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Reduced-dose Radiotherapy for Stage III Nasopharyngeal Carcinoma Based on the Treatment Response

Reduced-dose Radiotherapy for Stage III Nasopharyngeal Carcinoma Based on the Treatment Response: an Open Label, Non-Inferiority, Multicenter, Randomized Phase 3 Trial

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06239727
Enrollment
593
Registered
2024-02-02
Start date
2024-03-01
Completion date
2030-02-20
Last updated
2026-03-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Nasopharyngeal Carcinoma

Keywords

Radiotherapy, Dose, PD-1, Immune Checkpoint Inhibitor, Capecitabine, Quality of Life, Personalised Therapy, Complication, Deintensification

Brief summary

This is an Open Label, Non-Inferiority, Multicenter, Randomized Phase 3 Trial aimed to investigate the impact of reduced-dose radiotherapy in combination with chemotherapy and immunotherapy on patients' prognosis and complication compared with conventional-dose radiotherapy in combination with chemotherapy and immunotherapy for treatment-sensitive stage III NPC patients screened out according to the treatment response.

Detailed description

The goals of this clinical trial includes: ① To confirm whether LRRFS after reduced-dose radiotherapy in combination with chemotherapy and immunotherapy is non-inferior to LRRFS after conventional-dose radiotherapy in combination with chemotherapy and immunotherapy for treatment-sensitive stage III NPC patients screened out according to the treatment response; ② To explore the impact of reduced-dose radiotherapy on 3-year OS, 3-year PFS, 3-year DMFS, 3-year LRFS and 3-year RRFS for treatment-sensitive stage III NPC patients screened out according to the treatment response; ③ To explore the impact of reduced-dose radiotherapy on radiotherapy complications and quality of life; ④ To explore the interaction between different clinical factors and the impact of reduced-dose radiotherapy on the prognosis of patients; ⑤ To explore the biomarkers of sensitivity to chemotherapy and radiotherapy for patients with nasopharyngeal carcinoma and the underlying mechanism. For these purposes, we plan to prospectively enroll stage III NPC patients from hospitals in China. The participants will receive 3 cycles of induction chemotherapy (GP regimen + Camrelizumab) followed by intensity-modulated radiation therapy. 2 cycles of concurrent chemotherapy will be administered during the radiotherapy. Patients' treatment response will be evaluated with MRI examination after 27 fractions of radiotherapy. If the treatment response after 27 fractions of radiotherapy is complete remission, the participants will be randomized into reduced-dose radiotherapy group and conventional-dose radiotherapy group. If the treatment response after 27 fractions of radiotherapy is not complete remission, the participants will be assigned to the unenrolled group. All the participants in the unenrolled group will receive conventional-dose radiotherapy. After the radiotherapy, all the participants will receive 9 cycles of Camrelizumab immunotherapy. Besides, all the participants in the unenrolled group will also receive metronomic adjuvant capecitabine chemotherapy for 1 year. The prognosis, complication, and quality of life will be compared between the reduced-dose radiotherapy group and the conventional-dose radiotherapy group.

Interventions

1. IC phase of PD-1 blocking antibody: every 3 weeks × 3 cycles; 200 mg, day 1; start on day 1 of the first cycle IC and continue every 3 weeks for 3 cycles till the end of IC. 2. Adjuvant PD-1 blocking antibody: every 3 weeks × 9 cycles; 200 mg, day 1.

DRUGGemcitabine

Gemcitabine as induction chemotherapy, 1000 mg/m2 day 1, 8 per cycle, every 3 weeks for 3 cycles.

DRUGCisplatin (80 mg/m2)

Cisplatin as induction chemotherapy, 80 mg/m2 day 1 per cycle, every 3 weeks for 3 cycles.

RADIATIONReduced-dose Intensity-modulated radiotherapy

1. Definitive IMRT, 30 fractions, 5 fractions/week, 1 fraction/day 2. Radiotherapy dose: pGTV: 6360cGy/30F; pCTV1: 5460cGy/30F; pCTV2: 4920cGy/30F.

RADIATIONConventional-dose Intensity-modulated radiotherapy

1. Definitive IMRT, 33 fractions, 5 fractions/week, 1 fraction/day 2. Radiotherapy dose: pGTV: 6996cGy/33F; pCTV1: 6006cGy/33F; pCTV2: 5412cGy/33F.

DRUGCisplatin (100 mg/m2)

Cisplatin as concurrent chemotherapy, 100 mg/m2 day 1 per cycle, every 3 weeks for 2 cycles

DRUGCapecitabine

Metronomic adjuvant capecitabine chemotherapy: 650 mg/m2 p.o. bid, 1 year, adminstration starts immediately after concurrent chemoradiotherapy.

Sponsors

Sun Yat-sen University
Lead SponsorOTHER
Jiangsu Hengrui Pharmaceutical Co., Ltd.
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

1. Age: 18 Years to 65 Years; 2. Eastern Cooperative Oncology Group performance status ≤1; 3. Patients with newly diagnosed, histologically confirmed nasopharyngeal carcinoma, the pathological type is non-keratinising carcinoma; 4. Tumor staged as Stage III (T3N0 Excepted; AJCC 8th); 5. Patients' lymph node without adverse features (no central necrosis, no muscle/skin invasion, no lymph node fusion); 6. Normal bone marrow function: white blood cell count \> 4×10\^9/L, hemoglobin \> 90g/L, platelet count \> 100×10\^9/L; 7. Normal liver and kidney function: total bilirubin ≤ 1.5 × upper limit of normal (ULN), alanine transaminase and aspartate transaminase ≤ 2.5 × ULN, alkaline phosphatase ≤ 2.5 × ULN, creatinine clearance rate ≥ 60 ml/min; 8. Receive 3 cycles of indction chemotherapy (GP regimen + Camrelizumab); 9. Plasma EBV DNA after the second cycle of concurrent chemotherapy: negative; 10. Complete remission after 27 fractions of radiotherapy based on the MRI examination of the nasopharynx and neck (According to Response Evaluation Criteria in Solid Tumors 1.1); 11. Patients must sign informed consent and be willing and able to comply with the requirements of visits, treatment, laboratory tests and other research requirements stipulated in the research schedule; 12. Subjects with pregnancy ability must agree to use reliable contraceptive measures from screening to 1 year after treatment.

Exclusion criteria

1. Hepatitis B virus surface antigen (HBsAg) positive and Hepatitis B virus DNA \> 1000 copies/ml; 2. Anti-hepatitis C virus positive; 3. Anti-human immunodeficiency virus (HIV) positive or diagnosed with acquired immune deficiency syndrome (AIDS); 4. Active tuberculosis: active tuberculosis in the past 1 year should be excluded regardless with treatment, history of active tuberculosis over 1 year should be excluded except that previous regulatory anti-tuberculosis treatment is proved; 5. Active, known or suspected autoimmune disease (including but not limited to uveitis, enteritis, hepatitis, pituitary, nephritis, vasculitis, hyperthyroidism, hypothyroidism and asthma requiring bronchiectasis). Exceptions are type I diabetes mellitus, hypothyroidism requiring hormone replacement therapy, skin disorders requiring no systemic treatment (such as vitiligo, psoriasis or alopecia); 6. Previous interstitial lung disease or pneumonia requiring oral or intravenous steroid therapy; 7. Chronic treatment with systemic glucocorticoid (dose equivalent to or over 10 mg prednisone per day) or any other form of immunosuppressive therapy. Subjects who used inhaled or topical corticosteroids were eligible; 8. Uncontrolled heart disease, for example: 1) heart failure (NYHA level ≥ 2), 2) unstable angina, 3) myocardial infarction in past 1 year, 4) supraventricular or ventricular arrhythmia requiring treatment or intervention; 9. Active infection requiring systemic treatment; 10. Previous or concurrent with other malignant tumors, except for adequately treated non-melanoma skin cancer, cervical carcinoma in situ and thyroid papillary cancer; 11. History of radiotherapy, except for non-melanoma skin cancer located outside the target volume of radiotherapy for nasophayngeal carcinoma; 12. Receive treatment for the local or regional disease other than that specified in the research plan; 13. Pregnant or lactating women (pregnancy test should be considered for women with sexual life and fertility); 14. Allergy to macromolecular protein preparations, or any component of Camrelizumab; 15. Receiving live vaccine within 30 days of the initial Camrelizumab; 16. Contraindications to MRI examination, for example: claustrophobia, allergy to MRI contrast; 17. History of psychotropic disease, alcoholism or drug abuse, and other situation assessed by the investigators that may compromise the safety or compliance of patients, such as serious disease requiring timely treatment (including mental illness), severe laboratory abnormalities, or family-social risk factors.

Design outcomes

Primary

MeasureTime frameDescription
Locoregional failure-free survival (LRFFS)3-yearLocoregional failure-free survival is measured from day of diagnosis until local or regional recurrence.

Secondary

MeasureTime frameDescription
Overall survival (OS)3 yearOverall survival is measured from day of diagnosis until death from any cause.
Failure-free survival (FFS)3 yearFailure-free survival is measured from day of diagnosis until local recurrence, regional recurrence, distant failure, or death from any cause, whichever occurred first.
Distant failure-free survival (DFFS)3 yearDistant failure-free survival is measured from day of diagnosis until distant failure.
Local failure-free survival (LFFS)3 yearLocal failure-free survival is measured from day of diagnosis until local recurrence.
Regional failure-free survival (RFFS)3 yearRegional failure-free survival is measured from day of diagnosis until regional recurrence.
Incidence rate of investigator-reported radiotherapy-related complicationsWithin (acute complication) / since (late complication) 90 days after the radiotherapy onset.
Incidence rate of patient-reported adverse events3 year
Quality of life (QoL): questionnaireRegular evaluation after 30 fractions of radiotherapy.

Countries

China

Contacts

CONTACTJun Ma
majun2@mail.sysu.edu.cn+862087343469
CONTACTKai-Bin Yang
yangkb@sysucc.org.cn+8613725368062
PRINCIPAL_INVESTIGATORJun Ma

Sun Yat-sen University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 7, 2026