A Study of Avastin (Bevacizumab) in Combination With Chemotherapy in Patients With Endocrine Tumors of the Gastrointestinal Tract.

PFS is defined as the interval between the date of start of treatment and the date of evaluation by the investigator of progressive disease or death from any cause. The progression was assessed according to Response Evaluation Criteria In Solid Tumors (RECIST) using medical imaging during the treatment period and by the investigators (confirmed by medical imaging) during the follow-up period. Data for participants who were lost to follow-up were censored at the date of last evaluation without progression. Data for participants who completed the study without an event of disease progression or death were censored at the date of the last visit or follow-up without progression.

PFS is defined as the interval between the date of start of treatment and the date of evaluation by the investigator of progressive disease or death from any cause. The progression was assessed according to RECIST using medical imaging during the treatment period and by the investigators (confirmed by medical imaging) during the follow-up period. Data for participants who were lost to follow-up were censored at the date of last evaluation without progression. Data for participants who completed the study without an event of disease progression or death were censored at the date of the last visit or follow-up without progression. Median PFS was estimated using the Kaplan-Meier method.

PFS is defined as the interval between the date of start of treatment and the date of evaluation by the investigator of progressive disease or death from any cause. The progression was assessed according to RECIST using medical imaging during the treatment period and by the investigators (confirmed by medical imaging) during the follow-up period. Data for participants who were lost to follow-up were censored at the date of last evaluation without progression. Data for participants who completed the study without an event of disease progression or death were censored at the date of the last visit or follow-up without progression.

Best overall response defined as best response recorded during the study as defined according to RECIST; performed by the investigator and by centralized review. Complete response (CR): complete disappearance of all target lesions and non-target disease. All lesions, both target and non-target, must have decreased to normal (short axis, less than [<]10 millimeters [mm]). No new lesions. Partial response (PR): greater than or equal to (≥)30 percent (%) decrease under baseline of the sum of diameters of all target lesions. The short axis was used in the sum for target nodes, while the longest diameter (LD) was used in the sum for all other target lesions. No unequivocal progression of non-target disease. No new lesions. Stable disease (SD): not qualifying for CR, PR, or Progressive Disease (PD). PD: at least a 20% increase in the sum of the LD of target lesions, taking as reference the smallest sum LD recorded since the treatment started or the appearance of 1 or more new lesions.

Determined only for those participants with an overall response (CR or PR) and was defined as the time interval between the response (CR or PR) and the date of progression or death from any cause. Data for participants who were lost to follow-up were censored at the date of last evaluation without progression. Data for participants who completed the study without an event of progression or death were censored at the data of last visit or follow-up without progression.

Determined only for those participants with an overall response (CR or PR) and was defined as the time interval between the response (CR or PR) and the date of progression or death from any cause. Data for participants who were lost to follow-up were censored at the date of last evaluation without progression. Data for participants who completed the study without an event of progression or death were censored at the data of last visit or follow-up without progression. Median duration of OR was estimated using the Kaplan-Meier method.

Duration of OR was determined only for those participants with an overall response of CR or PR and was defined as the time interval between the response (CR or PR) and the date of progression or death from any cause. Data for participants who were lost to follow-up were censored at the date of last evaluation without progression. Data for participants who completed the study without an event of progression or death were censored at the data of last visit or follow-up without progression.

Determined only for those participants with overall disease control (CR, PR or SD per RECIST) and was defined as the time interval between the first occurrence of disease control (CR, PR or SD) and the date of progression or death from any cause. Data for participants who were lost to follow-up were censored at the date of last evaluation without progression. Data for participants who completed the study without an event of progression or death were censored at the data of last visit or follow-up without progression.

Determined only for those participants with overall control disease (CR, PR, or SD per RECIST) and was defined as the time interval between the first occurrence of disease control (CR, PR or SD) and the date of progression or death from any cause. Data for participants who were lost to follow-up were censored at the date of last evaluation without progression. Data for participants who completed the study without an event of progression or death were censored at the data of last visit or follow-up without progression. Median time to event was estimated using the Kaplan-Meier method.

Duration of ODC was determined only for those participants with overall control disease (CR, PR, or SD per RECIST) and was defined as the time interval between the first occurrence of disease control (CR, PR, or SD) and the date of progression or death from any cause. Data for participants who were lost to follow-up were censored at the date of last evaluation without progression. Data for participants who completed the study without an event of progression or death were censored at the data of last visit or follow-up without progression.

OS was defined as the time from the first treatment administration to death from any cause. Data for participants who were lost to follow-up were censored at the date of last evaluation. Data for participants who were alive at the end of the study were censored at the date of last visit.

OS was defined as the time from the first treatment administration to death from any cause. Data for participants who were lost to follow-up were censored at the date of last evaluation. Data for participants who were alive at the end of the study were censored at the date of last visit. Median OS was estimated using the Kaplan-Meier method.

OS was defined as the time from the first treatment administration to death from any cause. Data for participants who were lost to follow-up were censored at the date of last evaluation. Data for participants who were alive at the end of the study were censored at the date of last visit.

EORTC QLQ-C30: included functional scales (physical, role, cognitive, emotional, and social), global health status, symptom scales (fatigue, pain, nausea/vomiting) and single items (dyspnoea, appetite loss, insomnia, constipation/diarrhea and financial difficulties). Most questions used 4-point scale (1 'Not at all' to 4 'Very much'; 2 questions used 7-point scale [1 'very poor' to 7 'Excellent']). Scores were averaged and transformed to 0-100 scale; higher score=better level of functioning or greater degree of symptoms.

EORTC QLQ-C30: included functional scales (physical, role, cognitive, emotional, and social), global health status, symptom scales (fatigue, pain, nausea/vomiting) and single items (dyspnoea, appetite loss, insomnia, constipation/diarrhea and financial difficulties). Most questions used 4-point scale (1 'Not at all' to 4 'Very much'; 2 questions used 7-point scale [1 'very poor' to 7 'Excellent']). Scores averaged, transformed to 0-100 scale; higher score=better level of functioning or greater degree of symptoms. Changes from baseline were categorized as follows: Very much worsening (less than [<]-20); Moderate worsening (greater than or equal to [≥]-20 to <-10); Little worsening (≥-10 to <-5); No change (≥-5 to less than or equal to [≤]5); Little improvement (>5 to ≤10); Moderate improvement (>10 to ≤20); and Very much improved (>20).

EORTC QLQ-C30: included functional scales (physical, role, cognitive, emotional, and social), global health status, symptom scales (fatigue, pain, nausea/vomiting) and single items (dyspnoea, appetite loss, insomnia, constipation/diarrhea and financial difficulties). Most questions used 4-point scale (1 'Not at all' to 4 'Very much'; 2 questions used 7-point scale [1 'very poor' to 7 'Excellent']). Scores averaged, transformed to 0-100 scale; for functional scores, a higher score represents a better level of functioning. For symptom scale scores a higher level represents a more severe level of symptoms.