scholarly journals The Impact of Dose on Overall Survival in Unresectable Hepatocellular Carcinoma Treated With Stereotactic Body Radiation Therapy

Author(s):  
A.Y. Hammad ◽  
R.K. Schmid ◽  
B.A. Erickson ◽  
T.C. Gamblin ◽  
J.R. Robbins
2017 ◽  
Vol 35 (15_suppl) ◽  
pp. 4080-4080
Author(s):  
Feng Ming Kong ◽  
Yong Zang ◽  
Wenhu Pi ◽  
David Long ◽  
Susannah Ellsworth ◽  
...  

4080 Background: Stereotactic Body Radiation Therapy (SBRT) has emerged as a viable treatment option in patients with hepatocellular carcinoma (HCC). This study aimed to compare survival outcomes after SBRT with other front line local treatments for HCC. Methods: This is a retrospective analysis of patients identified through our cancer registry from 2000 to 2016. Patients treated with any local therapy alone were eligible: SBRT, surgery, conventional external beam radiation (CEBRT), and other local therapies including brachytherapy. Patients treated with combined therapies such as SBRT plus liver transplant were excluded. The primary endpoint was overall survival which was estimated from the time of diagnosis. Differences between the groups were compared using log-rank test. The data are presented as median (95%CI). Results: A total of 756 patients with a median follow-up of 45 months (mo) met the selection criteria: 116, 380, 43, and 217 patients received SBRT, surgery, CEBRT, and other local treatment, respectively. Median age was 61, 60, 61 and 60 years, respectively. The median overall survival/3 year overall survival rate were 49 (32-66) mo /53% (44-65%) for patients treated with SBRT, which were not significantly different from 75 (57-94) mo /63% (58-69%) of surgery (p = 0.27), non-significantly better than 22 (13-31) mo /41% (27-60%) of CEBRT (p = 0.13), significantly better than 15 (13-20) mo /26% (20-34%) of other local treatments (p = 3×10-7). After adjusting for significant prognostic factors including age, race, status of tobacco abuse, history of alcohol use, tumor size, histology grade and stage, the survival outcomes of SBRT remained to be insignificantly different from surgery (HR = 0.8, p = 0.2), have a trend of significant difference from CEBRT (HR = 1.4, p = 0.1) and remarkably superior to that of other local treatments (HR = 1.8, p = 2×10-4). Conclusions: This study suggests that SBRT is an excellent front line option for HCC, potentially comparable to surgical resection and associated with longer survival than other front line local treatments. Randomized studies are needed to validate these findings.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. e15592-e15592
Author(s):  
Ting-Shi Su ◽  
Shi-Xiong Liang ◽  
Lequn Li

e15592 Background: Stereotactic body radiation therapy (SBRT) has become a treatment for hepatocellular carcinoma (HCC) from palliative to radical treatment. But there is no clear evidence of a dose-survival relationship among commonly-utilized radiation therapy schedules. We aimed to determine the comparative effectiveness of different SBRT dosing regimens for HCC. Methods: The dataset collected from Guangxi Zhuang Autonomous Region in China was used. In this large single-centered retrospective study, 604 patients treated with SBRT were included from 2011 to 2017. Biologically effective dose (BED10) and equivalent dose in 2 Gy fractions (EQD2) were assumed at an α/β ratio of 10. Overall survival (OS) was the primary endpoint. OS rates were estimated using Kaplan–Meier curves with a log-rank test. Results: The median tumor size was 5.2 cm (interquartile range [IQR], 1.1–21.0 cm). Median follow-up was 21 months in surviving patients (IQR, 3–82 months). The 1-, 3-, and 5-year OSs were 87.1%, 64.7%, and 60.9% in Barcelona Clinic Liver Cancer (BCLC)-A group; 72.9%, 37.2%, and 30.7% in BCLC-B group; and 44.3%, 18.6%, and 12.8% in BCLC-C group; respectively. Increasing the RT dose was associated with improved overall survival. Stereotactic ablative radiotherapy (SART) with BED10≥100 Gy, SBRT with EQD2≥74 Gy and BED10 < 100 Gy, and stereotactic conservative radiotherapy (SCRT) with EQD2< 74 Gy have 3 separate curves for long-term survival post-SBRT. On multivariate analysis, Clinical factors associated with improved OS were BED, alanine aminotransferase (ALT) , and BCLC stage. On the subgroup analysis, BED10 ≥100 Gy was still beneficial against HCCs of BCLC stage A, B, and C. Conclusions: Individualized dose for SBRT are recommended for the treatment of HCC due to different degrees of cirrhosis and liver volume. The RT dose was classified into three levels. If tolerated by normal tissue, SART with BED10 ≥100 Gy as a first-line ablative dose or SBRT with EQD2 ≥74 Gy as a second-line radical dose is recommended. Otherwise, SCRT with EQD2< 74 Gy is recommended as palliative irradiation.


2017 ◽  
Vol 4 (1) ◽  
pp. 31 ◽  
Author(s):  
Supriya Chopra ◽  
Nitin Shetty ◽  
Mahesh Goel ◽  
Reena Engineer ◽  
Karthick Rajamanickam ◽  
...  

<p class="abstract"><strong>Background:</strong> Vast majority of patients with hepatocellular carcinoma (HCC) present with unresectable disease. In the last decade results of randomized trials and subsequent meta-analyses established trans-arterial chemoembolization (TACE) as standard of care in patients with Barcelona clinic liver cancer (BCLC) stage B. However, there is clearly a need to investigate additional therapeutic options that would consolidate the initial response to TACE. A recent meta-analyses concluded that addition of radiation to TACE had 10-35% improvement in two-year overall survival, however as results of meta-analyses were based on small studies, the need for conducting a high quality randomized study was highlighted. The present study is designed to investigate the role of high dose stereotactic radiation as consolidation therapy after TACE in patients with non-metastatic unresectable HCC<span lang="EN-IN">. </span></p><p class="abstract"><strong>Methods:</strong> Patients diagnosed with non-metastatic unresectable HCC with BCLC stage B/A (medically inoperable) and Child-Pugh’s score A-B7 will be eligible. The trial will randomize patients into TACE alone arm or TACE followed by stereotactic body radiation therapy (SBRT). The primary aim is to compare in-field progression free survival (PFS) in phase II and overall survival in phase III between the control (TACE) and intervention arm (TACE+SBRT). The secondary aim is to compare cause specific survival, imaging response and quality of life in control and intervention arms<span lang="EN-IN">.</span></p><p class="abstract"><strong>Results:</strong> First analysis of the study has been planned when patient accrued under phase II study have completed 1 year follow up<span lang="EN-IN">.  </span></p><p class="abstract"><strong><span lang="NL"><br /></span></strong></p><p class="abstract"><strong><span lang="NL">Trail Registration: </span></strong><span lang="NL">Clinicaltrials.gov,NCT02794337</span></p>


2019 ◽  
Vol 37 (4_suppl) ◽  
pp. 350-350 ◽  
Author(s):  
Ashwathy Susan Mathew ◽  
Eshetu G. Atenafu ◽  
Dawn Owen ◽  
Chris Maurino ◽  
Anthony M. Brade ◽  
...  

350 Background: To report outcomes of pooled data from patients with early stage hepatocellular carcinoma (HCC) treated with stereotactic body radiation therapy (SBRT) at two North American Institutions. Methods: An IRB approved collaborative review of patients with HCC treated with radical intent SBRT was conducted. Inclusion criteria included patients with Stage I-IIIA HCC (UICC/AJCC 7th Ed.) treated with SBRT (≥ 4.5 Gy/ fraction) from June 2003 until Dec 2016. Patients who were treated with SBRT were ineligible for resection, percutaneous ablative or hepatic intravascular therapies. Patients with vascular invasion and those treated with palliative intent (e.g. HCC rupture) were excluded. Overall survival, local control and toxicity of treatment were reviewed retrospectively. Results: Of 310 eligible patients, 23% were Child-Pugh (CP) class B/C (21%/2%), and 40% had failed prior liver directed therapies. The median HCC diameter was 2.4 cm (range 0.5-18.1 cm), and the median prescribed dose was 39 Gray (Gy) in 5 fractions (range: 14 - 60 Gy in 2-6 fractions). Median BED was 78.75 Gy (Range: 23.8-180.0 Gy). 8.4% of patients underwent liver transplant after SBRT. Local control at 1, 3 and 5 years was 91.5%, 82.6% and 82.6%. On multivariable analysis (MVA), the use of breath-hold motion management, but not T stage, size or dose, was significantly associated with local control (p = 0.0098). The 1, 3, and 5 year overall survival (OS) was 77.3%, 37.9% and 23.5%. Factors associated with improved OS on MVA included baseline CP A score (HR = 0.58, p < 0.0045), AFP < 10 µg/L (HR = 0.66, p = 0.0094), and transplant post SBRT (HR = 0.05, p < 0.0001). The median survival of CP A vs. B/C patients was 30.3 and 17.6 months respectively. CTCAE (v4.0) grade 3 or higher luminal gastrointestinal organ toxicity occurred in 2.5% of patients, while a decline in CP score ≥ 2 points was seen in 16.7% of patients at 3 months post SBRT. Grade 3 and above elevated liver enzymes were seen in 12.6% and 8.1% of patients at baseline and at 3 months post SBRT. Conclusions: Similar to Asian series, this North American pooled analysis found high sustained local control and excellent survival in patients with early stage HCC treated with SBRT.


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