scholarly journals Tenofovir Alafenamide in Multimorbid HIV-Infected Patients With Prior Tenofovir-Associated Renal Toxicity

2018 ◽  
Vol 5 (11) ◽  
Author(s):  
Laura N Walti ◽  
Julia Steinrücken ◽  
Andri Rauch ◽  
Gilles Wandeler
Keyword(s):  
Clinical Trials ◽  
Renal Function ◽  
Real World ◽  
Tenofovir Disoproxil Fumarate ◽  
Renal Toxicity ◽  
Real World Data ◽  
World Data ◽  
Persons Living With Hiv ◽  
Tenofovir Alafenamide ◽  
Living With Hiv

Abstract Although the use of tenofovir alafenamide (TAF), a new prodrug of tenofovir, was safe and efficacious in clinical trials, real-world data from multimorbid individuals are scarce. Among 10 persons living with HIV with previous tenofovir disoproxil fumarate–induced nephrotoxicity, renal function remained stable, and proteinuria decreased in several patients after the switch to TAF.

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 LDL-cholesterol change and goal attainment following statin intensity titration among Asians in primary care: a retrospective cohort study

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Hao Sen Andrew Fang ◽  
Qiao Gao ◽  
Mong Li Lee ◽  
Wynne Hsu ◽  
Ngiap Chuan Tan
Keyword(s):  
Primary Care ◽  
Clinical Trials ◽  
Cohort Study ◽  
Real World ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Goal Attainment ◽  
Real World Data ◽  
World Data ◽  
Asian Patients

Abstract Background Clinical trials have demonstrated that either initiating or up-titrating a statin dose substantially reduce Low-Density Lipoprotein-Cholesterol (LDL-C) levels. However, statin adherence in actual practice tends to be suboptimal, leading to diminished effectiveness. This study aims to use real-world data to determine the effect on LDL-C levels and LDL-C goal attainment rates, when selected statins are titrated in Asian patients. Methods A retrospective cohort study over a 5-year period, from April 2014 to March 2019 was conducted on a cohort of multi-ethnic adult Asian patients with clinical diagnosis of Dyslipidaemia in a primary care clinic in Singapore. The statins were classified into low-intensity (LI), moderate-intensity (MI) and high-intensity (HI) groups according to the 2018 American College of Cardiology and American Heart Association (ACC/AHA) Blood Cholesterol Guidelines. Patients were grouped into “No statin”, “Non-titrators” and “Titrators” cohorts based on prescribing patterns. For the “Titrators” cohort, the mean percentage change in LDL-C and absolute change in LDL-C goal attainment rates were computed for each permutation of statin intensity titration. Results Among the cohort of 11,499 patients, with a total of 266,762 visits, there were 1962 pairs of LDL-C values associated with a statin titration. Initiation of LI, MI and HI statin resulted in a lowering of LDL-C by 21.6% (95%CI = 18.9–24.3%), 28.9% (95%CI = 25.0–32.7%) and 25.2% (95%CI = 12.8–37.7%) respectively. These were comparatively lower than results from clinical trials (30 to 63%). The change of LDL-C levels due to up-titration, down-titration, and discontinuation were − 12.4% to − 28.9%, + 13.2% to + 24.6%, and + 18.1% to + 32.1% respectively. The improvement in LDL-C goal attainment ranged from 26.5% to 47.1% when statin intensity was up-titrated. Conclusion In this study based on real-world data of Asian patients in primary care, it was shown that although statin titration substantially affected LDL-C levels and LDL-C goal attainment rates, the magnitude was lower than results reported from clinical trials. These results should be taken into consideration and provide further insight to clinicians when making statin adjustment recommendations in order to achieve LDL-C targets in clinical practice, particularly for Asian populations.

scholarly journals Emulated Clinical Trials from Longitudinal Real-World Data Efficiently Identify Candidates for Neurological Disease Modification: Examples from Parkinson’s Disease

2020 ◽  
Author(s):  
Daphna Laifenfeld ◽  
Chen Yanover ◽  
Michal Ozery-Flato ◽  
Oded Shaham ◽  
Michal Rozen-Zvi ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Clinical Trials ◽  
Real World ◽  
Late Onset ◽  
Real World Data ◽  
World Data ◽  
Healthcare Data ◽  
Beneficial Effects ◽  
Disease Modifying

AbstractReal-world healthcare data hold the potential to identify therapeutic solutions for progressive diseases by efficiently pinpointing safe and efficacious repurposing drug candidates. This approach circumvents key early clinical development challenges, particularly relevant for neurological diseases, concordant with the vision of the 21stCentury Cures Act. However, to-date, these data have been utilized mainly for confirmatory purposes rather than as drug discovery engines. Here, we demonstrate the usefulness of real-world data in identifying drug repurposing candidates for disease-modifying effects, specifically candidate marketed drugs that exhibit beneficial effects on Parkinson’s disease (PD) progression. We performed an observational study in cohorts of ascertained PD patients extracted from two large medical databases, Explorys SuperMart (N=88,867) and IBM MarketScan Research Databases (N=106,395); and applied two conceptually different, well-established causal inference methods to estimate the effect of hundreds of drugs on delaying dementia onset as a proxy for slowing PD progression. Using this approach, we identified two drugs that manifested significant beneficial effects on PD progression in both datasets: rasagiline, narrowly indicated for PD motor symptoms; and zolpidem, a psycholeptic. Each confers its effects through distinct mechanisms, which we explored via a comparison of estimated effects within the drug classification ontology. We conclude that analysis of observational healthcare data, emulating otherwise costly, large, and lengthy clinical trials, can highlight promising repurposing candidates, to be validated in prospective registration trials, for common, late-onset progressive diseases for which disease-modifying therapeutic solutions are scarce.

The rate of tumor growth, g, as a biomarker for overall survival (OS) in prostate cancer (PC) in clinical trials as well as in real-world data from the Veterans Administration Medical Centers (VAMCs).

2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 5074-5074
Author(s):  
Harshraj Leuva ◽  
Mengxi Zhou ◽  
Julia Wilkerson ◽  
Keith Sigel ◽  
Ta-Chueh Hsu ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Clinical Trial ◽  
Overall Survival ◽  
Clinical Trials ◽  
Tumor Growth ◽  
Real World ◽  
Clinical Trial Data ◽  
Trial Data ◽  
Real World Data ◽  
World Data

5074 Background: Novel assessments of efficacy are needed to improve determination of treatment outcomes in clinical trials and in real-world settings. Methods: Cancer treatments usually lead to concurrent regression and growth of the drug-sensitive and drug-resistant fractions of a tumor, respectively. We have exploited novel methods of analysis that assess these two simultaneous processes and have estimated rates of tumor growth ( g) and regression ( d) in over 30,000 patients (pts) with diverse tumors. Results: In prostate cancer (PC) we have analyzed both clinical trial and real-world data from Veterans. Using clinical trial data from 6819 pts enrolled in 15 treatment arms we have established separately and by combining all the data that g correlates highly (p<0.0001) with overall survival (OS) – slower g associated with better OS. In PC, abiraterone (ABI) and docetaxel (DOC) are superior to placebo, prednisone and mitoxantrone. ABI (median g =0.0017) is superior to DOC ( g=0.0021) in first line (p=0.0013); and ABI in 2nd line ( g=0.0034) is inferior to ABI in 1st line ( g=0.0017; p<0.0001). Finally, using combined clinical trial data as a benchmark we could assess the efficacy of novel therapies in as few as 30-40 patients. Amongst 7457 Veterans, the median g on a taxane ( g=0.0022) was similar to that from clinical trials ( g=0.0012). Although only 258 Veterans received cabazitaxel (CAB), g values for CAB ( g=0.0018) and DOC ( g=0.0023) were indistinguishable (p=0.3) consistent with their identical mechanism of action. Finally, outcomes with DOC in African American (AA) ( g=0.00212) and Caucasian ( g=0.00205) Veterans were indistinguishable (p=0.9) and comparable across all VAMCs. Conclusions: The rate of tumor growth, g, is an excellent biomarker for OS both in clinical trials and in real-world settings. g allows comparisons between trials and for large trial data sets to be used as benchmarks of efficacy. Real-world outcomes in the VAMCs are similar to those in clinical trials. In the egalitarian VAMCs DOC efficacy in PC is comparable in AA and Caucasian Veterans -- indicating inferior outcomes reported in AAs are likely due to differential health care access, not differences in biology.

scholarly journals Application of Real-World Data to External Control Groups in Oncology Clinical Trial Drug Development

2022 ◽  
Vol 11 ◽  
Author(s):  
Timothy A. Yap ◽  
Ira Jacobs ◽  
Elodie Baumfeld Andre ◽  
Lauren J. Lee ◽  
Darrin Beaupre ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Drug Development ◽  
Real World ◽  
External Control ◽  
Control Group ◽  
Precision Oncology ◽  
Efficacy And Safety ◽  
Control Groups ◽  
Real World Data ◽  
World Data

Randomized controlled trials (RCTs) that assess overall survival are considered the “gold standard” when evaluating the efficacy and safety of a new oncology intervention. However, single-arm trials that use surrogate endpoints (e.g., objective response rate or duration of response) to evaluate clinical benefit have become the basis for accelerated or breakthrough regulatory approval of precision oncology drugs for cases where the target and research populations are relatively small. Interpretation of efficacy in single-arm trials can be challenging because such studies lack a standard-of-care comparator arm. Although an external control group can be based on data from other clinical trials, using an external control group based on data collected outside of a trial may not only offer an alternative to both RCTs and uncontrolled single-arm trials, but it may also help improve decision-making by study sponsors or regulatory authorities. Hence, leveraging real-world data (RWD) to construct external control arms in clinical trials that investigate the efficacy and safety of drug interventions in oncology has become a topic of interest. Herein, we review the benefits and challenges associated with the use of RWD to construct external control groups, and the relevance of RWD to early oncology drug development.

scholarly journals Straightforward Transition to Bay 81-8973 Prophylaxis in Patients with Hemophilia A: Prospective Real-World Data from the Taurus Non-Interventional Study Show That Number of Infusions per Week Is Maintained or Reduced

Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 5045-5045
Author(s):  
Michael Wang ◽  
Beng Fuh ◽  
Philip Maes ◽  
Maria Eva Mingot-Castellano ◽  
Rubén Berrueco ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Real World ◽  
Hemophilia A ◽  
Weekly Dose ◽  
Real World Data ◽  
World Data ◽  
Real World Setting ◽  
Patient Reported ◽  
Dosing Frequency

Abstract BACKGROUND: BAY 81-8973 (Kovaltry®, Bayer) is an unmodified full-length recombinant FVIII indicated for prophylaxis and treatment of bleeds in patients with hemophilia A; BAY 81-8973 was launched in 2016 and has since accumulated 6765 patient-years of exposure. The TAURUS study (NCT02830477) was established to investigate BAY 81-8973 prophylaxis dosing regimens chosen in clinical practice and confirm the established safety and efficacy results from the LEOPOLD clinical trials in a real world setting. OBJECTIVES: To analyse the proportion of patients on specific BAY 81-8973 prophylaxis regimens, bleeds, and patient-reported outcomes at baseline and most recent follow-up. METHODS: TAURUS is an international, open label, prospective, non-interventional, single arm study with a target recruitment of 350 previously treated patients with hemophilia A of all ages with moderate or severe hemophilia A (≤ 5% FVIII:C) with ≥ 50 exposure days to any FVIII product who have been switched to prophylaxis with BAY 81-8973. At baseline, physicians document clinical information including age, BMI, severity of hemophilia, number of target joints, prior treatment regimen, bleed history, inhibitor history, and reason for choosing a specific prophylaxis regimen. Patients/caregivers reported bleeds in ongoing patient diaries, and completed questionnaires on treatment satisfaction (HEMOSAT) and adherence (VERITAS-PRO) at baseline and follow-up. A scheduled interim analysis (30% of patients recruited) was conducted with data collected up to 2 July 2018. RESULTS: At the cut-off, 160 enrolled patients were included in the baseline analysis set, of whom 89 had ≥ 6 months of follow-up data available (median observation period 201 days), 33% of whom had completed one year of the study. Median (range) patient age was 22 (2‒69) years, time since diagnosis was 15 (0.5‒64) years, and most patients (76/89, 85%) had baseline FVIII level of <1%. Treatment assignments are shown in the table. All patients had received pre-study prophylaxis, for a median of 15 years, with 66% of patients using rFVIII-FS as their most recent FVIII treatment prior to BAY 81-8973. Most (91%) had been treated with BAY 81-8973 for <3 months prior to study entry. Pre-study, 72% of patients were treated ≥3 times per week (xW). At baseline, most patients (59%) were assigned treatment ≥3xW (every day, 1%; every other day, 16%; 3xW, 41%). The majority remained on their previous regimen (78% on ≤2xW and 97% on ≥3xW); any changes were mainly a reduction in frequency on BAY 81-8973 vs previous treatment (22%), with only 2% increasing frequency on BAY 81-8973. At last follow up, most patients remained on the same regimen: 60% on ≥3xW (≥ every other day, 17%; 3xW, 42%). Most patients (92%) did not alter their dosing frequency. Of the 8% who changed dosing frequency, the majority (6 patients) changed from ≥3xW to ≤2xW; 1 patient changed from ≤2xW to ≥3xW. The median prescribed weekly dose was 52 IU/kg (64 IU/kg for ≥3xW and 43 IU/kg for ≤2xW) on study, slightly lower than those with previous product: 56 IU/Kg overall, 64 IU/kg for ≥3xW and 50 IU/kg for ≤2xW. Median (Q1; Q3) patient diary-reported annualized joint bleed rates were 1.5 (0.0; 5.3), 1.2 (0.0; 5.3) and 1.4 (0.0; 6.1); for ≤2xW, ≥3xW, and all patients, respectively. HEMO-SAT and VERITAS-PRO data will be presented in the poster. No recruited patients developed inhibitors with BAY 81-8973. CONCLUSIONS: These real-world data from 89 patients show that the range of dosing options available for BAY 81-8973 allowed the majority of patients to become established quickly on this treatment upon switching. In the few instances where patients changed dosing frequency either upon switching to BAY 81-8973 or once established on treatment, most moved to less frequent treatment. Joint bleeding rates confirm and extend findings from the clinical trials and speak to effective bleeding prophylaxis with BAY 81-8973 in a real-world setting. Therefore, BAY 81-8973 treatment may be successfully individualized according to patient need and disease characteristics. Disclosures Wang: Terumo BCT: Other: CPC Clinical Research; CSL Behring: Consultancy; Bayer, Bioverative, Novo Nordisk, Octapharma, Shire, Genentech, Biomarain, Pfizer, CSL Behring, HEMA Biologics, Daiichi Sankyo: Research Funding; Bayer: Consultancy; Bayer, Novo Nordisk, Octapharma, Genentech, HEMA Biologics, Shire, CSL Behring: Honoraria; Novo Nordisk: Consultancy. Maes:Bayer: Honoraria. Rauchensteiner:Bayer: Employment.

scholarly journals Exploring the Feasibility of Using Real-World Data from a Large Clinical Data Research Network to Simulate Clinical Trials of Alzheimer’s Disease

2020 ◽  
Author(s):  
Zhaoyi Chen ◽  
Hansi Zhang ◽  
Yi Guo ◽  
Thomas J George ◽  
Mattia Prosperi ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Clinical Trials ◽  
Clinical Data ◽  
Real World ◽  
Large Scale ◽  
Research Network ◽  
Real World Data ◽  
World Data ◽  
Trial Simulation

AbstractClinical trials are essential but often have high financial costs and long execution time. Trial simulation using real world data (RWD) could potentially provide insights on a treatment’s efficacy and safety before running a large-scale trial. In this work, we explored the feasibility of using RWD from a large clinical data research network to simulate a randomized controlled trial of Alzheimer’s disease considering two different scenarios: an one-arm simulation of the standard-of-care control arm; and a two-arm simulation comparing treatment safety between the intervention and control arms with proper patient matching algorithms. We followed original trial’s design and addressed some key questions, including how to translate trial criteria to database queries and establish measures of safety (i.e., serious adverse events) from RWD. Our simulation generated results comparable to the original trial, but also exposed gaps in both trial simulation methodology and the generalizability issue of clinical trials.

scholarly journals Validating Direct Oral Anticoagulants (DOAC) for Use in Children By the Throm-PED Doac Registry of the International Pediatric Thrombosis Network

Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 1063-1063
Author(s):  
Susanne Holzhauer ◽  
Christoph Male ◽  
Paul Monagle ◽  
Mohammadreza Bordbar ◽  
Heleen van Ommen ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Renal Disease ◽  
Real World ◽  
Randomized Clinical Trials ◽  
Chronic Medical Conditions ◽  
Medical Conditions ◽  
Efficacy And Safety ◽  
Real World Data ◽  
World Data ◽  
International Pediatric

Abstract Background: A growing number of randomized clinical trials (RCTs) provide promising data on pharmacokinetics/ pharmacodynamics, efficacy and safety of DOAC in children and the first DOACs have recently been approved for treatment of thromboembolism in children. Based on the risk benefit profiles published so far, we expect DOACs to be widely used for treatment and prophylaxis of thrombosis in children. The strict inclusion criteria for participation in the RCTs limit their generalizability, particularly to those with more serious acute and chronic medical conditions that account for a significant proportion of pediatric VTE patients in clinical practice. Real world data complements evidence from randomized clinical trials, and is urgently needed to improve patient care. Aim: To obtain efficacy and safety data of DOACs in a large and heterogeneous pediatric patient collectives. To expand the knowledge on treatment strategies and outcomes across different risk profiles and comorbidities including cancer and renal disease. Study Design: An international, multicentre, prospective observational cohort study imbedded in the Throm-PED Registry of the International Pediatric Thrombosis Network (IPTN). Parameters included at baseline are age, gender, height, weight, thrombosis type, thrombosis location, risk factors, underlying medical conditions and comedication. Primary outcomes include 1) thrombus progression or recurrence and 2) bleeding (major, clinically relevant non major including menorrhagia) and 3) mortality. Outcomes are assessed every 3 months for a total of 12 months. Additional variables include self-reported adherence, comedication, chemotherapy, DOAC drug levels, measures of renal function and dose adjustments on children with chronic medical conditions including renal disease and cancer. Study population : Patients from 0-21 years with thromboembolic disease treated with DOACs who are enrolled in the IPTN Throm-PED Registry. Results: As of June 30, 2021 82 patients from 10 centers have been enrolled. The majority of patients were at least 12 years old (Figure 1). 66% suffered from venous thrombosis. With about 30% each, pulmonary embolism or thrombosis of the lower extremities were reported most commonly. In this cohort the majority of patients received Rivaroxaban (80%), followed by Apixaban and Edoxaban. Risk factors were manifold, including patients with cancer (13%) and renal disease (4%). Of the 33 patients with follow-up reported at 3 months, bleeding was reported in 3 (9%) of patients during treatment with a DOAC, and thrombosis progression was reported in 2 (6%) (Table 1). Summary: This initial real world data, as expected, demonstrates reduced efficacy and more bleeding than noted in published trials, however numbers are small. Further real world data collection is essential to identify specific patient groups at risk of worse outcome with DOACs and to understand drug interactions and dose adjustments. Data on younger age groups are required. IPTN registry is an important framework to collect real world data that can then be explored in clinical trials. Figure 1 Figure 1. Disclosures Raffini: CSL Behring: Consultancy; Genentech: Consultancy; HEMA Biologics: Consultancy; Bayer: Consultancy; XaTek: Consultancy.

CDK4/6 inhibitors and hormone therapy in hormone receptor-positive advanced breast cancer: Real-world data and intrinsic subtypes defined by PAM50.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e13035-e13035
Author(s):  
Tamara Diaz Redondo ◽  
Rocío Lavado-Valenzuela ◽  
Maria Emilia Dominguez-Recio ◽  
Sofía Ruíz ◽  
Encarnación González Flores ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Clinical Trials ◽  
Advanced Breast Cancer ◽  
Hormone Therapy ◽  
Real World ◽  
Hormone Receptor ◽  
Advanced Breast ◽  
Real World Data ◽  
World Data ◽  
Hormone Receptor Positive

e13035 Background: CDK 4/6 inhibitors plus hormone therapy(HT) has been approved by FDA and EMA for the treatment of hormone receptor positive HER2 negative advanced breast cancer (HR+/HER2-BC) with improvement in PFS consistently demonstrated in several clinical trials. Benefit in OS has also been demonstrated in Monaleesa3 and Monarch2 clinical trials. To date we don`t have real-world data and no single biomarker has been validated to identify subgroups that would benefit most from this new drugs. Methods: This is a multicenter, real life, observational study. From January 2015 to December 2019 we recruited 98 patients with immunohistochemical(IHC) HR+/HER2-BC treated with CDK4-6 inhibitor plus HT. All patients were classified into intrinsic molecular subtypes based on PAM50 signature done centrally in diagnostic/metastatic biopsies. Results: The clinical and treatment characteristic are in table. In IHC studies all population were classified as luminalA (40%) and LuminalB (60%) but we found HER2 enriched patients (6%) defined by PAM50. The median PFS for all population was 14 months and median PFS for Luminal A subtype was 12 months and 15 months for Luminal B with no statistically significant differences between them. Conclusions: Based on the results obtained, the intrinsic molecular subtype defined by PAM50 does not appear to be associated with differences in PFS in our study group. However, a study with a larger number of patients would be necessary. Inhibitors of CDK4/6, have established a central role in the management of HR+/HER2-BC. There is a clear benefit in PFS and OS but we still don’t know which patients will benefit from this therapy and who will not while the side effects such chronic neutropenia, QTC prolongation and diarrhea could have a negative impact on their quality of life. Its mandatory to explore a good biomarker to direct therapy. [Table: see text]

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