Blind spot
1
After patient identification
Screening finds the person. Rarus Health guides them to the next clinical step.
Rarus Health catches what happens between visits and turns it into action before the patient is lost.
Rarus Health is an international company based in Santiago, Chile. It turns patient messages, documents and check-ins into care signals: what happened, what may need to happen next, what blocked it and who needs to know.
A care signal turns what a family experiences into something a care team or a sponsor can act on.

Pharma and biotech companies
CROs
Clinics and hospitals
The model was proved first in rare disease care.
The family
On WhatsApp, the channel families already use. There is no app to download.
Rarus Health
AI structures routine signals.
A Care Manager handles what needs judgment.
The care team
Rarus Health does not deliver care, diagnose or prescribe. The care team makes clinical decisions.
What the medical record sees
What Rarus Health catches
Patient identified
Blind spot
1
Screening finds the person. Rarus Health guides them to the next clinical step.
Diagnosis
Blind spot
2
Referrals, tests and documents that families manage alone. Rarus Health keeps the context.
Treatment starts
Blind spot
3
Treatment, access and daily life change before the next visit. Rarus Health flags what changed.
Next visit
Patients enter programs, start treatment, or leave the clinic with a care plan. But what happens next is often invisible, until something goes wrong. Rarus Health keeps patients reachable between those steps, and shows your team where they get stuck.
Pharma & CROs
Rarus Health is not another patient support program. It keeps patients reachable from diagnosis to sustained treatment.
Clinics & centers of excellence
Rarus Health is not an ERP module or a dashboard your staff has to run. It works in the clinic's name.
Are you a patient or a family member looking for support? Our partner patient organizations are the best place to start. Find a patient organization
How it works
Patients join Rarus Health through a trusted invitation. Continuity then follows meaningful events in their care journey, not a stream of generic messages.
A follow-up check-in after a scheduled appointment. Sample conversation; the names are fictional.
A physician, nurse or patient organization shares a QR code or link.
The family joins on WhatsApp, receives a clear explanation of the service and gives the applicable consent.
Relevant events and barriers inform the next step, with a Care Manager involved when appropriate.
Every participant gives informed consent, with separate consent for each use. Partner visibility and safety boundaries are set before each deployment.
Care Managers act with the person's consent and never decide for the person.
Companies receive aggregated, anonymized insight, never identifiable patient information.
Rarus Health turns patient messages, documents and check-ins into care signals for people with rare and other complex, long-term conditions. Each signal shows what happened, what may need to happen next, what blocked it and who needs to know. Care Managers act on the signals over WhatsApp. Pharma and biotech companies, CROs, clinics and hospitals use the service to keep patients from getting lost.
Pharma and biotech teams buy Rarus Health to keep identified patients on the pathway: brand and launch teams, Medical Affairs, Market Access and clinical operations. CROs use it for patient-focused feasibility and participant support. Hospitals and clinics use it to follow patients between visits without adding staff.
No. Patients and families do not download new software. They use WhatsApp, the channel they already use. Rarus Health uses AI for routine work, such as scheduled check-ins and reading the documents families send. A Care Manager handles every conversation that needs a person. The care team makes clinical decisions.
Rarus Health is based in Santiago, Chile. Rarus Health works with patient organizations and families in Chile and Colombia. Work with healthcare providers in Brazil is in development. Health systems differ between these countries, so Rarus Health sets up each deployment for the country's own payers, institutions and rules.
Rarus Health began with neuromuscular and metabolic rare diseases, which remain its proof environment. Rarus Health now applies the same care continuity model to other complex, long-term conditions. The model does not depend on one disease. Disease-specific content is added on top of the same service for each deployment.
Most United States platforms build evidence by retrieving electronic medical records. Most of Latin America has no shared electronic record, and many families keep their history on paper. Rarus Health complements record-based platforms: it captures what happens outside the medical record, such as why appointments are missed, where patients leave the pathway and the caregiver’s workload. A human Care Manager, not an automated agent, stays in the conversation.