MAUDE Adverse Event Report: THERAKOS DEVELOPMENT LIMITED CELLEX PHOTOPHERESIS SYSTEM

Catalog Number	CLXSP-I
Medical Device Problem Code	Fluid/Blood Leak (1250)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	12/16/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The system was used for treatment.This case is reportable as a mdr due to the reportable malfunction pressure dome leak.Since this reportable malfunction is only associated with the kit, this mdr will only be against the kit.A batch record review for kit lot: p246 was conducted.There were no non-conformance's related to the complaint.This lot met all release requirements.A review of kit lot: p246 shows no trends.Trends were reviewed for complaint category, pressure dome leak.No trends were detected for this complaint category.No product was returned for investigation; therefore, it could not be determined if the product met specification based solely on the information provided by the customer.Complaints are monitored through tracking and trending.If a trend is detected, further investigation will be conducted.Investigation complete.(b)(4).(b)(6).On (b)(6) 2026.
Event or Problem Description
The customer contacted therakos to report they experienced a pressure dome leak with their cellex photopheresis kit ("kit") during an extracorporeal photopheresis (ecp) treatment.The customer reported a blood leak from the pressure dome at the beginning of treatment.The ecp treatment was aborted and residual blood within the kit was not returned to the patient.The customer reported the patient was in stable condition.The kit returned was requested; however, it was declined.No product was returned for evaluation.

• Brand Name: CELLEX PHOTOPHERESIS SYSTEM
• Common Device Name: CELLEX PHOTOPHERESIS SYSTEM
• Manufacturer (Section D): THERAKOS DEVELOPMENT LIMITED; blanchardstown, dublin D15 A P2D; EI D15 AP2D
• Manufacturer (Section G): HARMAC MEDICAL PRODUCTS; i.d.a. business park; castlerea roscommon, ; EI
• Manufacturer Contact: mark wendelken ; 440 route 22 east; suite 302; bridgewater, NJ 08807
• MDR Report Key: 24060531
• Report Number: 3036773437-2025-00028
• Device Sequence Number: 13230383
• Product Code: LNR
• UDI-Device Identifier: 00705030000005
• UDI-Public: (01)00705030000005(10)P246(17)270601
• Combination Product (Y/N): Y
• Initial Reporter Country: UK
• PMA/510(K) Number: P860003
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional
• Initial Reporter Occupation: Nurse
• Type of Report: Initial
• Report Date (Section B): 01/13/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Catalogue Number: CLXSP-I
• Device Lot Number: P246
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 12/16/2025
• Initial Report FDA Received Date: 01/13/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 06/16/2025
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Sex: Unknown