Background: OVO5/EORTC 55855, a study punitively refuting the value of CA-125 in the follow-up of ovarian cancer patients, has many deficiencies, including a heterogeneous ovarian cancer patient population, no control of initial treatment regimens, and no control of subsequent surgery or chemotherapeutic management for recurrence. Recent studies suggest a role for prompt surgery in selected cases of recurrent ovarian cancer with CA-125 elevations, a role for tamoxifen in managing rising CA-125 levels in patients without evidence of disease and the use of platinum doublets for treating recurrent platinum-sensitive disease, none of which were incorporated into OVo5/EORTC 55955.
Case: A patient with advanced stage ovarian cancer presenting with a CA-125 level of 2000 U/mL, who is initially treated with surgery followed by chemotherapy and has a normal CT scan and normal CA-125 at completion of her initial chemotherapy.
Conclusion: This patient remains at a very high risk for recurrence. I would continue to monitor this patient with serial CA-125 levels to identify recurrent cancer and consider initiating treatment before it is clinically obvious.
- CA-125 and recurrent disease
- Ovarian cancer
- OVO5/EORTC 55955
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