SYS6040 injection for patients with advanced solid tumors

An Open-lable, Multicenter Phase I Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetic Profile and Preliminary Efficacy of SYS6040 for Injection as a Single Agent in Participants With Advanced Solid Tumors

This study is testing a new injection called SYS6040 to see if it is safe and effective for people with advanced solid tumors who haven't had success with other treatments.

Quick facts

• Phase: PHASE1
• Study type: Interventional
• Enrollment: 180 (estimated)
• Ages: 18 Years and up
• Sex: All
• Sponsor: CSPC Megalith Biopharmaceutical Co.,Ltd. (industry)
• Drugs / interventions: chemotherapy, immunotherapy, prednisone
• Locations: 1 site (Changchuan, Jilin)
• Trial ID: NCT06970795 on ClinicalTrials.gov

What this trial studies

This Phase I clinical trial evaluates SYS6040 for injection in patients with advanced solid tumors, focusing on safety, tolerability, pharmacokinetics, and preliminary efficacy. The study consists of two phases: a dose escalation phase using a BOIN design and a cohort expansion phase. Participants will receive SYS6040 via intravenous infusion in predefined dose groups, with treatment cycles lasting 21 days. The trial aims to enroll subjects who have failed or are intolerant to standard therapies.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older with advanced solid tumors who have failed or are intolerant to standard therapies.

Not a fit: Patients with early-stage tumors or those who have not yet undergone standard treatment may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with advanced solid tumors who have limited treatment choices.

How similar studies have performed: Other studies exploring similar investigational therapies have shown promise, but this specific approach with SYS6040 is novel.

Eligibility criteria

Inclusion Criteria:

1）Aged ≥18 years; 2) Subjects with histologically or cytologically confirmed advanced solid tumors who have failed standard therapy, are intolerant to standard therapy, or have no options of standard of care. During cohort expansion, subjects will be enrolled as follows: Cohort 1: SCLC subjects who failed or were intolerant to at least one prior platinum-containing chemotherapy regimen; Cohort 2: Subjects with DLL3-positive malignant solid tumors who failed standard therapy, are intolerant to standard therapy, or have no options of standard of care.

3\) At least one measurable lesion per Response Evaluation Criteria in Solid Tumors (RECIST v1.1); 4) ECOG score of 0 or 1; 5) Life expectancy ≥3 months; 6) Laboratory parameters meeting the following criteria:

1. Neutrophil count ≥1.5×109/L;
2. Platelet count ≥100×109/L;
3. Hemoglobin ≥9 g/dL;
4. Total bilirubin ≤1.5×ULN, ALT and AST ≤2.5×ULN (In cases with liver metastases: total bilirubin ≤3×ULN and ALT/AST ≤5×ULN);
5. Serum creatinine ≤1.5×ULN or creatinine clearance ≥60 mL/min;
6. International Standardized Ratio (INR) or activated partial thromboplastin time (APTT) ≤1.5×ULN.

a. Fertile males and females must use reliable contraception throughout the study period and for 9 months after the last dose. Females aged 18-60 years must have negative blood pregnancy results within 7 days before the first dose.

7\) Understand and voluntarily sign the informed consent form (ICF).

Exclusion Criteria:

1. Having received systemic antitumor therapy within 4 weeks before first dose, including: Chemotherapy, macromolecular targeted therapy, antiangiogenic therapy, biotherapy, immunotherapy, radiotherapy (except palliative radiotherapy for bone metastasis pain relief), except:

   1. Oral fluorouracil agents and small molecule targeted drugs within 2 weeks before first dose or within 5 half-lives (whichever is longer);
   2. Traditional Chinese medicines with antitumor indications within 2 weeks before first dose.
2. Used or required to use strong CYP3A4 inhibitors/inducers within 2 weeks before first dose or during the study;
3. Previous treatment with antibody-drug conjugates (ADCs) containing topoisomerase I inhibitors as payload;
4. Having received systemic corticosteroid therapy (\>10 mg prednisone equivalent daily for \>7 days) or other immunosuppressants within 2 weeks before treatment initiation (inhaled/topical steroids or adrenal replacement therapy \>10 mg prednisone equivalent permitted without active autoimmune disease);
5. Having received transfusion, EPO, TPO, IL-11, G-CSF or GM-CSF therapy within 2 weeks before first dose;
6. Having used or required to use QT-prolonging/shortening drugs within 7 days before first dose or during C-QTc study period, or have risk factors for QT prolongation/arrhythmia (e.g., heart failure, hypokalemia, congenital long QT syndrome, family history of long QT syndrome, or unexplained sudden death in first-degree relatives \<40 years);
7. Severe cardiovascular/cerebrovascular disease history；
8. History of other primary malignancies (except cured localized tumors like basal cell carcinoma, squamous cell carcinoma of skin, superficial bladder cancer, carcinoma in situ of prostate/cervix/breast, or subjects with other primary tumors showing no recurrence for ≥5 years);
9. Clinically confirmed active pneumonia at screening or history of interstitial lung disease;
10. Uncontrolled serous effusions requiring frequent drainage or medical intervention at screening (e.g., pleural/peritoneal/pericardial effusions needing additional intervention within 2 weeks after initial treatment, excluding cytological examination);
11. Brain metastases or spinal cord compression at screening (except those completing local therapy with ≥4-week steroid discontinuation and stable imaging/neurological symptoms for ≥4 weeks before treatment initiation);
12. Severe unhealed wounds/ulcers/fractures, or major surgery within 4 weeks before first dose, or planned elective surgery during study;
13. Clinically confirmed active HBV or HCV.Active HBV definition: HBcAb or HBsAg positive with HBV DNA above ULN; Active HCV definition: HCV antibody positive with HCV RNA above ULN;
14. Active tuberculosis confirmed clinically, or TP-Ab positive, or HIV-Ab positive, or history of immunodeficiency diseases/organ transplantation/allogeneic hematopoietic stem cell transplantation;
15. Significant bleeding tendency within 4 weeks before first dose, investigator-assessed high-risk of gastrointestinal hemorrhage/hemoptysis, or congenital bleeding disorders/coagulopathy;
16. Active infection requiring medication or unexplained fever ≥38.5°C during screening;
17. History of psychotropic substance abuse, alcoholism, or drug addiction;
18. Pregnancy or lactation at screening;
19. Persistent adverse reactions from prior antitumor therapy not recovered to CTCAE v5.0 ≤Grade 1 or baseline (except alopecia/nail changes/other investigator-deemed non-safety concerns);
20. Investigator-determined ineligibility for study participation.

Where this trial is running

Changchuan, Jilin

• Jilin Cancer Hospital — Changchuan, Jilin, China (RECRUITING)

Conditions: Small Cell Lung Cancer, Other Advanced Solid Tumors