scholarly journals Article Commentary: The Role of Adjuvant Therapy in Gastrointestinal stromal Tumor after Operative Treatment

2009 ◽  
Vol 2 ◽  
pp. CGast.S3422
Author(s):  
Ka-Ho Lok
Keyword(s):  
High Risk ◽  
Adjuvant Therapy ◽  
Gastrointestinal Stromal Tumor ◽  
Operative Treatment ◽  
Stromal Tumor ◽  
Recurrence Free Survival ◽  
Free Survival

The treatment for localized advance gastrointestinal stromal tumor (GIST) is far from ideal. Up to 50% of patient developed post-operative recurrence and died within 5 years. Recently, imatinib was found to significantly improve recurrence-free survival in post-operative patients. The role of adjuvant therapy in high risk GIST patients is discussed.

scholarly journals Integrating Anatomical, Molecular and Clinical Risk Factors in Gastrointestinal Stromal Tumor of the Stomach

2021 ◽  
Author(s):  
Toto Hølmebakk ◽  
Anne Marit Wiedswang ◽  
Leonardo A. Meza-Zepeda ◽  
Ivar Hompland ◽  
Ingvild V. K. Lobmaier ◽  
...  
Keyword(s):  
High Risk ◽  
Gastrointestinal Stromal Tumor ◽  
Neoadjuvant Treatment ◽  
Population Based ◽  
Stromal Tumor ◽  
Gastric Gist ◽  
Tumor Rupture ◽  
Free Survival ◽  
Risk Patients ◽  
Upper Third

Abstract Background Adjuvant imatinib for 3 years is recommended to patients with high-risk gastrointestinal stromal tumor (GIST). Risk stratification is inaccurate, and risk assessments are further complicated by the increased use of neoadjuvant treatment. Anatomical criteria for prognostication have not been investigated. Methods Clinical, molecular, and anatomical variables were retrospectively studied in a population-based cohort of 295 patients with gastric GIST resected between 2000 and 2018. Gastric subsite was divided into the upper, middle, and lower thirds. Growth pattern was classified as luminal, exophytic, or transmural based on imaging and surgical reports. Results Of 113 tumors in the upper third of the stomach, 103 (91.2%) were KIT mutated, 7 (6.2%) were PDGFRA mutated, and 104 (92.0%) harbored genotypes sensitive to imatinib. Transmural tumors were strongly associated with a high mitotic index. Five-year recurrence-free survival (RFS) was 71% for patients with transmural tumors versus 96% with luminal or exophytic tumors (hazard ratio [HR] 8.45, 95% confidence interval [CI] 3.69–19.36; p < 0.001), and, in high-risk patients, 5-year RFS was 46% for patients with transmural tumors versus 83% with luminal or exophytic tumors (HR 4.47, 95% CI 1.71–11.66; p = 0.001). Among 134 patients with tumors > 5 cm, there were 29 recurrences. Only five patients with exophytic or luminal tumors had recurrent disease, of whom four had tumor rupture. Five-year RFS for patients with exophytic/luminal tumors >5 cm without rupture was 98%. Conclusions In the upper third, over 90% of tumors were sensitive to imatinib. Patients with exophytic or luminal tumors without rupture, irrespective of size, had an excellent prognosis and may not benefit from adjuvant therapy.

Adjuvant chemotherapy in early-stage endometrioid endometrial cancer with >50% myometrial invasion and negative lymph nodes

2021 ◽  
Vol 31 (4) ◽  
pp. 537-544
Author(s):  
Francesco Multinu ◽  
Simone Garzon ◽  
Amy L Weaver ◽  
Michaela E. McGree ◽  
Enrico Sartori ◽  
...  
Keyword(s):  
Endometrial Cancer ◽  
High Risk ◽  
Adjuvant Chemotherapy ◽  
Early Stage ◽  
Myometrial Invasion ◽  
Recurrence Free Survival ◽  
Free Survival ◽  
Endometrioid Endometrial Cancer ◽  
Negative Lymph Nodes

ObjectiveThe role of adjuvant chemotherapy as an addition or alternative to radiotherapy for early-stage high-risk endometrioid endometrial cancer is controversial. This study aimed to investigate the role of adjuvant chemotherapy in early-stage high-risk endometrioid endometrial cancer.MethodsWe identified patients with stage I or II endometrioid grade 2 or 3 endometrial cancer with myometrial invasion >50% and negative lymph nodes after pelvic with or without para-aortic lymphadenectomy at four institutions (USA and Italy). Associations between chemotherapy and cause-specific and recurrence-free survival were assessed with Cox proportional hazards models. Hematogenous, peritoneal, and lymphatic recurrences were defined as 'non-vaginal'.ResultsWe identified 329 patients of mean (SD) age 66.4 (9.8) years. The median follow-up among those alive was 84 (IQR 44–133) months. The 5-year cause-specific survival was 86.1% (95% CI 82.0% to 90.4%) and the 5-year recurrence-free survival was 82.2% (95% CI 77.9% to 86.8%). Stage II (vs stage IB) was associated with poorer cause-specific and recurrence-free survival. A total of 58 (90.6%) of 64 patients who had chemotherapy had 4–6 cycles of platinum-based regimen. In adjusted analysis, we did not observe a statistically significant improvement in cause-specific survival (HR 0.34; 95% CI 0.11 to 1.03; p=0.06) or non-vaginal recurrence-free survival (HR 0.36; 95% CI 0.12 to 1.08; p=0.07) with adjuvant chemotherapy. Sixteen of 18 lymphatic recurrences (88.9%; 3/5 pelvic, all 13 para-aortic) were observed in the 265 patients who did not receive adjuvant chemotherapy. Among stage II patients, no deaths (100% 5-year recurrence-free survival) were observed in the eight patients who received adjuvant chemotherapy compared with 66% 5-year recurrence-free survival in the 34 patients who did not.ConclusionAlthough we observed that adjuvant chemotherapy was associated with improved oncologic outcomes in early-stage high-risk endometrioid endometrial cancer, the associations did not meet conventional levels of statistical significance. Further research is warranted in this relatively uncommon subgroup of patients.

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