{"publisher":{"name":"MediaBias News","url":"https://mediabias.news","methodology":"https://mediabias.news/methodology","editorialPrinciples":"https://mediabias.news/editorial-principles","corrections":"https://mediabias.news/corrections"},"scoreGuide":{"trust":"How well corroborated and evidenced the source reporting is. 0-100, higher is better.","critic":"Craft quality of the source journalism: context, balance, fact vs comment. 0-100, higher is better.","hype":"How far the source presentation runs ahead of substance. 0-100, LOWER IS BETTER.","scope":"Scores assess the original reporting this article was written from, not the truth of the underlying event and not the quality of this write-up."},"assessmentGuide":{"type":"coverage-and-source-reporting-analysis","factCheck":{"status":"not-performed","note":"Media Bias News compares coverage and scores the source reporting. It does not currently publish a ClaimReview verdict on whether the underlying event or claim is true."},"sourceFactuality":{"note":"Factuality values describe published ratings of the outlets that covered the story. They are not a factuality verdict on this story or its claims."}},"story":{"id":"https://mediabias.news/health/ai-designed-drug-rentosertib-shows-potential-to-reduce-biological-age-markers","slug":"ai-designed-drug-rentosertib-shows-potential-to-reduce-biological-age-markers","url":"https://mediabias.news/health/ai-designed-drug-rentosertib-shows-potential-to-reduce-biological-age-markers","title":"AI-designed drug rentosertib shows potential to reduce biological age markers","subtitle":"Secondary analysis of a phase 2a study suggests the drug may make patients appear biologically younger.","excerpt":"Insilico Medicine's AI-designed drug rentosertib, tested in a small study for idiopathic pulmonary fibrosis, indicated a reduction in biological age markers. Six independent aging clocks suggested patients treated with the drug appeared biologically younger than those on placebo, with the largest effect seen in the 30mg twice-daily arm.","category":"Health","area":null,"publishedAt":"2026-09-07T19:05:13.581Z","sourceReportedAt":"2026-09-07T18:23:00.000Z","updatedAt":"2026-09-07T19:05:13.581Z","readTime":"4 min read","scores":{"trust":50,"critic":65,"hype":45,"notes":{"trust":"Central claim attributed to Insilico Medicine, with a secondary analysis published in Nature Biotechnology.","critic":"Reports include quotes from the CEO and explain the study's methodology and limitations.","hype":"Headlines and digests suggest reversal of aging, while the full report notes limitations and alternative explanations."}},"tags":["#AIinMedicine","#DrugDiscovery","#AgingResearch","#IdiopathicPulmonaryFibrosis","#ClinicalTrials"],"entities":["Insilico Medicine","Alex Zhavoronkov","rentosertib","idiopathic pulmonary fibrosis"],"body":[{"type":"key_takeaways","items":["Insilico Medicine's drug rentosertib, developed using generative AI, was analysed in a secondary study of 42 patients with idiopathic pulmonary fibrosis.","Six independent aging clocks indicated that patients treated with rentosertib appeared biologically younger than those receiving a placebo.","The most significant effect was observed in the 30mg twice-daily dosage group, where patients appeared 2.7 to 3.5 years younger on certain clocks at week four.","Study authors cautioned that the results cannot yet distinguish between slower aging and the effect of treating an inflammatory lung condition."]},{"type":"paragraph","text":"Insilico Medicine's drug rentosertib, designed with generative artificial intelligence, was the subject of a secondary analysis of a phase 2a study involving 42 patients with idiopathic pulmonary fibrosis. Proteomic data from these patients were analysed using six independent aging clocks. These analyses indicated that patients treated with rentosertib appeared biologically younger than those in the placebo group."},{"type":"paragraph","text":"The largest observed effect was in the group receiving 30mg of rentosertib twice daily. At week four, these patients appeared 2.7 to 3.5 years younger on certain aging clocks. Alex Zhavoronkov, co-CEO of Insilico Medicine, stated that extending the healthy portion of life by three years could translate into significant productivity and savings."},{"type":"paragraph","text":"The study authors noted a significant caveat: the results cannot yet definitively separate slower aging from the effects of treating the lung condition itself, as idiopathic pulmonary fibrosis is an inflammatory disease. They attempted to address this by showing that the 30mg twice-daily arm reversed age-associated protein patterns while the placebo group followed a normal aging trajectory, though this was considered suggestive rather than conclusive."},{"type":"heading","text":"Disagreement on effect size"},{"type":"paragraph","text":"While the TNM report stated that the largest effect observed was between 2.7 and 3.5 years younger on certain clocks at week four, Insilico's own summary of the work described roughly three to four years, and up to six on certain clocks. The ZN.UA report stated that the average biological age of participants decreased by approximately six years after four weeks of the first dose."},{"type":"heading","text":"What the coverage left out"},{"type":"paragraph","text":"None of the left or centre-rated reports mentioned the specific figure of 55,319 UK Biobank profiles used as a reference population in the proteomic analysis, as detailed in the TNM full report. Additionally, none of the centre-rated digests mentioned the seven patients who discontinued the trial due to liver toxicity, a detail present in the TNM full report."}],"basedOn":[{"sourceName":"MarketWatch","url":"https://marketwatch.com/story/insilico-ai-developed-drug-candidate-shows-anti-aging-potential-in-new-study-e417967a?mod=markets","headline":"Insilico AI-Developed Drug Candidate Shows Anti-Aging Potential in New Study","angle":"","publishedAt":"2026-09-07T18:23:00.000Z"},{"sourceName":"Wall Street Journal","url":"https://wsj.com/tech/biotech/insilicos-co-ceo-has-big-hopes-that-fibrosis-drug-can-reverse-aging-too-1c5bf5a6","headline":"Insilico’s Co-CEO Has Big Hopes That Fibrosis Drug Can Reverse Aging Too","angle":"","publishedAt":"2026-09-07T18:23:00.000Z"},{"sourceName":"The Decoder","url":"https://the-decoder.com/ai-designed-drug-appears-to-turn-back-the-bodys-biological-clock-in-early-trial","headline":"AI-designed drug appears to turn back the body's biological clock 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