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Advancing AI to eliminate trial and error in medicine. Read our blog: https://teapaw.org/t.co/u8pjH5CWXk

San Francisco, CA
Joined April 2017
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๐Ÿš€ Jon Walsh, Co-founder and Chief Scientific Officer, and Luis Olmos, Senior Director of Clinical Affairs, are at ARPA-Hโ€™s SURPASS Proposersโ€™ Day in Washington, DC today. SURPASS (Simulation-augmented, Real-time Platform Adaptive Seamless Trials) aims to replace phase-by-phase studies with continuous, adaptive trials that have simulation built into the design. We share that vision. Every clinical trial is a chain of high-stakes decisions, and digital twins, data, and AI can strengthen each one. With Unlearn, teams can simulate a trial before they commit, sharpen interim analyses with our EMA-qualified, FDA-supported PROCOVA method, and get more from completed studies so each readout informs the next design. If youโ€™re at Proposersโ€™ Day, come find us. Weโ€™d love to talk about where digital twins fit in the future of clinical trials. #ARPAH #SURPASS #ClinicalTrials #DigitalTwins โ€”โ€”โ€” @ARPA_H
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From single-study gains to portfolio decisions: a decade of learnings from deploying digital twins in clinical development. ๐Ÿš€ Every clinical trial is an expensive bet and digital twins offer a better way. The question is no longer whether they belong in clinical development, but how to use them well. A decade of deploying them has taught us that the hardest part isnโ€™t the model but making messy clinical data usable, with a record that holds up to scrutiny. On December 7, Dr. Jon Walsh (Co-founder & Chief Scientific Officer, Unlearn) sits down with Dr. Luis Olmos (Senior Director of Clinical Affairs, Unlearn) and Ian Fleming (VP of Product) to share how those lessons became what sponsors asked us to build: one foundation where historical data are unified, harmonized, and used to create and apply digital twins across every program decision. Every result traceable, every study informing the next. 45 minutes of discussion, plus live Q&A. ๐Ÿ“† Monday, December 7, 10 AM PT ๐Ÿ”— Register: na2.hubs.ly/H08R39x0
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Thank you to everyone who met with us at #ESMO2026 in Madrid last week! ๐Ÿ‡ช๐Ÿ‡ธ Many oncology indications now have several standard-of-care regimens that have never been compared head-to-head, and probably never will be. That topic came up again and again in our meetings. Trial-calibrated digital twins can make that comparison at the patient level. Interested in learning more? Weโ€™re at SITC in Phoenix this week. Letโ€™s connect! ๐Ÿ‘‹ #SITC2026 #Oncology #DigitalTwins โ€”โ€”โ€” @myESMO, @sitcancer
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Our Senior Director of Clinical Affairs, Luis Olmos, recently presented at the KoNECT International Conference in South Korea. ๐Ÿ‡ฐ๐Ÿ‡ท His session, โ€œ๐—”๐—œ ๐—ฎ๐—ป๐—ฑ ๐——๐—ถ๐—ด๐—ถ๐˜๐—ฎ๐—น ๐—ง๐˜„๐—ถ๐—ป๐˜€ ๐—ถ๐—ป ๐—–๐—น๐—ถ๐—ป๐—ถ๐—ฐ๐—ฎ๐—น ๐——๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—บ๐—ฒ๐—ป๐˜: ๐—™๐—ฟ๐—ผ๐—บ ๐—œ๐—ป๐—ป๐—ผ๐˜ƒ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐˜๐—ผ ๐—ฅ๐—ฒ๐—ด๐˜‚๐—น๐—ฎ๐˜๐—ผ๐—ฟ๐˜† ๐—ฎ๐—ป๐—ฑ ๐—ฅ๐—ฒ๐—ฎ๐—น-๐—ช๐—ผ๐—ฟ๐—น๐—ฑ ๐—œ๐—บ๐—ฝ๐—น๐—ฒ๐—บ๐—ฒ๐—ป๐˜๐—ฎ๐˜๐—ถ๐—ผ๐—ป,โ€ explored how digital twins can increase statistical power in randomized trials through PROCOVA, support synthetic external controls where randomization is not feasible, and what EMA qualification of PROCOVA means for clinical development. We appreciate KoNECT for the opportunity to share our work and the attendees for a valuable discussion. #KoNECT #DigitalTwins #ClinicalTrials #ClinicalDevelopment
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Back from NEALS 2026 in Clearwater, and grateful for every conversation. ๐ŸŒด We connected with ALS researchers, clinicians, and sponsors about how digital twins can help small and early-phase studies deliver clearer, more trustworthy readouts. We also presented our poster, โ€œ๐—”๐—œ-๐—š๐—ฒ๐—ป๐—ฒ๐—ฟ๐—ฎ๐˜๐—ฒ๐—ฑ ๐——๐—ถ๐—ด๐—ถ๐˜๐—ฎ๐—น ๐—ง๐˜„๐—ถ๐—ป๐˜€ ๐—ฎ๐—ป๐—ฑ ๐—ฃ๐—น๐—ฎ๐˜€๐—บ๐—ฎ ๐—ก๐—ณ๐—Ÿ ๐—ณ๐—ผ๐—ฟ ๐—ง๐—ฟ๐—ถ๐—ฎ๐—น ๐—ฃ๐—น๐—ฎ๐—ป๐—ป๐—ถ๐—ป๐—ด ๐—ฎ๐—ป๐—ฑ ๐—ฆ๐˜๐—ฎ๐˜๐—ถ๐˜€๐˜๐—ถ๐—ฐ๐—ฎ๐—น ๐—˜๐—ณ๐—ณ๐—ถ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐˜† ๐—ถ๐—ป ๐—”๐—Ÿ๐—ฆ,โ€ which showed how digital twin adjustment took a trial designed at 50% power up to 72% on key endpoints. Our ALS model is trained on data from more than 13,600 people with ALS and forecasts outcomes on ALSFRS-R, vital capacity, and plasma NfL. Thank you to everyone who stopped by, and to our partners across the ALS community. Missed us? Explore more of our ALS work here: na2.hubs.ly/H08JWxn0 #NEALS2026 #ALS #DigitalTwins #ClinicalTrials #AI
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๐Ÿ“ฃ Big shoutout to our Clinical Data Scientist, Ann-Kathrin Schalkamp, who presented โ€œAI-Powered Digital Twins: Applications and Opportunities in Clinical Trialsโ€ at the EHDN Plenary Meeting in Krakรณw last week. A participantโ€™s digital twin is a forecast of how that person would progress on placebo, built from their baseline data alone. Added to a randomized trial as a pre-specified covariate, it makes the treatment effect easier to see, using a method EMA qualified in 2022 and FDA concurred with. Ann-Kathrin showed what that means for trial planning. She took 444 real participants the model had never seen during training, selected with the entry criteria todayโ€™s disease-modifying HD trials use, and checked the modelโ€™s two-year forecasts against what actually happened to them. Sized like a current trial, a study of those 444 people could run with 64 fewer on placebo at the same power. Or keep all 444 and cut the chance of missing a drug that works from one in five to one in eight. Our Huntingtonโ€™s Digital Twin Generator was trained on clinical data from 25k+ trial participants across Enroll-HD, REGISTRY, TRACK-HD, PREDICT-HD and completed trials. None of it would exist without the people and families who contributed to those studies, and the teams who built them. Thank you to EHDN and the session chairs for the invitation, and to everyone who stayed for the panel. More on digital twins in Huntingtonโ€™s disease: na2.hubs.ly/H08B2YS0 #EHDN2026 #HuntingtonsDisease #DigitalTwins #ClinicalTrials
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Heading to #NEALS2026 in Clearwater? Come find us at Poster #212. Weโ€™ll be presenting โ€œAI-Generated Digital Twins and Plasma NfL for Trial Planning and Statistical Efficiency in ALS,โ€ including how pre-specified digital twin adjustment (PROCOVA) would take a study designed at 50% power to 67% on ALSFRS-R and 72% on SVC. ๐Ÿ“ Poster #212 ๐Ÿ—“๏ธ October 29, 4:50โ€“6:30 PM ET Stop by, or reach out to find time to connect while weโ€™re there. #ALS #DigitalTwins #ClinicalTrials
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#UnlearnerSpotlight ๐Ÿš€ โ€œI love the freedom to propose new ideas and actually see them through, and I get to work alongside incredibly talented people who I learn from every day. Most of all, I like knowing my work helps speed up clinical trials and get treatments to patients faster.โ€
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๐Ÿ’‰ Obesity drugs now deliver more weight loss than is even desired in most cases, shifting the question from how well a drug works to how easily it can be tolerated.ย  In Part 2 of his obesity in clinical trials series, our co-founder and Chief Scientific Officer Jon Walsh looks at what that means for the future of obesity trials. As more treatments reach the market, dropout and drop-in (placebo patients starting marketed drugs mid-trial) will change, the apparent treatment effect will shrink, and comparing therapies will get harder. Read the full post: na2.hubs.ly/H08v_0d0 #Obesity #ClinicalTrials #DigitalTwins #ClinicalDevelopment
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๐ŸŽ‰ Weโ€™re excited to welcome Ian Fleming as Unlearnโ€™s new VP of Product. Ian brings 25 years of experience in the life sciences industry. He started with hands-on statistical work on clinical programs, then moved into building the technology that clinical and biometrics teams rely on, most recently building a team that delivered foundational components of a major clinical data platform and its AI infrastructure. Welcome to the team, Ian!
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Sponsors are no longer asking whether digital twins work. Theyโ€™re asking who builds the infrastructure, what data it runs on, and whether it will hold up when regulators ask about it years from now. Many internal builds stall on the same three things: single-study models that canโ€™t follow a program as it evolves, the cross-functional alignment needed to get twins into a protocol, and harmonized data that everything else depends on. In our latest post, we share what weโ€™ve learned from working with leading sponsors, including why the right unit for a model is the disease, not the study. If your team is building this now, or has tried and stalled, weโ€™d like to compare notes. na2.hubs.ly/H08rdMf0 #DigitalTwins #ClinicalDevelopment #AIinClinicalTrials
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๐Ÿ“„ Our latest whitepaper, A Field Guide to Digital Twins in Clinical Development, walks through each decision point in a study, from eligibility criteria and sample size in design, to stopping rules at interim, to interpreting the result after readout, and shows how digital twins fit at every step. It also covers the methods behind each use and the deployment principles we follow, drawn from the @FDA's draft guidance on AI in drug development. Download the field guide: na2.hubs.ly/H08nFyK0 #ClinicalTrials #DigitalTwins #DrugDevelopment #Biostatistics #AI
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One of the biggest problems in #obesity #clinicaltrials today is that placebo patients can figure out their assignment quickly and take action into their own hands if theyโ€™re not losing weight. They can leave the study, or start treatment on their ownโ€ฆall while their results still count toward the placebo arm. Our co-founder and Chief Scientific Officer, Jon Walsh, wrote about what that does to the data and why the fix belongs in #trialdesign. Read the post: na2.hubs.ly/H08ftx20
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๐Ÿ‡ต๐Ÿ‡ฑ Heading to #EHDN2026 in Krakรณw, October 22โ€“24? Catch our presentation, "AI-Powered Digital Twins: Applications and Opportunities in Clinical Trials." Huntington's disease progresses differently in every patient, which makes treatment effects hard to detect. A #digitaltwin for each participant helps: more power, a smaller control arm, and more participants on the investigational treatment. In planning one HD registrational study, digital twins reduced the required sample size by up to 29%. Connect with us in Krakรณw.
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More drug candidates than the trial system can absorb. Then what? The takeaways from our panel with Tala Fakhouri (Parexel, formerly FDA), Barbara Bierer (Harvard Medical School, MRCT Center), and Unlearnโ€™s Co-founder and CSO, Jon Walsh, plus the recording: na2.hubs.ly/H089S910
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๐Ÿ’Š Every clinical trial is a chain of decisions, and you don't have to wait for the next protocol to start making them with better evidence. In a new post, our Co-founder and Chief Scientific Officer Jon Walsh lays out the three points in a trial where sponsors can come in. He also names a mistake he often sees teams make when building AI for drug development. The principles behind machine learning were never written down, so he wrote down three of them, along with why they matter when the data is private and the stakes are a go/no-go decision. This post also opens a new chapter in how Unlearn works with sponsors: data, digital twins, and AI working together at all three points. Read Jon's post: na2.hubs.ly/H089c_20 #ClinicalTrials #DigitalTwins #DrugDevelopment #AI #MachineLearning
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๐Ÿš€ Big shout-out to our Principal Biostatistician, Run Zhuang, for presenting "Machine Learning Generated Digital Twins as External Controlsโ€ at the ASA Biopharmaceutical Section Regulatory-Industry Statistics Workshop. Run showed how AI-generated #digitaltwins serve as external controls in non-randomized #trials to improve efficiency and reduce bias to establish causal effects. Thank you to everyone who stopped by! #RISW2026
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4๏ธโƒฃ days out from our webinar: More Drugs, Faster: Can Clinical Development Keep Up? Dr. Jon Walsh (Unlearn), Dr. Tala Fakhouri (Parexel, formerly FDA/CDER), and Dr. Barbara Bierer (Harvard, MRCT Center) on what faster discovery demands of sponsors, regulators, and the people running trials. ๐Ÿ“… Monday, September 28, 11 AM PT / 2 PM ET. Can't attend live? Register and we'll send the recording. โžก๏ธ Register: na2.hubs.ly/H07_k1z0
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#UnlearnerSpotlight ๐Ÿš€ โ€œMy favorite part about working at Unlearn is the โ€˜lightbulb momentโ€™ when customers see how our offerings can improve their day-to-day work.โ€
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