Proteus 235 Proteus ONERecalls & reported problems
Ion Beam Applications SA · IBA Proton Therapy System – Proteus 235 · Class 2
All models of Proteus 235 (3)
Data updated Oct 16, 2026 from official FDA records · Editorial policy
- Adverse event reports
- 2
- Deaths reported
- 0
- Injuries reported
- 2
- Recalls naming it
- 0
Summary
The FDA's MAUDE database contains 2 adverse event reports that list this exact device (DI 05404013821303), received between May 25, 2022 and Jun 17, 2022 — classified as 2 injuries.
The most frequently reported specific device problem is “Compatibility Problem” (1 report).
Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event, and counts can't be used to compare devices or estimate failure rates. What reports can and can't tell you · How this data works · Data updated Oct 16, 2026.
Most reported problems
Device problems
- Adverse Event Without Identified Device or Use Problem2
- Compatibility Problem1
- Insufficient Device Problem Information1
Patient problems
- Radiodermatitis2
Recent adverse event reports
The 2 most recent of 2 reports, in the reporter's own words as published by the FDA.
InjuryJun 17, 2022Adverse Event Without Identified Device or Use Problem; Compatibility Problem; Adverse Event Without Identified Device or Use Problem
EVENT DESCRIPTION: ON MAY 19, 2022, IBA WAS MADE AWARE THAT A PATIENT DEVELOPED A DELAYED UNANTICIPATED SKIN REACTION FOLLOWING A PROTON THERAPY TREATMENT COMPLETED MID-MARCH 2022. THIS REACTION WAS DISCOVERED DURING A CLINICAL FOLLOW-UP ON MAY 18, 2022. EXCESSIVE SKIN REACTION CAN BE EXPLAINED BY DIFFERENT CAUSES. IBA'S INVESTIGATION IS ONGOING. THE PRELIMINARY RESULTS SHOW THAT THE SYSTEM BEHAVED AS EXPECTED, WITHOUT ANY MALFUNCTION. FURTHERMORE, THE IMPACTED PATIENT RECEIVED A VACCINE AGAINST COVID-19 AND RADIATION RECALL DERMATITIS CASES HAVE BEEN REPORTED AS MORE FREQUENT WITH THE ADMINISTRATION OF COVID-19 VACCINE. A SUPPLEMENTAL REPORT WILL BE SUBMITTED ONCE THE INVESTIGATION HAS BEEN COMPLETED. IBA REFERENCE: (B)(4).
Patient problems: Radiodermatitis
MAUDE report 14731606 ↗InjuryMay 25, 2022Adverse Event Without Identified Device or Use Problem; Insufficient Device Problem Information; Adverse Event Without Identified Device or Use Problem
ON APRIL 28, 2022, IBA WAS MADE AWARE THAT A PATIENT DEVELOPED A SEVERE SKIN REACTION FOLLOWING A PROTON THERAPY TREATMENT THAT WAS STARTED ON (B)(6) 2022. EXCESSIVE SKIN REACTIONS CAN BE EXPLAINED BY DIFFERENT CAUSES. IBA'S INVESTIGATION IS ONGOING. A SUPPLEMENTAL REPORT WILL BE SUBMITTED ONCE THE INVESTIGATION HAS BEEN COMPLETED.
Patient problems: Radiodermatitis
MAUDE report 14497661 ↗
Other System, Radiation Therapy, Charged-Particle, Medical devices
- IBA Proton Therapy System – Proteus 235 Proteus PLUS/Proteus ONEIon Beam Applications SA · System, Radiation Therapy, Charged-Particle, Medical8 recalls1 report
- MEVION S250iMevion Medical Systems, Inc. · System, Radiation Therapy, Charged-Particle, Medical5 recalls5 reports
- Mevion Medical Systems S250Mevion Medical Systems, Inc. · System, Radiation Therapy, Charged-Particle, Medical4 recalls1 report
- PROBEAT PROBEAT-FRHitachi, Ltd. · System, Radiation Therapy, Charged-Particle, Medical2 recalls2 reports
- PROBEAT PROBEAT-CRHitachi, Ltd. · System, Radiation Therapy, Charged-Particle, Medical2 recalls0 reports
- Proteus 235 Proteus PLUSIon Beam Applications SA · System, Radiation Therapy, Charged-Particle, Medical1 recall1 report
- I2C (IBA Image-Guided Therapy Console) adaPTinsightIon Beam Applications SA · System, Radiation Therapy, Charged-Particle, Medical1 report
- Proteus 235 Proteus PLUSIon Beam Applications SA · System, Radiation Therapy, Charged-Particle, Medical1 report
Sources and updates
- Device record: FDA GUDID, file dated Oct 13, 2026 · View this device in AccessGUDID ↗
- Adverse event reports: FDA MAUDE, file dated Oct 14, 2026 · each report above links to its original FDA record
- Recalls: FDA Medical Device Recalls, file dated Oct 16, 2026
- Page last rebuilt: Oct 16, 2026. Data downloaded through openFDA, which notes it is not validated for clinical or regulatory use.
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