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ALGORITHMIC TESTS

The Tempus algorithmic test platform leverages our molecular and clinical database, CAP/CLIA lab, and clinician network to develop tests that help inform the treatment of cancer patients.

Laboratory Developed Tests

IPS TEST

The Tempus Immune Profile Score (IPS) is a multimodal biomarker that can be used as a prognostic indicator for adult patients with metastatic and/or stage IV pan-solid tumor disease who are already considered candidates for immune checkpoint inhibitor (ICI) based therapy.

IPS uses DNA and RNA sequencing data from the Tempus xT CDx and xR tests to classify patients as IPS-High or IPS-Low. Patients classified as IPS-High were found to have a higher real world overall survival (rwOS) compared to those with an IPS-Low result when treated with ICI-based regimens. IPS may provide enhanced insights complementary to standard biomarker testing used today.

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Tempus IPS Advantages

No additional tissue required

IPS may be ordered as an add-on with xT CDx & xR combination OR xT & xR combination.

Both DNA and xR RNA seq are required for processing

Clinical Applications

Validated performance of IPS demonstrated that it is prognostic in the following subgroups: PD-L1 (positive/negative), TMB (high/low), and microsatellite instability status (MSS/MSI-high).

AI-DRIVEN HRD TEST

Tempus HRD is a laboratory developed test to predict the probability of a patient’s cancer having a phenotype characterized by the inability to repair DNA breaks via the homologous recombination repair (HRR) pathway, known as homologous recombination deficiency (HRD). It is available as an additional test for patients who are tested with Tempus xT CDx, xT, or xR.

For ovarian and breast cancer, where DNA based methods of HRD detection are common or under investigation, Tempus HRD provides a result based on DNA genome-wide loss of heterozygosity (GWLOH) or evidence of biallelic BRCA1 or BRCA2 loss from the xT CDx test.  For patients with other cancers, Tempus HRD provides an HRD score based on whole transcriptome RNA expression using data from the xR test.

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Tempus HRD Advantages

No additional tissue required

HRD may be ordered as an add-on with xT CDx & xR combination OR xT & xR combination OR xR RNA seq.

The matched normal sample is required for breast and ovarian cancer.
xR RNA seq is required for processing in all other cancers.

A more complete patient view in one test

Gain additional insight into a patient’s tumor molecular phenotype on top of the genomic profiling results assessed by xT CDx, xT, or xR.

AI-DRIVEN TO TEST

The Tempus Tumor Origin (TO) test uses tumor RNA expression results to predict the patient’s most likely cancer type(s) from 68 possible cancer types. The Tempus TO test was developed using a large internal database of clinical and annotated molecular tumor data.

The intended use of the TO test is for cancers of unknown primary and cases for which the available diagnostic information, such as imaging and immunohistochemistry results, do not provide a definitive diagnosis. When paired with xR, the TO results may provide insight into the patient’s diagnosis and tumor site of origin that may be used to inform patient care and clinical trial eligibility.

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Tempus TO Advantages

No additional tissue required

TO can be ordered as an add-on with xT CDx & xR combination OR xT & xR Combination OR xR RNA seq.

xR RNA seq is required for processing.

Coverage of many cancer types

The test characterizes 68 possible cancer types and subtypes to provide precise information for guiding treatment decisions.

DPYD TEST

The DPYD gene encodes the enzyme dihydropyrimidine dehydrogenase (DPD), a key protein involved in 5-FU/Capecitabine metabolism.

The Tempus DPYD test is designed to help physicians to better identify patients who may be at elevated risk for toxicity and serious adverse effects from 5-FU and capecitabine. It is applicable in situations where 5-FU and/or capecitabine treatments are considered, especially colorectal, breast, pancreatic, and other GI cancers.

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Tempus DPYD Advantages

No additional tissue required

DPYD can be ordered as an add-on with xT CDx & xR combination.

The matched normal sample is required for processing.

Expanded toxicity risk assessment

DPYD analysis covers five SNVs in DPYD genes, providing a more complete patient profile.

UGT1A1 TEST

The Tempus UGT1A1 test identifies patients at elevated risk for toxicity from treatment with irinotecan, sacituzumab govitecan, and/or belinostat.

The Tempus UGT1A1 test identifies certain genetic polymorphisms in the UGT1A1 gene. These polymorphisms are associated with an elevated risk of developing toxicity to irinotecan, sacituzumab govitecan, and/or belinostat based on drug labeling. A patient who has one of the following genotypes will receive a positive test result: *28/*28, *6/*6, and *6/*28.

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Tempus UGT1A1 Advantages

No additional tissue required

UGT1A1 can be ordered as an add-on with xT CDx & xR combination.

The matched normal sample is required for processing.

Expanded toxicity risk assessment

The Tempus UGT1A1 test identifies 5 variants from 3 locations on the UGT1A1 gene, for a complete patient profile.

PurIST

Tempus’ PurISTSM test identifies the molecular subtype of patients with unresectable stage III or stage IV pancreatic ductal adenocarcinoma (PDAC).**

PurIST utilizes RNA sequencing information to classify patients with PDAC into either a basal or classical subtype, and may help guide clinical management. Patients with a classical subtype were found to have an overall better prognosis and superior median overall survival when treated with first-line FOLFIRINOX, compared to patients with a basal subtype.1,2

1. Rashid NU, et al. Purity independent subtyping of tumors (PurIST), a clinically robust, single-sample classifier for tumor subtyping in pancreatic cancer. Clin Cancer Res. 2020;26(1):82-92. doi:10.1158/1078-0432.CCR-19-1467.

2. Wenric S, Davison JM, Guittar J, et al. Real-world data validation of the purist pancreatic ductal adenocarcinoma gene expression classifier and its prognostic implications. medRxiv. Published online February 24, 2023. doi:10.1101/2023.02.23.23286356.

**PurIST is only available for retroactive order on xR tests sequenced beginning June 1, 2023.

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Tempus PurIST Advantages

No additional tissue required

PurIST can be ordered as an add-on with xT CDx & xR combination OR xT & xR combination OR xR RNA seq.

xR RNA seq is required for processing.

A more complete patient view in one test

Gain additional insight into a patient’s tumor molecular phenotype on top of the genomic profiling results assessed by xR.

Merlin (powered by SkylineDx)*

Tempus Merlin is an algorithmic test designed to inform the management of early-stage melanoma patients. Tempus Merlin utilizes a CP-GEP model combining clinicopathologic factors with gene expression profiling to provide a risk assessment that can help inform key clinical management decisions. Specifically,  Merlin predicts the likelihood of nodal positivity, which can help inform the SLNB (Sentinel Lymph Node Biopsy) decision process and the patient’s risk of recurrence.

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*Tempus Merlin was developed and is performed by Skyline Dx as a reference laboratory

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xT CDx is a qualitative Next Generation Sequencing (NGS)-based in vitro diagnostic device intended for use in the detection of substitutions (single nucleotide variants (SNVs) and multi-nucleotide variants (MNVs)) and insertion and deletion alterations (INDELs) in 648 genes, as well as microsatellite instability (MSI) status, using DNA isolated from Formalin-Fixed Paraffin Embedded (FFPE) tumor tissue specimens, and DNA isolated from matched normal blood or saliva specimens, from previously diagnosed cancer patients with solid malignant neoplasms.The test is intended as a companion diagnostic (CDx) to identify patients who may benefit from treatment with the targeted therapies listed in the Companion Diagnostic Indications table in accordance with the approved therapeutic product labeling. Additionally, xT CDx is intended to provide tumor mutation profiling to be used by qualified health care professionals in accordance with professional guidelines in oncology for patients with previously diagnosed solid malignant neoplasms. Genomic findings other than those listed in the Companion Diagnostic Indications table are not prescriptive or conclusive for labeled use of any specific therapeutic product. xT CDx is a single-site assay performed at Tempus Labs, Inc., Chicago, IL. For the complete xT CDx label, including companion diagnostic indications and important risk information, please visit tempus.com/xt-cdx-label/

Learn more about our expansive testing capabilities