Methods of measuring potential for therapeutic potency and defining dosages for autologous cell therapies

a technology of autologous cells and potency, applied in the field of measuring potential for therapeutic potency and defining dosages of autologous cells, can solve the problems of significant and expensive clinical care decisions, increase the cost of these proposed therapeutic candidates, and significant labor and complex reagents and materials costs of manipulations, so as to reduce the potential contamination of the therapeutic tissues, reduce the cost, and enhance the effect of safety

Inactive Publication Date: 2015-04-30
BIOCARDIA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0018]For example, the in vitro diagnostic assay for autologous bone marrow derived mononuclear cells for the treatment of heart failure of ischemic etiology may be specified based on the CD profile of the constituent cells; (3) the development of in vitro diagnostic assays in which a small amount of tissue can be assessed to see if the source tissue meets defined thresholds of cellular, protein and/or genetic characteristics that increase a patient's likelihood of achieving a targeted therapeutic dosage when these same cells are harvested, concentrated, and re-administered at a later time point; (4) the delivery of an effective dosage based on the number of cells from a specific population, proteins and/or genes that is present in a patient that would qualify the patient as a responder to the autologous therapy; (5) the delivery of an effective therapeutic dosage based on the efficiency of the delivery route and the delivery method inclusive of the delivery system used to infuse the effective therapeutic dosage into a patient; (6) the delivery of an effecti...

Problems solved by technology

This may and oftentimes does include significant and expensive clinical care decisions, and these tests therefore have value in both mitigating the risks of unnecessary and potentially dangerous procedures and reducing medical costs.
This is a critical problem in the field.
These types of extensive manipulation, cell culture handling and analysis significantly raise the costs of these proposed therapeutic candidates.
Not only do the manipulations themselves have significant labor and complex reagents and materials costs, but they also have shipping and quality control costs on each patient's tissues, resulting in a separate manufacturing lot for each and every dosage form for one particular patient.
Each assay on a potential autologous therapeutic dosage formulation and each step in its handling add significantly to the costs of the therapy—which in turn means that the developer and manufacturer will ultimately have to charge a higher price for their product.
The problem with this therapeutic approach even if the theoretical assertions on the immune privilege status of...

Method used

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  • Methods of measuring potential for therapeutic potency and defining dosages for autologous cell therapies
  • Methods of measuring potential for therapeutic potency and defining dosages for autologous cell therapies
  • Methods of measuring potential for therapeutic potency and defining dosages for autologous cell therapies

Examples

Experimental program
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Effect test

example 1

[0051]This Example describes the selection of patients for autologous tissue therapies based on the analysis of small tissue samples from the patients in advance of the therapy. Such tissue samples and patient selection is determined based on pre-defined thresholds of cellular characteristics such as number of cells per unit volume of tissue, functional capacities, gene expression profiling, and / or cell surface markers such as the levels of known cluster of differentiation (CD) surface markers of the constituent cells. The use of CD markers for immunophenotyping is well known in the art and described in commonly available resources such as: http: / / en.wikipedia.org. / wiki / Cluster_of_differentiation. CD thresholds selected are dependent on the disease being treated and are determined based on past studies where patient improvement has been correlated with the levels of certain CD cell surface markers or other biomarkers in their tissue. In the case of heart failure patients of ischemic...

example 2

[0052]Here we calculate the thresholds for a cardiac therapy as in Example 1. In Example 2, the assumptions are changed to use the effective dosage of at least 162,600 CD34 cells from the FOCUS-CCTRN clinical trial which uses autologous bone marrow mononuclear cells isolated using density gradient centrifugation with Ficoll Paque, instead of the estimated CD34 cells from the ACT34-CMI trial. The same assumption of no cell losses due to cell processing was applied. For our purpose, any reagent such as lymphocyte separating medium having the same characteristics and density as Ficoll Paque could also be used in the cell processing. Therefore, assuming that a full 60 ml of bone marrow aspirate is processed from the patient, to achieve the effective dosage of at least 162,600 CD34 cells, and / or 72,000 CD133 cells and / or 144,000 CD19 cells using the Helix transendocardial delivery system, the minimum number of cells needed to be present per ml of bone marrow aspirate harvested from the p...

example 3

[0053]In Example 3, instead of isolating autologous bone marrow mononuclear cells using density gradient centrifugation with Ficoll Paque or other similar reagent, we use a point of care cell processing system which concentrates autologous bone marrow or blood-derived mononuclear cells using the same technique of density gradient centrifugation without the addition of Ficoll Paque. In this case, we further assume 20 to 50 percent cell losses due to the cell processing. Therefore, assuming that 54 ml of bone marrow aspirate is processed from the patient (it should be noted that 54 ml of bone marrow aspirate is used here to take into account the 6 ml of heparin or other anticoagulating agent used to typically make up the full volume of 60 ml during bone marrow harvest), to achieve the same effective dosage of at least 162,600 CD34 cells from the FOCUS-CCTRN clinical trial, and / or 72,600 CD133 cells, and / or 144,000 CD19 cells using the Helix transendocardial delivery system, the minimu...

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Abstract

Autologous bone marrow cells (BMC) are transplanted to a heterologous site in a patient after a sample of the patient's BMC has been tested and found to have a phenotypic profile which meets minimum criteria for transplantation. The phenotypic profile may be obtained by screening a sample of bone marrow cells (BMC) from the patient for the phenotypic profile, such as a CD profile, the phenotype profile may be assessed to determine the likelihood that the BMC will be suitable for transplantation to the heterologous tissue site without enriching particular phenotypic population(s) of the BMC.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of Provisional Application No. 61 / 896,450 (Attorney Docket No. 29181-707.101), filed Oct. 28, 2013, the entire content of which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]Introduction to Pharmacogenomics and Personalized Medicine.[0003]Pharmacogenomics is the field of selecting the right drug for the right patient at the right time. Its genesis was the belief that the pharmaceutical industry would identify and match patients with specific genetic phenotypes and gene expression profiles who would respond to specific therapeutic medicines, providing a new era of personalized medicine. This would inherently enhance the drugs therapeutic profile, resulting in more successful clinical trial results as the selected patients would have already been identified as potential responders to the therapy. An example of a successful drug that has been developed using the concept of pharmacoge...

Claims

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Application Information

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IPC IPC(8): G01N33/569A61K35/28
CPCG01N33/56966G01N2333/70596A61K35/28G01N2800/52
Inventor ALTMAN, PETERFOO, CHERYL WONG PO
Owner BIOCARDIA
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