Scientific evidence

Utility of 31-gene expression profile test in identifying patients with T1 cutaneous melanoma at high risk of SLN positivity and recurrence

Mar 2024

Demonstrate that the 31-GEP offers significant prognostic value in addition to SLN status to help identify patients at the highest risk of tumor recurrence.

Author: Young S, et al.

Publication: ePoster at SSO 2024

23-gene expression profile (GEP) testing for diagnosis of cutaneous melanocytic lesions in a Medicare-eligible population

Mar 2024

The high accuracy and clinical utility of the 23-GEP test demonstrated across multiple prior studies are applicable to the Medicare-eligible population.

Author: Plaza A, et al.

Publication: Poster, presented at the 2023 College of American Pathologist (CAP) Annual Meeting

Inconsistent associations between risk factor profiles and adjuvant radiation therapy (ART) treatment in patients with cutaneous squamous cell carcinoma and utility of the 40-gene expression profile to refine ART guidance

Mar 2024

ART guidance is not determined by the presence of specific clinicopathologic factors, with treated and untreated patients sharing the same risk factor profiles. cSCC risk determination based on NCCN recommendations for clinical factor assessment results in inconsistent use of ART. Including tumor biology-based prognostic information from the 40-GEP refines risk and identifies patients who are most appropriate and likely to benefit from ART, and those that can consider deferring ART

Author: Moody B, et al.

Publication: Dermatology and Therapy

Integrating the 40-gene expression profile (40-GEP) test improves metastatic risk-stratification within clinically relevant subgroups of high-risk cutaneous squamous cell carcinoma (cSCC) patients

Mar 2024

The 40-GEP test demonstrates accurate, independent, clinically actionable stratification of metastatic risk and improves predictive accuracy when integrated into risk classification systems. The improved accuracy of risk assessment when including tumor biology via the 40-GEP test ensures more risk-aligned, personalized patient management decisions.

Author: Wysong A, et. al.

Publication: Dermatology and Therapy

Integrating 40-GEP testing to improve clinical recommendations for adjuvant radiation for cutaneous squamous cell carcinoma: multidisciplinary consensus guidelines

Feb 2024

Combining clinicopathologic staging with the 40-GEP test allows for more accurate prognostic staging of cSCC tumors; this, in turn, improves precision in multidisciplinary treatment recommendations, including the use of ART. The utility of 40-GEP testing has been demonstrated in low-, higher-, and highest-stage cSCC tumors. Additionally, 40-GEP testing has shown greater specificity than current clinicopathologic guidelines in identifying patients at highest risk of nodal or distant metastasis who would most likely benefit from ART, as well as lower risk patients who would benefit less from such therapy. Appropriate use of 40-GEP testing involves a shared decision-making model between the multidisciplinary team and the patient with cSCC, taking into consideration many factors, such as the patient’s risk of metastasis, tumor and nontumor characteristics, and individual preferences. 

Author: Gopal R, et al.

Publication: Journal of Clinical Aesthetic Dermatology

A randomized controlled study on clinical adherence to evidence-based guidelines in the management of simulated patients with Barrett’s esophagus and the clinical utility of a tissue systems pathology test: results from Q-TAB

Jan 2024

TissueCypher optimized adherence to clinical guidelines for surveillance and treatment of both BE patients at high and low risk for disease progression. Use of the test can enable physicians to make risk-aligned management decisions, leading to improved patient health outcomes.  

Author: Peabody J, et al.

Publication: Clinical and Translational Gastroenterology

Diagnostic discordance among histopathological reviewers for difficult-to- diagnose melanocytic lesions

Jan 2024

Author: Hosler G, et al.

Publication: Poster, presented at the 2024 Winter Clinical Dermatology Conference - Hawaii®, Honolulu, Hawaii, January 12-17, 2024

Gene expression differences identified in skin samples of mycosis fungoides, atopic dermatitis, and psoriasis.

Jan 2024

Gene Expression Differences Identified in Skin Samples of Mycosis Fungoides, Atopic Dermatitis, and Psoriasis.

Author: Farberg A, et al.

Publication: Poster, presented at the 2024 Winter Clinical Dermatology Conference - Hawaii®, Honolulu, Hawaii, January 12-17, 2024

The 40-gene expression profile (40-GEP) test identifies cutaneous squamous cell carcinoma (cSCC) patients at high risk of metastasis within lower-staged tumors to better guide treatment decisions

Jan 2024

Publication: Poster, presented at the 2024 Winter Clinical Dermatology Conference - Hawaii®, Honolulu, Hawaii, January 12-17, 2024

The 31-gene expression profile test outperforms AJCC in stratifying risk of recurrence in patients with stage I cutaneous melanoma

Jan 2024

In a head-to-head comparison of DecisionDx-Melanoma to AJCCv8 staging for stage I cutaneous melanoma (CM) patients (n=6,883) two cohorts were analyzed using recurrence-free survival and melanoma-specific survival. Results from the study showed that DecisionDx-Melanoma significantly improved patient risk stratification, independent of AJCC staging in patients. In addition, DecisionDx-Melanoma provided greater separation between high-risk (Class 2B) and low-risk (Class 1A) groups than seen between AJCC stage IA and IB.

Author: Podlipnik S, et al.

Publication: Cancers

Use of the 40-gene expression profile (40-GEP) test in medicare-eligible patients diagnosed with cutaneous squamous cell carcinoma (cSCC) to guide adjuvant radiation therapy (ART) decisions leads to a significant reduction in healthcare costs

Jan 2024

Utilizing the 40-GEP test results to guide ART decision-making would result in material savings to Medicare.

Author: Somani A, et al.

Publication: Journal of Clinical and Aesthetic Dermatology

Real-world evidence confirms risk stratification of the 31-GEP and i31-GEP in prospectively tested patients with stage I-III cutaneous melanoma

Jan 2024

Author: Pariser D, et al.

Publication: Poster, presented at the 2024 Winter Clinical Dermatology Conference - Hawaii®, Honolulu, Hawaii, January 12-17, 2024