Search

The ACROBAT pilot trial of early cryoprecipitate for severe postpartum haemorrhage used deferred consent procedures. Pretrial discussions with a patient and public involvement group found mixed views towards deferred consent. This study aimed to build an understanding of how the deferred consent procedures worked in practice, to inform plans for a full-scale trial.Qualitative interview study within a cluster-randomised pilot trial, involving four London maternity services.Individual interviews were conducted postnatally with 10 women who had received blood transfusion for severe postpartum haemorrhage and had consented to the trial. We also interviewed four 'recruiters'-two research midwives and two clinical trials practitioners who conducted trial recruitment.Consent procedures in the ACROBAT pilot trial were generally acceptable and the intervention was viewed as low risk, but most women did not remember much about the consent conversation. As per trial protocol, recruiters sought to consent women before hospital discharge, but this time pressure had to be balanced against the need to ensure women were not approached when distressed or very unwell. Extra efforts had to be made to communicate trial information to women due to the exhaustion of their recovery and competing demands for their attention. Participant information was further complicated by explanations about the cluster design and change in transfusion process, even though the consent sought was for access to medical data.Our findings indicate that deferred consent procedures raise similar concerns as taking consent when emergency obstetric research is occurring-that is, the risk that participants may conflate research with clinical care, and that their ability to process trial information may be impacted by the stressful nature of recovery and newborn care. A future trial may support more meaningful informed consent by extending the window of consent discussion and ensuring trial information is minimal and easy to understand.ISRCTN12146519.

Poster

The EMmY trial is sponsored by Queen Mary University of London and funded by Barts Charity, grant number MGU0373. EP and AH are also supported by the NIHR Collaboration for Leadership in Applied Health Research at Barts Health NHS Foundation Trust (NIHR ARC North Thames). KSK is distinguished investigator funded by the Beatriz Galindo (senior modality) grant to the University of Granada by the Spanish Ministry of Education., Objectives To determine the feasibility and acceptability of conducting a randomised trial on the effects of myo-inositol in preventing gestational diabetes in high-risk pregnant women. Design A multicentre, double-blind, placebo-controlled, pilot randomised trial with nested qualitative evaluation. Setting Five inner city UK National Health Service hospitals Participants Multiethnic pregnant women at 12+0 and 15+6 weeks’ gestation with risk factors for gestational diabetes. Interventions 2 g of myo-inositol or placebo, both included 200 μg folic acid, twice daily until delivery. Primary outcome measures Rates of recruitment, randomisation, adherence and follow-up. Secondary outcome measures Glycaemic indices (including homoeostatic model assessment-insulin resistance HOMA-IR), gestational diabetes (diagnosed using oral glucose tolerance test at 28 weeks and by delivery), maternal, perinatal outcomes, acceptability of intervention and costs. Results Of the 1326 women screened, 58% (773/1326) were potentially eligible, and 27% (205/773) were recruited. We randomised 97% (198/205) of all recruited women (99 each in intervention and placebo arms) and ascertained outcomes in 90% of women (178/198) by delivery. The mean adherence was 52% (SD 44) at 28 weeks’ and 34% (SD 41) at 36 weeks’ gestation. HOMA-IR and serum insulin levels were lower in the myo-inositol vs placebo arm (mean difference −0.6, 95% CI −1.2 to 0.0 and −2.69, 95% CI −5.26 to −0.18, respectively). The study procedures were acceptable to women and healthcare professionals. Women who perceived themselves at high risk of gestational diabetes were more likely to participate and adhere to the intervention. The powder form of myo-inositol and placebo, along with nausea in pregnancy were key barriers to adherence. Conclusions A future trial on myo-inositol versus placebo to prevent gestational diabetes is feasible. The intervention will need to be delivered in a non-powder form to improve adherence. There is a signal for efficacy in reducing insulin resistance in pregnancy with myo-inositol., Queen Mary University of London, Barts Charity MGU0373, NIHR Collaboration for Leadership in Applied Health Research at Barts Health NHS Foundation Trust (NIHR ARC North Thames), University of Granada by the Spanish Ministry of Education

Katie’s Team is funded by a grant from the Centre for Public Engagement Queen Mary University of London.

Importance The value of facedown positioning following surgery for large full-thickness macular holes is unknown. Objective To determine whether advice to position facedown postoperatively improves the outcome for large macular holes. Design, Setting, and Participants This randomized, parallel group superiority trial with 1:1 randomization stratified by site with 3 months’ follow-up was conducted at 9 sites across the United Kingdom and included participants with an idiopathic full-thickness macular hole of at least 400 μm minimum linear diameter and a duration of fewer than 12 months. All participants had vitrectomy surgery with peeling of the internal limiting membrane and injection of perfluoropropane (14%) gas, with or without simultaneous surgery for cataract. Interventions Following surgery, participants were randomly advised to position either facedown or face forward for 8 hours daily for 5 days. Main Outcomes and Measures The primary outcome was closure of the macular hole determined 3 months following surgery by masked optical coherence tomography evaluation. Secondary outcome measures at 3 months were visual acuity, participant-reported experience of positioning, and quality of life measured by the National Eye Institute Visual Function Questionnaire 25. Results A total of 185 participants (45 men [24.3%]; 156 white [84.3%]; 9 black [4.9%]; 10 Asian [5.4%]; median age, 69 years [interquartile range, 64-73 years]) were randomized. Macular hole closure was observed in 90 (85.6%) who were advised to position face forward and 88 (95.5%) advised to position facedown (adjusted odds ratio, 3.15; 95% CI, 0.87-11.41;P = .08). The mean (SD) improvement in best-corrected visual acuity at 3 months was 0.34 (0.69) logMAR (equivalent to 1 Snellen line) in the face-forward group and 0.57 (0.42) logMAR (equivalent to 3 Snellen lines) in the facedown group (adjusted mean difference, 0.22 [95 % CI, 0.05-0.38]; equivalent to 2 Snellen lines); 95% CI, 0.05-0.38;P = .01). The median National Eye Institute Visual Function Questionnaire 25 score was 89 (interquartile range, 76-94) in the facedown group and 87 (interquartile range, 73-93) in the face-forward group (mean [SD] change on a logistic scale, 0.08 [0.26] face forward and 0.11 [0.25] facedown; adjusted mean [SD] difference on a logistic scale, 0.02; 95% CI, −0.03 to 0.07;P = .41). Conclusions and Relevance The results do not prove that facedown positioning following surgery is more likely to close large macular holes compared with facing forward but do support the possibility that visual acuity outcomes may be superior. Trial Registration Isrctn.org Identifier: 12410596

Introduction Patients with IBD have difficulty revealing concerns about bowel control problems to clinicians,1 who do not actively ask about this symptom2 despite clinical guidelines recommending active-case finding in high-risk populations.3 With no available evidence to advise clinicians on how to ask, we aimed to determine the results of face-to-face or self-reported screening to identify faecal incontinence (FI) in IBD patients. We also asked about patients’ desire for interventions to improve continence. FI was defined in this study as: ‘ever having accidental passing of stool, faeces, poo into your underclothes, that you are either unaware of at the time, or unable to control’. Methods This cross-sectional survey used a study-specific questionnaire to screen participants at either face-to-face interview (by clinician/researcher) or anonymously (participant self-completed). Eligibility criteria: 18 to 80 years of age, confirmed diagnosis of IBD, no current fistula, no stoma, any level of disease activity. Disease activity was measured using the Harvey Bradshaw Index or the Simple Clinical Colitis Activity Index. Results Of 1336 participants, 48% were male; mean age 43 years (range 18–80); 55% had Crohn’s Disease (CD), 41% ulcerative colitis (UC), 4% IBD unclassified. FI (occurring ever) was reported by 63% of 772 screened face-to-face and 56% of 564 self-report participants (p=0.012). A total of 38.7% of all respondents expressed interest in an intervention for FI. Patients with CD were more likely to report FI than those with UC (p≤0.05). FI was reported by 49% of participants in remission, and by 59%, 83% and 93% of participants with mild, moderate and severe relapse of IBD respectively (p≤0.001). Conclusions Bowel control problems are very common in patients with IBD (including in remission) and these symptoms can be identified by face-to-face interview and postal screening. Interest in interventions for FI is expressed by 38.7 of patients with IBD. References . Dibley L, Norton C. Experience of fecal incontinence in people with inflammatory bowel disease: self-reported experiences among a community sample. Inflammatory Bowel Diseases2013;19(7):1450–62. . Dibley L, Norton C. Help-seeking for fecal incontinence among people with inflammatory bowel disease. JWOCN 2013;40(6):631–638. . National Institute for Health and Clinical Excellence. Management of faecal incontinence in adults. London: NICE;2007. Report No.: CG 49.

BACKGROUND: A phase I multicentre trial was conducted to define the recommended dose of capecitabine in combination with oxaliplatin and irinotecan (OCX) in metastatic colorectal cancer. PATIENTS AND METHODS: Patients with performance status (PS) < 2 and adequate haematological, renal and liver function received oxaliplatin 70 mg/m(2) on days 1 and 15, irinotecan 100 mg/m(2) on days 8 and 22 and one of five dose levels (DL 1-5, between 800 and 1,600 mg/ m(2)) of capecitabine on days 1-29 every 5 weeks. RESULTS: 23 patients received a median of 3 cycles. 3 dose-limiting toxicities occurred (DL 1: grade 3 (G3) elevated alkaline phosphatase; DL 5: 1 patient G4 hyperglycaemia/G3 diarrhoea and 1 sudden death). The most common severe adverse event was G3 diarrhoea (13%). Severe haematotoxicity was rare. Therapy was stopped mainly due to metastasectomy or tumour progression (7 patients each). 8 patients reached a partial response. Median time to progression and overall survival (OS) were 8.0 and 21.9 months, respectively. CONCLUSIONS: The recommended capecitabine dose in this schedule is 1,400 mg/m(2) daily. The OCX regimen is well tolerated. The response rate was surprisingly low with progression-free survival (PFS) and OS within the range of a triple combination. Further studies in combination with targeted agents are warranted.

We developed a novel diagram to depict patient flow and outcomes in clinical trials. In contrast to flow diagrams such as the CONSORT chart, our diagram enables individual patient histories to be traced and depicts important patterns of treatment administration and outcomes, such as response and adverse events. Also, it is particularly useful for multimodal treatments or a sequence of different therapies where the CONSORT flow chart is less informative and can be confusing.

To determine the efficacy, impact on quality-of-life (QoL) and tolerability of two different irinotecan administration schedules in combination with capecitabine as first-line treatment of metastatic colorectal cancer.We carried out a randomized phase II trial to select one of the following treatment regimens for further investigation: weekly irinotecan at a dose of 70 mg/m(2) days 1, 8, 15, 22, 29 (arm A) or 3-weekly irinotecan at a dose of 300/240 mg/m(2) day 1 and days 22 (arm B) in combination with capecitabine 1000 mg/m(2) twice daily days 1-14 and days 22-35 every 6 weeks.Seventy-five patients with good performance status entered the trial. The two arms were well balanced for relevant patient and disease characteristics. The most frequent toxic effects were grade 3/4 diarrhea (arm A: 34%, B: 19%), grade 3/4 neutropenia (A: 5%, B: 19%) and grade 2/3 alopecia (A: 26%, B: 65%). Other grade 3/4 toxic effects were rare (5%). Response rates were 34% [95% confidence interval (CI) 20% to 51%] in arm A and 35% (95% CI: 20% to 53%) in arm B. Median time to progression was 6.9 (4.6-10.1) and 9.2 (7.9-11.5) months and median overall survival was 17.4 (12.6-23.0+) and 24.7 (16.3-26.4+) months. Patients with an objective tumor response reported better physical well-being (P0.01), mood (P0.05), functional performance (P0.05) and less effort to cope (P0.05) compared with the non-responders and stable disease patients.The primary end point of this study was the objective response rate and based on the statistical design of the trial, the 3-weekly irinotecan schedule was selected over weekly irinotecan administration. The 3-weekly irinotecan schedule also seemed advantageous in terms of grade 3/4 diarrhea, time to progression, overall survival and patient convenience, but the study was not designed to detect differences in these parameters. In addition, tumor response was shown to have a beneficial effect on QoL indicators.

Objective Excessive haemorrhage at caesarean section requires the use of donor (allogeneic) blood transfusion. The SALVO trial assessed whether the routine use of cell salvage during caesarean section can reduce the need for donor blood transfusion. Study Design We conducted a randomised controlled trial (26 UK obstetric units; June 2013 through April 2016) of routine cell salvage use (intervention) vs. current standard of care without routine salvage use (control) in caesarean section among women at risk of haemorrhage. We used multivariable models, adjusting for stratification variables and prognostic factors identified a priori, to compare rates of donor blood transfusion (primary outcome) and fetomaternal haemorrhage ≥2ml in RhD-negative women with RhD-positive baby (one of the secondary outcomes) between groups. Results Of 3028 women randomised, 2990 were analysed (after exclusions for vaginal delivery or hospital transfer after randomisation). Of 1498 assigned to intervention, 95.6% had cell salvage deployed (50.8% had salvaged blood returned; mean 259.9 ml) vs. 3.9% of 1492 assigned to control. Donor blood transfusion rates were lower in the intervention group than in control (2.5% vs. 3.5%, adjusted odds ratio [OR] 0.65, 95% confidence interval [CI] 0.42 to 1.01). No case of amniotic fluid embolism was observed. Fetomaternal haemorrhage was higher with intervention vs. control (25.6% vs. 10.5%, adjusted OR 5.63, 95% CI 1.43 to 22.14). Conclusion There was modest evidence for an effect of routine use of cell salvage during caesarean section on donor blood transfusion. The increased fetomaternal haemorrhage emphasises the need for adherence to guidance on anti-D prophylaxis and for research on risks of alloimmunisation to RhD and other red cell antigens following cell salvage. (Funder: UK National Institute of Health Research Health Technology Assessment programme, ISRCTN66118656).

BACKGROUND: To determine the activity and tolerability of adding cetuximab to the oxaliplatin and capecitabine (XELOX) combination in first-line treatment of metastatic colorectal cancer (MCC). PATIENTS AND METHODS: In a multicenter two-arm phase II trial, patients were randomized to receive oxaliplatin 130 mg/m(2) on day 1 and capecitabine 1000 mg/m(2) twice daily on days 1-14 every 3 weeks alone or in combination with standard dose cetuximab. Treatment was limited to a maximum of six cycles. RESULTS: Seventy-four patients with good performance status entered the trial. Objective partial response rates after external review and radiological confirmation were 14% and 41% in the XELOX and in the XELOX + Cetuximab arm, respectively. Stable disease has been observed in 62% and 35% of the patients, with 76% disease control in both arms. Cetuximab led to skin rash in 65% of the patients. The median overall survival was 16.5 months for arm A and 20.5 months for arm B. The median time to progression was 5.8 months for arm A and 7.2 months for arm B. CONCLUSION: Differences in response rates between the treatment arms indicate that cetuximab may improve outcome with XELOX. The correct place of the cetuximab, oxaliplatin and fluoropyrimidine combinations in first-line treatment of MCC has to be assessed in phase III trials.

Background: Paclitaxel and capecitabine have proven activity in the treatment of metastatic breast cancer (MBC). Paclitaxel increases the expression of thymidine phosphorylase, the enzyme that activates capecitabine. The purpose of this study was to evaluate the efficacy and tolerability of capecitabine in combination with weekly paclitaxel largely as first-line therapy in patients with MBC. Patients and Methods: From April 2002 to September 2004, 19 patients with MBC received oral capecitabine (1,000 mg/m2 twice daily on days 1–14) plus i.v. paclitaxel (80 mg/m2 on days 1, 8 and 15) in a 21-day cycle for a maximum of 6 cycles. Results: After a median follow-up of 19.3 months the overall response rate was 63% with 1 complete response (5%) and 11 partial responses (58%). Disease was stabilized in 1 patient (5%) and 3 patients had progressive disease (16%). Three patients were unable to be assessed for response to treatment. Median time to progression was 3.3 months, median time to treatment failure 3.0 months and median overall survival 13.8 months. A substantial number of patients experienced major side effects. The most common treatment-related adverse events were hand-foot syndrome (53%; grade 3: 37%), alopecia (42%; grade 3: 26%), diarrhea (32%; grade 3: 11%) and neurotoxicity (32%; grade 3: 16%). Hematologic toxicities were uncommon. Conclusion: The combination of capecitabine and paclitaxel appears to be active in MBC but the safety profile with the dosages used in this trial was unacceptably high and led to a short time to treatment failure. However, based on the efficacy data alternative schedules deserve further evaluation.

3551 Background: XELOX is a valuable alternative to continuous infusion FOLFOX type regimens in the treatment of MCC (Borner et al, JCO 2002, 1759). Cetuximab is an EGFR antibody, which has been shown to improve the efficacy of chemotherapy. A phase II study in first-line treatment of MCC has demonstrated a high response rate combining cetuximab with FOLFOX (Tabernero et al, Proc ASCO 2004, 3512). Methods: Multicenter, randomized two-arm phase II trial: OXA 130 mg/m2 day 1 and oral CAP 1000 mg/m2 bid days 1–14 every 21 days alone or in combination with cetuximab 250 mg/m2 weekly after a loading dose of 400 mg/m2. Treatment was limited to a maximum of 6 cycles. With 37 patients in each arm, the power was 90% to select the truly better arm if the true between-arm difference in response rate (RECIST) is at least 15%. The study was open for accrual until October 2005. Results: We present here the results of 74 patients included in the study. In 67 patients the first response data are available (investigators’ assessment after 3 cycles). The two arms are well balanced for relevant patient, disease and treatment characteristics. The study treatment was well tolerated with grade 3/4 toxicities in < 10% of the cycles in each arm. The frequency of side effects was balanced, but with more frequent skin toxicity in the cetuximab arm (6% versus 0% grade 3/4). Conclusions: Cetuximab seems to positively interact with XELOX in terms of efficacy but not toxicity. The cetuximab/XELOX combination appears to be a valuable option in first-line treatment of MCC especially if high response rates are a primary objective. This trial was supported in part by Merck KGaA and Sanofi-Aventis Switzerland. [Table: see text] No significant financial relationships to disclose.