E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Non-operable biliary tract cancer (BTC) and non-operable esophagogastric cancer (EGC) adenocarcinoma. |
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E.1.1.1 | Medical condition in easily understood language |
Biliary Tract Cancer
Esophagogastric Cancer
|
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E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10061203 |
E.1.2 | Term | Hepatobiliary neoplasm |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | HLT |
E.1.2 | Classification code | 10019817 |
E.1.2 | Term | Hepatobiliary neoplasms NEC |
E.1.2 | System Organ Class | 10019805 - Hepatobiliary disorders |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | HLGT |
E.1.2 | Classification code | 10019811 |
E.1.2 | Term | Hepatobiliary neoplasms |
E.1.2 | System Organ Class | 10019805 - Hepatobiliary disorders |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | SOC |
E.1.2 | Classification code | 10019805 |
E.1.2 | Term | Hepatobiliary disorders |
E.1.2 | System Organ Class | 10019805 - Hepatobiliary disorders |
|
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | HLT |
E.1.2 | Classification code | 10019814 |
E.1.2 | Term | Hepatobiliary neoplasms malignancy unspecified |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
|
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | HLGT |
E.1.2 | Classification code | 10019815 |
E.1.2 | Term | Hepatobiliary neoplasms malignant and unspecified |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | SOC |
E.1.2 | Classification code | 10029104 |
E.1.2 | Term | Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10056267 |
E.1.2 | Term | Gastroesophageal cancer |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10062878 |
E.1.2 | Term | Gastrooesophageal cancer |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | HLT |
E.1.2 | Classification code | 10017812 |
E.1.2 | Term | Gastric neoplasms malignant |
E.1.2 | System Organ Class | 10017947 - Gastrointestinal disorders |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | HLGT |
E.1.2 | Classification code | 10017991 |
E.1.2 | Term | Gastrointestinal neoplasms malignant and unspecified |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | HLGT |
E.1.2 | Classification code | 10017990 |
E.1.2 | Term | Malignant and unspecified neoplasms gastrointestinal NEC |
E.1.2 | System Organ Class | 10017947 - Gastrointestinal disorders |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | SOC |
E.1.2 | Classification code | 10017947 |
E.1.2 | Term | Gastrointestinal disorders |
E.1.2 | System Organ Class | 10017947 - Gastrointestinal disorders |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The primary objectives of this study are to investigate:
•whether the combination of atezolizumab and DKN-01 can demonstrate sufficient antitumor activity to justify further investigation as second line treatment in patients with non-operable BTC.
•whether the combination of atezolizumab, DKN-01 and paclitaxel can improve efficacy compared to historical controls treated with standard of care as second line treatment in patients with non-operable esophagogastric cancer (EGC) adenocarcinoma.
•whether a combination regimen atezolizumab + DKN-01 without chemotherapy can demonstrate sufficient antitumor activity to justify further investigation as second line treatment in patients with non-operable EGC adenocarcinoma.
Each primary objective in this study will be evaluated independently. The formal comparison of atezolizumab + DKN-01 with or without chemotherapy in patients with esophagogastric adenocarcinoma is beyond the scope of this phase II trial with limited sample size.
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E.2.2 | Secondary objectives of the trial |
Secondary objectives are:
•to assess the tolerability and safety profile of DKN-01/atezolizumab ± paclitaxel in EGC and of DKN-01/atezolizumab in BTC.
•to document the long-term outcome of patients with EGC treated with DKN-01/atezolizumab ± paclitaxel and of patients with BTC treated with DKN-01/atezolizumab in terms of Progression free survival (PFS) and Overall survival (OS). |
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E.2.3 | Trial contains a sub-study | Yes |
E.2.3.1 | Full title, date and version of each sub-study and their related objectives |
Analysis of changes in immune cells, cytokines, and potential circulating biomarkers during the course of the treatment. Molecular characterization of the tumor and link with response to DKN-01+atezolizumab +/- paclitaxel. |
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E.3 | Principal inclusion criteria |
• Histologically proven diagnosis of metastatic or unresectable intra or extrahepatic cholangiocarcinoma or esophagogastric adenocarcinoma.
• Measurable disease by CT/MRI (RECIST 1.1) within 28 days of enrollment (BTC)/randomization (EGC)
• Male and female subjects of age ≥18 years
• Performance status ECOG 0-1
• Life expectancy ≥ 4 months in the opinion of the investigator
• Normal 12-lead ECG (patients with abnormal ECG will be eligible if changes are not considered clinically significant by the local investigator)
• Adequate hematological function:
o Hemoglobin ≥ 9 g/dl (prior transfusions are allowed if they have been done ≥ 7 days before testing the Hb)
o White blood cell (WBC) ≥ 3.0 x 109/L
o Absolute neutrophil count (ANC) ≥ 1.5 x 109/L
o Platelet count ≥ 75 x 109/L
• Adequate liver function:
o Total bilirubin ≤ 1.5 x upper limit of normal (ULN), except subjects with Gilbert Syndrome who must have a total bilirubin level of < 3.0 x ULN.
o ALT, AST & alkaline phosphatase ≤ 3 x ULN; ≤ 5 x ULN in case of liver/bone metastases
o Serum albumin ≥ 2.5 g/dL
• Adequate renal function:
o Estimated glomerular filtration rate (eGFR) according to MDRD (see Appendix G) should be > 50 ml/min
• Adequate coagulation:
o International Normalized Ratio (INR) or Prothrombin Time (PT): ≤ 1.5 x ULN unless patient is receiving anticoagulant therapy as long as PT or Partial Thromboplastin Time (PTT) is within therapeutic range of intended use of anticoagulants
• The following local treatment modalities are allowed prior to enrollment/randomization within the rules described (provided there has been a full recovery):
o Surgery: patients may have undergone a non-curative operation (i.e., R2 resection [with macroscopic residual disease] or palliative bypass surgery only), performed at least 28 days before enrollment/randomization. Patients who have previously undergone curative surgery, must have evidence of non-resectable and measurable disease relapse requiring systemic chemotherapy prior to study entry.
o Radiotherapy: patients may have received prior radiotherapy (with or without radiosensitising low-dose chemotherapy) for localised disease. However, there must be clear evidence of disease progression post-treatment prior to inclusion in this study. The radiotherapy should have been finished at least 15 days prior to enrollment/randomization.
o Photodynamic therapy (PDT) for localized disease only with no evidence of metastatic disease - patients may have received prior PDT, provided the patient has fully recovered and at least 28 days have elapsed since the PDT and there is clear evidence of disease progression at the local site or disease or at a new metastatic site.
o Other previous localised treatments targeting intrahepatic lesions such as selective internal radiation therapy (SIRT) , transarterial chemoembolisation (TACE) and radiofrequency ablation (RFA) are allowed, provided the patient has finished it at least 15 days prior to enrollment/randomization, with full recovery.
• Asymptomatic subjects with known Central Nervous system (CNS) metastases are eligible, provided that all of the following criteria are met:
o Measurable disease, per RECIST v1.1, must be present outside the CNS.
o The patient has no history of intracranial hemorrhage or spinal cord hemorrhage.
o The patient has not undergone stereotactic radiotherapy within 7 days prior to initiation of study treatment, whole-brain radiotherapy within 14 days prior to initiation of study treatment, or neurosurgical resection within 28 days prior to initiation of study treatment.
oIn addition, subjects must be either off corticosteroids, or on a stable or decreasing dose of ≤ 10 mg daily prednisone (or equivalent) for at least 2 weeks prior to enrollment /randomization.
oAny brain metastases must be stable for at least 6 months.
• Patients with eczema, psoriasis, lichen simplex chronicus, or vitiligo with dermatologic manifestations only (e.g., patients with psoriatic arthritis are excluded) are eligible for the study provided all of following conditions are met:
• Rash must cover < 10% of body surface area
• Disease is well controlled at baseline and requires only low-potency
topical corticosteroids
Note: see exclusion criteria for acute exacerbations
•Availability of 1 FFPE block (preferred), or if not available, minimum 15-20 freshly cut (≤ 7 days) unstained slides of tumor tissue (either from current or previous resection/biopsy) for biobanking/translational research. If less tumor tissue available please contact the HQ study team.
• Women of child bearing potential (WOCBP) must have a negative serum (or urine) pregnancy test within 72 hours prior to the first dose of study treatment.
PLEASE REFER TO THE PROTOCOL FOR THE COMPLETE LIST OF INCLUSION CRITERIA |
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E.4 | Principal exclusion criteria |
• Subjects with pleural effusion, pericardial effusion, or ascites with symptoms uncontrolled by medication or who require recurrent drainage procedures (once monthly or more frequently).
• Leptomeningeal spread of disease.
• Patient is currently participating and receiving study therapy or has participated in a study of an investigational agent and received study therapy or used an investigation device within 4 weeks prior to enrollment/randomization.
• Other concomitant or prior malignancy within the last 5 years with the exception of currently treated basal cell, squamous cell carcinoma of the skin, or in-situ carcinoma of the cervix.
• History of inflammatory bowel disease or any autoimmune disease, including but not limited to myasthenia gravis, myositis, autoimmune hepatitis, systemic lupus erythematosus, rheumatoid arthritis, vascular thrombosis associated with antiphospholipid syndrome, Wegener’s granulomatosis, Sjögren’s syndrome, Guillain-Barré syndrome, multiple sclerosis, type I diabetes mellitus, vasculitis, or glomerulonephritis.
• Patients with a history of autoimmune-related hypothyroidism on a stable dose of thyroid replacement hormone are eligible for this study.
• Patients with controlled Type I diabetes mellitus on a stable insulin regimen are eligible.
• Patients with eczema, psoriasis, lichen simplex chronicus, or vitiligo with dermatologic manifestations only (e.g., patients with psoriatic arthritis are excluded) are not eligible in case of occurrence of acute exacerbations of the underlying condition requiring psoralen plus ultraviolet A radiation, methotrexate, retinoids, biologic agents, oral calcineurin inhibitors or high-potency or oral corticosteroids within the previous 12months.
• History of idiopathic pulmonary fibrosis, organizing pneumonia (e.g., bronchiolitis obliterans), drug-induced pneumonitis, idiopathic pneumonitis, or evidence of active pneumonitis on screening chest Computerized tomography (CT) scan
o History of radiation pneumonitis/fibrosis in the radiation field is permitted.
• Infections:
o Signs or symptoms of infection or therapeutic use of antibiotics (except prophylactic antibiotics) within 2 weeks prior to enrollment/randomization and severe infections within 4 weeks prior to enrollment/randomization, including but not limited to hospitalization for complications of infection, bacteremia, or severe pneumonia.
o Known or current evidence of Human Immunodeficiency Virus (HIV) (test to be performed within 14 days of enrollment/randomization)
o Active or chronic hepatitis B or hepatitis C
Patients with past/resolved hepatitis B virus (HBV) infection (defined as having a negative HBsAg test and a positive antibody to hepatitis B core antigen [anti-HBc] antibody test) are eligible. HBV Deoxyribonucleic acid (DNA) must be obtained in patients with positive hepatitis B core antibody prior to enrollment/randomization.
Patients positive for hepatitis C virus (HCV) antibody are eligible only if polymerase chain reaction (PCR) is negative for HCV ribonucleic acid (RNA).
o Active tuberculosis
• Conditions leading to immune suppression or stimulation of the immune system, such as:
o Prior treatment with checkpoint inhibitors
o Patients who have received prior treatment with anti-CTLA-4 may be enrolled, provided at least 5 half-lives (approximately 75 days) have elapsed since the last dose of anti-CTLA-4 and there was no history of severe immune-mediated adverse effects from anti-CTLA-4 (NCI CTCAE 5 Grade 3 or 4)
o Treatment with systemic immunostimulatory agents (including but not limited to IFN , IL-2) for any reason within 6 weeks or five half-lives of the drug, whichever is shorter, prior to enrollment/randomization.
o Prior allogeneic stem cell or solid organ transplant.
• Subjects with a condition requiring systemic treatment with either corticosteroids (≥ 10 mg daily prednisone or equivalent) or other immunosuppressive medications within 14 days of randomization/enrollment
• Prior treatment with an anti-DKK1 therapy
• Administration of a live, attenuated vaccine within 30 days prior to the first dose of study medication or anticipation that such a live attenuated vaccine will be required during the study. Any live, attenuated vaccine (e.g. FluMist®) is prohibited while the patient is receiving atezolizumab and for a period of 5 months after discontinuation of atezolizumab. Inactivated influenza vaccines are allowed only during flu season.
PLEASE REFER TO THE PROTOCOL FOR THE COMPLETE LIST OF EXCLUSION CRITERIA |
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E.5 End points |
E.5.1 | Primary end point(s) |
Primary endpoint is Objective response rate (ORR) (including complete and partial response) according to RECIST 1.1. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Until 2 years after start of study treatment. |
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E.5.2 | Secondary end point(s) |
Secondary endpoints are:
-Best overall response distribution according to RECIST1.1 and iRECIST
-Immune objective response rate (iCR+iPR) according to iRECIST
-Duration of response and stable disease using RECIST 1.1 and iRECIST
-PFS according to RECIST 1.1 and iRECIST
-Overall survival (OS)
-Safety (worst laboratory and clinical AE's grades) per CTCAE 5.0 |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Until 2 years after start of study treatment |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | Yes |
E.6.11 | Pharmacogenomic | Yes |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | Yes |
E.8.1.7.1 | Other trial design description |
BTC cohort: single arm; EGC cohort: randomized open |
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E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 3 |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 16 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
|
End of study occurs when all of the following criteria have been satisfied:
1. Ninety (90) days after all patients have stopped protocol treatment
2. The trial is mature for the analysis of the primary endpoint in all 3 arms as defined in the protocol
3. The database has been fully cleaned and frozen for this analysis. |
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 3 |
E.8.9.1 | In the Member State concerned months | 3 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 3 |
E.8.9.2 | In all countries concerned by the trial months | 3 |
E.8.9.2 | In all countries concerned by the trial days | 0 |