This preprint is under consideration at Cancer Cell International. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
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Primary research
Xiuhua Zhang
Nanjing Medical University Second Affiliated Hospital
Corresponding Author
ORCiD: https://orcid.org/0000-0003-1580-4768
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background: Data on the management and outcome of gastrointestinal stromal tumors (GISTs) in elderlypatients are scant due to their poor representation in clinical trials.
Methods:In total, 1379 elderly patients (≥65 years) histologically confirmed GIST between2010 and 2016 were enrolled from the Surveillance, Epidemiology, and End Results (SEER) database.
Results: As a result,surgery alone was the predominant treatment used in both age groups. Patients aged ≥75 years who underwent surgery alone had a median survival of 69 months, chemotherapy alone 51 months, surgery plus chemotherapy 60 months, and no therapy 51 months. While among patients aged 65-74 years, the median OS was not reached (NR), 49, 83, and NR, separately. Besides, C-indexes for the OS nomogram in the training set and validation set were0.771 and 0.761, respectively. Of importance, the predictive model displayed a comparable result to the 8th American Joint Committee on Cancer TNM staging system (p＜0.05), demonstrating improved model discrimination.
Conclusions: For elderly patients with GISTs, surgery alone or surgery plus chemotherapy seemed feasible and effective, conferring potential survival benefits even in very elderly patients. Moreover, this simple-to-use nomogram may assist clinicians in treatment decision-making and effectively predict 3- and 5-year survival.
Keywords
elderlygastrointestinal stromal tumors, treatment patterns, SEER, nomogram, OS
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This preprint is under consideration at Cancer Cell International. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Primary research
Xiuhua Zhang
Nanjing Medical University Second Affiliated Hospital
Corresponding Author
ORCiD: https://orcid.org/0000-0003-1580-4768
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 02 Jul, 2020
No community comments so far
Submission checks complete
On 01 Jul, 2020
First submitted
On 30 Jun, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Cancer Biology
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background: Data on the management and outcome of gastrointestinal stromal tumors (GISTs) in elderlypatients are scant due to their poor representation in clinical trials.
Methods:In total, 1379 elderly patients (≥65 years) histologically confirmed GIST between2010 and 2016 were enrolled from the Surveillance, Epidemiology, and End Results (SEER) database.
Results: As a result,surgery alone was the predominant treatment used in both age groups. Patients aged ≥75 years who underwent surgery alone had a median survival of 69 months, chemotherapy alone 51 months, surgery plus chemotherapy 60 months, and no therapy 51 months. While among patients aged 65-74 years, the median OS was not reached (NR), 49, 83, and NR, separately. Besides, C-indexes for the OS nomogram in the training set and validation set were0.771 and 0.761, respectively. Of importance, the predictive model displayed a comparable result to the 8th American Joint Committee on Cancer TNM staging system (p＜0.05), demonstrating improved model discrimination.
Conclusions: For elderly patients with GISTs, surgery alone or surgery plus chemotherapy seemed feasible and effective, conferring potential survival benefits even in very elderly patients. Moreover, this simple-to-use nomogram may assist clinicians in treatment decision-making and effectively predict 3- and 5-year survival.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
This is a list of supplementary files associated with this preprint. Click to download.
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