A Randomized Registry Trial of Adjuvant Mitotane vs. Mitotane With Cisplatin/Etoposide After Primary Surgical Resection of Localized Adrenocortical Carcinoma With High Risk of Recurrence (ADIUVO-2 Trial)
This phase III trial studies how well mitotane alone works compared to mitotane with cisplatin and etoposide when given after surgery in treating patients with adrenocortical cancer that has a high risk of coming back (recurrence). Cortisol can cause the growth of adrenocortical tumor cells. Antihormone therapy, such as mitotane, may lessen the amount of cortisol made by the body. Drugs used in chemotherapy, such as cisplatin and etoposide, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. It is not yet known whether mitotane alone or mitotane with cisplatin and etoposide after surgery works better in treating patients with adrenocortical carcinoma.
• Have a histologically confirmed diagnosis of ACC (Weiss score of \>= 3). (LinWeiss-Bisceglia system will be used for oncocytic ACC).
• Have a high risk of relapse defined as: Stage I-III ACC (according to the European Network for the Study of Adrenal Tumors \[ENSAT\] classification) within 90 days of surgical resection of primary tumor with curative intent with either microscopically complete resection (R0, defined as no evidence of microscopic residual disease according to surgical reports, histopathology, and perioperative imaging), microscopically positive margins (R1), or undetermined margins (RX, based on surgical or pathological reports without unequivocal evidence of metastasis in the perioperative imaging). Each participating center will determine the pathological stages and resection margins AND Ki67 \> 10% (to be determined by an experienced pathologist in each participating center and preferably via quantitative imaging analysis).
• Have perioperative imaging (computed tomography \[CT\] with contrast, magnetic resonance imaging \[MRI\] of the chest/abdomen/pelvis, or fluorodeoxyglucose positron emission tomography \[FDG-PET\] CT) without unequivocal evidence of disease within 8 weeks before randomization. Patients with indeterminate non-specific nodules (\< 1 cm for soft tissue lesions and \< 1.5 cm in the short dimension for lymph nodes) will be permitted to participate in this study.
• Have an Eastern Cooperative Oncology Group (ECOG) performance status 0-2.
• Be able to comply with the protocol procedures.
• Provide written informed consent.