ADG126 in Combination With Pembrolizumab in Patients With Advanced/Metastatic Solid Tumors

NCT ID: NCT05405595

Last Updated: 2026-01-07

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/PHASE2

Total Enrollment

186 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-06-15

Study Completion Date

2027-04-30

Brief Summary

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This is a Phase 1b/2, open-label, dose escalation, dose expansion and dose optimization study to evaluate the safety, tolerability, PK, and immunogenicity of ADG126-pembrolizumab combination regimens in patients with advanced/metastatic solid tumors.

The study drug ADG126 is an anti-CTLA-4 fully human monoclonal antibody that specifically binds to human CTLA-4. Pembrolizumab is a PD-1 receptor-blocking antibody (a humanized IgG4 monoclonal antibody).

Detailed Description

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This is a Phase 1b/2, open-label, multicenter, dose escalation, dose expansion and dose optimization study to evaluate the safety, tolerability, PK, and preliminary efficacy of ADG126-Pembrolizumab or ADG126-Pembrolizumab in combination with trifluridine/tipiracil-bevacizumab or fruquintinib in patients with advanced/metastatic solid tumors, with a focus on MSS CRC.

In Phase 2, the study will use a randomized design to evaluate the dose optimization regimen in patients with MSS CRC for ADG126- Pembrolizumab doublet only.

Conditions

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Advanced/Metastatic Solid Tumors

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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ADG126 in combination with Pembrolizumab (Trade name KEYTRUDA®)

An IV infusion of ADG126 over 60-90 minutes will be administered 30-60 minutes after administration of pembrolizumab (KEYTRUDA®) infusion. A treatment cycle will consist of 21 days. ADG126 and Pembrolizumab (KEYTRUDA®) combination treatment both will be dosed until progressive disease (PD), intolerable toxicities, withdrawals of consent, or up to 35 cycles.

Group Type EXPERIMENTAL

ADG126

Intervention Type DRUG

ADG126 is an anti-CTLA-4 fully human monoclonal antibody that specifically binds to human CTLA-4.

Pembrolizumab (KEYTRUDA®)

Intervention Type DRUG

Pembrolizumab (KEYTRUDA®) is a PD-1 receptor-blocking antibody (a humanized IgG4 monoclonal antibody).

ADG126 and pembrolizumab (KEYTRUDA®) in combination with Trifluridine/Tipiracil-Bevacizumab

To evaluate the preliminary antitumor efficacy of ADG126 and Pembrolizumab (KEYTRUDA®) in combination with SOC (Trifluridine/Tipiracil-Bevacizumab) while assessing safety and tolerability. Standard of care treatment will be administered according to the specifications outlined in the Investigational Brochure. Will be dosed until progressive disease (PD), intolerable toxicities, withdrawals of consent, or up to 35 cycles.

Group Type EXPERIMENTAL

ADG126

Intervention Type DRUG

ADG126 is an anti-CTLA-4 fully human monoclonal antibody that specifically binds to human CTLA-4.

Pembrolizumab (KEYTRUDA®)

Intervention Type DRUG

Pembrolizumab (KEYTRUDA®) is a PD-1 receptor-blocking antibody (a humanized IgG4 monoclonal antibody).

Standard of Care (Trifluridine/Tipiracil-Bevacizumab)

Intervention Type DRUG

The standard of care therapies will include Trifluridine/Tipiracil-Bevacizumab, approved for treating metastatic colorectal cancer (CRC)and various solid tumors.

ADG126 and pembrolizumab (KEYTRUDA®) in combination with fruquintinib

To evaluate the preliminary antitumor efficacy of ADG126 and Pembrolizumab (KEYTRUDA®) in combination with SOC (Fruquintinib) while assessing safety and tolerability. The dose strength for treatment will be based on the IB and protocol. Fruquintinib (Fruzaqla) is orally given once daily for the first 21 days of each 28-day cycle. Each treatment cycle consists of 14 days. Will be dosed until progressive disease (PD), intolerable toxicities, withdrawals of consent, or up to 35 cycles.

Group Type EXPERIMENTAL

ADG126

Intervention Type DRUG

ADG126 is an anti-CTLA-4 fully human monoclonal antibody that specifically binds to human CTLA-4.

Pembrolizumab (KEYTRUDA®)

Intervention Type DRUG

Pembrolizumab (KEYTRUDA®) is a PD-1 receptor-blocking antibody (a humanized IgG4 monoclonal antibody).

Standard of care (Fruquintinib)

Intervention Type DRUG

The standard of care therapy, Fruquintinib, is approved for treating metastatic colorectal cancer (CRC) and various solid tumors.

Dose Optimization

The randomized phase 2 Dose Optimization arm is intended to test two dosing regimens of ADG126 in combination with pembrolizumab (KEYTRUDA®), which allows the selection of an optimal regimen. The study treatments may continue for up to 35 treatments for pembrolizumab (KEYTRUDA®) if given every 21 days and 18 treatments for pembrolizumab (KEYTRUDA®) if given every 42 days until PD, intolerable toxicities or withdrawal of consent.

Group Type EXPERIMENTAL

ADG126

Intervention Type DRUG

ADG126 is an anti-CTLA-4 fully human monoclonal antibody that specifically binds to human CTLA-4.

Pembrolizumab (KEYTRUDA®)

Intervention Type DRUG

Pembrolizumab (KEYTRUDA®) is a PD-1 receptor-blocking antibody (a humanized IgG4 monoclonal antibody).

Interventions

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ADG126

ADG126 is an anti-CTLA-4 fully human monoclonal antibody that specifically binds to human CTLA-4.

Intervention Type DRUG

Pembrolizumab (KEYTRUDA®)

Pembrolizumab (KEYTRUDA®) is a PD-1 receptor-blocking antibody (a humanized IgG4 monoclonal antibody).

Intervention Type DRUG

Standard of Care (Trifluridine/Tipiracil-Bevacizumab)

The standard of care therapies will include Trifluridine/Tipiracil-Bevacizumab, approved for treating metastatic colorectal cancer (CRC)and various solid tumors.

Intervention Type DRUG

Standard of care (Fruquintinib)

The standard of care therapy, Fruquintinib, is approved for treating metastatic colorectal cancer (CRC) and various solid tumors.

Intervention Type DRUG

Other Intervention Names

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KEYTRUDA® Lonsurf and Avastin Fruzaqla

Eligibility Criteria

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Inclusion Criteria

1. ≥18 years of age at the time of informed consent.
2. Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1.
3. Wash out period from previous antitumor therapies
4. At least 1 measurable lesion at baseline according to the definition of RECIST v1.1.
5. Adequate organ function.
6. An archival tumor biopsy is required and should be taken within 2 years of enrollment. If not available, a fresh tumor biopsy is acceptable.
7. For Dose Escalation Phase Only: Patients with histologically or cytologically confirmed, locally advanced or metastatic solid tumors, who have progressed after all standard therapies, or for whom no further standard therapy exists.
8. Dose Expansion Phase Only: Tumor tissues (archived tissue) before treatment are required for all patients.

Exclusion Criteria

1. Pregnant or breastfeeding females.
2. Childbearing potential who does not agree to the use of contraception during the treatment period.
3. Treatment with any investigational drug within washout period.
4. Prior treatment with a PD-1, PD-L1 targeting agent or a next-generation anti-CTLA-4 therapy with enhanced ADCC function.
5. History of significant irAEs or irAE.
6. Central nervous system (CNS) disease involvement.
7. History or risk of autoimmune disease.
8. Patients requiring systemic treatment with corticosteroids or other immunosuppressive medications (\>10 mg/day prednisone or equivalent).
9. Any uncontrolled active infections requiring systemic antimicrobial treatment (viral, bacterial, or other), or uncontrolled or poorly controlled, asthma, chronic obstructive pulmonary disease (COPD).
10. Major surgery within 4 weeks prior to the first dose of the study drug.
11. Has had an allogeneic tissue/solid organ transplant.
12. Has received a COVID-19 vaccine within 7 days prior to the first dose of study treatment. Has received a live or live-attenuated vaccine within 30 days prior to the first dose of study treatment. Note: Administration of killed vaccines are allowed.
13. A positive COVID-19 test within 14 days of Cycle 1 Day 1.
14. History of Hypersensitivity or known to be allergic to protein drugs or recombinant protein.
15. Active hemoptysis or central airway invasion by metastatic tumor.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Merck Sharp & Dohme LLC

INDUSTRY

Sponsor Role collaborator

Adagene Inc

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jiping Zha, MD, PhD

Role: STUDY_DIRECTOR

Adagene Inc

Locations

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Honor Health Research Institute

Scottsdale, Arizona, United States

Site Status RECRUITING

City of Hope National Medical Center

Duarte, California, United States

Site Status RECRUITING

City of Hope Orange County

Irvine, California, United States

Site Status RECRUITING

Florida cancer specialist/Sarah Cannon Research Institute

Sarasota, Florida, United States

Site Status ACTIVE_NOT_RECRUITING

The Cleveland Clinic

Cleveland, Ohio, United States

Site Status RECRUITING

MD Anderson Cancer Center

Houston, Texas, United States

Site Status RECRUITING

Fred Hutchinson Cancer Center

Seattle, Washington, United States

Site Status RECRUITING

Fujian Cancer Hospital

Fuzhou, Fujian, China

Site Status RECRUITING

SunYat-Sen University Cancer Center

Guangzhou, Guangdong, China

Site Status RECRUITING

Hong Kong Humanity & Health Clinical Trial Center

Hong Kong, Hong Kong, China

Site Status RECRUITING

Prince of Wales Hospital

Hong Kong, Hong Kong, China

Site Status RECRUITING

Dong -A University Hospital

Seogu, Busan Gwangyeogsi, South Korea

Site Status TERMINATED

CHA Bundang Medical Center, CHA university

Seongnam, Gyeonggido, South Korea

Site Status RECRUITING

The Catholic University of Korea Street. Vincent Hospital

Suwon, Gyeonggido, South Korea

Site Status TERMINATED

Chungbuk National University Hospital

Cheongju-si, North Chungcheong, South Korea

Site Status RECRUITING

Samsung Medical Center

Seoul, Seoul Teugbyeolsi, South Korea

Site Status RECRUITING

Keimyung University Dongsan Hospital

Daegu, , South Korea

Site Status TERMINATED

Seoul National University Hospital

Seoul, , South Korea

Site Status RECRUITING

KangBuk Samsung Hospital

Seoul, , South Korea

Site Status TERMINATED

Asan Medical Center

Seoul, , South Korea

Site Status RECRUITING

Severance Hospital Yonsei University Health System

Seoul, , South Korea

Site Status RECRUITING

Countries

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United States China South Korea

Central Contacts

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Xiaohong She, MS

Role: CONTACT

408-838-9296

Jiping Zha, MD, PhD

Role: CONTACT

650-785-9347

Facility Contacts

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Sharma Sunil, MD

Role: primary

Daneng Li, MD

Role: primary

Marwan Fakih, MD

Role: backup

Pashtoon Kasi, MD

Role: primary

Smitha Krishnamurthi, MD

Role: primary

David Hong, MD

Role: primary

Mary Trahan

Role: backup

Rachael Safyan, MD

Role: primary

Yu Chen, MD

Role: primary

Ruihua Xu, MD

Role: primary

George Lau, MD

Role: primary

Brigette B.Y Ma, MD

Role: primary

Hing Jae Chon, MD

Role: primary

Song I Kang

Role: backup

Ki Hyeong Lee, MD

Role: primary

Hee Kyung Kim, MD

Role: backup

Byoung Yong Shim, MD

Role: primary

Jee Yun Lee, MD

Role: backup

Seock -Ah Im, MD

Role: primary

Sae Won Han, MD

Role: backup

Sun Young Kim, MD

Role: primary

Ko Eun- Young

Role: backup

Sang Joon Shin, MD

Role: primary

Da Seul Lee

Role: backup

Other Identifiers

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KEYNOTE-C98, MK-3475-C98

Identifier Type: OTHER

Identifier Source: secondary_id

ADG126-P001

Identifier Type: -

Identifier Source: org_study_id

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