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Phio Pharmaceuticals Corp Stock Price, News & Analysis

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Welcome to our dedicated page for Phio Pharmaceuticals news (Ticker: PHIO), a resource for investors and traders seeking the latest updates and insights on Phio Pharmaceuticals stock.

Phio Pharmaceuticals Corp (NASDAQ: PHIO) is a clinical-stage biotechnology pioneer developing next-generation immuno-oncology therapies using its proprietary INTASYL® RNAi platform. This page provides centralized access to official press releases, clinical trial updates, and strategic partnership announcements related to PHIO's innovative approach to enhancing immune cell function against cancer.

Investors and researchers will find timely updates on PHIO's progress in silencing immune checkpoint targets like PD-1 and TIGIT through its self-delivering siRNA technology. The resource covers key developments including clinical trial milestones, collaborative research findings, and regulatory advancements for therapies like lead candidate PH-762.

Content spans multiple categories essential for tracking biopharmaceutical innovation: clinical trial results, research collaborations with institutions like Gustave Roussy, intellectual property updates, and technology licensing agreements. Each update is sourced directly from company disclosures to ensure reliability.

Bookmark this page for streamlined monitoring of PHIO's advancements in RNAi-based cancer therapeutics. Check regularly for new developments in their mission to overcome tumor-induced immunosuppression through precision gene silencing.

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Phio Pharmaceuticals presented data on its lead candidate, PH-762, at the Society for Investigative Dermatology (SID) meeting in Dallas, Texas. PH-762, part of their INTASYL siRNA technology, targets PD-1 to enhance immune cell efficacy against tumors. The preclinical results showed promise, highlighting tumor growth inhibition and extended efficacy in untreated tumors. Toxicokinetic studies in marmoset monkeys confirmed PH-762's safety. PH-762 is in a Phase 1b clinical trial in the US, examining its safety and efficacy in various stages of skin cancers, including cutaneous squamous cell carcinoma, melanoma, and Merkel cell carcinoma.

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Phio Pharmaceuticals has completed dosing the first patient cohort in its Phase 1b trial for PH-762, a lead product designed to enhance immune cell tumor-fighting capabilities using INTASYL™ siRNA gene silencing technology. The trial, conducted across multiple centers, aims to assess the safety, tolerability, and tumor response of intratumoral PH-762 in patients with cutaneous squamous cell carcinoma, melanoma, or Merkel cell carcinoma. Screening for the next dose cohort is ongoing. The study’s results will help determine the recommended dose for further research.

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Phio Pharmaceuticals reported its Q1 2024 financial results and provided updates on its lead product candidate PH-762. The company is conducting a Phase 1b clinical trial across four sites in the US, with promising preliminary results. Phio also presented new data on the immunotherapeutic activity of its INTASYL compound and received a patent for two compounds treating age-related skin disorders. Despite a decrease in cash position, the company managed to reduce research and development expenses, resulting in a lower net loss compared to the previous year.

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Phio Pharmaceuticals Corp. (Nasdaq: PHIO) announces the upcoming presentation of new data on its lead clinical product candidate, PH-762, at the Annual Meeting of the Society of Clinical Oncology (ASCO). PH-762, an INTASYL compound, is being studied in a US clinical trial for specific skin cancers. The open-label Phase 1b clinical study aims to assess safety and efficacy in cutaneous squamous cell carcinoma, melanoma, and Merkel cell carcinoma. The data will be presented by Dr. Mary Spellman at ASCO in Chicago, Illinois on June 1, 2024.

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FAQ

What is the current stock price of Phio Pharmaceuticals (PHIO)?

The current stock price of Phio Pharmaceuticals (PHIO) is $2.16 as of September 16, 2025.

What is the market cap of Phio Pharmaceuticals (PHIO)?

The market cap of Phio Pharmaceuticals (PHIO) is approximately 12.2M.
Phio Pharmaceuticals Corp

Nasdaq:PHIO

PHIO Rankings

PHIO Stock Data

12.20M
5.27M
0.96%
10.24%
5.07%
Biotechnology
Pharmaceutical Preparations
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United States
KING OF PRUSSIA