Unlearn
San Francisco, US · Founded 2017 · 75 employees on LinkedIn · 12 known investors
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Unlearn develops AI-powered digital twins and data analytics tools to optimize clinical trial design and execution for pharmaceutical companies. The company aims to accelerate drug development and bring treatments to patients faster through precision-driven study design.
Also known as Unlearn.ai · Unlearn.ai, Inc.
Founders & leadership
Unlearn was founded in 2017 by Charles Fisher and Aaron Smith.


Investors · 12
Funding
SEC filings, press & company announcements$50M disclosed across 1 round · 2024
- $50MSeries CFeb 2024 · 3 sources
Altimeter Capital (lead), 8VC, DCVC, DCVC Bio, Insight Partners
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Company profile
researched Aug 2026Unlearn provides an AI-based software platform for clinical development, organized around what the company describes as the sequence of decisions that shape a clinical trial. The platform spans three areas: Plan (trial planning and simulation), Monitor (advanced trial monitoring) and Analyze (trial analyses using AI-generated digital twins). Planning tools include Scout, which searches, structures and summarizes literature and regulatory precedent from sources such as PubMed, ClinicalTrials.gov and drugs@FDA; Hindsight, which exposes harmonized clinical trial and real-world datasets for validating clinical and statistical assumptions, population characteristics and endpoint benchmarks; and SimLab, which builds and compares reproducible trial-design scenarios covering endpoints, inclusion/exclusion criteria, sample size and constraints.
The core technology generates digital twins of trial participants that forecast each participant's control-arm outcomes at future time points, which the company applies to reduce control-arm size and increase statistical power. Advanced Trial Monitoring converts blinded trial signals into curated insights intended to surface execution and data-quality issues during a study. Unlearn states it works in therapeutic areas including neuroscience, immunology and metabolic disease, with published work in Alzheimer's disease, ALS and Huntington's disease.
Business model
Unlearn sells AI software and analytics for clinical development to pharmaceutical and biotechnology sponsors, engaging through collaborations and case-study partnerships tied to specific studies and therapeutic programs [0].
Traction
The company reports approximate real-world results of a 33% control-arm size reduction and more than four months of enrollment time saved, a 20% sample-size reduction achieved (28% potential with Bayesian designs plus digital twins) and about $250K per-patient program savings. A retrospective reanalysis of the ADCS DHA Phase 3 Alzheimer's trial (402 patients, 51 sites) is cited as flagging ADAS-Cog anomalies roughly two months into enrollment, about seven months before formal DSMB review. Digital twins are reported to have increased power from 80% to 90% on ADAS-Cog11 at 18 months using PROCOVA, and a 33% control-arm reduction is cited for the Phase 3 bapineuzumab dataset. Multiple biopharma collaborations were announced between November 2025 and July 2026 [0].
▸Full profile — market position, technology, go-to-market
Market position
Unlearn positions itself as a scientific intelligence layer for clinical development and states it is an AI partner to pharmaceutical and biotechnology sponsors, citing named biopharma collaborations and retrospective validation results in Alzheimer's disease [0].
Differentiation is based on AI-generated participant-level digital twins that forecast control outcomes, applied through the PROCOVA approach to reduce control-arm size and boost statistical power, combined with an integrated planning, monitoring and analysis platform in which design scenarios are reproducible and linked to underlying evidence [0].
Technology
AI-generated digital twins of patients that forecast individual control outcomes at each future time point, used with the PROCOVA methodology and Bayesian trial designs; supporting components include harmonized clinical trial and real-world datasets, literature and regulatory-precedent search across PubMed, ClinicalTrials.gov and drugs@FDA, trial simulation tooling, and blinded-signal monitoring analytics. The company reports a disease-specific ALS Digital Twin Generator (ALS DTG) [0].
Go-to-market
Direct engagement with biopharma sponsors, supported by publicly announced collaborations with companies such as AbbVie, Acumen Pharmaceuticals, SOLA Biosciences, VectorY Therapeutics, Trace Neuroscience, QurAlis and reMYND, plus case studies, press releases, published research and conference presentations [0].
Pharmaceutical and biotechnology trial sponsors and their clinical development, biostatistics and trial-operations teams, including companies running early- and late-phase studies in neuroscience, immunology and metabolic disease [0].
Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Competitors · 1
by search overlapCompanies competing with Unlearn for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
▸Research sources · 1
primary sources listed
- Unlearnunlearn.ai · web
1 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Unlearn do?
- Unlearn builds an AI platform with patient digital twins to help biopharma sponsors plan, monitor and analyze clinical trials.
- Who founded Unlearn?
- Unlearn was founded by Charles Fisher, Aaron Smith in 2017.
- Who are Unlearn's investors?
- Unlearn's investors include 8VC, Alumni Ventures, Basecamp Fund, DCVC (Data Collective), Eisai Innovation, Inc., Flucas Ventures, Insight Partners, Necessary Ventures and 4 more.
- How much funding has Unlearn raised?
- Unlearn has disclosed $50M raised across 1 round.
- Where is Unlearn headquartered?
- Unlearn is headquartered in San Francisco, US.







