An interventional study of Radiation: Varying Doses of RT in Transplant-Related Lung Cancer, sponsored by Marc de Perrot. Recruiting at 1 site in Canada. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-10.
Sponsored by Marc de Perrot · Not applicable, Interventional, and Treatment
This is a prospective phase I study to determine the safety and feasibility of non-ablative oligofractionated radiation therapy (NORT) before lung transplantation for patients with underlying pulmonary malignancy. We hypothesize that heterogeneous dose distributions could generate a vaccination effect against the tumor by creating anti-tumoral immune response in the body and these patients may be immunized against their tumor which could reduce the risk of cancer recurrence after transplantation despite the anti-rejection medications required for the transplantation.
This study is designed to deliver short courses of radiation to the pulmonary malignancy followed by resection of the radiated tumor at the time of transplant.
The study is a 3+3 phase 1 study with incremental dose of radiation to determine the maximum tolerated dose (MTD). Dose limiting toxicity (DLT) will be defined as grade 3+ radiation related toxicity. If one DLT is seen, then an additional 3 patients will be treated at the same dose level. If 2 or more DLT are seen at any given dose level, then the previous dose level will be defined as the MTD. A minimum of 3 patients and maximum of 18 patients will be included for the phase 1a. Due to the expected higher radiation risks in patients with end-stage ILD (group 1), these patients will be stratified separately from non-ILD patients (group 2, 3 and 4) during phase 1a. Dose tested are: 3 x 400 cGy, 3 x 600 cGy and 3 x 800 cGy for the ILD cohort and 3 x 800 cGy, 3 x 1000 cGy and 3 x 1200 cGy for the non-ILD cohort.
Once the MTD is determined, patients will proceed to phase 1b using the MTD determined in the phase 1a. ILD and non-ILD patients may have different MTD so two separate phase Ib cohorts will be conducted. A total of 12 patients will be included for each cohort in the phase 1b. The dose distribution will be administered using a standard homogenous dose distribution for tumors ≤2 cm, and an heterogeneous dose distribution for tumors >2 cm.
Marc de Perrot is the lead sponsor of 2 studies on the registry; 2 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Patients will be differentiated into 4 groups: 1. Patients with end-stage interstitial lung disease (ILD) and suspected stage I (up to 4 cm) primary lung cancer 2. Patients with end-stage lung disease other than ILD (e.g. emphysema/COPD, cystic fibrosis and pulmonary hypertension) and suspected stage I (up to 4 cm) primary lung cancer 3. Patients with multifocal primary lung cancer (e.g. multifocal adenocarcinoma) in the absence of nodal metastasis and distant metastasis. 4. Patients with isolated pulmonary metastasis in the absence of other sites of malignancy (primary and metastatic). For this study, different doses will be used for each different group depending on their tumour size. The first 3 patients will start with a dose of 4 Gy, for the ILD group, or 8 Gy, for the non ILD group. The doses are then increased incrementally until the dose limiting toxicity is reached.
Radiation: Radiation: Varying Doses of RT
3+3 radiation dose escalation model to see the maximum tolerated dose
Maximum Tolerated Dose for Radiation
AEs will be graded by CTCAE. Maximum tolerated dose is the dose level do not result in fatal injury (grade 5 lung toxicity) or life-threatening or fatal treatment related toxicity (grade 4+). Safety will be determined by the absence of grade 3 or greater (G3+) complications related to radiation and the feasibility to list patients for transplantation one week after the end of radiation will be determined.
Time frame: Up to four years
Patient Morbidity
NCI common toxicity scale
Time frame: Up to four years
Local recurrence
Documented radiographically
Time frame: Up to four years
Plan to share: No
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