COMPUTING METHODS FOR CONTROL OF HIGH-THROUGHPUT EXPERIMENTAL PROCESSING, DIGITAL ANALYSIS, AND RE-ARRAYING COMPARATIVE SAMPLES IN COMPUTER-DESIGNED ARRAYS

• US 20070021929A1
• Filed: 08/24/2006
• Published: 01/25/2007
• Est. Priority Date: 01/07/2000
• Status: Abandoned Application

• Current Assignee: TransForm Pharmaceuticals, Inc. (Johnson & Johnson)
• Original Assignee: TransForm Pharmaceuticals, Inc. (Johnson & Johnson)
• Inventors: Almarsson, Orn, Chen, Hongming, Lemmo, Anthony, Cima, Michael, Gonzalez-Zugasti, Javier, McNulty, Christopher, Levinson, Douglas, Johnson, Alasdair
• Application Number:
  US11/467,096
• Publication Number:
  US 20070021929A1
• Time in Patent Office: Days
• US Class Current: 702/22
• CPC Class Codes: G01N 2015/1493 Particle size
• CPC Class Codes: G01N 35/00613 Quality control
• CPC Class Codes: G01N 35/00712 Automatic status testing, e.g. at start-up or periodic
• CPC Class Codes: G01N 35/0092 Scheduling

Abstract

Computer-controlled automated high-throughput systems can be used to design, prepare, process, screen, and analyze a large number of samples in removable sample vials each containing a compound of interest formulated with differing component combinations and varying concentrations. The computer-controlled methods of the present invention allow for a determination of the effects of additional or inactive components, such as excipients, carriers, enhancers, adhesives, additives, and the like, on the compound of interest, such as a pharmaceutical. The invention thus encompasses the computer systems, computer methods, and computer-program products for computer-controlled automated high-throughput testing of experimental formulations in order to identify experimental formulations that can be further processed. Identified experimental formulations from multiple arrays can be removed and re-arrayed together to form a new array for further processing.

Claims

1. In a computing system for controlling automated high-throughput processing of an array having removable sample vials held by an array block, wherein the computing system is designed to identify chemical and/or physical properties leading to optimal formulation for a given use of a compound of interest, and wherein the computing system provides computer-aided design and processing of an experimental formulation for each sample, each experimental formulation having the compound of interest and being based on at least one experimental variable which is varied as to at least some samples so that the effect in terms of changes in the chemical and/or physical properties of the compound of interest due to at least one variable can be identified across a number of comparative samples, a method of analyzing data from the comparative samples comprising steps for:

inputting into the computing system at least one compound of interest and any additional components to be included in the experimental formulations that are to be designed for a first array of samples;

inputting into the computing system at least one selected experimental variable of interest that is to be varied as between at least some samples of the first array;

the computing system thereafter determining an experimental formulation for each sample that is different as between at least some samples based on the at least one selected experimental variable of interest that is varied as between the at least some samples of the first array;

the computing system thereafter controlling a process by which the experimental formulation for each sample is prepared in a removable sample vial held by an array block and tested in order to create changes in chemical and/or physical properties of the compound of interest across a number of comparative samples;

inputting to the computing system detected changes across the comparative samples for the at least one compound of interest;

the computing system thereafter automatically screening the samples of the first array by identifying those samples which contain chemical and/or physical properties most likely to lead to optimal formulation for a given use of a compound of interest, and storing as a first data set information as to the experimental formulation and the resulting chemical and/or physical properties for each of the identified samples;

removing from the array block sample those vials for samples not identified as part of the first data set, thereby forming a second array of samples contained by the array block by virtue of those sample not removed; and

the computing system thereafter controlling a process by which the identified samples remaining in the second array are further processed and/or tested in order to further identify chemical and/or physical properties leading to optimal formulation for a given use of a compound of interest.

3. A method as in claims 1 or 2, further comprising:

the computing system causing those sample vials removed from the array block to be placed into a different array block;

the computer system causing additional sample vials to be placed in the different array block to form a third array of removable sample vials each having an experimental formulation including a common compound of interest; and

the computing system thereafter controlling a process by which the samples in the third array are further processed and/or tested in order to further identify chemical and/or physical properties leading to optimal formulation for a given use of a compound of interest.

4. A method as in claims 1 or 2 wherein the at least one selected experimental variable to be varied as between at least some samples of the first array is varied as to at least one of the following:

concentrations of the compound of interest, concentrations of components in the experimental formulations, identity of the components, combination of components, additives, solvents, antisolvent compositions, temperatures, temperature changes, heating, cooling, nucleation seeds, supersaturation, pH, pH change, time of crystallization reaction, and combinations thereof.

5. A method as in claims 1 or 2, further comprising inputting into the computing system at least one criteria for determining the effect of at least one experimental variable for each experimental formulation that is varied as to that experimental variable, where said effect is manifested by a change in one or more of the following for the compound of interest between different experimental formulations:

microstructure, crystallinity, amorphism, polymorphism, hydrate, solvate, isomorphic desolvate, packing order, ionic crystal, interstitial space, lattice, or habit.

6. A method as in claims 1 or 2, wherein the computing system further designs a process for processing each of the experimental formulations in the first or second array of samples to determine an effect on the compound of interest of at least one experimental variable for each experimental formulation having a value for the experimental variable.

7. A method as in claims 1 or 2, wherein the processing of each experimental formulation in the first or second array includes a process consisting of at least one of the following:

mixing, agitating, heating, cooling, adjusting pressure, adding crystallization aids, adding nucleation promoters, adding nucleation inhibitors, adding acids, adding bases, stirring, milling, filtering, centrifuging, emulsifying, mechanically stimulating, introducing ultrasound energy to the experimental formulation, introducing laser energy to the experimental formulation, subjecting the experimental formulation to a temperature gradient, allowing the experimental formulation to set for a time, heating to a first temperature then cooling to a second temperature, and combinations thereof.

8. A method as in claims 1 or 2, wherein the effect in terms of changes in the chemical and/or physical properties of the compound of interest is at least one of causing crystallization, inhibiting crystallization, or formation of a solid form.

9. A method as in claims 1 or 2, wherein each identified sample in the first or second array is selected based on a desired property.

10. A method as in claims 1 or 2, further comprising:

analyzing data regarding the processing of experimental formulations in the first or second array of samples to obtain a data set having the experimental data for each sample; and

analyzing the data set to determine at least one optimal formulation.

11. A method as in claims 1 or 2, wherein experimental formulations in the second array of samples each have a similar chemical and/or physical property.

12. A method as in claims 1 or 2, further comprising the computing system automatically screening the further processed and/or tested identified samples remaining in the second array by further identifying those samples which contain chemical and/or physical properties most likely to lead to optimal formulation for a given use of a compound of interest, and storing as a second data set information as to the experimental formulation and the resulting chemical and/or physical properties for each of the further processed and/or tested identified samples.

13. A method as in claim 12, the computing system thereafter selecting from the first and second data sets those samples which contain chemical and/or physical properties most likely to lead to optimal formulation for a given use of a compound of interest.

2. In a computing system for controlling automated high-throughput processing of an array having removable sample vials held by an array block, wherein the computing system is designed to identify chemical and/or physical properties leading to optimal formulation for a given use of a compound of interest, and wherein the computing system provides computer-aided design and processing of an experimental formulation for each sample, each experimental formulation having the compound of interest and being based on at least one variable which is varied as to at least some samples so that the effect in terms of changes in the chemical and/or physical properties of the compound of interest due to at least one experimental variable can be identified across a number of comparative samples, a computer-program product for implementing a method of analyzing data from the comparative samples, the computer-program product comprising a computer-readable medium containing computer-executable instructions for causing the computing system to execute the method, and wherein the method is comprised of steps for:

inputting into the computing system at least one compound of interest and any additional components to be included in the experimental formulations that are to be designed for a first array of samples;

inputting into the computing system at least one selected experimental variable of interest that is to be varied as between at least some samples of the first array;

the computing system thereafter determining an experimental formulation for each sample that is different as between at least some samples based on the at least one selected experimental variable of interest that is varied as between the at least some samples of the first array;

the computing system thereafter controlling a process by which the experimental formulation for each sample is prepared in a removable sample vial held by an array block and tested in order to create changes in chemical and/or physical properties of the compound of interest across a number of comparative samples;

inputting to the computing system detected changes across the comparative samples for the at least one compound of interest;

the computing system thereafter automatically screening the samples of the first array by identifying those samples which contain chemical and/or physical properties most likely to lead to optimal formulation for a given use of a compound of interest, and storing as a first data set information as to the experimental formulation and the resulting chemical and/or physical properties for each of the identified samples;

the computing system thereafter causing removal from the array block those sample vials for samples not identified as part of the first data set, thereby forming a second array of samples contained by the array block by virtue of those sample not removed; and

the computing system thereafter controlling a process by which the identified samples remaining in the second array are further processed and/or tested in order to further identify chemical and/or physical properties leading to optimal formulation for a given use of a compound of interest.