Retrospective comparison of neoadjuvant chemoradiation (nCRT) +/- surgery using the CROSS trial regimen and definitive chemoradiation (dCRT) with carboplatin (C) and paclitaxel (P) in esophageal (EC), and gastroesophageal junction cancer (GEJC) in Canada.

2020 ◽  
Vol 38 (4_suppl) ◽  
pp. 313-313
Author(s):  
Sidra Khalid ◽  
Wilma M. Hopman ◽  
Kiran Virik
Keyword(s):  
Real World ◽  
Gastroesophageal Junction ◽  
Locally Advanced ◽  
Outcome Data ◽  
World Population ◽  
Trial Protocol ◽  
Real World Data ◽  
Eligibility Criteria ◽  
Trimodality Therapy ◽  
The Cross

313 Background: Trimodality therapy using the CROSS trial protocol is an accepted standard of care for locally advanced EC and GEJC. For medically inoperable patients (pts), CRT has been a standard. CRT with C and P is an option in the definitive setting. This single institution review aims to assess the application and outcomes of the CROSS trial protocol in our real world population. Methods: From June 2012 until June 2018, a retrospective review was undertaken of 83 pts who underwent CRT with C and P with trimodaility or upfront definitive intent. 65 pts underwent nCRT; 40 proceeded to surgery. 18 had upfront dCRT. Pt demographics, clinical, pathological, treatment and surgical characteristics were assessed. These factors and outcomes were analyzed in exploratory analyses. Results: Of the 83 pts: median (m) age was 69 yrs (range 48-82), 34% were ≥ 75 yrs, 80% were male, 21% had CAD, 43% GERD, 23% Barrett’s, 77% adenocarcinoma, m tumor length was 5 cm, 36% had BMI > 30 and 80% were Siewert I tumors. The m RT dose was 50.4 Gy, m chemo doses were 5, m time to CRT was 69 days and m time from CRT to surgery was 66 days. 23% nCRT pts and 72% dCRT pts were ≥ 75 yrs and 49% and 33% of these respectively had no interruptions to CRT. Pts who underwent surgery were younger (p = 0.04) and weighed more (p = 0.05). Pts ≥75 yrs were likely to have dCRT (p = 0.001). For nCRT and surgery, nCRT only and dCRT respectively, median overall survival (mOS) was 35.5, 12.1 and 17.1 months (M) (log rank p = 0.08), PFS was 32.2, 10 and 9.6M (log rank p = 0.01). Compared to the other 2 groups, pts who underwent surgery had: no COPD (p = 0.004), less CAD (p = 0.003), less renal impairment (p = 0.023) and had lower esophageal tumors (p = 0.027). mOS for pts who had nCRT was 28.9M and 17.1M for dCRT (log rank p = 0.70). Further correlative outcome data will be presented. Conclusions: Despite the broadening of CROSS trial eligibility criteria in our real world data, there appears to be a survival benefit with trimodality therapy. The use of C and P in dCRT may be of value especially in the elderly, and requires further study.

Neoadjuvant chemoradiation (NCRT) for esophageal (EC) or gastroesophageal junction cancer (GEJC): A Canadian single institution real-world experience using the CROSS trial regimen.

2019 ◽  
Vol 37 (27_suppl) ◽  
pp. 25-25
Author(s):  
Sidra Khalid ◽  
Wilma M. Hopman ◽  
Beatrice Preti ◽  
Anna T. Tomiak ◽  
Kiran Virik
Keyword(s):  
Clinical Trial ◽  
Real World ◽  
Gastroesophageal Junction ◽  
Trial Protocol ◽  
Single Institution ◽  
Real World Data ◽  
Trimodality Therapy ◽  
World Data ◽  
The Real ◽  
The Cross

25 Background: NCRT followed by surgery per the CROSS trial regimen is an accepted standard of care in the treatment of EC and GEJC. When treatments are used in the real-world setting, there are often patient, treatment and potential outcome differences compared to the original clinical trial. The study aim was to assess the real-world application and outcomes of the CROSS trial protocol. Methods: A retrospective chart review was undertaken of 83 patients (pts) with EC or GEJC who were treated from June 2012 to June 2018 with CRT. 65 pts were with NCRT intent to proceed to surgery. Pts’ demographics, clinical, pathological, treatment and surgical characteristics were assessed and exploratory analyses were conducted to review these factors and outcomes. Analyses included Chi-square, t-tests and Kaplan-Meier. Results: For pts who underwent NCRT (n = 65): median age was 68 yrs (range 52-80), male 79%, adenocarcinoma 82%, median (m) tumor length 5 cm, GERD 43%, clinical stage II/III 95%, and BMI > 30 in 37%. 80% completed CRT with RT ≥ 41.4 Gy; of these 88% had ≥ 50.4 Gy. Delay/interruption in chemotherapy occurred in 46% and in RT 37%. Pts who underwent surgery were younger (p = 0.04) and weighed more (p = 0.05). mOS was 37 months (M) v 14 M in those who started CRT ≤ 8 weeks (w) from diagnosis v > 8 w (p = 0.10). The median time from CRT to surgery was 8.9 w. 40 pts had surgery with a complete response in 38% and a R0 resection in 98%. Postoperative major and minor complications occurred in 67%. Those < 75 yrs v ≥ 75 yrs had a mOS of 32 M v 15 M respectively (log rank p = 0.46). 25 pts did not get surgery; 28% was due to death/progression. Pts who proceeded to surgery had a mOS of 35 M v 12 M in pts who did not go to surgery (log rank p = 0.002). Further correlative outcome data will be presented. Conclusions: Real-world data in our center showed patient, tumor and treatment differences compared to the CROSS trial protocol. Despite the broadening of eligibility and treatment criteria, survival in a single institution setting is maintained with trimodality therapy compared to NCRT alone. Real-world data is of value in the assessment of therapeutic validity of clinical trial data.

scholarly journals P-94 Unicentric real-world data from esophageal cancer neoadjuvant treatment according to the CROSS trial protocol

2021 ◽  
Vol 32 ◽  
pp. S129-S130
Author(s):  
J. Mendonça ◽  
C. Silva ◽  
C. Calçada ◽  
C. Fardilha ◽  
J. Gagean ◽  
...  
Keyword(s):  
Esophageal Cancer ◽  
Real World ◽  
Neoadjuvant Treatment ◽  
Trial Protocol ◽  
Real World Data ◽  
World Data ◽  
The Cross

scholarly journals Ramucirumab plus paclitaxel as second-line treatment in patients with advanced gastric or gastroesophageal junction adenocarcinoma: a nationwide real-world outcomes in Korea study (KCSG-ST19-16)

2021 ◽  
Vol 13 ◽  
pp. 175883592110428
Author(s):  
Hye Sook Han ◽  
Bum Jun Kim ◽  
Hee-Jung Jee ◽  
Min-Hee Ryu ◽  
Se Hoon Park ◽  
...  
Keyword(s):  
Overall Survival ◽  
Confidence Interval ◽  
Real World ◽  
Gastroesophageal Junction ◽  
Locally Advanced ◽  
Line Treatment ◽  
Second Line ◽  
First Line ◽  
Real World Data ◽  
World Data

Background: Ramucirumab as monotherapy or in combination with paclitaxel is a second-line treatment option recommended for patients with locally advanced unresectable or metastatic gastric or gastroesophageal junction (GEJ) adenocarcinoma. However, real-world data from large study cohorts focused on ramucirumab plus paclitaxel in gastric cancer are limited. Methods: The study population comprised all patients with gastric or GEJ cancer who received ramucirumab plus paclitaxel in South Korea between 1 May 2018 and 31 December 2018. We included patients with advanced gastric or GEJ adenocarcinoma and disease progression after first-line platinum and fluoropyrimidine-containing combination chemotherapy. Results: In total, 1063 patients were included in the present study. The objective response rate and disease control rate were 15.1% and 57.7%, respectively. The median progression-free survival was 4.03 months (95% confidence interval, 3.80–4.27) and the median overall survival was 10.03 months (95% confidence interval, 9.33–10.73). Grade 3 or higher treatment-related adverse events with incidence of ⩾5% were neutropenia (35.1%) and anemia (10.5%). Based on multivariable analysis, overall survival was negatively associated with Eastern Cooperative Oncology Group performance status ⩾2, weight loss ⩾10% in the previous 3 months, GEJ of primary tumor, poor or unknown histologic grade, number of metastatic sites ⩾3, presence of peritoneal metastasis, no prior gastrectomy, and time to second-line since first-line treatment <6 months. Conclusion: Our large-scale, nationwide, real-world data analysis of an unselected real-world population adds evidence for the efficacy and safety of second-line ramucirumab plus paclitaxel in patients with locally advanced unresectable or metastatic gastric or GEJ adenocarcinoma.

Real-world outcomes of second-line ramucirumab plus paclitaxel in patients with advanced gastric or gastroesophageal junction adenocarcinoma: A nationwide retrospective study in Korea (KCSG-ST19-16).

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 4056-4056
Author(s):  
Dae Young Zang ◽  
Hye Sook Han ◽  
Bum Jun Kim ◽  
Hee-Jung Jee ◽  
Young Ju Suh ◽  
...  
Keyword(s):  
Overall Survival ◽  
Retrospective Study ◽  
Adverse Events ◽  
Real World ◽  
Gastroesophageal Junction ◽  
Locally Advanced ◽  
Line Treatment ◽  
Second Line ◽  
First Line ◽  
Real World Data

4056 Background: Ramucirumab as monotherapy or in combination with paclitaxel is a second-line treatment option recommended for patients with locally advanced unresectable or metastatic gastroesophageal junction (GEJ) or gastric adenocarcinoma. However, real-world data of large samples focused on ramucirumab plus paclitaxel in gastric cancer are limited. We conducted a nationwide retrospective study to evaluate the efficacy, safety, and factors potentially associated with survival in patients with gastric or GEJ adenocarcinoma who received second-line ramucirumab plus paclitaxel in a real-world setting. Methods: The study population comprised all patients with gastric or GEJ cancer who received ramucirumab plus paclitaxel in South Korea between May 1, 2018, and December 31, 2018. We included patients with advanced gastric or GEJ adenocarcinoma and disease progression after first-line platinum and fluoropyrimidine-containing combination chemotherapy. Results: A total of 1,063 patients with advanced gastric or GEJ adenocarcinoma who received ramucirumab plus paclitaxel were included. The objective response rate and disease control rate were 15.1% and 57.7%, respectively; the median progression-free survival was 4.03 months (95% CI, 3.80–4.27), and the median overall survival was 10.3 months (95% CI, 9.33–10.73). The common treatment-related adverse events (TRAEs) at any grade were neutropenia (44.7%), anemia (41.8%), neuropathy (29.1%), fatigue (25.9%), and anorexia (25.0%). Grade 3 or higher TRAEs with incidences of ≥5% were neutropenia (35.1%) and anemia (10.5%). Adverse events of special interest were infrequent, including hypertension (2.1%) and proteinuria (3.0%). Based on multivariate analysis, overall survival was negatively associated with Eastern Cooperative Oncology Group performance status ≥2, weight loss in the previous 3 months ≥10%, GEJ of primary tumor, poor or unknown histology grade, number of metastatic sites ≥3, presence of peritoneal metastasis, no prior gastrectomy, and time to second-line since first-line treatment < 6 months. Conclusions: Our large-scale, nationwide, real-world data analysis of an unselected real-world population added evidence for the efficacy and safety of second-line ramucirumab plus paclitaxel in patients with locally advanced unresectable or metastatic gastric or GEJ adenocarcinoma. Clinical trial information: NCT04192734.

Proportion of Adult AML Patient Population Receiving Allogeneic Stem Cell Transplantation and Long-Term Outcome: Real World Data From the Swedish National Acute Leukemia Registry.

Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 2289-2289
Author(s):  
Gunnar Juliusson ◽  
Lars Möllgård ◽  
Sören Lehmann ◽  
Åsa Rangert Derolf ◽  
Ulf Tidefelt ◽  
...  
Keyword(s):  
Acute Leukemia ◽  
Cause Of Death ◽  
Real World ◽  
Outcome Data ◽  
World Population ◽  
Real World Data ◽  
Term Outcome ◽  
Long Term Outcome ◽  
Geographical Regions

Abstract Abstract 2289 Poster Board II-266 Allogeneic transplantation is established post-remission therapy in CR1 for AML patients with high risk features, but not in low-risk disease. However, most have intermediate risk, where indications for SCT are less clear. Most SCT outcome data derive from transplant cohorts, and data on patients studied from diagnosis are scarce. Real world population-based data on the effects of transplant is lacking. We have evaluated the role of transplant for AML in the updated Swedish National Acute Leukemia Registry (Blood 2009;113:4179), which covers 98% of all adult patients nationwide diagnosed 1997-2006 and followed up to 2009, i.e., a median observation on survivors of >6 years. Sweden has a population of 9 million people with full access to high-quality therapy for AML including SCT. Registry data were validated from regional transplant center databases. Of 3878 patients with acute leukemia, 3312 had AML (1669 males and 1643 females), and 457 had ALL; 109 had undifferentiated/unclassified AL. AlloSCT in AML non-APL was performed in 8% of patients aged 60-64 years at diagnosis, and 2% of those aged 65-69 years. We then focused on adult AML non-APL patients <60 years (n=782) of which 38% had alloSCT (n=294), similar in both sexes. Two thirds of the alloSCTs were performed in CR1 (64% for males and 72% for females), 22% in CR2 or later CR, and 10% not in CR. Donors were matched unrelated in 48% of transplants in CR1 and ‘not in CR', and 60% in CR2. Of patients having AlloSCT in CR1, 62% are currently alive, as compared to 50% for CR2 patients, and 31% of others. Corresponding figures for sib and unrelated donors were 65% and 56% in CR1, 50% and 53% in CR2, and 40% and 22% if not in CR. Transplant-reported mortality (TRM), i.e. death in CR after SCT was reported in 13% (with another 6% without reported cause of death). Interestingly, these figures were similar for SCT performed in CR1, CR2 and ‘not in CR'. TRM in CR1 was 10(-12)% with sib donor and 16(-19)% with MUD; in CR2 12(-33)% and 17(-25)%; and if not in CR 13(-20)% and 14(-21)%, respectively; ranges include those with no reported cause of death. Swedish healthcare is divided into six geographical regions, all with full therapeutic options and minimal referral in between regions. We are therefore able to study the influence on outcome in relation to the proportion of transplanted AML patients. One region (#3) performed alloSCT in 63% of AML non-APL patients <60 years, another (#2) in 23%, and the remaining four regions in between 33% and 41%. The corresponding proportions for alloSCT in CR1 were 45% (#3), 16% (#2), and 23 through 28% (others). The main reason for this difference was that alloSCT was frequently performed also in ages 40-59 years in region #3. The 8-year total survival of the overall AML non-APL population <60 years (i.e. including those with no SCT) was 52% in region #3, and ranged from 32% through 39% in the other five regions. This real world report on the use of SCT for AML points at existing regional differences in management, and suggests a possible relation to long-term outcome. Disclosures: Möllgård: Celgene: Research Funding.

scholarly journals Real-World Data for Planning Eligibility Criteria and Enhancing Recruitment: Recommendations from the Clinical Trials Transformation Initiative

2021 ◽  
Author(s):  
Scott R. Evans ◽  
Dianne Paraoan ◽  
Jane Perlmutter ◽  
Sudha R. Raman ◽  
John J. Sheehan ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Real World ◽  
Real World Data ◽  
Eligibility Criteria ◽  
World Data ◽  
Study Planning ◽  
Efficiency And Effectiveness ◽  
Multi Stakeholder ◽  
Functional Teams ◽  
Data Driven Decisions

AbstractThe growing availability of real-world data (RWD) creates opportunities for new evidence generation and improved efficiency across the research enterprise. To varying degrees, sponsors now regularly use RWD to make data-driven decisions about trial feasibility, based on assessment of eligibility criteria for planned clinical trials. Increasingly, RWD are being used to support targeted, timely, and personalized outreach to potential trial participants that may improve the efficiency and effectiveness of the recruitment process. This paper highlights recommendations and resources, including specific case studies, developed by the Clinical Trials Transformation Initiative (CTTI) for applying RWD to planning eligibility criteria and recruiting for clinical trials. Developed through a multi-stakeholder, consensus- and evidence-driven process, these actionable tools support researchers in (1) determining whether RWD are fit for purpose with respect to study planning and recruitment, (2) engaging cross-functional teams in the use of RWD for study planning and recruitment, and (3) understanding patient and site needs to develop successful and patient-centric approaches to RWD-supported recruitment. Future considerations for the use of RWD are explored, including ensuring full patient understanding of data use and developing global datasets.

scholarly journals Leveraging Real-World Data for the Selection of Relevant Eligibility Criteria for the Implementation of Electronic Recruitment Support in Clinical Trials

2021 ◽  
Vol 12 (01) ◽  
pp. 017-026
Author(s):  
Georg Melzer ◽  
Tim Maiwald ◽  
Hans-Ulrich Prokosch ◽  
Thomas Ganslandt
Keyword(s):  
Data Warehouse ◽  
Real World ◽  
Chart Review ◽  
Patient Recruitment ◽  
Real World Data ◽  
Eligibility Criteria ◽  
Health Records ◽  
World Data ◽  
Paper Chart ◽  
Data Elements

Abstract Background Even though clinical trials are indispensable for medical research, they are frequently impaired by delayed or incomplete patient recruitment, resulting in cost overruns or aborted studies. Study protocols based on real-world data with precisely expressed eligibility criteria and realistic cohort estimations are crucial for successful study execution. The increasing availability of routine clinical data in electronic health records (EHRs) provides the opportunity to also support patient recruitment during the prescreening phase. While solutions for electronic recruitment support have been published, to our knowledge, no method for the prioritization of eligibility criteria in this context has been explored. Methods In the context of the Electronic Health Records for Clinical Research (EHR4CR) project, we examined the eligibility criteria of the KATHERINE trial. Criteria were extracted from the study protocol, deduplicated, and decomposed. A paper chart review and data warehouse query were executed to retrieve clinical data for the resulting set of simplified criteria separately from both sources. Criteria were scored according to disease specificity, data availability, and discriminatory power based on their content and the clinical dataset. Results The study protocol contained 35 eligibility criteria, which after simplification yielded 70 atomic criteria. For a cohort of 106 patients with breast cancer and neoadjuvant treatment, 47.9% of data elements were captured through paper chart review, with the data warehouse query yielding 26.9% of data elements. Score application resulted in a prioritized subset of 17 criteria, which yielded a sensitivity of 1.00 and specificity 0.57 on EHR data (paper charts, 1.00 and 0.80) compared with actual recruitment in the trial. Conclusion It is possible to prioritize clinical trial eligibility criteria based on real-world data to optimize prescreening of patients on a selected subset of relevant and available criteria and reduce implementation efforts for recruitment support. The performance could be further improved by increasing EHR data coverage.

scholarly journals Real-World Data on Clinical Outcomes of Patients with Liver Cancer: A Prospective Validation of the National Cancer Centre Singapore Consensus Guidelines for the Management of Hepatocellular Carcinoma

Liver Cancer ◽  
2021 ◽  
pp. 1-16
Author(s):  
Xin Hui Chew ◽  
Rehena Sultana ◽  
Eshani N. Mathew ◽  
David Chee Eng Ng ◽  
Richard H.G. Lo ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Liver Cancer ◽  
Clinical Outcomes ◽  
Real World ◽  
Compliance Rate ◽  
Locally Advanced ◽  
Consensus Guidelines ◽  
Real World Data ◽  
World Data ◽  
Cancer Centre

<b><i>Introduction:</i></b> Real-world management of patients with hepatocellular carcinoma (HCC) is crucially challenging in the current rapidly evolving clinical environment which includes the need for respecting patient preferences and autonomy. In this context, regional/national treatment guidelines nuanced to local demographics have increasing importance in guiding disease management. We report here real-world data on clinical outcomes in HCC from a validation of the Consensus Guidelines for HCC at the National Cancer Centre Singapore (NCCS). <b><i>Method:</i></b> We evaluated the NCCS guidelines using prospectively collected real-world data, comparing the efficacy of treatment received using overall survival (OS) and progression-free survival (PFS). Treatment outcomes were also independently evaluated against 2 external sets of guidelines, the Barcelona Clinic Liver Cancer (BCLC) and Hong Kong Liver Cancer (HKLC). <b><i>Results:</i></b> Overall treatment compliance to the NCCS guidelines was 79.2%. Superior median OS was observed in patients receiving treatment compliant with NCCS guidelines for early (nonestimable vs. 23.5 months <i>p</i> &#x3c; 0.0001), locally advanced (28.1 vs. 22.2 months <i>p</i> = 0.0216) and locally advanced with macrovascular invasion (10.3 vs. 3.3 months <i>p</i> = 0.0013) but not for metastatic HCC (8.1 vs. 6.8 months <i>p</i> = 0.6300), but PFS was similar. Better clinical outcomes were seen in BCLC C patients who received treatment compliant with NCCS guidelines than in patients with treatment only allowed by BCLC guidelines (median OS 14.2 vs. 7.4 months <i>p</i> = 0.0002; median PFS 6.1 vs. 4.0 months <i>p</i> = 0.0286). Clinical outcomes were, however, similar for patients across all HKLC stages receiving NCCS-recommended treatment regardless of whether their treatment was allowed by HKLC. <b><i>Conclusion:</i></b> The high overall compliance rate and satisfactory clinical outcomes of patients managed according to the NCCS guidelines confirm its validity. This validation using real-world data considers patient and treating clinician preferences, thus providing a realistic analysis of the usefulness of the NCCS guidelines when applied in the clinics.

Augmenting Real-World Data Through Modeling Key Clinical Trial Eligibility Criteria: An Example of Patients With Non–small-Cell Lung Cancer Treated With Pembrolizumab

2021 ◽  
pp. 849-858
Author(s):  
Thomas Jemielita ◽  
Xiaoyun (Nicole) Li ◽  
Thomas Burke ◽  
Kai-Li Liaw ◽  
Wei Zhou ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Cell Death ◽  
Programmed Cell Death ◽  
Small Cell Lung Cancer ◽  
Real World ◽  
Small Cell ◽  
Small Cell Lung ◽  
Real World Data ◽  
Eligibility Criteria ◽  
Baseline Characteristics

PURPOSE To compare and characterize baseline characteristics and overall survival (OS) differences by key oncology eligibility criteria for real-world patients from the Flatiron Health database with advanced non–small-cell lung cancer (NSCLC) who received pembrolizumab monotherapy. METHODS Real world data (RWD) were from the Flatiron Health advanced NSCLC database and include patients who initiated pembrolizumab monotherapy (first, second, or third line of therapy) by November 30, 2019. At the data cutoff (May 31, 2020), the median survival follow-up time was 8.4 months. Eligible patients satisfy the criteria of Eastern Cooperative Oncology Group performance status of 0/1 and laboratory values indicative of adequate organ function. RWD were analyzed for all patients and patients with a programmed cell death ligand-1 tumor proportion score ≥ 1%. Patients were divided into three categories: ineligible, eligible, and unknown (who satisfy all observed criteria, with at least one missing). An augmented population was also formed, which combines the latter two groups through a propensity-based adjustment. RESULTS At the data cutoff, N = 3,877 patients with NSCLC received pembrolizumab monotherapy (1L = 2,682, 2L = 946, and 3L = 249). OS was consistently lower for the ineligible with similar survival for the eligible and augmented. Among all patients, the median OS in months (95% CI) was 8.2 (7.5 to 9.6), 16.3 (14.5 to 18.4), 16.4 (15.1 to 19.3), and 16.8 (15.6 to 18.5) for the ineligible (47%, n = 1,827), unknown (27%, n = 1,045), eligible (26%, n = 1,005), and augmented, respectively. The results were similar for patients with a programmed cell death ligand-1 tumor proportion score ≥ 1%. CONCLUSION Real-world patients who received pembrolizumab monotherapy and meet key clinical eligibility criteria exhibited similar baseline characteristics and OS profiles as the unknown and augmented patient groups. Population augmentation is a feasible approach for improving the power of RWD analysis.

scholarly journals A Comparison of the Randomized Clinical Trial Efficacy and Real-World Effectiveness of Tofacitinib for the Treatment of Inflammatory Bowel Disease: A Cohort Study

2019 ◽  
Author(s):  
Vivek A. Rudrapatna ◽  
Benjamin S. Glicksberg ◽  
Atul J. Butte
Keyword(s):  
Ulcerative Colitis ◽  
Clinical Trials ◽  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Real World ◽  
Controlled Trials ◽  
Real World Data ◽  
Eligibility Criteria ◽  
Primary Endpoints ◽  
Three Phase

AbstractBackgroundReal-world data are receiving attention from regulators, biopharmaceuticals and payors as a potential source of clinical evidence. However, the suitability of these data to produce evidence commensurate with randomized controlled trials (RCTs) and the best practices in their use remain unclear. We sought to compare the real-world effectiveness of Tofacitinib in the treatment of IBD against efficacy rates published by corresponding RCTs.MethodsElectronic health records at the University of California, San Francisco (UCSF) were queried and reviewed to identify 86 Tofacitinib-treated IBD patients through 4/2019. The primary endpoint was treatment effectiveness. This was measured by time-to-treatment-discontinuation and by the primary endpoints of RCTs in Ulcerative Colitis (UC) and Crohn’s Disease (CD). Endpoints were measured and analyzed following a previously published protocol and analysis plan.Findings86 patients (68 with UC, 18 with CD) initiated Tofacitinib for IBD treatment. Most of the data needed to calculate baseline and follow-up disease activity indices were documented within the EHR(77% for UC, 91% for CD). Baseline characteristics of the UCSF and RCT cohorts were similar, except for a longer disease duration and 100% treatment failure of Tumor Necrosis Factor inhibitors in the former. None of the UCSF cohort would have met the RCT eligibility criteria due to multiple reasons.The rate of achieving the RCT primary endpoints were highly similar to the published rates for both UC(16%, P=0·5) and CD (38%, P=0·8). However, treatment persistence was substantially higher: 69% for UC (week 52) and 75% for CD (week 26).InterpretationAn analysis of routinely collected clinical data can reproduce published Tofacitinib efficacy rates, but also indicates far greater treatment durability than suggested by RCTs including possible benefit in CD. These results underscore the value of real-world studies to complement RCTs.FundingThe National Institutes of Health and UCSF Bakar InstituteResearch in ContextEvidence before this studyTofacitinib is the most recently approved treatment for Ulcerative Colitis. Data related to treatment efficacy for either IBD subtype is generally limited, whether from controlled trials or real-world studies. A search of clinicaltrials.gov was performed in January 2019 for completed phase 2 or 3, interventional, placebo-controlled clinical trials matching the terms “Crohn’s Disease” OR “Ulcerative Colitis” in the conditions field, and matching “Placebo” AND “Tofacitinib” OR “CP-690,550”) in the Interventions field. We identified three Phase 3 trials for UC (OCTAVE trials, all initially reported in a single article in 2016) and three Phase 2 trials of CD (two published in the same article in 2017, one reported in 2014). The Phase 3 UC trials reported 57·6% pooled clinical response rate in the Tofacitinib-assigned groups after 8 weeks (induction), and a 37·5% pooled remission rate among eligible induction trial responders in the Tofacitinib-assigned groups at 52 weeks. The 2017 CD trial reported a 70·8% pooled rate of response or remission in the Tofacitinib-assigned groups after 8 weeks, and a 47·6% pooled rate of response or remission among enrolled induction-trial responders at 26 weeks. A bias assessment of both UC and CD trials indicated a high risk of attrition bias and unclear risk of bias related to conflicts of interest. We also performed a search of pubmed.gov in January 2019 using search terms (“Colitis” OR “Crohn’s”) AND (“Tofacitinib” OR “CP-690,550”) OR “real-world” to identify cohort studies of Tofacitinib efficacy in routine clinical practice. No studies meeting these criteria were identified.Added value of this studyThis is one of the early studies to closely compare the results of clinical trials with the continuously-updated data captured in the electronic health records, and the very the first to assess the efficacy-effectiveness gap for Tofacitinib. We found that none of the patients treated at our center thus far would have qualified for the clinical trial based on published eligibility criteria. We found that the drug appeared to perform similarly to its efficacy when using the endpoints reported in clinical trials, but treatment persistence was significantly greater than would have been expected from the reported trial outcomes: 69% for UC at week 52 and 75% for CD at week 26.Implications of all the available evidenceTofacitinib is an effective treatment for the Ulcerative colitis and may be efficacious for Crohn’s disease. Controlled trials may not be representative of real-world cohorts, may not be optimally designed to identify efficacious drugs, and may not accurately predict patterns of use in clinical practice. Further studies using real-world data as well as methods to enable their proper use are needed to confirm and continuously monitor the efficacy and safety of drugs, both for on- and off-label use.

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