GOG-122
Whole-abdominal irradiation versus doxorubicin and cisplatin chemotherapy in advanced endometrial carcinoma (Gynecologic Oncology Group study 122)
Phase 3N = 422NCT00002493
- Population
- Stage III or IV endometrial carcinoma with a maximum of 2 cm of postoperative residual disease; 396 of 422 entered patients assessable
- Design
- Randomised phase 3 trial of whole-abdominal irradiation (WAI; 30 Gy in 20 fractions with a 15-Gy boost) versus doxorubicin 60 mg/m2 and cisplatin 50 mg/m2 every 3 weeks for seven cycles followed by one cycle of cisplatin (AP). 422 patients entered; 396 were assessable (202 WAI, 194 AP). Median age 63 years; 50% had endometrioid tumours. Median follow-up 74 months. The abstract does not designate a control arm; the control and experimental roles below follow the order of the comparison and are a data-model convention, not a statement by the authors.
- Arms
- Whole-abdominal irradiation (control, n = 202): Whole-abdominal irradiation 30 Gy in 20 fractions with a 15-Gy boost
- Doxorubicin and cisplatin (experimental, n = 194): Doxorubicin 60 mg/m2 and cisplatin 50 mg/m2 every 3 weeks for seven cycles, followed by one cycle of cisplatin
- People
- Randall ME, Gynecologic Oncology Group
PFSHR 0.71 (95% CI 0.55–0.91)Δ 60-month PFS+12 pointsOSHR 0.68 (95% CI 0.52–0.89)Δ 60-month OS+13 pointsΔ Deaths probably related to treatment+2 points
Show the numbers
| Endpoint | Analysis | Doxorubicin and cisplatin | Whole-abdominal irradiation | Effect |
|---|---|---|---|---|
| PFSAssessable patients (396)Progression-free survival; hazard ratio for progression adjusted for stage. The 60-month figures are the percentages predicted to be alive and disease free, adjusting for stage | primarymedian follow-up 74 monthsRandall 2006 | 50% at 5 y | 38% at 5 y | HR 0.71 (95% CI 0.55–0.91)P<.01Hazard ratio for progression adjusted for stage, favouring doxorubicin-cisplatin. 396 of 422 patients entered were assessable (202 whole-abdominal irradiation, 194 doxorubicin-cisplatin). |
| OSAssessable patients (396)Overall survival; death hazard ratio adjusted for stage. The 60-month figures are the percentages predicted to be alive, adjusting for stage | primarymedian follow-up 74 monthsRandall 2006 | 55% at 5 y | 42% at 5 y | HR 0.68 (95% CI 0.52–0.89)P<.01Stage-adjusted death hazard ratio favouring doxorubicin-cisplatin. |
| Deaths probably related to treatmentAssessable patients (396)Deaths to which treatment probably contributed | primaryRandall 2006 | 4% | 2% | Five patients with whole-abdominal irradiation and eight with doxorubicin-cisplatin. The abstract also reports greater acute toxicity with doxorubicin-cisplatin. |
| Endpoint | Analysis | Doxorubicin and cisplatin | Whole-abdominal irradiation | Effect |
|---|---|---|---|---|
| PFSAssessable patients (396)Progression-free survival; hazard ratio for progression adjusted for stage. The 60-month figures are the percentages predicted to be alive and disease free, adjusting for stage | primarymedian follow-up 74 monthsRandall 2006 | 50% at 5 y | 38% at 5 y | HR 0.71 (95% CI 0.55–0.91)P<.01Hazard ratio for progression adjusted for stage, favouring doxorubicin-cisplatin. 396 of 422 patients entered were assessable (202 whole-abdominal irradiation, 194 doxorubicin-cisplatin). |
| OSAssessable patients (396)Overall survival; death hazard ratio adjusted for stage. The 60-month figures are the percentages predicted to be alive, adjusting for stage | primarymedian follow-up 74 monthsRandall 2006 | 55% at 5 y | 42% at 5 y | HR 0.68 (95% CI 0.52–0.89)P<.01Stage-adjusted death hazard ratio favouring doxorubicin-cisplatin. |
| Deaths probably related to treatmentAssessable patients (396)Deaths to which treatment probably contributed | primaryRandall 2006 | 4% | 2% | Five patients with whole-abdominal irradiation and eight with doxorubicin-cisplatin. The abstract also reports greater acute toxicity with doxorubicin-cisplatin. |
Data table
| Endpoint | HR | 95% CI |
|---|---|---|
| PFS | 0.71 | 0.55–0.91 |
| OS | 0.68 | 0.52–0.89 |