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A Study of BBI608 in Combination With Standard Chemotherapies in Adult Patients With Advanced Gastrointestinal Cancer

A Phase Ib/II Clinical Study of BBI608 in Combination With Standard Chemotherapies in Adult Patients With Advanced Gastrointestinal Cancer

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02024607
Enrollment
495
Registered
2013-12-31
Start date
2014-01-31
Completion date
2019-11-30
Last updated
2023-11-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Gastrointestinal Cancer

Brief summary

This is an open label, multi-center, Phase 1/2 dose escalation study of BBI608 administered in combination with either FOLFOX6 with and without bevacizumab, or CAPOX, or FOLFIRI with and without bevacizumab, or regorafenib, or irinotecan.

Detailed description

This is an open label, multi-center, Phase 1/2 dose escalation study of BBI608 administered in combination with either FOLFOX6 with and without bevacizumab, or CAPOX, or FOLFIRI with and without bevacizumab, or regorafenib, or irinotecan. A study cycle will consist of daily and continuous oral administration of BBI608 for four weeks (28 days) in combination with FOLFOX6 with and without bevacizumab, or CAPOX, or FOLFIRI with and without bevacizumab, or regorafenib, or irinotecan.

Interventions

DRUGBBI608
DRUGFluorouracil
DRUGOxaliplatin
DRUGLeucovorin
DRUGIrinotecan
DRUGBevacizumab
DRUGCapecitabine
DRUGRegorafenib

Sponsors

Sumitomo Pharma America, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Signed written informed consent 2. A histologically confirmed solid tumor of the gastrointestinal tract including 1. Advanced unresectable, metastatic or recurrent colorectal carcinoma (CRC) for which treatment with FOLFOX6 with or without bevacizumab, FOLFIRI with or without bevacizumab, CAPOX, or regorafenib would be acceptable as determined by the Investigator. FOLFIRI/XELIRI-refractory patients with CRC enrolling on the FOLFIRI study arm must have failed treatment with one FOLFIRI pr XELIRI with or without bevacizumab regimen for unresectable or metastatic disease. Treatment failure is defined as progression of disease (clinical or radiologic) during treatment with FOLFIRI with or without bevacizumab or \< 3 months after the last dose of treatment with FOLFIRI with or without bevacizumab. Patients with CRC enrolling on the regorafenib arm of this study will have previously received at least two previous lines of therapy for advanced colorectal cancer, and will have previously received treatment with a fluoropyrimidine, oxaliplatin, and irinotecan. Patients with K-ras wild type tumors enrolling on the regorafenib arm will also have previously received either cetuximab or panitumumab. 2. Hepatocellular carcinoma for which treatment with FOLFOX6 or CAPOX would be acceptable as determined by the Investigator. 3. Pancreatic adenocarcinoma for which treatment with FOLFOX6, CAPOX, FOLFIRI, or irinotecan would be acceptable as determined by the Investigator. 4. Cholangiocarcinoma for which treatment with FOLFOX6 or CAPOX would be acceptable as determined by the Investigator. 5. Gastric, GEJ or esophageal adenocarcinoma for which treatment with FOLFOX6, CAPOX, FOLFIRI, or irinotecan would be acceptable as determined by the Investigator. 3. Patients may be treatment naïve, or may have received standard chemotherapy; including regimens containing a fluoropyrimidine, or oxaliplatin, or irinotecan, or regorafenib, or bevacizumab. 4. ≥18 years of age. 5. Karnofsky performance status score ≥70%. 6. Male or female patients of child-producing potential agree to use contraception or avoidance of pregnancy measures during the study and for 30 days after the last BBI608 dose. 7. Females of childbearing potential have a negative serum pregnancy test. 8. AST level ≤2.5 x ULN and ALT ≤ 2.5 × ULN. For patients with liver metastases, AST ≤3.5 x ULN, and AST ≤3.5 x ULN may be enrolled if agreed upon by the investigator and medical monitor for the sponsor. 9. Hemoglobin ≥10 g/dl. 10. Total bilirubin level ≤1.5 × ULN. 11. Creatinine ≤1.5 x ULN or creatinine clearance \>60 mL/min/1.73 m\^2 for patients with creatinine levels above institutional normal (as determined by Cockcroft-Gault equation). 12. Absolute neutrophil count ≥ 1.5 x 10\^9/L. 13. Platelets ≥100 x 10\^9/L. 14. Life expectancy estimated at ≥3 months.

Exclusion criteria

1. Anti-cancer chemotherapy, radiotherapy, immunotherapy, or investigational agents within 7 days of the first dose of BBI608. 2. Major surgery within 4 weeks prior to first dose. 3. Any known untreated brain metastases. Treated subjects must be stable for 4 weeks after completion of that treatment, with image documentation required. Patients must have no clinical symptoms from brain metastases and must be either off steroids or on a stable dose of steroids for at least 2 weeks prior to protocol enrollment. Patients with known leptomeningeal metastases are excluded, even if treated. 4. Pregnant or breastfeeding. 5. Significant gastrointestinal disorder(s) that would, in the opinion of the Principal Investigator, prevent absorption of an orally available agent 6. Unable or unwilling to swallow BBI608 capsules daily. 7. Prior treatment with BBI608. 8. Uncontrolled intercurrent illness 9. For patients to be treated with a regimen containing 5-fluorouracil/leucovorin: 1. Known hypersensitivity to 5-fluorouracil/leucovorin 2. Known dihydropyrimidine dehydrogenase (DPD) deficiency 10. For patients to be treated with a regimen containing capecitabine: 1. Known hypersensitivity to capecitabine 2. Known dihydropyrimidine dehydrogenase (DPD) deficiency 3. Significant gastrointestinal disorder(s) that would, in the opinion of the Principal Investigator, prevent absorption of an orally available agent 11. For patients to be treated with a regimen containing oxaliplatin: 1. Neurosensory neuropathy ≥ grade 2 at baseline 2. Known hypersensitivity to oxaliplatin or other platinum containing compounds 12. For patients to be treated with a regimen containing irinotecan: 1. Known hypersensitivity to irinotecan 2. Abnormal glucuronidation of bilirubin 13. For patients to be treated with a regimen containing bevacizumab: 1. Current uncontrolled hypertension as well as prior history of hypertensive crisis or hypertensive encephalopathy 2. History of cardiac disease: congestive heart failure (CHF) \> NYHA Class II; active coronary artery disease, myocardial infarction within 6 months prior to study entry; unevaluated new onset angina within 3 months or unstable angina or cardiac arrhythmias requiring anti-arrhythmic therapy 3. History of arterial thrombotic or embolic events (within 6 months prior to study entry) 4. Significant vascular disease 5. Evidence of bleeding diathesis or clinically significant coagulopathy 6. Major surgical procedure within 28 days, or anticipation of the need for major surgical procedure during the course of the study as well as minor surgical procedure within 7 days prior to study enrollment 7. Proteinuria at screening as demonstrated by urinalysis with proteinuria ≥ 2+. 8. History of abdominal fistula, gastrointestinal perforation, peptic ulcer, or intra-abdominal abscess within 6 months 9. Ongoing serious, non-healing wound, ulcer, or bone fracture 10. Known hypersensitivity to any component of bevacizumab 11. History of reversible posterior leukoencephalopathy syndrome (RPLS) 14. For patients to be treated with a regimen containing regorafenib: 1. History of cardiac disease: congestive heart failure (CHF) \> NYHA Class II; active coronary artery disease, myocardial infarction within 6 months prior to study entry; unevaluated new onset angina within 3 months or unstable angina or cardiac arrhythmias requiring anti-arrhythmic therapy 2. Current uncontrolled hypertension 3. Interstitial lung disease with ongoing signs and symptoms at the time of screening 4. History of HIV infection or chronic hepatitis B or C 5. Active clinically serious infections 6. History of arterial or embolic events (within 6 months prior to study entry) 7. Liver cirrhosis ≥ Child-Pugh class B with uncontrolled ascites 8. History of RPLS 9. Ongoing serious, non-healing wound, ulcer, or bone fracture 10. Evidence of bleeding diathesis or a clinically significant coagulopathy 11. Renal failure requiring hemo- or peritoneal dialysis 12. Persistent proteinuria of CTCAE grade 3 (\>3.5g/24 hours) 13. Significant gastrointestinal disorder(s) that would, in the opinion of the Principal Investigator, prevent absorption of an orally available agent 14. Known hypersensitivity to regorafenib

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Adverse Events and Serious Adverse EventsThe time from the date of first treatment, while the patient is taking napabucasin, and for 30 days after stopping therapy, an average of 4 months.Assessment of safety of napabucasin administered in combination with either FOLFOX6 with and without bevacizumab, or CAPOX, or FOLFIRI with and without bevacizumab, or regorafenib, or irinotecan in participants with advanced gastrointestinal malignancies by reporting of adverse events and serious adverse events
The Objective Response Rate of Napabucasin Administered in Combination in FOLFIRI in Patients With FOLFIRI/XELIRI-refractory Metastatic Colorectal CancerFrom the date of first treatment, every 8 weeks, until the date of first documented objective disease progression, up to 24 monthsAssessment of the objective response rate (ORR) of napabucasin administered in combination with FOLFIRI in patients with FOLFIRI/XELIRI-refractory metastatic colorectal cancer. The Objective Response Rate (ORR) is the proportion of participants with a complete response or partial response who have measurable disease at baseline imaging.

Secondary

MeasureTime frameDescription
Disease Control RateFrom the date of first treatment, every 8 weeks, until the date of first documented objective disease progression, up to 24 months.To determine the anti-tumor activity (specifically the disease control rate) of napabucasin administered in combination with either FOLFOX6 with and without bevacizumab, or CAPOX, or FOLFIRI with and without bevacizumab, or regorafenib, or irinotecan. Percentage of participants with a documented complete response, partial response and stable disease based on RECIST 1.1.
Disease Control Rate of Patients With FOLFIRI/XELIRI-refractory Metastatic Colorectal CancerFrom the date of first treatment, every 8 weeks, until the date of first documented objective disease progression, up to 24 monthsTo determine the disease control rate of napabucasin administered in combination with FOLFIRI in patients with FOLFIRI/XELIRI-refractory metastatic colorectal cancer. Percentage of participants with a documented complete response, partial response and stable disease based on RECIST 1.1.
Determination of the Maximum Observed Concentration (Cmax) and Area Under the Plasma Concentration vs. Time Curve (AUClast)Blood samples drawn on days 1, 2, 15, 16, 21, and 22 of the first study cycleTo determine the maximum concentration of napabucasin and the area under the plasma concentration vs. time curve of napabucasin when administered in combination with either FOLFOX6 with and without bevacizumab, or CAPOX, or FOLFIRI with and without bevacizumab, or regorafenib.
Overall Survival of Patients With FOLFIRI/XELIRI-refractory Metastatic Colorectal Cancer4 weeks after the patient has been off study treatment, every 3 months thereafter until death, the study closes, up to 36 months.The effect of napabucasin given in combination with FOLFIRI on Overall Survival (OS) of patients with FOLFIRI/XELIRI-refractory metastatic colorectal cancer.
Progression Free Survival of Patients With FOLFIRI/XELIRI-refractory Metastatic Colorectal CancerThe time from the date of first treatment to the date of first documentation of disease progression or death due to any cause, up to thirty six monthsThe effect of napabucasin given in combination with FOLFIRI on Progression Free Survival (PFS) of patients with FOLFIRI/XELIRI-refractory metastatic colorectal cancer. PFS of patients with FOLFIRI/XELIRI-refractory metastatic colorectal cancer.
PharmacodynamicsDay 1 of cycle 2To determine the response (increase or decrease) of biomarkers from biopsied tumors following the administration of napabucasin

Countries

Canada, United States

Participant flow

Recruitment details

495 participants were enrolled between March 2014 and September 2017.

Pre-assignment details

Participants who died, withdrew consent to survival follow up or were lost to follow up were considered to have completed the study.

Participants by arm

ArmCount
Napabucasin Plus FOLFOX6
All participants who were enrolled to Arm A to receive napabucasin administered orally, twice daily, in combination with FOLFOX6 regimen administered every 14 days. The regimen consisted of oxaliplatin 85 mg/m2 together with leucovorin 400 mg/m2 administered intravenously starting on Day 1 of Cycle 1, after the first daily dose of napabucasin. A 5-FU 400 mg/m2 bolus was administered intravenously immediately following oxaliplatin/leucovorin infusion, followed by 5-FU 1200 mg/m2/day (total 2400 mg/m2 over 46-48 hours) by continuous intravenous (IV) infusion.
115
Napabucasin Plus FOLFOX6 Plus Bevacizumab
All participants who were enrolled to Arm B to receive napabucasin administered orally, twice daily, in combination with FOLFOX6 plus bevacizumab regimen administered every 14 days. The regimen consisted of oxaliplatin 85 mg/m2 together with leucovorin 400 mg/m2 administered intravenously over 2 hours starting on Day1 of Cycle 1, following the first daily dose of napabucasin. A 5-FU 400 mg/m2 bolus was administered intravenously immediately following oxaliplatin/leucovorin infusion, followed by 5-FU 1200 mg/m2/day (total 2400 mg/m2 over 46-48 hours) by continuous IV infusion. Bevacizumab 5 mg/kg was administered intravenously following the oxaliplatin/leucovorin infusion.
41
Napabucasin Plus CAPOX
All participants who were enrolled to Arm C to receive napabucasin administered orally, twice daily, in combination with CAPOX regimen. The CAPOX regimen was administered orally (capecitabine) and by IV (oxaliplatin). Starting on Day 1 of Cycle 1, capecitabine 850 mg/m2 was administered orally BID following the first daily dose of napabucasin for 14 consecutive days and repeated every 21 days. Oxaliplatin 130 mg/m2 was administered intravenously over 2 hours, following the first daily dose of napabucasin starting on Day 1 of Cycle 1 and repeated every 21 days thereafter. If capecitabine was tolerated at the 850 mg/m2 BID dose, the dosage could have been increased to 1000 mg/m2 BID as tolerated after the first cycle.
87
Napabucasin Plus FOLFIRI
All participants who were enrolled to Arm D to receive napabucasin administered orally, twice daily, in combination with FOLFIRI regimen. Irinotecan 180 mg/m2 together with leucovorin 400 mg/m2 was administered intravenously starting on Day 1 of Cycle 1, following the first dose of napabucasin. A 5-FU 400 mg/m2 bolus was administered intravenously immediately following irinotecan/leucovorin infusion, followed by 5-FU 1200 mg/m2/day (total 2400 mg/m2) by continuous infusion. This regimen was repeated every 14 days thereafter.
156
Napabucasin Plus FOLFIRI Plus Bevacizumab
All participants who were enrolled to Arm E to receive napabucasin administered orally, twice daily, in combination with FOLFIRI plus bevacizumab regimen. Irinotecan 180 mg/m2 together with leucovorin 400 mg/m2 was administered intravenously starting on Day 1 of Cycle 1, following the first dose of napabucasin. A 5-FU 400 mg/m2 bolus was administered intravenously immediately following irinotecan/leucovorin infusion, followed by 5 FU 1200 mg/m2/day (total 2400 mg/m2) by continuous infusion. Bevacizumab 5 mg/kg was administered intravenously following the irinotecan/leucovorin infusion. This regimen was repeated every 14 days thereafter.
40
Napabucasin Plus Regorafenib
All participants who were enrolled to Arm F to receive napabucasin administered orally, twice daily, in combination with regorafenib 120 mg, administered orally once daily with a low-fat meal, starting on Day 1 of Cycle 1 for 21 consecutive days of every 28 days thereafter. If regorafenib was tolerated in the first cycle, the dosage could have been increased to 160 mg once daily as tolerated after the first cycle.
54
Napabucasin Plus Irinotecan
All participants who were enrolled to Arm G to receive napabucasin administered orally, twice daily, in combination with irinotecan 180 mg/m2, administered intravenously starting on Day 1 of Cycle 1, following the first dose of napabucasin. This regimen was repeated every 14 days thereafter.
2
Total495

Baseline characteristics

CharacteristicNapabucasin Plus FOLFOX6TotalNapabucasin Plus IrinotecanNapabucasin Plus RegorafenibNapabucasin Plus FOLFIRI Plus BevacizumabNapabucasin Plus FOLFIRINapabucasin Plus CAPOXNapabucasin Plus FOLFOX6 Plus Bevacizumab
Age, Continuous61.6 years
STANDARD_DEVIATION 9.26
59.4 years
STANDARD_DEVIATION 11.42
73.0 years
STANDARD_DEVIATION 1.41
57.5 years
STANDARD_DEVIATION 11.56
55.8 years
STANDARD_DEVIATION 7.25
58.3 years
STANDARD_DEVIATION 12.18
62.7 years
STANDARD_DEVIATION 11.69
55.4 years
STANDARD_DEVIATION 13.54
Race/Ethnicity, Customized
American Indian or Alaska Native
2 Participants2 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Asian
4 Participants16 Participants1 Participants1 Participants0 Participants5 Participants2 Participants3 Participants
Race/Ethnicity, Customized
Black
10 Participants43 Participants0 Participants4 Participants4 Participants14 Participants8 Participants3 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Other
0 Participants8 Participants0 Participants0 Participants1 Participants3 Participants4 Participants0 Participants
Race/Ethnicity, Customized
White
99 Participants426 Participants1 Participants49 Participants35 Participants134 Participants73 Participants35 Participants
Sex: Female, Male
Female
49 Participants189 Participants1 Participants28 Participants15 Participants52 Participants32 Participants12 Participants
Sex: Female, Male
Male
66 Participants306 Participants1 Participants26 Participants25 Participants104 Participants55 Participants29 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
deaths
Total, all-cause mortality
104 / 11531 / 4182 / 87129 / 15633 / 4050 / 542 / 2
other
Total, other adverse events
115 / 11541 / 4187 / 87156 / 15640 / 4054 / 542 / 2
serious
Total, serious adverse events
52 / 11510 / 4140 / 8758 / 15616 / 4023 / 542 / 2

Outcome results

Primary

Number of Participants With Adverse Events and Serious Adverse Events

Assessment of safety of napabucasin administered in combination with either FOLFOX6 with and without bevacizumab, or CAPOX, or FOLFIRI with and without bevacizumab, or regorafenib, or irinotecan in participants with advanced gastrointestinal malignancies by reporting of adverse events and serious adverse events

Time frame: The time from the date of first treatment, while the patient is taking napabucasin, and for 30 days after stopping therapy, an average of 4 months.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Napabucasin Plus FOLFOX6Number of Participants With Adverse Events and Serious Adverse Events115 Participants
Napabucasin Plus FOLFOX6 Plus BevacizumabNumber of Participants With Adverse Events and Serious Adverse Events41 Participants
Napabucasin Plus CAPOXNumber of Participants With Adverse Events and Serious Adverse Events87 Participants
Napabucasin Plus FOLFIRINumber of Participants With Adverse Events and Serious Adverse Events156 Participants
Napabucasin Plus FOLFIRI Plus BevacizumabNumber of Participants With Adverse Events and Serious Adverse Events40 Participants
Napabucasin Plus RegorafenibNumber of Participants With Adverse Events and Serious Adverse Events54 Participants
Napabucasin Plus IrinotecanNumber of Participants With Adverse Events and Serious Adverse Events2 Participants
Primary

The Objective Response Rate of Napabucasin Administered in Combination in FOLFIRI in Patients With FOLFIRI/XELIRI-refractory Metastatic Colorectal Cancer

Assessment of the objective response rate (ORR) of napabucasin administered in combination with FOLFIRI in patients with FOLFIRI/XELIRI-refractory metastatic colorectal cancer. The Objective Response Rate (ORR) is the proportion of participants with a complete response or partial response who have measurable disease at baseline imaging.

Time frame: From the date of first treatment, every 8 weeks, until the date of first documented objective disease progression, up to 24 months

Population: Analysis limited to a subset of group D in which patients had FOLFIRI/XELIRI refractory metastatic colorectal cancer. Patients in this subgroup also had a baseline scan and at least 1 disease assessment following the initiation of therapy.

ArmMeasureValue (NUMBER)
Napabucasin Plus FOLFOX6The Objective Response Rate of Napabucasin Administered in Combination in FOLFIRI in Patients With FOLFIRI/XELIRI-refractory Metastatic Colorectal Cancer0 percentage of participants
Secondary

Determination of the Maximum Observed Concentration (Cmax) and Area Under the Plasma Concentration vs. Time Curve (AUClast)

To determine the maximum concentration of napabucasin and the area under the plasma concentration vs. time curve of napabucasin when administered in combination with either FOLFOX6 with and without bevacizumab, or CAPOX, or FOLFIRI with and without bevacizumab, or regorafenib.

Time frame: Blood samples drawn on days 1, 2, 15, 16, 21, and 22 of the first study cycle

Population: Sponsor's decision to terminate further development of the napabucasin program. Data collection and analysis were therefore not conducted as planned.

Secondary

Disease Control Rate

To determine the anti-tumor activity (specifically the disease control rate) of napabucasin administered in combination with either FOLFOX6 with and without bevacizumab, or CAPOX, or FOLFIRI with and without bevacizumab, or regorafenib, or irinotecan. Percentage of participants with a documented complete response, partial response and stable disease based on RECIST 1.1.

Time frame: From the date of first treatment, every 8 weeks, until the date of first documented objective disease progression, up to 24 months.

Population: Patients who received at least 1 cycle of study treatment and had at least 1 disease assessment following the initiation of therapy. Patients missing imaging assessment following the initiation of treatment are not included in the assessment for DCR.

ArmMeasureValue (NUMBER)
Napabucasin Plus FOLFOX6Disease Control Rate54.7 percentage of participants
Napabucasin Plus FOLFOX6 Plus BevacizumabDisease Control Rate76.2 percentage of participants
Napabucasin Plus CAPOXDisease Control Rate55.3 percentage of participants
Napabucasin Plus FOLFIRIDisease Control Rate65.7 percentage of participants
Napabucasin Plus FOLFIRI Plus BevacizumabDisease Control Rate87.0 percentage of participants
Napabucasin Plus RegorafenibDisease Control Rate34.4 percentage of participants
Napabucasin Plus IrinotecanDisease Control Rate100 percentage of participants
Secondary

Disease Control Rate of Patients With FOLFIRI/XELIRI-refractory Metastatic Colorectal Cancer

To determine the disease control rate of napabucasin administered in combination with FOLFIRI in patients with FOLFIRI/XELIRI-refractory metastatic colorectal cancer. Percentage of participants with a documented complete response, partial response and stable disease based on RECIST 1.1.

Time frame: From the date of first treatment, every 8 weeks, until the date of first documented objective disease progression, up to 24 months

Population: Patients with FOLFIRI/XELIRI refractory metastatic colorectal cancer who received at least 1 cycle of study treatment and had at least 1 disease assessment following the initiation of therapy. Patients missing imaging assessment following the initiation of treatment are not included in the assessment for DCR.

ArmMeasureValue (NUMBER)
Napabucasin Plus FOLFOX6Disease Control Rate of Patients With FOLFIRI/XELIRI-refractory Metastatic Colorectal Cancer56.9 percentage of participants
Secondary

Overall Survival of Patients With FOLFIRI/XELIRI-refractory Metastatic Colorectal Cancer

The effect of napabucasin given in combination with FOLFIRI on Overall Survival (OS) of patients with FOLFIRI/XELIRI-refractory metastatic colorectal cancer.

Time frame: 4 weeks after the patient has been off study treatment, every 3 months thereafter until death, the study closes, up to 36 months.

Population: Analysis limited to a subset of group D in which patients had FOLFIRI/XELIRI refractory metastatic colorectal cancer.

ArmMeasureValue (MEDIAN)
Napabucasin Plus FOLFOX6Overall Survival of Patients With FOLFIRI/XELIRI-refractory Metastatic Colorectal Cancer8.97 months
Secondary

Pharmacodynamics

To determine the response (increase or decrease) of biomarkers from biopsied tumors following the administration of napabucasin

Time frame: Day 1 of cycle 2

Population: No on-treatment biopsies were performed therefore no pharmacodynamic testing on tumor tissue was conducted.

Secondary

Progression Free Survival of Patients With FOLFIRI/XELIRI-refractory Metastatic Colorectal Cancer

The effect of napabucasin given in combination with FOLFIRI on Progression Free Survival (PFS) of patients with FOLFIRI/XELIRI-refractory metastatic colorectal cancer. PFS of patients with FOLFIRI/XELIRI-refractory metastatic colorectal cancer.

Time frame: The time from the date of first treatment to the date of first documentation of disease progression or death due to any cause, up to thirty six months

Population: Analysis limited to a subset of group D in which patients had FOLFIRI/XELIRI refractory metastatic colorectal cancer. Patients in this subgroup also had a baseline scan and at least 1 on study scan or died from any cause.

ArmMeasureValue (NUMBER)
Napabucasin Plus FOLFOX6Progression Free Survival of Patients With FOLFIRI/XELIRI-refractory Metastatic Colorectal Cancer20.82 months

Source: ClinicalTrials.gov · Data processed: Mar 4, 2026