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A Study of MR001 Combined With Chemotherapy in Patients With Locally Advanced or Metastatic Pancreatic Ductal Adenocarcinoma (PDAC) After First-line Therapy

Not Applicable
Not yet recruiting
Conditions
Pancreatic Ductal Adenocarcinoma (PDAC)
Interventions
Registration Number
NCT07235202
Lead Sponsor
Shenzhen Majory Biotechnology Co., Ltd.
Brief Summary

This Phase Ib/IIa study is evaluating the safety, tolerability, pharmacokinetics, and preliminary efficacy of MR001 Combined with Chemotherapy in patients with locally advanced or metastatic pancreatic ductal adenocarcinoma (PDAC) who have progressed after first-line therapy.

Detailed Description

This is an open-label, dose-escalation and dose-expansion Phase Ib/IIa study to evaluate the safety, tolerability, pharmacokinetics, and preliminary efficacy of MR001 in combination with standard chemotherapy regimens in patients with locally advanced or metastatic pancreatic ductal adenocarcinoma (PDAC) who have progressed after first-line therapy.

Recruitment & Eligibility

Status
NOT_YET_RECRUITING
Sex
All
Target Recruitment
45
Inclusion Criteria
  • Histologically or cytologically confirmed locally advanced or metastatic PDAC, progressed after only one prior line of systemic therapy.
  • At least one measurable lesion per RECIST v1.1.
  • ECOG Performance Status of 0-1.
  • Life expectancy >3 months.
  • Adequate organ and marrow function as defined by laboratory parameters.
  • Voluntarily sign the informed consent form.
Exclusion Criteria
  • Known hypersensitivity to MR001 or similar monoclonal antibodies.
  • Requirement for systemic immunosuppressive therapy within 14 days before first dosing.
  • Uncontrolled active infections or concurrent malignancies.
  • Not adequately controlled active brain metastases or leptomeningeal metastasis.
  • Clinically significant cardiovascular, renal, or hepatic disorders.
  • Pregnant or breastfeeding women.
  • Any other circumstances which the investigator considers may increase risks to subjects or interfere with the results of the trial.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Dose Escalation Part1, Dose Group 1: MR001+Irinotecan Liposome+LV/5-FUMR001MR001, 2mg/kg, QW; Irinotecan Liposome+LV/5-FU, Per locally approved dosage and administration
Dose Escalation Part2, Dose Group 2: MR001+nab-paclitaxel+gemcitabineNab-paclitaxelMR001, 4mg/kg, QW; nab-paclitaxel+gemcitabine, Per locally approved dosage and administration
Dose Escalation Part2, Dose Group 3: MR001+nab-paclitaxel+gemcitabineMR001MR001, 6mg/kg, QW; nab-paclitaxel+gemcitabine, Per locally approved dosage and administration
Dose Escalation Part2, Dose Group 3: MR001+nab-paclitaxel+gemcitabineNab-paclitaxelMR001, 6mg/kg, QW; nab-paclitaxel+gemcitabine, Per locally approved dosage and administration
Dose Escalation Part2, Dose Group 3: MR001+nab-paclitaxel+gemcitabineGemcitabine (GEM)MR001, 6mg/kg, QW; nab-paclitaxel+gemcitabine, Per locally approved dosage and administration
Dose Escalation Part1, Dose Group 1: MR001+Irinotecan Liposome+LV/5-FUIrinotecan Liposome Injection combined with 5-FU/LVMR001, 2mg/kg, QW; Irinotecan Liposome+LV/5-FU, Per locally approved dosage and administration
Dose Escalation Part1, Dose Group 3: MR001+Irinotecan Liposome+LV/5-FUMR001MR001, 6mg/kg, QW; Irinotecan Liposome+LV/5-FU, Per locally approved dosage and administration
Dose Escalation Part2, Dose Group 1: MR001+nab-paclitaxel+gemcitabineMR001MR001, 2mg/kg, QW; nab-paclitaxel+gemcitabine, Per locally approved dosage and administration
Dose Escalation Part2, Dose Group 1: MR001+nab-paclitaxel+gemcitabineGemcitabine (GEM)MR001, 2mg/kg, QW; nab-paclitaxel+gemcitabine, Per locally approved dosage and administration
Dose Expansion PartNab-paclitaxelBased on the Dose escalation part results, the Investigator and Sponsor will determine one dose and dosing interval to proceed to the dose expansion study
Dose Expansion PartGemcitabine (GEM)Based on the Dose escalation part results, the Investigator and Sponsor will determine one dose and dosing interval to proceed to the dose expansion study
Dose Escalation Part1, Dose Group 2: MR001+Irinotecan Liposome+LV/5-FUMR001MR001, 4mg/kg, QW; Irinotecan Liposome+LV/5-FU, Per locally approved dosage and administration
Dose Escalation Part1, Dose Group 2: MR001+Irinotecan Liposome+LV/5-FUIrinotecan Liposome Injection combined with 5-FU/LVMR001, 4mg/kg, QW; Irinotecan Liposome+LV/5-FU, Per locally approved dosage and administration
Dose Escalation Part1, Dose Group 3: MR001+Irinotecan Liposome+LV/5-FUIrinotecan Liposome Injection combined with 5-FU/LVMR001, 6mg/kg, QW; Irinotecan Liposome+LV/5-FU, Per locally approved dosage and administration
Dose Escalation Part2, Dose Group 1: MR001+nab-paclitaxel+gemcitabineNab-paclitaxelMR001, 2mg/kg, QW; nab-paclitaxel+gemcitabine, Per locally approved dosage and administration
Dose Escalation Part2, Dose Group 2: MR001+nab-paclitaxel+gemcitabineMR001MR001, 4mg/kg, QW; nab-paclitaxel+gemcitabine, Per locally approved dosage and administration
Dose Escalation Part2, Dose Group 2: MR001+nab-paclitaxel+gemcitabineGemcitabine (GEM)MR001, 4mg/kg, QW; nab-paclitaxel+gemcitabine, Per locally approved dosage and administration
Dose Expansion PartMR001Based on the Dose escalation part results, the Investigator and Sponsor will determine one dose and dosing interval to proceed to the dose expansion study
Dose Expansion PartIrinotecan Liposome Injection combined with 5-FU/LVBased on the Dose escalation part results, the Investigator and Sponsor will determine one dose and dosing interval to proceed to the dose expansion study
Primary Outcome Measures
NameTimeMethod
Number of participants who experience one or more dose-limiting toxicities (DLTs)Approximately 12 months
Maximum Tolerated Dose (MTD) of MR001Approximately 12 months

The maximum tolerated dose (MTD) of MR001 was assessed for QW dosing schedules

Objective Response Rate (ORR)Approximately 24 months
Disease control rate (DCR)Approximately 24 months
Incidence of Adverse Events (AEs) as Assessed by CTCAE v5.0Approximately 30 months
Best Overall Response (BOR)Approximately 24 months
Secondary Outcome Measures
NameTimeMethod
Recommended Phase II Dose (RP2D) of MR001 in combination with standard chemotherapy regimens in patients with locally advanced or metastatic pancreatic ductal adenocarcinoma (PDAC)Approximately 12 months
Progressionfree survival (PFS)Approximately 24 months
Change from baseline at different time points for CD4 in plasmaPredose and at designated timepoints in each cycle for approximately 18 months (each cycle = 2 weeks or 4 weeks)
Overall survival (OS)Approximately 30 months
Area Under the Plasma ConcentrationTime Curve (AUC) of MR001Predose and at designated timepoints in each cycle for approximately 18 months (each cycle = 2 weeks or 4 weeks)
Half-life (T1/2) of MR001Predose and at designated timepoints in each cycle for approximately 18 months (each cycle = 2 weeks or 4 weeks)
Change from baseline at different timepoints for Th2 in plasmaPredose and at designated timepoints in each cycle for approximately 18 months (each cycle = 2 weeks or 4 weeks)
Maximum Plasma Concentration (Cmax) of MR001Predose and at designated timepoints in each cycle for approximately 18 months (each cycle = 2 weeks or 4 weeks)
Incidence of Antidrug Antibodies (ADA) to MR001Predose in every 4 cycles for approximately 18 months (each cycle = 2 weeks or 4 weeks)
Change from baseline at different time points for Th1 in plasmaPredose and at designated timepoints in each cycle for approximately 18 months (each cycle = 2 weeks or 4 weeks)
Change from baseline at different timepoints for TGF-β1 in plasmaPredose and at designated timepoints in each cycle for approximately 18 months (each cycle = 2 weeks or 4 weeks)

Trial Locations

Locations (1)

Beijing Tsinghua Changgung Hospital

🇨🇳

Beijing, Beijing Municipality, China

Beijing Tsinghua Changgung Hospital
🇨🇳Beijing, Beijing Municipality, China
Jiahong Dong, MD, PhD
Contact
+86-10-56118899
dongjiahong@mail.tsinghua.edu.cn

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