Four in five trials miss their enrollment timeline. The patients exist. The physicians who see them are twenty minutes from the site and have never heard of the study.
Ads find strangers. Patients say they would hear about a trial from their own doctor, not a banner. A screener full of strangers is not enrollment.
So we mapped every US physician: what they treat, where they send patients, where those patients live. Then we do the asking, in your name.
Every effective drug had to be tested in someone. Somewhere in the country, that person already exists and already has a doctor. We are building the layer between the two, so that no trial waits on people who were never told, and no patient waits on a breakthrough that already exists.

01
Share the trial protocol.
Protocol, site addresses, target enrollment. A PDF is enough. The surfacing agent returns the ranked physicians for each site, with the reason each one is on the list.
02
We find physicians who have your patients.
The outreach agent reaches them by email and phone, in your name. The ask is specific: which of their patients likely qualify and why. Your coordinator joins when a physician is ready.
03
Patients start enrolling.
Patients arrive at the site the way they always have, with a heads-up before each one. A new list every day: who was reached, who replied, who sent patients, which site needs help next.
No PHI leaves the practice. Spellbinder works at the physician level.
HIPAA compliant. Outreach copy MLR approved.
Nothing to install. Exports to your CTMS on request.
What we built
A map of every US physician and two agents that work it. Nobody on your team builds a list, writes an email or chases a reply.

Healthcare Map
Every US physician, resolved from 400+ sources to one profile: what they treat, whom they send patients to, where those patients live, and which trials they have enrolled into before.

Agents
Two agents work the map. The surfacing agent reads your protocol and sites and delivers a ranked list per site every morning, with the reason each physician is on it. The outreach agent runs the conversation in your name, follows up, logs every reply and hands the physician to your coordinator when they say yes.
What is on the map
Psychiatry
41,000 physicians
Cardiology
33,200 physicians
Endocrinology
26,900 physicians
Oncology
21,700 physicians
Neurology
18,400 physicians
Huntington’s
68 HDSA centers
Duchenne
38 certified care centers
Cystic fibrosis
130+ accredited centers
Pulmonary arterial hypertension
107 accredited centers
Spinal muscular atrophy
29 care center sites
Rett syndrome
20 centers of excellence
Myasthenia gravis
13,900 neurologists
Sickle cell disease
19,900 hematologists
IgA nephropathy
11,600 nephrologists
Eosinophilic esophagitis
15,700 gastroenterologists
Hidradenitis suppurativa
12,800 dermatologists
Fabry disease
Under 2,500 medical geneticists

Trusted by experts at pharmaceutical companies
“Our coordinators had spent a month finding one physician. Spellbinder gave us three in forty-eight hours. We signed before the contract was drafted.”
Clinical Operations Lead
Clinical-stage biopharma
One healthcare map for biopharma
For clinical
Spellbinder finds the physicians who already have your patients, near every site, and reaches them in your name.
For commercial
Spellbinder finds the prescribers you have not reached, the paths into a territory, and the KOLs whose behaviour is shifting.
