Outcome and feasibility of radiotherapy bridging in large B-cell lymphoma patients receiving CD19 CAR T in the UK.

Radiotherapy (RT) has potential synergistic effects with chimeric antigen receptor (CAR) T but is not widely used as bridging therapy due to logistical challenges and lack of standardised protocols. We analysed RT bridging in a multicentre national cohort of large B-cell lymphoma patients approved for 3L axicabtagene ciloleucel or tisagenlecleucel across 12 UK centres. Of 763 approved patients, 722 were leukapheresed, 717 had data available on bridging therapy. 169/717 (24%) received RT bridging, 129 as single modality and 40 as combined modality treatment (CMT). Of 169 patients, 65.7% had advanced stage, 36.9% bulky disease, 86.5% elevated LDH, 41.7% international prognostic index (IPI) ≥3 and 15.2% double/triple hit at the time of approval. Use of RT bridging varied from 11% to 32% between centres and increased over time. Vein-to-vein time and infusion rate did not differ between bridging modalities. RT-bridged patients had favourable outcomes with 1-year progression-free survival (PFS) of 56% for single modality and 47% for CMT (1-year PFS 43% for systemic bridging). This is the largest cohort of LBCL patients receiving RT bridging prior to CAR T reported to date. Our results show that RT bridging can be safely and effectively used even in advanced stage and high-risk disease, with low dropout rates and excellent outcomes.

Emotional talk of patients with breast cancer during review appointments with therapeutic radiographers: effects on fears of cancer recurrence.

Fears of cancer recurrence (FCR) in patients with breast cancer may develop during radiotherapy. Radiographer communication with their patients may influence early survivorship FCR level. AIM: To investigate the management of emotional talk in patients with breast cancer attending their initial review appointments during radiotherapy and predict FCR at 6-8 weeks follow-up. METHODS: A mixed-methods observational study was conducted. Patients (consecutive sample, n = 60) with breast cancer, attending a major Scottish cancer centre, had their first two review appointments with their therapeutic radiographer (TR) audio-recorded. In addition, FCR was assessed (FCR7) at baseline and at 6-8 weeks following their final radiotherapy visit. Two TRs participated. Audio files were coded by the VR-CoDES system to identify emotional cues and therapeutic radiographer (TR) responses. Linear regression models were tested for fit and to identify factors associated with follow-up FCR, i.e. patient cues, responses by TR. RESULTS: Follow-up FCR was predicted negatively (robust estimator, p = .01) by level of patient emotional talk at the second review session. The provision of space by the TR, at the second session, to enable patients to expand their emotional utterances was also associated, but negatively (p = .01), with follow-up FCR. These effects were maintained after inclusion of covariates: age, treatment received and living conditions. CONCLUSIONS: Patient's emotional expression and TR responses at the second review meeting predicted follow-up FCR. The study shows the effect of communication processes on this specific distress component of the patient's survivorship experience. TRIAL REGISTRATION: NCT02599506.

Fear of cancer recurrence trajectory during radiation treatment and follow-up into survivorship of patients with breast cancer.

BACKGROUND: Fear of cancer recurrence (FCR) has been shown to be higher in patients treated with external beam radiotherapy (RT) compared to those untreated. However, little is known about the dynamics of patient's FCR during and after RT. The aim of this study was to examine FCR levels in a longitudinal panel design with breast cancer patients receiving RT. METHODS: Consecutive newly-diagnosed breast cancer patients (n = 94) attending a single cancer centre were invited to complete a 7-item FCR scale (FCR7) that was collected weekly by paper instrument and at a follow-up phone call 6-8 weeks after completion of RT. Descriptive statistics, and Latent Growth Curve Modelling (LGCM) were utilised to analyse the data. RESULTS: Women who were younger, single/separated, had chemotherapy, had extra boost radiation treatment, taking Herceptin and treated by 4-field technique reported higher recurrence fear at baseline. There was strong evidence of substantial variation in the trajectory of FCR (z = - 3.54, p < .0001). The average trajectory of FCR over RT was negative (unstandardized estimate = - 0.59) and associated with FCR follow-up level (standardised estimate = 0.36, z = 3.05, p < .002), independent of baseline recurrence fears. CONCLUSION: Patients vary in their trajectory of recurrence fears over RT which predicts FCR approximately 2 months following treatment. Review appointments by therapy radiographers presents an opportunity to intervene in FCR trajectories. TRIAL REGISTRATION: ClinicalTrials.gov: NCT02599506 . Prospectively registered on 11th March 2015.

Does emotional talk vary with fears of cancer recurrence trajectory? A content analysis of interactions between women with breast cancer and their therapeutic radiographers.

Fears of cancer recurrence (FCR) in patients with breast cancer are hypothesised to develop over the period from diagnosis, through treatment and thereafter. A crucial point may be the contact that patients have with their therapeutic radiographer in review appointments. The study aimed to (1) describe and categorise the content of the identified emotional talk, and (2) consider the evidence for an association of content with FCR trajectory. METHODS: A concurrent mixed methods approach was applied as part of a larger investigation (FORECAST) of breast cancer patients (n=87). Patients completed a daily diary during their radiotherapy treatment. Audio recordings were collected of review appointments. The Verona Coding Definitions of Emotional Sequences (VR-CoDES) system was used to code patient emotional cues and concerns (CCs). Purposeful sampling of the daily diary ratings identified 12 patients (30 consultations) with an increasing (n=6) or decreasing (n=6) FCR trajectory. The emotional talk of these patients at their weekly reviews was content analysed. RESULTS: Four themes were identified from 185 CCs: Physical Symptoms, Factors External to Hospital, Treatment, and Labelling Cancer. FCR decreasing trajectory group consultations were longer (p<0.02), expressed twice as many CCs as the increasing trajectory group (p<0.001), and were more likely to refer to cancer directly (p<0.05). CONCLUSIONS: The emotional content expressed matched features outlined in the Lee-Jones et al. (1997) FCR model, and showed evidence of avoidance in increasing FCR trajectory patients.

A multi-institutional analysis of intraoperative radiotherapy for early breast cancer: Does age matter?

BACKGROUND: Single-session intraoperative radiation therapy (IORT) minimizes treatment demands associated with traditional whole breast radiation therapy (WBRT) but outcomes on local disease control and morbidity among the elderly is limited. METHODS: A multi-institutional retrospective registry was established from 19 centers utilizing IORT from 2007 to 2013. Patient, tumor, and treatment variables were analyzed for ages <70 and ≥70. RESULTS: We evaluated 686 patients (<70 = 424; ≥70 = 262) who were margin and lymph node negative. Patients <70 were more likely to have longer operative time, oncoplastic closure, higher rates of IORT used as planned boost, and receive chemotherapy and post-operative WBRT. Wound complication rates were low and not significantly different between age groups. Median follow-up was 1.06 (range 0.51-1.9) years for < 70 and 1.01 (range 0.5-1.68) years for ≥ 70. There were 5 (0.73%) breast recurrences (4 in <70 and 1 ≥ 70, p = 0.65) and no axillary recurrences during follow-up. CONCLUSIONS: IORT was associated with a low rate of wound complication and local recurrence on short-term follow-up in this cohort.

Comparison of radiotherapy treatment plans for left-sided breast cancer patients based on three- and four-dimensional computed tomography imaging.

AIMS: The target volume for breast radiotherapy after conservative surgery for breast cancer may be affected by breathing motion. We investigated differences between conventional and four-dimensional computed tomography-based treatment planning and whether gating could improve dose volume parameters. MATERIALS AND METHODS: Ten patients with left-sided breast cancer and surgical clips at the excision site had conventional treatment planning computed tomography and four-dimensional computed tomography. Treatment plans using two tangential beams (6 MV X-rays) were optimised for target coverage and homogeneity using a field in field technique for the three-dimensional scan. This plan was applied directly to four-dimensional datasets representing individual phases of the breathing cycle and combinations thereof (average and maximum intensity projection). Optimised plans were generated for the maximum inhalation scan to study what could potentially be achieved in gated radiotherapy. RESULTS: Four-dimensional computed tomography with effective doses of around 10 mSv proved to be adequate for treatment planning in all patients. The average motion of the surgical clips was 3.7 mm (range 1.7-6.5mm), which was similar to the movement of the chest wall. With a margin of 7 mm for the whole breast to planning target volume, conventional three-dimensional computed tomography-based planning was found to adequately cover the target as seen on four-dimensional computed tomography without significant differences in normal tissue sparing. Improved sparing of the heart and lung could only be achieved by reducing the posterior margin of the target volume, which may be justified if four-dimensional computed tomography is used to determine the target and its motion. CONCLUSION: No significant benefit has been shown for the use of four-dimensional computed tomography-based planning if motion management is not implemented concurrently with a reduced posterior margin between clinical and planning target volumes.