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SYS6010 vs Investigator's Choice of Monotherapy in Patients With Recurrent or Metastatic HNSCC

A Randomized, Controlled, Open-Label, Multicenter Phase 3 Trial Evaluating the Efficacy and Safety of SYS6010 Versus Investigator's Choice of Monotherapy in Patients With Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07758621
Enrollment
340
Registered
2026-08-11
Start date
2026-08-15
Completion date
2028-12-01
Last updated
2026-08-11

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

Brief summary

This study is a randomized, controlled, open-label, multicenter phase III clinical trial, which aims to evaluate the efficacy, safety of SYS6010 compared with monotherapy in participants with HNSCC.

Interventions

SYS6010 by intravenous (IV)

DRUGInvestigator's Choice of monotherapy

Investigator's choice of monotherapy means the therapy chosen by investigators to treat HNSCC including docetaxel (35 mg/m\^2 by IV on Day 1、8、15, every 28 days),methotrexate(40 mg/m\^2 by IV on Day 1、8、15, every 21 days), paclitaxel (80 mg/m\^2 by IV on Day 1、8、15, every 28 days) or cetuximab(400 mg/m\^2 by IV on C1D1, followed by 250 mg/m\^2 weekly).

Sponsors

CSPC Megalith Biopharmaceutical Co.,Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Eligible Participants in this trial will be randomized in a 1:1 ratio to one of two treatment arms

Eligibility

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

Inclusion criteria

1. Participantss aged 18-75 years (inclusive); 2. Patients with pathologically confirmed head and neck squamous cell carcinoma (HNSCC);. 3. Participants have failed of platinum-based chemotherapy and PD-(L)1 inhibitors; for participants who received platinum-based chemotherapy and PD-(L)1 inhibitors in the adjuvant/neoadjuvant setting, disease recurrence or progression must have occurred within 6 months after completion of that therapy; radiographically confirmed disease progression during or after the most recent treatment regimen; 4. Participants must have measurable disease according to RECIST (version 1.1); 5. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1; 6. Life expectancy of ≥ 3 months; 7. Adequate major organ function (hematology, renal, liver, and coagulation) as determined by laboratory tests performed within 7 days prior to randomization; 8. Sexually active fertile participants must agree to use methods of contraception during the study and at least 7 months after termination of study therapy and have a negative serum pregnancy test within 7 days prior to randomization; 9. Willing to participate in the study, understand the study procedures, and sign a written informed consent form.

Exclusion criteria

1. Pathologically confirmed patients with adenocarcinoma or sarcomatoid carcinoma etc.; 2. Active central nervous system metastases or leptomeningeal metastasis; 3. History of another malignancy within 3 years prior to randomization 4. Allergy to any component of SYS6010 or to humanized monoclonal antibodies,or to the control drugs (docetaxel, methotrexate, paclitaxel, cetuximab); 5. Prior treatment with TOP1(including ADCs); 6. Prior EGFR mAb therapy within 4 months prior to treatment; 7. Adverse events from prior antitumor therapy not recovered to Grade ≤ 1 per NCI-CTCAE v6.0; 8. Use of any of the medications or treatments within the specified washout period (prior to randomization ) 9. History of serious cardiovascular or cerebrovascular conditions within 6 months prior to randomization, including but not limited to: Severe arrhythmias (e.g., ventricular arrhythmias requiring clinical intervention, third-degree atrioventricular block, QTcF \> 470 ms) (Fridericia formula: QTcF = QT/RR0.33, RR = 60/heart rate). Myocardial infarction, unstable angina, aortic dissection, angioplasty, or coronary artery bypass surgery. NYHA class II or higher heart failure with LVEF \< 50%.Stroke or other grade ≥ 3 cardiovascular/cerebrovascular events. pulmonary embolism; 10. Imaging examination suggests tumor invasion of the cervical, thoracic, and abdominal great vessels; and the investigator assessed that there was no risk of bleeding. 11. Patients who have a history of ILD/non-infectious pneumonitis treated with corticosteroids in the past, currently have ILD/non-infectious pneumonitis, for whom imaging examinations at screening cannot rule out ILD/non-infectious pneumonitis, 12. Severe infection within 4 weeks prior to randomization, such as bacteremia requiring hospitalization, severe pneumonia, or active pulmonary tuberculosis;active systemic infections requiring antibiotics within 2 weeks prior to randomization; 13. Previous permanent discontinuation of EGFR-targeted therapy due to skin toxicity, or currently have skin diseases requiring oral or intravenous medication; 14. History of ulcerative colitis or Crohn's disease; 15. Pleural effusion or pericardial effusion requiring clinical intervention within 2 weeks prior to randomization; 16. Active HBV or HCV infection (hepatitis B surface antigen and/or hepatitis B core antibody positive and HBV DNA copies ≥ 1×10\^4 copies/mL or ≥ 2000 IU/mL, HCV antibody positive and HCV RNA above the lower limit of detection of the analytical procedure). Note: For HBsAg-positive patients, it is recommended to start antiviral therapy before randomization, nucleoside analogues are recommended, such as entecavir, tenofovir disoproxil; 17. History of immunodeficiency (including positive HIV test, other acquired or congenital immunodeficiency diseases), history of allogeneic stem cell or organ transplant; 18. Other conditions that the investigator deems unsuitable for participation in this clinical study (such as mental disorders, macular cystoid oedema, severe corneal disorders, uncontrolled or poorly controlled hypertension and diabetes mellitus, impaired oxygenation requiring continuous oxygen supplementation, etc.).

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rate (ORR) as assessed by IRC per RECIST v.1.1.Up to approximately 2 yearsObjective response rate is defined as the percentage of participants with a confirmed complete response (CR) or partial response (PR) per RECIST v.1.1.
Overall SurvivalUp to approximately 2 yearsOverall survival is defined as the time from the date of randomization to the date of death due to any cause. In the absence of confirmation of death, survival time will be censored at the last date the participant is known to be alive.

Secondary

MeasureTime frameDescription
Objective Response Rate (ORR) as assessed by investigatorsUp to approximately 2 yearsObjective response rate is defined as the percentage of participants with a confirmed complete response (CR) or partial response (PR) per RECIST v.1.1
Duration of Response (DOR)Up to approximately 2 yearsDOR is defined as the time from the date of the first confirmed objective response (CR or PR that is subsequently confirmed) to the date of the first documented disease progression (PD) per RECIST v1.1 or death from any cause, whichever occurs first.
Disease Control Rate (DCR)Up to approximately 2 yearsThe percentage of participants who experience a best response of CR, PR or stable disease (SD).
Progression Free Survival (PFS)Up to approximately 2 yearsPFS is defined as the time from the date of randomization to the first documentation of PD as assessed by investigator per RECIST v.1.1, or death due to any cause, whichever occurs earlier.
Incidence of adverse events assessed by CTCAE v6.0.Up to approximately 2 years
Incidence of Anti-Drug Antibody (ADA)Up to approximately 2 years
Plasma concentrations of toxin-bound antibodiesUp to approximately 2 yearsTests are conducted after single and continuous administration of SYS6010.
Plasma concentrations of total antibodiesUp to approximately 2 yearsTests are conducted after single and continuous administration of SYS6010.

Contacts

CONTACTClinical Trials Information Group officer
ctr-contact@cspc.cn031169085587
CONTACTKunyu Yang

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 12, 2026