Safety and Tolerability of LDRT Plus Concurrent Partial SBRT and Tislelizumab in Patients With Bulky Tumors
NCT ID: NCT06349837
Last Updated: 2025-12-17
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
PHASE1
24 participants
INTERVENTIONAL
2024-04-18
2026-11-30
Brief Summary
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Detailed Description
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Step A: A dose escalation of low dose radiotherapy (LDRT) and partial SBRT, at least 3 patients per cohort (a total of at least 9 patients) will be enrolled to determine the maximum tolerated dose (MTD), dose-limiting toxicity (DLT) and recommended dose for expansion (RDE) for lung LDRT and partial SBRT.
All eligible patients will receive LDRT + partial SBRT and Tislelizumab at different dose levels (described as below). Tislelizumab will be given at 200mg as recommended in the instruction manual every 3 weeks until disease progression, unacceptable toxicities, the patient withdraws informed consent, or Tislelizumab reaches a maximum of up to 24 months.
Patients in the dose escalation will receive LDRT + partial SBRT at 3 cohorts with increasing dose levels: 6 Gy (2 Gy/f) + 24 Gy (8 Gy/f); 6 Gy (2 Gy/f) + 30 Gy (10 Gy/f); 6 Gy (2 Gy/f) + 45 Gy (15 Gy/f).
Step B: A dose expansion of LDRT + partial SBRT A cohort of 15 patients will receive lung LDRT and partial SBRT at the RDE determined during the dose-escalation phase in combination with PD-1 inhibitors to obtain additional safety and response data.
Conditions
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Study Design
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NA
SINGLE_GROUP
TREATMENT
NONE
Study Groups
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LDRT+SBRT + Tislelizumab
This is a dose escalation study, low Dose Radiotherapy (LDRT) dose was 6Gy/3f, Stereotactic Ablative Radiotherapy (SBRT) dose was 24Gy/3f , 30Gy/3f and 45 Gy/3f, the dose of Tislelizumab was recommended in the instruction manual.
Tislelizumab
Patients will receive treatment with Tislelizumab (200 mg, iv, d1), every 3 weeks for a maximum of 48 months.
Low Dose Radiotherapy
LDRT (d1-d3): 6Gy/3f with conventional external beam radiation.
Stereotactic Ablative Radiotherapy
Partial SBRT at dose escalation levels: 24Gy/3f, 30Gy/3f, 45Gy/3f.
Interventions
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Tislelizumab
Patients will receive treatment with Tislelizumab (200 mg, iv, d1), every 3 weeks for a maximum of 48 months.
Low Dose Radiotherapy
LDRT (d1-d3): 6Gy/3f with conventional external beam radiation.
Stereotactic Ablative Radiotherapy
Partial SBRT at dose escalation levels: 24Gy/3f, 30Gy/3f, 45Gy/3f.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
2. Be ≥18 years of age on day of signing informed consent.
3. Patients with histologically or cytologically confirmed stage IV solid tumours.
4. Be willing to undergo repeat biopsy of tumor lesions according to the study protocol.
5. Patients who have failed the standard therapy, or who are unsuitable for standard treatment, or refuse chemotherapy.
6. At least one measurable lesion according to RECIST 1.1. A lesion that has previously received radiotherapy can be considered a target lesion only if this lesion is clearly progressed after radiotherapy.
7. The target lesions (irradiated lesions) are \> 5cm in in diameter
8. ECOG 0-2.
9. Life expectancy of \> 3 months.
10. Subjects should agree to use an adequate method of contraception.
Exclusion Criteria
2. With oncologic emergencies that require immediate treatment
3. EGFR/ALK/ROS-1 mutation or mutation status unknown.
4. Has evidence of interstitial lung disease or active and/or non-infectious pneumonitis (drug-induced pneumonia, radiation-induced pneumonia, etc.) requiring steroid therapy.
5. History of pulmonary fibrosis, pulmonary hypertension, severe irreversible airway obstruction disease
6. Patients with peripheral neuropathy.
7. Significant heart disease or impairment of cardiac function
8. Fluid accumulating in the third space, such as pericardial effusion, pleural effusion and peritoneal effusion that remains uncontrolled by aspiration or other treatment
9. Known allergy to drugs or excipients, known severe allergic reaction to any of the PD-1 monoclonal antibodies
10. Known allogeneic organ transplantation (except corneal transplantation) or allogeneic hematopoietic stem cell transplantation.
18 Years
ALL
No
Sponsors
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Sichuan University
OTHER
Responsible Party
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You Lu
Chair of Department of Thoracic Cancer
Principal Investigators
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You Lu, MD
Role: PRINCIPAL_INVESTIGATOR
West China Hospital
Locations
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West China Hospital, Sichuan University
Chengdu, Sichuan, China
Countries
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Central Contacts
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Facility Contacts
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References
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Yin L, Xue J, Li R, Zhou L, Deng L, Chen L, Zhang Y, Li Y, Zhang X, Xiu W, Tong R, Gong Y, Huang M, Xu Y, Zhu J, Yu M, Li M, Lan J, Wang J, Mo X, Wei Y, Niedermann G, Lu Y. Effect of Low-Dose Radiation Therapy on Abscopal Responses to Hypofractionated Radiation Therapy and Anti-PD1 in Mice and Patients With Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys. 2020 Sep 1;108(1):212-224. doi: 10.1016/j.ijrobp.2020.05.002. Epub 2020 May 15.
Lan J, Li R, Yin LM, Deng L, Gui J, Chen BQ, Zhou L, Meng MB, Huang QR, Mo XM, Wei YQ, Lu B, Dicker A, Xue JX, Lu Y. Targeting Myeloid-derived Suppressor Cells and Programmed Death Ligand 1 Confers Therapeutic Advantage of Ablative Hypofractionated Radiation Therapy Compared With Conventional Fractionated Radiation Therapy. Int J Radiat Oncol Biol Phys. 2018 May 1;101(1):74-87. doi: 10.1016/j.ijrobp.2018.01.071. Epub 2018 Mar 12.
Zhou X, Zhou L, Yao Z, Huang M, Gong Y, Zou B, Zhu J, Liu Y, Peng F, Zhang Y, Yu M, Li Y, Na F, Wu Y, Kang K, Xiu W, Zhang X, Zhou L, Xu Y, Wang J, Wang Y, Yang X, Wu Y, Li R, Zhang Y, Yang Z, Zhou Z, Bai J, Yi X, Tong R, Yin L, Chen C, Niedermann G, Lu Y, Xue J. Safety and Tolerability of Low-Dose Radiation and Stereotactic Body Radiotherapy + Sintilimab for Treatment-Naive Stage IV PD-L1+ Non-Small Cell Lung Cancer Patients. Clin Cancer Res. 2023 Oct 13;29(20):4098-4108. doi: 10.1158/1078-0432.CCR-23-0315.
Zhou L, Liu Y, Wu Y, Yang X, Spring Kong FM, Lu Y, Xue J. Low-dose radiation therapy mobilizes antitumor immunity: New findings and future perspectives. Int J Cancer. 2024 Apr 1;154(7):1143-1157. doi: 10.1002/ijc.34801. Epub 2023 Dec 7.
Barsoumian HB, Ramapriyan R, Younes AI, Caetano MS, Menon H, Comeaux NI, Cushman TR, Schoenhals JE, Cadena AP, Reilly TP, Chen D, Masrorpour F, Li A, Hong DS, Diab A, Nguyen QN, Glitza I, Ferrarotto R, Chun SG, Cortez MA, Welsh J. Low-dose radiation treatment enhances systemic antitumor immune responses by overcoming the inhibitory stroma. J Immunother Cancer. 2020 Oct;8(2):e000537. doi: 10.1136/jitc-2020-000537.
Barsoumian HB, Sezen D, Menon H, Younes AI, Hu Y, He K, Puebla-Osorio N, Wasley M, Hsu E, Patel RR, Yang L, Cortez MA, Welsh JW. High Plus Low Dose Radiation Strategy in Combination with TIGIT and PD1 Blockade to Promote Systemic Antitumor Responses. Cancers (Basel). 2022 Jan 3;14(1):221. doi: 10.3390/cancers14010221.
Menon H, Chen D, Ramapriyan R, Verma V, Barsoumian HB, Cushman TR, Younes AI, Cortez MA, Erasmus JJ, de Groot P, Carter BW, Hong DS, Glitza IC, Ferrarotto R, Altan M, Diab A, Chun SG, Heymach JV, Tang C, Nguyen QN, Welsh JW. Influence of low-dose radiation on abscopal responses in patients receiving high-dose radiation and immunotherapy. J Immunother Cancer. 2019 Sep 4;7(1):237. doi: 10.1186/s40425-019-0718-6.
Welsh JW, Tang C, de Groot P, Naing A, Hess KR, Heymach JV, Papadimitrakopoulou VA, Cushman TR, Subbiah V, Chang JY, Simon GR, Ramapriyan R, Barsoumian HB, Menon H, Cortez MA, Massarelli E, Nguyen Q, Sharma P, Allison JP, Diab A, Verma V, Raju U, Shaaban SG, Dadu R, Cabanillas ME, Wang K, Anderson C, Gomez DR, Hahn S, Komaki R, Hong DS. Phase II Trial of Ipilimumab with Stereotactic Radiation Therapy for Metastatic Disease: Outcomes, Toxicities, and Low-Dose Radiation-Related Abscopal Responses. Cancer Immunol Res. 2019 Dec;7(12):1903-1909. doi: 10.1158/2326-6066.CIR-18-0793. Epub 2019 Oct 28.
Other Identifiers
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ECLIPSE-02
Identifier Type: -
Identifier Source: org_study_id