Phase 1 Study Evaluating Safety and Tolerability of SL-T10, GX-I7, and Pembrolizumab Triple Combination in mCRPC.

NCT ID: NCT06344715

Last Updated: 2024-04-03

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

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

78 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-10-17

Study Completion Date

2024-10-31

Brief Summary

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The purpose of this study is to evaluate the efficacy and safety of SL-T10 and GX-I7 or SL-T10, GX-I7 and pembrolizumab in patients with metastatic castration-resistant prostate cancer (mCRPC).

Detailed Description

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The purpose of this study is to evaluate the safety, tolerability, and preliminary efficacy of SL-T10, GX-I7, and pembrolizumab in combination in patients with metastatic castration-resistant prostate cancer (mCRPC).

Conditions

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Metastatic Castration-resistant Prostate Cancer (mCRPC)

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Cohort S1

SL-T10 (3mg, multiple injections, IM), GX-I7 (320 ug 2 injections, IM)

Group Type EXPERIMENTAL

SL-T10

Intervention Type BIOLOGICAL

A therapeutic DNA vaccine containing three prostate cancer-specific antigen genes and genetic adjuvants

GX-I7

Intervention Type BIOLOGICAL

A T-cell growth factor

Cohort S2

SL-T10 (6mg, multiple injections, IM), GX-I7 (320 ug 2 injections, IM)

Group Type EXPERIMENTAL

SL-T10

Intervention Type BIOLOGICAL

A therapeutic DNA vaccine containing three prostate cancer-specific antigen genes and genetic adjuvants

GX-I7

Intervention Type BIOLOGICAL

A T-cell growth factor

Cohort a'

SL-T10 (3mg, multiple injections, IM), GX-I7 (320 ug 2 injections, IM), Pembrolizumab

Group Type EXPERIMENTAL

SL-T10

Intervention Type BIOLOGICAL

A therapeutic DNA vaccine containing three prostate cancer-specific antigen genes and genetic adjuvants

GX-I7

Intervention Type BIOLOGICAL

A T-cell growth factor

Pembrolizumab

Intervention Type BIOLOGICAL

An immune check point inhibitor

Cohort A

SL-T10 (6mg, multiple injections, IM), GX-I7 (320 ug 2 injections, IM), Pembrolizumab

Group Type EXPERIMENTAL

SL-T10

Intervention Type BIOLOGICAL

A therapeutic DNA vaccine containing three prostate cancer-specific antigen genes and genetic adjuvants

GX-I7

Intervention Type BIOLOGICAL

A T-cell growth factor

Pembrolizumab

Intervention Type BIOLOGICAL

An immune check point inhibitor

Cohort B

SL-T10 (6mg, multiple injections, IM) GX-I7 (720 ug 2 injections, IM) Pembrolizumab

Group Type EXPERIMENTAL

SL-T10

Intervention Type BIOLOGICAL

A therapeutic DNA vaccine containing three prostate cancer-specific antigen genes and genetic adjuvants

GX-I7

Intervention Type BIOLOGICAL

A T-cell growth factor

Pembrolizumab

Intervention Type BIOLOGICAL

An immune check point inhibitor

Cohort C

SL-T10 (6mg, multiple injections, IM), GX-I7 (960 ug 2 injections, IM), Pembrolizumab

Group Type EXPERIMENTAL

SL-T10

Intervention Type BIOLOGICAL

A therapeutic DNA vaccine containing three prostate cancer-specific antigen genes and genetic adjuvants

GX-I7

Intervention Type BIOLOGICAL

A T-cell growth factor

Pembrolizumab

Intervention Type BIOLOGICAL

An immune check point inhibitor

Interventions

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SL-T10

A therapeutic DNA vaccine containing three prostate cancer-specific antigen genes and genetic adjuvants

Intervention Type BIOLOGICAL

GX-I7

A T-cell growth factor

Intervention Type BIOLOGICAL

Pembrolizumab

An immune check point inhibitor

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

1. Male patients 19 years of age or older at the date of written informed consent.
2. Patients with histopathologically or cytologically confirmed adenocarcinoma of the prostate, documented by bone or soft tissue lesions.
3. Patients with castration-resistant prostate cancer with a blood testosterone level of less than 50 ng/dL at the screening visit.
4. patients with metastatic castration-resistant prostate cancer (mCRPC) who meet the following criteria (based on PCWG3.0 modified RECIST 1.1)

1\) Prior taxane therapy for metastatic prostate cancer or confirmed refusal or inadequacy of such therapy 2) Patients who have received prior docetaxel and at least one of the following agents: abiraterone acetate or enzalutamide before or after docetaxel treatment 3) Patients with progression of prostate cancer during/after prior therapy, in the investigator's judgment, with either of the following, in the internal or external castration state

1. PSA progression defined as at least 2 PSA level increases (≥1 week interval between each test) and a PSA level of ≥2 ng/mL at Screening
2. Advanced soft tissue disease as defined by RECIST 1.1
3. Progressive bone disease defined as ≥2 new lesions on bone scan (per PCWG3)

5\. Patients who are on androgen deprivation therapy (ADT) of any kind (patients who have not undergone bilateral orchiectomy must begin internal castration therapy, such as luteinizing hormone-releasing hormone (LHRH) agonists, LHRH antagonists, or anti-androgenic agents, at least 4 weeks prior to Baseline and must continue for the entire duration of the study)

Exclusion Criteria

1. patient has an active autoimmune disease or is receiving systemic steroid therapy or in immunosuppressive status.
2. Patient has history of chemotherapy, radiation chemotherapy, biological therapy, immunotherapy, or radiation therapy within 4 weeks prior to the screening visit (In case of nitrosoureas or mitomycin, 6 weeks prior to the screening visit)
Minimum Eligible Age

19 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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SL VAXiGEN

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Cheol Kwak, MD, phD

Role: PRINCIPAL_INVESTIGATOR

Seoul National University Hospital

Chang Wook Jeong, MD, phD

Role: PRINCIPAL_INVESTIGATOR

Seoul National University Hospital

Locations

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Seoul National University Hospital

Seoul, , South Korea

Site Status RECRUITING

Countries

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South Korea

Central Contacts

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Yong Bok Seo, phD

Role: CONTACT

82-2-6098-2816

Other Identifiers

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SL-T10-001_P1

Identifier Type: -

Identifier Source: org_study_id

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