Comparison of Four Combination Chemotherapy Regimens Using Cisplatin in Treating Patients With Stage IVB, Recurrent, or Persistent Cancer of the Cervix

RECIST 1.0 defines complete response as the disappearance of all target lesions and non-target lesions and no evidence of new lesions documented by two disease assessments at least 4 weeks apart. Partial response is defined as at least a 30% decrease in the sum of longest dimensions (LD) of all target measurable lesions taking as reference the baseline sum of LD. There can be no unequivocal progression of non-target lesions and no new lesions. Documentation by two disease assessments at least 4 weeks apart is required. In the case where the ONLY target lesion is a solitary pelvic mass measured by physical exam, which is not radiographically measurable, a 50% decrease in the LD is required. These patients will have their response classified according to the definitions stated above.

Progression-free survival (PFS) was defined as the period from study entry until disease progression, death, or the last date of contact. Progression is defined according to RECIST v1.0 as at least a 20% increase in the sum of LD target lesions taking as reference the smallest sum LD recorded since study entry, the appearance of one or more new lesions, death due to disease without prior objective documentation of progression, global deterioration in health status attributable to the disease requiring a change in therapy without objective evidence of progression, or unequivocal progression of existing non-target lesions.

The FACT-Cx TOI is a scale for assessing general QOL of cervical cancer patients.consisting of three subscales: Physical Well Being (7 items), Functional Well Being (7 items), and Cervical Cancer subscale (15 items). Each item in the FACT-Cx TOI was scored using a 5-point scale (0=not at all; 1=a little bit; 2=somewhat; 3=quite a bit; 4=very much). For the negative statements (or questions), reversal was performed prior to score calculation. According to the FACIT measurement system, a subscale score was the summation of the individual item scores if more than 50% of subscale items were answered. When unanswered items existed, a subscale score was prorated by multiplying the mean of the answered item scores by the number of items in the subscale. The score is calculated as the sum of the subscale scores if more than 80% of the FACT-Cx TOI items provide valid answers and all of the component subscales have valid scores. The score ranges 0-116 with a large score suggesting better QOL.

Single item from the Brief Pain Inventory (BPI) assessing "worst pain" in the past 24 hours, on a 0-10 scale with a higher score indicating more pain than a low score.

The FACT/GOG-Ntx subscale contains 4 items. Each item was scored using a 5-point scale (0=not at all; 1=a little bit; 2=somewhat; 3=quite a bit; 4=very much). For the negative items, reversal was performed prior to score calculation. According to the FACIT measurement system, the Ntx score was the summation of the individual item scores if more than 50% of subscale items were answered. When unanswered items existed, a subscale score was prorated by multiplying the mean of the answered item scores by the number of items in the scale. The Ntx score ranges 0-16 with a large score suggests less neurotoxicity.