Clinical trial Recruiting at 17 sites Phase 4 Interventional Ages 18 and up

Comparing two treatments for non-resectable bile duct cancer

Official title: Cholangiocarcinoma Treatment with Radiofrequency Ablation or Photodynamic Therapy: a Randomized Controlled Trial

Run by University of Leipzig · NCT05551299 · Data updated 2026-11-12

This study is testing whether a light-based treatment or a heat-based treatment works better for people with a type of bile duct cancer that can't be surgically removed.

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment258 (estimated)
SponsorUniversity of Leipzig
Academic / other
Locations20 sites (Aachen and 19 other locations)
StatusRecruiting
StartedFebruary 10, 2023
Main results expectedApril 2028
Study endsApril 2028
Registry record updatedMarch 27, 2025
Trial IDNCT05551299 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with confirmed hilar cholangiocarcinoma who are not eligible for surgery.

Probably not a fit

Patients with tumors that are not accessible endoscopically or those with severe coagulopathy or other significant health issues may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial aims to compare the effectiveness of photodynamic therapy (PDT) and radiofrequency ablation (RFA) in treating patients with non-resectable hilar cholangiocarcinoma, a type of bile duct cancer. Patients will receive either PDT, which involves a photosensitizer and light application to kill cancer cells, or RFA, which uses heat to destroy cancer cells. The study will assess survival rates, side effects, and quality of life for participants. This trial is significant as it seeks to provide insights into the more widely available RFA technology compared to the less accessible PDT.

Why it matters

Potential benefit: If successful, this study could provide patients with a more effective treatment option for non-resectable bile duct cancer.

How similar studies have gone: While this approach has not been extensively studied in randomized trials, similar studies have shown promise in using RFA for other types of cancers.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Hilar cholangiocarcinoma (cytological or histological confirmation)
2. Surgery is not planned
3. Age ≥ 18 years
4. Written informed consent

Exclusion Criteria:

1. Tumour not accessible endoscopically
2. Known hypersensitivity to porphyrins or to any of the other ingredients of the photosensitizer chosen
3. Leukopenia (\< 2000/mm3)
4. Thrombocytopenia (\< 100,000 / mm³)
5. Severe, uncorrected coagulopathy (at the discretion of the physician)
6. Suspected erosion of major blood vessels, because of the risk of life-threatening mass haemorrhage exists
7. Porphyria (clinician's assessment) or other light-exacerbated diseases
8. Severely impaired liver and or kidney function (at the discretion of the physician)
9. Bedridden for more than 50% of the time (similar to ECOG (Eastern Cooperative Oncology Group) grade 3)
10. Planned surgical procedure within the next 30 days
11. Concurrent eye disease that will require a slit lamp examination within the next 30 days
12. Prior radiotherapy within the last four weeks
13. Previous PDT or RFA
14. Planned liver transplantation
15. Fertile women (within two years of their last menstruation) without appropriate contraceptive measures (implanon, injections, oral contraceptives, intrauterine devices, partner with vasectomy) while participating in the trial (participants using a hormone-based method have to be informed of possible effects of the trial medication on contraception)
16. Participation in other interventional trials
17. Patients under legal supervision or guardianship
18. Pregnant or nursing women

Where it's running

  • Uniklinik RWTH Aachen, Medizinische Klinik III
    Aachen, Germany
    Recruiting
  • Universitätsklinikum Augsburg; III. Med. Klinik
    Augsburg, Germany
    Recruiting
  • Universitatsklinikum Bonn, Medizinische Klinik und Poliklinik I
    Bonn, Germany
    Recruiting
  • Universitätsklinikum Freiburg, Medizinische Klinik II, Abteilung Gastroenterologie, Hepatologie, Endokrinologie & lnfektiologie
    Freiburg im Breisgau, Germany
    Recruiting
  • Universitätsmedizin Greifswald Klinik für Innere Medizin A
    Greifswald, Germany
    Recruiting
  • Site: Martin-Luther-Universitat Halle-Wittenberg, Universitätsklinik und Poliklinik für Innere Medizin I
    Halle, Germany
    Recruiting
Show 14 more locations
  • Klinikum Hanau; Klinik für Gastroenterologie, Diabetologie und Infektiologie
    Hanau, Germany
    Recruiting
  • KRH Klinikum Siloah, Klinik für Gastroenterologie
    Hanover, Germany
    Recruiting
  • Klinikum St. Georg gGmbH; Klinik für Gastroenterologie, Hepatologie, Diabetologie und Endokrinologie
    Leipzig, Germany
    Recruiting
  • University Hospital of Leipzig, Department of Gastroenterology
    Leipzig, Germany
    Recruiting
  • RKH Kliniken Ludwigsburg- Bietigheim gGmbH, Klinik für Innere Medizin, Gastroenterologie, Hämato-Onkologie, Diabetologie und Infektiologie
    Ludwigsburg, Germany
    Recruiting
  • Universitätsklinikum Gießen und Marburg GmbH (UKGM); Klinik für Innere Medizin mit den Schwerpunkten Gastroenterologie, Endokrinologie, Stoffwechsel und klinische Infektiologie
    Marburg, Germany
    Recruiting
  • Klinikum der LMU München, Medizinische Klinik II, Campus Großhadern
    München, Germany
    Recruiting
  • Universitlitsklinikum Munster Medizinische Klinik B (Gastroenterologie, Hepatologie, Endokrinologie, Klinische lnfektiologie)
    Münster, Germany
    Recruiting
  • Klinikum Nürnberg Nord; Gastroenterologie/ Endokrinologie
    Nuremberg, Germany
    Recruiting
  • Robert-Bosch-Krankenhaus (RBK) Stuttgart; Gastroenterologie, Hepatologie und Endokrinologie
    Stuttgart, Germany
    Recruiting
  • Universitätsklinikum Tübingen, Medizinische Klinik I
    Tübingen, Germany
    Recruiting
  • Vivantes Netzwerk für Gesundheit GmbH, Klinikum Friedrichshain, Innere Medizin/Gastroenterologie
    Berlin, Germany
    Not yet recruiting
  • Universitätsklinikum Frankfurt, Medizinische Klinik 1
    Frankfurt, Germany
    Not yet recruiting
  • Universitätsmedizin Mannheim, II. Medizinische Klinik
    Mannheim, Germany
    Withdrawn

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.