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11,291 real negative results, null findings, and replication failures in Medicine · Negative / Null Result Report. Search the index →

WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record compiled from open scholarly databases; the abstract is shown in full only where the paper is openly licensed, otherwise a short excerpt under fair use. Classifications are automated and approximate.

Negative / Null Result ReportOpen accessMedicine

Incidence and prognostic significance of karyotypic subgroups in older patients with acute myeloid leukemia: the Swedish population-based experience

Vladimir Lazarević, A-S Hörstedt, Bertil Johansson et al. · 2014 · Blood Cancer Journal

The Swedish population-based acute myeloid leukemia registry contains data from 3251 patients (excluding acute promyelocytic leukemia) diagnosed between 1997 and 2006. Informative cytogenetic data from 1893 patients were retrospectively…

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Negative / Null Result ReportOpen accessMedicine

Health systems performance in sub-Saharan Africa: governance, outcome and equity

Anna Elisabet Olafsdottir, Daniel D. Reidpath, Subhash Pokhrel et al. · 2011 · BMC Public Health

BACKGROUND: The literature on health systems focuses largely on the performance of healthcare systems operationalised around indicators such as hospital beds, maternity care and immunisation coverage. A broader definition of health systems however, needs to include the wider determinants of health including, possibly, governance and its relationship to health and health equity. The aim of this study was to examine the relationship between health systems outcomes and equity, and governance as a part of a process to extend the range of indicators used to assess health systems performance. METHOD

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Negative / Null Result ReportOpen accessMedicine

A randomised controlled trial (MindChamp) of a mindfulness‐based intervention for children with ADHD and their parents

Nienke M. Siebelink, Susan M. Bögels, Anne Speckens et al. · 2021 · Journal of Child Psychology and Psychiatry

BACKGROUND: Family mindfulness-based intervention (MBI) for child attention-deficit/hyperactivity disorder (ADHD) targets child self-control, parenting and parental mental health, but its effectiveness is still unclear. METHODS: MindChamp…

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Negative / Null Result ReportOpen accessMedicine

Nerve growth factor inhibition with tanezumab influences weight-bearing and subsequent cartilage damage in the rat medial meniscal tear model

Timothy P. LaBranche, Alison M. Bendele, Brian C Omura et al. · 2016 · Annals of the Rheumatic Diseases

OBJECTIVE: To investigate whether the effects of nerve growth factor (NGF) inhibition with tanezumab on rats with medial meniscal tear (MMT) effectively model rapidly progressive osteoarthritis (RPOA) observed in clinical trials. METHODS:…

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Negative / Null Result ReportOpen accessMedicine

MET expression and copy number heterogeneity in nonsquamous non-small cell lung cancer (nsNSCLC)

David Casadevall, Javier Gimeno, Sergi Clavé et al. · 2015 · Oncotarget

// David Casadevall 1, 6, * , Javier Gimeno 2, * , Sergi Clavé 3, 4, * , Álvaro Taus 1 , Lara Pijuan 2 , Miriam Arumí 1 , Marta Lorenzo 4 , Silvia Menéndez 4 , Israel Cañadas 4 , Joan Albanell 1, 4, 5 , Sergio Serrano 2 , Blanca Espinet 3, 4 , Marta Salido 3, 4 , Edurne Arriola 1, 4, # 1 Servei d’Oncologia Mèdica, Hospital del Mar, Barcelona, Spain 2 Servei de Patologia, Hospital del Mar, Barcelona, Spain 3 Laboratori de Citogenètica Molecular, Servei de Patologia, Hospital del Mar, Barcelona, Spain 4 Cancer Research Program, IMIM (Hospita

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Negative / Null Result ReportOpen accessMedicine

A Phase 2 Trial of the Effect of Antiandrogen Therapy on COVID-19 Outcome: No Evidence of Benefit, Supported by Epidemiology and In Vitro Data

Karin Welén, Ebba Rosendal, Magnus Gisslén et al. · 2021 · European Urology

BACKGROUND: Men are more severely affected by COVID-19. Testosterone may influence SARS-CoV-2 infection and the immune response. OBJECTIVE: To clinically, epidemiologically, and experimentally evaluate the effect of antiandrogens on…

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Negative / Null Result ReportOpen accessMedicine

Detection of circulating tumor cells in colorectal cancer patients using the GILUPI CellCollector: results from a prospective, single‐center study

Levent Dizdar, Georg Fluegen, Guus van Dalum et al. · 2019 · Molecular Oncology

The GILUPI CellCollector (CC) is a novel in vivo circulating tumor cell (CTC) detection device reported to overcome the limitations of small blood sample volumes. The aim of this prospective, blinded study was to evaluate the clinical application of the CC and to compare its performance to the CellSearch (CS) system in M0 and M1 colorectal cancer (CRC) patients. A total of 80 patients (31 M0, 49 M1) with CRC were enrolled. CTCs were simultaneously measured in the peripheral blood using CS and the CC, and the results of both assays were correlated to clinicopathological variables and overall su

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Negative / Null Result ReportOpen accessMedicine

Pertuzumab, trastuzumab, and chemotherapy in HER2-positive gastric/gastroesophageal junction cancer: end-of-study analysis of the JACOB phase III randomized clinical trial

Josep Tabernero, Paulo M. Hoff, Lin Shen et al. · 2022 · Gastric Cancer

BACKGROUND: Dual-targeted anti-HER2 therapy significantly improves outcomes in HER2-positive breast cancer and could be beneficial in other HER2-positive cancers. JACOB's end-of study analyses aimed to evaluate the long-term efficacy and safety of pertuzumab plus trastuzumab and chemotherapy for previously untreated HER2-positive metastatic gastric or gastroesophageal junction cancer. METHODS: Eligible patients were randomized 1:1 to pertuzumab/placebo plus trastuzumab and chemotherapy every 3 weeks. PRIMARY ENDPOINT: overall survival (OS). Secondary endpoints included progression-free surviva

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Negative / Null Result ReportOpen accessMedicine

Sorafenib or placebo in patients with newly diagnosed acute myeloid leukaemia: long-term follow-up of the randomized controlled SORAML trial

Christoph Röllig, Hubert Serve, Richard Noppeney et al. · 2021 · Leukemia

Early results of the randomized placebo-controlled SORAML trial showed that, in patients with newly diagnosed acute myeloid leukaemia (AML), sorafenib led to a significant improvement in event-free (EFS) and relapse-free survival (RFS). In order to describe second-line treatments and their implications on overall survival (OS), we performed a study after a median follow-up time of 78 months. Newly diagnosed fit AML patients aged ≤60 years received sorafenib (n = 134) or placebo (n = 133) in addition to standard chemotherapy and as maintenance treatment. The 5-year EFS was 41 versus 27% (HR 0.6

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Negative / Null Result ReportOpen accessMedicine

Effect of Radiofrequency Catheter Ablation for Atrial Fibrillation on Morbidity and Mortality

Chia‐Hsuin Chang, Jou‐Wei Lin, Fu‐Chun Chiu et al. · 2014 · Circulation Arrhythmia and Electrophysiology

BACKGROUND: This study examined the effect of radiofrequency catheter ablation (RFA) on reducing morbidity and mortality among patients with atrial fibrillation (AF). METHODS AND RESULTS: A retrospective cohort of patients with AF without…

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Negative / Null Result ReportOpen accessMedicine

Myocardial viability testing: all STICHed up, or about to be REVIVED?

M. J. Ryan, Holly Morgan, Amedeo Chiribiri et al. · 2021 · European Heart Journal

Patients with ischaemic left ventricular dysfunction frequently undergo myocardial viability testing. The historical model presumes that those who have extensive areas of dysfunctional-yet-viable myocardium derive particular benefit from…

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Negative / Null Result ReportOpen accessMedicine

Abdominal desmoplastic small round cell tumor without extraperitoneal metastases: Is there a benefit for HIPEC after macroscopically complete cytoreductive surgery?

Charles Honoré, V. Atallah, Olivier Mir et al. · 2017 · PLoS ONE

BACKGROUND: Desmoplastic Small Round Cell Tumor (DSRCT) is a rare disease affecting predominantly children and young adults and for which the benefit of hyperthermic intraperitoneal chemotherapy (HIPEC) after complete cytoreductive surgery (CCRS) remains unknown. METHODS: To identify patients with DSRCT without extraperitoneal metastases (EPM) who underwent CCRS between 1991 and 2015, a retrospective nation-wide survey was conducted by crossing the prospective and retrospective databases of the French Network for Rare Peritoneal Malignancies, French Reference Network in Sarcoma Pathology, Fren

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Negative / Null Result ReportOpen accessMedicine

A phase 2 trial of trifluridine/tipiracil plus nivolumab in patients with heavily pretreated microsatellite‐stable metastatic colorectal cancer

Manish R. Patel, Gerald S. Falchook, K Hamada et al. · 2021 · Cancer Medicine

Abstract Background Microsatellite‐stable (MSS) colorectal cancer (CRC) tends to be poorly immunogenic, with limited treatment options. In MSS CRC xenograft models, trifluridine/tipiracil (FTD/TPI) plus programed death 1 inhibitors resulted in synergistic antitumor activity and increased tumor immunogenicity. This phase 2 study evaluated FTD/TPI plus nivolumab in patients with MSS metastatic CRC. Methods This single‐arm, safety lead‐in study used a Simon's two‐stage design (enrolling 6 patients in the safety lead‐in, proceeding to stage 2 if ≥2 of the first 15 patients achieved a partial or co

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Negative / Null Result ReportOpen accessMedicine

The necroptosis cell death pathway drives neurodegeneration in Alzheimer’s disease

Sriram Balusu, Bart De Strooper · 2024 · Acta Neuropathologica

Although apoptosis, pyroptosis, and ferroptosis have been implicated in AD, none fully explains the extensive neuronal loss observed in AD brains. Recent evidence shows that necroptosis is abundant in AD, that necroptosis is closely linked to the appearance of Tau pathology, and that necroptosis markers accumulate in granulovacuolar neurodegeneration vesicles (GVD). We review here the neuron-specific activation of the granulovacuolar mediated neuronal-necroptosis pathway, the potential AD-relevant triggers upstream of this pathway, and the interaction of the necrosome with the endo-lysosomal p

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Negative / Null Result ReportOpen accessMedicine

Estimation of maternal and child mortality one year after user-fee elimination: an impact evaluation and modelling study in Burkina Faso

Mira Johri, Valéry Ridde, Rolf Heinmüller et al. · 2014 · Bulletin of the World Health Organization

OBJECTIVE: To estimate the impact on maternal and child mortality after eliminating user fees for pregnant women and for children less than five years of age in Burkina Faso. METHODS: Two health districts in the Sahel region eliminated user fees for facility deliveries and curative consultations for children in September 2008. To compare health-care coverage before and after this change, we used interrupted time series, propensity scores and three independent data sources. Coverage changes were assessed for four variables: women giving birth at a health facility, and children aged 1 to 59 mont

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Negative / Null Result ReportOpen accessMedicine

Antibody‐based methods for the measurement of α‐synuclein concentration in human cerebrospinal fluid – method comparison and round robin study

Brit Mollenhauer, Frederick DuBois Bowman, Daniel Drake et al. · 2018 · Journal of Neurochemistry

Abstract α‐Synuclein is the major component of Lewy bodies and a candidate biomarker for neurodegenerative diseases in which Lewy bodies are common, including Parkinson's disease and dementia with Lewy bodies. A large body of literature suggests that these disorders are characterized by reduced concentrations of α‐synuclein in cerebrospinal fluid (CSF), with overlapping concentrations compared to healthy controls and variability across studies. Several reasons can account for this variability, including technical ones, such as inter‐assay and inter‐laboratory variation (reproducibility). We co

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Negative / Null Result ReportOpen accessMedicine

Cytomegalovirus: A Troll in the ICU? Overview of the Literature and Perspectives for the Future

Jolien Schildermans, Greet De Vlieger · 2020 · Frontiers in Medicine

Cytomegalovirus (CMV) is one of the most pathogenic viruses in human. After a primary infection, CMV resides in the host for life as a latent infection. When immunity is reduced, CMV can escape the suppressive effects of the immune system and lead to viremia and antigenemia. This reactivation, first seen in transplant patients, has also been documented in non-immunocompromised CMV-seropositive critically ill patients and is associated with higher morbidity and mortality. In the latter, it is not clear whether CMV reactivation is an innocent bystander or the cause of this observed worse outcome

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Negative / Null Result ReportOpen accessMedicine

GDF11/BMP11 activates both smad1/5/8 and smad2/3 signals but shows no significant effect on proliferation and migration of human umbilical vein endothelial cells

Yonghui Zhang, Feng Cheng, Xueting Du et al. · 2016 · Oncotarget

// Yong-Hui Zhang 1 , Feng Cheng 1 , Xue-Ting Du 1 , Jin-Lai Gao 1 , Xiao-Lin Xiao 1 , Na Li 1 , Shan-Liang Li 1 and De-Li Dong 1 1 Department of Pharmacology (The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, P.R.China Correspondence to: De-Li Dong, email: // Keywords : bone morphogenetic protein 11, growth differentiation factor 11, smad2/3, smad1/5/8,

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Negative / Null Result ReportOpen accessMedicine

Interplay of cytokines in the pathophysiology of atopic dermatitis: insights from Murin models and human

Y Yamamura, Chisa Nakashima, Atsushi Otsuka · 2024 · Frontiers in Medicine

The pathogenesis of atopic dermatitis (AD) is understood to be crucially influenced by three main factors: dysregulation of the immune response, barrier dysfunction, and pruritus. In the lesional skin of AD, various innate immune cells, including Th2 cells, type 2 innate lymphoid cells (ILC2s), and basophils, produce Th2 cytokines [interleukin (IL)-4, IL-5, IL-13, IL-31]. Alarmins such as TSLP, IL-25, and IL-33 are also produced by epidermal keratinocytes, amplifying type 2 inflammation. In the chronic phase, not only Th2 cells but also Th22 and Th17 cells increase in number, leading to suppre

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Negative / Null Result ReportOpen accessMedicine

Value and application of trimodality therapy or definitive concurrent chemoradiotherapy in thoracic esophageal squamous cell carcinoma

Wei‐Cheng Lin, Yi‐Fang Ding, Han‐Lin Hsu et al. · 2017 · Cancer

BACKGROUND: Few large, prospective, randomized studies have investigated the value and optimal application of neoadjuvant chemoradiotherapy followed by surgery (trimodality therapy) or definitive concurrent chemoradiotherapy (CCRT) for patients with thoracic esophageal squamous cell carcinoma (TESCC). METHODS: The authors analyzed data from patients with TESCC in the Taiwan Cancer Registry database. To compare their outcomes, patients with TESCC were enrolled and categorized into the following groups according to treatment modality: group 1, those who underwent surgery alone; group 2, those wh

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Negative / Null Result ReportOpen accessMedicine

Inflammation and response to nutrition interventions

Carla Wunderle, Franziska Stumpf, Philipp Schüetz · 2024 · Journal of Parenteral and Enteral Nutrition

The complex interplay between nutrition and inflammation has become a major focus of research in recent years across different clinical settings and patient populations. Inflammation has been identified as a key driver for disease-related…

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Negative / Null Result ReportOpen accessMedicine

Effect of Disulfiram and Copper Plus Chemotherapy vs Chemotherapy Alone on Survival in Patients With Recurrent Glioblastoma

Katja Werlenius, Sara Kinhult, Tora S. Solheim et al. · 2023 · JAMA Network Open

Importance: Disulfiram has demonstrated broad antitumoral effect in several preclinical studies. One of the proposed indications is for the treatment of glioblastoma. Objective: To evaluate the efficacy and safety of disulfiram and copper as add-on to alkylating chemotherapy in patients with recurrent glioblastoma. Design, Setting, and Participants: This was a multicenter, open-label, randomized phase II/III clinical trial with parallel group design. Patients were recruited at 7 study sites in Sweden and 2 sites in Norway between January 2017 and November 2020. Eligible patients were 18 years

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Negative / Null Result ReportOpen accessMedicine

Dynamics of Japanese Encephalitis Virus Transmission among Pigs in Northwest Bangladesh and the Potential Impact of Pig Vaccination

Salah Uddin Khan, Henrik Salje, Abu Sayeed Md. Abdul Hannan et al. · 2014 · PLoS neglected tropical diseases

BACKGROUND: Japanese encephalitis (JE) virus infection can cause severe disease in humans, resulting in death or permanent neurologic deficits among survivors. Studies indicate that the incidence of JE is high in northwestern Bangladesh. Pigs are amplifying hosts for JE virus (JEV) and a potentially important source of virus in the environment. The objectives of this study were to describe the transmission dynamics of JEV among pigs in northwestern Bangladesh and estimate the potential impact of vaccination to reduce incidence among pigs. METHODOLOGY/PRINCIPAL FINDINGS: We conducted a comprehe

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Negative / Null Result ReportOpen accessMedicine

Combined CTLA-4 and PD-L1 blockade in patients with chemotherapy-naïve metastatic castration-resistant prostate cancer is associated with increased myeloid and neutrophil immune subsets in the bone microenvironment

Sumit K. Subudhi, Bilal A. Siddiqui, Ana M. Aparicio et al. · 2021 · Journal for ImmunoTherapy of Cancer

BACKGROUND: Immune checkpoint therapy (ICT) has low response rates in patients with metastatic castration-resistant prostate cancer (mCRPC), in part due to few T cells in the tumor microenvironment (TME). Anti-cytotoxic T…

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Negative / Null Result ReportOpen accessMedicine

Axitinib plus avelumab in the treatment of recurrent glioblastoma: a stratified, open-label, single-center phase 2 clinical trial (GliAvAx)

Gil Awada, Laïla Ben Salama, Jennifer Cremer et al. · 2020 · Journal for ImmunoTherapy of Cancer

BACKGROUND: No treatment demonstrated to improve survival in patients with recurrent glioblastoma (rGB) in a randomized trial. Combining axitinib with the programmed cell death ligand 1 blocking monoclonal antibody avelumab may result in…

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Negative / Null Result ReportOpen accessMedicine

Time-Restricted Eating in Adults With Metabolic Syndrome

Emily N. C. Manoogian, Michael J. Wilkinson, Monica A. O'Neal et al. · 2024 · Annals of Internal Medicine

BACKGROUND: Time-restricted eating (TRE), limiting daily dietary intake to a consistent 8 to 10 hours without mandating calorie reduction, may provide cardiometabolic benefits. OBJECTIVE: To determine the effects of TRE as a lifestyle…

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Negative / Null Result ReportOpen accessMedicine

Significant Association Between Low Baseline Neutrophil-to-Lymphocyte Ratio and Improved Progression-free Survival of Patients With Locally Advanced or Metastatic Breast Cancer Treated With Eribulin But Not With Nab-Paclitaxel

Yoshimasa Miyagawa, Kazuhiro Araki, Ayako Bun et al. · 2018 · Clinical Breast Cancer

INTRODUCTION: Although eribulin and nab-paclitaxel are chemotherapy agents widely used for locally advanced or metastatic breast cancer (MBC), their predictive factors remain unknown. Because the absolute neutrophil-to-lymphocyte ratio…

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