. An apparatus for measuring transfer of components across a tissue, comprising:
- a support plate;
an array of samples supported by the support plate;
a tissue specimen overlaying the array of samples; and
a reservoir plate secured to a side of the tissue specimen opposite the array of samples, the reservoir plate having an array of reservoirs.
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Accused Products
Abstract
The present invention relates to high-throughput systems and methods to prepare a large number of component combinations, at varying concentrations and identities, at the same time, and high-throughput methods to test tissue barrier transfer, such as transdermal transfer, of components in each combination. The methods of the present invention allow determination of the effects of inactive components, such as solvents, excipients, enhancers, adhesives and additives, on tissue barrier transfer of active components, such as pharmaceuticals. The invention thus encompasses the high-throughput testing of pharmaceutical compositions or formulations in order to determine the overall optimal composition or formulation for improved tissue transport, such as transdermal transport.
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Citations
49 Claims
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1. An apparatus for measuring transfer of components across a tissue, comprising:
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a support plate;
an array of samples supported by the support plate;
a tissue specimen overlaying the array of samples; and
a reservoir plate secured to a side of the tissue specimen opposite the array of samples, the reservoir plate having an array of reservoirs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of measuring tissue barrier transfer of a sample, comprising:
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preparing an array of samples, each sample comprising an active component and at least one additional component, wherein each sample differs from at least one other sample with respect to at least one of the identity of the active component, the identity of the additional components, the ratio of the active component to the additional component, or the physical state of the active component;
overlaying the array of samples with a tissue specimen;
securing a reservoir plate to a side of the tissue specimen opposite the array of samples, the reservoir plate having an array of reservoirs corresponding to the array of samples;
filling the array of reservoirs with a reservoir medium; and
measuring concentration of one or more sample components in each reservoir to determine transfer of said sample components from each sample across the tissue specimen. - View Dependent Claims (18, 19, 24, 25, 26, 27)
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17. A method of analyzing tissue barrier flux of a sample, comprising:
preparing an array of samples, each sample comprising a component-in-common and at least one additional component, wherein each sample differs from at least one other sample with respect to at least one of;
the identity of the additional components, the ratio of the component-in-common to the additional component, or the physical state of the component-in-common;
overlaying the array of samples with a tissue specimen;
securing a reservoir plate to a side of the tissue specimen opposite the array of samples, the reservoir plate having an array of reservoirs corresponding to the array of samples;
filling the array of reservoirs with a reservoir medium; and
measuring concentration of the component-in-common in each reservoir as a function of time to determine flux of the component-in-common from each sample across the tissue specimen. - View Dependent Claims (20, 21, 22, 23)
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28. A method of determining tissue barrier flux of a component, comprising:
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preparing an array of samples, each sample comprising a component-in-common and at least one additional component, wherein each sample differs from at least one other sample with respect to at least one of;
the identity of the additional components, the ratio of the component-in-common to the additional component, or the physical state of the component-in-common;
overlaying the array of samples with a tissue specimen; and
determining flux of the component-in-common from a first sample in said array of samples across a tissue specimen. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A method of determining optimal transdermal compositions or formulations, comprising:
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preparing an array of samples, each sample comprising an active component and at least one additional component, wherein each sample differs from at least one other sample with respect to at least one of;
the identity of the active component, the identity of the additional components, the ratio of the active component to the additional component, or the physical state of the active component;
overlaying the array of samples with skin tissue; and
determining flux of the active component from each sample in said array of samples across the skin tissue to determine an optimal transdermal formulation. - View Dependent Claims (40, 41, 42, 43)
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39. A method of determining optimal transdermal compositions or formulations, comprising:
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preparing an array of samples, each sample comprising an component-in-common and at least one additional component, wherein each sample differs from at least one other sample with respect to at least one of;
the identity of the additional components, the ratio of the component-in-common to the additional component, or the physical state of the component-in-common;
overlaying the array of samples with a skin tissue; and
determining flux of the component-in-common from each sample in said array of samples across the skin tissue to determine an optimal transdermal formulation.
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44. An apparatus for measuring transfer of components across a tissue, comprising:
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a base plate;
a spacer plate;
an array of solid source samples supported by the spacer plate;
a tissue specimen overlaying the array of samples;
a reservoir plate secured to a side of the tissue specimen opposite the array of samples, the reservoir plate having an array of reservoirs; and
a clamping means for creating a seal between the reservoir plate and the tissue specimen. - View Dependent Claims (45, 46, 47, 48, 49)
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Specification