Skip to content

COLUMBIA-1: Novel Oncology Therapies in Combination With Chemotherapy and Bevacizumab as First- Line Therapy in MSS-CRC

A Phase Ib/II, Open-label, Multicenter Study of Novel Oncology Therapies in Combination With Chemotherapy and Bevacizumab as First-line Therapy in Metastatic Microsatellite-stable Colorectal Cancer (COLUMBIA-1)

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04068610
Enrollment
61
Registered
2019-08-28
Start date
2019-09-13
Completion date
2026-11-24
Last updated
2026-08-11

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

Conditions

Metastatic Microsatellite-stable Colorectal Cancer

Keywords

Microsatellite, colorectal, MSS-CRC, colon cancer

Brief summary

COLUMBIA-1 is a Phase 1b/2 platform study to evaluate the safety and efficacy of standard of care (FOLFOX plus bevacizumab) alone and in combination with novel oncology therapies in first-line metastatic microsatellite-stable colorectal cancer (MSS-CRC).

Detailed description

COLUMBIA-1 is a Phase 1b/2, open-label, multicenter, randomized, multidrug platform study to evaluate the safety and efficacy of standard of care (FOLFOX plus bevacizumab) in combination with novel oncology therapies in patients with first-line metastatic MSS-CRC. The study is designed to concurrently evaluate potential novel combinations with clinical promise using a 2-part approach. Part 1 is a Phase 1b study of safety, and Part 2 is a Phase 2 study of efficacy and safety.

Interventions

DRUGDurvalumab

Participants will receive IV infusion of durvalumab as stated in arm description.

DRUGOleclumab

Participants will receive IV infusion of oleclumab as stated in arm description.

DRUGFOLFOX

Participants will receive IV infusion of FOLFOX (5-FU, oxaliplatin, and folinic acid) as stated in arm description.

DRUGBevacizumab

Participants will receive IV infusion of bevacizumab as stated in arm description.

Sponsors

MedImmune LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

The study is designed to concurrently evaluate potential novel combinations with clinical promise using a 2-part approach. Part 1 is a Phase 1b study of safety, and Part 2 is a Phase 2 study of efficacy and safety. The treatment regimens evaluated in Part 2 will depend on the evaluation of safety outcomes in Part 1. Following a screening period of up to 28 days, participants will be centrally assigned (Part 1) or randomized (Part 2) to one of the open study arms. In both study parts, study treatment may be administered until disease progression or any discontinuation criteria are met. In Part 2, experimental arms may be closed early based on futility from results of a planned interim analysis for each study arm. In both parts, new experimental arms consisting of FOLFOX and bevacizumab plus novel agent(s) may be added based on emerging nonclinical and clinical data via protocol amendment.

Eligibility

Sex/Gender
ALL
Age
18 Years to 101 Years
Healthy volunteers
No

Inclusion criteria

1. Written informed consent and any locally required authorization obtained from the participant/legal representative prior to performing any protocol-related procedures, including screening evaluations. 2. Age ≥ 18 years at the time of screening. 3. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. 4. Participants must have histologic documentation of advanced or metastatic CRC and: (a) A documented mutation test during screening and confirmed tumor locations from disease assessment for enrollment. (b) Participants must NOT have defective deoxyribonucleic acid (DNA) mismatch repair (MSI) as documented by testing. (c) Participants must not have received any prior systemic therapy for recurrent/metastatic disease (prior adjuvant chemotherapy or radio-chemotherapy is acceptable so long as progression was not within 6 months of completing the adjuvant regimen). 5. Participants must have at least one lesion that is measurable by RECIST v1.1 (Eisenhauer et al, 2009). 6. Participants must have adequate organ function. 7. Participants with medical conditions requiring systemic anticoagulation (eg, atrial fibrillation) are eligible provided that both of the following criteria are met: - The participant has an in-range International Normalized Ratio (INR) on a stable dose of oral anticoagulant or be on a stable dose of low molecular weight heparin. - The participant has no active bleeding or pathological condition that carries a high risk of bleeding. 8. Body weight \>35 kg. 9. Adequate method of contraception per protocol.

Exclusion criteria

1. History of allogeneic organ transplantation. 2. Active or prior documented autoimmune disorders within the past 5 years. 3. History of venous thrombosis within the past 3 months. 4. Cardiovascular criteria: (a) Presence of acute coronary syndrome including myocardial infarction or unstable angina pectoris, other arterial thrombotic event including cerebrovascular accident or transient ischemic attack or stroke within the past 6 months. (b) New York Heart Association (NYHA) class II or greater congestive heart failure, serious cardiac arrhythmia requiring medication, or uncontrolled hypertension. (c) History of hypertensive crisis/hypertensive encephalopathy within the past 6 months. 5. Mean QT interval corrected for heart rate using Fridericia's formula (QTcF) ≥ 470 ms. 6. No significant history of bleeding events or gastrointestinal perforation. 7. Uncontrolled intercurrent illness. 8. History of another primary malignancy except for: (a) Malignancy treated with curative intent and with no known active disease ≥ 5 years of low potential risk for recurrence. (b) Adequately treated non-melanoma skin cancer or lentigo maligna without evidence of disease. (c) Adequately treated carcinoma in situ without evidence of disease. 9. History of active primary immunodeficiency. 10. Active infection including tuberculosis, hepatitis B, hepatitis C, or human immunodeficiency virus. 11. Known allergy or hypersensitivity to any of the study drugs or any of the study drug excipients. 12. Any unresolved toxicity National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) Grade \> 1 from previous anticancer therapy. 13. History of leptomeningeal disease or cord compression. 14. Untreated central nervous system (CNS) metastases. 15. Lack of physical integrity of the upper gastrointestinal tract, malabsorption syndrome, or inability to take oral medication. 16. Known dihydropyrimidine dehydrogenase (DPD) deficiency. 17. Prior immunotherapy or anti-angiogenics. 18. Receipt of live attenuated vaccine within the past 30 days. 19. Major surgical procedure, open biopsy, or significant traumatic injury within the past 28 days. 20. Current or prior use of immunosuppressive medication within the past 14 days, with exceptions per protocol.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Baseline (Day 1) through 90 days after the last dose of study drug (approximately 2.8 years)Number of participants with at least common terminology criteria for adverse events (CTCAE v5.0) 2-grade shift from baseline (last assessment prior to first dose) to worst toxicity grade in clinical laboratory parameters are reported. Clinical laboratory parameter analysis included hematology, clinical chemistry, coagulation, and urinalysis.
Number of Participants With Abnormal Vital Signs Reported as TEAEs in Part 1Day 1 through 90 days after the last dose of study drug (approximately 2.8 years)Number of participants with abnormal vital signs reported as TEAEs are reported. Abnormal vital signs are defined as any abnormal finding in the vital sign parameters (body temperature, blood pressure, and pulse rate).
Percentage of Participants With Objective Response (OR) Per Response Evaluation Criteria in Solid Tumours Version 1.1 (RECIST v1.1) in Part 2Randomization through end of study (approximately 2.6 years)The OR is defined as best overall response (BOR) of confirmed complete response (CR) or confirmed partial response (PR) based on RECIST v1.1 criteria. The CR is defined as disappearance of all target lesions (TLs) and non-target lesions (NTLs), normalization of tumor marker level, any pathological lymph nodes (target and non-target) must have reduction in short axis \< 10 mm, and no new lesion. The PR is defined as at least a 30% decrease in the sum of the diameters (SoD) of TLs (compared to baseline) and no new lesions. Confirmation of CR and PR is required by a repeat, consecutive assessment no less than 4 weeks from the date of first documentation. In Part 2, randomization occurred between Day -8 and the same date as dosing.
Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs) in Part 1Day 1 through 90 days after the last dose of study drug (approximately 2.8 years)An adverse event (AE) is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. A serious adverse event (SAE) is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. The TEAEs are defined as events present at baseline that worsened in intensity after administration of study drug or events absent at baseline that emerged after administration of study drug.
Number of Participants With Dose Limiting Toxicities (DLTs) in Part 1From Day 1 to 28 days after the first dose of novel oncology therapy (durvalumab and oleclumab)DLT: Any study drug related Grade (G)3 or higher toxicity including: any G3/G4 immune-mediated AE, any G3/4 noninfectious pneumonitis/colitis, transaminase elevation (TE) \>8x upper limit of normal (ULN) or total bilirubin (TBL) \>5xULN, increase in aspartate aminotransferase (AST) or alanine aminotransferase (ALT) \>=3xULN along with TBL \>=2xULN, isolated liver TE \>5 but =\<8xULN or isolated TBL \>3 but =\<5xULN that does not downgrade to G1 or less within 14 days of onset, G3 nausea/vomiting/diarrhea that does not resolve to G2 or less within 3 days of maximal supportive care (MSC), G3/4 febrile neutropenia, G3/4 neutropenia not associated with fever/systemic infection, G4 anemia, G3 anemia with clinical sequelae/requires \>2 units of red blood cells transfusion, thrombocytopenia (G4 \>=7 days, G3 that did not improve by at least 1 grade within 7 days, G3/4 associated with G3/higher hemorrhage).

Secondary

MeasureTime frameDescription
Serum Concentrations of Oleclumab in Part 1 (S1) and Part 2 (E1)Part 1: Pre-dose on Day 1 of Cycle 1, 2, 7, and 13; Part 2 (E1): Pre-dose on Day 1 of Cycle 1, 2, 7, 13, and 27Serum concentrations of oleclumab collected over time in Part 1 (S1) and Part 2 (E1) are reported. The LLOQ for oleclumab was considered to be 1 µg/mL.
Serum Concentrations of Bevacizumab in Part 1 (S1)Pre-dose on Day 1 of Cycle 1, 2, 7, 13, and 27Serum concentrations of bevacizumab collected over time in Part 1 (S1) are reported. The LLOQ for bevacizumab was considered to be 500 ng/mL.
Number of Participants With Positive Anti-Drug Antibodies (ADA) to Durvalumab in Part 1 (S1) and Part 2 (E1)Part 1: Pre-dose on Day(D)1 of Cycles(C)1 (baseline [BL]), 3, 7, 13, and 90 days post last dose of study drug (approximately 2.8 years); Part 2(E1):Pre-dose on D1 of C1 (BL), 3, 7, 13, 27, and 90 days post last dose of study drug (approximately 2.6 years)Number of participants with positive ADA to durvalumab in Part 1 (S1) and Part 2 (E1) are reported.
Number of Participants With Positive ADA to Oleclumab in Part 1 (S1) and Part 2 (E1)Part 1: Pre-dose on D1 of C1 (BL), 2, 7, 13, and 90 days post last dose of study drug (approximately 2.8 years); Part 2 (E1): Pre-dose on D1 of C1 (BL), 2, 7, 13, 27, and 90 days post last dose of study drug (approximately 2.6 years)Number of participants with positive ADA to oleclumab in Part 1 (S1) and Part 2 (E1) are reported.
Number of Participants With Positive ADA to Bevacizumab in Part 1 (S1)Pre-dose on D1 of C1 (BL), 2, 7, 13, 27, and 90 days post last dose of study drug (approximately 2.8 years)Number of participants with positive ADA to bevacizumab in Part 1 (S1) are reported.
Percentage of Participants With OR Per RECIST v1.1 in Part 1First dose (Day 1) through end of study (approximately 2.8 years)The OR is defined as BOR of confirmed CR or confirmed PR based on RECIST v1.1 criteria. The CR is defined as disappearance of all TLs and NTLs, normalization of tumor marker level, any pathological lymph nodes (target and non-target) must have reduction in short axis \< 10 mm, and no new lesions. The PR is defined as at least a 30% decrease in the SoD of TLs (compared to baseline) and no new lesions. Confirmation of CR and PR is required by a repeat, consecutive assessment no less than 4 weeks from the date of first documentation.
Best Overall Response (BOR) Per RECIST v1.1 in Part 1First dose (Day 1) through end of study (approximately 2.8 years)BOR: best response including CR, PR, stable disease (SD), progressive disease (PD), and non-evaluable (NE) among all overall responses based on application of RECIST v1.1 to investigator assessments. CR: disappearance of all TLs and NTLs, normalization of tumor marker level, any pathological lymph nodes (target and non-target) must have reduction in short axis \<10 mm, and no new lesions. PR: at least 30% decrease in the SoD of TL (compared to baseline) and no new NTL. Confirmation of CR and PR is required after 4 weeks. PD: at least a 20% increase in the SoDs of TLs, taking as reference the smallest sum on study, and an absolute increase of at least 5mm, or unequivocal progression of existing NTL, or new lesions. SD: neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD in at least 8 weeks from first dose of study drug. NE: either when no or only a subset of lesion measurements are made at an assessment. Number of participants with BOR are reported.
Duration of Response (DoR) Per RECIST v1.1 in Part 1First dose (Day 1) through end of study (approximately 2.8 years)The DoR is defined as the time from the first documentation of a confirmed response (CR or PR) until the first documentation of PD or death due to any cause, whichever occurs first. The CR is defined as disappearance of all TLs and NTLs, normalization of tumor marker level, any pathological lymph nodes (target and non-target) must have reduction in short axis \< 10 mm, and no new lesions. The PR is defined as at least a 30% decrease in the SoD of TLs (compared to baseline) and no new lesion. Confirmation of CR and PR is required by a repeat, consecutive assessment no less than 4 weeks from the date of first documentation. The PD is defined as at least a 20% increase in the SoDs of TLs, taking as reference the smallest sum on study, and an absolute increase of at least 5 mm, or unequivocal progression of existing NTL, or new lesions. The DoR was analyzed using Kaplan-Meier method.
Percentage of Participants With Disease Control (DC) Per RECIST v1.1 in Part 1First dose (Day 1) through end of study (approximately 2.8 years)The DC is defined as BOR of confirmed CR, confirmed PR, or stable disease (SD; maintained for ≥ 16 weeks) per RECIST v1.1. The CR is defined as disappearance of all TLs and NTLs, normalization of tumor marker level, any pathological lymph nodes (target and non-target) must have reduction in short axis \< 10 mm, and no new lesions. The PR is defined as at least a 30% decrease in the SoD of TLs (compared to baseline) and no new lesion. Confirmation of CR and PR is required by a repeat, consecutive assessment no less than 4 weeks from the date of first documentation. The SD is defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD. Participants with SD will be included in the DC if they maintain SD for \>= 16 weeks from start of treatment.
Progression-Free Survival (PFS) Per RECIST v1.1 in Part 1Assignment through end of study (approximately 2.8 years)The PFS is defined as the time from assignment until the first documentation of PD or death due to any cause, whichever occurs first, regardless of whether the participant received subsequent anticancer therapy prior to progression. The PD is defined as at least a 20% increase in the SoDs of TLs, taking as reference the smallest sum on study, and an absolute increase of at least 5 mm, or unequivocal progression of existing NTL, or new lesions. The PFS was analyzed using the Kaplan-Meier method based on application of RECIST v1.1 to investigator assessments. Assignment occurred between Day -3 and -1.
Percentage of Participants With PFS at 12 Months (PFS-12) Per RECIST v1.1 in Part 1Assignment through 12 monthsThe PFS is defined as the time from assignment until the first documentation of PD or death due to any cause, whichever occurs first, regardless of whether the participant received subsequent anticancer therapy prior to progression. The PD is defined as at least a 20% increase in the SoDs of TLs, taking as reference the smallest sum on study, and an absolute increase of at least 5 mm, or unequivocal progression of existing NTL, or new lesions. The PFS was analyzed using Kaplan-Meier method based on application of RECIST v1.1 to investigator assessments. The percentage of participants progression free and alive at 12 months (PFS-12) are reported. Assignment occurred between Day -3 and -1.
Overall Survival (OS) Per RECIST v1.1 in Part 1First dose (Day 1) through end of study (approximately 2.8 years)The OS is defined as the time from first dose until death due to any cause. The overall survival was analyzed using the Kaplan-Meier method based on application of RECIST v1.1 to investigator assessments.
Number of Participants With TEAEs and TESAEs in Part 2Day 1 through 90 days after the last dose of study drug (approximately 2.6 years)An AE is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. A SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. The TEAEs are defined as events present at baseline that worsened in intensity after administration of study drug or events absent at baseline that emerged after administration of study drug.
Number of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Baseline (Day 1) through 90 days after the last dose of study drug (approximately 2.6 years)Number of participants with at least CTCAE v5.0 2-grade shift from baseline (last assessment prior to first dose) to worst toxicity grade in clinical laboratory parameters are reported. Clinical laboratory parameter analysis included hematology, clinical chemistry, coagulation, and urinalysis.
Number of Participants With Abnormal Vital Signs Reported as TEAEs in Part 2Day 1 through 90 days after the last dose of study drug (approximately 2.6 years)Number of participants with abnormal vital signs reported as TEAEs are reported. Abnormal vital signs are defined as any abnormal finding in the vital sign parameters (body temperature, blood pressure, and pulse rate).
BOR Per RECIST v1.1 in Part 2Randomization through end of study (approximately 2.6 years)BOR: best response including CR, PR, SD, PD, NE among all overall responses based on application of RECIST v1.1 to investigator assessments. CR: disappearance of all TLs, NTLs, normalization of tumor marker level, any pathological lymph nodes (target, non-target) must have reduction in short axis \<10 mm, no new lesions. PR: at least 30% decrease in the SoD of TL (compared to baseline) and no new NTL. Confirmation of CR, PR is required after 4 weeks. PD: at least a 20% increase in SoDs of TLs, taking as reference smallest sum on study, and an absolute increase of at least 5 mm, or unequivocal progression of existing NTL, or new lesions. SD: neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD in at least 8 weeks from first dose of study drug. NE: either when no or only a subset of lesion measurements are made at an assessment. Number of participants with BOR are reported. In Part 2, randomization occurred between Day -8 and the same date as dosing.
Percentage of Participants With DC Per RECIST v1.1 in Part 2Randomization through end of study (approximately 2.6 years)The DC is defined as BOR of confirmed CR, confirmed PR, or SD (maintained for ≥ 16 weeks) per RECIST v1.1. The CR is defined as disappearance of all TLs and NTLs, normalization of tumor marker level, any pathological lymph nodes (target and non-target) must have reduction in short axis \< 10 mm, and no new lesions. The PR is defined as at least a 30% decrease in the SoD of TLs (compared to baseline) and no new lesion. Confirmation of CR and PR is required by a repeat, consecutive assessment no less than 4 weeks from the date of first documentation. The SD is defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD. Participants with SD will be included in the DC if they maintain SD for \>= 16 weeks from start of treatment. In Part 2, randomization occurred between Day -8 and the same date as dosing.
DoR Per RECIST v1.1 in Part 2Randomization through end of study (approximately 2.6 years)The DoR is defined as the time from the first documentation of a confirmed response (CR or PR) until the first documentation of PD or death due to any cause, whichever occurs first. The CR is defined as disappearance of all TLs and NTLs, normalization of tumor marker level, any pathological lymph nodes (target and non-target) must have reduction in short axis \< 10 mm, and no new lesions. The PR is defined as at least a 30% decrease in the SoD of TLs (compared to baseline) and no new lesion. Confirmation of CR and PR is required by a repeat, consecutive assessment no less than 4 weeks from the date of first documentation. The PD is defined as at least a 20% increase in the SoDs of TLs, taking as reference the smallest sum on study, and an absolute increase of at least 5 mm, or unequivocal progression of existing NTL, or new lesions. The DoR was analyzed using Kaplan-Meier method. In Part 2, randomization occurred between Day -8 and the same date as dosing.
PFS Per RECIST v1.1 in Part 2Randomization through end of study (approximately 2.6 years)The PFS is defined as the time from randomization until the first documentation of PD or death due to any cause, whichever occurs first, regardless of whether the participant received subsequent anticancer therapy prior to progression. The PD is defined as at least a 20% increase in the SoDs of TLs, taking as reference the smallest sum on study, and an absolute increase of at least 5 mm, or unequivocal progression of existing NTL, or new lesions. The PFS was analyzed using the Kaplan-Meier method based on application of RECIST v1.1 to investigator assessments. In Part 2, randomization occurred between Day -8 and the same date as dosing.
Percentage of Participants With PFS at 12 Months (PFS-12) Per RECIST v1.1 in Part 2Randomization through 12 monthsThe PFS is defined as the time from randomization until the first documentation of PD or death due to any cause, whichever occurs first, regardless of whether the participant received subsequent anticancer therapy prior to progression. The PD is defined as at least a 20% increase in the SoDs of TLs, taking as reference the smallest sum on study, and an absolute increase of at least 5 mm, or unequivocal progression of existing NTL, or new lesions. The PFS was analyzed using Kaplan-Meier method based on application of RECIST v1.1 to investigator assessments. The percentage of participants progression free and alive at 12 months (PFS-12) are reported. In Part 2, randomization occurred between Day -8 and the same date as dosing.
OS Per RECIST v1.1 in Part 2Randomization through end of study (approximately 2.6 years)The OS is defined as the time from randomization until death due to any cause. The overall survival was analyzed using the Kaplan-Meier method based on application of RECIST v1.1 to investigator assessments. In Part 2, randomization occurred between Day -8 and the same date as dosing.
Serum Concentrations of Durvalumab in Part 1 (S1) and Part 2 (E1)Part 1: Pre-dose on Day 1 of Cycle 1, 3, 7, 13; Part 2 (E1): Pre-dose on Day 1 of Cycle 1, 3, 7, 13, and 27Serum concentrations of durvalumab collected over time in Part 1 (S1) and Part 2 (E1) are reported. The lower limit of quantification (LLOQ) for durvalumab was considered to be 50 ng/mL.

Countries

Australia, Canada, France, Spain, United States

Participant flow

Pre-assignment details

A total of 61 participants were randomized in this study of which 59 participants received treatment.

Participants by arm

ArmCount
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + Oleclumab
Participants in Part 1 safety run-in arm (S1) received intravenous (IV) infusions of FOLFOX (5-fluorouracil \[5-FU\]: 2400 mg/m\^2 over 46-48 hours \[Day 1 and 2 of every 14-day Cycle\], oxaliplatin: 85 mg/m\^2, folinic acid: 400 mg/m\^2) and bevacizumab 5 mg/kg on Day 1 of every Cycle (14-day cycle) in combination with IV durvalumab 1500 mg every 4 weeks (Q4W) and IV oleclumab 3000 mg every 2 weeks (Q2W) till 4 doses (Cycle 4) then Q4W starting on Cycle 5 Day 1 until disease progression, unacceptable toxicity, withdrawal of participant consent, or another discontinuation criterion was met.
7
Part 2 (C1): FOLFOX + Bevacizumab
Participants in Part 2 control 1 arm (C1) received IV infusions of FOLFOX (5-FU: 2400 mg/m\^2 over 46-48 hours \[Day 1 and 2 of every 14-day Cycle\], oxaliplatin: 85 mg/m\^2, folinic acid: 400 mg/m\^2) in combination with IV bevacizumab 5 mg/kg on Day 1 of every Cycle (14-day cycle) until disease progression, unacceptable toxicity, withdrawal of participant consent, or another discontinuation criterion was met.
26
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + Oleclumab
Participants in Part 2 experimental 1 arm (E1) received IV infusions of FOLFOX (5-FU: 2400 mg/m\^2 over 46-48 hours \[Day 1 and 2 of every 14-day Cycle\], oxaliplatin: 85 mg/m\^2, folinic acid: 400 mg/m\^2) and bevacizumab 5 mg/kg on Day 1 of every Cycle (14-day cycle) in combination with IV durvalumab 1500 mg Q4W and IV oleclumab 3000 mg Q2W till 4 doses (Cycle 4) then Q4W starting on Cycle 5 Day 1 until disease progression, unacceptable toxicity, withdrawal of participant consent, or another discontinuation criterion was met.
26
Total59

Baseline characteristics

CharacteristicPart 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabPart 2 (C1): FOLFOX + BevacizumabPart 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabTotal
Age, Continuous59.4 Years
STANDARD_DEVIATION 12.4
55.5 Years
STANDARD_DEVIATION 13.5
59.8 Years
STANDARD_DEVIATION 12.5
57.9 Years
STANDARD_DEVIATION 12.9
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants4 Participants1 Participants5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
7 Participants19 Participants23 Participants49 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants3 Participants2 Participants5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants1 Participants2 Participants3 Participants
Race (NIH/OMB)
Black or African American
0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants4 Participants1 Participants5 Participants
Race (NIH/OMB)
White
7 Participants20 Participants23 Participants50 Participants
Sex: Female, Male
Female
3 Participants7 Participants11 Participants21 Participants
Sex: Female, Male
Male
4 Participants19 Participants15 Participants38 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
4 / 78 / 2613 / 26
other
Total, other adverse events
7 / 725 / 2626 / 26
serious
Total, serious adverse events
1 / 77 / 2612 / 26

Outcome results

Primary

Number of Participants With Abnormal Vital Signs Reported as TEAEs in Part 1

Number of participants with abnormal vital signs reported as TEAEs are reported. Abnormal vital signs are defined as any abnormal finding in the vital sign parameters (body temperature, blood pressure, and pulse rate).

Time frame: Day 1 through 90 days after the last dose of study drug (approximately 2.8 years)

Population: As-treated population included all participants who received any study drugs and were analyzed according to the treatment they actually received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Abnormal Vital Signs Reported as TEAEs in Part 1Pyrexia2 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Abnormal Vital Signs Reported as TEAEs in Part 1Temperature intolerance1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Abnormal Vital Signs Reported as TEAEs in Part 1Hypertension3 Participants
Primary

Number of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1

Number of participants with at least common terminology criteria for adverse events (CTCAE v5.0) 2-grade shift from baseline (last assessment prior to first dose) to worst toxicity grade in clinical laboratory parameters are reported. Clinical laboratory parameter analysis included hematology, clinical chemistry, coagulation, and urinalysis.

Time frame: Baseline (Day 1) through 90 days after the last dose of study drug (approximately 2.8 years)

Population: As-treated population included all participants who received any study drugs and were analyzed according to the treatment they actually received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Hemoglobin (Hypo)1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Lymphocytes (Hypo)2 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Neutrophils4 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Leukocytes (Hypo)3 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Activated Partial Thromboplastin Time1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Albumin1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Amylase2 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Bilirubin1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Calcium Corrected (Hypo)1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Creatine Kinase2 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Creatinine1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Gamma Glutamyl Transferase1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Glucose1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Lipase5 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Magnesium (Hyper)1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 1Magnesium (Hypo)1 Participants
Primary

Number of Participants With Dose Limiting Toxicities (DLTs) in Part 1

DLT: Any study drug related Grade (G)3 or higher toxicity including: any G3/G4 immune-mediated AE, any G3/4 noninfectious pneumonitis/colitis, transaminase elevation (TE) \>8x upper limit of normal (ULN) or total bilirubin (TBL) \>5xULN, increase in aspartate aminotransferase (AST) or alanine aminotransferase (ALT) \>=3xULN along with TBL \>=2xULN, isolated liver TE \>5 but =\<8xULN or isolated TBL \>3 but =\<5xULN that does not downgrade to G1 or less within 14 days of onset, G3 nausea/vomiting/diarrhea that does not resolve to G2 or less within 3 days of maximal supportive care (MSC), G3/4 febrile neutropenia, G3/4 neutropenia not associated with fever/systemic infection, G4 anemia, G3 anemia with clinical sequelae/requires \>2 units of red blood cells transfusion, thrombocytopenia (G4 \>=7 days, G3 that did not improve by at least 1 grade within 7 days, G3/4 associated with G3/higher hemorrhage).

Time frame: From Day 1 to 28 days after the first dose of novel oncology therapy (durvalumab and oleclumab)

Population: The DLT evaluable population included all participants in Part 1 safety run-in who received the full prescribed dose of durvalumab and ≥ 75% of the prescribed number of doses of FOLFOX plus bevacizumab and the other novel oncology therapy and completed the safety follow-up through the DLT evaluation period or experienced any DLT.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Dose Limiting Toxicities (DLTs) in Part 10 Participants
Primary

Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs) in Part 1

An adverse event (AE) is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. A serious adverse event (SAE) is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. The TEAEs are defined as events present at baseline that worsened in intensity after administration of study drug or events absent at baseline that emerged after administration of study drug.

Time frame: Day 1 through 90 days after the last dose of study drug (approximately 2.8 years)

Population: As-treated population included all participants who received any study drugs and were analyzed according to the treatment they actually received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs) in Part 1Any TEAE7 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs) in Part 1Any TESAE1 Participants
Primary

Percentage of Participants With Objective Response (OR) Per Response Evaluation Criteria in Solid Tumours Version 1.1 (RECIST v1.1) in Part 2

The OR is defined as best overall response (BOR) of confirmed complete response (CR) or confirmed partial response (PR) based on RECIST v1.1 criteria. The CR is defined as disappearance of all target lesions (TLs) and non-target lesions (NTLs), normalization of tumor marker level, any pathological lymph nodes (target and non-target) must have reduction in short axis \< 10 mm, and no new lesion. The PR is defined as at least a 30% decrease in the sum of the diameters (SoD) of TLs (compared to baseline) and no new lesions. Confirmation of CR and PR is required by a repeat, consecutive assessment no less than 4 weeks from the date of first documentation. In Part 2, randomization occurred between Day -8 and the same date as dosing.

Time frame: Randomization through end of study (approximately 2.6 years)

Population: Intent-to-treat (ITT) population included participants who received any study drug and were analyzed according to the treatment group they were randomized to.

ArmMeasureValue (NUMBER)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabPercentage of Participants With Objective Response (OR) Per Response Evaluation Criteria in Solid Tumours Version 1.1 (RECIST v1.1) in Part 246.2 Percentage of Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabPercentage of Participants With Objective Response (OR) Per Response Evaluation Criteria in Solid Tumours Version 1.1 (RECIST v1.1) in Part 261.5 Percentage of Participants
p-value: 0.317395% CI: [0.6, 5.6]Cochran-Mantel-Haenszel
Secondary

Best Overall Response (BOR) Per RECIST v1.1 in Part 1

BOR: best response including CR, PR, stable disease (SD), progressive disease (PD), and non-evaluable (NE) among all overall responses based on application of RECIST v1.1 to investigator assessments. CR: disappearance of all TLs and NTLs, normalization of tumor marker level, any pathological lymph nodes (target and non-target) must have reduction in short axis \<10 mm, and no new lesions. PR: at least 30% decrease in the SoD of TL (compared to baseline) and no new NTL. Confirmation of CR and PR is required after 4 weeks. PD: at least a 20% increase in the SoDs of TLs, taking as reference the smallest sum on study, and an absolute increase of at least 5mm, or unequivocal progression of existing NTL, or new lesions. SD: neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD in at least 8 weeks from first dose of study drug. NE: either when no or only a subset of lesion measurements are made at an assessment. Number of participants with BOR are reported.

Time frame: First dose (Day 1) through end of study (approximately 2.8 years)

Population: As-treated population included all participants who received any study drugs and were analyzed according to the treatment they actually received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabBest Overall Response (BOR) Per RECIST v1.1 in Part 1CR0 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabBest Overall Response (BOR) Per RECIST v1.1 in Part 1PR5 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabBest Overall Response (BOR) Per RECIST v1.1 in Part 1SD >=8 weeks2 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabBest Overall Response (BOR) Per RECIST v1.1 in Part 1PD0 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabBest Overall Response (BOR) Per RECIST v1.1 in Part 1NE0 Participants
Secondary

BOR Per RECIST v1.1 in Part 2

BOR: best response including CR, PR, SD, PD, NE among all overall responses based on application of RECIST v1.1 to investigator assessments. CR: disappearance of all TLs, NTLs, normalization of tumor marker level, any pathological lymph nodes (target, non-target) must have reduction in short axis \<10 mm, no new lesions. PR: at least 30% decrease in the SoD of TL (compared to baseline) and no new NTL. Confirmation of CR, PR is required after 4 weeks. PD: at least a 20% increase in SoDs of TLs, taking as reference smallest sum on study, and an absolute increase of at least 5 mm, or unequivocal progression of existing NTL, or new lesions. SD: neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD in at least 8 weeks from first dose of study drug. NE: either when no or only a subset of lesion measurements are made at an assessment. Number of participants with BOR are reported. In Part 2, randomization occurred between Day -8 and the same date as dosing.

Time frame: Randomization through end of study (approximately 2.6 years)

Population: The ITT population included participants who received any study drug and were analyzed according to the treatment group they were randomized to.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabBOR Per RECIST v1.1 in Part 2PR12 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabBOR Per RECIST v1.1 in Part 2PD1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabBOR Per RECIST v1.1 in Part 2SD >=8 weeks11 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabBOR Per RECIST v1.1 in Part 2NE2 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabBOR Per RECIST v1.1 in Part 2CR0 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabBOR Per RECIST v1.1 in Part 2NE1 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabBOR Per RECIST v1.1 in Part 2CR1 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabBOR Per RECIST v1.1 in Part 2PR15 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabBOR Per RECIST v1.1 in Part 2SD >=8 weeks6 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabBOR Per RECIST v1.1 in Part 2PD3 Participants
Secondary

DoR Per RECIST v1.1 in Part 2

The DoR is defined as the time from the first documentation of a confirmed response (CR or PR) until the first documentation of PD or death due to any cause, whichever occurs first. The CR is defined as disappearance of all TLs and NTLs, normalization of tumor marker level, any pathological lymph nodes (target and non-target) must have reduction in short axis \< 10 mm, and no new lesions. The PR is defined as at least a 30% decrease in the SoD of TLs (compared to baseline) and no new lesion. Confirmation of CR and PR is required by a repeat, consecutive assessment no less than 4 weeks from the date of first documentation. The PD is defined as at least a 20% increase in the SoDs of TLs, taking as reference the smallest sum on study, and an absolute increase of at least 5 mm, or unequivocal progression of existing NTL, or new lesions. The DoR was analyzed using Kaplan-Meier method. In Part 2, randomization occurred between Day -8 and the same date as dosing.

Time frame: Randomization through end of study (approximately 2.6 years)

Population: The ITT population included participants who received any study drug and were analyzed according to the treatment group they were randomized to. The DoR was assessed for only those participants who had OR.

ArmMeasureValue (MEDIAN)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabDoR Per RECIST v1.1 in Part 27.7 Months
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabDoR Per RECIST v1.1 in Part 210.3 Months
Secondary

Duration of Response (DoR) Per RECIST v1.1 in Part 1

The DoR is defined as the time from the first documentation of a confirmed response (CR or PR) until the first documentation of PD or death due to any cause, whichever occurs first. The CR is defined as disappearance of all TLs and NTLs, normalization of tumor marker level, any pathological lymph nodes (target and non-target) must have reduction in short axis \< 10 mm, and no new lesions. The PR is defined as at least a 30% decrease in the SoD of TLs (compared to baseline) and no new lesion. Confirmation of CR and PR is required by a repeat, consecutive assessment no less than 4 weeks from the date of first documentation. The PD is defined as at least a 20% increase in the SoDs of TLs, taking as reference the smallest sum on study, and an absolute increase of at least 5 mm, or unequivocal progression of existing NTL, or new lesions. The DoR was analyzed using Kaplan-Meier method.

Time frame: First dose (Day 1) through end of study (approximately 2.8 years)

Population: As-treated population included all participants who received any study drugs and were analyzed according to the treatment they actually received. The DoR was assessed for only those participants who had OR.

ArmMeasureValue (MEDIAN)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabDuration of Response (DoR) Per RECIST v1.1 in Part 16.0 Months
Secondary

Number of Participants With Abnormal Vital Signs Reported as TEAEs in Part 2

Number of participants with abnormal vital signs reported as TEAEs are reported. Abnormal vital signs are defined as any abnormal finding in the vital sign parameters (body temperature, blood pressure, and pulse rate).

Time frame: Day 1 through 90 days after the last dose of study drug (approximately 2.6 years)

Population: As-treated population included all participants who received any study drugs and were analyzed according to the treatment they actually received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Abnormal Vital Signs Reported as TEAEs in Part 2Pyrexia3 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Abnormal Vital Signs Reported as TEAEs in Part 2Temperature intolerance5 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Abnormal Vital Signs Reported as TEAEs in Part 2Hypertension4 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Abnormal Vital Signs Reported as TEAEs in Part 2Hypotension1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Abnormal Vital Signs Reported as TEAEs in Part 2Supraventricular tachycardia1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Abnormal Vital Signs Reported as TEAEs in Part 2Ventricular tachycardia1 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Abnormal Vital Signs Reported as TEAEs in Part 2Supraventricular tachycardia0 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Abnormal Vital Signs Reported as TEAEs in Part 2Pyrexia5 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Abnormal Vital Signs Reported as TEAEs in Part 2Hypotension1 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Abnormal Vital Signs Reported as TEAEs in Part 2Temperature intolerance5 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Abnormal Vital Signs Reported as TEAEs in Part 2Ventricular tachycardia0 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Abnormal Vital Signs Reported as TEAEs in Part 2Hypertension4 Participants
Secondary

Number of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2

Number of participants with at least CTCAE v5.0 2-grade shift from baseline (last assessment prior to first dose) to worst toxicity grade in clinical laboratory parameters are reported. Clinical laboratory parameter analysis included hematology, clinical chemistry, coagulation, and urinalysis.

Time frame: Baseline (Day 1) through 90 days after the last dose of study drug (approximately 2.6 years)

Population: As-treated population included all participants who received any study drugs and were analyzed according to the treatment they actually received. Here, number analyzed (n) denotes number of participants analyzed for the specified parameter.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Aspartate Aminotransferase1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Activated Partial Thromboplastin Time5 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Bilirubin1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Lymphocytes (Hypo)3 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Calcium Corrected (Hypo)0 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Albumin0 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Creatine Kinase2 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Platelets3 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Creatinine2 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Alkaline Phosphatase1 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Gamma Glutamyl Transferase5 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Lymphocytes (Hyper)0 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Potassium (Hyper)0 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Alanine Aminotransferase2 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Potassium (Hypo)0 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Leukocytes (Hypo)2 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Lipase12 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Amylase7 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Magnesium (Hypo)0 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Neutrophils7 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Sodium (Hypo)2 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Hemoglobin (Hypo)0 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Sodium (Hypo)2 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Hemoglobin (Hypo)1 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Lymphocytes (Hyper)2 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Lymphocytes (Hypo)6 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Neutrophils8 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Platelets2 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Leukocytes (Hypo)4 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Activated Partial Thromboplastin Time5 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Albumin3 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Alkaline Phosphatase1 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Alanine Aminotransferase1 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Amylase3 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Aspartate Aminotransferase0 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Bilirubin1 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Calcium Corrected (Hypo)1 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Creatine Kinase3 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Creatinine2 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Gamma Glutamyl Transferase4 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Potassium (Hyper)2 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Potassium (Hypo)2 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Lipase15 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With at Least 2-Grade Shift From Baseline to Worst Toxicity Grade in Clinical Laboratory Parameters in Part 2Magnesium (Hypo)1 Participants
Secondary

Number of Participants With Positive ADA to Bevacizumab in Part 1 (S1)

Number of participants with positive ADA to bevacizumab in Part 1 (S1) are reported.

Time frame: Pre-dose on D1 of C1 (BL), 2, 7, 13, 27, and 90 days post last dose of study drug (approximately 2.8 years)

Population: The ADA evaluable population included all participants who received at least 1 dose of any study drug, who have a non-missing baseline ADA result and at least 1 non-missing post-baseline ADA result. Here, number analyzed (n) denotes those participants who had adequate ADA sample.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Bevacizumab in Part 1 (S1)ADA positive at Cycle 7 Day 17 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Bevacizumab in Part 1 (S1)ADA positive at baseline0 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Bevacizumab in Part 1 (S1)ADA positive at Cycle 2 Day 15 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Bevacizumab in Part 1 (S1)ADA positive at Cycle 13 Day 15 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Bevacizumab in Part 1 (S1)ADA positive at Cycle 27 Day 11 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Bevacizumab in Part 1 (S1)ADA positive at 90 days post last dose4 Participants
Secondary

Number of Participants With Positive ADA to Oleclumab in Part 1 (S1) and Part 2 (E1)

Number of participants with positive ADA to oleclumab in Part 1 (S1) and Part 2 (E1) are reported.

Time frame: Part 1: Pre-dose on D1 of C1 (BL), 2, 7, 13, and 90 days post last dose of study drug (approximately 2.8 years); Part 2 (E1): Pre-dose on D1 of C1 (BL), 2, 7, 13, 27, and 90 days post last dose of study drug (approximately 2.6 years)

Population: The ADA evaluable population included all participants who received at least 1 dose of any study drug, who have a non-missing baseline ADA result and at least 1 non-missing post-baseline ADA result. Number of participants analyzed (N) denotes the number of participants evaluated for this outcome measure. Number analyzed (n) denotes those participants who had adequate ADA sample.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Oleclumab in Part 1 (S1) and Part 2 (E1)ADA positive at Cycle 13 Day 10 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Oleclumab in Part 1 (S1) and Part 2 (E1)ADA positive at Cycle 7 Day 10 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Oleclumab in Part 1 (S1) and Part 2 (E1)ADA positive at Cycle 2 Day 10 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Oleclumab in Part 1 (S1) and Part 2 (E1)ADA positive at 90 days post last dose0 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Oleclumab in Part 1 (S1) and Part 2 (E1)ADA positive at baseline0 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Oleclumab in Part 1 (S1) and Part 2 (E1)ADA positive at Cycle 27 Day 10 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Oleclumab in Part 1 (S1) and Part 2 (E1)ADA positive at 90 days post last dose0 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Oleclumab in Part 1 (S1) and Part 2 (E1)ADA positive at baseline0 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Oleclumab in Part 1 (S1) and Part 2 (E1)ADA positive at Cycle 2 Day 12 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Oleclumab in Part 1 (S1) and Part 2 (E1)ADA positive at Cycle 7 Day 10 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive ADA to Oleclumab in Part 1 (S1) and Part 2 (E1)ADA positive at Cycle 13 Day 10 Participants
Secondary

Number of Participants With Positive Anti-Drug Antibodies (ADA) to Durvalumab in Part 1 (S1) and Part 2 (E1)

Number of participants with positive ADA to durvalumab in Part 1 (S1) and Part 2 (E1) are reported.

Time frame: Part 1: Pre-dose on Day(D)1 of Cycles(C)1 (baseline [BL]), 3, 7, 13, and 90 days post last dose of study drug (approximately 2.8 years); Part 2(E1):Pre-dose on D1 of C1 (BL), 3, 7, 13, 27, and 90 days post last dose of study drug (approximately 2.6 years)

Population: The ADA evaluable population included all participants who received at least 1 dose of any study drug, who have a non-missing baseline ADA result and at least 1 non-missing post-baseline ADA result. Number of participants analyzed (N) denotes the number of participants evaluated for this outcome measure. Number analyzed (n) denotes those participants who had adequate ADA sample.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive Anti-Drug Antibodies (ADA) to Durvalumab in Part 1 (S1) and Part 2 (E1)ADA positive at Cycle 13 Day 10 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive Anti-Drug Antibodies (ADA) to Durvalumab in Part 1 (S1) and Part 2 (E1)ADA positive at Cycle 7 Day 10 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive Anti-Drug Antibodies (ADA) to Durvalumab in Part 1 (S1) and Part 2 (E1)ADA positive at Cycle 3 Day 10 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive Anti-Drug Antibodies (ADA) to Durvalumab in Part 1 (S1) and Part 2 (E1)ADA positive at 90 days post last dose0 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive Anti-Drug Antibodies (ADA) to Durvalumab in Part 1 (S1) and Part 2 (E1)ADA positive at baseline0 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive Anti-Drug Antibodies (ADA) to Durvalumab in Part 1 (S1) and Part 2 (E1)ADA positive at Cycle 27 Day 10 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive Anti-Drug Antibodies (ADA) to Durvalumab in Part 1 (S1) and Part 2 (E1)ADA positive at 90 days post last dose0 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive Anti-Drug Antibodies (ADA) to Durvalumab in Part 1 (S1) and Part 2 (E1)ADA positive at baseline2 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive Anti-Drug Antibodies (ADA) to Durvalumab in Part 1 (S1) and Part 2 (E1)ADA positive at Cycle 3 Day 11 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive Anti-Drug Antibodies (ADA) to Durvalumab in Part 1 (S1) and Part 2 (E1)ADA positive at Cycle 7 Day 10 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With Positive Anti-Drug Antibodies (ADA) to Durvalumab in Part 1 (S1) and Part 2 (E1)ADA positive at Cycle 13 Day 10 Participants
Secondary

Number of Participants With TEAEs and TESAEs in Part 2

An AE is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. A SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. The TEAEs are defined as events present at baseline that worsened in intensity after administration of study drug or events absent at baseline that emerged after administration of study drug.

Time frame: Day 1 through 90 days after the last dose of study drug (approximately 2.6 years)

Population: As-treated population included all participants who received any study drugs and were analyzed according to the treatment they actually received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With TEAEs and TESAEs in Part 2Any TEAE26 Participants
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With TEAEs and TESAEs in Part 2Any TESAE7 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With TEAEs and TESAEs in Part 2Any TEAE26 Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabNumber of Participants With TEAEs and TESAEs in Part 2Any TESAE12 Participants
Secondary

OS Per RECIST v1.1 in Part 2

The OS is defined as the time from randomization until death due to any cause. The overall survival was analyzed using the Kaplan-Meier method based on application of RECIST v1.1 to investigator assessments. In Part 2, randomization occurred between Day -8 and the same date as dosing.

Time frame: Randomization through end of study (approximately 2.6 years)

Population: The ITT population included participants who received any study drug and were analyzed according to the treatment group they were randomized to.

ArmMeasureValue (MEDIAN)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabOS Per RECIST v1.1 in Part 2NA Months
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabOS Per RECIST v1.1 in Part 222.4 Months
Secondary

Overall Survival (OS) Per RECIST v1.1 in Part 1

The OS is defined as the time from first dose until death due to any cause. The overall survival was analyzed using the Kaplan-Meier method based on application of RECIST v1.1 to investigator assessments.

Time frame: First dose (Day 1) through end of study (approximately 2.8 years)

Population: As-treated population included all participants who received any study drugs and were analyzed according to the treatment they actually received.

ArmMeasureValue (MEDIAN)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabOverall Survival (OS) Per RECIST v1.1 in Part 130.1 Months
Secondary

Percentage of Participants With DC Per RECIST v1.1 in Part 2

The DC is defined as BOR of confirmed CR, confirmed PR, or SD (maintained for ≥ 16 weeks) per RECIST v1.1. The CR is defined as disappearance of all TLs and NTLs, normalization of tumor marker level, any pathological lymph nodes (target and non-target) must have reduction in short axis \< 10 mm, and no new lesions. The PR is defined as at least a 30% decrease in the SoD of TLs (compared to baseline) and no new lesion. Confirmation of CR and PR is required by a repeat, consecutive assessment no less than 4 weeks from the date of first documentation. The SD is defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD. Participants with SD will be included in the DC if they maintain SD for \>= 16 weeks from start of treatment. In Part 2, randomization occurred between Day -8 and the same date as dosing.

Time frame: Randomization through end of study (approximately 2.6 years)

Population: The ITT population included participants who received any study drug and were analyzed according to the treatment group they were randomized to.

ArmMeasureValue (NUMBER)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabPercentage of Participants With DC Per RECIST v1.1 in Part 288.5 Percentage of Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabPercentage of Participants With DC Per RECIST v1.1 in Part 284.6 Percentage of Participants
Secondary

Percentage of Participants With Disease Control (DC) Per RECIST v1.1 in Part 1

The DC is defined as BOR of confirmed CR, confirmed PR, or stable disease (SD; maintained for ≥ 16 weeks) per RECIST v1.1. The CR is defined as disappearance of all TLs and NTLs, normalization of tumor marker level, any pathological lymph nodes (target and non-target) must have reduction in short axis \< 10 mm, and no new lesions. The PR is defined as at least a 30% decrease in the SoD of TLs (compared to baseline) and no new lesion. Confirmation of CR and PR is required by a repeat, consecutive assessment no less than 4 weeks from the date of first documentation. The SD is defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD. Participants with SD will be included in the DC if they maintain SD for \>= 16 weeks from start of treatment.

Time frame: First dose (Day 1) through end of study (approximately 2.8 years)

Population: As-treated population included all participants who received any study drugs and were analyzed according to the treatment they actually received.

ArmMeasureValue (NUMBER)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabPercentage of Participants With Disease Control (DC) Per RECIST v1.1 in Part 1100 Percentage of Participants
Secondary

Percentage of Participants With OR Per RECIST v1.1 in Part 1

The OR is defined as BOR of confirmed CR or confirmed PR based on RECIST v1.1 criteria. The CR is defined as disappearance of all TLs and NTLs, normalization of tumor marker level, any pathological lymph nodes (target and non-target) must have reduction in short axis \< 10 mm, and no new lesions. The PR is defined as at least a 30% decrease in the SoD of TLs (compared to baseline) and no new lesions. Confirmation of CR and PR is required by a repeat, consecutive assessment no less than 4 weeks from the date of first documentation.

Time frame: First dose (Day 1) through end of study (approximately 2.8 years)

Population: As-treated population included all participants who received any study drugs and were analyzed according to the treatment they actually received.

ArmMeasureValue (NUMBER)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabPercentage of Participants With OR Per RECIST v1.1 in Part 171.4 Percentage of Participants
Secondary

Percentage of Participants With PFS at 12 Months (PFS-12) Per RECIST v1.1 in Part 1

The PFS is defined as the time from assignment until the first documentation of PD or death due to any cause, whichever occurs first, regardless of whether the participant received subsequent anticancer therapy prior to progression. The PD is defined as at least a 20% increase in the SoDs of TLs, taking as reference the smallest sum on study, and an absolute increase of at least 5 mm, or unequivocal progression of existing NTL, or new lesions. The PFS was analyzed using Kaplan-Meier method based on application of RECIST v1.1 to investigator assessments. The percentage of participants progression free and alive at 12 months (PFS-12) are reported. Assignment occurred between Day -3 and -1.

Time frame: Assignment through 12 months

Population: As-treated population included all participants who received any study drugs and were analyzed according to the treatment they actually received.

ArmMeasureValue (NUMBER)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabPercentage of Participants With PFS at 12 Months (PFS-12) Per RECIST v1.1 in Part 128.6 Percentage of Participants
Secondary

Percentage of Participants With PFS at 12 Months (PFS-12) Per RECIST v1.1 in Part 2

The PFS is defined as the time from randomization until the first documentation of PD or death due to any cause, whichever occurs first, regardless of whether the participant received subsequent anticancer therapy prior to progression. The PD is defined as at least a 20% increase in the SoDs of TLs, taking as reference the smallest sum on study, and an absolute increase of at least 5 mm, or unequivocal progression of existing NTL, or new lesions. The PFS was analyzed using Kaplan-Meier method based on application of RECIST v1.1 to investigator assessments. The percentage of participants progression free and alive at 12 months (PFS-12) are reported. In Part 2, randomization occurred between Day -8 and the same date as dosing.

Time frame: Randomization through 12 months

Population: The ITT population included participants who received any study drug and were analyzed according to the treatment group they were randomized to.

ArmMeasureValue (NUMBER)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabPercentage of Participants With PFS at 12 Months (PFS-12) Per RECIST v1.1 in Part 238.6 Percentage of Participants
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabPercentage of Participants With PFS at 12 Months (PFS-12) Per RECIST v1.1 in Part 236.1 Percentage of Participants
Secondary

PFS Per RECIST v1.1 in Part 2

The PFS is defined as the time from randomization until the first documentation of PD or death due to any cause, whichever occurs first, regardless of whether the participant received subsequent anticancer therapy prior to progression. The PD is defined as at least a 20% increase in the SoDs of TLs, taking as reference the smallest sum on study, and an absolute increase of at least 5 mm, or unequivocal progression of existing NTL, or new lesions. The PFS was analyzed using the Kaplan-Meier method based on application of RECIST v1.1 to investigator assessments. In Part 2, randomization occurred between Day -8 and the same date as dosing.

Time frame: Randomization through end of study (approximately 2.6 years)

Population: The ITT population included participants who received any study drug and were analyzed according to the treatment group they were randomized to.

ArmMeasureValue (MEDIAN)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabPFS Per RECIST v1.1 in Part 211.1 Months
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabPFS Per RECIST v1.1 in Part 210.9 Months
Secondary

Progression-Free Survival (PFS) Per RECIST v1.1 in Part 1

The PFS is defined as the time from assignment until the first documentation of PD or death due to any cause, whichever occurs first, regardless of whether the participant received subsequent anticancer therapy prior to progression. The PD is defined as at least a 20% increase in the SoDs of TLs, taking as reference the smallest sum on study, and an absolute increase of at least 5 mm, or unequivocal progression of existing NTL, or new lesions. The PFS was analyzed using the Kaplan-Meier method based on application of RECIST v1.1 to investigator assessments. Assignment occurred between Day -3 and -1.

Time frame: Assignment through end of study (approximately 2.8 years)

Population: As-treated population included all participants who received any study drugs and were analyzed according to the treatment they actually received.

ArmMeasureValue (MEDIAN)
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabProgression-Free Survival (PFS) Per RECIST v1.1 in Part 19.5 Months
Secondary

Serum Concentrations of Bevacizumab in Part 1 (S1)

Serum concentrations of bevacizumab collected over time in Part 1 (S1) are reported. The LLOQ for bevacizumab was considered to be 500 ng/mL.

Time frame: Pre-dose on Day 1 of Cycle 1, 2, 7, 13, and 27

Population: The PK evaluable population included participants who received at least 1 dose of any study drug with at least 1 reportable PK concentration. Here, number analyzed denotes those participants who had adequate serum samples.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Bevacizumab in Part 1 (S1)Cycle 1 Day 1NA ng/mL
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Bevacizumab in Part 1 (S1)Cycle 2 Day 136090 ng/mLGeometric Coefficient of Variation 16.55
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Bevacizumab in Part 1 (S1)Cycle 7 Day 173350 ng/mLGeometric Coefficient of Variation 39.94
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Bevacizumab in Part 1 (S1)Cycle 13 Day 170370 ng/mLGeometric Coefficient of Variation 30.52
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Bevacizumab in Part 1 (S1)Cycle 27 Day 1NA ng/mL
Secondary

Serum Concentrations of Durvalumab in Part 1 (S1) and Part 2 (E1)

Serum concentrations of durvalumab collected over time in Part 1 (S1) and Part 2 (E1) are reported. The lower limit of quantification (LLOQ) for durvalumab was considered to be 50 ng/mL.

Time frame: Part 1: Pre-dose on Day 1 of Cycle 1, 3, 7, 13; Part 2 (E1): Pre-dose on Day 1 of Cycle 1, 3, 7, 13, and 27

Population: Pharmacokinetic (PK) evaluable population included participants who received at least 1 dose of any study drug with at least 1 reportable PK concentration. Here, number of participants analyzed denotes those participants who were analyzed for this outcome measure. Number analyzed (n) denotes those participants who had adequate serum samples.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Durvalumab in Part 1 (S1) and Part 2 (E1)Cycle 1 Day 1NA ng/mL
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Durvalumab in Part 1 (S1) and Part 2 (E1)Cycle 3 Day 167980 ng/mLGeometric Coefficient of Variation 20.31
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Durvalumab in Part 1 (S1) and Part 2 (E1)Cycle 7 Day 1112500 ng/mLGeometric Coefficient of Variation 28.63
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Durvalumab in Part 1 (S1) and Part 2 (E1)Cycle 13 Day 1101500 ng/mLGeometric Coefficient of Variation 30.22
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Durvalumab in Part 1 (S1) and Part 2 (E1)Cycle 13 Day 1147000 ng/mLGeometric Coefficient of Variation 30.57
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Durvalumab in Part 1 (S1) and Part 2 (E1)Cycle 7 Day 197610 ng/mLGeometric Coefficient of Variation 46.56
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Durvalumab in Part 1 (S1) and Part 2 (E1)Cycle 1 Day 1NA ng/mL
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Durvalumab in Part 1 (S1) and Part 2 (E1)Cycle 27 Day 1120700 ng/mLGeometric Coefficient of Variation 29.83
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Durvalumab in Part 1 (S1) and Part 2 (E1)Cycle 3 Day 148600 ng/mLGeometric Coefficient of Variation 39.67
Secondary

Serum Concentrations of Oleclumab in Part 1 (S1) and Part 2 (E1)

Serum concentrations of oleclumab collected over time in Part 1 (S1) and Part 2 (E1) are reported. The LLOQ for oleclumab was considered to be 1 µg/mL.

Time frame: Part 1: Pre-dose on Day 1 of Cycle 1, 2, 7, and 13; Part 2 (E1): Pre-dose on Day 1 of Cycle 1, 2, 7, 13, and 27

Population: The PK evaluable population included participants who received at least 1 dose of any study drug with at least 1 reportable PK concentration. Here, number of participants analyzed denotes those participants who were analyzed for this outcome measure. Number analyzed (n) denotes those participants who had adequate serum samples.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Oleclumab in Part 1 (S1) and Part 2 (E1)Cycle 1 Day 1NA µg/mL
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Oleclumab in Part 1 (S1) and Part 2 (E1)Cycle 2 Day 1111.2 µg/mLGeometric Coefficient of Variation 25.38
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Oleclumab in Part 1 (S1) and Part 2 (E1)Cycle 7 Day 1186.5 µg/mLGeometric Coefficient of Variation 53.45
Part 1 (S1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Oleclumab in Part 1 (S1) and Part 2 (E1)Cycle 13 Day 1146.7 µg/mLGeometric Coefficient of Variation 24.43
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Oleclumab in Part 1 (S1) and Part 2 (E1)Cycle 13 Day 1170.1 µg/mLGeometric Coefficient of Variation 35.77
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Oleclumab in Part 1 (S1) and Part 2 (E1)Cycle 7 Day 1159.8 µg/mLGeometric Coefficient of Variation 81.62
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Oleclumab in Part 1 (S1) and Part 2 (E1)Cycle 1 Day 1NA µg/mL
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Oleclumab in Part 1 (S1) and Part 2 (E1)Cycle 27 Day 1107.9 µg/mLGeometric Coefficient of Variation 30.42
Part 2 (E1): FOLFOX + Bevacizumab + Durvalumab + OleclumabSerum Concentrations of Oleclumab in Part 1 (S1) and Part 2 (E1)Cycle 2 Day 169.81 µg/mLGeometric Coefficient of Variation 199.1

Source: ClinicalTrials.gov · Data processed: Aug 12, 2026