Varlitinib in Combination With Capecitabine for Advanced or Metastatic Biliary Tract Cancer (TreeTopp)

• ClinicalTrials.gov Identifier: NCT03093870
• Recruitment Status: Completed
• First Posted: March 28, 2017
• Results First Posted: August 3, 2021
• Last Update Posted: August 3, 2021
• Sponsor: ASLAN Pharmaceuticals
• Collaborators: bioRASI, LLC; CMIC Co, Ltd. Japan; Syneos Health
• Information provided by (Responsible Party): ASLAN Pharmaceuticals

Tracking Information

• First Submitted Date: March 16, 2017
• First Posted Date: March 28, 2017
• Results First Submitted Date: May 17, 2021
• Results First Posted Date: August 3, 2021
• Last Update Posted Date: August 3, 2021
• Actual Study Start Date: July 4, 2017
• Actual Primary Completion Date: November 12, 2019 (Final data collection date for primary outcome measure)

Current Primary Outcome Measures (submitted: July 12, 2021)

• Objective Response Rate (ORR) - Part 1 [ Time Frame: Data obtained up until progression, or until last evaluable assessment in the absence of progression, regardless of whether subjects discontinued treatment or received a subsequent therapy prior to progression, up to 2 years. ]
  Part 1: The ORR was defined as the number (%) of subjects with ≥ 1 visit response of complete response (CR) or partial response (PR). Data obtained up until progression, or until last evaluable assessment in the absence of progression, was included in the assessment of ORR, regardless of whether subjects discontinued treatment or received a subsequent therapy prior to progression. Best overall RECIST Response (BOR) was calculated based on the overall visit responses from each RECIST assessment, i.e. the best response a subject had following randomization and prior to RECIST progression or the last evaluable assessment in the absence of RECIST progression. Categorization of BOR was based on the RECIST criteria using the following response categories: CR, PR, stable disease (SD), progressive disease (PD) and not evaluable (NE).
• Progression-free Survival (PFS) - Part 1 [ Time Frame: Time from randomization until date of objective disease progression or death (by any cause in absence of disease progression) regardless of whether subject withdrew from randomized therapy or received another antitumor therapy prior to PD, up to 2 years. ]
  Part 1: Progression-free survival (PFS) was defined as the time from randomization (or starting treatment for the Safety Lead-in) until the date of objective disease progression or death (by any cause in the absence of disease progression) regardless of whether the subject withdrew from randomized therapy or received another antitumor therapy prior to disease progression. Subjects who did not experience disease progression or died at the time of analysis were censored at the time of the latest date of assessment from their last evaluable RECIST assessment. However, if the patient progressed or died after ≥ 2 missed visits (12 weeks ± 5 days maximum), the subject was censored at the time of the latest evaluable RECIST assessment. The PFS time was based on the scan/assessment dates rather than visit dates.

Original Primary Outcome Measures (submitted: March 27, 2017)

• Incidence of Adverse events (AE) - safety lead-in [ Time Frame: Through 28-days post last study medication administration ]
  Safety-lead-in: Incidence of AEs, categorized in accordance to CTCAE 4.03 and changes from baseline in safety parameters (including vital signs, ECG parameters, clinical laboratory tests)
• Objective response rate (ORR) - part 1 [ Time Frame: 3 months after last subject in or when 70% of the subjects (84 subjects) have experienced a PFS event in Part 1 ]
  Part 1: ORR defined as the proportion of subjects with a best objective response (BOR) of complete response (CR) or partial response (PR), as assessed by an Independent Central Review defined by the RECIST v1.1 criteria
• Progression-free survival (PFS) - part 1 [ Time Frame: 3 months after last subject in or when 70% of the subjects (84 subjects) have experienced a PFS event in Part 1 ]
  Part 1: Progression-free survival (PFS), defined as the time from randomization until the date of objective disease progression or death (by any cause in the absence of progression). Progression is defined in accordance with the RECIST v1.1 criteria and will be derived programmatically based on data from the ICR of radiological data.
• Overall survival (OS) - part 2 [ Time Frame: When 247 OS events have occurred. With median OS times of 8.6 months and 6 months for respective arms, 247 OS is estimated to occur after approximately 31 months. ]
  Part 2; Overall survival (OS) Defined as the time from randomization until death by any cause

Current Secondary Outcome Measures (submitted: July 12, 2021)

• Object Response Rates (ORR) - Safety Lead-In [ Time Frame: Data obtained up until progression, or until last evaluable assessment in absence of progression, regardless of whether subjects discontinued treatment or received a subsequent therapy prior to progression, up to 2 years. ]
  The ORR rate was defined as the number (%) of subjects with ≥ 1 visit response of complete response (CR) or partial response (PR). Data obtained up until progression, or until last evaluable assessment in the absence of progression, was included in the assessment of ORR, regardless of whether subjects discontinued treatment or received a subsequent therapy prior to progression. In all study parts, the primary assessment of ORR was based on the Full Analysis Set (FAS).
• Overall Survival (OS) - Part 1 [ Time Frame: Time from the date of randomization until death due to any cause, up to 2 years ]
  Part 1: Overall survival (OS) was defined as the time from the date of randomization until death due to any cause. Any subject not known to have died at the time of the data cut-off was censored based on the last recorded date on which the subject was known to be alive.
• Overall Survival (OS) - Safety Lead-In [ Time Frame: Time from the date of randomization until death due to any cause, up to 2 years ]
  Part 1: Overall survival (OS) was defined as the time from the date of randomization until death due to any cause. Any subject not known to have died at the time of the data cut-off was censored based on the last recorded date on which the subject was known to be alive.
• Duration of Response (DoR) - Part 1 [ Time Frame: Time from the date of first documented response until the date of documented PD or death in the absence of disease progression, up to 2 years ]
  Part 1: Duration of response (DoR) was defined as the time from the date of first documented response until the date of documented PD or death in the absence of disease progression. The end of the response should have coincided with the date of disease progression or death from any cause used for the PFS endpoint. For Part 1, DoR was calculated based on data from the ICR of radiological data.
• Disease Control Rate DCR - Part 1 [ Time Frame: Number (%) of subjects with ≥ 1 visit response of CR or PR, or with SD for a minimum of 12 weeks (± 5 days) from randomization. ]
  Part 1: DCR rate was defined as the number (%) of subjects with ≥ 1 visit response of CR or PR, or with SD for a minimum of 12 weeks (± 5 days) from randomization. Data obtained up until progression, or until last evaluable assessment in the absence of progression, were included in the assessment of DCR, regardless of whether subjects discontinued treatment or received a subsequent therapy prior to progression. For all study parts, the primary assessment of DCR was based on the FAS. For Part 1, DCR was calculated based on data from the ICR
• Tumor Size - Part 1 [ Time Frame: Week 12 ]
  Part 1: The percentage change from baseline in tumor size at Week 12 (%ΔTSWk12) was a secondary endpoint for Part 1 and was used to present waterfall plots of the target lesion data in the Evaluable for Response (EFR) Population
• Number of Participants With Clinically Significant Laboratory Tests- Safety Lead-in [ Time Frame: Subject screening visit to 28 days post last study drug administration ]
  Clinical laboratory tests (hematology, clinical chemistry, urinalysis) - Number of Participants with Clinically Significant Laboratory Tests.
• Number of Participants With Clinically Significant Laboratory Tests - Part 1 [ Time Frame: Subject screening visit to 28 days post last study drug administration ]
  Clinical laboratory tests (hematology, clinical chemistry, urinalysis) - Number of Participants with Clinically Significant Laboratory Tests.
• Number of Participants With Clinically Significant Change in Vital Signs and Physical Examinations - Safety Lead-In [ Time Frame: Subject screening visit to 28 days post last study drug administration ]
  Number of participants with clinically significant change in vital signs (blood pressure [diastolic and systolic], heart rate, respiratory rate, body temperature) and physical examination.
• Number of Participants With Clinically Significant Change in Vital Signs and Physical Examinations - Part 1 [ Time Frame: Subject screening visit to 28 days post last study drug administration ]
  Number of participants with clinically significant change in vital signs (blood pressure [diastolic and systolic], heart rate, respiratory rate, body temperature) and physical examination.
• Number of Participants With ECG Parameters of Interest - Safety Lead-In [ Time Frame: Subject screening visit to 28 days post last study drug administration ]
  Number of participants with ECG parameters of interest: Max. on-treatment QTcF Value: >450 to 480 msec, max. on-treatment QTcF Value: >480 to 500 msec, max. on-treatment QTcF Value: >500 msec, max. on-treatment QTcB Value: >450 to 480 msec, max. on-treatment QTcB Value: >480 to 500 msec, max. on-treatment QTcB Value: >500 msec, max. QTcF CFB Value: >30 to 60 msec, max. QTcF CFB Value: >60 msec, max. QTcB CFB Value: >30 to 60 msec, max. QTcB CFB Value: >60 msec.
• Number of Participants With ECG Parameters of Interest - Part 1 [ Time Frame: Subject screening visit to 28 days post last study drug administration ]
  Number of participants with ECG parameters of interest: Max. on-treatment QTcF Value: <=450 msec, max. on-treatment QTcF Value: >450 to 480 msec, max. on-treatment QTcF Value: >480 to 500 msec, max. on-treatment QTcF Value: >500 msec, max. on-treatment QTcB Value: <=450 msec, max. on-treatment QTcB Value: >450 to 480 msec, max. on-treatment QTcB Value: >480 to 500 msec, max. on-treatment QTcB Value: >500 msec, max. QTcF CFB Value: <=30 msec, max. QTcF CFB Value: >30 to 60 msec, max. QTcF CFB Value: >60 msec, max. QTcB CFB Value: <=30 msec, max. QTcB CFB Value: >30 to 60 msec, max. QTcB CFB Value: >60 msec.
• ECOG Performance Status - Part 1 [ Time Frame: Subject screening visit to 28 days post last study drug administration ]
  Eastern Cooperative Oncology Group (ECOG) Performance was clinically graded based on the following: Grade 0 = Normal activity. Fully active, able to carry on all pre-disease performance without restriction. Grade 1 = Symptoms, but ambulatory. Restricted in physically strenuous activity, but ambulatory and able to carry out work of a light or sedentary nature (e.g., light housework, office work). Grade 2 = In bed < 50% of the time. Ambulatory and capable of all self-care, but unable to carry out any work activities. Up and about more than 50% of waking hours. Grade 3 = In bed > 50% of the time. Capable of only limited self-care, confined to bed or chair more than 50% of waking hours. Grade 4 = 100% bedridden. Completely disabled. Cannot carry on any self- care. Totally confined to bed or chair. Grade 5 = Death

Original Secondary Outcome Measures (submitted: March 27, 2017)

• Pharmacokinetics: Maximum plasma concentration (Cmax) - safety lead in [ Time Frame: Pharmacokinetic measurements will be taken on Day 1, Day 8, and Day 14 ]
  Safety lead in: Pharmacokinetics of varlitinib, capecitabine, and 5-FU (active metabolite of capecitabine)
• Pharmacokinetics: time to Cmax(tmax) - safety lead in [ Time Frame: Pharmacokinetic measurements will be taken on Day 1, Day 8, and Day 14 ]
  Safety lead in: Pharmacokinetics of varlitinib, capecitabine, and 5-FU (active metabolite of capecitabine)
• Pharmacokinetics: plasma concentration before next dose (Ctrough) - safety lead in [ Time Frame: Pharmacokinetic measurements will be taken on Day 1, Day 8, and Day 14 ]
  Safety lead in: Pharmacokinetics of varlitinib, capecitabine, and 5-FU (active metabolite of capecitabine)
• Pharmacokinetics: area under the plasma concentration-time curve from 0 to 12 hours (AUC0- τ) - safety lead-in [ Time Frame: Pharmacokinetic measurements will be taken on Day 1, Day 8, and Day 14 ]
  Safety lead in: Pharmacokinetics of varlitinib, capecitabine, and 5-FU (active metabolite of capecitabine)
• Pharmacokinetics: half-life (t1/2) - safety lead-in [ Time Frame: Pharmacokinetic measurements will be taken on Day 1, Day 8, and Day 14 ]
  Safety lead in: Pharmacokinetics of varlitinib, capecitabine, and 5-FU (active metabolite of capecitabine)
• Pharmacokinetics: apparent clearance (Cl/F) - safety lead-in [ Time Frame: Pharmacokinetic measurements will be taken on Day 1, Day 8, and Day 14 ]
  Safety lead in: Pharmacokinetics of varlitinib, capecitabine, and 5-FU (active metabolite of capecitabine)
• Pharmacokinetics: apparent volume of distribution (Vz/F) - safety lead-in [ Time Frame: Pharmacokinetic measurements will be taken on Day 1, Day 8, and Day 14 ]
  Safety lead in: Pharmacokinetics of varlitinib, capecitabine, and 5-FU (active metabolite of capecitabine)
• Pharmacokinetics: apparent volume of distribution at the steady state (Vss/F) - safety lead-in [ Time Frame: Pharmacokinetic measurements will be taken on Day 1, Day 8, and Day 14 ]
  Safety lead in: Pharmacokinetics of varlitinib, capecitabine, and 5-FU (active metabolite of capecitabine)
• Pharmacokinetics: accumulation ratio of AUC0- τ (RacAUC0- τ) (Day 8/Day 1) - safety lead-in [ Time Frame: Pharmacokinetic measurements will be taken on Day 8 ]
  Safety lead in: Pharmacokinetics of varlitinib, capecitabine, and 5-FU (active metabolite of capecitabine)
• Pharmacokinetics: accumulation ratio of Cmax RacCmax (Day 8/Day 1) - safety lead-in [ Time Frame: Pharmacokinetic measurements will be taken on Day 8 ]
  Safety lead in: Pharmacokinetics of varlitinib, capecitabine, and 5-FU (active metabolite of capecitabine)
• Pharmacokinetics: accumulation ratio of Cmax RacCmax (Day 14/Day 1) - safety lead-in [ Time Frame: Pharmacokinetic measurements will be taken on Day 14 ]
  Safety lead in: Pharmacokinetics of varlitinib, capecitabine, and 5-FU (active metabolite of capecitabine)
• Pharmacokinetics: accumulation ratio of Cmax RacCmax (Day 8/Day 1) - safety lead-in [ Time Frame: Pharmacokinetic measurements will be taken on Day 14 ]
  Safety lead in: Pharmacokinetics of varlitinib, capecitabine, and 5-FU (active metabolite of capecitabine)
• Electrocardiogram - safety lead-in [ Time Frame: pre-dose, 2 hours, 3 hours, 4 hours and 12 hours post dose on Day 1 and Day 8 ]
  Safety lead in: Electrocardiogram measurements
• Objective response rate (ORR) - safety lead-in [ Time Frame: 3 months after last subject in or when 70% of the subjects (84 subjects) have experienced a PFS event in Part 1 ]
  Safety lead in: ORR defined as the proportion of subjects with a best objective response (BOR) of complete response (CR) or partial response (PR), as defined by the RECIST v1.1 criteria
• Duration of response (DoR) - safety lead-in [ Time Frame: 3 months after last subject in or when 70% of the subjects (84 subjects) have experienced a PFS event in Part 1 ]
  Safety lead in: DoR is defined as the time from the date of first documented response until the date of documented disease progression or death in the absence of disease progression, as defined by RECIST v1.1 criteria. The time of the initial response will be defined as the latest of the dates contributing towards the first visit response of PR or CR. For example, if the subject was first noted to have a PR at week 6, and the target and non-target lesions were assessed on different dates at this visit, then the later of the two assessment dates would be used as the start date of the response.
• Disease control rate (DCR) - safety lead-in [ Time Frame: 3 months after last subject in or when 70% of the subjects (84 subjects) have experienced a PFS event in Part 1 ]
  Safety lead in: DCR is defined as stable disease for a minimum of twelve weeks (± 5 days) from starting treatment, as defined by RECIST v1.1 criteria. Data obtained up until progression, or last evaluable assessment in the absence of progression, will be included in the assessment of DCR. This will be irrespective of whether or not subjects discontinued treatment or received a subsequent therapy prior to progression.
• Overall Survival OS - Part 1 [ Time Frame: 3 months after last subject in or when 70% of the subjects (84 subjects) have experienced a PFS event in Part 1 ]
  Part 1; OS defined as the time from randomization until death by any cause
• Duration of response (DoR) - Part 1 [ Time Frame: 3 months after last subject in or when 70% of the subjects (84 subjects) have experienced a PFS event in Part 1 ]
  Part 1: DoR, the time of the initial response will be defined as the latest of the dates contributing towards the first visit response of PR or CR. For example, if the subject was first noted to have a PR at week 6, and the target and non-target lesions were assessed on different dates at this visit, then the later of the two assessment dates would be used as the start date of the response
• Disease control rate (DCR) - Part 1 [ Time Frame: 3 months after last subject in or when 70% of the subjects (84 subjects) have experienced a PFS event in Part 1 ]
  Part 1: DCR, data obtained up until progression, or last evaluable assessment in the absence of progression, will be included in the assessment of DCR. This will be irrespective of whether or not subjects discontinued treatment or received a subsequent therapy prior to progression. DCR will be evaluated for the subset of the FAS with measurable disease at baseline (the EFR set).
• Objective response rate ORR - Part 1 [ Time Frame: 3 months after last subject in or when 70% of the subjects (84 subjects) have experienced a PFS event in Part 1 ]
  Part 1: ORR Defined as the proportion of subjects with a best objective response (BOR) of complete response (CR) or partial response (PR), as assessed by an Independent Central Review defined by the RECIST v1.1 criteria
• Tumor size - Part 1 [ Time Frame: Week 12 Tumor Size: defined as the sum of longest diameters of target lesions at week 12. Data Cut off at 3 months after last subject in or when 70% of the subjects (84 subjects) have experienced a PFS event in Part 1 ]
  Part 1: Tumor size
• Incidence of Adverse Events (AEs) - Part 1 [ Time Frame: Through 28-days post last study medication administration ]
  Part 1: Incidence of AEs, categorized in accordance to CTCAE 4.03 and changes from baseline in safety parameters (including vital signs, ECG parameters, clinical laboratory tests)
• Population Pharmacokinetics evaluation using Nonlinear Mixed Effect Model (NLME) - Part 1 [ Time Frame: Cycle 1 Day 1 and Cycle 2 Day 1: pre-dose, 1-3 hours post dose, 3-5 hours post dose, and 5-8 hours post dose. Data Cut-off at 3 months after last subject in or when 70% of the subjects (84 subjects) have experienced a PFS event in Part 1 ]
  Part 1: Sparse Pharmacokinetics sampling of varlitinib
• Objective response rate (ORR) - Part 2 [ Time Frame: When 247 OS events have occurred. With median OS times of 8.6 months and 6 months for respective arms, 247 OS is estimated to occur after approximately 31 months. ]
  Part 2: ORR defined as the proportion of subjects with a best objective response (BOR) of complete response (CR) or partial response (PR), as assessed by an Independent Central Review defined by the RECIST v1.1 criteria
• Duration of response (DoR) - Part 2 [ Time Frame: When 247 OS events have occurred. With median OS times of 8.6 months and 6 months for respective arms, 247 OS is estimated to occur after approximately 31 months. ]
  Part 2: The time of the initial response will be defined as the latest of the dates contributing towards the first visit response of PR or CR. For example, if the subject was first noted to have a PR at week 6, and the target and non-target lesions were assessed on different dates at this visit, then the later of the two assessment dates would be used as the start date of the response
• Disease control rate (DCR) - Part 2 [ Time Frame: When 247 OS events have occurred. With median OS times of 8.6 months and 6 months for respective arms, 247 OS is estimated to occur after approximately 31 months. ]
  Part 2: DCR Data obtained up until progression, or last evaluable assessment in the absence of progression, will be included in the assessment of DCR. This will be irrespective of whether or not subjects discontinued treatment or received a subsequent therapy prior to progression. DCR will be evaluated for the subset of the FAS with measurable disease at baseline (the EFR set).
• Progression-free survival (PFS) - Part 2 [ Time Frame: When 247 OS events have occurred. With median OS times of 8.6 months and 6 months for respective arms, 247 OS is estimated to occur after approximately 31 months. ]
  Part 2: PFS Defined as the time from randomization until the date of objective disease progression or death (by any cause in the absence of progression). Progression is defined in accordance with the RECIST v1.1 criteria and will be derived programmatically based on data from the ICR of radiological data.
• Incidence of Adverse Events (AEs) - Part 2 [ Time Frame: When 247 OS events have occurred. With median OS times of 8.6 months and 6 months for respective arms, 247 OS is estimated to occur after approximately 31 months. ]
  Part 2: Incidence of AEs, categorized in accordance to CTCAE 4.03 and changes from baseline in safety parameters (including vital signs, ECG parameters, clinical laboratory tests)
• Population Pharmacokinetics evaluation using Nonlinear Mixed Effect Model (NLME) - Part 2 [ Time Frame: Cycle 1 Day 1 and Cycle 2 Day 1: pre-dose, 1-3 hours post dose, 3-5 hours post dose, and 5-8 hours post dose. Data Cut Off at when 247 OS events have occurred, estimated to occur 31 months after the first patient in for part 2 ]
  Part 2: Sparse Pharmacokinetics sampling of varlitinib

• Current Other Pre-specified Outcome Measures: Not Provided
• Original Other Pre-specified Outcome Measures: Not Provided

Descriptive Information

• Brief Title: Varlitinib in Combination With Capecitabine for Advanced or Metastatic Biliary Tract Cancer
• Official Title: A Multicenter, Double-Blind, Randomized, Placebo-Controlled Study of Varlitinib Plus Capecitabine Versus Placebo Plus Capecitabine in Patients With Advanced or Metastatic Biliary Tract Cancer as Second Line Systemic Therapy
• Brief Summary: This protocol for Varlitinib is developed for the treatment of Biliary Tract Cancer. Varlitinib (also known as ASLAN001) is a small-molecule, adenosine triphosphate competitive inhibitor of the tyrosine kinases - epidermal growth factor receptor (EGFR), human epidermal growth factor receptor (HER)2, and HER4. Varlitinib may be beneficial to subjects with cancer by simultaneous inhibition of these receptors. The purpose of this study is to determine the safety and efficacy of Varlitinib in combination with capecitabine for the treatment of Biliary Tract Cancer. Treatment groups are Varlitinib+capecitabine and Placebo + capecitabine

Detailed Description

Part 1 of study(Phase 2) is planned to have 120 patients and anticipated completion on July 2019. Recruitment completed.

Part 2 of study(Phase 3) is planned to have 350 patients and anticipated completion on Dec 2022. Not yet recruiting.

• Study Type: Interventional
• Study Phase: Phase 2; Phase 3

Study Design

Allocation: Randomized
Intervention Model: Parallel Assignment
Intervention Model Description:

Treatment: protocol designed to evaluate one or more interventions for treating a disease, syndrome or condition

Masking: Double (Participant, Investigator)
Primary Purpose: Treatment

• Condition: Biliary Tract Cancer

Intervention

• Drug: Varlitinib
  Varlitinib:300mg, oral tablets, twice daily. Number of cycles: until disease progression, unacceptable toxicity, withdrawal of consent, or death.
  Other Names:

  • ASLAN001
  • ARRY-334543
  • QBT01
• Drug: Capecitabine
  1000mg/m2, oral tablets, twice daily for 2 weeks followed by a 1-week rest period in 3-week cycles. Number of cycles: until disease progression, unacceptable toxicity, withdrawal of consent, or death.
• Drug: Placebo (for Varlitinib)
  oral tablets, twice daily. Number of cycles: until disease progression, unacceptable toxicity, withdrawal of consent, or death

Study Arms

• Experimental: Varlitinib and Capecitabine
  Interventions:

  • Drug: Varlitinib
  • Drug: Capecitabine
• Placebo Comparator: Placebo and Capecitabine
  Interventions:

  • Drug: Capecitabine
  • Drug: Placebo (for Varlitinib)

• Publications *: Not Provided

Recruitment Information

• Recruitment Status: Completed
• Actual Enrollment (submitted: May 17, 2021): 151
• Original Estimated Enrollment (submitted: March 27, 2017): 482
• Actual Study Completion Date: April 17, 2020
• Actual Primary Completion Date: November 12, 2019 (Final data collection date for primary outcome measure)

Eligibility Criteria

Inclusion Criteria:

Subjects will be eligible for the study if they:

1. Are of or older than the legal age in the respective countries at the time when written informed consent is obtained
2. Have histologically or cytologically confirmed advanced (unresectable) or metastatic biliary tract cancer, including intrahepatic or extrahepatic cholangiocarcinoma (CCA), gallbladder cancer and carcinoma of Ampulla of Vater. This includes clinical diagnosis of biliary tract cancer with histological confirmation of adenocarcinoma.
3. Have received and failed one and only one prior line of systemic treatment for advanced or metastatic disease with radiologic evidence of disease progression. This prior line of systemic treatment must also contain gemcitabine
4. Have received at least 6 doses of gemcitabine containing treatment in first line (Adjuvant therapy is not regarded as 1st line therapy)
5. Have radiographically measurable disease based on Response Evaluation Criteria in Solid Tumours (RECIST) v1.1 as assessed by Independent Central Review (ICR) (For Part 1)
6. Have no evidence of biliary duct obstruction, unless obstruction is controlled by local treatment or, in whom the biliary tree can be decompressed by endoscopic or percutaneous stenting with subsequent reduction in bilirubin to below or equal to 1.5 × upper level of normal (ULN)
7. Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
8. Are able to understand and willing to sign the informed consent form

9. Have adequate organ and hematological function:

   1. Hematological function, as follows:

      • Absolute neutrophil count (ANC) ≥ 1.5 × 109/L
      • Platelet count ≥ 100 × 109/L

   2. Renal functions, as follows:

      • Estimated glomerular filtration rate or creatinine clearance > 50 mL/min/1.73m2

   3. Hepatic function, as follows:

      • Albumin ≥ 3 g/dL
      • Total bilirubin ≤ 1.5 × ULN
      • Aspartate aminotransferase and alanine aminotransferase ≤ 5 × ULN

Exclusion Criteria:

Subjects will be ineligible for the study if they:

1. Are currently on or have received anti-cancer therapy within the past 3 weeks before receiving the first dose of study medication
2. Are currently on or have received radiation or local treatment within the past 3 weeks for the target lesion(s) before receiving the first dose of study medication
3. Have evidence of multiple (≥ 2) peritoneal metastases or ascites at baseline as assessed by ICR (For Part 1). (Ascites which can be attributed by non-malignant causes is not excluded. Minimal ascites, which does not require paracentesis is permitted.)
4. Have had major surgical procedures within 14 days prior to first dose of study medication
5. Have a known metastatic brain lesion(s), including asymptomatic and well controlled lesion(s)
6. Have malabsorption syndrome, diseases significantly affecting gastrointestinal function, resection of the stomach or small bowel, or difficulty in swallowing and retaining oral medications which in the opinion of the Investigator could jeopardize the validity of the study results
7. Have uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, unstable angina pectoris, cardiac arrhythmia, diabetes, hypertension, or psychiatric illness/social situations that would limit compliance with study requirements
8. Have any history of other malignancy unless in remission for more than 1 year (non-melanoma skin carcinoma and carcinoma-in-site of uterine cervix treated with curative intent is not exclusionary)
9. Are female patients who are pregnant or breast feeding
10. Have been previously treated with varlitinib or have been previously treated with capecitabine as first line therapy for advanced or metastatic disease. For patients who have previously received capecitabine as a radiosensitizer or as part of their adjuvant therapy and their disease has relapsed for more than 6 months after their last dose of capecitabine adjuvant therapy, their capecitabine therapy will not be considered as a line of systemic chemotherapy for metastatic/advanced disease, and thus they can participate in the study
11. Have received any investigational drug (or have used an investigational device) within the last 14 days before receiving the first dose of study medication
12. Have unresolved or unstable serious toxicity (≥ common terminology criteria for adverse events [CTCAE] 4.03 Grade 2), with the exception of anemia, asthenia, and alopecia, from prior administration of another investigational drug and/or prior cancer treatment
13. Have a known positive test for human immunodeficiency virus, hepatitis C (treatment naïve or after treatment without sustained virologic response), or hepatitis B infection with hepatitis B virus deoxyribonucleic acid exceeding 2000 IU/mL
14. Have a known history of drug addiction within last 1 year which, in the opinion of the Investigator, could increase the risk of non-compliance to investigational product
15. Need continuous treatment with proton pump inhibitors during the study period
16. Have a history of (non-infectious) pneumonitis that required steroids or current pneumonitis, or have a history of interstitial lung disease or current interstitial lung disease
17. Have any history or presence of clinically significant cardiovascular, respiratory, hepatic, renal, hematologic, gastrointestinal, endocrine, immunologic, dermatologic, neurologic or psychiatric disease or any other condition which in the opinion of the Investigator could jeopardize the safety of the patient or the validity of the study results
18. Have a baseline corrected QT interval (Fridericia's formula) (QTcF) > 450 ms or patients with known long QT syndrome; torsade de pointes; symptomatic ventricular tachycardia; an unstable cardiac syndrome in the past 3 months before screening visit; > class 2 New York Heart Association heart failure; or > class 2 angina pectoris; or receiving quinidine, procainamide, disopyramide, amiodarone, dronedarone, arsenic, dofetilide, sotalol, or methadone. Please also see prohibited medication/therapy (Section 5.4.10.1)

Sex/Gender

• Sexes Eligible for Study: All

• Ages: Child, Adult, Older Adult
• Accepts Healthy Volunteers: No
• Contacts: Contact information is only displayed when the study is recruiting subjects
• Listed Location Countries: Australia, China, Hong Kong, Hungary, Japan, Korea, Republic of, Poland, Singapore, Spain, Taiwan, United States

Administrative Information

• NCT Number: NCT03093870
• Other Study ID Numbers: ASLAN001-009
• Has Data Monitoring Committee: Yes

U.S. FDA-regulated Product

• Studies a U.S. FDA-regulated Drug Product: Yes
• Studies a U.S. FDA-regulated Device Product: No

IPD Sharing Statement

• Plan to Share IPD: No

• Current Responsible Party: ASLAN Pharmaceuticals
• Original Responsible Party: Same as current
• Current Study Sponsor: ASLAN Pharmaceuticals
• Original Study Sponsor: Same as current

Collaborators

• bioRASI, LLC
• CMIC Co, Ltd. Japan
• Syneos Health

• Investigators: Not Provided
• PRS Account: ASLAN Pharmaceuticals
• Verification Date: June 2021