Clinical trial · Interventional
Study on Proton Radiotherapy of Thymic Malignancies
PROTHYM - Phase II Non-randomized Study on Proton Radiotherapy Of Thymic Malignancies
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
This is a multicentre non-randomized phase II study of proton beam radiotherapy in patients with thymic epithelial tumours (i.e. thymoma and thymic carcinoma) in the post-operative setting or in inoperable patients with localized disease. Patients not willing or for any reason unsuitable to undergo proton treatment will be asked to participate in a follow-up assessment after the regular photon treatment in the same manner as the included patients. Primary endpoints are:Toxicity (e.g. cardiac and pulmonary toxicity) and Local control at 5 year Secondary endpoints: PFS, Overall survival, Quality of life, measured by EORTC QLQ 30 + LC 13 and relapse pattern
Conditions
Conditions (3)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Cardiotoxicity | — | UNRESOLVED | — |
| Pulmonary Toxicity | — | UNRESOLVED | — |
| Thymus Neoplasms | Thymus Neoplasm | ONTOLOGY_EXACT | 0.98 |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Proton radiation | Radiation | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- Proton radiotherapy
- description
- Proton radiotherapy with RBE doses: * Patients with radical surgery and unfavourable histology (B2, B3, C) and/or Masaoka-Koga stage III, IVa: 2 Gy(RBE), once daily, five days a week to a total dose of 50 Gy(RBE). * Patients with non-radical surgery (R1 resection) regardless of stage and histology: 2.3 Gy(RBE), once daily, 5 days a week to a total dose of 57.5 Gy(RBE) * Inoperable patients regardless of stage and histology and patients with R2 non-radical resection: 2.5 Gy (RBE), once daily, 5 days a week to a total dose of 62.5 Gy(RBE)
- interventionNames
- Radiation: Proton radiation
Primary outcomes (2)
- measure
- Cardiotoxicity and pulmonary toxicity of therapy
- timeFrame
- At 60 months from treatment
- description
- Proportion of patients with cardiac and pulmonary toxicity measured by CTCAE 4.0 \> Grade 2
- measure
- Local tumor control
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Histological or cytological diagnosis of thymoma or thymic carcinoma. * With radical surgery: stage III and IVa and selected stage II with type B2, B3 and thymic carcinoma according to local routine. With non-radical surgery (R1 or R2) or inoperable patient/ patient refusing surgery: stage I - IVa, any histology * PS WHO 0 - 2. * FEV1 \> 1L or \>40 % of predicted and CO diffusion capacity \> 40% of predicted (postoperative measures) * Age \>18 years, no upper age limit. * Written informed consent from patients. Exclusion Criteria: * Masaoka-Koga stage IVb (distant metastases). * Pregnancy. * Serious concomitant systemic disorder incompatible with the study. * Tumour motion \> 0.5 cm on two repeated 4DCT
References
Publications (4)
- RESULTChang JY, Li H, Zhu XR, Liao Z, Zhao L, Liu A, Li Y, Sahoo N, Poenisch F, Gomez DR, Wu R, Gillin M, Zhang X. Clinical implementation of intensity modulated proton therapy for thoracic malignancies. Int J Radiat Oncol Biol Phys. 2014 Nov 15;90(4):809-18. doi: 10.1016/j.ijrobp.2014.07.045. Epub 2014 Sep 24. PMID 25260491
- RESULTGomez D, Komaki R. Technical advances of radiation therapy for thymic malignancies. J Thorac Oncol. 2010 Oct;5(10 Suppl 4):S336-43. doi: 10.1097/JTO.0b013e3181f20ea2. PMID 20859129
- RESULTVogel J, Berman AT, Lin L, Pechet TT, Levin WP, Gabriel P, Khella SL, Singhal S, Kucharczuk JK, Simone CB 2nd. Prospective study of proton beam radiation therapy for adjuvant and definitive treatment of thymoma and thymic carcinoma: Early response and toxicity assessment. Radiother Oncol. 2016 Mar;118(3):504-9. doi: 10.1016/j.radonc.2016.02.003. Epub 2016 Feb 16. PMID 26895711
- RESULTBjork-Eriksson T, Bjelkengren G, Glimelius B. The potentials of proton beam radiation therapy in malignant lymphoma, thymoma and sarcoma. Acta Oncol. 2005;44(8):913-7. doi: 10.1080/02841860500355983. PMID 16332601