NCT07364357 A Phase I Study of CREPT-618 in Locally Advanced HCC

Eligibility & Interventions

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What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 1 is the earliest stage of human testing — safety and dosage are the primary focus. Visits are frequent and medical supervision is intensive. You will be among the first people to receive this treatment.

This trial targets 13 participants in total. It began in 2025-09-15 with a primary completion date of 2026-08-15.

Brief Summary

This is a single-center, open-label, dose-escalation Phase I clinical study designed to evaluate the safety (incidence of adverse events), maximum tolerated dose (MTD), optimal biological dose (OBD), and recommended Phase II dose (RP2D) of CREPT-618 in adult patients aged 18-75 with locally advanced hepatocellular carcinoma who have failed standard treatment. The study adopts a 3+3 dose escalation design for dose climbing, primarily consisting of three dose groups: low dose, medium dose, and high dose. Patient enrollment and dose escalation in each group will be based on safety evaluation results. Pharmacokinetic parameters and preliminary efficacy indicators will also be assessed.

Eligibility Criteria

Inclusion Criteria: * Age: 18-75 years old. * Diagnosis: Patients with histologically confirmed locally or advanced hepatocellular carcinoma (HCC) (BCLC stage C or ineligible for curative treatment). * Hepatitis B Status: Inactive hepatitis B virus infection with negative HBV-DNA viral load. * Informed Consent: Ability to understand and voluntarily sign the informed consent form. * Prior Treatment: Failed prior standard treatment. * ECOG Performance Status: ECOG performance status score of 0-2. * Measurable Disease: Presence of at least one measurable lesion according to RECIST 1.1 criteria. * Biomarker Status: Must be able to provide at least six unstained slides for testing, confirming both CREPT and ASGPR receptor positivity in liver cancer tissue. Alternatively, a tumor biopsy can be performed to confirm CREPT and ASGPR double positivity. H-score must be greater than 50% with a staining intensity of 2+. * Organ Function: Acceptable major organ function as defined by the following laboratory values: Platelets ≥ 70 × 10\^9/L Neutrophils ≥ 1.5 × 10\^9/L Hemoglobin ≥ 90 g/L Prothrombin time prolongation ≤ 6 seconds Renal function: Creatinine clearance (Ccr) \> 50 ml/min (calculated using the Cockcroft-Gault formula). * Life Expectancy: Expected life expectancy of at least 3 months. * Contraception: Male and female patients of childbearing potential must agree to use effective contraception (hormonal, barrier, or abstinence) during the study and for at least 6 months after the last dose of the study drug. Female patients of childbearing potential must have a negative serum pregnancy test within 7 days prior to enrollment. * Compliance: Patients must be compliant and willing to adhere to follow-up procedures. Exclusion Criteria: \- Prior Treatment: a) Received systemic anti-tumor therapy (chemotherapy, radiotherapy, biological therapy, cytokine therapy, immunotherapy) or participated in other therapeutic clinical studies within 4 weeks prior to the first dose of the study drug. This includes nitrosourea drugs or mitomycin C within 6 weeks prior to the first dose. Exceptions: i) Oral fluoropyrimidine drugs or small molecule targeted agents received more than 2 weeks or 5 half-lives before the first dose (whichever is longer, but not exceeding 28 days). ii) Traditional Chinese medicine for anti-tumor treatment received more than 2 weeks prior to the first dose. iii) Palliative bone-directed radiotherapy. b) Planned to undergo major surgery within 28 days before the start of the study treatment (diagnostic biopsies are permitted). c) Received systemic immunostimulants within 4 weeks or 5 half-lives (whichever is longer) prior to enrollment. d) Used systemic corticosteroids (prednisone \> 10 mg/d or equivalent dose) or other immunosuppressive drugs within 14 days before the start of study treatment. Exceptions include topical, ophthalmic, intra-articular, intranasal, and inhaled corticosteroids, or short-term use of corticosteroids for prophylactic purposes. * Autoimmune Disease: Active autoimmune disease or a history of autoimmune disease within the past 2 years. Exceptions: vitiligo, Graves' disease, Hashimoto's disease, or psoriasis that did not require systemic treatment within the past 2 years. * Severe Liver Decompensation: Presence of any of the following symptoms or abnormal indicators of severe liver function decompensation: Refractory ascites (unresponsive to diuretics or requiring frequent paracentesis); Hepatic encephalopathy ≥ Grade 2 (West Haven criteria); History of or current spontaneous bacterial peritonitis (SBP);Hepatorenal syndrome; History of esophagogastric variceal bleeding (within the last 3 months); Hepatic hydrothorax, hepatopulmonary syndrome, portal vein thrombosis (complete occlusion), or other severe liver-related complications; * Laboratory Values: Total bilirubin \> 3 mg/dL (51.3 μmol/L) Albumin \< 2.8 g/dL (28 g/L) INR \> 2.3 or prothrombin time prolongation \> 6 seconds ALT or AST \> 3 times the upper limit of normal (ALT \> 120 U/L, AST \> 105 U/L) Serum sodium \< 130 mmol/L Serum creatinine \> 1.5 mg/dL (133 μmol/L); * Severe Infection/Comorbidities: 1. Positive for HIV or a known history of AIDS. 2. Positive for Hepatitis C virus (anti-HCV or HCV-RNA). (Patients with Hepatitis B may be included if they are receiving and willing to continue antiviral treatment according to local guidelines). 3. Interstitial lung disease, obstructive lung disease, active bronchospasm, or oxygen saturation \< 93% ("pulmonary insufficiency"), or any other active or severe pulmonary disease that may cause severe respiratory distress. * Unresolved Toxicity: Unresolved toxicities from prior anti-cancer treatment that have not recovered to ≤ Grade 1. Exceptions may include toxicities judged by the investigator to not pose a safety risk (e.g., alopecia, Grade 2 peripheral neuropathy, or stable hypothyroidism on hormone replacement therapy). * Comorbidities: Uncontrolled diabetes (fasting blood glucose \> 200 mg/dL or 11.1 mmol/L), severe cardiovascular disease (e.g., myocardial infarction within the last 6 months, unstable angina, NYHA Class III-IV heart failure), etc. * Brain Metastases: Patients with symptomatic active brain or meningeal metastases, primary central nervous system (CNS) tumors, or CNS metastases that have failed local treatment. Patients with asymptomatic or stable CNS metastases for at least 28 days without steroid use and confirmed as stable on a screening scan may be included. * Other Malignancies: A history of other active malignancies within 5 years prior to enrollment, excluding basal cell or squamous cell skin cancer, cervical carcinoma in situ, papillary thyroid cancer, ductal carcinoma in situ of the breast, or other malignancies for which the patient has been disease-free for more than 5 years. * Vaccination: Received live attenuated vaccines within 28 days prior to the first dose of the study drug. During the study, no vaccines other than inactivated vaccines (e.g., inactivated influenza vaccine) are permitted. * Prior Immunotherapy: History of immunotherapy (including anti-CTLA-4/anti-PD-L1 or other agents) with any unresolved irAEs \> Grade 1 prior to the first dose, or a history of irAEs ≥ Grade 3. Also, known allergy to any component of the CREPT-618 formulation. * Other: Received liver transplant evaluation or planned liver transplant within 4 weeks prior to the first dose, or planned during the study. Psychological/Compliance Issues: Patients with a mental disorder or poor compliance. Substance Abuse: Known history of alcohol or drug abuse. Pregnancy/Lactation: Pregnant or lactating female patients. Pregnancy is defined as a positive laboratory test for human chorionic gonadotropin (hCG) within 7 days before starting the study drug. Investigator Discretion: Any other severe physical or mental illness or abnormal laboratory finding that the investigator believes makes the patient unsuitable for this study.

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