BKM120 in Esophageal Squamous Cell Carcinoma After Failure of First Line Chemotherapy

Study Overview
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Brief Summary
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There is a need for more effective therapy for patients with esophageal squamous cell carcinoma who developed disease progression after first line therapy. Currently, there is no standard second-line therapy for this disease. BKM-120 is a pan-PI3K inhibitor currently tested in clinical trials. In a cellular model of oral-esophageal carcinogenesis, it has shown that EGFR overexpression activated PI3/AKT pathway. Therfore, there is interest to see the efficacy and safety of BKM120 in this setting.

Official Title
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A Phase II Study of BKM120; a Pan-PI3K Inhibitor in Patients With Esophageal Squamous Cell Carcinoma After Failure of First Line Chemotherapy

Conditions
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Esophageal Cancer

Intervention / Treatment
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* Drug: BKM120


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patient has provided a signed Informed Consent Form (ICF) obtained prior to any screening procedure. Age ≥ 18 years old Histologically confirmed diagnosis of esophageal squamous cell carcinoma and available archival tissue for evaluation of further studies. Metastatic or unresectable disease Received one prior chemotherapy or biological therapy regimen for unresectable or metastatic disease More than 30 days since prior chemotherapy, surgery, radiotherapy, or investigational agents Measurable disease in at least 1 diameter by CT scan or MRI as per RECIST 1.1 criteria No evidence of brain metastasis ECOG ≤ 2 Patient has adequate bone marrow and organ function Absolute Neutrophil Count (ANC) ≥ 1.5 x 109/L Platelets ≥ 100 x 109/L Hemoglobin ≥ 9.0 g/dL INR ≤ 2 Potassium, calcium, magnesium within normal limits for the institution Serum Creatinine ≤ 1.5 x ULN or Creatinine clearance > 60 mL AST and ALT not more than 2.5 times ULN (not more than 5.0 times ULN if there is liver metastasis) Serum bilirubin within normal range (or ≤ 1.5 x ULN if liver metastases are present; or total bilirubin ≤ 3.0 x ULN with direct bilirubin within normal range in patients with well documented Gilbert Syndrome) Fasting serum glucose < 1.5 times ULN Exclusion Criteria: Patient has received previous treatment with PI3K inhibitors Patient has symptomatic CNS metastases Patients with controlled and asymptomatic CNS metastases may participate in this trial. As such, the patient must have completed any prior treatment for CNS metastases > 28 days (including radiotherapy and/or surgery) prior to enrollment in this study and should not be receiving chronic corticosteroid therapy for the CNS metastases. Patient has a concurrent malignancy or has a malignancy within 5 years of study enrollment, (with the exception of nonmelanoma skin cancer or cervical carcinoma in situ. Patient has any of the following mood disorders as judged by the Investigator or a Psychiatrist, or meets the cut-off score of ≥ 10 in the PHQ-9 or a cut-off of ≥ 15 in the GAD-7 mood scale, respectively, or selects a positive response of '1, 2, or 3' to question number 9 regarding potential for suicidal thoughts ideation in the PHQ-9 (independent of the total score of the PHQ-9) Medically documented history of or active major depressive episode, bipolar disorder (I or II), obsessive-compulsive disorder, schizophrenia, a history of suicidal attempt or ideation, or homicidal ideation (immediate risk of doing harm to others) ≥ CTCAE grade 3 anxiety Patient is concurrently using other approved or investigational antineoplastic agent Patient has had major surgery within 28 days prior to starting study drug or has not recovered from major side effects of the surgery Patient has poorly controlled diabetes mellitus(HbA1c > 8 %) Patient has active cardiac disease including any of the following: LVEF < 50% QTc > 480 msec on screening ECG (using the QTcF formula) Angina pectoris that requires the use of anti-anginal medication Ventricular arrhythmias except for benign premature ventricular contractions Supraventricular and nodal arrythmias requiring a pacemaker or not controlled with medication Conduction abnormality requiring a pacemaker Valvular disease with documented compromise in cardiac function Symptomatic pericarditis Patient has a history of cardiac dysfunction including any of the following; Myocardial infarction within the last 6 months, documented by persistent elevated cardiac enzymes or persistent regional wall abnormalities on assessment of LVEF function History of documented congestive heart failure (New York Heart Association functional classification III-IV) Documented cardiomyopathy Patient is currently receiving treatment with QT prolonging medication known to have a risk to induce Torsades de Pointes, and the treatment cannot be discontinued or switched to a different medication prior to starting study drug Inability to swallow, impaired gastrointestinal (GI) function, or GI disease that would significantly alter the absorption of study drugs or preclude the use of oral medications Patient has other concurrent severe and/or uncontrolled medical condition that would, in the investigator's judgment contraindicate her participation in the clinical study (e.g.,chronic pancreatitis, active chronic hepatitis etc.) Patient is currently being treated with drugs known to be moderate and strong inhibitors or inducers of isoenzyme CYP3A, and the treatment cannot be discontinued or switched to a different medication prior to starting study drug.
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: BKM120<br>BKM120, starting at 100 mg oral once daily | Drug: BKM120<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| disease control rate | 16-week disease control rate using RECIST 1.1 criteria | 16 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| safety | Safety data will be assessed at each study visit using CTCAE version 4.0 | each follow up visit, assessed up to 12 months | 
| progression-free survival |  | Time from day 1 to date of documented disease progression or death, assessed up to 12 months | 
| overall survival |  | Time from day 1 to date of death, assessed up to 18 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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esophageal cancer, second line therapy, BKM120