Status Approved
First Submitted Date
2022/06/20
Registered Date
2022/06/30
Last Updated Date
2022/06/30
CRIS Required
WHO ICTRP (International Clinical Trial Registry Platform) Required
1. Background
CRIS Registration Number |
KCT0007476 |
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Unique Protocol ID | 4-2022-0239 |
Public/Brief Title | Study of SMT-NK Inj. Plus Pembrolizumab vs Pembrolizumab Monotherapy in Patients With Advanced Biliary Tract Cancer |
Scientific Title | A multicenter, randomized, placebo-controlled, open-label, phase 2b clinical trial to evaluate the antitumor activity of combination therapy of SMT-NK (allogeneic natural killer cells) and pembrolizumab versus pembrolizumab monotherapy in patients with advanced biliary tract cancer |
Acronym | SNK-SIT-03 |
MFDS Regulated Study | Yes |
IND/IDE Protocol | Yes |
Registered at Other Registry | No |
Healthcare Benefit Approval Status | Not applicable |
2. Institutional Review Board / Ethics Committee
Board Approval Status | Submitted approval |
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Board Approval Number | 4-2022-0239 |
Approval Date | 2022-04-19 |
Institutional Review Board Name | Yonsei University Health System, Severance Hospital, Institutional Reveiw Board |
Institutional Review Board Address | 50-1, Yonsei-ro, Seodaemun-gu, Seoul |
Institutional Review Board Telephone | 02-2228-0435 |
Data Monitoring Committee | No |
3. Contact Details
Contact Person for Principal Investigator / Scientific Queries | |
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Name | SeungWoo Park |
Title | Professor |
Telephone | +82-2-2228-1964 |
Affiliation | Yonsei University |
Address | 50-1 Yonsei-ro,Seodaemun-gu,Seoul,South Korea 03722 |
Contact Person for Public Queries | |
Name | JUNGMIN IM |
Title | Director |
Telephone | +82-2-6297-0520 |
Affiliation | SMT Bio |
Address | #311,181 Gasan Digital 1-ro,Geumcheon-gu,Seoul,South Korea 08503 |
Contact Person for Updating Information | |
Name | JUNGMIN IM |
Title | Director |
Telephone | +82-2-6297-0520 |
Affiliation | SMT Bio |
Address | #311,181 Gasan Digital 1-ro,Geumcheon-gu,Seoul,South Korea 08503 |
4. Status
Study Site | Multi-center Number of center : 3 | |
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Overall Recruitment Status | Recruiting | |
Date of First Enrollment | 2022-06-09 Actual | |
Target Number of Participant | 128 | |
Primary Completion Date | 2025-01-08 , Anticipated | |
Study Completion Date | 2026-06-08 , Anticipated | |
Recruitment Status by Participating Study Site 1 | ||
Name of Study | Yonsei University Health System, Severance Hospital | |
Recruitment Status | Recruiting | |
Date of First Enrollment | 2022-07-08 , | |
Recruitment Status by Participating Study Site 2 | ||
Name of Study | Yonsei University Health System, Gangnam Severance Hospital | |
Recruitment Status | Recruiting | |
Date of First Enrollment | 2022-06-09 , | |
Recruitment Status by Participating Study Site 3 | ||
Name of Study | National Cancer Center | |
Recruitment Status | Recruiting | |
Date of First Enrollment | 2022-06-27 , |
5. Source of Monetary / Material Support
1. Source of Monetary/Material Support | |
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Organization Name | SMT Bio |
Organization Type | Research Institute |
Project ID | SNK-SIT-03 |
6. Sponsor Organization
1. Sponsor Organization | |
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Organization Name | SMT Bio |
Organization Type | Research Institute |
7. Study Summary
Lay Summary | The term of biliary tract cancer (BTC) refers to all tumors that arise from the biliary tract or the biliary drainage system, including the gallbladder.Biliary tract cancer is one of the most poorly prognosis cancers and the five-year survival rate remains at about 10% as it is difficult to expect long-term survival due to frequent local recurrence and remote metastasis after surgery.Korea belongs to a country with a high number of biliary tract cancer patients, and the incidence of biliary tract cancer is actually increasing every year.According to the 2018 National Cancer Registration Statistics, the number of 5-year biliary tract cancer patients was 13,967 (7,547 men and 6,420 women), which corresponds to about 2.9% of all cancersand the 5-year survival rate of biliary tract cancer patients between 2014 and 2018 was 28.8%, showing a lower survival rate than other cancer species.Most of the long-term survival is due to early detection by screening, but advanced carcinoma is a refractory carcinoma with a 5-year survival rate of less than 5%.In addition to standard anticancer drugs, alternative anticancer drugs and targeted treatments can be developed for cancer with a large number of patients, but biliary tract cancer is difficult to find any more treatments if standard treatment fails and standard anticancer treatments cannot be continued due to resistance. Natural killer cells (NK cells) are innate lymphocyte cells with cell killing activity, and have the characteristic of destroying cells by secretion of and granzyme into cancer cells and abnormal cells that are reduced or deficient in expression of MHC class I.Clinical studies using natural killer cells as anticancer drugs have long been conducted on various cancers. Pembrolizumab is a monoclonal antibody designed to bind to a receptor called PD-1, which is expressed by immune cells such as T cells.Natural killer cells were also found to be expressing PD-1 in the same way as T cells, and in particular, PD-1 was found to be higher in cancer patients than in healthy people.Therefore, combined therapy with the immune-check point such as pembrolizumab can be useful in elevating the anticancer activity of NK cells. In this clinical trial, the combination therapy of the SMT-NK and Pembrolizumab compared to Pembrolizumab monotherapy in advanced biliary tract cancer that is difficult to proceed with chemotherapy due to refractory to chemotherapy or side effects to chemotherapy. The purpose of this study is to provide a new therapeutic option as a second-line treatment by evaluating the antitumor activity and safety of combination therapy. |
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8. Study Design
Study Type | Interventional Study |
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Study Purpose | Treatment |
Phase | Phase2/Phase3 |
Intervention Model | Parallel |
Blinding/Masking | Open |
Allocation | RCT |
Intervention Type | Drug |
Intervention Description | -Experimental: Pembrolizumab + SMT-NK inj. Participants will be randomized to receive 200 mg pembrolizumab followed by 3*10^6cells/kg SMT-NK inj. -Placebo Controlled: Pembrolizumab Participants will be randomized to receive 200 mg pembrolizumab. |
Number of Arms | 2 |
Arm 1 |
Arm Label Experimental |
Target Number of Participant 64 |
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Arm Type Experimental |
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Arm Description SMT-NK inj. will be administered as an intravenous (IV) infusion on Day 1,Day 14 of each 21-day cycle. Pembrolizumab will be administered as an intravenous(IV) infusion every 3 weeks on Day 1 of each 21-day cycle. |
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Arm 2 |
Arm Label Controlled |
Target Number of Participant 64 |
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Arm Type Placebo comparator |
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Arm Description Pembrolizumab will be administered as an intravenous(IV) infusion every 3 weeks on Day 1 of each 21-day cycle. |
9. Subject Eligibility
Condition(s)/Problem(s) |
* (C00-D48)Neoplasms (C24.9)Malignant neoplasm of biliary tract, unspecified Advanced Biliary Tract Cancer |
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Rare Disease | Yes |
Inclusion Criteria |
Gender Both |
Age 19Year~80Year |
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Description 1. Patients who received a histopathological or cytologic diagnosis of nonresectable, advanced biliary tract carcinoma (intrahepatic or extrahepatic cholangiocarcinoma, gallbladder cancer) and patients with refractory disease after chemotherapy and/or patients who have difficulty with chemotherapy due to side effects of chemotherapy. 2. Patients who receives an explanation from the trial manager about the purpose, contents, and characteristics of the Investigational products for the clinical trial and is signed by the person, guardian or legal representative in the written informed consent. 3. 19 to 80 years old on day of signing informed consent. 4. Histopathological or cytologic diagnosis of advanced adenocarcinoma of the biliary tract and those with measurable lesions for RECIST evaluation • Tumor lesion: Must be accurately measured in at least one dimension (longest diameter in the plane of measurement is to be recorded) with a minimum size of 10mm by CT Scan • Malignant lymph nodes: To be considered pathologically enlarged and measurable, a lymph node must be ≥15mm in short axis when assessed by CT scan 5. Have a performance status of ≤2 on the ECOG Performance Scale. 6. Patients who survival period is expected to be at least 3 months. 7. Demonstrate laboratory test results the following conditions: • ANC (Absolute Neutrophil Count) ≥ 1,500/μL • Hemoglobin≥ 9 g/dL • Platelet> 80,000/μL • serum BUN & Creatinine ≤ 2.0 x upper limit of normal (ULN) • AST & ALT ≤ 5.0 x upper limit of normal (ULN) • Bilirubin ≤ 5mg/dL • Albumin ≥ 2.8g/dL • Prothrombin time (PT)% activity ≥ 70% 8. Patients or partners who has agreed to the appropriate use of contraceptives by two or more during the treatment period (including Survival follow-up period) (for men, those who have agreed not to provide sperm) 9. Patients who meet one or more of the following conditions: -Patients have at least 1% Combined Positive Score (*CPS) PD-L1 expression detected on the tumor, as determined by **immunohistochemistry performed by a central laboratory. • CPS = (number of PD-L1 positive tumor cells, lymphocytes,macrophage)/ (total number of viable tumor cells) X 100 • Immunohistochemistry: IHC 22C3 pharmDx test -Patients who have a positive MSI-H or dMMR test • MSI-high positive tumors analyzed by PCR • dMMR positive tumors analyzed by immunohistochemical staining • MSI-H was measured by PCR, and positive finding when two or more unstable markers were detected in PCR for 5 microsatellite markers, MSI- **dMMR is analyzed by immunohistochemical staining and positive when the discoveryof one or more genes in MLH1, MSH2, MSH6 and PMS2 staining is lost. |
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Exclusion Criteria |
1. Patients who have previous history • Immune deficiency or autoimmune disease that can be aggravated by immunotherapy (for example: Rheumatoid arthritis, systemic lupus erythematosus, vasculitis, multiple sclerosis, Crohn's disease, ulcerative colitis, adolescent-developed insulin-dependent diabetes mellitus). • Immune deficiency disease • Pneumonia, colitis, hepatitis, nephritis, endocrine diseases associated with immunodeficiency (hypophysis, thyroid dysfunction,Type 1 diabetes, etc.) • Obvious myocardial failure or uncontrolled arterial hypertension • Active central nervous system (CNS) metastases and/or carcinomatous meningitis. • Non-infectious pneumonia, interstitial lung disease • Human Immunodeficiency Virus (HIV) (HIV 1/2 antibodies). • Hepatitis B (defined as HBsAg reactive) or known active hepatitis C virus (defined as HCV ribonucleic acid (RNA) [qualitative] is detected) infection or active tuberculosis • Active infection (if systemic treatment is required) 2. Has a diagnosed and/or treated additional malignancy within 5 years prior to signing informed consent except for curatively treated basal cell carcinoma of the skin, squamous cell carcinoma of the skin 3. Has a previous history of anti-angiogenic agent treatment before signing informed consent 4. Has a known serious allergic history 5. Has a known serious mental illness 6. Identified the following in Screening: • CRP ≥10 mg/dl and albumin ≤3.0 g/dl are suspected of cancer cachexia • Patients who have symptomatic ascites that is not controlled by medical treatment 7. Has received chemotherapy not less than 4 weeks old before randomization 8. Has received a live vaccine within 4 weeks before randomization 9. Is currently participating in or has participated in another clinical study within 4 weeks before randomization or the adverse event due to investigational drug administered remain before randomization 10. Has previously administrated Pembrolizumab and another anti-PD-1/ PD-L1 agent 11. Has previously administrated immune-cell therapy (including natural killer cell etc.) 12. Female who are pregnant, breastfeeding or intending to become pregnant during the study period. 13. Has a history of any contraindication or has a severe hypersensitivity to any components of pembrolizumab 14. Has performed major surgery within 4 weeks prior to signing informed consent 15. Patients who are unsuitable to participate in clinical trials by investigator’s decision |
Healthy Volunteers | Yes |
10. Outcome Measure(s)
Type of Primary Outcome | Efficacy | |
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Primary Outcome(s) 1 | ||
Outcome | Progression Free Survival |
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Timepoint | Up to approximately 72 weeks from the date of first administration of clinical trial drugs |
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Secondary Outcome(s) 1 | ||
Outcome | Object Response rate |
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Timepoint | Up to approximately 72 weeks from the date of first administration of clinical trial drugs |
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Secondary Outcome(s) 2 | ||
Outcome | Time to Progression |
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Timepoint | Up to approximately 72 weeks from the date of first administration of clinical trial drugs |
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Secondary Outcome(s) 3 | ||
Outcome | Overall Survival |
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Timepoint | Up to approximately 120 weeks from the date of first administration of clinical trial drugs |
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Secondary Outcome(s) 4 | ||
Outcome | Duration of Response |
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Timepoint | Up to approximately 72 weeks from the date of first administration of clinical trial drugs |
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Secondary Outcome(s) 5 | ||
Outcome | Disease Control Rate |
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Timepoint | Up to approximately 72 weeks from the date of first administration of clinical trial drugs |
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Secondary Outcome(s) 6 | ||
Outcome | Best Overall Response |
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Timepoint | Up to approximately 72 weeks from the date of first administration of clinical trial drugs |
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Secondary Outcome(s) 7 | ||
Outcome | Time to Response |
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Timepoint | Up to approximately 72 weeks from the date of first administration of clinical trial drugs |
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Secondary Outcome(s) 8 | ||
Outcome | Quality of Life |
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Timepoint | Up to approximately 72 weeks from the date of first administration of clinical trial drugs |
11. Study Results and Publication
Result Registered | No |
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12. Sharing of Study Data(Deidentified Individual-Patient Data, IPD)
Sharing Statement | No |
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