Therapeutic Cancer Vaccine (AST-301, pNGVL3-hICD) in Patients With Breast Cancer

NCT ID: NCT05163223

Last Updated: 2024-06-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-02-28

Study Completion Date

2024-05-31

Brief Summary

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The purpose of this study is to evaluate the efficacy and safety of an adjuvant treatment of therapeutic cancer vaccine (AST-301, pNGVL3-hICD) in patients with HER2-low expression (IHC 1+ or 2+ and ISH-) and hormone receptor-negative(ER-, PR-) breast cancer with residual disease after neoadjuvant treatment.

Patients will be randomized 1:1 to either the Experimental arm (combination of AST-301/rhuGM CSF and standard adjuvant therapy) or the Control arm (combination of placebo/rhuGM CSF and standard adjuvant therapy). Standard adjuvant chemotherapy will be pembrolizumab or capecitabine.

Adjuvant therapy will be administered in compliance with the NCCN guideline for breast cancer (Version 8, 2021), and IP (AST-301) will be administered 3 times every 3 weeks in the adjuvant treatment period, with a booster administered at 24 weeks (±7 days) post the third dose of IP administration.

Survival follow up will be performed to determine invasive Disease Free survival(iDFS).

Detailed Description

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Not provided

Conditions

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Breast Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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AST-301(pNGVL3-hICD)+Chemotherapy

* AST-301/rhuGM-CSF (q 3 weeks, 3 cycles) + Standard adjuvant therapy\*
* A booster (AST-301/rhuGM-CSF) at 24 weeks post the third vaccination

* Standard adjuvant therapy will be pembrolizumab or capecitabine (q 3 weeks)

Group Type EXPERIMENTAL

AST-301(pNGVL3-hICD)

Intervention Type BIOLOGICAL

Q3W, 3 cycles, Plus a booster at 24 weeks post the third vaccination, Intradermal injection

rhuGM-CSF

Intervention Type DRUG

Q3W, 3 cycles, Plus a booster at 24weeks post the third vaccination, Intradermal injection

Pembrolizumab

Intervention Type DRUG

Q3W; IV infusion

Capecitabine

Intervention Type DRUG

On days 1-14 (Q3W), BID ; Oral administration,

Placebo + Chemotherapy

* Placebo/rhuGM-CSF (q 3 weeks, 3 cycles) + Standard adjuvant therapy\*
* A booster (Placebo/rhuGM CSF) at 24 weeks post the third vaccination

* Standard adjuvant therapy will be pembrolizumab or capecitabine (q 3 weeks)

Group Type ACTIVE_COMPARATOR

rhuGM-CSF

Intervention Type DRUG

Q3W, 3 cycles, Plus a booster at 24weeks post the third vaccination, Intradermal injection

Placebo

Intervention Type DRUG

Q3W, 3 cycles, Plus a booster at 24 weeks post the third vaccination, Intradermal injection

Pembrolizumab

Intervention Type DRUG

Q3W; IV infusion

Capecitabine

Intervention Type DRUG

On days 1-14 (Q3W), BID ; Oral administration,

Interventions

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AST-301(pNGVL3-hICD)

Q3W, 3 cycles, Plus a booster at 24 weeks post the third vaccination, Intradermal injection

Intervention Type BIOLOGICAL

rhuGM-CSF

Q3W, 3 cycles, Plus a booster at 24weeks post the third vaccination, Intradermal injection

Intervention Type DRUG

Placebo

Q3W, 3 cycles, Plus a booster at 24 weeks post the third vaccination, Intradermal injection

Intervention Type DRUG

Pembrolizumab

Q3W; IV infusion

Intervention Type DRUG

Capecitabine

On days 1-14 (Q3W), BID ; Oral administration,

Intervention Type DRUG

Other Intervention Names

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AST-301 Leukine Sargramostim Normal Saline Keytruda Xeloda

Eligibility Criteria

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Inclusion Criteria

* Has a residual invasive cancer in the breast(non-pCR) after neoadjuvant treatment
* Has stage I, II, or III disease prior to surgery per American Joint Committee on Cancer (AJCC)
* HER 2 1+ by IHC or HER2 2+by IHC without gene amplification by ISH, as defined by American Society of Clinical Oncology (ASCO)/College of American Pathologists (CAP) guidelines.
* Hormone receptor (ER and PR) negative by ASCO/CAP guidelines
* Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
* Demonstrates adequate organ function.

Exclusion Criteria

* Has a history of hypersensitivity or other contraindications to rhGM-CSF
* Has a history of invasive malignancy ≤5 years prior to first administration of investigational drug except for adequately treated non-melanoma skin cancer or carcinoma in situ.
* Is on immune suppression therapy or has a history of immune suppression therapy ≤4 weeks prior to the first administration of investigational drugs
* Has a history of autoimmune disease or inflammatory disease
* Has active infection including tuberculosis, hepatitis B, hepatitis C or human immunodeficiency virus (HIV) infection
* Is pregnant or breastfeeding or expecting to conceive children
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Aston Sci. Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Ironwood Cancer and Research Centers

Chandler, Arizona, United States

Site Status

Scripps Health

La Jolla, California, United States

Site Status

Moffitt Cancer Center

Tampa, Florida, United States

Site Status

University of Illinois Cancer Center

Chicago, Illinois, United States

Site Status

Nebraska Cancer Specialist

Omaha, Nebraska, United States

Site Status

Gabrail Cancer Center Research

Canton, Ohio, United States

Site Status

The Ohio State University Comprehensive Cancer Center

Columbus, Ohio, United States

Site Status

Toledo Clinic Cancer Center

Toledo, Ohio, United States

Site Status

Providence Cancer Institute

Portland, Oregon, United States

Site Status

University of Washington

Seattle, Washington, United States

Site Status

Changhua Christian Hospital

Changhua, , Taiwan

Site Status

Kaohsiung Medical University Chung-Ho Memorial Hospital

Kaohsiung City, , Taiwan

Site Status

China Medical University Hospital

Taichung, , Taiwan

Site Status

Chi Mei Medical Center

Tainan City, , Taiwan

Site Status

Koo Foundation Sun Yat-Sen Cancer Center

Taipei, , Taiwan

Site Status

National Taiwan University Hospital

Taipei, , Taiwan

Site Status

Taipei Veterans General Hospital

Taipei, , Taiwan

Site Status

Countries

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United States Taiwan

Other Identifiers

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PN-301-21

Identifier Type: -

Identifier Source: org_study_id

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