A Study of CM350 in Patients With Advanced Solid Tumors

NCT05263960 | Recruiting Phase 1

• 1 other identifier: CM350-030001
• Study Type: interventional
• Target: 248
• Locations: 1 country
• Sites: 2

Brief Summary

This is an open label, dose escalation and expansion Phase I/II study to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, immunogenicity, and preliminary efficacy of CM350 in patients with advanced solid tumors. The phase I study consists of a dose escalation phase and a dose expansion phase The safety and tolerability of CM350 and the maximum tolerated dose (MTD) (if applicable) will be evaluated in dose escalation phase. The recommended phase 2 dose (RP2D) of CM350 will be determined in dose expansion phase. The phase II study is to evaluate the efficacy of CM350 at the recommended phase 2 dose (RP2D) for advanced glypican-3 (GPC3)-positive solid tumors.

Conditions

Advanced Solid Tumor

Outcome Measures

Primary Outcomes (5)

• Dose escalation phase in phase I:Incidence of Adverse events（AEs）, including any abnormal physical examinations, abnormal vital signs, abnormal ECG, and abnormal lab testing.

  Incidence of Adverse events（AEs）, including any abnormal physical examinations, abnormal vital signs, abnormal ECG, and abnormal lab testing.

  Up to 5 years

• Dose escalation phase in phase I:Dose-Limiting Toxicity (DLT).

  Dose-Limiting Toxicity (DLT).

  Up to 7 days after the first target dose

• Dose escalation phase in phase I:Maximum tolerated dose (MTD) (if applicable).

  Maximum tolerated dose (MTD) (if applicable).

  Up to the end of dose escalation phase (3 years)

• Dose expansion phase in phase I:To determine the recommended Phase 2 Dose (RP2D).

  the efficacy including objective response rate (ORR), disease control rate (DCR), etc., safety, pharmacokinetics (PK) and pharmacodynamics (PD) profile of CM350 will be assessed.

  Up to 5 years

• Phase II:To evaluate the efficacy of CM350 in advanced glypican-3-positive solid tumors.

  including objective response rate (ORR) per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 (Modified Response Evaluation Criteria in Solid Tumors \[mRECIST\] for liver cancer and RECIST v1.1) evaluated by investigator.

  Up to 5 years

Secondary Outcomes (22)

• Phase I & Phase II: Area Under the Curve from 0 to the time of the last quantifiable concentration (AUC0-t).

  Up to 5 years

• Phase I & Phase II: To assess the incidence of anti-drug antibody (ADA).

  Up to 5 years

• Phase I: To evaluate the objective response rate (ORR) per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 [Modified Response Evaluation Criteria in Solid Tumors (mRECIST) for liver cancer and RECIST v1.1].

  Up to 5 years

• Phase I & Phase II: To evaluate the duration of response (DOR) per RECIST v1.1(mRECIST for liver cancer and RECIST v1.1).

  Up to 5 years

• Phase I & Phase II: To evaluate the disease control rate (DCR) per RECIST v1.1(mRECIST for liver cancer and RECIST v1.1).

  Up to 5 years

Study Arms (3)

Dose escalation phase in phase I

EXPERIMENTAL

There are 11 target dose levels in dose escalation phase.

Biological: CM350 group1

Dose expansion phase in phase I

EXPERIMENTAL

Three or four doses will be selected for further evaluation in dose expansion phase to determine the RP2D (recommended phase 2 dose).

Biological: CM350 group2

Phase II

EXPERIMENTAL

The efficacy of CM350 will be evaluated at RP2D (recommended phase 2 dose) for advanced GPC3-positive solid tumors.

Biological: CM350 group3

Interventions

CM350 group1 BIOLOGICAL

CM350 will be administered intravenously (IV) once a week (QW) through step-up dosing until the participant discontinues study treatment, develops disease progression, initiates a new anti-tumor therapy, develops unacceptable toxicity, death, lost to follow-up, the investigator discontinue study treatment, or a female participant becomes pregnant (whichever occurs first).

Dose escalation phase in phase I

CM350 group2 BIOLOGICAL

CM350 will be administered intravenously (IV) once a week (QW) through step-up dosing until the participant discontinues study treatment, develops disease progression, initiates a new anti-tumor therapy, develops unacceptable toxicity, death, lost to follow-up, the investigator discontinue study treatment, or a female participant becomes pregnant (whichever occurs first).

Dose expansion phase in phase I

CM350 group3 BIOLOGICAL

CM350 will be administered intravenously (IV) once a week (QW). Individual subjects may continue study treatment until the participant discontinues study treatment, develops disease progression, initiates a new anti-tumor therapy, develops unacceptable toxicity, death, lost to follow-up, the investigator discontinue study treatment, or a female participant becomes pregnant (whichever occurs first).

Phase II

Eligibility Criteria

• Age: 18 Years - 75 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Patient with histologically or cytologically confirmed advanced solid tumors that is refractory to or intolerable with standard treatment, or for which no standard treatment is available.
• hepatocellular-cancer(HCC) participants must have a Barcelona Clinic Liver Cancer (BCLC) stage of B (ineligible for liver surgery and/or other locoregional treatments, or disease progression after locoregional therapy) or stage C , or a China National Liver Cancer (CNLC) stage of IIb or III (ineligible for liver surgery and/or other locoregional treatments, or disease progression after locoregional therapy).
• HCC participants must have a Child-Pugh score of ≤7.
• Phase I dose escalation phase: participants must have evaluable lesions based on RECIST version 1.1.Phase I dose expansion phase and phase II: participants must have at least one measurable lesion.
• Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.

You may not qualify if:

• Patients who have received any cytotoxic chemotherapy, radiotherapy, biological therapy (oncologic vaccines, cytokines, or growth factors for cancer control), or any other investigational anticancer drug treatment (defined as treatments without regulatory approval for any indication) within 28 days before the first dose of CM350.
• Note: For palliative radiotherapy to non-central nervous system lesions (total radiotherapy duration ≤14 days) to improve symptoms, a minimum washout period of 7 days before the first dose is required.
• Patients who have received any immunotherapy (including but not limited to PD-1, PD-L1, anti-cytotoxic T-lymphocyte-associated antigen 4 \[CTLA-4\], chimeric antigen receptor T-cell \[CAR-T\] therapy, etc.) within 28 days or 5 half-lives (whichever is shorter) before the first dose of CM350.
• Patients who have received targeted therapy within 28 days or 5 half-lives (whichever is shorter) before the first dose of CM350.
• Patients who have previously received any therapy targeting GPC3, including but not limited to monoclonal antibodies, peptide vaccines, CAR-T, and bispecific antibodies.
• Received chronic systemic corticosteroid therapy (daily intake of more than 10 mg prednisone or equivalent doses of other corticosteroids) or any other form of immunosuppressive treatment within 7 days before the first dose of CM350.
• Known active central nervous system metastases. Note: Participants with previously treated brain metastases that have been stable for at least 14 days before the first dose (confirmed by repeat imaging at least 4 weeks apart, with the repeat imaging conducted during the screening period) may be considered for enrollment.
• Participants with uncontrolled pleural effusion, ascites, or pericardial effusion as assessed by the investigator.
• History of other malignancies within 5 years before the first dose of CM350, excluding cured basal cell or squamous cell carcinoma of the skin, cervical carcinoma in situ, or ductal carcinoma in situ of the breast.
• Presence of active infection at screening as assessed by the investigator.

Sponsors & Collaborators

• Keymed Biosciences Co.Ltd: lead

Study Sites (2)

West China Hospital of Sichuan University

Chengdu, Sichuan, China

RECRUITING

Zhongshan Hospital Affiliated to Fudan University

Shanghai, China

RECRUITING

Study Officials

• Jia Fan

  Shanghai Zhongshan Hospital

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Qian Jia

CONTACT

+862888610620; qianjia@keymedbio.com

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SEQUENTIAL
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: February 10, 2022
• First Posted: March 3, 2022
• Study Start: April 21, 2022
• Primary Completion (Estimated): April 1, 2027
• Study Completion (Estimated): April 1, 2027
• Last Updated: May 4, 2025

Record last verified: 2025-04

Locations

CN (2)