Pelareorep and Paclitaxel Injection in Chinese Patients With Advanced or Metastatic Breast Cancer

A Multicenter, Single-Arm, Open-Label Phase I Clinical Study of Pelareorep With Paclitaxel in Advanced or Metastatic Breast Cancer

This ia a multicenter, Single-Arm, Open-Label Phase I Clinical Study Evaluating the Safety and Tolerability of Pelareorep Combined with Paclitaxel Injection and the Intracorporal Process of Pelareorep in Chinese Patients with Advanced or Metastatic Breast Cancer.

Study Overview

• Status: Completed
• Conditions: Advanced or Metastatic Breast Cancer
• Intervention / Treatment: Drug: Pelareorep

Detailed Description

This study will enroll patients with advanced or metastatic breast cancer to assess the safety and tolerability of Pelareorep at 1.5×10^10, 3.0×10^10, 4.5×10^10 (TCID50) combined with paclitaxel to fix the MTD or RP2D.

• Study Type: Interventional
• Enrollment (Actual): 15
• Phase: Phase 1

Contacts and Locations

Study Locations

• China
  • Jilin
    • Chang chun, Jilin, China, 130012
      • Bethune First Hospital of Jilin University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 70 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

Subjects are eligible to be included in the study only if all of the following criteria apply:

1. Voluntarily participating in this trial and having signed the Informed Consent Form (ICF).
2. Women aged ≥18 and ≤70 years (at the time of signing ICF).
3. Pathohistologically or cytologically documented unresectable advanced or metastatic breast cancer that is suitable for paclitaxel treatment, negative for HER2 amplification/overexpression as defined per the American Society of Clinical Oncology - College of American Pathologists (ASCO-CAP) guidelines (Appendix 1), and positive for estrogen receptor (ER) or progesterone receptor (PR).
4. At least one measurable target lesion as defined by Response Evaluation Criteria In Solid Tumors (RECIST) 1.1.
5. Anticipated life expectancy ≥3 months.
6. Eastern Cooperative Oncology Group (ECOG) performance score (PS) 0 to 1.

7. Prior chemotherapy meeting the followings:

   • The subject has received no or only 1 chemotherapy regimen (monotherapy or combined treatment) after relapse or metastasis;
   • Prior adjuvant, neoadjuvant or first-line chemotherapy with taxanes, if any, has been discontinued for >12 months by the time of enrollment, and none of the prior therapies were discontinued due to progressive disease or toxicity.

8. Prior endocrinotherapy meeting the followings:

   The subject has received at least one endocrinotherapy regimen, alone or combined with CDK4/6 or mTOR inhibitors, and has experienced progressive disease or intolerability.

9. Meeting the following criteria for laboratory tests (provided that there was no blood transfusion, use of G-CSF or use of drug for correction of, e.g., blood components, etc., within 14 days prior to the test):

   Test Criterion Hematology Neutrophil count ≥ 1.5 ×10^9/L

   Platelet count ≥ 100 ×10^9/L RBC count ≥ 90g/L Lymphocyte count ≥0.8×10^9/L Biochemistry

   Serum creatinine ≤1.5 × upper limit of normal (ULN) and estimated creatinine clearance ≥40 mL/min (by Cockcroft -Gault formula, see Appendix 3) Albumin ≥30g/L Total bilirubin ≤1.5 × ULN

   AST and ALT ≤ 2.5 × ULN (or ≤3.0 × ULN in the presence of documented liver metastasis) Coagulation International Normalized Ratio (INR) or prothrombin time (PT)

   • 1.5 × ULN Activated partial thromboplastin time (aPTT)
   • 1.5 × ULN Urinalysis (24h urine protein quantitation if necessary) Urine protein ≤1+; if ≥2+, 24h protein quantitation is required and should be <1.0g/24h

10. Duration from the end of last non-study treatment to the first study treatment:

    • Prior chemotherapy or other investigational product: >4 weeks or >5 half lives, whichever occurred later (or >4 weeks if the half life is unavailable)
    • Surgical treatment or radiotherapy: >3 weeks
    • Endocrinotherapy or small-molecular targeted therapy: >2 weeks
11. Women of childbearing potential must have a negative pregnancy test within 7 days prior to the first study treatment, be willing to use appropriate and reliable contraception throughout the treatment period and for 6 months after last study treatment, and be willing to undergo additional pregnancy tests during the study.

Exclusion Criteria:

1. A history of other malignancies, except for adequately treated non-melanoma skin cancer or solid tumors curatively treated with no evidence of disease for > 3 years.
2. Known active, uncontrolled or symptomatic central nervous system (CNS) metastases, carcinomatous meningitis, or leptomeningeal disease as indicated by clinical symptoms, cerebral edema, and/or progressive growth. Subjects with CNS metastases treated with radiation therapy (WBXRT or SRS) are eligible if > 28 days following completion of XRT, they show stable disease on post-treatment MRI/CT, are off corticosteroids, and are neurologically stable.
3. Patients who have not recovered from acute toxicities of previous therapy(ies), except treatment-related alopecia or stable sensory neuropathy ≤ Grade 2 (CTCAE v5.0).
4. Systemic immunosuppressive therapy lasting >2 weeks within 1 month prior to the first study treatment or immunosuppressants used within the last 7 days including but not limited to prednisone >10 mg/day or equivalent, yet excluding intermittently used inhaled corticosteroids as bronchodilators or topical steroid injections.
5. Positivity for hepatitis B surface antigen (HBsAg) with hepatitis B viral load (HBV-DNA) higher than the laboratory lower limit of detection, or positivity for anti-hepatitis C virus antibody (anti-HCV) with hepatitis C viral load (HCV-RNA) higher than the laboratory lower limit of detection, or positivity for anti-human immunodeficiency virus (HIV) antibody (anti-HIV), or positivity for treponema pallidum antibody.
6. Patients with autoimmune diseases.
7. A history of opportunistic infection within 1 year, presence of active, uncontrolled infection (clinically significant viral, bacterial, fungal or other infections), antibiotic or antiviral treatment given within 14 days prior to first study treatment.
8. Inoculation with live or attenuated virus vaccine within 1 months prior to screening.

9. Cardiovascular diseases of clinical significance, including:

   • Myocardial infarction within the last 6 months
   • Unstable angina (despite the attempt to control it with drug)
   • Heart failure (New York Heart Association [NYHA] ≥ class II)
   • QTc interval ≥470ms (Fridericia's Correction Formula: QTcF= QT msec/(RR sec)0.33)
   • Left ventricular ejection fraction (LVEF) measured by echocardiography or multigated acquisition (MUGA) ≤50%
   • Uncontrolled hypertension (BP>150/90mmHg despite optimal treatment)
10. Severe hematological, gastrointestinal, respiratory or endocrine disorders.
11. Known hypersensitivity to paclitaxel or any of its excipients , or to Pelareorep or any of its components.
12. Patients who have been enrolled into another clinical study of drugs, medical devices or prosthesis implantation, or where ≤4 weeks have elapsed since discontinuation of another investigational drug or medical device or prosthesis implantation.
13. Pregnant or lactating women.
14. Other circumstances that in the investigator's opinion may affect patient's protocol compliance or evaluation of study indicators and thus make it inappropriate for the patient to participate in the study.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Patients With Advanced or Metastatic Breast Cancer; Patients will receive Pelareorep with Paclitaxel for 8 cycles (28 days/cycle).	Drug: Pelareorep; Pelareorep at 1.5×10^10 TCID50, 3×10^10 TCID50, 4.5×10^10 TCID50 on Day 1/2/8/9/15/16 with Paclitaxel at 80 mg/m^2 on Day 1/8/15 per cycle; Other Names: Paclitaxel

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of participants with Dose Limiting Toxicities (DLTs)	DLTs are defined as study drug-related toxicities graded using Common Terminology Criteria for Adverse events of the National Cancer Institute (NCI CTCAE) V5.0 occurring during DLT period (the first 4 weeks of AN0025 administration in combination with dCRT)	4 Weeks

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Objective response rate (ORR)	The rate of patients with complete response and partial response in all tumor evaluable patients	24 months
Disease control rate (DCR)	The rate of patients with complete response, partial response and stable disease in all tumor evaluable patients	24 months
Progression-free survival (PFS)	The duration from the date of 1st dose to imaging progression or death, which earlier	24 months
Duration of response (DOR)	The duration from the first PR/CR to progression	24 months
Overall survival (OS)	The duration from the date of 1st dose to death	24 months

Collaborators and Investigators

• Sponsor: Adlai Nortye Biopharma Co., Ltd.
• Investigators: Principal Investigator: Wei Li, M.D., the First Hospital of Jilin University

Study record dates

Study Major Dates

• Study Start (Actual): October 11, 2021
• Primary Completion (Actual): September 29, 2022
• Study Completion (Actual): May 30, 2023

Study Registration Dates

• First Submitted: August 25, 2022
• First Submitted That Met QC Criteria: August 25, 2022
• First Posted (Actual): August 29, 2022

Study Record Updates

• Last Update Posted (Estimated): November 22, 2023
• Last Update Submitted That Met QC Criteria: November 21, 2023
• Last Verified: August 1, 2022

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Skin Diseases; Neoplasms; Neoplasms by Site; Breast Diseases; Breast Neoplasms; Molecular Mechanisms of Pharmacological Action; Antineoplastic Agents; Tubulin Modulators; Antimitotic Agents; Mitosis Modulators; Antineoplastic Agents, Phytogenic; Paclitaxel
• Other Study ID Numbers: REO 026-1

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No