Recruiting
Phase 1
Phase 2

EMB-01

Sponsor:

Shanghai EpimAb Biotherapeutics Co., Ltd.

Code:

NCT05176665

Conditions

Neoplasms

Neoplasm Metastasis

Metastatic Gastrointestinal Carcinoid Tumor

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Interventions

EMB-01

Study Details

Brief summary:

This study is to evaluate the safety and antitumor activity of EMB-01 in advanced/metastatic gastrointestinal cancers, including gastric cancer, hepatocellular cancer, cholangiocarcinoma and colorectal cancer.

Conditions

Neoplasms

Neoplasm Metastasis

Metastatic Gastrointestinal Carcinoid Tumor

Study ID

NCT05176665

Start date

Oct 21, 2021

Status verified date

Aug, 2024

Completion date

Dec 31, 2025

Anticipated

Primary completion date

Dec 31, 2025

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Inclusion Criteria:

Molecular Pre-screening Inclusion criteria

1. cMET amplification in tumor sample; OR
2. cMET overexpression in tumor sample; OR
3. EGFR overexpression in tumor sample; OR
4. Other EGFR or cMET gene alteration in blood sample (circulating tumor DNA, ctDNA).

In Phase II, CRC patients must provide blood sample for NGS test, but may not provide tumor samples at prescreening visit. CRC patients don't need to meet the above criteria of EGFR/cMET amplification, overexpression or gene aberration.

Screening Inclusion Criteria

1. Able to understand and willing to sign the Informed Consent Form (ICF).
2. Histologically/cytologically confirmed advanced/metastatic gastric cancer, HCC, BTC, and colorectal cancer with measurable disease (RECIST V1.1). To be eligible, patients must meet following criteria:

1. Have failed all standard of care therapies known to confer clinical benefit. Patients who is not tolerable on standard of care therapies, or no standard of care therapies available, or refused standard of care therapies are eligible.
2. Have measurable disease as defined by RESIST v 1.1.
3. Archival tumor tissue (formalin-fixed or paraffin-embedded, collected within 1 year) or a new biopsy collected in the molecular pre-screening visit.
4. Must have adequate organ function.
5. Regarding prior anti-tumor therapy:

1. Patients who have received any anticancer drugs approved or investigational, including chemotherapy, immune therapy, hormonal therapy (Exceptions: hormone-replacement therapy, testosterone or oral contraceptives), biologic therapy, must have stopped treatment at least 4 weeks or within 5 half -lives whichever shorter before first dose of EMB-01.
2. Local radiotherapy or radiation therapy for bone metastases must have stopped 2 weeks before first dose of EMB-01. No therapeutic radiopharmaceuticals are taken within 8 weeks before first dose of EMB-01.
3. Patients who have received prior targeted therapies must have stopped treatment for at least 4 weeks or within 5 half-lives, whichever is shorter before first dose of EMB-01.
6. Female patient with fertility or male patient whose partner has fertility should use one or more contraceptive methods for contraception starting from screening period and continue throughout the study treatment and for 3 months.
7. ECOG score ≤1.

Exclusion Criteria:

Molecular Pre-screening Exclusion Criteria

Subject who meets any of the following criteria can't be proceeded to clinical screening:

1. Patients who are unwilling to sign the molecular pre-screening ICF.
2. Patients for whom the results of central laboratory testing do not meet the molecular pre-screening inclusion criteria.
3. Patients with a documented gene alteration including but not limited to HER2, KRAS, NRAS, BRAF, NTRK, ALK, RET, ROS1, and FGFR, etc. that is known to confer resistance to EGFR and/or cMET inhibitors.\* \* In Phase II, CRC patients with activated KRAS, NRAS or BRAF mutation should be excluded, but patients with other gene alterations do not need to be excluded.

Screening Exclusion Criteria

1. Life expectancy < 3 months.
2. Patients with primary central nervous system (CNS) malignancy or symptomatic CNS (leptomeningeal or brain) metastases are not allowed. Patients with asymptomatic CNS metastases are eligible.
3. Pregnant or nursing females.
4. Patients who have had major surgery within the 28 days from the screening. Surgical wounds must be completely healed.
5. Any other serious underlying medical (e.g. uncontrolled diabetes mellitus, active uncontrolled infection, active gastric ulcer, uncontrolled seizures, cerebrovascular incidents, gastrointestinal bleeding, severe signs and symptoms of coagulation and clotting disorders, cardiac conditions), psychiatric, psychological, familial or geographical condition that, in the judgment of the investigator, may interfere with the planned staging, treatment and follow-up, affect patient compliance or place the patient at high risk from treatment-related complications.

Study Design

Enrollment

152 participants

Anticipated

Intervention Model

Single group

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

experimental: Phase Ib and Phase II

The study will consist of Phase Ib and Phase II. The study is planning to recruit approximately 152 patients in total for advanced/metastatic GI cancers, which include 24 patients in Phase Ib and up to approximately 128 patients in Phase II. For GC, HCC, and BTC groups, up to approximately 24 patients may be enrolled in Phase Ib and Phase II. For CRC group, up to approximately 80 patients may be enrolled in Phase Ib and Phase II with up to 40 patients in each subgroup.

Interventions

EMB-01

EMB-01 at the RP2D of 1600 mg will be administered as an IV infusion once weekly (QW) throughout the study. One cycle is defined as 4 weeks (4 doses).

Primary outcome measure

  • Number of participants with Adverse Events and Serious Adverse Events as assessed by CTCAE v5.0 [ Time Frame: Phase 1b, screening up to follow-up (30 days after the last dose) ]
  • Best Overall Response (BOR) as assessed by RECIST v1.1 [ Time Frame: Phase II, from the date of dosing until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 48 months ]
  • Objective Response Rate (ORR) as assessed by RECIST v1.1 [ Time Frame: Phase II, from the date of dosing until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 48 months ]
  • Duration of Response (DoR) as assess by RECIST v1.1 as assess by RECIST v1.1 [ Time Frame: Phase II, from the date of dosing until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 48 months ]
  • Disease Control Rate (DCR) as assess by RECIST v1.1 [ Time Frame: Phase II, from the date of dosing until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 48 months ]
  • Progression-Free Survival (PFS) as assess by RECIST v1.1 [ Time Frame: Phase II, from the date of dosing until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 48 months ]
  • Maximum serum concentration (Cmax) of EMB-01 [ Time Frame: Phase Ib only, up to 3 months after first study drug administration ]
  • Trough serum concentration (Ctrough) of EMB-01 [ Time Frame: Phase Ib only, predose, through treatment completion, an average of 1 year ]
  • Area under the concentration-time curve from time 0 (pre-dose) to the time of the dosing interval (AUC0-t) [ Time Frame: Phase Ib only, up to 3 months after first study drug administration ]
  • Area under the concentration-time curve from time 0 to infinity (AUC0-inf) [ Time Frame: Phase Ib only, up to 3 months after first study drug administration ]
  • Elimination half-life (T1/2) [ Time Frame: Phase Ib only, up to 3 months after first study drug administration ]
  • Systemic clearance (CL) [ Time Frame: Phase Ib only, up to 3 months after first study drug administration ]
  • Apparent volume of distribution at steady-state (Vss) [ Time Frame: Phase Ib only, up to 3 months after first study drug administration ]
  • Accumulation Ratio (AR) after multiple dosing [ Time Frame: Phase Ib only, up to 3 months after first study drug administration ]
  • Incidence of positive ADA [ Time Frame: Phase Ib only, up to the 30-day safety follow-up visit after EOT ]
  • Clinical benefit rate(CBR) as assess by RECIST v1.1 [ Time Frame: Phase II, from the date of dosing until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 48 months ]

Central Contacts and Locations

Locations

MD Anderson Cancer Center

Recruiting

Houston, Texas, United States, 77030

More Information

Sponsor

Shanghai EpimAb Biotherapeutics Co., Ltd.

Last update posted

Aug 26, 2024

Last verified

Aug, 2024

Keywords

  • Human Bispecific antibody
  • Epidermal Growth Factor Receptor (EGFR)
  • c-Mesenchymal-Epithelial Transition (cMet)
  • Neoplasms, Neoplasm Metastasis
  • Neoplasm Metastasis
  • EMB-01,Tyrosine Kinase Inhibitor (TKI) Resistant

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-09. This information was provided to ClinicalTrials.gov by Shanghai EpimAb Biotherapeutics Co., Ltd. on 2024-08-26.