A Multicenter Phase 2 Study of Ultrahypofractionated Stereotactic Boost After External Beam Radiotherapy in Intermediate-risk Prostate Carcinoma: A Very Long-term Analysis of the CKNO-PRO Trial.

Background: Genitourinary (GU) or gastrointestinal (GI) complications and tumor relapse can occur in the long term after radiotherapy for prostate cancer.

Objective: To assess the late tolerance and relapse-free survival (RFS) in patients undergoing hypofractionated stereotactic boost therapy after external beam radiotherapy (EBRT) for intermediate-risk prostate cancer.

Design Setting And Participants: Seventy-six patients with intermediate-risk prostate carcinoma between August 2010 and April 2013 were included.

Stereotactic focal radiotherapy as an alternative treatment for low-risk prostate cancer: Results of a single-arm monocenter Phase-II trial.

Introduction: Since radical treatments in low risk prostate cancer do not improve overall survival in comparison to active surveillance, preserving quality of life (QOL) remains the key objective. Active surveillance of indolent prostate cancer avoids curative treatment side-effects but necessitates repeated biopsies. Focal stereotactic body radiation therapy (focal SBRT) may be an alternative.

Prospective validation of stringent dose constraints for prostatic stereotactic radiation monotherapy: results of a single-arm phase II toxicity-oriented trial.

Purpose: There are no safety-focused trials on stereotactic body radiotherapy (SBRT) for localized prostate cancer. This prospective 3‑year phase II trial used binomial law to validate the safety and efficacy of SBRT with stringent organ at risk dose constraints that nevertheless permitted high planning target volume doses.

Methods: All consecutive ≥ 70-year-old patients with localized prostate adenocarcinoma who underwent SBRT between 2014 and 2018 at the National Radiotherapy Center in Luxembourg were included.

Tumor Size Matters-Understanding Concomitant Tumor Immunity in the Context of Hypofractionated Radiotherapy with Immunotherapy.

The purpose of this study was to determine the dynamic contributions of different immune cell subsets to primary and abscopal tumor regression after hypofractionated radiation therapy (hRT) and the impact of anti-PD-1 therapy. A bilateral syngeneic FSA1 fibrosarcoma model was used in immunocompetent C3H mice, with delayed inoculation to mimic primary and microscopic disease. The effect of tumor burden on intratumoral and splenic immune cell content was delineated as a prelude to hRT on macroscopic T1 tumors with 3 fractions of 8 Gy while microscopic T2 tumors were left untreated.

A Multicenter Phase 2 study of Hypofractionated Stereostatic Boost in Intermediate Risk Prostate Carcinoma: A 5-Year Analysis of the CKNO-PRO Trial.

Purpose: The aim of this analysis was to assess the 5-year tolerance and survival in patients undergoing hypofractionated stereotactic boost after external beam radiation therapy (EBRT) for intermediate-risk prostate cancer.

Methods And Materials: Between August 2010 and April 2013, 76 patients with intermediate-risk prostate carcinoma were included in the study. A first course delivered 46 Gy using conventional fractionation.

Irradiation to Improve the Response to Immunotherapeutic Agents in Glioblastomas.

Purpose: Glioblastoma (GBM) remains an incurable disease despite extensive treatment with surgical resection, irradiation, and temozolomide. In line with many other forms of aggressive cancers, GBM is currently under consideration as a target for immunotherapy. However, GBM tends to be nonimmunogenic and exhibits a microenvironment with few or no effector T cells, a relatively low nonsynonymous somatic mutational load, and a low predicted neoantigen burden.

NHL-ChirEx: An interprofessional cross-border education initiative in the Greater Region with a focus on radiation morbidity and patient safety.

NHL-ChirEx is an interprofessional cross-border education project that addresses the potential excess of radiation induced morbidity throughout the radiation planning and treatment process. NHL-ChirEx is supported by ESTRO and the University of the Greater Region and has been recently approved and funded under INTERREG VA Programme.

[Inflammatory and immune biomarkers of radiation response].

In radiotherapy, the treatment is adapted to each individual to protect healthy tissues but delivers most of time a standard dose according to the tumor histology and site. The only biomarkers studied to individualize the treatment are the HPV status with radiation dose de-escalation strategies, and tumor hypoxia with dose escalation to hypoxic subvolumes using FMISO- or FAZA-PET imaging. In the last decades, evidence has grown about the contribution of the immune system to radiation tumor response.

Hypofractionated stereotactic boost in intermediate risk prostate carcinoma: Preliminary results of a multicenter phase II trial (CKNO-PRO).

Purpose: Dose escalation may improve curability in intermediate-risk prostate carcinoma. A multicenter national program was developed to assess toxicity and tumor response with hypofractionated stereotactic boost after conventional radiotherapy in intermediate-risk prostate cancer.

Methods And Material: Between August 2010 and April 2013, 76 patients with intermediated-risk prostate carcinoma were included in the study.

A retrospective cohort study to assess adjuvant concurrent chemoradiation (CCRT) compared to adjuvant radiation therapy (RT) in the treatment of grade 2 and 3 extremity soft tissue sarcomas.

Purpose: To evaluate the efficacy and tolerance of adjuvant concurrent chemoradiation (CCRT) as treatment of grade 2 and 3 (G2-3) localized extremity soft tissue sarcomas (STS) by comparing CCRT with standard adjuvant radiation therapy (RT).

Patients And Methods: This monocentric retrospective study included non-pediatric patients (>16years) treated by adjuvant RT with or without chemotherapy (CT) after conservative resection of non-recurrent G2-3 extremity STS.

Results: A total of 80 patients were treated between 1990 and 2012: 51 by RT and 29 by CCRT.

Salvage robotic SBRT for local prostate cancer recurrence after radiotherapy: preliminary results of the Oscar Lambret Center.

Background: Currently, there is no standard option for local salvage treatment for local prostate cancer recurrence after radiotherapy. Our objective was to investigate the feasibility and efficiency of Robotic Stereotactic Body Radiation Therapy (SBRT) in this clinical setting.

Methods/materials: We retrospectively reviewed patients who were treated at our institution with SBRT for local prostate cancer recurrence after External Beam Radiation Therapy (EBRT) or brachytherapy.

[Cancer, radiotherapy and immune system].

Novel paradigms emerge in oncology today. Systemic treatments are more effective and diversified along with an increased life expectancy in oligometastatic patients. Stereotactic radiotherapy using hypofractionation opens new perspectives for local tumour control.

[Intraprostatic fiducials in stereotactic radiotherapy for prostate cancer].

Purpose: Image-guided radiotherapy for prostate cancer is widely used in radiotherapy departments. Intraprostatic gold fiducial markers are used to visualize prostate position and motion before and during treatment. The aim of this report is to describe our experience of implanting intraprostatic fiducial markers under local anesthesia before hypofractionated stereotactic radiotherapy for prostate cancer and to assess its tolerance and reproducibility.

[Not Available].

Purpose Of The Study: To evaluate the efficacy of fractionated stereotactic reirradiation with CyberKnife (CK) performed in 6 patients with high grade gliomas treated in Luxembourg with local recurrence (LR).

Patients And Methods: Between 04.2014 and 06.

Safety of adjuvant intensity-modulated postoperative radiation therapy in endometrial cancer: Clinical data and dosimetric parameters according to the International Commission on Radiation Units (ICRU) 83 report.

Aim: To report a single-institution experience using postoperative pelvic Intensity Modulation Radiation Therapy (IMRT) using tomotherapy accelerators (TA) in postoperative endometrial cancer (EC) regarding ICRU 83 recommendations.

Background: IMRT in gynecological malignancies provides excellent dosimetric data, lower rates of adverse events and clinical data similar to historical series.

Material And Methods: Seventy-six patients with EC were postoperatively treated with adjuvant IMRT using TA.

What is the normal tissues morbidity following Helical Intensity Modulated Radiation Treatment for cervical cancer?

Background And Purpose: To report on normal tissues morbidity following IMRT for cervix cancer.

Material And Methods: The first 61 patients of a prospective series were included. 50 Gy to the PTV 1(pelvis) and 60 Gy to the PTV 2 (centro-pelvic disease and GTV nodes) were delivered concomitantly in 28 fractions, followed by a brachytherapy boost.

Feasibility study of pelvic helical IMRT for elderly patients with endometrial cancer.

Purpose: Standard treatment for early-stage endometrial cancer involves surgery (when possible) followed by brachytherapy or external-beam radiotherapy (EBRT) for high-risk tumors. EBRT is not without toxicity, meaning that it could be difficult to complete for elderly patients, who typically have decreased reserve and resistance to stressors.

Patients And Methods: Patients aged 70 and over treated between April 2009 and May 2013 for endometrial cancer and received IMRT (Intensity-Modulated Radiation Therapy) were included in this observational study.

[Permanent iodine-125 implants brachytherapy: results after 10 years of experience in Liège University Hospital].

Permanent implant iodine-125 brachytherapy is an attractive treatment option for men with localized prostate cancer and is an alternative approach to radical prostatectomy. Overall survival and biochemical relapse free survival are similar with both treatments but the toxicity is different. More potency preservation, less incontinence and one day hospitalisation are attractive for the patient with brachytherapy.

A new laparoscopic method of bowel radio-protection before pelvic chemoradiation of locally advanced cervix cancers.

Background: Chemoradiation therapy (CRT) has become the mainstay of locally advanced cervical carcinomas (LACC). However, the price to pay is a significant rate of both early and late colo-rectal toxicities, which may impact on survivors' quality of life. To reduce the incidence of such complications, we suggest a simple technique of pelvic radioprotection.

Volume-based pulsed-dose-rate brachytherapy boosting concurrent chemoradiation as a definitive treatment modality in cervical cancer.

Purpose: To report the treatment outcomes and treatment-induced adverse events (AEs) of concomitant chemoradiotherapy boosted with pulsed-dose-rate brachytherapy using volume-based two-dimensional planning in patients with cervical cancer.

Patients And Methods: After obtaining the institutional review board approval, patients with FIGO Stages IB to IIIB cervical cancer, treated from January 2006 to December 2008 consecutively, were included. Volume-based planning was used and entailed defining an envelope around the tumor on a two-dimensional image and prescribing the dose to this envelope and reporting the dose of the isodose of 60 Gy.

[Laparoscopic radical hysterectomy after initial brachytherapy for stage IB1 cervical cancer: feasibility and results].

Background: The aim of this study was to examine the feasibility and to report the results of laparoscopic radical hysterectomy (LRH) after initial uterovaginal brachytherapy (BT) for stage IB1 cervical cancer.

Patients And Methods: We retrospectively reviewed in two Comprehensive Cancer Centers patients who had undergone initial BT followed 6 to 8 weeks later by LRH and lymph node dissection.

Results: Between 2003 and 2010, 162 patients had undergone LRH.

Concomitant Chemoradiotherapy With Image-guided Pulsed Dose Rate Brachytherapy as a Definitive Treatment Modality for Early-stage Cervical Cancer.

Purpose: Concurrent chemoradiotherapy (CRT) is the standard of care for patients with bulky cervical cancer. This study aimed to determine the feasibility, tolerance, and effectiveness of pulsed dose rate (PDR) image-guided brachytherapy (IGBT), utilizing magnetic resonance imaging (MRI) planning after CRT for stages IB2 and II cervix cancer patients.

Methods And Materials: This study planned to include patients with histologically confirmed stage IB2 and II cervical cancer who were treated with CRT followed by a PDR IGBT boost from January 2009 to December 2009 in our institution.