Paclitaxel Polymersomes + Carboplatin + Adebelimab: Neoadjuvant Phase Ⅱ Single-Arm Study for Resectable Mucosal Melanoma

NCT ID: NCT07336979

Last Updated: 2026-01-13

Basic Information

• Recruitment Status: RECRUITING
• Clinical Phase: PHASE2
• Total Enrollment: 32 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2025-03-20
• Study Completion Date: 2027-03-20

Brief Summary

The primary objective of this study is to evaluate the pathological response rate of neoadjuvant therapy with paclitaxel polymersomes for injection combined with carboplatin and adebrelimab in patients with resectable mucosal melanoma.Subjects will receive the combination therapy of paclitaxel polymersomes for injection, carboplatin and adebrelimab prior to surgery, with a treatment cycle of 3 weeks and a total of 3 cycles.After completing 3 cycles of treatment, subjects will undergo curative surgery. Pathologists will evaluate the surgically resected specimens to determine the status of pathological response, and immunohistochemical assays will be performed to assess the intensity of immune activation within the tumor microenvironment.

Conditions

Resectable Mucosal Melanoma

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Paclitaxel Polymersomes Combined with Carboplatin and Adebelimab

Group Type: EXPERIMENTAL

Paclitaxel Polymersomes Combined with Carboplatin and Adebelimab

Intervention Type: DRUG

Chemotherapeutic agents are administered on Day 1 of each cycle: paclitaxel polymersomes for injection is given first, followed by carboplatin.Adebelimab injection is administered on Day 2 of each cycle.Patients will receive a maximum of 3 cycles of neoadjuvant chemotherapy combined with immunotherapy before surgery.Patients who are evaluated as resectable 3 weeks after the last cycle of chemotherapy will undergo radical surgery.

Radical Surgery

Intervention Type: PROCEDURE

Chemotherapeutic agents are administered on Day 1 of each cycle: paclitaxel polymersomes for injection is given first, followed by carboplatin.Adebelimab injection is administered on Day 2 of each cycle.Patients will receive a maximum of 3 cycles of neoadjuvant chemotherapy combined with immunotherapy before surgery.Patients who are evaluated as resectable 3 weeks after the last cycle of chemotherapy will undergo radical surgery.

Interventions

Paclitaxel Polymersomes Combined with Carboplatin and Adebelimab

Chemotherapeutic agents are administered on Day 1 of each cycle: paclitaxel polymersomes for injection is given first, followed by carboplatin.Adebelimab injection is administered on Day 2 of each cycle.Patients will receive a maximum of 3 cycles of neoadjuvant chemotherapy combined with immunotherapy before surgery.Patients who are evaluated as resectable 3 weeks after the last cycle of chemotherapy will undergo radical surgery.

Intervention Type: DRUG

Radical Surgery

Chemotherapeutic agents are administered on Day 1 of each cycle: paclitaxel polymersomes for injection is given first, followed by carboplatin.Adebelimab injection is administered on Day 2 of each cycle.Patients will receive a maximum of 3 cycles of neoadjuvant chemotherapy combined with immunotherapy before surgery.Patients who are evaluated as resectable 3 weeks after the last cycle of chemotherapy will undergo radical surgery.

Intervention Type: PROCEDURE

Eligibility Criteria

Inclusion Criteria

1. Age ≥ 18 years old.

2. Histopathologically confirmed resectable mucosal melanoma.

3. Subjects must provide 5 formalin-fixed paraffin-embedded (FFPE) tissue sections collected before treatment, or be willing to undergo needle biopsy for pathological tissue acquisition to facilitate pathological assessment.

4. ECOG (Performance Status, PS) score of 0-1.

5. No prior treatment with immune checkpoint inhibitors such as anti-CTLA-4, anti-PD-1, or anti-PD-L1 monoclonal antibodies.

6. No prior treatment with taxane-based drugs.

7. Presence of measurable lesions (per RECIST 1.1 criteria).

8. No history of immunosuppressant use within 6 months prior to enrollment.

9. Hematological and biochemical test results meeting the following criteria:

i. Neutrophil count ≥ 1,500 × 10⁹/L; ii. Platelet count ≥ 100 × 10⁹/L; iii. Hemoglobin > 9.0 g/dL; iv. Serum creatinine ≤ 1.5 × upper limit of normal (ULN) or creatinine clearance (CrCl) ≥ 40 mL/min; v. Aspartate aminotransferase (AST)/Alanine aminotransferase (ALT) ≤ 3 × ULN; vi. Total bilirubin ≤ 1.5 × ULN.

10. Women of childbearing potential must have a negative serum or urine pregnancy test and agree to use an appropriate contraceptive method (barrier contraception or oral contraceptives).

Exclusion Criteria

1. Presence of distant metastatic lesions.

2. Active autoimmune disease. Note: Patients with vitiligo, type 1 diabetes mellitus, or Hashimoto's thyroiditis with hypothyroidism who only require hormone replacement therapy may be enrolled if there is no evidence of significant disease recurrence.

3. Need for systemic corticosteroid therapy (> 10 mg prednisolone [or equivalent]/daily) or other immunosuppressant use within 14 days after enrollment. Note: Inhaled or topical corticosteroids, or adrenal hormone replacement therapy (> 10 mg prednisolone [or equivalent]/daily) are acceptable for patients without obvious autoimmune diseases.

4. Concurrent diagnosis of other malignant tumors requiring anti-tumor treatment. Note: Patients may be considered for enrollment if the other malignant tumor has achieved complete remission for 2 years or more and no additional anti-tumor treatment is required during the study period.

5. Patients who are medically, psychologically, or physically unable to complete the study or understand the information provided in the patient brochure, as assessed by the investigator.

6. Prior treatment with anti-PD-1, anti-PD-L1, anti-PD-L2, anti-CTLA-4, or other drugs targeting T-cell costimulatory or immune regulatory pathways.

7. Prior chemotherapy with taxane-based drugs.

8. Positive HIV test result or confirmed diagnosis of acquired immunodeficiency syndrome (AIDS).

9. Known hypersensitivity to the study drugs.

10. Pregnant or lactating women.

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Sun Yat-sen University

OTHER

Sponsor Role: lead

Responsible Party

xizhi wen

Principal Investigator

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Sun Yat-sen University Cancer Center

Guangzhou, Guangdong, China

Site Status: RECRUITING

Countries

China

Central Contacts

xizhiwen wen

Role: CONTACT

wenxz@sysucc.org.cn

+8602087343381

Facility Contacts

xizhiwen wen

Role: primary

wenxz@sysucc.org.cn

+8602087343381

Other Identifiers

B2024-799-01

Identifier Type: -

Identifier Source: org_study_id