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JSKN033 Combination Therapy in Subjects With Advanced Cervical Cancer

A Phase II Study to Evaluate the Safety, Efficacy, Pharmacokinetics/Pharmacodynamics of JSKN033 in Combination With Platinum-Based Chemotherapy With or Without Bevacizumab in Patients With Advanced Cervical Cancer

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07497074
Enrollment
78
Registered
2026-03-27
Start date
2026-04-01
Completion date
2028-06-01
Last updated
2026-03-27

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

Conditions

Cervical Cancer

Keywords

JSKN033, PD-L1, Antibody-Drug Conjugates

Brief summary

The goal of this clinical trial is to learn if the therapy of JSKN033 plus chemotherapy with or with bevacizumab is safe to treat patients with advanced cervical cancer. It will also learn about the antitumor activity and pharmacokinetic/ pharmacodynamic profiles of this therapy.

Detailed description

This is an open-label, multicenter, Phase II clinical study conducted in China to evaluate the safety and efficacy of JSKN033 in combination with platinum-based chemotherapy with or without bevacizumab in patients with advanced cervical cancer. The study consists of two phases: a safety run-in phase and a dose expansion phase. Enrolled subjects are patients with persistent, recurrent, or metastatic cervical cancer who have not received prior systemic therapy for recurrent or metastatic disease. All subjects will receive treatment with JSKN033 + cisplatin/carboplatin ± bevacizumab. All enrolled subjects will continue treatment until meeting any of the following treatment termination criteria: disease progression, intolerable toxicity, initiation of new anti-tumor therapy, withdrawal of informed consent, loss to follow-up, death, early study termination, or other criteria specified in the protocol for treatment termination, whichever occurs first.

Interventions

JSKN033 in combination with platinum-based chemotherapy with or without bevacizumab at selected dose levels according to protocol

JSKN033 in combination with platinum-based chemotherapy with or without bevacizumab at selected dose levels according to protocol

DRUGBevacizumab

JSKN033 in combination with platinum-based chemotherapy with or without bevacizumab at selected dose levels according to protocol

Sponsors

Jiangsu Alphamab Biopharmaceuticals Co., Ltd
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Voluntarily participate and sign the informed consent form. 2. Age ≥ 18 years old, male or female. 3. Eastern Cooperative Oncology Group performance status (ECOG PS) score of 0 or 1. 4. Expected survival ≥ 3 months. 5. Histologically or cytologically confirmed persistent, recurrent, or metastatic (FIGO stage IVB) cervical cancer unsuitable for curative surgery and/or curative radiotherapy, meeting the following criteria: 1. Pathological types include squamous cell carcinoma, adenocarcinoma, or adenosquamous carcinoma; 2. No prior systemic therapy for recurrent or metastatic cervical cancer. 6. At least one measurable lesion per RECIST 1.1 at baseline. 7. Agree to provide recently archived or fresh tumor tissue samples. 8. Adequate organ function. 9. Female subjects of childbearing potential or male subjects whose partners are of childbearing potential agree to use effective contraceptive measures. Female subjects of childbearing potential must have a negative serum/urine pregnancy test within 7 days before the first dose. 10. Be able and willing to comply with the visits, treatment plans, laboratory tests, and other study-related procedures specified in the study protocol.

Exclusion criteria

1. Complicated with other malignant tumors within 3 years before the first dose, except for tumor types that have achieved clinical cure through local treatment with extremely low recurrence risk. 2. History of brainstem, meningeal metastasis, spinal cord metastasis or compression, or carcinomatous meningitis; presence of active brain metastasis. 3. Screening imaging shows tumor invasion, compression, or occurrence in surrounding important organs or risk of esophagotracheal fistula or esophagopleural fistula, except those judged by the investigator and medical monitor to not affect the patient's enrollment and administration. 4. Prior treatment with topoisomerase I inhibitors or antibody-drug conjugates containing topoisomerase I inhibitors. 5. Inadequate washout period of previous therapy. 6. Presence of the risk factors related to interstitial lung disease (ILD) or non-infectious pneumonia: 7. Presence of clinically severe respiratory impairment caused by pulmonary disease complications. 8. Presence of cardiovascular and cerebrovascular diseases or cardiovascular and cerebrovascular risk factors. 9. Gastrointestinal abnormalities with obvious clinical manifestations. 10. Significant serous effusion. 11. Active autoimmune diseases requiring systemic treatment. 12. Uncontrolled infection. 13. Toxicity of previous anti-tumor treatment has not fully or partially recovered. 14. History of allogeneic bone marrow or organ transplantation. 15. Known allergy to any component of the study drug/platinum, or history of severe allergic reactions to other antibody drugs. 16. Pregnant and/or lactating women, or planning to become pregnant during the study period. 17. Known history of mental illness, substance abuse, alcoholism, etc., or other situations that the investigator deems may affect the safety or compliance of the study drug treatment. 18. Any other previous or current diseases, treatments, or laboratory test abnormalities that the investigator deems may confuse the study results, affect the patient's full participation in the study, or participation in the study may not be in the best interest of the patient. 19. Local or systemic diseases caused by non-malignant tumors, or diseases or symptoms secondary to tumors, which may lead to high medical risks and/or uncertainty in survival assessment, such as tumor-related leukemia reaction (white blood cell count \> 20×10⁹/L), cachexia manifestations, etc. 20. Known contraindications to bevacizumab or allergy to its components, or the medical conditions affecting its safe use (Note: Applicable only to subjects planned to receive bevacizumab).

Design outcomes

Primary

MeasureTime frame
Frequency and severity of Treatment-Emergent Adverse Events (TEAEs)21 days from the first dose
Frequency and severity of Treatment-Related Adverse Events (TRAEs)21 days from the first dose
Frequency and severity of Serious Adverse Events (SAEs)21 days from the first dose
Objective Response Rate (ORR) as assessed by the investigator and IRC per RECIST 1.1.From the first study drug dose, until: disease progression per RECIST 1.1; initiation of new anti-tumor treatment; withdrawal of informed consent; death; loss to follow-up; or study termination, whichever comes first. Assessed at approximately 12 months.

Secondary

MeasureTime frame
Disease Control Rate (DCR)From the first study drug dose, until: disease progression per RECIST 1.1; initiation of new anti-tumor treatment; withdrawal of informed consent; death; loss to follow-up; or study termination, whichever comes first. Assessed at approximately 12 months.
Time to Response (TTR)From the first study drug dose, until: disease progression per RECIST 1.1; initiation of new anti-tumor treatment; withdrawal of informed consent; death; loss to follow-up; or study termination, whichever comes first. Assessed at approximately 12 months
Duration of Response (DoR)From the first study drug dose, until: disease progression per RECIST 1.1; initiation of new anti-tumor treatment; withdrawal of informed consent; death; loss to follow-up; or study termination, whichever comes first. Assessed at approximately 24 months.
Progression-Free Survival (PFS) as assessed by the investigator and IRC per RECIST 1.1From the first study drug dose, until: disease progression per RECIST 1.1; initiation of new anti-tumor treatment; withdrawal of informed consent; death; loss to follow-up; or study termination, whichever comes first. Assessed at approximately 24 months.
Overall Survival (OS)Assessed at approximately 24 months
Maximum plasma concentration (Cmax) of JSKN033From the enrollment until the end of study. Assessed up to 24 months.
Time to Cmax (Tmax) of JSKN033From the enrollment until the end of study. Assessed up to 24 months.
Trough concentration (Ctrough) of JSKN033From the enrollment until the end of study. Assessed up to 24 months.
Area under the plasma concentration-time curve of JSKN033From the enrollment until the end of study. Assessed up to 24 months.
Volume of distribution (Vz/F) of JSKN033From the enrollment until the end of study. Assessed up to 24 months.
Elimination half-life (t1/2) and clearance (CL/F) of JSKN033From the enrollment until the end of study. Assessed up to 24 months.
Accumulation index of JSKN033From the enrollment until the end of study. Assessed up to 24 months.
Mean residence time of JSKN033From the enrollment until the end of study. Assessed up to 24 months.
Incidence of anti-drug antibodies (ADA) of JSKN033From the enrollment until the end of study. Assessed up to 24 months.

Countries

China

Contacts

CONTACTChunyan Lan, Dr.
lanchy@sysucc.org.cn086-020-87343009

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 28, 2026