Patents Assigned to Quest Diagnostics
  • Patent number: 12054792
    Abstract: The present invention relates to methods for the diagnosis of bacterial vaginosis based on an analysis of a patient sample. For example, patient test samples are analyzed for the presence or absence of one or more lactobacilli and two or more pathogenic organisms. The presence or absence of one or more lactobacilli and two or more pathogenic organisms may be detected using PCR analysis of nucleic acid segments corresponding to each target organism. The quantity of the target organisms can then be used to determine a score which is indicative of a diagnosis of bacterial vaginosis.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: August 6, 2024
    Assignee: Quest Diagnostics Investments LLC
    Inventors: Erik P. Johnson, Dale A. Schwab
  • Publication number: 20240218430
    Abstract: The present technology relates to methods for excluding Lynch syndrome as a possible diagnosis in patients suffering from colorectal cancers or endometrial cancers. These methods are based on detecting the methylation status of the MLH1 promoter ā€˜C’ region in colorectal and endometrial cancer patients using an improved and highly sensitive methylation-specific multiplex ligation-dependent probe amplification (MS-MLPA) assay.
    Type: Application
    Filed: December 11, 2023
    Publication date: July 4, 2024
    Applicant: Quest Diagnostics Investments LLC
    Inventors: Amber C. Donahue, Feras Hantash
  • Publication number: 20240222102
    Abstract: Provided are methods for determining the apolipoprotein E (ApoE) phenotype in a sample by mass spectrometry; wherein the ApoE allele(s) present in the sample is determined from the identity of the ions detected by mass spectrometry. In another aspect, provided herein are methods for diagnosis or prognosis of Alzheimer's disease or dementia.
    Type: Application
    Filed: January 23, 2024
    Publication date: July 4, 2024
    Applicant: Quest Diagnostics Investments LLC
    Inventors: Darren Weber, Nigel Clarke
  • Patent number: 12025610
    Abstract: Methods are described for diagnosing or prognosing insulin resistance in diabetic and pre-diabetic patients, the method comprising determining the amount of insulin and C-peptide in a sample. Provided herein are mass spectrometric methods for detecting and quantifying insulin and C-peptide in a biological sample utilizing enrichment and/or purification methods coupled with tandem mass spectrometric or high resolution/high accuracy mass spectrometric techniques.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: July 2, 2024
    Assignee: Quest Diagnostics Investments LLC
    Inventors: Dov Shiffman, Carmen Tong, James J. Devlin, Michael J. McPhaul
  • Patent number: 12018402
    Abstract: The present technology is related to methods for detecting genetic alterations underlying intracranial neoplasms such as pituitary adenomas, meningiomas, and craniopharyngiomas. The methods disclosed herein are useful in determining whether a patient harboring an intracranial tumor will benefit from or is predicted to be responsive to treatment with an individual therapeutic agent or a specific combination of therapeutic agents. Kits for use in practicing the methods are also provided.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: June 25, 2024
    Assignee: Quest Diagnostics Investments LLC
    Inventors: Michael J. McPhaul, Heather R. Sanders
  • Patent number: 12000831
    Abstract: Methods and kits for detecting alternating spatial expression of PTEN and, optionally, SMAD4, CD44, and/or TP53 in colonic tumors are described. The methods and kits are useful for identifying a cancer stem cell (CSC)-like zone within a colonic tumor, identifying an adenoma-adenocarcinoma (Ad-ACA) transition zone in a colorectal cancer (CRC) tumor, identifying a CRC tumor that contains high-grade adenoma and/or early adenocarcinoma regions, identifying CSCs in a CRC tumor, diagnosing a subject with high-grade colon adenoma and/or early adenocarcinoma, and determining the likelihood that a colonic tumor in a subject will undergo invasive transformation if left untreated.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: June 4, 2024
    Assignee: Quest Diagnostics Investments LLC
    Inventors: Daniel Jones, Kevin J. Arvai, Ya-Hsuan Hsu
  • Publication number: 20240175099
    Abstract: Provided herein are methods for identifying the presence or absence of a target nucleic acid from a microorganism using direct amplification without a step of extraction of the nucleic acids, but retaining substantially the same specificity and sensitivity of methods assaying extracted nucleic acids.
    Type: Application
    Filed: December 22, 2023
    Publication date: May 30, 2024
    Applicant: Quest Diagnostics Investments LLC
    Inventors: Maurice EXNER, Luca Jacky, Yin-Peng Chen, Huong Mai, Michelle M. Tabb, Michael Aye
  • Patent number: 11993820
    Abstract: The present technology relates to methods for excluding Lynch syndrome as a possible diagnosis in patients suffering from colorectal cancers or endometrial cancers. These methods are based on detecting the methylation status of the MLH1 promoter ā€˜C’ region in colorectal and endometrial cancer patients using an improved and highly sensitive methylation-specific multiplex ligation-dependent probe amplification (MS-MLPA) assay.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: May 28, 2024
    Assignee: Quest Diagnostics Investments LLC
    Inventors: Kevin Qu, Feras Hantash, Amber Donahue
  • Publication number: 20240168025
    Abstract: The present invention provides methods of classifying cluster of differentiation (CD) marker phenotype for hematopoietic cancer cells using multiple circulating cell-free CD markers in bodily fluid. In other aspects, treatment and disease progression of particular hematopoietic cancers can be monitored by measuring the levels of CD and other markers in bodily fluids of a patient.
    Type: Application
    Filed: November 27, 2023
    Publication date: May 23, 2024
    Applicant: Quest Diagnostics Investments LLC
    Inventor: Maher ALBITAR
  • Patent number: 11981966
    Abstract: The present technology relates to methods for determining whether a patient diagnosed with breast cancer, colorectal cancer, melanoma or lung cancer will benefit from or is predicted to be responsive to treatment with an individual therapeutic agent or a specific combination of therapeutic agents. These methods are based on screening a patient's solid tumors and detecting alterations in target nucleic acid sequences corresponding to a specific set of cancer-related genes. Kits for use in practicing the methods are also provided.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: May 14, 2024
    Assignee: Quest Diagnostics Investments LLC
    Inventors: Heather Sanders, Kevin Qu, James Prentice, Frederic Waldman
  • Patent number: 11965156
    Abstract: The invention provides methods for isolating RNA from the soluble fraction of urine. The methods can be used for detecting the presence or absence of an RNA, or quantifying the amount of an RNA. The methods are useful for diagnosing an individual suspected of having a disease by detecting the level of RNA associated with the disease in the soluble fraction of urine. The methods are also useful for prognosing an individual diagnosed with a disease by detecting the level of RNA associated with the disease in the soluble fraction of urine.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: April 23, 2024
    Assignee: Quest Diagnostics Investments LLC
    Inventors: Heather Sanders, Hai-Rong Li
  • Patent number: 11965212
    Abstract: Provided herein are methods and compositions for detection of a nucleic acid target in a sample. The methods and compositions use primer directed amplification in conjunction with nucleic acid fragmentation. The methods have high sensitivity even in the presence of a large amount of non-target nucleic acid. Also provided are oligonucleotides and kits useful in the method. Exemplary nucleic acid targets are those with mutant gene sequence such as mutant sequence of the EGFR, APC, TMPRSS2, ERG and ETV1 genes.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: April 23, 2024
    Assignee: Quest Diagnostics Investments LLC
    Inventors: Heather R. Sanders, Kevin Z. Qu, Charles M. Strom, Richard A. Bender
  • Patent number: 11959143
    Abstract: Provided herein are methods for miRNA profiling for the diagnosis, prognosis, and management of melanoma and differentiation of melanoma from nevi.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: April 16, 2024
    Assignee: Quest Diagnostics Investments LLC
    Inventors: Kevin Qu, Anthony Sferruzza, Ke Zhang, Yan Liu, Renius Owen
  • Patent number: 11953507
    Abstract: Methods are provided for determining the amount of an IGF-I and/or IGF-II protein in a sample using high resolution/high accuracy mass spectrometry. The methods generally comprise enriching an IGF-I and/or IGF-II protein in a sample, ionizing an IGF-I and/or IGF-II protein from the sample to generate IGF-I and/or IGF-II protein ions, and determining the amount of IGF-I and/or IGF-II protein ions with high resolution/high accuracy mass spectrometry.
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: April 9, 2024
    Assignee: Quest Diagnostics Investments Incorporated
    Inventors: Cory Bystrom, Shijun Sheng, Nigel Clarke, Richard Reitz
  • Publication number: 20240110899
    Abstract: A method for determining the amount of chromogranin A (CgA) in a sample includes: (a) purifying CgA in the sample; (b) adding an internal standard; (c) ionizing CgA and the internal standard to produce one or more CgA ion(s) and one or more internal standard ion(s) detectable by mass spectrometry; (d) determining the amount of the ion(s) from step (c) by mass spectrometry; and (e) correlating the amount of CgA in the sample to the amount of ion(s) measured in step (d).
    Type: Application
    Filed: December 12, 2023
    Publication date: April 4, 2024
    Applicant: Quest Diagnostics Investments LLC
    Inventors: Darren Weber, Michael P. Caufield, Michael McPhaul, Scott Goldman, Nigel Clarke
  • Patent number: 11921122
    Abstract: Provided are methods of detecting the presence or amount of a vitamin D metabolite in a sample using mass spectrometry. The methods generally directed to ionizing a vitamin D metabolite in a sample and detecting the amount of the ion to determine the presence or amount of the vitamin D metabolite in the sample. Also provided are methods to detect the presence or amount of two or more vitamin D metabolites in a single assay.
    Type: Grant
    Filed: February 9, 2023
    Date of Patent: March 5, 2024
    Assignee: Quest Diagnostics Investments Incorporated
    Inventors: Nigel J. Clarke, Brett Holmquist, Gloria Kwang-Ja Lee, Richard E. Reitz
  • Patent number: 11913079
    Abstract: Described herein are methods and kits for detecting the presence or absence of gene dysregulations such as those arising from gene fusions and/or chromosomal abnormalities, e.g. translocations, insertions, inversions and deletions. The methods, compositions and kits are useful for detecting mutations that cause the differential expression of a 5? portion of a target gene relative to the 3? region of the target gene. The average expression of the 5? portion of the target gene is compared with the average expression of the 3? portion of the target gene to determine an intragenic differential expression (IDE). The IDE can then be used to determine if a dysregulation or a particular disease (or susceptibility to a disease) is present or absent in a subject or sample.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: February 27, 2024
    Assignee: Quest Diagnostics Investments LLC
    Inventor: Shih-Min Cheng
  • Publication number: 20240060950
    Abstract: Provided are methods for determining the amount of tamoxifen and its metabolites in a sample by mass spectrometry. In some aspects, the methods provided herein determine the amount of N-Desmethyl Tamoxifen. In some aspects, the methods provided herein determine the amount of N-Desmethyl Tamoxifen and other tamoxifen metabolites. In some aspects, the methods provided herein determine the amount of tamoxifen, N-Desmethyl Tamoxifen, and other tamoxifen metabolites.
    Type: Application
    Filed: October 25, 2023
    Publication date: February 22, 2024
    Applicant: Quest Diagnostics Investments LLC
    Inventor: Nigel Clarke
  • Patent number: 11885780
    Abstract: Provided are methods for detecting chromogranin A by mass spectrometry. In another aspect, provided herein are methods for quantitating chromogranin A by mass spectrometry. In another aspect, provided herein are methods for prognosis of or measuring the size of neuroendocrine tumors by mass spectrometry.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: January 30, 2024
    Assignee: Quest Diagnostics Investments LLC
    Inventors: Darren Weber, Michael P. Caufield, Michael McPhaul, Scott Goldman, Nigel Clarke
  • Patent number: 11885820
    Abstract: The invention relates to the detection of vitamin D metabolites. In a particular aspect, the invention relates to methods for detecting derivatized vitamin D metabolites by mass spectrometry.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: January 30, 2024
    Assignee: Quest Diagnostics Investments Incorporated
    Inventors: Brett Holmquist, Nigel J. Clarke, Richard E Reitz