Valar Labs

Palo Alto, CA, United States  All United States companies → Founded 2021
Point-of-Care Diagnostics Specialty-Focused AI
Series A — $26.1M

Products

Vesta Bladder Risk Stratify Dx
Valar Labs
Clinical Decision Support & Reference
Vesta Bladder Risk Stratify Dx is an AI-enabled digital pathology prognostic test that analyzes stained pathology slides to generate risk assessments and predict treatment responses for bladder cancer patients.

See all 1 product →

About Valar Labs

Valar Labs is a precision medicine company at the forefront of integrating artificial intelligence with oncology to revolutionize cancer treatment decisions. The company develops computational histology AI (CHAI) tests that analyze routinely collected diagnostic biopsies, specifically solid tumors from pathology slides. This innovative approach aims to provide oncologists with interpretable and actionable insights into a patient’s tumor biology, moving beyond traditional methods to predict therapeutic response.

The core mission of Valar Labs is to reduce the significant uncertainty often associated with cancer treatment selection, thereby empowering physicians and patients to make more informed, evidence-based decisions. Their flagship product, Vesta, is an AI-based diagnostic test designed to predict a patient’s response to Bacillus Calmette-Guérin (BCG) therapy in bladder cancer, utilizing routine histology to deliver timely and critical guidance. Beyond bladder cancer, Valar Labs also collaborates with leading pharmaceutical companies to accelerate early research and development programs, focusing on the discovery and deployment of predictive biomarkers for various cancer therapies.

Focus Areas

AI diagnostics oncology cancer treatment decisions computational pathology tumor microenvironment bladder cancer prostate cancer pancreatic cancer precision oncology

Business Intelligence

Key InvestorsDCVC, Andreessen Horowitz (a16z) Bio + Health, Pear VC, REMUS Capital
PartnershipsPathNet Lab, Acupath Laboratories, leading pharmaceutical companies
TechnologyComputational Histology Artificial Intelligence (CHAI) platform, AI foundation models, deep learning system, analyzes standard hematoxylin and eosin (H&E) stained pathology slides, proprietary whole-slide image viewer, lab operating system, clinical data interrogation system

What Physicians Need to Know

AI Diagnostics & Precision Oncology
Valar Labs specializes in AI-powered diagnostics that interpret solid tumors from routine pathology slides to predict treatment response and disease progression. They are pioneering the 'digital and AI generation of precision oncology' by extracting predictive signals not visible to the human eye.
Oncology & Cancer Treatment Decisions
Their core mission is to reduce uncertainty in cancer treatment decisions, empowering physicians with patient-specific evidence to select the most effective therapeutic pathways. They offer insights into how a patient's cancer will respond to treatment, aiming to save time and spare harsh side effects.
Computational Pathology & Tumor Microenvironment
Valar Labs utilizes a 'Computational Histology Artificial Intelligence (CHAI)' platform to analyze standard H&E stained pathology slides. Their AI algorithms assess previously unseen spatial features and generate deep insights from the tumor microenvironment.
Bladder Cancer (Vesta Portfolio)
They offer the Vesta portfolio, including Vesta Bladder Risk Stratify Dx (which received FDA Breakthrough Device Designation) and Vesta Bladder BCGPredict. These tests predict bladder cancer aggressiveness, risk of progression, and response to BCG therapy from routine histology.
Prostate & Pancreatic Cancer
Valar Labs' underlying Vesta platform also powers laboratory developed tests (LDTs) for prostate cancer. Additionally, they have developed Vitara Pancreas ChemoPredict, an AI diagnostic test to predict patient response to FOLFIRINOX and guide first-line treatment for advanced pancreatic cancer.
Key Differentiators
Valar Labs stands out by providing AI-driven predictive biomarkers from routine H&E slides, focusing on treatment response prediction (a 'digital pathology 2.0' approach), and owning their full technology stack (including custom viewers and lab OS) for efficient, local compute. Their AI is designed to be transparent and biologically grounded, offering rapid turnaround times and seamless integration into existing workflows.
Technology Stack
Their technology stack includes proprietary Computational Histology Artificial Intelligence (CHAI) platform and AI foundation models trained on extensive datasets of pathology images. They utilize local hardware for training and inference, and have developed custom software for whole-slide image viewing, lab operations, and clinical data interrogation.
Physician Tip

For physicians, Valar Labs' Vesta and Vitara tests offer a novel approach to precision oncology by providing patient-specific, predictive insights from readily available H&E pathology slides. Consider utilizing these diagnostics for bladder, prostate, and pancreatic cancer patients to gain a deeper understanding of treatment response likelihood and disease progression. The rapid turnaround times (hours to days) can facilitate timely, informed treatment decisions, potentially sparing patients from ineffective therapies and associated toxicities. Their transparent, biologically-grounded AI reports can serve as a 'co-pilot,' augmenting your clinical judgment and enhancing confidence in personalized treatment plans. The seamless integration into existing pathology workflows means no additional biopsies or complex new procedures are required.

Valar Labs diagnostics are designed for seamless integration into existing molecular testing and pathology workflows. They leverage standard H&E stained pathology slides, which are routinely collected, eliminating the need for new procedures or additional specimen collection. The company has established partnerships with digital pathology laboratories, such as PathNet Lab, to expand access to their AI-driven diagnostic tools through established laboratory networks, further facilitating their adoption within clinical settings.

Products by Valar Labs

1 product in the directory

Vesta Bladder Risk Stratify Dx
Valar Labs
Clinical Decision Support & Reference
Vesta Bladder Risk Stratify Dx is an AI-enabled digital pathology prognostic test that analyzes stained pathology slides to generate risk assessments and predict treatment responses for bladder cancer patients.

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Press & Coverage

BioSpace
Valar Labs Receives FDA Breakthrough Device Designation for Vesta Bladder Risk Stratify Dx
Valar Labs announced that the U.S. FDA has granted Breakthrough Device Designation to Vesta Bladder Risk Stratify Dx, making it the first AI-powered digital pathology prognostic test in bladder cancer to receive this status. This designation aims to expedite the development and review of medical devices that offer more effective diagnosis or treatment for life-threatening conditions.
2026-05
Business Wire
Valar Labs Publishes Pivotal Study in Journal of Clinical Oncology Validating AI to Predict Chemotherapy Response for Pancreatic Cancer Patients
Valar Labs announced the publication of a major study in the Journal of Clinical Oncology (JCO) validating their AI diagnostic, Vitara Pancreas ChemoPredict, which can select optimal first-line treatment for advanced pancreatic cancer patients. This marks Valar Labs' expansion into gastrointestinal cancers.
2026-02
JCO Precision Oncology
Development and Validation of a Computational Histology Artificial Intelligenceu2013Powered Biomarker in Metastatic Hormone-Sensitive Prostate Cancer on Randomized Phase III Trials
This journal article details the development and validation of a computational histology AI-powered biomarker for metastatic hormone-sensitive prostate cancer using data from randomized Phase III trials. It highlights Valar Labs' ongoing research and publications in precision oncology.
2026-07
UroToday
Valar Labs' CHAI Biomarkers Validated in New Study in European Urology for Predicting Outcomes of High Grade Ta Bladder Cancer
A study published in European Urology validated Valar Labs' CHAI biomarkers for predicting recurrence and progression outcomes in high-grade Ta non-muscle-invasive bladder cancer, outperforming current guideline-based risk stratification. This research further establishes Vesta as a leading precision oncology platform.
2025-06
FirstWord HealthTech
Lumea and Valar Labs Announce Partnership to Improve Bladder Cancer Treatment Decisions
Lumea and Valar Labs announced a partnership to integrate Valar Labs' Vesta tests into the Lumea digital pathology platform, aiming to provide urologists with an innovative tool to predict patient response to non-muscle-invasive bladder cancer treatment. This collaboration seeks to optimize therapy selection and improve patient outcomes.
2025-10
Business Wire
Acupath and Valar Labs Announce Strategic Partnership to Deliver Vesta, AI-Powered Diagnostic Tests for Nonu2013Muscle Invasive Bladder Cancer
Acupath Laboratories and Valar Labs announced a strategic partnership to offer Valar Labs' Vesta Bladder AI-powered diagnostic test portfolio to Acupath's customers nationwide. This collaboration aims to provide advanced prognostic and predictive insights for clinicians managing non-muscle-invasive bladder cancer.
2025-12
Valar Labs Blog
Announcing Our $22 Million Series A to Accelerate AI in Precision Oncology
Valar Labs announced a $22 million Series A funding round co-led by DCVC and a16z to accelerate the next generation of precision oncology. This funding will support the advancement of Vesta, the world's first AI test to predict treatment response in bladder cancer, and catalyze expansion into other cancers.
2024-05
UroToday
Valar Labs Announces Validation of First Histology-based Test to Predict Response to BCG in Bladder Cancer
Valar Labs announced new data presented at the 2024 Annual Meeting of the American Urological Association (AUA) demonstrating the validation of the first computational histology AI (CHAI) assay with biomarkers for response prediction in bladder cancer. This test aims to help urologists make more informed treatment decisions.
2024-06

Frequently Asked Questions

Valar Labs offers AI-powered diagnostic tests, including Vesta for bladder cancer and Vitara for pancreatic cancer. Vesta Bladder Risk Stratify Dx provides prognostic risk assessment, and Vesta Bladder BCGPredict helps predict response to BCG treatment in non-muscle invasive bladder cancer. Vitara Pancreas ChemoPredict guides first-line chemotherapy selection for advanced pancreatic cancer by predicting response to FOLFIRINOX or gemcitabine/nab-paclitaxel.
Valar Labs utilizes its Computational Histology Artificial Intelligence (CHAI) platform to analyze standard H&E stained pathology slides. This platform extracts predictive signals and insights from the tumor and its microenvironment that are not visible to the human eye. By interpreting these subtle and complex features, the AI models can prognosticate outcomes and predict treatment response.
Valar Labs' current diagnostic tests primarily address bladder cancer with their Vesta portfolio, offering risk stratification and BCG treatment response prediction. They also offer Vitara for pancreatic cancer to guide chemotherapy selection. Additionally, their underlying AI platform supports laboratory-developed tests for prostate cancer.
Valar Labs operates CLIA-certified and CAP-accredited laboratories for its AI-powered lab-developed tests. Their Vesta Bladder Risk Stratify Dx has received FDA Breakthrough Device Designation, recognizing its potential to address an unmet medical need in bladder cancer prognosis.
Valar Labs' diagnostics are designed for seamless integration into existing molecular testing workflows, as they utilize a single, routinely collected pathology slide without requiring additional procedures or samples. Results are delivered rapidly, typically within approximately three days after the sample arrives at their laboratory, enabling timely treatment decisions.
While specific pricing details are not publicly disclosed on their website, Valar Labs is committed to providing patient access regardless of financial circumstances. They offer a Financial Access Program to support patients with financial needs.
Valar Labs, founded in 2021, has demonstrated stability by raising a total of $26.1 million in funding, including a $22 million Series A round co-led by DCVC and a16z in May 2024. The company actively partners with leading pharmaceutical companies to accelerate R&D programs, discover biomarkers, and automate screening for molecular biomarkers.

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