Incidence, features and management of radionecrosis (RN) in melanoma patients (pts) treated with cerebral radiotherapy (RT) and anti-PD-1 antibodies (PD1).

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. 9513-9513 ◽  
Author(s):  
Ines Esteves Domingues Pires Da Silva ◽  
Romany Anne Nilanthi Johnpulle ◽  
Patricia Diana Banks ◽  
G. Daniel Grass ◽  
Jess Louise Smith ◽  
...  

9513 Background: Melanoma brain metastases confer poor prognosis, with various treatments used including RT and PD1. While RT and PD1 may have a synergistic effect to improve efficacy, RN may complicate RT, and whether PD1 potentiates this is unknown. We examined the incidence and features of RN and other neurotoxicities in melanoma pts treated with PD1 and whole brain radiotherapy (WBRT) or stereotactic radiosurgery (SRS). Methods: Pts treated with PD1 who received WBRT/SRS during or within 1 year (y) of PD1 who survived > 1y were examined for short and long term neurotoxicity. 2 cohorts were included: (A) consecutive pts fulfilling eligibility criteria from 8 melanoma centers, (B) additional cases of RN from 3 centers. Pt demographics, disease features, treatment details, neurotoxicity, and outcome data were collected. Results: Cohort A included 118 pts, with median follow-up of 24.3 months (mo). Median age was 56yo, 51% had mutant BRAF, 41% elevated LDH and 65% were ECOG 1-2 at PD1 start. 58% had prior ipilimumab and 43% prior MAPK inhibitors. 85% were treated with pembrolizumab, 10% nivolumab and 5% combination ipilimumab/nivolumab. Most pts (82, 69%) had SRS, 22 (19%) had WBRT alone and 14 pts (12%) had both. Median PFS was 24mo and OS was 45.8mo. 21 pts (18%) developed RN, (14/82) 17% after SRS, (2/22) 9% after WBRT and (5/14) 36% after both. With 13 further cases from cohort B (total 34), all had radiological signs on MRI, 78% had neurological symptoms and 56% had pathological confirmation of RN. Median time to symptom onset and to first radiological sign was 9.8mo and 10.8mo, respectively. 52% were treated with steroids and 30% had bevacizumab, with clinical improvement in 64% and 100%, respectively. Updated analysis including clinical variables associated with RN development will be presented, including RT dose and schedule. Conclusions: RN is a significant toxicity in melanoma pts with brain metastases treated with RT and PD1, particularly in long term survivors. Further research to identify those at risk of RN, those who do not require RT, and studies exploring RT and PD1 schedules are required.

ABOUTOPEN ◽  
2018 ◽  
Vol 4 (1) ◽  
pp. 39-45
Author(s):  
Giovanni Faggioni

S We present the case of a patient affected by HER2-positive breast carcinoma, relapsed at supraclavicular and mediastinal lymph nodes level, after three and eight years from initial diagnosis. These relapses were successfully treated by local radiotherapy, hormone therapy and trastuzumab. After 10 years from onset, the patient developed cerebral progression with a number of seizable lesions, overt clinical symptoms. To avoid the short- and long-term side effects of whole brain radiotherapy, the patient is initially treated with lapatinib and capecitabine in light of the favorable data on the efficacy of this combination on brain metastases from HER2-positive breast carcinoma. This therapy results in a considerable lesions reduction, allowing to postpone the panencephalic radiotherapy to a later time with a lower tumor burden. The response to radiotherapy is significant and sustanined for a progression-free interval of about 10 months. This case suggests that lapatinib may represent the treatment of choice in cases of indolent disease, characterized by long progression free intervals with minor symptoms with the aim to postpone the use of more invasive treatments (Oncology).


2021 ◽  
Vol 28 (1) ◽  
pp. 549-559
Author(s):  
Archya Dasgupta ◽  
Jayson Co ◽  
Jeff Winter ◽  
Barbara-Ann Millar ◽  
Normand Laperriere ◽  
...  

Background: The purpose of our study was to characterize clinical features among brain metastasis (BM) patients who were long term survivors (LTS). Methods: We reviewed a registry of BM patients referred to our multidisciplinary BM clinic between 2006 and 2014 and identified 97 who lived ≥ 3 years following BM diagnosis. The clinical and treatment characteristics were obtained from a prospectively maintained database, and additional information was obtained through review of electronic medical records and radiologic images. Survival analyses were performed using the Kaplan-Meier method. Results: Median follow up for LTS was 67 months (range 36–181). Median age was 54 years, 65% had single BM, 39% had stable extracranial disease at the time of BM treatment, and brain was the first site of metastasis in 76%. Targetable mutations were present in 39% of patients and 66% received treatment with targeted-, hormonal-, or immuno-therapy. Brain surgery at the time of diagnosis was performed in 40% and stereotactic radiosurgery (SRS) or whole brain radiotherapy (alone or combination) in 52% and 56%, respectively. Following initial BM treatment, 5-year intracranial disease-free survival was 39%, and the cumulative incidence of symptomatic radio-necrosis was 16%. Five and ten-year overall survival was 72% and 26%, respectively. Conclusion: Most LTS were younger than 60 years old and had a single BM. Many received treatment with surgery or targeted, immune, or hormonal therapy.


2021 ◽  
Vol 3 (Supplement_5) ◽  
pp. v96-v107
Author(s):  
Michael W Parsons ◽  
Katherine B Peters ◽  
Scott R Floyd ◽  
Paul Brown ◽  
Jeffrey S Wefel

Abstract Neurocognitive function (NCF) deficits are common in patients with brain metastases, occurring in up to 90% of cases. NCF deficits may be caused by tumor-related factors and/or treatment for the metastasis, including surgery, radiation therapy, chemotherapy, and immunotherapy. In recent years, strategies to prevent negative impact of treatments and ameliorate cognitive deficits for patients with brain tumors have gained momentum. In this review, we report on research that has established the efficacy of preventative and rehabilitative therapies for NCF deficits in patients with brain metastases. Surgical strategies include the use of laser interstitial thermal therapy and intraoperative mapping. Radiotherapy approaches include focal treatments such as stereotactic radiosurgery and tailored approaches such as hippocampal avoidant whole-brain radiotherapy (WBRT). Pharmacologic options include use of the neuroprotectant memantine to reduce cognitive decline induced by WBRT and incorporation of medications traditionally used for attention and memory problems. Integration of neuropsychology into the care of patients with brain metastases helps characterize cognitive patterns, educate patients and families regarding their management, and guide rehabilitative therapies. These and other strategies will become even more important for long-term survivors of brain metastases as treatment options improve.


2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii40-ii41
Author(s):  
Joshua Palmer ◽  
Brett Klamer ◽  
Karla Ballman ◽  
Paul Brown ◽  
Jane Cerhan ◽  
...  

Abstract PURPOSE We investigated the long term impact of SRS and WBRT in two large prospective phase III trials. METHODS Patients with 1–4 BMs +/- resection were randomized to SRS or WBRT. Cognitive deterioration was a drop of >1 standard deviation from baseline in >2/6 cognitive measures (CM). Quality of life (QOL) scores were scored 0–100 point scale. CM and QOL scores were modeled using baseline adjusted Linear Mixed Models (LMM) with uncorrelated random intercept for subject and random slopes for time. Differences over time between groups and the effect of >2 cognitive scores with >2 SD change from baseline were assessed. RESULTS 88 patients were included with median follow up of 24 months. We observed decreasing CM over time (SRS: 4/6; WBRT: 5/6). Mean CM was significantly higher in SRS for Total recall and Delayed Recall at 3, 6, 9, 12 months. More patients in WBRT arm declined 1 SD in >1 and >2 CM at the 3, 6, 9, and 12 months. A 1 SD decline in >3 CM at 1 year was 21% SRS vs 47% WBRT (p=0.02). SRS had fewer patients with a 2 SD decline in >1 CM at every time point. SRS had fewer patients with a 2 SD decline at >2 and >3 CM. WBRT had lower QOL at 3 months, but switched to SRS having lower QOL at 24 months for PWB, EWB, FWB, FactG, BR, and FactBR (p< 0.05). A 2 SD decline in cognition decreased mean FWB by 6.4 units (95% CI: -11, -1.75; p=0.007) and decreased QOL by 5.1 units (95% CI: -7.7, -2.5; p< 0.001). CONCLUSIONS We report the first pooled prospective study demonstrating the long term outcomes of patients with BMs after cranial radiation. WBRT was associated with worse cognitive outcomes. Impaired cognition is associated with worse QOL.


Author(s):  
Yukinori Okada ◽  
Mariko Kobayashi ◽  
Mio Shinozaki ◽  
Tatsuyuki Abe ◽  
Naoki Nakamura

Abstract Aim: To identify prognostic factors and investigate patient survival after whole-brain radiotherapy (WBRT) for initial brain metastases arising from non-small cell lung cancer (NSCLC). Methods: Patients diagnosed with NSCLC between 1 January 2010 and 30 September 2019, and who received WBRT upon first developing a brain metastasis, were investigated. Overall survival was determined as related to age, sex, duration between initial examination and brain metastasis detection, stage at the first examination, presence of metastases outside the brain, blood analysis findings, brain metastasis symptoms, radiotherapy dose and completion, imaging findings, therapeutic course of chemotherapy and/or radiation therapy, histological type, and gene mutation status. Results: Thirty-one consecutive patients (20 men and 11 women) with a mean age of 63·8 years and median survival of 129 days were included. Multivariate analysis with stepwise testing was performed to investigate differences in survival according to gene mutation status, lactate dehydrogenase (LDH) level, irradiation dose, WBRT completion and Stage status. Of these, a statistically significant difference in survival was observed in patients with gene mutation status (hazard ratio: 0·31, 95% CI: 0·11–0·86, p = 0·025), LDH levels <230 vs. ≥230 IU/L (hazard ratio: 4·08, 95% CI: 1·45–11·5, p < 0·01) received 30 Gy, 30 Gy/10 fractions to 35 Gy/14 fractions, and 37·5 Gy/15 fractions (hazard ratio: 0·26, 95% CI: 0·09–0·71, p < 0·01), and stage IV versus non-stage IV (hazard ratio: 0·13, 95 CI:0·02–0·64, p < 0·01) Findings: Gene mutation, LDH, radiation dose and Stage are prognostic factors for patients with initial brain metastases who are treated with WBRT.


Author(s):  
Dianne Hartgerink ◽  
Anna Bruynzeel ◽  
Danielle Eekers ◽  
Ans Swinnen ◽  
Coen Hurkmans ◽  
...  

Abstract Background The clinical value of whole brain radiotherapy (WBRT) for brain metastases (BM) is a matter of debate due to the significant side effects involved. Stereotactic radiosurgery (SRS) is an attractive alternative treatment option that may avoid these side effects and improve local tumor control. We initiated a randomized trial (NCT02353000) to investigate whether quality of life is better preserved after SRS compared with WBRT in patients with multiple brain metastases. Methods Patients with 4 to 10 BM were randomized between the standard arm WBRT (total dose 20 Gy in 5 fractions) or SRS (single fraction or 3 fractions). The primary endpoint was the difference in quality of life (QOL) at three months post-treatment. Results The study was prematurely closed due to poor accrual. A total of 29 patients (13%) were randomized, of which 15 patients have been treated with SRS and 14 patients with WBRT. The median number of lesions were 6 (range, 4-9) and the median total treatment volume was 13.0 cc 3 (range, 1.8-25.9 cc 3). QOL at three months decreased in the SRS group by 0.1 (SD=0.2), compared to 0.2 (SD=0.2) in the WBRT group (p=0.23). The actuarial one-year survival rates were 57% (SRS) and 31% (WBRT) (p=0.52). The actuarial one-year brain salvage-free survival rates were 50% (SRS) and 78% (WBRT) (p=0.22). Conclusion In patients with 4 to 10 BM, SRS alone resulted in one-year survival for 57% of patients while maintaining quality of life. Due to the premature closure of the trial, no statistically significant differences could be determined.


CNS Oncology ◽  
2014 ◽  
Vol 3 (6) ◽  
pp. 401-406 ◽  
Author(s):  
Macarena de la Fuente ◽  
Kathryn Beal ◽  
Richard Carvajal ◽  
Thomas J Kaley

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