A Study of Ramucirumab in Participants With Gastric or Gastroesophageal Junction Adenocarcinoma

Phase 2

Completed

Conditions: Metastatic Gastric Adenocarcinoma
Gastroesophageal Junction Adenocarcinoma

Interventions: Drug: Ramucirumab
Drug: Placebo
Drug: S-1
Drug: Oxaliplatin
Drug: Paclitaxel

Registration Number: NCT02539225

Lead Sponsor: Eli Lilly and Company

Brief Summary: The main purpose of this study is to evaluate the effectiveness of S-1 and oxaliplatin with or without ramucirumab as first line therapy in participants with metastatic gastric or gastroesophageal junction (GEJ) adenocarcinoma.

Detailed Description: Not available

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 191

Inclusion Criteria

Have a histopathologically or cytologically confirmed diagnosis of metastatic gastric or GEJ adenocarcinoma. Participants with esophageal cancer are not eligible.
Have not received any prior first-line systemic therapy for gastric or GEJ adenocarcinoma (prior adjuvant or neoadjuvant therapy is permitted). Participants whose disease has progressed after >24 weeks following the last dose of systemic treatment in the adjuvant/neoadjuvant setting are eligible.
Have measurable or nonmeasurable but evaluable disease determined using guidelines in Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST v.1.1).
Have a performance status of 0 or 1 on the Eastern Cooperative Oncology Group (ECOG) scale at baseline.
Have adequate organ function.
Have an estimated life expectancy of ≥12 weeks in the judgment of the investigator.
Eligible participants of reproductive potential (both sexes) must agree to use contraception (hormonal or barrier methods) during the study period and at least 6 months after the last dose of study treatment or longer if required per local regulations.
Are willing to provide a blood sample for research purposes. Submission of a blood sample is mandatory for participation in this study unless restricted by local regulations or ethical review boards (ERBs); submission of a tumor tissue sample is optional.

Exclusion Criteria

Participants with human epidermal growth factor receptor 2 (HER2)-positive status as determined per local standards. Participants with a negative test or having an indeterminate result due to any reason are eligible, provided these participants are not eligible for treatment directed against tumors which overexpress HER2.
Have radiation therapy within 14 days prior to randomization. Any lesion requiring palliative radiation or which has been previously irradiated cannot be considered for response assessment.
Have documented brain metastases, leptomeningeal disease, or uncontrolled spinal cord compression.
Have undergone major surgery within 28 days prior to randomization.
Are currently enrolled in, or discontinued study drug within the last 28 days from, a clinical trial involving an investigational product or non-approved use of a drug or device (other than the study drug used in this study), or are concurrently enrolled in any other type of medical research judged not to be scientifically or medically compatible with this study. Participants participating in surveys or observational studies are eligible to participate in this study.
Are pregnant or breast feeding. Females of childbearing potential must have a negative serum or urine pregnancy test within 7 days prior to first dose of study treatment.
Have any prior malignancies.
Have any condition (eg, psychological, geographical, or medical) that does not permit compliance with the study and follow-up procedures or suggest that the participant is, in the investigator's opinion, not an appropriate candidate for the study.

Study & Design

Study Type: INTERVENTIONAL

Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
S-1/Oxaliplatin + Placebo	Placebo	(Part A) Placebo IV on day 1 and day 8 along with S-1 PO on days 1-14 and oxaliplatin IV on day 1 of each 21 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met then move to Part B. (Part B) Ramucirumab IV on day 1 and day 15 along with paclitaxel IV on day 1, 8, and 15 of each 28 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met.
S-1/Oxaliplatin + Ramucirumab	Ramucirumab	(Part A) Ramucirumab intravenously (IV) on day 1 and day 8 along with S-1 by mouth (PO) on days 1-14 and oxaliplatin IV on day 1 of each 21 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met then move to Part B. (Part B) Ramucirumab IV on day 1 and day 15 along with paclitaxel IV on day 1, 8, and 15 of each 28 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met.
S-1/Oxaliplatin + Ramucirumab	S-1	(Part A) Ramucirumab intravenously (IV) on day 1 and day 8 along with S-1 by mouth (PO) on days 1-14 and oxaliplatin IV on day 1 of each 21 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met then move to Part B. (Part B) Ramucirumab IV on day 1 and day 15 along with paclitaxel IV on day 1, 8, and 15 of each 28 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met.
S-1/Oxaliplatin + Ramucirumab	Paclitaxel	(Part A) Ramucirumab intravenously (IV) on day 1 and day 8 along with S-1 by mouth (PO) on days 1-14 and oxaliplatin IV on day 1 of each 21 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met then move to Part B. (Part B) Ramucirumab IV on day 1 and day 15 along with paclitaxel IV on day 1, 8, and 15 of each 28 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met.
S-1/Oxaliplatin + Ramucirumab	Oxaliplatin	(Part A) Ramucirumab intravenously (IV) on day 1 and day 8 along with S-1 by mouth (PO) on days 1-14 and oxaliplatin IV on day 1 of each 21 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met then move to Part B. (Part B) Ramucirumab IV on day 1 and day 15 along with paclitaxel IV on day 1, 8, and 15 of each 28 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met.
S-1/Oxaliplatin + Placebo	Ramucirumab	(Part A) Placebo IV on day 1 and day 8 along with S-1 PO on days 1-14 and oxaliplatin IV on day 1 of each 21 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met then move to Part B. (Part B) Ramucirumab IV on day 1 and day 15 along with paclitaxel IV on day 1, 8, and 15 of each 28 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met.
S-1/Oxaliplatin + Placebo	S-1	(Part A) Placebo IV on day 1 and day 8 along with S-1 PO on days 1-14 and oxaliplatin IV on day 1 of each 21 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met then move to Part B. (Part B) Ramucirumab IV on day 1 and day 15 along with paclitaxel IV on day 1, 8, and 15 of each 28 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met.
S-1/Oxaliplatin + Placebo	Oxaliplatin	(Part A) Placebo IV on day 1 and day 8 along with S-1 PO on days 1-14 and oxaliplatin IV on day 1 of each 21 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met then move to Part B. (Part B) Ramucirumab IV on day 1 and day 15 along with paclitaxel IV on day 1, 8, and 15 of each 28 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met.
S-1/Oxaliplatin + Placebo	Paclitaxel	(Part A) Placebo IV on day 1 and day 8 along with S-1 PO on days 1-14 and oxaliplatin IV on day 1 of each 21 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met then move to Part B. (Part B) Ramucirumab IV on day 1 and day 15 along with paclitaxel IV on day 1, 8, and 15 of each 28 day cycle. Participants may continue on study drug until disease progression, unacceptable toxicity, or other withdrawal criterion is met.

Primary Outcome Measures

Name	Time	Method
Progression Free Survival (PFS)	Randomization to Radiographic Documentation of Progression or Death Due to Any Cause (Up to 25 Months)	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) or the appearance of ≥1 new lesions was progression. Participants who did not progress, were lost to follow-up were censored at the day of their last adequate tumor assessment.

Secondary Outcome Measures

Name	Time	Method
Progression-free Survival to the Second Disease Progression (PFS 2)	Randomization to Second Radiographic Documentation of Progression or Death Due to Any Cause (Up to 31 Months)	Progression-free survival 2 (PFS2) is defined as the time from the date of randomization to second disease progression (defined as the date of first tumor assessment observing PD defined by RECIST v.1.1, after the start of second-line therapy using the last tumor assessment before starting the second-line therapy (RAM+PTX) as the baseline assessment), or death of any cause, whichever occurs first. If the second-line therapy was not started, the OS will be substituted for PFS2. If a post-discontinuation therapy was started before observing PD after the start of second-line therapy. PD is defined as at least a 20% increase in the sum of the diameters of target lesions, with reference being the smallest sum on study and an absolute increase of at least 5 mm, or unequivocal progression of non-target lesions, or 1 or more new lesions. PFS2 will be censored at the date of the last adequate tumor assessment on or before staring the post-discontinuation therapy.
Overall Survival (OS)	Randomization to Death Due to Any Cause (Up to 31 Months)	Overall survival is defined as time from the date of randomization to the date of death from any cause. If the patient was alive at the cut-off for analysis (or lost to follow-up), OS data were censored for analysis on the last date the patient was known to be alive.
Percentage of Participants With Objective Response Rate (ORR)	Randomization to Disease Progression (Up to 25 Months)	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 is defined as the disappearance of all non-nodal target lesions, with the short axes of any target lymph nodes reduced to \<10 mm. PR is 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 or the appearance of ≥1 new lesions was progression.
Disease Control Rate (DCR)	Randomization to Disease Progression (Up to 25 Months)	Disease Control Rate (DCR) was the percentage of participants with a best overall response of CR, PR, or Stable Disease (SD) as per Response using RECIST v1.1 criteria. CR defined as the disappearance of all target and non-target lesions and no appearance of new lesions. PR defined as at least a 30% decrease in the sum of the LD of target lesions (taking as reference the baseline sum LD), no progression of non-target lesions, and no appearance of new lesions. SD was neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD for target lesions, no progression of non-target lesions, and no appearance of new lesions. 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 or the appearance of ≥1 new lesions was progression.
Pharmacokinetics (PK): Minimum Concentration (Cmin) of Ramucirumab in Part A	Cycle 1 Day 1 & 8 Predose, Cycle 2 Day 1 Predose, Cycle 3 Day 1 Predose, Cycle 5 Day 1 Predose, Cycle 9 Day 1 Predose	Pharmacokinetics (PK): Minimum Concentration (Cmin) of Ramucirumab in Part A.
Pharmacokinetics (PK): Minimum Concentration (Cmin) of Ramucirumab in Part B	Cycle 1 Day 1 predose, Cycle 2 Day 1 predose	Pharmacokinetics (PK): Minimum Concentration (Cmin) of Ramucirumab in Part B.
Number of Participants With Anti-Ramucirumab Antibodies	Baseline through 25 months	Participant is considered as treatment emergent anti-drug antibody (TE ADA) positive if the participant has at least one post baseline titer that is a 4-fold or greater increase in titer from baseline measurement. If baseline result is ADA Not Present, then the participant is TE ADA+ if there is at least one post baseline result of ADA Present with titer \>= 20.

Trial Locations

Locations (2): For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician
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Toyonaka, Japan
For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
🇨🇳
Taipei, Taiwan