What if human clinical trials were predictable?

Our virtual human models generate human biology. Use VERDICT to evaluate assets, investments, and trial designs.

Virtual human models. Future human experiments.

GEM is our family of generative expression models. It learns human biology to predict drug response before anyone runs the experiment.

Trained on human biology.

Our models learn directly from one of the world’s largest harmonized human RNA-seq collections, connecting biological measurements with curated experimental context and clinical trial outcomes.

bulk RNA-seq samples
800,000
single cells
400M
unique perturbation contexts
22,300
human tissues
50+
therapeutic areas
40+
clinical trials with labelled outcomes
12,418

From generated biology to clinical predictions.

VERDICT uses predicted human biology to forecast trial outcomes, helping you compare treatment effects and safety before running a study.

Significance
Will the primary analysis meet its statistical test?
Direction
If it does, which arm does it favor?
Effect size
How large is the treatment effect?
Adverse events
What serious adverse events are expected in each arm?

Frontier trial prediction

35%

Relative increase in observed success rate.

Among trials VERDICT called successful, compared with all evaluated trials.

In retrospective testing on 1,717 held-out later trials.

Success means at least one significant primary endpoint, not approval.

Observed success rate

All evaluated trials

52%

Trials VERDICT called successful

70%

What can you do with VERDICT?

Predict a future trial

Enter a trial design or registered trial ID. VERDICT combines the design with predicted human biology to forecast treatment effects and safety, with uncertainty to guide your decision.

Enter trial design or NCT IDGenerate human biologySignificance, direction, effect, safety

Optimize a future trial

Compare populations, comparators, endpoints, and doses. Use predicted outcomes to choose a trial design before enrolling patients.

One assetDesign, predict, reviseCompare predicted outcomes

Optimize an asset

Evaluate an asset across indications, doses, and combinations. Compare predicted treatment effects and safety to prioritize the most promising development paths.

Fix a trial designPredict, modify, repeatOptimized asset

Improve a model

Use GEM-generated biological responses and VERDICT trial predictions as feedback for AI models. Evaluate proposed assets and guide the next round of development.

LLM promptGenerate, reward, optimizeBetter biological reasoning

Built by experts in AI, biology and clinical development.

  • Jeff Leek, PhD· TIME100 AI 2025

    Co-Founder, CEO

    A TIME100 AI honoree and winner of the Presidents’ Award for top statistician under 40, whose open-source genomics software has been downloaded more than 1.4 million times.

  • Robert Bradley, PhD

    Co-Founder, SAB Chair

    A Fred Hutch computational biologist whose research showed how faulty RNA splicing drives cancer, and a co-founder of Codify Therapeutics, which develops programmable RNA-targeted therapies.

11 PhD scientists from BMS, J&J, Recursion, Novo, Pathos, Freenome, Genentech

Meet the team

Partner with us

Synthesize Bio enables teams to explore broader research spaces and make faster, more confident drug development decisions. We are actively engaging with biopharma partners to deploy these capabilities at scale.