A Phase I Clinical Study to Evaluate the PK Profile, Efficacy, Safety and Immunogenicity of HLX17 vs. Keytruda® in Multiple Resected Solid Tumors
A Multicenter, Randomized, Double-Blind, Parallel-Controlled Phase I Clinical Study to Evaluate the Pharmacokinetic Profile, Efficacy, Safety and Immunogenicity of HLX17 vs. Keytruda® (US-sourced Keytruda®) in Multiple Resected Solid Tumors
1 other identifier
interventional
174
4 countries
69
Brief Summary
This is a multicenter, randomized, double-blind, parallel-controlled phase I clinical study to evaluate the similarity in PK profile, efficacy, safety, and immunogenicity of HLX17 vs. US-sourced Keytruda® in patients with resected non-small cell lung cancer (NSCLC) or melanoma (MEL), or renal cell carcinoma (RCC).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1 nonsmall-cell-lung-cancer
Started Sep 2025
69 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 22, 2025
CompletedFirst Posted
Study publicly available on registry
September 8, 2025
CompletedStudy Start
First participant enrolled
September 26, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 30, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
March 27, 2028
February 13, 2026
February 1, 2026
1.6 years
August 22, 2025
February 11, 2026
Conditions
Outcome Measures
Primary Outcomes (2)
AUC0-21d
Area under the serum concentration-time curve from time 0 to 21 days (AUC0-21d) after the 1st dose
rom time 0 to 21 days after the 1st dose (3 weeks)
AUCss
Area under the serum concentration-time curve within a dosing interval at steady state (AUCss) after the 6th dose
from time 0 to 21 days after the 6th dose (18 weeks)
Secondary Outcomes (11)
maximum serum drug concentration (Cmax),
up to 24 weeks
trough serum drug concentration at steady state (Ctrough,ss)
up to 24 weeks
maximum serum drug concentration at steady state (Cmax,ss)
up to 24 weeks
trough serum drug concentration (Ctrough)
up to 24 weeks
DFS
up to 12 months
- +6 more secondary outcomes
Study Arms (2)
HLX17
EXPERIMENTALSubjects will receive HLX17 (200 mg) on Day 1 of each 3-week cycle, until 12 months after the randomization (nearly 17 cycles) or investigator-assessed disease recurrence, death, initiation of new anti-tumor therapy, unacceptable drug toxicity, withdrawal of informed consent form, or study termination (whichever occurs first).
US-sourced Keytruda®
ACTIVE COMPARATORSubjects will receive US-sourced Keytruda® (200 mg) on Day 1 of each 3-week cycle, for a total of 8 cycles (24 weeks). After 8 cycles, all subjects in the US-sourced Keytruda® group will receive HLX17 200 mg on Day 1 of each 3-week cycle until 12 months after the randomization (nearly 17 cycles) or investigator-assessed disease recurrence, death, initiation of new anti-tumor therapy, unacceptable drug toxicity, withdrawal of informed consent form, or study termination (whichever occurs first).
Interventions
Subjects will receive US-sourced Keytruda® (200 mg) on Day 1 of each 3-week cycle
Subjects will receive HLX17 (200 mg) on Day 1 of each 3-week cycle
Eligibility Criteria
You may qualify if:
- Participants must have signed and dated an Institutional Review Board/Independent Ethics Committee (IRB/IEC) approved written informed consent form (ICF) in accordance with regulatory and institutional guidelines.
- At least 18 years and no older than 75 years (including 75 years old) at the time of signing the ICF.
- kg/m2 ≤ body mass index (BMI) ≤ 30 kg/m2 and 50 kg ≤ body weight ≤ 85 kg.
- The patient with one of the following resected solid tumors:
- NSCLC patients after complete resection OR
- Melanoma following complete resection OR
- Renal cell carcinoma (RCC) at intermediate-high or high risk of recurrence following nephrectomy, or following nephrectomy and resection of metastatic lesions.
- Have a performance status of 0 on the Eastern Cooperative Oncology Group (ECOG) Performance Status within 7 days prior to the first dose in this study.
- Have a life expectancy of at least 12 weeks.
- Have adequate organ function as indicated by the following laboratory values (no blood transfusions, or treatment with albumin, recombinant human thrombopoietin or colony-stimulating factor within 14 days prior to the first dose in this study)
- Female patients must meet one of the following conditions:
- Menopause (defined as no menstruation for at least 1 year with no confirmed cause other than menopause), or
- Surgically sterilized (removal of the ovaries and/or uterus), or
- Fertile, but must:
- be tested negative for serum/urine pregnancy test within 7 days prior to the randomization, and
- +3 more criteria
You may not qualify if:
- Pregnant or lactating women.
- History of illicit drug use or alcohol abuse within 12 months prior to randomization in the investigator's judgment.
- Participants with NSCLC have two synchronous primary non-small cell lung cancers or other histopathological types (such as mixed adenosquamous carcinoma, small cell lung cancer, or neuroendocrine carcinoma); known positive for EGFR sensitive mutations or ALK fusion. EGFR sensitive mutations include: exon 19 deletion mutation (19DEL) and exon 21 point mutation (21L858R).
- Participants with MEL have mucosal or ocular melanoma.
- Participants with RCC have pre-existing brain or bone metastatic lesions, or residual thrombus in the renal vein or vena cava after nephrectomy.
- Participants with other primary active malignancies within 5 years or at the same time prior to randomization.
- Have received an organ or bone marrow transplantation prior to randomization or scheduled for transplantation during the study.
- Presence of central nervous system (CNS) metastases and/or carcinomatous meningitis.
- Symptomatic cerebrovascular disease or known myocardial infarction or poorly controlled arrhythmia (including QTc intervals ≥ 450 ms for males and ≥ 470 ms for females calculated by Fridericia's formula) within 6 months prior to randomization.
- Chronic heart failure (Class III to IV based on NYHA classification) or an LVEF (left ventricular ejection fraction) assessed with the doppler echocardiography less than 50%.
- Peripheral neuropathy greater than or equal to Grade 2 (CTCAE).
- Known human immunodeficiency virus (HIV) infection (or positive anti-HIV during screening), or known Hepatitis B (or positive test for HBsAg or HBcAb and positive test for HBV-DNA during screening), or known Hepatitis C (or positive tests for HCV antibody and HCV-RNA during screening), or known Hepatitis B and C co-infection (or positive test for HBsAg or HBcAb and positive test for HCV antibody during screening), or active pulmonary tuberculosis within 6 months prior to randomization.
- Known interstitial pneumonia, pneumoconiosis, radiation pneumonitis, drug-related pneumonitis, and severe lung function abnormalities that may impede the investigators' diagnosis and management of drug-related pulmonary toxicity prior to screening.
- Known severe allergic or anaphylactic reactions to pembrolizumab or any other monoclonal antibody or any components of the investigational medicinal products.
- Known active or suspected autoimmune diseases. Patients with stable disease who do not require systemic immunosuppressive therapy may also participate.
- +9 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (69)
Oncology Physicians Network (OPN) - Glendale
Glendale, California, 91203, United States
Oncology Physicians Network (OPN)- Los Alamitos
Los Alamitos, California, 90720, United States
HCA
Los Angeles, California, 64132, United States
Los Angeles Cancer Network
Los Angeles, California, 92801, United States
Oncology Physicians Network (OPN) - San Bernardino
San Bernardino, California, 91203, United States
BRCR Global
Deerfield Beach, Florida, 33326, United States
D&H National Research Center
Margate, Florida, 33063, United States
Ocala Oncology
Ocala, Florida, 34474, United States
Mid Florida Hematology and oncology Center
Orange City, Florida, 32763, United States
Oncology Consulatants (P1 Trials -Exigent Network)
Houston, Texas, 77030, United States
American Oncology Network Vista Oncology Division
Olympia, Washington, 98506, United States
Northwest Medical Specialties PPLC (P1 Trials - Exigent Network )
Tacoma, Washington, 98405, United States
The First Affiliated Hospital of Anhui Medical University
Hefei, Anhui, 230022, China
The First Affiliated Hospital of Wannan Medical College
Wuhu, Anhui, 241004, China
Beijing Chest Hospital, Capital Medical University
Beijing, Beijing Municipality, 101149, China
Hunan Provincial Cancer Hospital
Hunan, Changsha, 410031, China
Fujian Cancer Hospital
Fuzhou, Fujian, 350000, China
The First Affiliated Hospital of Xiamen University
Xiamen, Fujian, 361003, China
The Second Hospital of Lanzhou University
Lanzhou, Gansu, 730030, China
Cangzhou Central Hospital
Cangzhou, Hebei, 061012, China
The Fourth Hospital of Hebei Medical University
Shijiazhuang, Hebei, 050035, China
The First Affiliated Hospital of Xinxiang Medical University
Xinxiang, Henan, 453100, China
Union Hospital Tongji Medical College Huazhong University of Science and Technology
Wuhan, Hubei, 430022, China
Zhongnan Hospital of Wuhan University
Wuhan, Hubei, 430071, China
Hubei Cancer Hospital
Wuhan, Hubei, 430079, China
The Third Xiangya Hospital of Central South University
Changsha, Hunan, 410006, China
Xiangya Hospital of Central South University
Changsha, Hunan, 410028, China
The First Affiliated Hospital of University of South China
Hengyang, Hunan, China
The Affiliated Hospital of Xuzhou Medical University
Xuzhou, Jiangsu, 221006, China
Jiangxi Cancer Hospital
Nanchang, Jiangxi, 330001, China
The First Affiliated Hospital of Nanchang University
Nanchang, Jiangxi, 330200, China
The First Hospital of Jilin University
Changchun, Jilin, 130000, China
Liaoning Cancer Hospital and Institute
Shenyang, Liaoning, 110042, China
Liaoning Cancer Hospital and Institute
Shenyang, Liaoning, China
Guangxi Medical University Cancer Center
Guangxi, Nanning, 530221, China
Binzhou Medical University Hospital
Binzhou, Shandong, 256603, China
Qilu Hospital of Shandong University
Jinan, Shandong, 250012, China
Cancer Hospital of Shandong First Medical University
Jinan, Shandong, 250117, China
Linyi Cancer Hospital
Linyi, Shandong, 276000, China
ShangHai Pulmonary Hospital
Shanghai, Shanghai Municipality, 200000, China
Shanghai Chest Hospital
Shanghai, Shanghai Municipality, 200030, China
Fudan University Shanghai Cancer Center
Shanghai, Shanghai Municipality, 200032, China
Zhongshan Hospital, Fudan University
Shanghai, Shanghai Municipality, 200032, China
Shanxi Bethune Hospital
Taiyuan, Shanxi, 030032, China
The First Affiliated Hospital of Xi'an Jiao Tong University
Xi’an, Shanxi, 710061, China
Yuebei People's Hospital
Guangdong, Shaoguan, 512000, China
West China Hospital of Sichuan University
Chengdu, Sichuan, 610000, China
Sichuan Cancer Hospital
Chengdu, Sichuan, 610041, China
Yunnan Cancer Hospital
Kunming, Yunnan, 650118, China
The First Affiliated Hospital Zhejiang University School of Medicine
Hangzhou, Zhejiang, 310003, China
Zhejiang Cancer Hospital
Hangzhou, Zhejiang, 310022, China
Taizhou Hospital of Zhejiang Province
Taizhou, Zhejiang, 317000, China
The First Affiliated Hospital of Wenzhou Medical University
Wenzhou, Zhejiang, 325000, China
The First Affiliated Hospital of Bengbu Medical College
Bengbu, 233000, China
LTD High Technology Hospital Medcenter
Batumi, 6000, Georgia
JSC Vian
Kutaisi, 4600, Georgia
Israel- Georgian Medical Research Clinic Healthycore
Tbilisi, 0112, Georgia
High Technology Medical Center, University Clinic
Tbilisi, 0144, Georgia
St. Michael's Hospital LLC
Tbilisi, 0159, Georgia
TIM - Tbilisi Institute of Medicine LLC
Tbilisi, 0160, Georgia
Caucasus Medical Centre LLC
Tbilisi, 0186, Georgia
Adana City Training and Research Hospital
Adana, 1370, Turkey (Türkiye)
Dr. Abdurrahman Yurtaslan Ankara Training and Research Hospital
Ankara, 6200, Turkey (Türkiye)
Hacettepe University Oncology Hospital
Ankara, 6230, Turkey (Türkiye)
Ankara University Hospital
Ankara, 6590, Turkey (Türkiye)
Ankara Bilkent City Hospital Department of Medical Oncology
Ankara, 6800, Turkey (Türkiye)
Gaziantep City Hospital
Gaziantep, 27470, Turkey (Türkiye)
Yeditepe University Kosuyolu Hospital
Istanbul, 34718, Turkey (Türkiye)
Izmir Economy University Medical Point Hospital
Izmir, 35575, Turkey (Türkiye)
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 22, 2025
First Posted
September 8, 2025
Study Start
September 26, 2025
Primary Completion (Estimated)
April 30, 2027
Study Completion (Estimated)
March 27, 2028
Last Updated
February 13, 2026
Record last verified: 2026-02
Data Sharing
- IPD Sharing
- Will not share