Thymus Epithelial TumorPhase 2NCT06311968
The Clinical Study of Post-operative Proton Radiotherapy for Thymus Tumor
A Phase 2 study testing Proton radiotherapy and combined platinum based chemotherapy in people with Thymus Epithelial Tumor and Proton Radiotherapy, run by Jian Chen at 1 site in China.
Trial summary
To observe the efficacy and toxicities of post-operative (R0/R1) proton radiotherapy for locally advanced primary thymus epithelial malignancies. The primary endpoint was progression-free survival and toxicities, and the secondary endpoint was overall survival and cause-specific survival. Read more about this study
- Who is it for?
- Ages 18 to 70 years
- Conditions the study is for
- Thymus Epithelial Tumor, Proton Radiotherapy, Radiation Toxicity
- What is being tested?
- Proton radiotherapy and combined platinum based chemotherapy
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 55 participants
- Where
- 1 siteChina
- Study dates
- 6 May 2024to 28 Feb 2027
- Phase
- Phase 2
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 70 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients with stage II-III (Masaoka-Koga) thymus epithelial malignancies without a history of thoracic radiation therapy, who have undergone radical surgery and have a definite pathological diagnosis, and undergone surgery for R0 (no microscopic residual disease) or R1 (microscopic residual disease) resection, and have indication of postoperative radiation therapy.
- Sign informed consent.
- Between the ages of 18 and 70.
- ECOG general status score of 0-2.
- The expected survival is at least 6 months.
- Adequate organ function: 1). Blood function: absolute neutrophil count (ANC) ≥1.5 x 109/L, platelet count ≥80 x 109/L, hemoglobin ≥9 g/dL 2). Lung function: FEV1>25%, DLCO>25% 3). Cardiac function: no serious pulmonary hypertension, cardiovascular and cerebrovascular diseases, peripheral vascular diseases, serious chronic heart disease and other complications that may affect radiotherapy.4). Adequate liver function: total bilirubin <1.5 times the upper limit of normal value, and AST, ALT<2 times the upper limit of normal value. 5). Adequate renal function: serum creatinine ≤1.5 times the upper limit of normal or calculated creatinine clearance ≥50 ml /min, and urinary protein <2+. Patients with a baseline urinary protein level of 2+ or more should have a 24-hour urine collection and evidence of a 24-hour urinary protein level of 1g or less.
Who cannot join
- Complicated with other malignant tumors that have not been controlled.
- Have large quantity of pleural or pericardial effusion.
- Patient whose particle radiotherapy plan cannot meet the minimum target dose coverage and dose volume limitation requirements, or cannot meet the dose constrains of normal tissue or organs.
- Chest radiation therapy or radioactive particle implantation history.
- Cardiac pacemakers or other internal metal prosthesis implants that may be affected by high-energy radiation or may affect the dose distribution to the radiation target area.
- HIV positive. Hepatitis virus replication phase, need to receive antiviral therapy, but because of concomitant disease cannot receive antiviral therapy. Active stage of syphilis.
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- A history of mental illness may hinder the completion of treatment.
- With serious comorbidity that may interfere with radiotherapy, including: (a) Acute infectious diseases or acute active phase of chronic infection. b) Unstable angina pectoris, congestive heart failure, myocardial infarction that has been hospitalized in the past 6 months. c) Exacerbations of chronic obstructive pulmonary disease or other respiratory conditions requiring hospitalization. d) Severely impaired immune function. e) Diseases with excessive sensitivity to radiation such as ataxia telangiectasia. f) Other diseases that may affect particle radiotherapy.
- Other circumstances that the physician considers inappropriate to participate in clinical study.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
China1 site, 1 recruiting
- Recruiting
Shanghai Proton and Heavy Ion Center
Shanghai, Shanghai Municipality, 201513
Jing Li, 86-21-38296678, jing.li@sphic.org.cn
Kun Liu, 86-21-38296678, kun.liu@sphic.org.cn
About this study
Official title: Prospective Phase II Clinical Study of R0/R1 Post-operative Proton Radiation Therapy for Thymus Epithelial Malignancies
To observe the efficacy and toxicities of post-operative (R0/R1) proton radiotherapy for locally advanced primary thymus epithelial malignancies. The primary endpoint was progression-free survival and toxicities, and the secondary endpoint was overall survival and cause-specific survival.
Read the detailed description
Patients who received R0 resection will receive 45GyE per 18 fractions proton irradiation. Patients who received R1 resection will receive 50GyE per 20 fractions proton irradiation. Patients with thymus cancer should receive combined platinum based chemotherapy (including etoposide combined with cisplatin / carboplatin / loplatin / nedaplatin, paclitaxel combined with cisplatin / carboplatin / loplatin / nedaplatin, Docetaxel combined with cisplatin / carboplatin / loplatin / nedaplatin) for at least 4 cycles. The primary endpoint was progression-free survival and toxicities, and the secondary endpoint was overall survival and cause-specific survival.
- Being tested
- Proton radiotherapy, combined platinum based chemotherapy
- Medical subject headings
- Thymic epithelial tumor, Radiation Injuries
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Proton radiotherapyRadiation
Patients who received R0 resection will receive 45GyE per 18 fractions proton irradiation. Patients who received R1 resection will receive 50GyE per 20 fractions proton irradiation. Patients with thymus cancer should receive combined platinum based chemotherapy (including etoposide combined with cisplatin / carboplatin / loplatin / nedaplatin, paclitaxel combined with cisplatin / carboplatin / loplatin / nedaplatin, Docetaxel combined with cisplatin / carboplatin / loplatin / nedaplatin) for at least 4 cycles.
combined platinum based chemotherapyOther
combined platinum based chemotherapy
| Study group | Role | What they receive |
|---|---|---|
| Study arm | Experimental | Patients who received R0 resection will receive 45GyE per 18 fractions proton irradiation. Patients who received R1 resection will receive 50GyE per 20 fractions proton irradiation. Patients with thymus cancer should receive combined platinum based chemotherapy (including etoposide combined with cisplatin / carboplatin / loplatin / nedaplatin, paclitaxel combined with cisplatin / carboplatin / loplatin / nedaplatin, Docetaxel combined with cisplatin / carboplatin / loplatin / nedaplatin) for at least 4 cycles. Receives: Radiation: Proton radiotherapy; Other: combined platinum based chemotherapy |
What is being measured
The primary outcome is the main question the study is designed to answer.
Disease progression-free survival rate
Disease progression-free survival rate was defined from the start of carbon ion radiotherapy till the date of disease progression at any site or death, or the last follow up.
Measured: From date of radiotherapy started until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 100 months.
Incidence of Treatment-induced Adverse Events
Treatment-induced toxicities were scored using the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0, for events observed after the first dose of irradiation. Toxicities occurred 90 or more days after the completion of CIRT were defined as late toxicities.
Measured: From date of radiotherapy started, every 3-4 months within the first 2 years, every 6 months between years 3 and 5, and annually thereafter, assessed up to 100 months.
Secondary outcomes (2)
Overall survival rate
Overall survival rate was defined from the start of carbon ion radiotherapy till the date of death or the last follow-up.
Measured: From date of radiotherapy started until the date of death from any cause, assessed up to 100 months.
Cause-specific survival rate
Cause-specific survival rate was defined from the start of carbon ion radiotherapy till the date of death caused by non-small cell lung cancer treated in this study or the last follow-up.
Measured: From date of radiotherapy started until the date of death caused by non-small cell lung cancer treated in this study, assessed up to 100 months.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Mar 2024
- Study start6 May 2024
- Primary completion28 Feb 2027 (estimated)
- Study completion28 Feb 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Thymus Epithelial TumorStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 55 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Jian Chen
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Jian Chen, Shanghai Proton and Heavy Ion Center
- Investigators
- Jingfang Mao, PHD, Principal investigator, Shanghai Proton and Heavy Ion Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06311968
- Sponsor's protocol ID
- SPHIC-TR-THLC2023-07
- Status last verified
- Jun 2025
- First submitted
- 9 Mar 2024
- Last updated
- 13 Jun 2025
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided