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725 result(s) for "Brachytherapy - adverse effects"
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Radiation necrosis after a combination of external beam radiotherapy and iodine-125 brachytherapy in gliomas
Purpose Frequency and risk profile of radiation necrosis (RN) in patients with glioma undergoing either upfront stereotactic brachytherapy (SBT) and additional salvage external beam radiotherapy (EBRT) after tumor recurrence or vice versa remains unknown. Methods Patients with glioma treated with low-activity temporary iodine-125 SBT at the University of Munich between 1999 and 2016 who had either additional upfront or salvage EBRT were included. Biologically effective doses (BED) were calculated. RN was diagnosed using stereotactic biopsy and/or metabolic imaging. The rate of RN was estimated with the Kaplan Meier method. Risk factors were obtained from logistic regression models. Results Eighty-six patients (49 male, 37 female, median age 47 years) were included. 38 patients suffered from low-grade and 48 from high-grade glioma. Median follow-up was 15 months after second treatment. Fifty-eight patients received upfront EBRT (median total dose: 60 Gy), and 28 upfront SBT (median reference dose: 54 Gy, median dose rate: 10.0 cGy/h). Median time interval between treatments was 19 months. RN was diagnosed in 8/75 patients. The 1- and 2-year risk of RN was 5.1% and 11.7%, respectively. Tumor volume and irradiation time of SBT, number of implanted seeds, and salvage EBRT were risk factors for RN. Neither of the BED values nor the time interval between both treatments gained prognostic influence. Conclusion The combination of upfront EBRT and salvage SBT or vice versa is feasible for glioma patients. The risk of RN is mainly determined by the treatment volume but not by the interval between therapies.
Late side-effects and cosmetic results of accelerated partial breast irradiation with interstitial brachytherapy versus whole-breast irradiation after breast-conserving surgery for low-risk invasive and in-situ carcinoma of the female breast: 5-year results of a randomised, controlled, phase 3 trial
We previously confirmed the non-inferiority of accelerated partial breast irradiation (APBI) with interstitial brachytherapy in terms of local control and overall survival compared with whole-breast irradiation for patients with early-stage breast cancer who underwent breast-conserving surgery in a phase 3 randomised trial. Here, we present the 5-year late side-effects and cosmetic results of the trial. We did this randomised, controlled, phase 3 trial at 16 centres in seven European countries. Women aged 40 years or older with stage 0–IIA breast cancer who underwent breast-conserving surgery with microscopically clear resection margins of at least 2 mm were randomly assigned 1:1, via an online interface, to receive either whole-breast irradiation of 50 Gy with a tumour-bed boost of 10 Gy or APBI with interstitial brachytherapy. Randomisation was stratified by study centre, menopausal status, and tumour type (invasive carcinoma vs ductal carcinoma in situ), with a block size of ten, according to an automated dynamic algorithm. Patients and investigators were not masked to treatment allocation. The primary endpoint of our initial analysis was ipsilateral local recurrence; here, we report the secondary endpoints of late side-effects and cosmesis. We analysed physician-scored late toxicities and patient-scored and physician-scored cosmetic results from the date of breast-conserving surgery to the date of onset of event. Analysis was done according to treatment received (as-treated population). This trial is registered with ClinicalTrials.gov, number NCT00402519. Between April 20, 2004, and July 30, 2009, we randomly assigned 1328 women to receive either whole-breast irradiation (n=673) or APBI with interstitial brachytherapy (n=655); 1184 patients comprised the as-treated population (551 in the whole-breast irradiation group and 633 in the APBI group). At a median follow-up of 6·6 years (IQR 5·8–7·6), no patients had any grade 4 toxities, and three (<1%) of 484 patients in the APBI group and seven (2%) of 393 in the whole-breast irradiation group had grade 3 late skin toxicity (p=0·16). No patients in the APBI group and two (<1%) in the whole-breast irradiation group developed grade 3 late subcutaneous tissue toxicity (p=0·10). The cumulative incidence of any late side-effect of grade 2 or worse at 5 years was 27·0% (95% CI 23·0–30·9) in the whole-breast irradiation group versus 23·3% (19·9–26·8) in the APBI group (p=0·12). The cumulative incidence of grade 2–3 late skin toxicity at 5 years was 10·7% (95% CI 8·0–13·4) in the whole-breast irradiation group versus 6·9% (4·8–9·0) in the APBI group (difference −3·8%, 95% CI −7·2 to 0·4; p=0·020). The cumulative risk of grade 2–3 late subcutaneous tissue side-effects at 5 years was 9·7% (95% CI 7·1–12·3) in the whole-breast irradiation group versus 12·0% (9·4–14·7) in the APBI group (difference 2·4%; 95% CI −1·4 to 6·1; p=0·28). The cumulative incidence of grade 2–3 breast pain was 11·9% (95% CI 9·0–14·7) after whole-breast irradiation versus 8·4% (6·1–10·6) after APBI (difference −3·5%; 95% CI −7·1 to 0·1; p=0·074). At 5 years' follow-up, according to the patients' view, 413 (91%) of 454 patients had excellent to good cosmetic results in the whole-breast irradiation group versus 498 (92%) of 541 patients in the APBI group (p=0·62); when judged by the physicians, 408 (90%) of 454 patients and 503 (93%) of 542 patients, respectively, had excellent to good cosmetic results (p=0·12). No treatment-related deaths occurred, but six (15%) of 41 patients (three in each group) died from breast cancer, and 35 (85%) deaths (21 in the whole-breast irradiation group and 14 in the APBI group) were unrelated. 5-year toxicity profiles and cosmetic results were similar in patients treated with breast-conserving surgery followed by either APBI with interstitial brachytherapy or conventional whole-breast irradiation, with significantly fewer grade 2–3 late skin side-effects after APBI with interstitial brachytherapy. These findings provide further clinical evidence for the routine use of interstitial multicatheter brachytherapy-based APBI in the treatment of patients with low-risk breast cancer who opt for breast conservation. German Cancer Aid.
Adjuvant external beam radiotherapy in the treatment of endometrial cancer (MRC ASTEC and NCIC CTG EN.5 randomised trials): pooled trial results, systematic review, and meta-analysis
Early endometrial cancer with low-risk pathological features can be successfully treated by surgery alone. External beam radiotherapy added to surgery has been investigated in several small trials, which have mainly included women at intermediate risk of recurrence. In these trials, postoperative radiotherapy has been shown to reduce the risk of isolated local recurrence but there is no evidence that it improves recurrence-free or overall survival. We report the findings from the ASTEC and EN.5 trials, which investigated adjuvant external beam radiotherapy in women with early-stage disease and pathological features suggestive of intermediate or high risk of recurrence and death from endometrial cancer. Between July, 1996, and March, 2005, 905 (789 ASTEC, 116 EN.5) women with intermediate-risk or high-risk early-stage disease from 112 centres in seven countries (UK, Canada, Poland, Norway, New Zealand, Australia, USA) were randomly assigned after surgery to observation (453) or to external beam radiotherapy (452). A target dose of 40–46 Gy in 20–25 daily fractions to the pelvis, treating five times a week, was specified. Primary outcome measure was overall survival, and all analyses were by intention to treat. These trials were registered ISRCTN 16571884 (ASTEC) and NCT 00002807 (EN.5). After a median follow-up of 58 months, 135 women (68 observation, 67 external beam radiotherapy) had died. There was no evidence that overall survival with external beam radiotherapy was better than observation, hazard ratio 1·05 (95% CI 0·75–1·48; p=0·77). 5-year overall survival was 84% in both groups. Combining data from ASTEC and EN.5 in a meta-analysis of trials confirmed that there was no benefit in terms of overall survival (hazard ratio 1·04; 95% CI 0·84–1·29) and can reliably exclude an absolute benefit of external beam radiotherapy at 5 years of more than 3%. With brachytherapy used in 53% of women in ASTEC/EN.5, the local recurrence rate in the observation group at 5 years was 6·1%. Adjuvant external beam radiotherapy cannot be recommended as part of routine treatment for women with intermediate-risk or high-risk early-stage endometrial cancer with the aim of improving survival. The absolute benefit of external beam radiotherapy in preventing isolated local recurrence is small and is not without toxicity. Medical Research Council, National Cancer Research Network, National Cancer Institute of Canada, with funds from the Canadian Cancer Society.
Pain scores reduction with the use of ultrasound-guided paracervical nerve block in patients with cervical cancer undergoing intracavitary brachytherapy: A randomized controlled trial
To determine the safety and effectiveness of ultrasound-guided paracervical nerve blocks for the painless treatment of patients with cervical cancer post-implantation. Single-center randomized controlled trial. Fourth Hospital of Hebei Medical University (July 2023 to October 2023). ChiCTR2300071580 [https://clin.larvol.com/trial-detail/ChiCTR2300071580]. Eighty patients with cervical cancer underwent post-implantation treatment. Patients receiving and not receiving paracervical nerve blocks (Groups T and C, respectively) were randomly allocated. Primary measures included visual analog scale (VAS) scores and patient body movement scores at various stages, including vaginal speculum placement (T1), applicator/needle insertion (T2), treatment administration following connection of the treatment tube (T3), needle withdrawal and hemostasis (T4), and willingness to receive further treatment. The secondary observation indices in this study included the operation time, incidence of hypoxemia, occurrence of nausea and vomiting, adverse events related to the circulatory system, patient satisfaction score, operator satisfaction score, and operation duration required by patients with an Alderte score of ≥ 9. Forty patients each were randomly allocated into Groups T and C. The VAS scores did not differ significantly between the two groups at T1. However, at T3 and T4, the VAS scores of Group T was significantly lower than that of Group C. No significant difference was observed in the body movement scores between the two groups at T1 and T3. However, the body movement score of Group T was significantly lower than that of Group C (P < 0.001) at T2 and T4. Group T showed higher postoperative satisfaction and willingness to receive further treatment compared to that of Group C. Ultrasound-guided paracervical nerve block effectively reduced the pain scores in patients with cervical cancer undergoing post-implantation treatment and enhanced their inclination to undergo further treatment.
The effect of hand massage on fatigue in women with cancer receiving brachytherapy: randomized clinical trial
Purpose This randomized controlled study was conducted to analyze the effect of hand massage on the fatigue level of the women receiving brachytherapy. Methods It was determined that 12 patients were included in each group (control and hand massage group), so 24 women with gynecologic cancer were included in the study. The application was performed on each hand for 5 min, a total of 10 min in hand massage group. Hand massage was applied before each brachytherapy (at the first, second, and third sessions, a total of three times) every other day for 1 week in the hand massage group. No intervention was performed to the control group during the study. The data were collected using the Patient Information Form and Brief Fatigue Inventory (BFI). Results At the end of the brachytherapy, the fatigue severity score and impact of fatigue on activities of daily living scores of the group that applied hand massage were determined to be lower than the control group ( p  < 0.05). Conclusion It was determined that hand massage effectively controlled fatigue and the impact of fatigue on activities of daily living. Hand massage is a safe and economical method that can be performed by certified nurses. Trial registration This clinical trial is registered at ClinicalTrials.gov (NCT06056713-09/21/2023).
Study protocol of Elective Para-aortic and pelvic versus Pelvic only Irradiation in pelvic node positive Cervical cancer: a multicentric open labelled phase III randomised controlled trial (EPIC Study)
IntroductionThe revision of International Federation of Gynaecology and Obstetrics staging in 2018 with recommendations to include cross-sectional imaging and a separate stage for node positive disease have opened a lot of uncertainties in implementing the correct treatment approach in these patients. While studies have suggested higher chances of occult para-aortic lymph node (PALN) even with advanced imaging, especially in pelvic node positive disease which tend to recur after pelvic radiation therapy. This study intends to study these patients and isolate the subset who will benefit most from elective PALN irradiation.Methods and analysisThis is an ongoing multicentric phase III randomised controlled trial with a sample size of 274 subjects in two arms (137 in each arm) to determine the superiority of limited elective para-aortic irradiation compared with no irradiation. Arm one includes radiation to the lower PALN and pelvis; Arm two includes radiation to the pelvis. Concurrent chemotherapy followed by brachytherapy is standard in both arms. Patients with cervical cancer and radiologically positive pelvic LNs aged>18 years and<70 years are screened for the study. The primary endpoint of this study is 3-year disease-free survival. The secondary endpoints include 3-year para-aortic recurrence-free survival, 3-year distant metastasis-free survival, 3-year overall survival, acute and late toxicity, quality of life. Translational study to evaluate systemic immune response by FAPI-PETCT (fibroblast activator protein inhibitor positron emission tomography) and assessment of p16, L1 cell adhesion molecule (L1CAM) and protein death ligand-1 (PDL-1) expression by immunohistochemistry.Ethics and disseminationThe study has been approved by the institutional ethics committee and will be routinely monitored according to standard guidelines. The results of the study will be published in peer-reviewed scientific journals, presented at conferences and submitted to regulatory authorities.Trial registration numberThe study was registered on 17 January 2022 under CTRI/2022/01/039495 (http://ctri.nic.in).
Prevention of radiation-induced liver toxicity after interstitial HDR brachytherapy by pentoxifylline and ursodeoxycholic acid: patient compliance and outcome in a randomized trial
Aim To investigate the impact of pentoxifylline (PTX, 3 × 400 mg per day) and ursodeoxycholic acid (UDCA, 3 × 250 mg per day) administered for 12 weeks on radiation-induced liver toxicity. Materials and methods Inclusion criteria were liver metastases of extrahepatic malignancies undergoing HDR-BT. 36 patients were prospectively randomized to the medication ( N  = 18) or control arm ( N  = 18) and follow-up by hepatobiliary magnetic resonance imaging (MRI) was scheduled 6 and 12 weeks after local ablation by HDR-BT. We determined the threshold doses of fRILI by image fusion of MRI with the dosimetry data. Results 32 patients completed the study schedule. Per-protocol treatment was limited to 8 patients in the medication group and 16 patients in the control group. 22 adverse events of any grade likely or certainly related to PTX were recorded in 12 patients leading to the discontinuation of the study medication in 7 patients and to a dose reduction of PTX in 2 patients. In the per-protocol population, statistical analysis failed to prove a reduction of fRILI 6 and 12 weeks after HDR-BT. The incidence of adverse effects attributed to PTX (70.6%) was well above the data found in the literature for its approved indication. Conclusion The study endpoint was not met mainly attributed to the low statistical power of the small per-protocol cohort. Independently, PTX cannot be recommended for the reduction of radiation-induced liver toxicity in oncologic patients undergoing HDR-BT of liver metastases. Further studies might focus on a combination of UDCA with other potential drugs to help establish a preventive and tolerable regimen.
Impact of an educational physiotherapy-yoga intervention on perceived stress in women treated with brachytherapy for cervical cancer: a randomised controlled mixed study protocol (KYOCOL)
IntroductionCervical cancer is a major global health issue. The standard treatment for locally advanced disease involves radiochemotherapy followed by uterovaginal brachytherapy (UBT). UBT requires several days of hospitalisation and strict bed rest. UBT often induces pain, anxiety, stress, distress and a decline in physical capacity during and after treatment. Previous research suggests that non-pharmacological interventions, such as yoga, may help alleviate these issues. However, few studies have specifically evaluated their effectiveness in reducing stress during UBT. Furthermore, patient education has been shown to facilitate autonomous practice and to improve patient empowerment. This study aims to evaluate the impact of the KYOCOL protocol, which integrates both a physiotherapy-yoga intervention and an educational programme, on perceived stress and its correlates in patients undergoing UBT.Methods and analysisKYOCOL is an ongoing randomised, prospective trial carried out in three French comprehensive cancer centres, using a quantitative approach complemented by a qualitative component. Eighty patients are planned to be randomised (1:1) into a control arm (standard care) or an intervention arm. In the intervention arm, patients will be educated and supervised by a trained physiotherapist in a physiotherapy-yoga programme and will then perform daily autonomous sessions during UBT and for up to 15 days post-treatment. The primary objective is to assess the impact of the KYOCOL intervention compared with standard care during UBT, on perceived stress 15 days post-UBT, using the 10-item Perceived Stress Scale. Secondary objectives include evaluating the safety of the intervention, its effects on stress, pain and fatigue during UBT, and patient adherence to the programme. Qualitative analyses based on semistructured interview surveys will be conducted to gather valuable information and analyse in depth patients’ experiences with the intervention and UBT.Ethics and disseminationThis study was approved by the French ethics committee (Comité de Protection des Personnes Ouest V, reference number 2023-A01491-44) on 22 February 2024 and will be carried out in accordance with the good clinical practice guidelines and the Declaration of Helsinki. The results will be shared with patients and healthcare professionals and published in a peer-reviewed journal.Trial registration numberNCT06263283.
Focal HDR brachytherapy boost to stereotactic radiotherapy (fBTsRT) for prostate cancer: a phase II randomized controlled trial
Background For patients with a higher burden of localized prostate cancer, radiation dose escalation with brachytherapy boosts have improved cancer control outcomes at the cost of urinary toxicity. We hypothesize that a focal approach to brachytherapy boosts targeting only grossly visualized tumor volumes (GTV) combined with stereotactic radiotherapy will improve quality of life (QoL) outcomes without compromising cancer control. Methods 150 patients with intermediate or high-risk prostate cancer will be enrolled and randomized 1:1 in a cohort multiple randomized clinical trial phase 2 design. Patients are eligible if planned for standard-of-care (SOC) high dose rate (HDR) brachytherapy boost to radiotherapy (RT) with GTVs encompassing < 50% of the prostate gland. Those randomly selected will be offered the experimental treatment, consisting of focal HDR brachytherapy boost (fBT) of 13–15 Gy in 1 fraction followed by stereotactic radiotherapy (sRT) 36.25-40 Gy in 5 fractions to the prostate (+/− 25 Gy to the elective pelvis) delivered every other day. The primary endpoint is to determine if fBTsRT is superior to SOC by having fewer patients experience a minimally important decline (MID) in urinary function as measured by EPIC-26 at 1 and 2 years. Secondary endpoints include rates of toxicity measured by Common Terminology Criteria for Adverse Events (CTCAE), and failure-free survival outcomes. Discussion This study will determine whether a novel approach for the treatment of localized prostate cancer, fBTsRT, improves QoL and merits further evaluation. Trial registration This trial was prospectively registered in ClinicalTrials.gov as NCT04100174 as a companion to registry NCT03378856 on September 24, 2019.
Efficacy of focal high-dose-rate brachytherapy in the treatment of patients diagnosed with low or favourable intermediate-risk prostate cancer—a protocol for a randomised controlled trial
IntroductionProstate cancer (PCa) is men’s second most predominant cancer worldwide. Because the prostate-specific antigen test is used in diagnostics, PCa is more often diagnosed in the early stages, making radical treatment of the disease possible. However, it is estimated that over a million men worldwide suffer from radical treatment-related complications. Thus, focal treatment has been proposed as a solution, which aims to destroy the predominant lesson that determines the progression of the disease. The main objective of our study is to compare the quality of life and efficacy of patients diagnosed with PCa before and after the treatment with focal high-dose-rate brachytherapy and to compare results with focal low-dose-rate brachytherapy and active surveillance.Methods and analysis150 patients diagnosed with low-risk or favourable intermediate-risk PCa who meet the inclusion criteria will be enrolled in the study. Patients are going to be randomly assigned to the study groups: focal high-dose-rate brachytherapy (group 1), focal low-dose-rate brachytherapy (group 2) and active surveillance (group 3). The study’s primary outcomes are quality of life after the procedure and time without biochemical disease recurrence. The secondary outcomes are early and late genitourinary and gastrointestinal reactions after the focal high-dose and low-dose-rate brachytherapies and evaluation of the importance and significance of in vivo dosimetry used for high-dose-rate brachytherapy.Ethics and disseminationBioethics committee approval was obtained before this study. The trial results will be published in peer-reviewed journals and at conferences.Trial registration numberVilnius regional bioethics committee; approval ID 2022/6-1438-911.