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Clinical Trial Site Selection Dashboard

Sam's digital twin dashboard simulates a trial site network and shows how AI-ranked sites can beat the usual tier-one academic picks. Ryght AI's chief medical officer said it matched their approach.

For Episode 34 (March 7, 2026), Sam built a digital twin dashboard for clinical trial site selection with our guest's company, Ryght AI, in mind. It simulates a network of trial sites and contrasts the usual manual strategy, heavy on tier-one academic centers, with an AI-optimized pick. The episode didn't cover the tools Sam used or how long it took, so this page covers what the dashboard does and how the expert reacted.

Why we built it

Ryght AI builds digital twins of clinical trial sites and uses AI agents to match trials to the sites and investigators most likely to enroll patients. Sam wanted to show the gap between picking sites by hand and picking them with AI, and opened at 03:12 by admitting it "may be totally off base."

The stack

Sam didn't name his tools on the show, so we won't. On screen, the dashboard had:

  • A guided tour and a trial strategy snapshot.
  • A digital twin simulation of the site network driven by historical performance data.
  • Simulation parameters for biomarker complexity, plus a census overlay.
This dashboard simulates the clinical trial network using historical performance data and predicts enrollment velocity, diversity, and risk in real time.

— Sam Nadler, Episode 34

How we built it, step by step

  1. Start with a guided tour. The dashboard explains the digital twin and the goal: finish on time, at or under cost, with the right patients enrolled.
  2. Simulate the status quo. A manual strategy that over-indexes on tier-one academic centers, where enrollment can be slow and diversity below target. The dashboard puts a price on it: delays, cost overruns and regulatory risk.
  3. Show the AI-optimized alternative. In Sam's simulation it recovers a two-month delay and hits diversity targets, for example by ranking Emory Healthcare above Mayo Clinic for this trial.
  4. Add parameters that change the ranking. Toggle biomarker complexity, or turn on the census overlay, and the site ranking shifts.

The delay and rankings are outputs of a demo, not real trial data.

How it turned out

Ryght AI's Chief Medical Officer, Dr. Chadi Nabhan, said it was "somewhat" how they think, then warmed up:

So I I like what you've built here. I think it's pretty easy and you certainly picked up on what we're doing.

— Dr. Chadi Nabhan, Episode 34

He explained why it matters at 06:12: trials fail when the drug doesn't work, when it's too toxic, or when the trial never enrolls. Ryght targets the third. He cited that 80% of trials run behind schedule and 50% of sites enroll zero to one patients. Ryght scores sites and sorts them into three tiers by how likely they are to enroll.

What we'd do differently

Rank sites per trial, not on a general prestige list. Dr. Nabhan's point at 07:57 was that the site ranked 20th on a list might be the best one for a specific trial, and the only way to find it is to match the trial's needs to each site's capabilities. Real sponsors add constraints, like needing European sites for a regulatory goal, and a fuller version would model that.

The census overlay turned out to be the most relevant piece: Ryght links its US digital twins to census data because trial enrollment often doesn't reflect the country's demographics. More on AI in healthcare, and for a related build, see the AI start-of-care packet generator. Jordan co-hosted.

FAQ

What is a clinical trial digital twin?

In Sam's dashboard, it's a simulation of a trial site network built from historical performance data that predicts enrollment velocity, diversity and risk. Ryght AI builds digital twins of trial sites worldwide to match each trial with the sites most likely to enroll.

How does AI help with clinical trial site selection?

By matching a specific trial's needs against each site's capabilities instead of defaulting to famous academic centers. Dr. Chadi Nabhan said the site ranked 20th on a generic list could be the best one for a particular trial.

Why do clinical trials fail?

Dr. Nabhan gave three reasons: the drug doesn't work, it's too toxic, or the trial never enrolls enough patients. He said 80% of trials run behind schedule and 50% of sites enroll zero to one patients.

What does a census overlay do in site selection?

It compares site demographics against the US census so sponsors can pick sites that help trials reflect the real patient population. Dr. Nabhan said trial enrollment often skews heavily white and higher-income compared with the US.