PM8002 (BNT327) in Combination With Chemotherapy in Patients With Metastatic Colorectal Cancer

Not Applicable

Not yet recruiting

• Conditions: CRC (Colorectal Cancer)
• Interventions: Drug: PM8002; Drug: Chemotherapy Regimen 1; Drug: Chemotherapy Regimen 2

• Registration Number: NCT07133750
• Lead Sponsor: Biotheus Inc.

Brief Summary

PM8002 (BNT327) is a bispecific antibody targeting PD-L1 and VEGF. This is a phase II trial to evaluate the efficacy and safety of PM8002 in combination with chemotherapy in first line MSS or MSI-L/pMMR metastatic colorectal cancer.

Detailed Description

A multicenter, randomized, open-label study design is used, with a planned enrollment of 40 participants, 30 in the PM8002 (BNT327)+ chemotherapy regimen 1 group and 10 in the PM8002 (BNT327)+ chemotherapy regimen 2 group. The investigators make the decision on which chemotherapy regimen to be used in the participants. After combined chemotherapy regimen is confirmed, participants will be randomized to one of two dose levels of PM8002(BNT327) plus chemotherapy.

Study Timeline

• Study First Submitted: 2025-07-30
• Status Verified: 2025-08
• Study Start: 2025-08-01
• Study First Submitted QC: 2025-08-13
• Last Update Submitted: 2025-08-13
• Study First Posted: 2025-08-21
• Last Update Posted: 2025-08-21
• Primary Completion: 2026-08
• Study Completion: 2029-08-01

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 40

Inclusion Criteria

1. Signed informed consent form before any trial-related processes.
2. Age ≥ 18 years male or female.
3. Histologically or cytologically confirmed metastatic colorectal cancer (stage IV, UICC/AJCC staging system) that is not suitable for or cannot be radically resected surgically.
4. Participants must not have dMMR or MSI-H.
5. No prior systemic anti-tumor therapy for metastatic colorectal cancer.
6. have adequate organ function.
7. The investigator confirms at least one measurable lesion according to RECIST v1.1. A measurable lesion located in the field of previous radiation therapy or after local treatment may be selected as a target lesion if progression is confirmed.
8. The Eastern Cancer Cooperative Group (ECOG) performance score of 0 or 1.

Key

Exclusion Criteria

1. Received the following treatments or medications prior to starting study treatment:

   1. Received palliative local therapy, non-specific immunomodulatory therapy, or chineses herbal therapy with an anti-tumor indication within 14 days prior to study treatment.
   2. Treatment with systemic glucocorticoids (prednisone >10 mg/day or equivalent dose of other glucocorticoids) or other immunosuppressive agents within 14 days prior to initiation of study treatment. Note: treatment with local, intraocular, intra-articular, intranasal, and inhaled glucocorticosteroids and short-term prophylactic use of glucocorticoids (e.g., to prevent allergy to contrast agent) are allowed.

2. Have a major coagulation disorder or other evidence of significant bleeding risk.

3. Adverse effects of prior antitumor therapy have not returned to a CTCAE 5.0 grade rating of ≤ grade 1

4. Have a serious non-healing wound, ulcer, or bone fracture.

5. History of abdominal fistula, gastrointestinal perforation, or abdominal abscess, history of gastrointestinal obstruction, or clinical signs of gastrointestinal obstruction within 6 months prior to initiation of study treatment.

6. Severe uncontrollable intra-abdominal inflammation that requires clinical intervention, in the judgment of the investigator.

7. Have uncontrolled hypertension or poorly controlled diabetic conditions prior to study treatment.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Chemotherapy regimen 1 group - PM8002 Dose 1 + chemotherapy regimen 1	PM8002	Subjects will be administered with PM8002 (Dose 1) plus chemotherapy regimen 1 via intravenously (IV) Q2W until progression.
Chemotherapy regimen 1 group - PM8002 Dose 1 + chemotherapy regimen 1	Chemotherapy Regimen 1	Subjects will be administered with PM8002 (Dose 1) plus chemotherapy regimen 1 via intravenously (IV) Q2W until progression.
Chemotherapy regimen 1 group - PM8002 Dose 2 + chemotherapy regimen 1	Chemotherapy Regimen 1	Subjects will be administered with PM8002 (Dose 2) plus chemotherapy regimen 1 via intravenously (IV) Q2W until progression.
Chemotherapy regimen 2 group - PM8002 Dose 1 + chemotherapy regimen 2	PM8002	Subjects will be administered with PM8002 (Dose 1) plus chemotherapy regimen 2 via intravenously (IV) and oral administration (PO) Q3W until progression.
Chemotherapy regimen 2 group - PM8002 Dose 1 + chemotherapy regimen 2	Chemotherapy Regimen 2	Subjects will be administered with PM8002 (Dose 1) plus chemotherapy regimen 2 via intravenously (IV) and oral administration (PO) Q3W until progression.
Chemotherapy regimen 2 group - PM8002 Dose 2 + chemotherapy regimen 2	Chemotherapy Regimen 2	Subjects will be administered with PM8002 (Dose 2) plus chemotherapy regimen 2 via intravenously (IV) and oral administration (PO) Q3W until progression.
Chemotherapy regimen 1 group - PM8002 Dose 2 + chemotherapy regimen 1	PM8002	Subjects will be administered with PM8002 (Dose 2) plus chemotherapy regimen 1 via intravenously (IV) Q2W until progression.
Chemotherapy regimen 2 group - PM8002 Dose 2 + chemotherapy regimen 2	PM8002	Subjects will be administered with PM8002 (Dose 2) plus chemotherapy regimen 2 via intravenously (IV) and oral administration (PO) Q3W until progression.

Primary Outcome Measures

Name	Time	Method
Objective response rate (ORR)	Up to approximately 2 years	Objective response rate is the proportion of subjects with complete response (CR) or partial response (PR), based on RECIST v1.1.
Occurrence and severity of TEAE (treatment emergent adverse event), TRAE（treatment related adverse event）, TESAE (treatment emergent serious adverse event）, TRSAE (treatment related serious adverse event）	From the first dose of the investigational medicinal product (IMP) to the 30-day Follow-Up Visit	AEs are graded according to Common Terminology Criteria for Adverse Events (CTCAE) V5.0 in the combination treatment regimen.

Secondary Outcome Measures

Name	Time	Method
Progression free survival (PFS)	Up to approximately 2 years	Progression free survival is defined as the time from the start of treatment until the first documentation of disease progression or death due to any cause, whichever occurs first (based on RECIST v1.1).
Duration of response (DoR)	Up to approximately 2 years	DoR is defined as the duration from the first documentation of objective response to the first documented disease progression (based on RECIST v1.1) or death due to any cause, whichever occurs first.
Disease control rate (DCR)	Up to approximately 2 years	DCR is defined as the proportion of subjects with CR, PR, or stable disease(SD) based on RECIST v1.1.
Time to response (TTR)	Up to approximately 2 years	TTR is defined as the time from the start of the treatment to the first objective tumor response observed for patients who achieve CR or PR (based on RECIST v1.1).
Overall survival (OS)	Up to approximately 5 years	OS is the time from the date of randomization or first dosing date to death due to any cause.

Trial Locations

Locations (1)

Sun Yat-sen University Cancer Center; 🇨🇳 Guangzhou, Guangdong, China