Apollo begins Delhi trial of non-invasive treatment for severe essential tremor
Indraprastha Apollo Hospitals has treated its first essential tremor patient using the ZAP-X Gyroscopic Radiosurgery System. The same-day, non-invasive procedure will be evaluated for hand-function outcomes over six weeks to six months.
What happened
Indraprastha Apollo Hospitals in Delhi has begun clinical research using the ZAP-X Gyroscopic Radiosurgery System for severe essential tremor, treating its
Key facts
- 66-year-old first trial patient
- 4-5% estimated prevalence among people over 40
- Procedure typically takes about 1 hour
- Patient procedure took around 45 minutes
- Follow-up at 5 weeks
- Response evaluation expected over 6 weeks to 6 months
- 10,400+ beds across 76 hospitals
- 6,600+ pharmacies
- 264 clinics
- 2,182 diagnostic centres
- 800+ telemedicine centres
Why this matters
Positive six-month hand-function data could create partnership, equipment expansion and network-wide deployment opportunities for Apollo in focused radiosurgery and movement-disorder care.
What to watch
- Six-week, three-month, and six-month improvement in validated tremor and hand-function measures.
- Patient volume, referral sources, conversion rates, and proportion of out-of-city medical travelers.
- Safety outcomes, especially neurological side effects, delayed complications, and need for subsequent invasive treatment.
- Indian regulatory status, clinical-guideline recognition, and insurer reimbursement decisions for ZAP-X procedures.
- Apollo announcements of additional ZAP-X installations, specialist hiring, or expansion to other hospital campuses.
- Competing adoption of focused ultrasound, deep-brain stimulation, and other non-invasive tremor technologies in India.
- Publish interim and final patient-reported hand-function, quality-of-life, safety, and retreatment outcomes from the Delhi cohort.
- Build a neurology-neurosurgery referral pathway targeting patients unsuitable for invasive deep-brain stimulation or focused ultrasound.
- Engage insurers, employers, and government payers on coverage criteria and bundled pricing for non-invasive tremor care.
- Assess utilization potential across essential tremor, selected movement-disorder, and radiosurgery indications before committing to additional installations.
- Use trial results in Apollo's premium neuroscience marketing, while clearly distinguishing investigational evidence from established treatment claims.