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Study of Icrucumab (IMC-18F1) or Ramucirumab Drug Product (DP) in Combination With Capecitabine or Capecitabine on Previously Treated Breast Cancer Patients

An Open-Label, Multicenter, Randomized Phase 2 Study Evaluating the Safety and Efficacy of Ramucirumab (IMC-1121B) Drug Product or Icrucumab (IMC-18F1) in Combination With Capecitabine or Capecitabine Monotherapy, in Unresectable, Locally Advanced or Metastatic Breast Cancer Patients Previously Treated With Anthracycline and Taxane Therapy

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01234402
Enrollment
153
Registered
2010-11-04
Start date
2011-03-31
Completion date
2017-07-31
Last updated
2019-08-14

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

Conditions

Breast Cancer

Keywords

Breast Cancer

Brief summary

An open-label, multicenter, randomized, Phase 2 trial in which participant with unresectable, locally advanced or metastatic breast cancer who have been previously treated with anthracycline and taxane therapy receive ramucirumab DP or Icrucumab (IMC-18F1) administered on an every-21-day cycle (in combination with oral capecitabine therapy; capecitabine is administered twice a day on Days 1-14 of each cycle). Approximately 150 participants will be randomized in a 1:1:1 ratio to either ramucirumab DP or Icrucumab (IMC-18F1) in combination with capecitabine (Arm A and Arm B, respectively) or capecitabine monotherapy (Arm C). Randomization will be stratified by triple-negative receptor status (estrogen receptor-negative, progesterone receptor-negative, and human epidermal growth factor receptor-2 \[HER2/neu\]-negative) (yes/no) and receipt of prior antiangiogenic therapy. Treatment with the study medication(s) will continue until disease progression, the development of unacceptable toxicity, noncompliance or withdrawal of consent by the participant, or investigator decision. Capecitabine dose reductions in the setting of significant myelosuppression, hand-and-foot syndrome, or diarrhea will be required.

Interventions

BIOLOGICALRamucirumab DP

10 mg/kg I.V. Day 1 of every-21-day cycle

BIOLOGICALIMC-18F1

12 mg/kg I.V. Days 1 and 8 of every-21-day cycle

DRUGCapecitabine

1000 mg/m\^2 orally Twice a day for 14 days

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* The participant has histologically or cytologically confirmed breast cancer which at the time of study entry is either Stage III disease not amenable to curative therapy or Stage IV disease * Has measurable or nonmeasurable disease * Has an Eastern Cooperative Oncology Group (ECOG) performance status of 0-1 * Has received prior anthracycline therapy * Has received prior taxane therapy * Participants with human epidermal growth factor receptor-2 (HER2) positive disease must have progressed on or following trastuzumab * Participants with hormone receptor-positive disease must have progressed on or following hormone therapy * Has received ≤ 3 prior chemotherapy regimens in any setting (a regimen is defined as any agent\[s\] that has been administered for more than 1 cycle; sequential neoadjuvant/adjuvant treatment is considered 1 regimen) * Has completed any prior radiotherapy ≥ 4 weeks prior to randomization * Has completed any prior hormonal therapy ≥ 2 weeks prior to randomization * Has adverse events (AEs) that have resolved to Grade ≤ 1 by the National Cancer Institute Common Terminology Criteria for Adverse Events, Version 4.0 (NCI-CTCAE v 4.0) from all clinically significant toxic effects of prior chemotherapy, surgery, radiotherapy,or hormonal therapy * Has adequate hematologic, coagulation, hepatic and renal function * Does not have: * cirrhosis at a level of Child-Pugh B (or worse) or * cirrhosis (any degree) and a history of hepatic encephalopathy or ascites resulting from cirrhosis and requiring ongoing treatment with diuretics and/or paracentesis * Has urinary protein is ≤ 1+ on dipstick or routine urinalysis; if urine protein ≥ 2+, a 24-hour urine collection must demonstrate \< 1000 mg of protein in 24 hours to allow participation in the study * Agrees to use adequate contraception during the study period and for 12 weeks after the last dose of study medication

Exclusion criteria

* Has a concurrent active malignancy other than adequately treated nonmelanomatous skin cancer, curatively treated cervical carcinoma in situ, or other noninvasive carcinoma or in situ neoplasm. A participant with previous history of malignancy is eligible, provided that there has been a disease-free interval for \> 3 years * Has a known sensitivity to capecitabine, any of its components, or other drugs formulated with polysorbate 80 * Has a known sensitivity to 5-fluorouracil (5-FU) * Has a known dihydropyrimidine dehydrogenase deficiency * Has received prior capecitabine treatment for advanced breast cancer * Has received investigational therapy within 2 weeks prior to randomization * Has received bevacizumab within 4 weeks prior to randomization * Has received more than 1 prior antiangiogenic agent for breast cancer * Has a known sensitivity to agents of similar biologic composition as ramucirumab DP or Icrucumab (IMC-18F1), or other agents that specifically target vascular endothelial growth factor (VEGF) * Has an acute/subacute bowel obstruction or history of chronic diarrhea requiring ongoing medical intervention * Has a history of uncontrolled hereditary or acquired bleeding or thrombotic disorders * Has experienced a Grade ≥ 3 bleeding event within 3 months prior to randomization * Is receiving prophylactic or therapeutic anticoagulation with warfarin or any other oral anticoagulant * Has an uncontrolled intercurrent illness, including, but not limited to uncontrolled hypertension, symptomatic anemia, symptomatic congestive heart failure, unstable angina pectoris, symptomatic or poorly controlled cardiac arrhythmia, psychiatric illness/social situations, or any other serious uncontrolled medical disorder in the opinion of the investigator * Has experienced any arterial thrombotic or thromboembolic events, including, but not limited to myocardial infarction, transient ischemic attack, or cerebrovascular accident within 6 months prior to randomization * Has brain metastases, uncontrolled spinal cord compression, or leptomeningeal disease * Has an ongoing or active infection requiring parenteral antibiotic, antifungal, or antiviral therapy * Has received a prior allogeneic organ or tissue transplantation * Has undergone major surgery within 4 weeks prior to randomization, or subcutaneous venous access device placement within 7 days prior to randomization * Has had a serious nonhealing wound, ulcer, or bone fracture within 4 weeks prior to randomization * Has known HIV or AIDS infection * Has an elective or planned major surgery to be performed during the course of the trial * Participant is pregnant or lactating

Design outcomes

Primary

MeasureTime frameDescription
Progression-Free Survival (PFS)From Date of Randomization until Disease Progression or Death Due to Any Cause (Up To 97 weeks)PFS is defined as the time from the date of randomization until the date of objectively determined progression as defined by Response Evaluation Criteria in Solid Tumors (RECIST v1.1) or death from any cause, whichever is first. Disease progression is defined as ≥20% increase in the sum of diameters of target lesions, taking as reference smallest sum on study (included baseline sum if that was the smallest on study); sum must have demonstrated an absolute increase of ≥5 millimeter (mm) and the appearance of ≥1 new lesions was progression. Participants who did not progress, were lost to follow-up, or had missed 2 or more scheduled tumor assessments were censored at the day of their last adequate tumor assessment.

Secondary

MeasureTime frameDescription
Percentage of Participants With Objective Response Rate (ORR)From Date of Randomization until Disease Progression/Recurrence (Up to 97 weeks)The ORR is the number of all participants with Partial Response (PR) or Complete Response (CR) according to RECIST v1.1 from the start of the treatment until disease progression/recurrence. CR was defined as the disappearance of all non-nodal target lesions, with the short axes of any target lymph nodes reduced to \<10 mm. PR was defined as ≥30% decrease in the sum of the diameters of target lesions (including the short axes of any target lymph nodes), taking as reference the baseline sum diameter. Disease progression is defined as ≥20% increase in the sum of diameters of target lesions, taking as reference smallest sum on study (included baseline sum if that was the smallest on study); sum must have demonstrated an absolute increase of ≥5 mm and the appearance of ≥1 new lesions was progression.
Duration of ResponseFrom Date of CR, PR until Disease Progression or Death Due to Any Cause (Up To 97 weeks)Duration of response is measured from the time measurement criteria are first met for CR/PR (whichever is first recorded) until the first date that the criteria for progressive disease (PD) is met (taking as a reference for PD that smallest measurement recorded since the treatment started), or death, is objectively documented.CR was defined as the disappearance of all non-nodal target lesions, with the short axes of any target lymph nodes reduced to \<10 mm. PR was defined as ≥30% decrease in the sum of the diameters of target lesions (including the short axes of any target lymph nodes), taking as reference the baseline sum diameter.PD defined as ≥20% increase in the sum of the diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). Sum must also have demonstrated an absolute increase of ≥5 mm, or the appearance of 1 or more new lesions was considered progression.
Number of Participants With Adverse Events (AEs)Up To 160 WeeksAdverse event (AE) will be regarded as treatment-emergent if onset date occurs any time on or after the administration of the first dose of study treatment up to 30 days after the last dose of study treatment (or up to any time if related to study treatment); or it occurs prior to first dose date and worsens while on therapy or up to 30 days after the last dose of study treatment (or up to any time if related to study treatment). A summary of other nonserious AEs, and all SAE's, regardless of causality, is located in the Reported Adverse Events section.
Number of Participants With Serious Adverse Events (SAEs)Up To 160 WeeksSAE was defined as any untoward medical occurrence that at any dose: Resulted in death; Was life-threatening; Required inpatient hospitalization or caused prolongation of existing hospitalization; Resulted in persistent or significant disability/incapacity; Was a congenital anomaly/birth defect; Required intervention to prevent permanent impairment/damage; Was an important medical event (defined as a medical event that may not have been immediately life-threatening or resulted in death or hospitalization but, based upon appropriate medical and scientific judgment, may jeopardize the participant or may require intervention to prevent one of the other serious outcomes listed in the definition above). A summary of other nonserious AEs, and all SAE's, regardless of causality, is located in the Reported Adverse Events section.
Maximum Concentration (Cmax) Ramucirumab Drug Product (DP) or IcrucumabCycle 1: Pre-infusion, 1h, 48h, 72h, 168, 336h post infusion
Overall Survival (OS)From Date of Randomization until Death Due to Any Cause (Up To 160 weeks)Overall survival is defined as the time from the date of randomization to the date of death from any cause. If the participant is alive at the end of the follow-up period or is lost to follow-up, OS will be censored on the last date the participant is known to be alive.
Area Under the Concentration Versus Time Curve From Time Zero to Infinity of Ramucirumab or IcrucumabCycle 1: Pre-infusion, 1h, 48h, 72h, 168, 336h post infusionArea Under the Concentration (AUC) Versus Time Curve From Time Zero to Infinity of Ramucirumab and Icrucumab.
Terminal Half-life (t½) of Ramucirumab or IcrucumabCycle 1: Pre-infusion, 1h, 48h, 72h, 168, 336h post infusionTerminal half-life (t½) of Ramucirumab and Icrucumab.
Clearance (Cl) of Ramucirumab or IcrucumabCycle 1: Pre-infusion, 1h, 48h, 72h, 168, 336h post infusionClearance (Cl) of Ramucirumab and Icrucumab.
Volume of Distribution at Steady State (Vss) of Ramucirumab or IcrucumabCycle 1: Pre-infusion, 1h, 48h, 72h, 168, 336h post infusionVolume of Distribution at Steady State (Vss) of Ramucirumab and Icrucumab.
Number of Participants With Anti-Ramucirumab and Anti-Icrucumab AntibodiesCycle 1: Pre-infusion, 1h, 48h, 72h, 168, 336h post infusion
Minimum Concentration (Cmin) Ramucirumab Drug Product (DP) or IcrucumabCycle 2,4,6,8,0,12,14,16,18,22: Pre-infusion, 1h, 48h, 72h, 168, 336h post infusionMinimum Concentration (Cmin) Ramucirumab Drug Product (DP) or Icrucumab.

Countries

Canada, United States

Participant flow

Recruitment details

Participants in Capecitabine arm were allowed to cross-over to ramucirumab or icrucumab in combination with capecitabine, after radiographic disease progression while on capecitabine.

Pre-assignment details

Completers are those participants who died or alive and on study at conclusion but off treatment.

Participants by arm

ArmCount
Ramucirumab + Capecitabine
Participants received 10 mg/kg Ramucirumab intravenously on day 1 of 21 days cycle along with 1000 mg/m\^2 of Capecitabine twice daily orally on days 1 to 14 of 21 days cycle.
52
Icrucumab + Capecitabine
Participants received 12 mg/kg Icrucumab intravenously on day 1 and day 8 of 21 day cycle along with 1000 mg/m\^2 of Capecitabine twice daily orally on days 1 to 14 of 21 days cycle.
49
Capecitabine
Participants received 1000 mg/m\^2 of Capecitabine twice daily orally on days 1 to 14 of 21 days cycle. After radiographic diseases progression while on Capecitabine, participants were crossed-over to either Ramucirumab or Icrucumab; Participants crossed-over to Ramucirumab + Capecitabine had received 10 mg/kg Ramucirumab intravenously on day 1 of 21 days cycle along with 1000 mg/m\^2 of Capecitabine twice daily orally on days 1 to 14 of 21 days cycle. Participants crossed-over to Icrucumab + Capecitabine received 12 mg/kg Icrucumab intravenously on day 1 and day 8 of 21 day cycle along with 1000 mg/m\^2 of Capecitabine twice daily orally on days 1 to 14 of 21 days cycle.
49
Total150

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyLost to Follow-up013
Overall StudyNever treated: Death001
Overall StudyNever treated: Insurance Denied Xeloda010
Overall StudyNever treated: Withdrawal By Subject010
Overall StudyWithdrawal by Subject134

Baseline characteristics

CharacteristicRamucirumab + CapecitabineTotalCapecitabineIcrucumab + Capecitabine
Age, Continuous55.2 years
STANDARD_DEVIATION 10.75
53.3 years
STANDARD_DEVIATION 11.19
53.5 years
STANDARD_DEVIATION 11.12
51.1 years
STANDARD_DEVIATION 11.54
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants6 Participants1 Participants3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
49 Participants138 Participants45 Participants44 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants6 Participants3 Participants2 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
0 Participants1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native,White
0 Participants1 Participants1 Participants0 Participants
Race/Ethnicity, Customized
Asian
2 Participants4 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Black or African American
13 Participants25 Participants4 Participants8 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 Participants1 Participants1 Participants0 Participants
Race/Ethnicity, Customized
Other
1 Participants5 Participants2 Participants2 Participants
Race/Ethnicity, Customized
White
36 Participants112 Participants39 Participants37 Participants
Race/Ethnicity, Customized
White, Other
0 Participants1 Participants1 Participants0 Participants
Sex: Female, Male
Female
52 Participants149 Participants49 Participants48 Participants
Sex: Female, Male
Male
0 Participants1 Participants0 Participants1 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —
other
Total, other adverse events
51 / 5249 / 4948 / 4929 / 291 / 1
serious
Total, serious adverse events
20 / 5225 / 496 / 495 / 290 / 1

Outcome results

Primary

Progression-Free Survival (PFS)

PFS is defined as the time from the date of randomization until the date of objectively determined progression as defined by Response Evaluation Criteria in Solid Tumors (RECIST v1.1) or death from any cause, whichever is first. Disease progression is defined as ≥20% increase in the sum of diameters of target lesions, taking as reference smallest sum on study (included baseline sum if that was the smallest on study); sum must have demonstrated an absolute increase of ≥5 millimeter (mm) and the appearance of ≥1 new lesions was progression. Participants who did not progress, were lost to follow-up, or had missed 2 or more scheduled tumor assessments were censored at the day of their last adequate tumor assessment.

Time frame: From Date of Randomization until Disease Progression or Death Due to Any Cause (Up To 97 weeks)

Population: All randomized participants who received at least one dose of study drug; Censored participants: Ramucirumab + Capecitabine = 12; Icrucumab + Capecitabine = 11; Capecitabine = 7

ArmMeasureValue (MEDIAN)
Ramucirumab + CapecitabineProgression-Free Survival (PFS)22.1 Weeks
Icrucumab + CapecitabineProgression-Free Survival (PFS)7.3 Weeks
CapecitabineProgression-Free Survival (PFS)19.0 Weeks
Comparison: Kaplan-Meier methodology estimated median PFSp-value: 0.131595% CI: [0.429, 1.114]Log Rank
Comparison: Kaplan-Meier methodology estimated median PFSp-value: 0.085195% CI: [0.938, 2.335]Log Rank
Secondary

Area Under the Concentration Versus Time Curve From Time Zero to Infinity of Ramucirumab or Icrucumab

Area Under the Concentration (AUC) Versus Time Curve From Time Zero to Infinity of Ramucirumab and Icrucumab.

Time frame: Cycle 1: Pre-infusion, 1h, 48h, 72h, 168, 336h post infusion

Population: For ramucirumab, all randomized participants who received at least one dose of study drug \& had evaluable pharmacokinetic (PK) samples.~For icrucumab, zero participants analyzed as reliable PK parameters could not be estimated using non-compartmental PK analysis due to insufficient number of samples.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Ramucirumab + CapecitabineArea Under the Concentration Versus Time Curve From Time Zero to Infinity of Ramucirumab or Icrucumab54400 microgram*hour/mLGeometric Coefficient of Variation 42
Secondary

Clearance (Cl) of Ramucirumab or Icrucumab

Clearance (Cl) of Ramucirumab and Icrucumab.

Time frame: Cycle 1: Pre-infusion, 1h, 48h, 72h, 168, 336h post infusion

Population: For ramucirumab, all randomized participants who received at least one dose of study drug \& had evaluable pharmacokinetic (PK) samples.~For icrucumab, zero participants analyzed as reliable PK parameters could not be estimated using non-compartmental PK analysis due to insufficient number of samples.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Ramucirumab + CapecitabineClearance (Cl) of Ramucirumab or Icrucumab0.0141 Liters per hourGeometric Coefficient of Variation 34
Secondary

Duration of Response

Duration of response is measured from the time measurement criteria are first met for CR/PR (whichever is first recorded) until the first date that the criteria for progressive disease (PD) is met (taking as a reference for PD that smallest measurement recorded since the treatment started), or death, is objectively documented.CR was defined as the disappearance of all non-nodal target lesions, with the short axes of any target lymph nodes reduced to \<10 mm. PR was defined as ≥30% decrease in the sum of the diameters of target lesions (including the short axes of any target lymph nodes), taking as reference the baseline sum diameter.PD defined as ≥20% increase in the sum of the diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). Sum must also have demonstrated an absolute increase of ≥5 mm, or the appearance of 1 or more new lesions was considered progression.

Time frame: From Date of CR, PR until Disease Progression or Death Due to Any Cause (Up To 97 weeks)

Population: All randomized participants who received at least one dose of study drug and had CR/PR.

ArmMeasureValue (MEDIAN)
Ramucirumab + CapecitabineDuration of Response43.1 weeks
Icrucumab + CapecitabineDuration of Response20.1 weeks
CapecitabineDuration of Response17.1 weeks
Secondary

Maximum Concentration (Cmax) Ramucirumab Drug Product (DP) or Icrucumab

Time frame: Cycle 1: Pre-infusion, 1h, 48h, 72h, 168, 336h post infusion

Population: For ramucirumab, all randomized participants who received at least one dose of study drug \& had evaluable pharmacokinetic (PK) samples.~For icrucumab, zero participants analyzed as reliable PK parameters could not be estimated using non-compartmental PK analysis due to insufficient number of samples.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Ramucirumab + CapecitabineMaximum Concentration (Cmax) Ramucirumab Drug Product (DP) or Icrucumab308 Microgram per milliliterGeometric Coefficient of Variation 25
Secondary

Minimum Concentration (Cmin) Ramucirumab Drug Product (DP) or Icrucumab

Minimum Concentration (Cmin) Ramucirumab Drug Product (DP) or Icrucumab.

Time frame: Cycle 2,4,6,8,0,12,14,16,18,22: Pre-infusion, 1h, 48h, 72h, 168, 336h post infusion

Population: For ramucirumab, all randomized participants who received at least one dose of study drug \& had evaluable pharmacokinetic (PK) samples.~For icrucumab, zero participants analyzed as reliable PK parameters could not be estimated using non-compartmental PK analysis due to insufficient number of samples.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Ramucirumab + CapecitabineMinimum Concentration (Cmin) Ramucirumab Drug Product (DP) or IcrucumabCycle 223.7 Micro gram per milliliterGeometric Coefficient of Variation 58
Ramucirumab + CapecitabineMinimum Concentration (Cmin) Ramucirumab Drug Product (DP) or IcrucumabCycle 480.6 Micro gram per milliliterGeometric Coefficient of Variation 67
Ramucirumab + CapecitabineMinimum Concentration (Cmin) Ramucirumab Drug Product (DP) or IcrucumabCycle 644.7 Micro gram per milliliterGeometric Coefficient of Variation 83
Ramucirumab + CapecitabineMinimum Concentration (Cmin) Ramucirumab Drug Product (DP) or IcrucumabCycle 865.8 Micro gram per milliliterGeometric Coefficient of Variation 43
Ramucirumab + CapecitabineMinimum Concentration (Cmin) Ramucirumab Drug Product (DP) or IcrucumabCycle 1066.8 Micro gram per milliliterGeometric Coefficient of Variation 37
Ramucirumab + CapecitabineMinimum Concentration (Cmin) Ramucirumab Drug Product (DP) or IcrucumabCycle 1274.3 Micro gram per milliliterGeometric Coefficient of Variation 38
Ramucirumab + CapecitabineMinimum Concentration (Cmin) Ramucirumab Drug Product (DP) or IcrucumabCycle 1462.5 Micro gram per milliliter
Ramucirumab + CapecitabineMinimum Concentration (Cmin) Ramucirumab Drug Product (DP) or IcrucumabCycle 1650.5 Micro gram per milliliter
Ramucirumab + CapecitabineMinimum Concentration (Cmin) Ramucirumab Drug Product (DP) or IcrucumabCycle 1850.5 Micro gram per milliliter
Ramucirumab + CapecitabineMinimum Concentration (Cmin) Ramucirumab Drug Product (DP) or IcrucumabCycle 2255.0 Micro gram per milliliter
Secondary

Number of Participants With Adverse Events (AEs)

Adverse event (AE) will be regarded as treatment-emergent if onset date occurs any time on or after the administration of the first dose of study treatment up to 30 days after the last dose of study treatment (or up to any time if related to study treatment); or it occurs prior to first dose date and worsens while on therapy or up to 30 days after the last dose of study treatment (or up to any time if related to study treatment). A summary of other nonserious AEs, and all SAE's, regardless of causality, is located in the Reported Adverse Events section.

Time frame: Up To 160 Weeks

Population: All randomized participants who received at least one dose of study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ramucirumab + CapecitabineNumber of Participants With Adverse Events (AEs)52 Participants
Icrucumab + CapecitabineNumber of Participants With Adverse Events (AEs)49 Participants
CapecitabineNumber of Participants With Adverse Events (AEs)48 Participants
Secondary

Number of Participants With Anti-Ramucirumab and Anti-Icrucumab Antibodies

Time frame: Cycle 1: Pre-infusion, 1h, 48h, 72h, 168, 336h post infusion

Population: For ramucirumab, Aall randomized participants who received at least one dose of study drug and had evaluable serum samples for antibody assessment.~For icrucumab, zero participants analyzed as antibody assessment data was not collected for Icrucumab.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Ramucirumab + CapecitabineNumber of Participants With Anti-Ramucirumab and Anti-Icrucumab AntibodiesNeutralizing antibody0 Participants
Ramucirumab + CapecitabineNumber of Participants With Anti-Ramucirumab and Anti-Icrucumab AntibodiesTreatment emergent antibody0 Participants
Secondary

Number of Participants With Serious Adverse Events (SAEs)

SAE was defined as any untoward medical occurrence that at any dose: Resulted in death; Was life-threatening; Required inpatient hospitalization or caused prolongation of existing hospitalization; Resulted in persistent or significant disability/incapacity; Was a congenital anomaly/birth defect; Required intervention to prevent permanent impairment/damage; Was an important medical event (defined as a medical event that may not have been immediately life-threatening or resulted in death or hospitalization but, based upon appropriate medical and scientific judgment, may jeopardize the participant or may require intervention to prevent one of the other serious outcomes listed in the definition above). A summary of other nonserious AEs, and all SAE's, regardless of causality, is located in the Reported Adverse Events section.

Time frame: Up To 160 Weeks

Population: All randomized participants who received at least one dose of study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ramucirumab + CapecitabineNumber of Participants With Serious Adverse Events (SAEs)20 Participants
Icrucumab + CapecitabineNumber of Participants With Serious Adverse Events (SAEs)25 Participants
CapecitabineNumber of Participants With Serious Adverse Events (SAEs)6 Participants
Secondary

Overall Survival (OS)

Overall survival is defined as the time from the date of randomization to the date of death from any cause. If the participant is alive at the end of the follow-up period or is lost to follow-up, OS will be censored on the last date the participant is known to be alive.

Time frame: From Date of Randomization until Death Due to Any Cause (Up To 160 weeks)

Population: All randomized participants who received at least one dose of study drug; censored participants: Ramucirumab + Capecitabine = 21; Icrucumab + Capecitabine = 17; Capecitabine = 22 Participants were analyzed as per the randomization.

ArmMeasureValue (MEDIAN)
Ramucirumab + CapecitabineOverall Survival (OS)67.4 Weeks
Icrucumab + CapecitabineOverall Survival (OS)62.1 Weeks
CapecitabineOverall Survival (OS)71.6 Weeks
p-value: 0.028395% CI: [1.06, 3.169]Log Rank
p-value: 0.15595% CI: [0.862, 2.501]Log Rank
Secondary

Percentage of Participants With Objective Response Rate (ORR)

The ORR is the number of all participants with Partial Response (PR) or Complete Response (CR) according to RECIST v1.1 from the start of the treatment until disease progression/recurrence. CR was defined as the disappearance of all non-nodal target lesions, with the short axes of any target lymph nodes reduced to \<10 mm. PR was defined as ≥30% decrease in the sum of the diameters of target lesions (including the short axes of any target lymph nodes), taking as reference the baseline sum diameter. Disease progression is defined as ≥20% increase in the sum of diameters of target lesions, taking as reference smallest sum on study (included baseline sum if that was the smallest on study); sum must have demonstrated an absolute increase of ≥5 mm and the appearance of ≥1 new lesions was progression.

Time frame: From Date of Randomization until Disease Progression/Recurrence (Up to 97 weeks)

Population: All randomized participants who received at least one dose of study drug.

ArmMeasureValue (NUMBER)
Ramucirumab + CapecitabinePercentage of Participants With Objective Response Rate (ORR)28.8 Percentage of Participants
Icrucumab + CapecitabinePercentage of Participants With Objective Response Rate (ORR)20.4 Percentage of Participants
CapecitabinePercentage of Participants With Objective Response Rate (ORR)34.7 Percentage of Participants
p-value: 0.6691Fisher Exact
p-value: 0.1743Fisher Exact
Secondary

Terminal Half-life (t½) of Ramucirumab or Icrucumab

Terminal half-life (t½) of Ramucirumab and Icrucumab.

Time frame: Cycle 1: Pre-infusion, 1h, 48h, 72h, 168, 336h post infusion

Population: For ramucirumab, all randomized participants who received at least one dose of study drug \& had evaluable pharmacokinetic (PK) samples.~For icrucumab, zero participants analyzed as reliable PK parameters could not be estimated using non-compartmental PK analysis due to insufficient number of samples.

ArmMeasureValue (GEOMETRIC_MEAN)
Ramucirumab + CapecitabineTerminal Half-life (t½) of Ramucirumab or Icrucumab6.80 Days
Secondary

Volume of Distribution at Steady State (Vss) of Ramucirumab or Icrucumab

Volume of Distribution at Steady State (Vss) of Ramucirumab and Icrucumab.

Time frame: Cycle 1: Pre-infusion, 1h, 48h, 72h, 168, 336h post infusion

Population: For ramucirumab, all randomized participants who received at least one dose of study drug \& had evaluable pharmacokinetic (PK) samples.~For icrucumab, zero participants analyzed as reliable PK parameters could not be estimated using non-compartmental PK analysis due to insufficient number of samples.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Ramucirumab + CapecitabineVolume of Distribution at Steady State (Vss) of Ramucirumab or Icrucumab3.17 LitersGeometric Coefficient of Variation 18

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