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A Study of HRXG-K-1939 and Adebrelimab in Patients With Advanced Solid Tumors

A Phase 1 Study to Evaluate the Efficacy and Safety of HRXG-K-1939 and Adebrelimab in Patients With Advanced Solid Tumors

Status
UNKNOWN
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05942378
Enrollment
30
Registered
2023-07-12
Start date
2023-07-01
Completion date
2025-12-01
Last updated
2023-07-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Solid Tumors

Brief summary

This is a Phase 1, open-label study evaluating the efficacy and safety of HRXG-K-1939 in combination with Adebrelimab (anti-programmed death-ligand 1 \[anti-PD-L1\] antibody) in patients with advanced solid tumors. HRXG-K-1939 will be administered to patients in a dose escalation regimen to determine a recommended dose for expansion.

Interventions

DRUGHRXG-K-1939

HRXG-K-1939

DRUGAdebrelimab

Adebrelimab is a programmed death-ligand 1 antibody

Sponsors

Fudan University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Voluntarily signed the informed consent form and complied with protocols requirements; 2. Patients with advanced solid tumors that are suitable for immunotherapy; 3. ECOG Performance Status of 0 or 1; 4. Life expectancy ≥ 12 weeks; 5. At least one measurable disease per RECIST v1.1; 6. Tumor specimen availability; 7. Adequate marrow and organ function; 8. Have resolution of toxic effects from prior therapy to Grade 1 or less (except for Grade ≤2 alopecia or neuropathy) per CTCAE v5.0; 9. Patients with fertility are willing to use an adequate method of contraception.

Exclusion criteria

1. Previously detected positive driver genes (EGFR, ALK, ROS1, etc.); 2. Have leptomeningeal, or actively progressing CNS metastases (patients with stable brain metastases can be enrolled); 3. Uncontrolled pleural effusion, pericardial effusion, or ascites; 4. Major surgical procedure within 28 days prior to initiation of study treatment or anticipation of need for a major surgical procedure during the course of the study; 5. Prior anti-cancer therapy (e.g., chemotherapy, radiotherapy, hormonal therapy, targeted therapy, immunotherapy, any other investigational or immunomodulatory drugs) within 21 days prior to initiation of study treatment; 6. Live-attenuated vaccination within 28 days prior to initiation of study treatment through 60 days after the end of study; 7. Systemic steroid therapy or other form of immunosuppressive therapy within 14 days prior to initiation of study treatment; 8. Any history of an immune-mediated Grade 4 adverse event or Grade 3 adverse event that resulted in permanent discontinuation; 9. Active or history of autoimmune disease; 10. Active tuberculosis or infection requiring treatment; 11. History of interstitial lung disease; 12. Allergic to research drug ingredients; 13. Prior malignancy within 5 years prior to study entry; 14. Solid organ or allogeneic bone marrow transplant; 15. HIV positive, HCV positive, HBV DNA copies ≥ 10\^3; 16. Significant cardiovascular disease; 17. Other situations that are not suitable for inclusion in this study judged by investigator

Design outcomes

Primary

MeasureTime frameDescription
Dose Escalation Phase:RP2D9 monthsDose Escalation Phase: Recommended Phase 2 Dose (RP2D) of HRXG-K-1939
• Dose Expansion Phase: Antigen-Specific T-cell Responses in Peripheral BloodBaseline through 12 months after last HRXG-K-1939 dose• Dose Expansion Phase: Antigen-Specific T-cell Responses in Peripheral Blood

Secondary

MeasureTime frameDescription
Objective Response Rate(ORR)12 monthsThe proportion of patients who have a CR or PR, as determined by the Investigator at local site per RECIST 1.1.
Disease Control Rate (DCR)12 monthsThe proportion of patients who have a CR or PR or SD, as determined by the Investigator at local site per RECIST 1.1.
Duration of Response (DoR)12 monthsTime from the date of first documented response until the date of documented progression or death in the absence of disease progression.
Progression Free Survival (PFS)12 monthsTime to progression as assessed by the Investigator at local site per RECIST 1.1, or death due to any cause.
Overall Survival (OS)24 monthsTime to death due to any cause
Adverse Events(AEs)From consent to 90 days after the final dose of study drugOccurrence of Adverse Events(AEs) graded according to CTCAE v5.0
Biomarker analysisBaseline through 12 months after last HRXG-K-1939 doseSerum cytokines (IL-10, IL-6, IL-2, TNF- α, IFN- γ ) Changes from baseline condition

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026