A Study of MRG002 in Patients With HER2-Positive Advanced Solid Tumors and Locally Advanced or Metastatic Gastric/Gastroesophageal Junction (GEJ) Cancer

Advanced Solid Tumors Clinical Trial

Official title:

An Open-Label, Multi-center Phase I/II Dose Escalation and Expansion Study to Assess the Safety, Efficacy and Pharmacokinetics of MRG002 in Patients With HER2-Positive Advanced Solid Tumors and Locally Advanced or Metastatic Gastric/Gastroesophageal Junction (GEJ) Cancer

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT04492488
• Other study ID #: MRG002-101
• Status: Recruiting
• Phase: Phase 1/Phase 2
• Start date: May 24, 2021
• Est. completion date: August 2023

Study information

• Verified date: March 2022
• Source: Shanghai Miracogen Inc.
• Contact: Jenny Y Li, RPh
• Phone: 650-237-9339
• Email: jenny_li[@]innucubebio.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The objective of this study is to assess the safety, efficacy, and pharmacokinetics of MRG002, as well as the immunogenicity as defined by the incidence of anti-drug antibody (ADA) of MRG002 in patients with HER2-positive advanced solid tumors and locally advanced or metastatic gastric/gastroesophageal junction (GEJ) cancer.

Description:

This study consists of two parts. In Part A, patients will receive MRG002 as a monotherapy at doses of 2.2 or 2.6 mg/kg intravenously (IV) over 60-90 minute on Day 1 of every 3 weeks (Q3W), to determine the maximum tolerated dose (MTD) and recommended phase II dose (RP2D). In part B, patients will receive a single IV infusion of MRG002 at RP2D on Day 1 of Q3W.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 129
• Est. completion date: August 2023
• Est. primary completion date: December 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• The patient must be able to provide written informed consent and follow the requirements specified in protocol.

• Age: =18 years.

• Life expectancy =6 months.

• Must have histologically or cytologically confirmed HER2-positive metastatic, unresectable cancer and must have had prior disease progression on all standard therapies for their tumor.

• Available archival tumor tissue (archival or from a new biopsy).

• At least one non-irradiated measurable tumor lesion according to RECIST v1.1.

• Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.

• Acceptable liver, renal, hematologic and coagulation function.

Exclusion Criteria:

• Toxicities (except alopecia & fatigue) due to prior antitumor therapy are higher than CTCAE v5.0 Grade 1.

• Toxicities due to radiotherapy (higher than grade 1) have not resolved to CTCAE v5.0 Grade =1 at least 21 days prior to the screening visit.

• Prior palliative or therapeutic radiation therapy to any RECIST v1.1 target lesion that defines baseline measurable disease for the study.

• Untreated or uncontrolled central nervous system (CNS) metastases.

• Any chemotherapy, biotherapy, immunotherapy, radiotherapy or other anti-tumor therapy within 3 weeks of the first dose of study treatment.

• Any severe cardiac dysfunction within 6 months of enrollment.

• Pulmonary embolism or deep vein thrombosis within 3 months prior to the first dose of study drug.

• Concurrent malignancy within 5 years prior to entry.

• Uncontrolled hypertension (systolic blood pressure >160 mmHg or diastolic blood pressure > 100 mmHg).

• History of ventricular tachycardia, or torsade des pointes.

• History of moderate to severe dyspnea at rest due to advanced malignancies or their complications, severe primary lung disease, current need of continuous oxygen therapy, or clinically active interstitial lung disease (ILD) or pneumonitis.

• Major surgery within 4 weeks of the first dose of study treatment and not fully recovered. Minor surgery within 2 weeks prior to study treatment.

• Known allergic reactions to any component or excipient of MRG002 or known allergic reactions to trastuzumab or other prior anti-HER2 or other monoclonal antibody = Grade 3.

• Patients who have any known liver disease, including chronic hepatitis B, hepatitis C, autoimmune hepatic disorders, primary biliary cirrhosis or sclerosing cholangitis; Patients who have concurrent, serious, uncontrolled infections or known infection with HIV, or have a diagnosed acquired immunodeficiency syndrome (AIDS); or an uncontrolled autoimmune disease, or have undergone organ transplant.

• Active uncontrolled bacterial, viral, fungal, rickettsial, or parasitic infection.

• Any severe and/or uncontrolled systemic disease that at the discretion of investigator and sponsor makes it undesirable for the patient to participate in this study.

• Use of systemic corticosteroids within 4 weeks prior to the first dose of treatment.

• Use of strong CYP3A4 inhibitors.

• Pregnancy or breast-feeding.

Related Conditions & MeSH terms

• Advanced or Metastatic Gastric Cancer
• Advanced or Metastatic Gastroesophageal Junction Cancer
• Advanced Solid Tumors
• Neoplasms

Intervention

Drug:
• MRG002
Administrated intravenously

Locations

Country	Name	City	State
United States	Gabrail Cancer Center Research	Canton	Ohio
United States	Cleveland Clinic Taussig Cancer Center	Cleveland	Ohio
United States	Prisma Health Care Institute	Greenville	South Carolina
United States	MD Anderson Cancer Center	Houston	Texas
United States	University of California Irvine Chao Family Comprehensive Cancer Center	Orange	California
United States	Fox Chase Cancer Center	Philadelphia	Pennsylvania

Sponsors (1)

Lead Sponsor	Collaborator
Shanghai Miracogen Inc.

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Maximum Tolerated Dose (MTD)	The dose level in which (i) less than 2 out of 6 patients in a treatment cohort experiences dose-limiting toxicity (DLT); or (ii) <33% of an evaluable patient treatment cohort experiences DLT.	DLT will be evaluated during the first 21-day treatment cycle (Cycle 1)
Primary	Recommended Phase II Dose (RP2D)	Identify the recommended Phase II dose (RP2D) of MRG002 for Phase II clinical study. The RP2D may be the same as the MTD or an evaluable dose level lower than the MTD.	Day 1 to Day 21 of Cycle 1
Primary	Objective Response Rate (ORR)	Objective response rate (ORR) will be assessed by Independent Central Review (ICR) based on RECIST v1.1. Cumulative safety and dosing data will be reviewed by an independent Data Safety Monitoring Board (DSMB).	Baseline to study completion (24 months)
Primary	Incidence of Adverse Events (AEs)	AEs will be coded using MedDAR. Descriptive statistics will be used to summarize results to assess the safety and tolerability profile of MRG002.	After signing informed consent until 45 days after the last dose of MRG002
Secondary	Duration of Response (DoR)	Sensitivity analyses of DoR from the Investigator's assessment will be performed in the final analysis.	Baseline to study completion (24 months)
Secondary	Disease Control Rate (DCR)	Sensitivity analyses of DCR from the Investigator's assessment will be performed in the final analysis.	Baseline to study completion (24 months)
Secondary	Progression Free Survival (PFS)	Sensitivity analyses of PFS from the Investigator's assessment will be performed in the final analysis.	Baseline to study completion (24 months)
Secondary	Pharmacokinetics (PK) parameter for MRG002: Maximum Drug Concentration (Cmax)	Cmax will be derived from the PK blood samples collected and will be summarized with descriptive statistics.	Baseline to study completion (24 months)
Secondary	PK parameter for MRG002: Area Under the Curve Up to the Last Validated Measurable Plasma Concentration (AUClast)	AUClast will be derived from the PK blood samples collected and will be summarized with descriptive statistics.	Baseline to study completion (24 months)
Secondary	PK parameter for total antibody (TAb): Cmax	Cmax will be derived from the PK blood samples collected and will be summarized with descriptive statistics.	Baseline to study completion (24 months)
Secondary	PK parameter for TAb: AUClast	AUClast will be derived from the PK blood samples collected and will be summarized with descriptive statistics.	Baseline to study completion (24 months)
Secondary	PK parameter for Monomethyl Auristatin E (MMAE): Cmax	Cmax will be derived from the PK blood samples collected and will be summarized with descriptive statistics.	Baseline to study completion (24 months)
Secondary	PK parameter for MMAE: AUClast	AUClast will be derived from the PK blood samples collected and will be summarized with descriptive statistics.	Baseline to study completion (24 months)
Secondary	Immunogenicity	5 mL Blood samples for anti-drug antibody (ADA) analysis will be collected each time according to the pre-defined timepoints. The incidence of ADA will be summarized for all patients who received at least one administration of MRG002.	Baseline to study completion (24 months)