While IPOs for early-stage drug developers have dried up this quarter, companies working more in the digital realm of the health industry have had better luck in going public. Now, a firm that straddles both the therapeutic and tech spheres is gearing up for its go at the IPO window. Caris Life Sciences on Monday proposed to sell 23.5 million shares at a range of $16 to $18 a piece in a NASDAQ IPO. At the midpoint, the firm would raise $400 million and be valued at $5.1 billion — which would take the crown for largest valuation of recent healthtechs to go public. Two virtual care companies — Omada Health and Hinge Health — closed successful public listings this quarter. Omada made its trading debut on Friday after raising $150 million at a roughly $1.1 billion valuation, and Hinge is valued at about $3 billion after pocketing $437 million in its May offering.Diagnostics and discoveryCaris is using next-generation sequencing and AI technologies to develop both blood- and tissue-based cancer diagnostics — and is also leveraging the data it generates to discover new therapeutic targets. The majority of the company's revenue currently comes from MI Profile, its tissue-based molecular profiling solution that includes both immunohistochemistry protein expression testing and MI Cancer Seek, its FDA-approved companion diagnostic to identify cancer patients who may benefit from targeted therapies.Simultaneously providing whole exome and transcriptome sequencing (WES and WTS), MI Cancer Seek was cleared by the US regulator last year to predict whether patients with breast, colorectal, or endometrial cancers, as well as melanoma or non–small-cell lung cancer, could benefit from treatments such as Merck & Co.'s Keytruda (pembrolizumab) and GSK's Jemperli (dostarlimab-gxly). The genomic data produced by MI Cancer Seek — which generates over 28.8 billion datapoints, spanning 84,000 molecular markers, per clinical case, according to Caris — helped the company to develop Caris Assure, its blood-based offering. The Assure solution was designed to improve multiple aspects of the cancer care continuum, from early detection to recurrence monitoring and targeted treatment recommendations. Caris believes that Assure is "the most comprehensive blood-based solution on the market, featuring over 23,000 gene coverage at a raw average sequencing depth of coverage of 8000 times for clinically relevant genes, as compared to other blood-based offerings in the market that only assess 500 to 1000 genes from DNA."Similar to MI Cancer Seek, Assure utilises both WES and WTS to sequencing cell-free DNA and RNA. Moving beyond the original product, however, Caris Assure also sequences genomic DNA and RNA isolated from the white blood cells to identify incidental germline and clonal hematopoiesis (CH) mutations. By integrating the sequencing data with AI and machine learning technologies, Caris believes Assure can provide diagnostic, prognostic, and predictive utility in a single test.The firm began marketing Caris Assure as a laboratory developed test in the first quarter of 2024, though it does not have FDA marketing authorisation.Caris' third offering is centred on sealing partnerships with biopharmas. The Caris Discovery platform combines the multi-omic data generated by its profiling solutions with AI to fuel drug development efforts.The company aims to discover previously unknown targets for antibody-directed therapies — such as antibody-drug conjugates (ADCs), degrader-antibody conjugates and T-cell engagers — as well as for small molecules, protein degraders, synthetic lethality programmes and cell therapies. Caris said its partnership roster includes Moderna, AbbVie, Xencor and Merck KGaA. The latter inked an ADC discovery deal with Caris last year worth up to $1.4 billion.The company is also developing next-generation offerings, including ChromoSeq, an assay to detect and analyse haematological cancers using whole genome sequencing and WTS, and ESPai, an AI and machine learning algorithm to predict the risk of recurrence of early-stage breast cancer.