Study of CHS-388 (Formerly Known as SRF388) in Patients With Advanced Solid Tumors
NCT ID: NCT04374877
Last Updated: 2025-11-10
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
COMPLETED
PHASE1
145 participants
INTERVENTIONAL
2020-04-22
2025-06-05
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
* Part A: CHS-388 monotherapy dose-escalation portion of the study will evaluate the safety, tolerability, PK, pharmacodynamics, and preliminary efficacy of CHS-388 as monotherapy in patients with advanced solid tumors.
* Part B: CHS-388 monotherapy expansion cohorts will evaluate the safety, efficacy, tolerability, PK, and pharmacodynamics of CHS-388 monotherapy in patients with advanced or metastatic ccRCC, advanced or metastatic HCC, and advanced or metastatic NSCLC in indication specific cohorts.
* Part C will evaluate the safety, preliminary efficacy, tolerability, and PK of CHS-388 in combination with pembrolizumab in patients with advanced RCC,HCC, or NSCLC.
* Part D will evaluate the safety, preliminary efficacy, tolerability, and PK of CHS-388 in combination with toripalimab in patients with advanced NSCLC.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Keywords
Explore important study keywords that can help with search, categorization, and topic discovery.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
NON_RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
Part A Monotherapy Dose Escalation
The Part A monotherapy dose escalation portion of the study will evaluate the safety, tolerability, PK, pharmacodynamics, and preliminary efficacy of CHS-388 as monotherapy in up to 30 patients with advanced solid tumors.
CHS-388
CHS-388 is a fully human IgG1 antibody against IL-27. Inhibition of IL-27 with CHS-388 reduces STAT1 phosphorylation leading to increased pro-inflammatory (anti-tumor) cytokine secretion (e.g., IFN-g, TNF-a) and decreased expression of inhibitory immune checkpoint receptors (e.g., PD-L1, TIGIT, LAG3) on immune cells that may result in anticancer therapeutic activity.
Part B CHS-388 Monotherapy Expansion
Part B monotherapy expansion will evaluate the safety, tolerability, PK, pharmacodynamics, and efficacy of CHS-388 monotherapy at the recommended phase 2 dose (RP2D) in up to 40 patients with ccRCC, up to 40 patients with HCC, and up to 40 patients with NSCLC.
CHS-388
CHS-388 is a fully human IgG1 antibody against IL-27. Inhibition of IL-27 with CHS-388 reduces STAT1 phosphorylation leading to increased pro-inflammatory (anti-tumor) cytokine secretion (e.g., IFN-g, TNF-a) and decreased expression of inhibitory immune checkpoint receptors (e.g., PD-L1, TIGIT, LAG3) on immune cells that may result in anticancer therapeutic activity.
Part C CHS-388 in Combination with Pembrolizumab
Part C will evaluate the safety, preliminary efficacy, tolerability, and PK of CHS-388 in combination with pembrolizumab in patients with advanced RCC or HCC, or anti-PD(L)1 relapsed/refractory advanced NSCLC.
CHS-388
CHS-388 is a fully human IgG1 antibody against IL-27. Inhibition of IL-27 with CHS-388 reduces STAT1 phosphorylation leading to increased pro-inflammatory (anti-tumor) cytokine secretion (e.g., IFN-g, TNF-a) and decreased expression of inhibitory immune checkpoint receptors (e.g., PD-L1, TIGIT, LAG3) on immune cells that may result in anticancer therapeutic activity.
Pembrolizumab
Pembrolizumab by intravenous (IV) infusion
Part D CHS-388 in Combination with Toripalimab
Part D will evaluate the safety, preliminary efficacy, tolerability, and PK of CHS-388 in combination with toripalimab in patients with anti-PD(L)1 relapsed/refractory advanced NSCLC.
CHS-388
CHS-388 is a fully human IgG1 antibody against IL-27. Inhibition of IL-27 with CHS-388 reduces STAT1 phosphorylation leading to increased pro-inflammatory (anti-tumor) cytokine secretion (e.g., IFN-g, TNF-a) and decreased expression of inhibitory immune checkpoint receptors (e.g., PD-L1, TIGIT, LAG3) on immune cells that may result in anticancer therapeutic activity.
Toripalimab
Toripalimab by IV infusion
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
CHS-388
CHS-388 is a fully human IgG1 antibody against IL-27. Inhibition of IL-27 with CHS-388 reduces STAT1 phosphorylation leading to increased pro-inflammatory (anti-tumor) cytokine secretion (e.g., IFN-g, TNF-a) and decreased expression of inhibitory immune checkpoint receptors (e.g., PD-L1, TIGIT, LAG3) on immune cells that may result in anticancer therapeutic activity.
Pembrolizumab
Pembrolizumab by intravenous (IV) infusion
Toripalimab
Toripalimab by IV infusion
Other Intervention Names
Discover alternative or legacy names that may be used to describe the listed interventions across different sources.
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
* Locally advanced or metastatic (Stage IV) solid tumor that has progressed during or after standard therapy, and for whom no available therapies are appropriate (based on investigator judgment)
* Patients in Part B with advanced or metastatic ccRCC, HCC, or NSCLC must have at least 1 measurable lesion per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1
* Patients with HCC in Part B must have at least 1 measurable target lesion according to modified RECIST (mRECIST)
* Patients with HCC must have unresectable disease, Barcelona Clinic Liver Cancer (BCLC1) Stage B (not eligible for transcatheter arterial chemoembolization \[TACE\]) or Stage C
* For patients in Part B with ccRCC, demonstrated progressive disease (PD) during or after the most recent treatment regimen. Prior treatment history must include progression during or after treatment with regimen(s) that have included a vascular endothelial growth factor (VEGF)-targeted agent and an immune checkpoint inhibitor. Patients who did not progress on but discontinued the VEGF-targeted agent for toxicity or intolerability are permitted.
* For patients in Part B with HCC, demonstrated PD during or after the most recent treatment regimen. Prior treatment history must include progression during or after treatment with a VEGF-targeted agent. Patients who did not progress on but discontinued the VEGF-targeted agent for toxicity or intolerability are permitted.
* For Part B patients in the tumor biopsy subsets only, must have tumor tissue that is accessible for pretreatment and on-treatment tumor biopsy in the opinion of the Investigator and be willing to undergo pretreatment and on-treatment biopsies per protocol
* Serum creatinine clearance ≥ 30 mL/min per Cockcroft-Gault formula or serum creatinine ≤ 2.0 x the upper limit of normal (ULN)
* Total bilirubin ≤ 1.5 x ULN (≤ 3 x ULN if elevated because of Gilbert's syndrome and ≤ 2 x ULN for patients with HCC or patients with known liver metastases)
* Aspartate aminotransferase (AST/SGOT) and alanine aminotransferase/serum glutamic pyruvic transaminase (ALT/SGPT) \< 2.5 x ULN (\< 5 x ULN if liver metastasis or for patients with HCC)
* For patients with HCC, Child-Pugh class A or B7 with a serum albumin ≥ 2.8 g/dL (≥ 28 g/L)
* Adequate hematologic function, defined as absolute neutrophil count (ANC) ≥ 1.0 x 109/L, hemoglobin ≥ 9.0 g/dL, and platelet count ≥ 100 x 109/L. For patients with HCC, platelet count ≥ 75 x 109/L without transfusion
* Eastern Cooperative Oncology Group (ECOG) performance status 0-1
* Patients with NSCLC must have histologically confirmed locally advanced and/or metastatic Stage IV NSCLC
* Patients with NSCLC must have demonstrated progressive disease during or after the most recent treatment regimen
* ≥ 18 years of age
* Advanced RCC of any histology or advanced HCC previously treated with at least one systemic anticancer therapy OR histologically or cytologically confirmed metastatic or unresectable adenocarcinoma or squamous cell NSCLC
* Patients with HCC must have unresectable disease, Barcelona Clinic Liver Cancer (BCLC) Stage B (not eligible for transcatheter arterial chemoembolization) or Stage C
* At least 1 measurable lesion per RECIST 1.1
* Patients with HCC must have at least 1 measurable target lesion according to modified RECIST (mRECIST)
* ECOG performance status of 0-1
* ANC ≥1500/µL (1.5 x 109/L)
* Platelets ≥100 000/µL (≥ 100 x 109/L)
* Hemoglobin for participants with RCC: ≥9.0 g/dL; for participants with HCC: ≥8.5 g/dL
* Creatinine OR measured or calculated creatinine clearance (GFR can also be used in place of creatinine or CrCl) ≤1.5 × ULN OR ≥30 mL/min for participant with creatinine levels \>1.5 × institutional ULN
* Total bilirubin ≤1.5 × ULN OR direct bilirubin ≤ULN for participants with total bilirubin levels \>1.5 × ULN
* AST (SGOT) and ALT (SGPT) ≤2.5 × ULN (≤5 × ULN for participants with liver metastases)
* International normalized ratio (INR) OR prothrombin time (PT) Activated partial thromboplastin time (aPTT) ≤1.5 × ULN unless participant is receiving anticoagulant therapy as long as PT or aPTT is within therapeutic range of intended use of anticoagulants
* For patients with HCC, Child-Pugh Class A or B7 with a serum albumin ≥ 2.8 g/dL (≥ 28 g/L)
* Willingness of male and female patients who are not surgically sterile or postmenopausal to use medically acceptable methods of birth control for the duration of the study drug period (or beginning 14 days before the initiation of pembrolizumab for oral contraception), including 75 days after the last dose of CHS-388 or 120 days after the last dose of pembrolizumab; male patients must refrain from donating sperm during this period. Sexually active men, and women using oral contraceptive pills, should also use barrier contraception with spermicide. Azoospermic male patients and WCBP who are continuously not heterosexually active are exempt from contraceptive requirements. However, female patients must still undergo pregnancy testing as described in this section.
* Progressed on CHS-388 by RECIST 1.1
* Did not experience prior Grade ≥ 3 toxicity related to CHS-388
* Willingness to undergo pretreatment core or excisional biopsy if deemed safe and tumor is accessible, in the opinion of the Investigator
* Has received no systemic anticancer therapies between CHS-388 doses
* No more than 3 prior lines of systemic therapy for unresectable or metastatic disease with prior radiologic progression on or following platinum-based chemotherapy and prior anti-PD-(L)1 therapy whether given alone or in combination
* ≥ 18 years of age
* Histologically or cytologically confirmed metastatic or unresectable adenocarcinoma or squamous cell NSCLC
* No more than 3 prior lines of systemic therapy for unresectable or metastatic disease with prior radiologic progression on or following platinum-based chemotherapy and prior anti-PD-(L)1 therapy whether given alone or in combination
* At least 1 measurable lesion per RECIST 1.1
* ECOG performance status of 0-1
* ANC ≥1500/µL (1.5 x 109/L)
* Platelets ≥100 000/µL (≥ 100 x 109/L)
* Hemoglobin for participants with RCC: ≥9.0 g/dL
* Creatinine OR measured or calculated creatinine clearance (GFR can also be used in place of creatinine or CrCl) ≤1.5 × ULN OR ≥30 mL/min for participant with creatinine levels \>1.5 × institutional ULN
* Total bilirubin ≤1.5 × ULN OR direct bilirubin ≤ULN for participants with total bilirubin levels \>1.5 × ULN
* AST (SGOT) and ALT (SGPT) ≤2.5 × ULN (≤5 × ULN for participants with liver metastases)
* International normalized ratio (INR) OR prothrombin time (PT) Activated partial thromboplastin time (aPTT) ≤1.5 × ULN unless participant is receiving anticoagulant therapy as long as PT or aPTT is within therapeutic range of intended use of anticoagulants
* Willingness of male and female patients who are not surgically sterile or postmenopausal to use medically acceptable methods of birth control for the duration of the study drug period (or beginning 14 days before the initiation of pembrolizumab for oral contraception), including 75 days after the last dose of CHS-388 or 180 days after the last dose of toripalimab; male patients must refrain from donating sperm during this period. Sexually active men, and women using oral contraceptive pills, should also use barrier contraception with spermicide. Azoospermic male patients and WCBP who are continuously not heterosexually active are exempt from contraceptive requirements. However, female patients must still undergo pregnancy testing as described in this section.
Exclusion Criteria
* For patients in Part B with renal cell carcinoma (RCC), non-clear cell RCC histology
* For patients with HCC, known fibrolamellar or mixed hepatocellular cholangiocarcinoma
* History of Grade 4 allergic or anaphylactic reaction to any monoclonal antibody therapy or any excipient in the study drugs
* Major surgery within 4 weeks prior to Screening
* Unstable or severe uncontrolled medical condition (eg, unstable cardiac function, unstable pulmonary condition including pneumonitis and/or interstitial lung disease, uncontrolled diabetes) or any important medical illness or abnormal laboratory finding that would, in the Investigator's judgment, increase the risk to the patient associated with his or her participation in the study
* Is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks prior to the first dose of study drug
* Previously received an anti-IL 27 antibody or anti-IL 27 targeted therapy (exception to patients who received CHS-388 in Part A or Part B)
* No prior systemic therapy for unresectable or metastatic disease
* Received \> 4 prior systemic regimens for unresectable or metastatic disease (prior PD-(L)1 inhibitors are allowed if the patient did not discontinue therapy due to ≥ Grade 3 drug-related toxicity)
* For patients with HCC, fibrolamellar histology or mixed hepatocellular cholangiocarcinoma
* For patients with HCC, moderate or severe ascites
* For patients with HCC, inability to undergo disease evaluation with triphasic computed tomography or magnetic resonance imaging because of contrast allergy or other contraindication
* For patients with HCC, imaging findings consistent with ≥ 50% liver occupation by HCC tumors
* History of Grade 4 allergic or anaphylactic reaction to any monoclonal antibody therapy or any excipient in the study drugs
* Surgeries that required general anesthesia must be completed at least 2 weeks before first study drug administration
* Prior autologous stem cell transplant ≤ 3 months before the first dose
* Prior allogeneic hematopoietic cell transplant within 6 months of the first dose or with a history of or current clinical Graft-Versus-Host Disease
* Has had an allogenic tissue/solid organ transplant
* Other unstable or severe uncontrolled medical condition (eg, unstable cardiac function, unstable pulmonary condition, uncontrolled diabetes) or any important medical illness or abnormal laboratory finding that would, in the Investigator's judgment, increase the risk to the patient associated with his or her participation in the study
* Is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks prior to the first dose of study drug
* Previously received an anti-IL 27 antibody or anti-IL 27 targeted therapy (exception to patients who received CHS-388 in Part A or Part B)
* No prior systemic therapy for unresectable or metastatic disease
* Received \> 4 prior systemic regimens for unresectable or metastatic disease (prior PD-(L)1 inhibitors are allowed if the patient did not discontinue therapy due to ≥ Grade 3 drug-related toxicity)
* Has received prior therapy with an anti-PD-1, anti-PD-L1, or anti-PD-L2 agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (e.g., CTLA-4, OX 40, CD137), and was discontinued from that treatment due to a ≥ Grade 3 irAE.
because of contrast allergy or other contraindication
* History of Grade 4 allergic or anaphylactic reaction to any monoclonal antibody therapy or any excipient in the study drugs
* Surgeries that required general anesthesia must be completed at least 2 weeks before first study drug administration
* Prior autologous stem cell transplant ≤ 3 months before the first dose
* Prior allogeneic hematopoietic cell transplant within 6 months of the first dose or with a history of or current clinical Graft-Versus-Host Disease
* Has had an allogenic tissue/solid organ transplant
* Other unstable or severe uncontrolled medical condition (eg, unstable cardiac function, unstable pulmonary condition, uncontrolled diabetes) or any important medical illness or abnormal laboratory finding that would, in the Investigator's judgment, increase the risk to the patient associated with his or her participation in the study
18 Years
ALL
No
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Merck Sharp & Dohme LLC
INDUSTRY
Coherus Oncology, Inc.
INDUSTRY
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Koho Iizuka, MD
Role: STUDY_CHAIR
Coherus BioSciences
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
City of Hope
Duarte, California, United States
University of Southern California (USC) - Norris Comprehensive Cancer Center
Los Angeles, California, United States
UCSF Medical Center - Helen Diller Family Comprehensive Cancer Center
San Francisco, California, United States
University of Miami Leonard M. Miller School of Medicine (UMMSM)
Miami, Florida, United States
Moffitt Cancer Center
Tampa, Florida, United States
Dana Farber Cancer Institute
Boston, Massachusetts, United States
University of Michigan Health System (UMHS)
Ann Arbor, Michigan, United States
Washington University School of Medicine - St. Louis
St Louis, Missouri, United States
Roswell Park
Buffalo, New York, United States
Icahn School of Medicine at Mount Sinai (ISMMS) - The Mount Sinai Hospital (MSH)
New York, New York, United States
Cleveland Clinic
Cleveland, Ohio, United States
University of Oklahoma Health Sciences Center (OUHSC) - Stephenson Cancer Center
Oklahoma City, Oklahoma, United States
University of Pittsburgh Medical Center (UPMC) - Hillman Cancer Center (University of Pittsburgh Cancer Institute (UPCI))
Pittsburgh, Pennsylvania, United States
Vanderbilt University Medical Center (VUMC)
Nashville, Tennessee, United States
University of Texas Southwestern Medical Center
Dallas, Texas, United States
The University of Texas - MD Anderson Cancer Center
Houston, Texas, United States
South Texas Accelerated Research Therapeutics
San Antonio, Texas, United States
University of Washington
Seattle, Washington, United States
National University Hospital
Singapore, , Singapore
National Cancer Center Singapore (NCCS)
Singapore, , Singapore
Seoul National University Hospital
Seoul, , South Korea
Severance Hospital
Seoul, , South Korea
Asan Medical Center
Seoul, , South Korea
Countries
Review the countries where the study has at least one active or historical site.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
KEYNOTE-C16
Identifier Type: OTHER
Identifier Source: secondary_id
MK-3475-C16
Identifier Type: OTHER
Identifier Source: secondary_id
SRF388-101
Identifier Type: -
Identifier Source: org_study_id