AST-021p Study in Advanced Solid Tumors

A Phase 1 Study to Evaluate the Safety, Tolerability and Optimal Immunogenic Dose of Therapeutic Cancer Vaccine (AST-021p) in Patients With Advanced Solid Tumors

The purpose of this study is to evaluate the safety, tolerability and optimal Immunogenic dose of therapeutic cancer vaccine (AST-021p) in patients With advanced solid tumors

A phase 1 study

Study Overview

• Status: Completed
• Conditions: Advanced Cancer
• Intervention / Treatment: Drug: AST-021p

Detailed Description

Recurrent or advanced solid cancer patients without applicable standard treatments will be included in the 4 dose groups (4 cohort groups- 1.2mg, 2.4mg, 3.6mg and 4.8mg) of AST-021p. Participants in each cohort group will be treated 3 times in each dose (3 priming immunications)

This study will apply a modified 3+3 design for dose-escalation.

1 participant will be registered in the lowest dose cohort group(1.2mg) and when the safety and tolerance of the AST-021p(1.2mg) are identified in the the first group, dose will be increased sequentially and accordingly, the safety and tolerance will be assessed for six participants in the other cohort groups (group2(2.4mg), group3(3.6mg) and group4(4.8mg)).

For subjects who received only priming immunization, safety and immunogenicity are assessed at the End of Treatment (EOT) visit. For subjects who received boosting immunization, safety and immunogenicity are assessed at the first booster dose (V6) and the End of Study (EOS) visit respectively.

Survival follow-up will be conducted every 3 months until the EOS visit of the last subject in the 4.8mg dose group.

• Study Type: Interventional
• Enrollment (Actual): 22
• Phase: Phase 1

Contacts and Locations

Study Locations

• South Korea
  • Seoul, South Korea
    • Korea University Anam Hospital
  • Seoul, South Korea
    • Korea University Guro Hospital
  • Seoul, South Korea
    • Seoul St. Mary's Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 19 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• has recurrent or metastatic solid cancer that has been proven histologically or cytologically and cannot be treated with surgery or radiotherapy for the purpos of complete remission
• does not have a standard treatment that can be applied clinically according to the investigator's judgment
• has an expected life expectancy of more than 3 months
• adults aged 19 or older based on screening day
• ECOG performance status : 0~1

Exclusion Criteria:

• Has a history of hypersensitivity or other contraindications to rhGM-CSF and Montanide ISA 51 VG
• Has a history of other primary malignant tumor
• Has autoimmune diseases or inflammatory diseases
• Has a history of active primary immunodeficiency 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
• has a history of immune suppression therapy ≤4 weeks prior to the screening day

Study Plan

How is the study designed?

Design Details

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

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Cohort group of AST-021p for dose-escalation; 4 cohort groups for AST- 021p administration: Group 1) 1.2mg AST-021p, Montanide ISA 51 VG and rhuGM-CSF Group 2) 2.4mg AST-021p, Montanide ISA 51 VG and rhuGM-CSF Group 3) 3.6mg AST-021p, Montanide ISA 51 VG and rhuGM-CSF Group 4) 4.8mg AST- 021p, Montanide ISA 51 VG and rhuGM-CSF	Drug: AST-021p; 3 priming immunization (2weeks x3) in 4 cohort groups (1.2mg, 2.4mg, 3.6mg and 4.8mg AST-021p) if possible, 3 boosting immunization (4weeks x 3) in cohort groups after priming immunization

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of participants with treatment-related adverse events as assessed by AST-021p	After AST-021p administration in patients with advance solid tumor, safety and tolerance are assessed for each dose group(1.2mg,2.4mg, 3.6mg &4.8mg) Safety and tolerance evaluation variables : 1)adverse events 2) Vital signs 3)Physical examination 4) ECOG performance evaluation 5)ECG examination 6)Laboratory examination	6weeks and 20weeks after AST-021p administration in each cohort group

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Tumor response assessment	Disease control rate (%), objective response rate(%) and duration of response (days & weeks)	Overall study period approximately up to 5months
Immunogenicity assessment	AST-021p specific IFN-γ ELISpot(Interferon Gamma Enzyme-linked immunospot) test results and ASP-021p4 & ASP-021p5 specific IFN-γ ELISpot	8weeks after ASP-021p administration and 20weeks after ASP-021p administration
Progression-Free Survival rate	PFS rate (%) at 20weeks from first IP administration	Overall study period approximately up to 5months
Overall Survival rate	OS rate (%) at 20weeks from first IP administration	Overall study period approximately up to 5months

Collaborators and Investigators

• Sponsor: Aston Sci. Inc.
• Investigators: Principal Investigator: Kyong Hwa Park, MD. PhD, Korea University Anam Hospital

Study record dates

Study Major Dates

• Study Start (Actual): June 9, 2021
• Primary Completion (Actual): November 2, 2023
• Study Completion (Actual): April 5, 2024

Study Registration Dates

• First Submitted: April 22, 2021
• First Submitted That Met QC Criteria: April 27, 2021
• First Posted (Actual): April 28, 2021

Study Record Updates

• Last Update Posted (Actual): July 22, 2026
• Last Update Submitted That Met QC Criteria: July 20, 2026
• Last Verified: July 1, 2026

More Information

Terms related to this study

• Keywords: cancer vaccine
• Other Study ID Numbers: PN-021-11

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: Yes
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: Yes