Trial Outcomes & Findings for A Study of Xeloda (Capecitabine) in Patients With Metastatic Colorectal Cancer (NCT NCT00069108)

Last Updated: 2016-04-01

Results Overview

Progression free survival (PFS) is defined as the time from the date of randomization to the day of documented disease progression or death from any cause. It was based on tumor assessments made according to the Response Evaluation Criteria In Solid Tumors (RECIST) version 1.0, wherein progressive disease (PD) was defined as at least a 20% increase in the sum of the longest diameter (LD) of the target lesions (TLs), taking as reference the smallest sum LD recorded since the treatment started or appearance of one or more new lesions or unequivocal progression of existing non-target lesions. Participants with neither disease progression nor death were censored at the last date of the last tumor assessment confirming that they had not progressed. Participants with no tumor assessments after baseline but who were still alive at the time of the clinical cut-off were censored at date of randomization

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

627 participants

Primary outcome timeframe

Up to 3 years

Results posted on

2016-04-01

Participant Flow

The study was conducted from 09 Jul 2003 to 31 Aug 2006 at 87 centers in 19 countries.

Participant milestones

Participant milestones
Measure	XELOX Participants received XELOX (oxaliplatin and capecitabine). Oxaliplatin was administered 130 mg/m\^2 intravenous (IV) infusion over 2 hours (every 3 weeks \[Day 1\]) before the first dose of capecitabine. Capecitabine was administered orally within 30 minutes after the end of a meal (breakfast and dinner) at a dose of 1000 mg/m\^2 twice-daily (equivalent to a total daily dose of 2000 mg/m\^2), with first dose the evening of Day 1 and last dose the morning of Day 15, given as intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) for up to 8 cycles (24-weeks).	FOLFOX-4 Participants received FOLFOX-4 (combination of oxaliplatin, leucovorin \[LV\] and 5-fluorouracil \[5-FU\] combination). Oxaliplatin was administered as an 85 mg/m\^2 IV infusion over 2 hours (on Day 1 only); with LV infusion as 200mg/m\^2 over 2 hours followed by 5-FU, given as 400mg/m2 bolus injection over 2-4 minutes, and then as a 600 mg/m\^2 continuous infusion over 22 hours. On Day 2, Leucovorin 200 mg/m\^2 (alone), followed by 5-FU 400 mg/m\^2 bolus injection over 2-4 minutes, and 5-FU 600 mg/m\^2 continuous infusion was repeated over 22 hours. It was (2-week cycles comprising 48 hours of infusion and 12 days of rest) for up to 12 cycles (24- weeks).
Overall Study STARTED	313	314
Overall Study COMPLETED	100	95
Overall Study NOT COMPLETED	213	219

Reasons for withdrawal

Reasons for withdrawal
Measure	XELOX Participants received XELOX (oxaliplatin and capecitabine). Oxaliplatin was administered 130 mg/m\^2 intravenous (IV) infusion over 2 hours (every 3 weeks \[Day 1\]) before the first dose of capecitabine. Capecitabine was administered orally within 30 minutes after the end of a meal (breakfast and dinner) at a dose of 1000 mg/m\^2 twice-daily (equivalent to a total daily dose of 2000 mg/m\^2), with first dose the evening of Day 1 and last dose the morning of Day 15, given as intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) for up to 8 cycles (24-weeks).	FOLFOX-4 Participants received FOLFOX-4 (combination of oxaliplatin, leucovorin \[LV\] and 5-fluorouracil \[5-FU\] combination). Oxaliplatin was administered as an 85 mg/m\^2 IV infusion over 2 hours (on Day 1 only); with LV infusion as 200mg/m\^2 over 2 hours followed by 5-FU, given as 400mg/m2 bolus injection over 2-4 minutes, and then as a 600 mg/m\^2 continuous infusion over 22 hours. On Day 2, Leucovorin 200 mg/m\^2 (alone), followed by 5-FU 400 mg/m\^2 bolus injection over 2-4 minutes, and 5-FU 600 mg/m\^2 continuous infusion was repeated over 22 hours. It was (2-week cycles comprising 48 hours of infusion and 12 days of rest) for up to 12 cycles (24- weeks).
Overall Study Withdrawal by Subject	5	9
Overall Study Adverse Event	64	42
Overall Study Death	6	6
Overall Study Administration	15	4
Overall Study Insufficient therapy	117	144
Overall Study Violation criteria	1	4
Overall Study Refused treatment	5	10

Baseline Characteristics

A Study of Xeloda (Capecitabine) in Patients With Metastatic Colorectal Cancer

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure	XELOX n=313 Participants Participants received XELOX (oxaliplatin and capecitabine). Oxaliplatin was administered 130 mg/m\^2 IV infusion over 2 hours (every 3 weeks \[Day 1\]) before the first dose of capecitabine. Capecitabine was administered orally within 30 minutes after the end of a meal (breakfast and dinner) at a dose of 1000 mg/m\^2 twice-daily (equivalent to a total daily dose of 2000 mg/m\^2), with first dose the evening of Day 1 and last dose the morning of Day 15, given as intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) for up to 8 cycles (24-weeks).	FOLFOX-4 n=314 Participants Participants received FOLFOX-4 (combination of oxaliplatin, leucovorin \[LV\] and 5-fluorouracil \[5-FU\] combination). Oxaliplatin was administered as an 85 mg/m\^2 IV infusion over 2 hours (on Day 1 only); with LV infusion as 200mg/m\^2 over 2 hours followed by 5-FU, given as 400mg/m2 bolus injection over 2-4 minutes, and then as a 600 mg/m\^2 continuous infusion over 22 hours. On Day 2, Leucovorin 200 mg/m\^2 (alone), followed by 5-FU 400 mg/m\^2 bolus injection over 2-4 minutes, and 5-FU 600 mg/m\^2 continuous infusion was repeated over 22 hours. It was (2-week cycles comprising 48 hours of infusion and 12 days of rest) for up to 12 cycles (24- weeks).	Total n=627 Participants Total of all reporting groups
Age, Continuous	60.7 Years STANDARD_DEVIATION 9.91 • n=5 Participants	59.7 Years STANDARD_DEVIATION 10.55 • n=7 Participants	60.2 Years STANDARD_DEVIATION 10.24 • n=5 Participants
Sex: Female, Male Female	119 Participants n=5 Participants	123 Participants n=7 Participants	242 Participants n=5 Participants
Sex: Female, Male Male	194 Participants n=5 Participants	191 Participants n=7 Participants	385 Participants n=5 Participants

PRIMARY outcome

Timeframe: Up to 3 years

Population: The per protocol (PP) population included randomized participants who received at least one dose of capecitabine, 5-FU, or oxaliplatin, or who did not had a major violation of protocol inclusion or exclusion criteria assessments.

Outcome measures

Outcome measures
Measure	XELOX n=251 Participants Participants received XELOX (oxaliplatin and capecitabine). Oxaliplatin was administered 130 mg/m\^2 intravenous (IV) infusion over 2 hours (every 3 weeks \[Day 1\]) before the first dose of capecitabine. Capecitabine was administered orally within 30 minutes after the end of a meal (breakfast and dinner) at a dose of 1000 mg/m\^2 twice-daily (equivalent to a total daily dose of 2000 mg/m\^2), with first dose the evening of Day 1 and last dose the morning of Day 15, given as intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) for up to 8 cycles (24-weeks).	FOLFOX-4 n=252 Participants Participants received FOLFOX-4 (combination of oxaliplatin, leucovorin \[LV\] and 5-fluorouracil \[5-FU\] combination). Oxaliplatin was administered as an 85 mg/m\^2 IV infusion over 2 hours (on Day 1 only); with LV infusion as 200mg/m\^2 over 2 hours followed by 5-FU, given as 400mg/m2 bolus injection over 2-4 minutes, and then as a 600 mg/m\^2 continuous infusion over 22 hours. On Day 2, Leucovorin 200 mg/m\^2 (alone), followed by 5-FU 400 mg/m\^2 bolus injection over 2-4 minutes, and 5-FU 600 mg/m\^2 continuous infusion was repeated over 22 hours. It was (2-week cycles comprising 48 hours of infusion and 12 days of rest) for up to 12 cycles (24- weeks).
Progression Free Survival	154 days Interval 140.0 to 175.0	168 days Interval 145.0 to 182.0

SECONDARY outcome

Timeframe: Up to 3 years

Population: PP population excluded randomized participants who did not receive at least one dose of Capecitabine, 5-FU, or Oxaliplatin, or who had a major violation of protocol inclusion or exclusion criteria.

Progression free survival (PFS) is defined as the time from the date of randomization to the day of documented disease progression or death from any cause. It was based on tumor assessments made according to the RECIST version 1.0, wherein PD was defined as at least a 20% increase in the sum of the LD of the TLs, taking as reference the smallest sum LD recorded since the treatment started or appearance of one or more new lesions or unequivocal progression of existing non-TLs. Participants with neither disease progression nor death were censored at the last date of the last tumor assessment confirming that they had not progressed. Participants with no tumor assessments after baseline but who were still alive at the time of the clinical cut-off were censored at date of randomization. This PFS evaluation was based on Independent Review Committee Assessment.

Outcome measures

Outcome measures
Measure	XELOX n=251 Participants Participants received XELOX (oxaliplatin and capecitabine). Oxaliplatin was administered 130 mg/m\^2 intravenous (IV) infusion over 2 hours (every 3 weeks \[Day 1\]) before the first dose of capecitabine. Capecitabine was administered orally within 30 minutes after the end of a meal (breakfast and dinner) at a dose of 1000 mg/m\^2 twice-daily (equivalent to a total daily dose of 2000 mg/m\^2), with first dose the evening of Day 1 and last dose the morning of Day 15, given as intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) for up to 8 cycles (24-weeks).	FOLFOX-4 n=252 Participants Participants received FOLFOX-4 (combination of oxaliplatin, leucovorin \[LV\] and 5-fluorouracil \[5-FU\] combination). Oxaliplatin was administered as an 85 mg/m\^2 IV infusion over 2 hours (on Day 1 only); with LV infusion as 200mg/m\^2 over 2 hours followed by 5-FU, given as 400mg/m2 bolus injection over 2-4 minutes, and then as a 600 mg/m\^2 continuous infusion over 22 hours. On Day 2, Leucovorin 200 mg/m\^2 (alone), followed by 5-FU 400 mg/m\^2 bolus injection over 2-4 minutes, and 5-FU 600 mg/m\^2 continuous infusion was repeated over 22 hours. It was (2-week cycles comprising 48 hours of infusion and 12 days of rest) for up to 12 cycles (24- weeks).
Progression Free Survival Based on Independent Review Committee Assessment	168 days Interval 139.0 to 183.0	162 days Interval 141.0 to 179.0

SECONDARY outcome

Timeframe: Up to 3 years

Population: All participants who were randomized to one of the two study arms were included in the Intent To Treat (ITT) population. Participants were analyzed according to the arm to which they were randomized.

Progression free survival (PFS) is defined as the time from date of randomization to day of documented disease progression or death from any cause. It was based on tumor assessments made according to the RECIST version 1.0, wherein PD was defined as at least a 20% increase in the sum of LD of the TLs, taking as reference the smallest sum LD recorded since the treatment started or appearance of one or more new lesions or unequivocal progression of existing non-TLs. Participants with neither disease progression nor death were censored at the last date of the last tumor assessment confirming that they had not progressed. Participants with no tumor assessments after baseline but who were still alive at the time of the clinical cut-off were censored at date of randomization. PFS was analyzed using an on-treatment approach included only disease progression and death that occurred no later than 28 days after the last confirmed intake of study medication in the primary study treatment phase.

Outcome measures

Outcome measures
Measure	XELOX n=313 Participants Participants received XELOX (oxaliplatin and capecitabine). Oxaliplatin was administered 130 mg/m\^2 intravenous (IV) infusion over 2 hours (every 3 weeks \[Day 1\]) before the first dose of capecitabine. Capecitabine was administered orally within 30 minutes after the end of a meal (breakfast and dinner) at a dose of 1000 mg/m\^2 twice-daily (equivalent to a total daily dose of 2000 mg/m\^2), with first dose the evening of Day 1 and last dose the morning of Day 15, given as intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) for up to 8 cycles (24-weeks).	FOLFOX-4 n=314 Participants Participants received FOLFOX-4 (combination of oxaliplatin, leucovorin \[LV\] and 5-fluorouracil \[5-FU\] combination). Oxaliplatin was administered as an 85 mg/m\^2 IV infusion over 2 hours (on Day 1 only); with LV infusion as 200mg/m\^2 over 2 hours followed by 5-FU, given as 400mg/m2 bolus injection over 2-4 minutes, and then as a 600 mg/m\^2 continuous infusion over 22 hours. On Day 2, Leucovorin 200 mg/m\^2 (alone), followed by 5-FU 400 mg/m\^2 bolus injection over 2-4 minutes, and 5-FU 600 mg/m\^2 continuous infusion was repeated over 22 hours. It was (2-week cycles comprising 48 hours of infusion and 12 days of rest) for up to 12 cycles (24- weeks).
Progression Free Survival Based on Treatment Analysis- Intent To Treat Population	145 days Interval 137.0 to 169.0	152 days Interval 137.0 to 172.0

SECONDARY outcome

Timeframe: Up to 3 years

Population: The PP population included randomized participants who received at least one dose of Capecitabine, 5-FU, or Oxaliplatin, or who did not had a major violation of protocol inclusion or exclusion criteria assessments.

Progression free survival (PFS) is defined as the time from the date of randomization to the day of documented disease progression or death from any cause. It was based on tumor assessments made according to the RECIST version 1.0, wherein PD was defined as at least a 20% increase in the sum of the LD of the TLs, taking as reference the smallest sum LD recorded since the treatment started or appearance of one or more new lesions or unequivocal progression of existing non-TLs. Participants with neither disease progression nor death were censored at the last date of the last tumor assessment confirming that they had not progressed. Participants with no tumor assessments after baseline but who were still alive at the time of the clinical cut-off were censored at date of randomization

Outcome measures

Outcome measures
Measure	XELOX n=251 Participants Participants received XELOX (oxaliplatin and capecitabine). Oxaliplatin was administered 130 mg/m\^2 intravenous (IV) infusion over 2 hours (every 3 weeks \[Day 1\]) before the first dose of capecitabine. Capecitabine was administered orally within 30 minutes after the end of a meal (breakfast and dinner) at a dose of 1000 mg/m\^2 twice-daily (equivalent to a total daily dose of 2000 mg/m\^2), with first dose the evening of Day 1 and last dose the morning of Day 15, given as intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) for up to 8 cycles (24-weeks).	FOLFOX-4 n=252 Participants Participants received FOLFOX-4 (combination of oxaliplatin, leucovorin \[LV\] and 5-fluorouracil \[5-FU\] combination). Oxaliplatin was administered as an 85 mg/m\^2 IV infusion over 2 hours (on Day 1 only); with LV infusion as 200mg/m\^2 over 2 hours followed by 5-FU, given as 400mg/m2 bolus injection over 2-4 minutes, and then as a 600 mg/m\^2 continuous infusion over 22 hours. On Day 2, Leucovorin 200 mg/m\^2 (alone), followed by 5-FU 400 mg/m\^2 bolus injection over 2-4 minutes, and 5-FU 600 mg/m\^2 continuous infusion was repeated over 22 hours. It was (2-week cycles comprising 48 hours of infusion and 12 days of rest) for up to 12 cycles (24- weeks).
Progression Free Survival Based on Treatment Analysis- Per Population	153 days Interval 139.0 to 172.0	164 days Interval 142.0 to 175.0

SECONDARY outcome

Timeframe: Up to 3 years

Population: All participants who were randomized to one of the two study arms were included in the ITT population. Participants in this population were analyzed according to the arm to which they were randomized.

Best overall response is best response recorded from start of treatment until disease progression/recurrence where responses include complete response (CR), partial response (PR), or stable disease (SD). CR was defined as disappearance of all TLs, non-TLs along with normalization of tumor marker level. PR is at least 30% decrease in sum of the LD of TLs, taking as reference baseline sum LD. SD is defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking reference of smallest sum LD since treatment started. It was dependent on achievement of measurement and confirmation criteria. BOR .i.e. CR or PR was confirmed by repeat assessments performed within 4 weeks. For SD, follow-up assessments had to meet the SD criteria at least once after study entry within 6 to 8 weeks.

Outcome measures

Outcome measures
Measure	XELOX n=313 Participants Participants received XELOX (oxaliplatin and capecitabine). Oxaliplatin was administered 130 mg/m\^2 intravenous (IV) infusion over 2 hours (every 3 weeks \[Day 1\]) before the first dose of capecitabine. Capecitabine was administered orally within 30 minutes after the end of a meal (breakfast and dinner) at a dose of 1000 mg/m\^2 twice-daily (equivalent to a total daily dose of 2000 mg/m\^2), with first dose the evening of Day 1 and last dose the morning of Day 15, given as intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) for up to 8 cycles (24-weeks).	FOLFOX-4 n=314 Participants Participants received FOLFOX-4 (combination of oxaliplatin, leucovorin \[LV\] and 5-fluorouracil \[5-FU\] combination). Oxaliplatin was administered as an 85 mg/m\^2 IV infusion over 2 hours (on Day 1 only); with LV infusion as 200mg/m\^2 over 2 hours followed by 5-FU, given as 400mg/m2 bolus injection over 2-4 minutes, and then as a 600 mg/m\^2 continuous infusion over 22 hours. On Day 2, Leucovorin 200 mg/m\^2 (alone), followed by 5-FU 400 mg/m\^2 bolus injection over 2-4 minutes, and 5-FU 600 mg/m\^2 continuous infusion was repeated over 22 hours. It was (2-week cycles comprising 48 hours of infusion and 12 days of rest) for up to 12 cycles (24- weeks).
Best Overall Response, Investigators' Assessments Investigator Assessed, Responders	63 participants	55 participants
Best Overall Response, Investigators' Assessments Investigator assessed-CR	0 participants	2 participants
Best Overall Response, Investigators' Assessments Investigator assessed-PR	63 participants	53 participants

SECONDARY outcome

Timeframe: Up to 3 years

Best overall response is best response recorded from start of treatment until disease progression/recurrence where responses include CR, PR, or SD. CR was defined as disappearance of all TLs, non-TLs along with normalization of tumor marker level. PR is at least 30% decrease in sum of the LD of TLs, taking as reference baseline sum LD. SD defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking reference of smallest sum LD since treatment started. It was dependent on achievement of measurement and confirmation criteria. BOR .i.e. CR or PR was confirmed by repeat assessments performed within 4 weeks, for SD, follow-up assessments had to meet the SD criteria at least once after study entry within 6 to 8 weeks. This PFS evaluation was based on Independent Review Committee Assessment.

Outcome measures

Outcome measures
Measure	XELOX n=313 Participants Participants received XELOX (oxaliplatin and capecitabine). Oxaliplatin was administered 130 mg/m\^2 intravenous (IV) infusion over 2 hours (every 3 weeks \[Day 1\]) before the first dose of capecitabine. Capecitabine was administered orally within 30 minutes after the end of a meal (breakfast and dinner) at a dose of 1000 mg/m\^2 twice-daily (equivalent to a total daily dose of 2000 mg/m\^2), with first dose the evening of Day 1 and last dose the morning of Day 15, given as intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) for up to 8 cycles (24-weeks).	FOLFOX-4 n=314 Participants Participants received FOLFOX-4 (combination of oxaliplatin, leucovorin \[LV\] and 5-fluorouracil \[5-FU\] combination). Oxaliplatin was administered as an 85 mg/m\^2 IV infusion over 2 hours (on Day 1 only); with LV infusion as 200mg/m\^2 over 2 hours followed by 5-FU, given as 400mg/m2 bolus injection over 2-4 minutes, and then as a 600 mg/m\^2 continuous infusion over 22 hours. On Day 2, Leucovorin 200 mg/m\^2 (alone), followed by 5-FU 400 mg/m\^2 bolus injection over 2-4 minutes, and 5-FU 600 mg/m\^2 continuous infusion was repeated over 22 hours. It was (2-week cycles comprising 48 hours of infusion and 12 days of rest) for up to 12 cycles (24- weeks).
Best Overall Response, Independent Review Committee Assessment IRC Assessed, Responders	48 participants	39 participants
Best Overall Response, Independent Review Committee Assessment IRC assessed-CR	0 participants	0 participants
Best Overall Response, Independent Review Committee Assessment IRC assessed-PR	48 participants	39 participants

SECONDARY outcome

Timeframe: Up to 3 years

Overall survival was measured as the time from the date of randomization to the date of death. Participant who were not reported to have died at the time of the analysis were censored using the date they were last known to be alive.

Outcome measures

Outcome measures
Measure	XELOX n=313 Participants Participants received XELOX (oxaliplatin and capecitabine). Oxaliplatin was administered 130 mg/m\^2 intravenous (IV) infusion over 2 hours (every 3 weeks \[Day 1\]) before the first dose of capecitabine. Capecitabine was administered orally within 30 minutes after the end of a meal (breakfast and dinner) at a dose of 1000 mg/m\^2 twice-daily (equivalent to a total daily dose of 2000 mg/m\^2), with first dose the evening of Day 1 and last dose the morning of Day 15, given as intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) for up to 8 cycles (24-weeks).	FOLFOX-4 n=314 Participants Participants received FOLFOX-4 (combination of oxaliplatin, leucovorin \[LV\] and 5-fluorouracil \[5-FU\] combination). Oxaliplatin was administered as an 85 mg/m\^2 IV infusion over 2 hours (on Day 1 only); with LV infusion as 200mg/m\^2 over 2 hours followed by 5-FU, given as 400mg/m2 bolus injection over 2-4 minutes, and then as a 600 mg/m\^2 continuous infusion over 22 hours. On Day 2, Leucovorin 200 mg/m\^2 (alone), followed by 5-FU 400 mg/m\^2 bolus injection over 2-4 minutes, and 5-FU 600 mg/m\^2 continuous infusion was repeated over 22 hours. It was (2-week cycles comprising 48 hours of infusion and 12 days of rest) for up to 12 cycles (24- weeks).
Overall Survival	363 days Interval 320.0 to 412.0	382 days Interval 323.0 to 418.0

SECONDARY outcome

Timeframe: Up to 3 years

Time to response (TOR) (best response of CR or PR) was measured as the time from randomization to the first date on which the measurement criteria for CR or PR (whichever status was recorded first) were met. CR for TLs was defined as disappearance of all TLs and for non-TLs as disappearance of all non-TLs and normalization of tumor marker level. PR was defined as at least 30% decrease in the sum of the LD of TLs, taking as reference the baseline sum LD.

Outcome measures

Outcome measures
Measure	XELOX n=313 Participants Participants received XELOX (oxaliplatin and capecitabine). Oxaliplatin was administered 130 mg/m\^2 intravenous (IV) infusion over 2 hours (every 3 weeks \[Day 1\]) before the first dose of capecitabine. Capecitabine was administered orally within 30 minutes after the end of a meal (breakfast and dinner) at a dose of 1000 mg/m\^2 twice-daily (equivalent to a total daily dose of 2000 mg/m\^2), with first dose the evening of Day 1 and last dose the morning of Day 15, given as intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) for up to 8 cycles (24-weeks).	FOLFOX-4 n=314 Participants Participants received FOLFOX-4 (combination of oxaliplatin, leucovorin \[LV\] and 5-fluorouracil \[5-FU\] combination). Oxaliplatin was administered as an 85 mg/m\^2 IV infusion over 2 hours (on Day 1 only); with LV infusion as 200mg/m\^2 over 2 hours followed by 5-FU, given as 400mg/m2 bolus injection over 2-4 minutes, and then as a 600 mg/m\^2 continuous infusion over 22 hours. On Day 2, Leucovorin 200 mg/m\^2 (alone), followed by 5-FU 400 mg/m\^2 bolus injection over 2-4 minutes, and 5-FU 600 mg/m\^2 continuous infusion was repeated over 22 hours. It was (2-week cycles comprising 48 hours of infusion and 12 days of rest) for up to 12 cycles (24- weeks).
Time To Response Week 1-6	13 participants	11 participants
Time To Response Week 7-12	26 participants	23 participants
Time To Response Week 13-18	22 participants	18 participants
Time To Response Week 19-24	2 participants	3 participants

SECONDARY outcome

Timeframe: Up to 3 years

Population: All participants who were randomized to one of the two study arms were included in the Intent-to-treat (ITT) population. Participants in this population were analyzed according to the arm to which they were randomized.

Duration of response (DOR) is defined as the time when CR or PR was first met up to first date that PD or death is documented. CR is defined as disappearance of all TLs and non TLs, PR is defined as at least 30% decrease in the sum of the LD of TLs, taking as reference the baseline sum LD. PD was defined as at least a 20% increase in the sum of the LD of the TLs, taking as reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions for the TLs or the appearance of one or more new lesions and/or unequivocal progression of existing non-TLs.

Outcome measures

Outcome measures
Measure	XELOX n=313 Participants Participants received XELOX (oxaliplatin and capecitabine). Oxaliplatin was administered 130 mg/m\^2 intravenous (IV) infusion over 2 hours (every 3 weeks \[Day 1\]) before the first dose of capecitabine. Capecitabine was administered orally within 30 minutes after the end of a meal (breakfast and dinner) at a dose of 1000 mg/m\^2 twice-daily (equivalent to a total daily dose of 2000 mg/m\^2), with first dose the evening of Day 1 and last dose the morning of Day 15, given as intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) for up to 8 cycles (24-weeks).	FOLFOX-4 n=314 Participants Participants received FOLFOX-4 (combination of oxaliplatin, leucovorin \[LV\] and 5-fluorouracil \[5-FU\] combination). Oxaliplatin was administered as an 85 mg/m\^2 IV infusion over 2 hours (on Day 1 only); with LV infusion as 200mg/m\^2 over 2 hours followed by 5-FU, given as 400mg/m2 bolus injection over 2-4 minutes, and then as a 600 mg/m\^2 continuous infusion over 22 hours. On Day 2, Leucovorin 200 mg/m\^2 (alone), followed by 5-FU 400 mg/m\^2 bolus injection over 2-4 minutes, and 5-FU 600 mg/m\^2 continuous infusion was repeated over 22 hours. It was (2-week cycles comprising 48 hours of infusion and 12 days of rest) for up to 12 cycles (24- weeks).
Duration Of Response	169 days Interval 142.0 to 192.0	190 days Interval 161.0 to 206.0

SECONDARY outcome

Timeframe: Up to 3 years

Population: All participants who were randomized and received at least one dose of capecitabine, 5-FU, or oxaliplatin were included in the safety population. The safety population was used for the analyses of all safety parameters.

Time to treatment failure was defined as the time from the date of randomization to the first occurrence of adverse event (AE), insufficient therapeutic response, death, failure to return, or refusing treatment/being uncooperative/withdrawing consent.

Outcome measures

Outcome measures
Measure	XELOX n=311 Participants Participants received XELOX (oxaliplatin and capecitabine). Oxaliplatin was administered 130 mg/m\^2 intravenous (IV) infusion over 2 hours (every 3 weeks \[Day 1\]) before the first dose of capecitabine. Capecitabine was administered orally within 30 minutes after the end of a meal (breakfast and dinner) at a dose of 1000 mg/m\^2 twice-daily (equivalent to a total daily dose of 2000 mg/m\^2), with first dose the evening of Day 1 and last dose the morning of Day 15, given as intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) for up to 8 cycles (24-weeks).	FOLFOX-4 n=308 Participants Participants received FOLFOX-4 (combination of oxaliplatin, leucovorin \[LV\] and 5-fluorouracil \[5-FU\] combination). Oxaliplatin was administered as an 85 mg/m\^2 IV infusion over 2 hours (on Day 1 only); with LV infusion as 200mg/m\^2 over 2 hours followed by 5-FU, given as 400mg/m2 bolus injection over 2-4 minutes, and then as a 600 mg/m\^2 continuous infusion over 22 hours. On Day 2, Leucovorin 200 mg/m\^2 (alone), followed by 5-FU 400 mg/m\^2 bolus injection over 2-4 minutes, and 5-FU 600 mg/m\^2 continuous infusion was repeated over 22 hours. It was (2-week cycles comprising 48 hours of infusion and 12 days of rest) for up to 12 cycles (24- weeks).
Time To Treatment Failure	125 days Interval 106.0 to 139.0	121.5 days Interval 101.0 to 137.0

SECONDARY outcome

Timeframe: Up to 3 years

Laboratory abnormalities were defined as those values that were outside the Roche defined reference range and showed a clinically relevant change from baseline. All laboratory parameters were categorized according to the National Cancer Center Common Toxicity Criteria (NCI-CTCAE) grading system. Incidence of Grade 1 to 4 laboratory abnormalities are presented in the table below.

Outcome measures

Outcome measures
Measure	XELOX n=311 Participants Participants received XELOX (oxaliplatin and capecitabine). Oxaliplatin was administered 130 mg/m\^2 intravenous (IV) infusion over 2 hours (every 3 weeks \[Day 1\]) before the first dose of capecitabine. Capecitabine was administered orally within 30 minutes after the end of a meal (breakfast and dinner) at a dose of 1000 mg/m\^2 twice-daily (equivalent to a total daily dose of 2000 mg/m\^2), with first dose the evening of Day 1 and last dose the morning of Day 15, given as intermittent treatment (3-week cycles consisting of 2 weeks of treatment followed by 1 week without treatment) for up to 8 cycles (24-weeks).	FOLFOX-4 n=308 Participants Participants received FOLFOX-4 (combination of oxaliplatin, leucovorin \[LV\] and 5-fluorouracil \[5-FU\] combination). Oxaliplatin was administered as an 85 mg/m\^2 IV infusion over 2 hours (on Day 1 only); with LV infusion as 200mg/m\^2 over 2 hours followed by 5-FU, given as 400mg/m2 bolus injection over 2-4 minutes, and then as a 600 mg/m\^2 continuous infusion over 22 hours. On Day 2, Leucovorin 200 mg/m\^2 (alone), followed by 5-FU 400 mg/m\^2 bolus injection over 2-4 minutes, and 5-FU 600 mg/m\^2 continuous infusion was repeated over 22 hours. It was (2-week cycles comprising 48 hours of infusion and 12 days of rest) for up to 12 cycles (24- weeks).
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Serum Glutamic-Pyruvic Transaminase (SGPT)	90 participants	110 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Serum Glutamic Oxaloacetic Transaminase (SGOT)	193 participants	174 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Alkaline Phosphatase	184 participants	201 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Calcium (hyper)	7 participants	9 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Calcium (hypo )	68 participants	70 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Glucose (hyper)	201 participants	207 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Glucose (hypo)	12 participants	9 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Granulocytes	1 participants	6 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Haemoglobin	216 participants	240 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Neutrophils	113 participants	199 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Neutrophils/Granulocytes	114 participants	202 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Platelets	168 participants	212 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Potassium (hyper)	17 participants	26 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Potassium (hypo)	68 participants	92 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Serum Albumin	116 participants	138 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Serum Creatinine	18 participants	32 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Sodium (hyper)	14 participants	21 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Sodium (hypo)	64 participants	73 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment Total Bilirubin	107 participants	95 participants
Number of Participants With Marked Post-baseline Laboratory Abnormalities by Trial Treatment White blood cell (WBC)	124 participants	205 participants

Adverse Events

XELOX

Serious events: 94 serious events

Other events: 302 other events

Deaths: 0 deaths

FOLFOX-4

Serious events: 97 serious events

Other events: 298 other events

Deaths: 0 deaths

Serious adverse events

Other adverse events

Additional Information

Roche Trial Information Hotline

F. Hoffmann-La Roche AG

Phone: +41 61 6878333

Email: [email protected]

Results disclosure agreements

Principal investigator is a sponsor employee The Study being conducted under this Agreement is part of the Overall Study. Investigator is free to publish in reputable journals or to present at professional conferences the results of the Study, but only after the first publication or presentation that involves the Overall Study. The Sponsor may request that Confidential Information be deleted and/or the publication be postponed in order to protect the Sponsor's intellectual property rights.
Publication restrictions are in place

Restriction type: OTHER