Rate of complete and durable responses of intralesional therapy with talimogene laherparepvec for stage IIIB-IVM1a melanoma and association with tumor load.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e22089-e22089
Author(s):  
Emma H.A. Stahlie ◽  
Viola Franke ◽  
Charlotte L. Zuur ◽  
Willem M.C. Klop ◽  
Bernies Van Der Hiel ◽  
...  
Keyword(s):  
Prognostic Factors ◽  
Prediction Model ◽  
Tumor Size ◽  
Response Rate ◽  
Complete Response ◽  
Stage Iiib ◽  
Talimogene Laherparepvec ◽  
Durable Response ◽  
Size Type

e22089 Background: Talimogene laherparepvec (T-VEC) is a genetically modified herpes simplex type 1 virus, which is used as an oncolytic immunotherapy in stage IIIB-IVM1a melanoma patients. It is known to be an effective therapy for injectable cutaneous, subcutaneous and nodal melanoma lesions, as approved by the European Medicines Agency (EMA). Combination therapy is not yet approved by EMA pending the results of the phase 3 Masterkey-265 trial. The objective of the current study was to identify prognostic factors for achieving a complete response (CR) that can be used to select patients for treatment with T-VEC monotherapy. Methods: Patients with stage IIIB-IVM1a melanoma, treated with T-VEC at the Netherlands Cancer Institute between 2016-12 and 2019-05 with a follow-up time > 6 months, were included. Data was collected on baseline characteristics, responses and adverse events (AEs). Durable response rate (DRR) was defined as the percent of patients with a CR or partial response (PR) maintained continuously > 6 months. Univariable analyses were conducted and a prediction model was developed to identify prognostic factors associated with complete response. Results: For this study, a total of 71 patients were included with a median follow-up of 16.1 months. The median age was 70 years (range: 35-90). As best response, 47 patients (66%) had a CR and 10 patients (14%) had a PR, resulting in an overall response rate of 80%. Twenty-one patients (30%) stopped treatment because of progressive disease and sixteen patients (23%) developed a recurrence during follow-up after achieving a PR or CR. Median duration of CR was 11 months. The durable response rate was 42%. Grade 1-2 AEs occurred in almost every patient. Tumor size, type of metastases, previous treatment with systemic therapy and stage (8Th AJCC) were independent prognostic factors for achieving a CR and for progression-free survival. Achieving a CR was associated with a reduced risk of death. The prediction model includes tumor size, type of metastases (only cutaneous vs. subcutaneous (+/- cutaneous) vs. nodal (+/- cutaneous/subcutaneous)) and number of lesions as predictors. Conclusions: This study shows that intralesional T-VEC monotherapy for stage IIIB-IVM1a melanoma is able to achieve high complete and durable response rates. The prediction model shows that use of T-VEC in patients with less tumor burden is associated with better outcomes, suggesting T-VEC should perhaps be used earlier in the course of the disease.

A phase II evaluation of the combination of paclitaxel protein-bound and carboplatin in the first-line treatment of advanced non-small cell lung cancer (NSCLC)

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 7127-7127 ◽  
Author(s):  
J. P. Allerton ◽  
C. T. Hagenstad ◽  
R. T. Webb ◽  
G. B. Smith ◽  
R. Birch ◽  
...  
Keyword(s):  
Response Rate ◽  
Performance Status ◽  
Metastatic Breast ◽  
Stage Iv ◽  
Complete Response ◽  
Stage Iiib ◽  
Ecog Performance Status ◽  
Kaplan Meier ◽  
Experienced Grade

7127 Background: Abraxane (A) is a cremophor free, albumin-bound nanoparticle of paclitaxel (P) approved for the treatment of metastatic breast cancer. Belani et al. (JCO 21: 2933–2939, 2003) reported that P 100 mg/m2 days 1, 8 and 15 q 28 days with C AUC 6 on day 1 led to a 32% response rate in 132 patients (pts) with NSCLC. The median time to progression (TTP) was 35 weeks (wks) for stage IIIB and 29 wks for stage IV. Methods: This study was designed to determine if substituting A for P at an identical dose would lead to an improved response rate, TTP or decreased toxicity. Results: Fifty-six pts with stage IIIB/IV NSCLC previously untreated with chemotherapy were enrolled. The median age was 66 (range 37 - 83); 37 were male and median ECOG performance status was 1 (range 0–2). Thirteen pts were stage IIIB. Metastases included bone (17), liver (7), brain (2) and lymph nodes (16). Currently a total of 239 cycles of therapy have been administered with a median of 4 (range 1–8) cycles per pt. In 194 (81%) full dose A was administered on days 1, 8 and 15. The table below shows toxicities compared to P: Seven pts (13%) experienced grade (G) 1 neuropathy and 3 pts (5%) experienced G 2 neuropathy. Five pts were inevaluable for response due to removal from study after <2 cycles of treatment (2 died from progressive disease, 2 because of toxicity - thrombocytopenia and neutropenia - and 1 refused). Of 51 evaluable pts 1 (2%) had a complete response and 23 patients (45%) achieved a partial response. Four of 10 evaluable stage IIIB pts obtained a PR. Twenty-one pts were stable for at least 12 weeks of whom twenty remain stable at 12–29 weeks and one progressed at 23 weeks. A total of 13 pts have progressed and 3 pts have died. The Kaplan-Meier estimate of median TTP is 23 wks and maximum follow up is 34 wks. Conclusions: We conclude that combining A and C is tolerable and active in the treatment of newly-diagnosed NSCLC and antitumor activity compares favorably to that of P/C. Further studies are warranted in this population. [Table: see text] [Table: see text]

scholarly journals Talimogene laherparepvec upregulates immune-cell populations in non-injected lesions: findings from a phase II, multicenter, open-label study in patients with stage IIIB–IVM1c melanoma

2021 ◽  
Vol 9 (3) ◽  
pp. e001621
Author(s):  
Josep Malvehy ◽  
Igor Samoylenko ◽  
Dirk Schadendorf ◽  
Ralf Gutzmer ◽  
Jean-Jacques Grob ◽  
...  
Keyword(s):  
T Cells ◽  
T Cell ◽  
Cell Density ◽  
Phase Ii ◽  
Response Rate ◽  
Objective Response ◽  
Stage Iiib ◽  
Talimogene Laherparepvec ◽  
Durable Response ◽  
Programmed Death

BackgroundTalimogene laherparepvec (T-VEC), an oncolytic virus, was designed to selectively replicate in and lyse tumor cells, releasing tumor-derived antigen to stimulate a tumor-specific immune response.MethodsIn this phase II study in patients with unresectable stage IIIB–IV melanoma, we evaluated non-injected lesions to establish whether baseline or change in intratumoral CD8+ T-cell density (determined using immunohistochemistry) correlated with T-VEC clinical response.ResultsOf 112 enrolled patients, 111 received ≥1 dose of T-VEC. After a median follow-up of 108.0 weeks, objective/complete response rates were 28%/14% in the overall population and 32%/18% in patients with stage IIIB–IVM1a disease. No unexpected toxicity occurred. Baseline and week 6 change from baseline CD8+ T-cell density results were available for 91 and 65 patients, respectively. Neither baseline nor change in CD8+ T-cell density correlated with objective response rate, changes in tumor burden, duration of response or durable response rate. However, a 2.4-fold median increase in CD8+ T-cell density in non-injected lesions from baseline to week 6 was observed. In exploratory analyses, multiparameter immunofluorescence showed that after treatment there was an increase in the proportion of infiltrating CD8+ T-cells expressing granzyme B and checkpoint markers (programmed death-1, programmed death-ligand 1 (PD-L1) and cytotoxic T-lymphocyte antigen-4) in non-injected lesions, together with an increase in helper T-cells. Consistent with T-cell infiltrate, we observed an increase in the adaptive resistance marker PD-L1 in non-injected lesions.ConclusionsThis study indicates that T-VEC induces systemic immune activity and alters the tumor microenvironment in a way that will likely enhance the effects of other immunotherapy agents in combination therapy.Trial registration numberNCT02366195.

OPTiM: A randomized phase III trial of talimogene laherparepvec (T-VEC) versus subcutaneous (SC) granulocyte-macrophage colony-stimulating factor (GM-CSF) for the treatment (tx) of unresected stage IIIB/C and IV melanoma.

2013 ◽  
Vol 31 (18_suppl) ◽  
pp. LBA9008-LBA9008 ◽  
Author(s):  
Robert Hans Ingemar Andtbacka ◽  
Frances A. Collichio ◽  
Thomas Amatruda ◽  
Neil N. Senzer ◽  
Jason Chesney ◽  
...  
Keyword(s):  
Interim Analysis ◽  
Response Rate ◽  
Objective Response ◽  
Distant Metastases ◽  
Complete Response ◽  
Stage Iiib ◽  
Phase Iii ◽  
Durable Response ◽  
Phase Iii Trial ◽  
Gm Csf

LBA9008 Background: T-VEC is an oncolytic immunotherapy (OI) derived from herpes simplex virus type-1 designed to selectively replicate within tumors and to produce GM-CSF to enhance systemic antitumor immune responses. OPTiM is a randomized, phase III trial of T-VEC or GM-CSF in patients (pts) with unresected melanoma with regional or distant metastases. We report the primary results of the first phase III study of OI. Methods: Key criteria: age ≥18 yrs; ECOG ≤1; unresectable melanoma stage IIIB/C or IV; injectable cutaneous, SC, or nodal lesions; LDH ≤1.5X upper limit of normal; ≤3 visceral lesions (excluding lung), none >3 cm. Pts were randomized 2:1 to intralesional T-VEC (initially ≤ 4 mL x106 pfu/mL then after 3 wks, ≤ 4 mL x108 pfu/mL Q2W) or SC GM-CSF (125 µg/m2qd x 14 days q28d). The primary endpoint was durable response rate (DRR): partial or complete response (CR) continuously for ≥6 mos starting within 12 mos. Responses were per modified WHO by blinded central review. A planned interim analysis of overall survival (OS; key secondary endpoint) was performed. Results: 436 pts are in the ITT set: 295 (68%) T-VEC, 141 (32%) GM-CSF. 57% were men; median age was 63 yrs. Stage distribution was: IIIB/C 30%, IVM1a 27%, IVM1b 21%, IVM1c 22%. Objective response rate with T-VEC was 26% (95% CI: 21%, 32%) with 11% CR, and with GM-CSF was 6% (95% CI: 2%, 10%) with 1% CR. DRR for T-VEC was 16% (95% CI: 12%, 21%) and 2% for GM-CSF (95% CI: 0%, 5%), p<0.0001. DRR by stage (T-VEC, GM-CSF) was IIIB/C (33%, 0%), M1a (16%, 2%), M1b (3%, 4%), and M1c (8%, 3%). Interim OS showed a trend in favor of T-VEC; HR 0.79 (95% CI: 0.61, 1.02). Most common adverse events (AEs) with T-VEC were fatigue, chills, and pyrexia. Serious AEs occurred in 26% of T-VEC and 13% of GM-CSF pts. No ≥ grade 3 AE occurred in ≥ 3% of pts in either arm. Conclusions: T-VEC demonstrated both a statistically significant improvement in DRR over GM-CSF in pts with unresectable stage IIIB-IV melanoma and a tolerable safety profile; an interim analysis showed a trend toward improved OS. T-VEC represents a novel potential tx option for melanoma with regional or distant metastases. Clinical trial information: NCT00769704.

Talimogene Laherparepvec Improves Durable Response Rate in Patients With Advanced Melanoma

2015 ◽  
Vol 33 (25) ◽  
pp. 2780-2788 ◽  
Author(s):  
Robert H.I. Andtbacka ◽  
Howard L. Kaufman ◽  
Frances Collichio ◽  
Thomas Amatruda ◽  
Neil Senzer ◽  
...  
Keyword(s):  
Overall Response Rate ◽  
Response Rate ◽  
Objective Response ◽  
Stage Iiib ◽  
Phase Iii ◽  
Talimogene Laherparepvec ◽  
Durable Response ◽  
Overall Response ◽  
Gm Csf ◽  
Oncolytic Immunotherapy

Purpose Talimogene laherparepvec (T-VEC) is a herpes simplex virus type 1–derived oncolytic immunotherapy designed to selectively replicate within tumors and produce granulocyte macrophage colony-stimulating factor (GM-CSF) to enhance systemic antitumor immune responses. T-VEC was compared with GM-CSF in patients with unresected stage IIIB to IV melanoma in a randomized open-label phase III trial. Patients and Methods Patients with injectable melanoma that was not surgically resectable were randomly assigned at a two-to-one ratio to intralesional T-VEC or subcutaneous GM-CSF. The primary end point was durable response rate (DRR; objective response lasting continuously ≥ 6 months) per independent assessment. Key secondary end points included overall survival (OS) and overall response rate. Results Among 436 patients randomly assigned, DRR was significantly higher with T-VEC (16.3%; 95% CI, 12.1% to 20.5%) than GM-CSF (2.1%; 95% CI, 0% to 4.5%]; odds ratio, 8.9; P < .001). Overall response rate was also higher in the T-VEC arm (26.4%; 95% CI, 21.4% to 31.5% v 5.7%; 95% CI, 1.9% to 9.5%). Median OS was 23.3 months (95% CI, 19.5 to 29.6 months) with T-VEC and 18.9 months (95% CI, 16.0 to 23.7 months) with GM-CSF (hazard ratio, 0.79; 95% CI, 0.62 to 1.00; P = .051). T-VEC efficacy was most pronounced in patients with stage IIIB, IIIC, or IVM1a disease and in patients with treatment-naive disease. The most common adverse events (AEs) with T-VEC were fatigue, chills, and pyrexia. The only grade 3 or 4 AE occurring in ≥ 2% of T-VEC–treated patients was cellulitis (2.1%). No fatal treatment-related AEs occurred. Conclusion T-VEC is the first oncolytic immunotherapy to demonstrate therapeutic benefit against melanoma in a phase III clinical trial. T-VEC was well tolerated and resulted in a higher DRR (P < .001) and longer median OS (P = .051), particularly in untreated patients or those with stage IIIB, IIIC, or IVM1a disease. T-VEC represents a novel potential therapy for patients with metastatic melanoma.

429 Long-term analysis of MASTERKEY-265 phase 1b trial of talimogene laherparepvec (T-VEC) plus pembrolizumab in patients with unresectable stage IIIB-IVM1c melanoma

2020 ◽  
Vol 8 (Suppl 3) ◽  
pp. A454-A454
Author(s):  
Georgina Long ◽  
Reinhard Dummer ◽  
Douglas Johnson ◽  
Olivier Michielin ◽  
Salvador Martin-Algarra ◽  
...  
Keyword(s):  
Pigment Cell ◽  
Objective Response ◽  
Stage Iiib ◽  
List Type ◽  
Talimogene Laherparepvec ◽  
Unresectable Stage ◽  
Long Term Follow Up ◽  
Phase 1B

BackgroundPrevious findings from the MASTERKEY-265 phase 1b study showed that the combination of T-VEC and pembrolizumab was well tolerated and produced a high complete response (CR) rate of 43% in patients with advanced melanoma.1 The 3-year progression-free survival (PFS) and overall survival (OS) rates at that time were 53.6% and 71%, respectively. Here, we report the results of the long-term follow-up efficacy analyses.MethodsThe MASTERKEY-265 phase 1b trial (NCT02263508) was an open-label, single-arm study that enrolled patients who had unresectable, stage IIIB-IVM1c melanoma with injectable, measurable lesions and no prior systemic treatment. T-VEC was administered intralesionally at the approved dosing starting day 1 of week 1. Pembrolizumab (200 mg) was administered intravenously Q2W beginning on day 1 of week 6. The maximum treatment period was 2 years. The primary endpoint was dose-limiting toxicities; key secondary endpoints included objective response rate and PFS per modified irRC, OS, and safety.ResultsAs of the data cutoff (Mar 2, 2020), all 21 patients enrolled were off treatment; 6 died and 15 are in long-term follow-up. The median follow-up time was 58.6 months (range: 1.4–61.6). The CR rate remained 43% (9/21 patients). Twelve of the 13 responders (92.3%) are still in response, including all 9 patients with a CR. Median duration of response was not reached (range: 2.8+–54.3+ months). Median PFS and OS were not reached at the data cutoff. KM estimates of 4-year PFS and OS rates were 55.9% and 71.4%, respectively, which have held stable since the 3-year analysis. Patients who achieved a CR or partial response had better OS (p=0.0056) compared to those who did not respond. Median OS for non-responders was 24.4 months and was not reached for responders. No additional safety signals were detected.ConclusionsAt almost 5 years of follow-up, median PFS and OS were not reached for patients treated with the combination of T-VEC and pembrolizumab in this phase 1b study of unresectable metastatic melanoma. 92% of responders remained in response with improved OS observed in responders compared with non-responders. The corresponding randomized phase 3 trial has completed enrollment and is currently ongoing.Trial RegistrationNCT02263508Ethics ApprovalThe study was approved by the Ethics Board of each institution involved in this study and can be produced upon request.ReferenceLong G, Dummer R, Andtbacka R, et al. Follow-up analysis of MASTERKEY-265 Phase 1b (ph1b) trial of talimogene laherparepvec (T-VEC) in combination (combo) with pembrolizumab (pembro) in patients (pts) with unresectable stage IIIB–IVM1c melanoma (MEL). Pigment Cell Melanoma Res 2019;32:133–134.

Pathological prognostic factors in stage I (T1N0M0) and stage II (T1N1M0) breast carcinoma: a study of 644 patients with median follow-up of 18 years.

1989 ◽  
Vol 7 (9) ◽  
pp. 1239-1251 ◽  
Author(s):  
P P Rosen ◽  
S Groshen ◽  
P E Saigo ◽  
D W Kinne ◽  
S Hellman
Keyword(s):  
Prognostic Factors ◽  
Breast Carcinoma ◽  
Local Recurrence ◽  
Median Survival ◽  
Tumor Size ◽  
Stage I ◽  
Axillary Lymph ◽  
Axillary Lymph Node Metastases ◽  
Systemic Recurrence

Prognostic factors have been examined in 644 patients with tumor-node-metastasis (TNM) stage T1 breast carcinoma treated by mastectomy and followed for a median of 18.2 years. Overall, 148 patients (23%) died of recurrent breast carcinoma. Eighteen (3%) were alive with recurrent disease and 478 (74%) were alive or died of other causes without recurrence. Unfavorable clinicopathologic features were larger tumor size (1.1 to 2.0 cm v less than or equal to 1 cm), perimenopausal menstrual status, the number of axillary lymph node metastases, poorly differentiated grade, presence of lymphatic tumor emboli (LI) in breast tissue near the primary tumor, blood vessel invasion (BVI), and an intense lymphoplasmacytic reaction around the tumor. Median survival after recurrence for the entire series was 2 years. This was not significantly influenced by tumor size, the number of axillary nodal metastases, the type of treatment for recurrence, or the interval to recurrence. The proportions surviving 5 and 10 years after recurrence were 17% and 5%, respectively. Among T1N0M0 cases, the chance of a local recurrence was 2.8% within 20 years. Median survival of T1N0M0 cases after local recurrence (4.5 years) was significantly longer than after systemic recurrence (1.5 years). A similar trend (3.7 v 2.0 years), not statistically significant, was seen in T1N1M0 patients, who had a 6.5% chance of local recurrence within 20 years. Median survival following systemic recurrence detected 10 or more years after diagnosis in T1N0M0 and in T1N1M0 patients was significantly longer than the median survival for systemic recurrences found in the first decade of follow-up. This difference did not apply following local recurrence in either T1N0M0 or T1N1M0 cases. It is evident that patients with T1 breast carcinoma can be subdivided into differing prognostic groups and this must be taken into account when considering the role of adjuvant chemotherapy for stage I disease. Systemic adjuvant treatment may prove to be beneficial for patients with unfavorable prognostic factors, while women with an especially low risk for recurrence (eg, T1N0M0 tumor 1.0 cm or less) might be spared such treatment.

Retreatment with talimogene laherparepvec for advanced melanoma

Immunotherapy ◽  
2020 ◽  
Vol 12 (16) ◽  
pp. 1167-1172
Author(s):  
Janice Hu ◽  
Sabran J Masoud ◽  
Surya Ravichandran ◽  
Georgia M Beasley ◽  
Paul J Mosca
Keyword(s):  
Adverse Event ◽  
Disease Progression ◽  
Initial Treatment ◽  
Relevant Literature ◽  
Complete Response ◽  
Advanced Melanoma ◽  
Severe Adverse Event ◽  
Stage Iiib ◽  
Talimogene Laherparepvec ◽  
Mixed Response

Aim: Talimogene laherparepvec (T-VEC) is a genetically modified oncolytic herpesvirus approved for the treatment of unresectable, locoregionally advanced and recurrent melanoma. There is little relevant literature in the context of retreatment with T-VEC. Materials & methods: We reviewed four patients aged 71–87 years old with stage IIIB–IV melanoma at treatment who were rechallenged with T-VEC after experiencing recurrence of locoregional disease or prior treatment-limiting toxicity. Results: Cessation of initial treatment was due to one of the following reasons: severe adverse event (one case), mixed response (one case) or complete response (two cases). Three males and one female underwent T-VEC retreatment with a mean of 5.5 injection cycles. Three patients experienced a complete response to retreatment, while one experienced disease progression. Conclusion: Intralesional T-VEC may be effective and well-tolerated in patients who have completed prior T-VEC therapy.

scholarly journals Response and relapse rates after treatment with long-acting somatostatin analogs in multifocal or recurrent type-1 gastric carcinoids: A systematic review and meta-analysis

2019 ◽  
Vol 8 (2) ◽  
pp. 140-147 ◽  
Author(s):  
Roberta Elisa Rossi ◽  
Pietro Invernizzi ◽  
Vincenzo Mazzaferro ◽  
Sara Massironi
Keyword(s):  
Systematic Review ◽  
Neuroendocrine Tumors ◽  
Response Rate ◽  
Complete Response Rate ◽  
Somatostatin Analogs ◽  
Complete Response ◽  
Long Acting ◽  
Cumulative Relapse Rate

Background Type-1 gastric neuroendocrine tumors represent a recurring disease and long-acting somatostatin analogs can inhibit both gastrin release and endocrine cell proliferation. The efficacy and timing of this treatment are still unclear. We performed a systematic review of the literature to clarify the role of somatostatin analog treatment in type-1 gastric neuroendocrine tumors. Methods A computerized literature search was performed using relevant keywords to identify all the pertinent articles published in the last 15 years. Results Eight studies were included in this systematic review on somatostatin analogs in type-1 gastric neuroendocrine tumors. A complete response rate ranged from 25–100%. When only the six prospective studies were considered, no significant heterogeneity was observed, and the pooled cumulative complete response rate was 84.5% (confidence interval 73.8–92.8). Three studies evaluated the type-1 gastric neuroendocrine tumor recurrence, with a cumulative relapse rate of 30.2% (confidence interval 13.1–50.6) after 34 months. Conclusion Somatostatin analogs, namely lanreotide and octreotide, have an excellent response rate, with a good safety profile in selected type-1 gastric neuroendocrine tumors, which cannot be safely managed by endoscopic follow-up or resection due to multiple or frequently recurring disease. After therapy discontinuation, the cumulative relapse rate observed after a median 34-month follow-up was relatively high (30.2%).

scholarly journals Efficacy and safety of selective internal radiation therapy with yttrium-90 for the treatment of unresectable hepatocellular carcinoma

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Nguyen Van Thai ◽  
Nguyen Tien Thinh ◽  
Thai Doan Ky ◽  
Mai Hong Bang ◽  
Dinh Truong Giang ◽  
...  
Keyword(s):  
Prognostic Factors ◽  
Proportional Hazards ◽  
Tumor Response ◽  
Complete Response ◽  
Tumor Burden ◽  
Cox Proportional Hazards ◽  
Factors Affecting ◽  
Kaplan Meier ◽  
Modified Recist

Abstract Background This retrospective analysis was undertaken to evaluate the efficiency of SIRT with Y-90 microspheres and determined prognostic factors affecting patients with unresectable HCC. Methods A total of 97 patients diagnosed with unresectable HCC who underwent SIRT with Y-90 microspheres. Patient survival was assessed using the Kaplan–Meier method, and prognostic factors affecting survival were assessed using log-rank tests and Cox proportional hazards regression. Results Among the 97 patients (90 males, mean age 60.4 ± 12.3 years) who underwent SIRT, the median clinical follow-up was 16.4 (1.8–62) months. The median overall survival (OS) was 23.9 ± 2.4 months. Tumor response according to the Modified RECIST in patients followed up beyond 6 months included a complete response (CR) to treatment in 12 patients (18.8%), partial response (PR) in 23 (35.8%), stable disease (SD) in 8 (12.5%), and progressive disease (PD) in 21 (32.8%). Factors associated with longer OS included age > 65 years, BCLC stage B, tumor size < 5 cm, tumor burden < 25%, and tumor response (CR/PR). In multivariate analysis, unilobar disease and objective tumor response (CR/PR) were predictors of longer OS. Conclusion SIRT was an effective treatment for unresectable HCC. Unilobar disease before SIRT and tumor response (CR/PR) were positive prognostic factors.

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