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AK104 and Low-dose Radiation in Recurrent/Metastatic HNSCC After Failure of First-line Systemic Therapy

The Combination of AK104 and Low-dose Radiation Therapy in Recurrent/Metastatic Head and Neck Squamous Cell Carcinoma After Failure of First-line Systemic Therapy: a Phase II Study

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06494995
Enrollment
52
Registered
2024-07-10
Start date
2024-07-03
Completion date
2028-07-01
Last updated
2025-06-04

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

Conditions

Head and Neck Squamous Cell Carcinoma

Keywords

low-dose radiotherapy, low-dose radiation, cadonilimab, CTLA-4, PD-1, Stereotactic Body Radiation Therapy, Hybrid radiation, Immune modulation

Brief summary

Currently, there is a lack of high-quality clinical evidence for subsequent treatment options for recurrent/metastatic head and neck squamous cell carcinoma (HNSCC) after first-line treatment, especially for subsequent treatment after first-line therapy combined with PD-1 inhibitors. Increasing evidence suggests that low-dose radiation (LDRT) can reshape the tumor microenvironment.Cadonilimab is a bispecific antibody that specifically binds to CTLA-4 and PD-1 proteins in the human body. Considering that low-dose radiotherapy and cadonilimab both have immunomodulatory effects, this study intends to select recurrent metastatic HNSCC patients who have failed first-line and above treatment to explore the safety and efficacy of cadonilimab combined with low-dose radiotherapy.

Detailed description

Currently, there is a lack of high-quality clinical evidence for subsequent treatment options for recurrent/metastatic head and neck squamous cell carcinoma (HNSCC) after first-line treatment, especially for subsequent treatment after first-line therapy combined with PD-1 inhibitors. Increasing evidence suggests that low-dose radiation (LDRT) can reshape the tumor microenvironment, polarize macrophages towards M1, and M1 macrophages secrete chemokines to promote the recruitment of effector T cells while inducing vascular normalization. Cadonilimab is a bispecific antibody that specifically binds to CTLA-4 and PD-1 proteins in the human body. It is the first approved PD-1/CTLA-4 bispecific antibody. In June 2022, cadonilimab was approved by the NMPA for the treatment of recurrent or metastatic cervical cancer patients after platinum-based chemotherapy failure. The drug is currently undergoing clinical trials for other types of cancers, including non-small cell lung cancer, hepatocellular carcinoma, gastric cancer, esophageal cancer, and nasopharyngeal cancer. In view of the subsequent treatment strategies for recurrent metastatic HNSCC after first-line treatment progress, there is still a lack of high-level evidence-based medical evidence to confirm the best recommendation for subsequent treatment. Considering that low-dose radiotherapy and cadonilimab both have immunomodulatory effects, this study intends to select recurrent metastatic HNSCC patients who have failed first-line and above treatment to explore the safety and efficacy of cadonilimab combined with low-dose radiotherapy.

Interventions

DRUGCadonilimab

a PD-1/CTLA-4 dual antibody

Low-dose radiation

RADIATIONSBRT

selected leisions to treat with stereotactic radiotherapy

DRUGCapecitabine

Capecitabine metronomic chemotherapy

Sponsors

Fudan University
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Patients who signed the informed consent and were willing to complete the study according to the protocol; 2. Aged ≥18 years and ≤75 years; 3. Histologically confirmed head and neck squamous cell carcinoma or nasopharyngeal carcinoma; 4. Patients with recurrent and metastatic head and neck squamous cell carcinoma or nasopharyngeal carcinoma, with progression on first-line treatment or above; or locally advanced head and neck squamous cell carcinoma or nasopharyngeal carcinoma, with recurrence and metastasis within 6 months after radical radiotherapy; 5. For patients with locally recurrent head and neck squamous cell carcinoma or nasopharyngeal carcinoma, those who are not suitable for local treatment after multidisciplinary evaluation of head and neck tumors; 6. At least one measurable lesion before treatment, that is, meeting the measurable lesion requirement in the RECIST 1.1 standard; 7. Expected survival period\>3 months; 8. ECOG score 0-2 points; 9. Good organ function: meet the following requirements: 1. Absolute neutrophil count (ANC) ≥1.5×109/L; 2. Platelet count ≥100×109/L; 3. Hemoglobin ≥9g/dL; 4. Serum albumin ≥2.8g/dL; 5. Total bilirubin ≤1.5×ULN, ALT, AST and/or ALP ≤3×ULN; 6. Serum creatinine ≤1.5×ULN and creatinine clearance ≥60 mL/min (Cockcroft-Gault, see Appendix 3); 7. Activated partial thromboplastin time (APTT) and international normalized ratio (INR) ≤1.5× ULN (screening is allowed for patients who are taking stable doses of anticoagulant therapy such as low molecular weight heparin or warfarin and whose INR is within the expected therapeutic range of the anticoagulant); 10. Patients with hepatitis B virus (HBV) infection and inactive/asymptomatic HBV carriers, or patients with chronic or active HBV, will be allowed to enroll if HBV DNA \<500 IU/mL (or 2500 copies/mL) at screening. Patients with positive hepatitis C antibodies will be allowed to enroll if HCV-RNA is negative at screening. 11. Women of childbearing age need to have a negative urine or serum pregnancy test result within ≤7 days before treatment. And use a medically approved contraceptive method (such as intrauterine device, birth control pills or condoms) during the study treatment, at least 3 months after the last use of cadonilimab, and at least 6 months after the last use of chemotherapy; 12. Male subjects who are not sterilized must be willing to use a medically approved contraceptive method (such as intrauterine device, birth control pills or condoms) during the study treatment, at least 3 months after the last use of cadonilimab, and at least 6 months after the last use of chemotherapy.

Exclusion criteria

1. Patients who have received anti-CTLA-4 antibodies, or any other antibodies or drugs targeting T cell co-stimulation or checkpoint pathways, or small molecule tyrosine kinase inhibitors, including lenvatinib, anlotinib, apatinib, etc.; 2. Patients with symptoms of spinal cord compression, risk of pathological fracture, or emergency surgery and/or radiotherapy due to other medical needs; 3. Patients with a history of gastrointestinal perforation and/or fistula within 6 months before enrollment (if the gastrointestinal perforation or fistula has been surgically removed, enrollment is allowed); 4. Patients with necrotic lesions within 4 weeks before enrollment, or tumors directly invading the trachea, bronchus, esophagus, or arteries, and who are judged by the investigator to have a risk of major bleeding; 5. Patients with other malignant tumors in the past or at the same time (except for malignant tumors that have been cured and have survived without cancer for more than 3 years, such as basal cell carcinoma of the skin, carcinoma in situ of the cervix, and papillary thyroid carcinoma); 6. Uncontrolled clinical symptoms or diseases of the heart, such as: a. NYHA heart failure of grade II or above; b. Unstable angina pectoris; c. Myocardial infarction within 1 year; d. Patients with clinically significant supraventricular or ventricular arrhythmias requiring clinical intervention; 7. Received any of the following treatments: 1. Received any research drug within 4 weeks before the first use of the study drug; 2. Enrolled in another clinical study at the same time, unless it is an observational (non-interventional) clinical study; 3. Subjects who need to be given corticosteroids (daily prednisone equivalent dose of \>10 mg) or other immunosuppressants for systemic treatment within 2 weeks before the first use of the study drug, except for the use of corticosteroids for local inflammation and prevention of allergies, nausea and vomiting. Other special cases need to be communicated with the investigator. In the absence of active autoimmune diseases, inhaled or topical steroids and adrenocortical hormone replacement at a dose of \>10 mg/day prednisone are allowed; 4. Patients who have received anti-tumor vaccines or have received vaccines (including live vaccines or inactivated vaccines) within 4 weeks before the first administration of the study drug; 5. Patients who have undergone major surgery or severe trauma within 4 weeks before the first use of the study drug; 8. The toxicity of previous anti-tumor treatment has not recovered to ≤CTCAE grade 1 (except for sequelae of alopecia and neurotoxicity related to previous platinum treatment) or the level specified by the inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Objective Response RateUp to two yearsObjective Response Rate (ORR), as assessed by investigators according to RECIST 1.1 criteria. For patients who have received radiotherapy for all lesions, the ORR assessment should be based on the lesions that received SBRT and low-dose radiotherapy. For patients with lesions that did not receive radiotherapy, the ORR assessment should be based on the lesions that received SBRT, low-dose radiotherapy, and those that did not receive radiotherapy

Secondary

MeasureTime frameDescription
Adverse effectUp to two yearsAdverse effects (AE) as evaluated by CTCAE 5.0
Disease Control RateUp to two yearsDisease Control Rate (DCR), as assessed by investigators according to RECIST 1.1 criteria
Duration of ResponseUp to two yearsDuration of Response (DoR), as assessed by investigators according to RECIST 1.1 criteria
Progression-free survivalUp to two yearsProgression-free survival (PFS): from the start of enrollment to the first recorded date of objective tumor progression or death from any cause, whichever occurs first.
Overall survivalUp to two yearsOverall survival (OS): the time from enrollment to death due to any cause.

Countries

China

Contacts

Primary ContactXiaomin Ou, M.D.
0456218@fudan.edu.cn+8621-64175590

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026