e-ISSN: Pending

Browse the failure-mode index

12,367 real negative results, null findings, and replication failures in Medicine. 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

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

View details →
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…

View details →
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…

View details →
Failed Experiment ReportOpen accessMedicine

In Vitro Neutralization Is Not Predictive of Prophylactic Efficacy of Broadly Neutralizing Monoclonal Antibodies CR6261 and CR9114 against Lethal H2 Influenza Virus Challenge in Mice

Troy C. Sutton, Elaine W. Lamirande, Kevin W. Bock et al. · 2017 · Journal of Virology

ABSTRACT Influenza viruses of the H1N1, H2N2, and H3N2 subtypes have caused previous pandemics. H2 influenza viruses represent a pandemic threat due to continued circulation in wild birds and limited immunity in the human population. In…

View details →
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…

View details →
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

View details →
Negative / Null Result ReportOpen accessMedicine

Free Fatty Acids Signature in Human Intestinal Disorders: Significant Association between Butyric Acid and Celiac Disease

Simone Baldi, Marta Menicatti, Giulia Nannini et al. · 2021 · Nutrients

Altered circulating levels of free fatty acids (FFAs), namely short chain fatty acids (SCFAs), medium chain fatty acids (MCFAs), and long chain fatty acids (LCFAs), are associated with metabolic, gastrointestinal, and malignant diseases. Hence, we compared the serum FFA profile of patients with celiac disease (CD), adenomatous polyposis (AP), and colorectal cancer (CRC) to healthy controls (HC). We enrolled 44 patients (19 CRC, 9 AP, 16 CD) and 16 HC. We performed a quantitative FFA evaluation with the gas chromatography-mass spectrometry method (GC-MS), and we performed Dirichlet-multinomial

View details →
Negative / Null Result ReportOpen accessMedicine

Occupational exposure and amyotrophic lateral sclerosis in a prospective cohort

Tom Koeman, Pauline Slottje, Leo J. Schouten et al. · 2017 · Occupational and Environmental Medicine

OBJECTIVE: To prospectively study suspected occupational risk factors for amyotrophic lateral sclerosis (ALS). METHODS: For this case-cohort analysis within the prospective Netherlands Cohort Study, 58 279 men and 62 573 women aged 55-69…

View details →
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…

View details →
Negative / Null Result ReportMedicine

Outcomes of Lisfranc Injuries in the National Football League

Kevin J. McHale, Joshua C. Rozell, Andrew H. Milby et al. · 2016 · The American Journal of Sports Medicine

BACKGROUND: Tarsometatarsal (Lisfranc) joint injuries commonly occur in National Football League (NFL) competition; however, the career effect of these injuries is unknown. PURPOSE: To define the time to return to competition for NFL…

View details →
Negative / Null Result ReportOpen accessMedicine

Lymph Node Dissection in Curative Gastrectomy for Advanced Gastric Cancer

Shigeyuki Tamura, Atsushi Takeno, Hirofumi Miki · 2011 · International Journal of Surgical Oncology

Gastric cancer is one of the most common causes of cancer-related death worldwide. Surgical resection with lymph node dissection is the only potentially curative therapy for gastric cancer. However, the appropriate extent of lymph node dissection accompanied by gastrectomy for cancer remains controversial. In East Asian countries, especially in Japan and Korea, D2 lymph node dissection has been regularly performed as a standard procedure. In Western countries, surgeons perform gastrectomy with D1 dissection only because D2 is associated with high mortality and morbidity compared to those assoc

View details →
Negative / Null Result ReportOpen accessMedicine

Time to Reperfusion in ST-Segment Elevation Myocardial Infarction Patients With vs. Without Pre-Hospital Mobile Telemedicine 12-Lead Electrocardiogram Transmission

Shoji Kawakami, Yoshio Tahara, Teruo Noguchi et al. · 2016 · Circulation Journal

BACKGROUND: Prehospital ECG improves survival following ST-segment elevation myocardial infarction (STEMI). Although a new International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment…

View details →
Negative / Null Result ReportMedicine

Machine learning methods are comparable to logistic regression techniques in predicting severe walking limitation following total knee arthroplasty

Yong‐Hao Pua, Hakmook Kang, Julian Thumboo et al. · 2019 · Knee Surgery Sports Traumatology Arthroscopy

PURPOSE: Machine-learning methods are flexible prediction algorithms with potential advantages over conventional regression. This study aimed to use machine learning methods to predict post-total knee arthroplasty (TKA) walking limitation,…

View details →
Negative / Null Result ReportOpen accessMedicine

Phase 2 study of eribulin mesylate as first-line therapy for locally recurrent or metastatic human epidermal growth factor receptor 2-negative breast cancer

Kristi McIntyre, Joyce O’Shaughnessy, Lee S. Schwartzberg et al. · 2014 · Breast Cancer Research and Treatment

Eribulin mesylate, a novel non-taxane microtubule dynamics inhibitor, is approved for treatment of metastatic breast cancer (MBC) in patients who have previously received at least 2 chemotherapeutic regimens for MBC that should have…

View details →
Negative / Null Result ReportOpen accessMedicine

The significant effect of the choice of ionic current integration method in cardiac electro‐physiological simulations

Pras Pathmanathan, Gary R. Mirams, James Southern et al. · 2011 · International Journal for Numerical Methods in Biomedical Engineering

Abstract Finite element (FE) cardiac electro‐physiology solvers commonly have ionic current determined at mesh nodes but required element interiors. We consider two interpolation approaches: (i) ionic current interpolation (ICI), where nodal ionic currents are linearly interpolated into the element and (ii) state variable interpolation (SVI), where cell model state variables are interpolated instead, from which the ionic current is evaluated. We explain why SVI leads to a method which is massively more computationally demanding than ICI (more than might originally be expected), and then demons

View details →
Negative / Null Result ReportOpen accessMedicine

Comparison of serum and urinary biomarker panels with albumin/creatinine ratio in the prediction of renal function decline in type 1 diabetes

Marco Colombo, Stuart J. McGurnaghan, Luke A. K. Blackbourn et al. · 2020 · Diabetologia

Abstract Aims/hypothesis We examined whether candidate biomarkers in serum or urine can improve the prediction of renal disease progression in type 1 diabetes beyond prior eGFR, comparing their performance with urinary albumin/creatinine ratio (ACR). Methods From the population-representative Scottish Diabetes Research Network Type 1 Bioresource (SDRNT1BIO) we sampled 50% and 25% of those with starting eGFR below and above 75 ml min −1 [1.73 m] −2 , respectively ( N = 1629), and with median 5.1 years of follow-up. Multiplexed ELISAs and single molecule array technology were used to measure nin

View details →
Negative / Null Result ReportOpen accessMedicine

Economic outcomes of percutaneous coronary intervention with drug‐eluting stents versus bypass surgery for patients with left main or three‐vessel coronary artery disease: One‐year results from the SYNTAX trial

David J. Cohen, Tara A. Lavelle, Ben van Hout et al. · 2011 · Catheterization and Cardiovascular Interventions

OBJECTIVES: To evaluate the cost-effectiveness of alternative approaches to revascularization for patients with three-vessel or left main coronary artery disease (CAD). BACKGROUND: Previous studies have demonstrated that, despite higher…

View details →
Negative / Null Result ReportOpen accessMedicine

Platelet-Rich Plasma (PRP): Molecular Mechanisms, Actions and Clinical Applications in Human Body

Wen-Shan Wu, Li-Ru Chen, Kuo-Hu Chen · 2025 · International Journal of Molecular Sciences

Platelet-rich plasma (PRP) is an autologous blood-derived concentrate increasingly utilized in regenerative medicine for its ability to accelerate healing and tissue repair. PRP is broadly classified by leukocyte content, fibrin architecture, and platelet concentration, with classification systems developed to standardize characterization. Preparation methods, including single- or double-spin centrifugation and buffy coat techniques, influence the final composition of PRP, determining the relative proportions of platelets, leukocytes, plasma proteins, and extracellular vesicles. These componen

View details →
Negative / Null Result ReportOpen accessMedicine

Maternal and fetal genetic contribution to gestational weight gain

Nicole M. Warrington, Rebecca C. Richmond, Bjarke Fenstra et al. · 2017 · International Journal of Obesity

BACKGROUND: Clinical recommendations to limit gestational weight gain (GWG) imply high GWG is causally related to adverse outcomes in mother or offspring, but GWG is the sum of several inter-related complex phenotypes (maternal fat deposition and vascular expansion, placenta, amniotic fluid and fetal growth). Understanding the genetic contribution to GWG could help clarify the potential effect of its different components on maternal and offspring health. Here we explore the genetic contribution to total, early and late GWG. PARTICIPANTS AND METHODS: A genome-wide association study was used to

View details →
Negative / Null Result ReportOpen accessMedicine

Reduced Frontoparietal Activity in Schizophrenia Is Linked to a Specific Deficit in Goal Maintenance: A Multisite Functional Imaging Study

Andrew Poppe, Deanna M. Barch, Cameron S. Carter et al. · 2016 · Schizophrenia Bulletin

Patients with schizophrenia (SZ) previously demonstrated specific deficits in an executive function known as goal maintenance, associated with reduced middle frontal gyrus (MFG) activity. This study aimed to validate a new tool-the Dot…

View details →
Negative / Null Result ReportOpen accessMedicine

Metabolic cost of level, uphill, and downhill running in highly cushioned shoes with carbon-fiber plates

Clarissa S. Whiting, Wouter Hoogkamer, Rodger Kram · 2021 · Journal of sport and health science/Journal of Sport and Health Science

BACKGROUND: Compared to conventional racing shoes, Nike Vaporfly 4% running shoes reduce the metabolic cost of level treadmill running by 4%. The reduction is attributed to their lightweight, highly compliant, and resilient midsole foam…

View details →
Negative / Null Result ReportOpen accessMedicine

Identification of complications that have a significant effect on length of stay after spine surgery and predictive value of 90-day readmission rate

Sanjay Yadla, George M. Ghobrial, Peter G. Campbell et al. · 2015 · Journal of Neurosurgery Spine

OBJECT: Complications after spine surgery have an impact on overall outcome and health care expenditures. The increased cost of complications is due in part to associated prolonged hospital stays. The authors propose that certain…

View details →
Negative / Null Result ReportOpen accessMedicine

Machine learning-based prediction model for responses of bDMARDs in patients with rheumatoid arthritis and ankylosing spondylitis

Seulkee Lee, Seonyoung Kang, Yeonghee Eun et al. · 2021 · Arthritis Research & Therapy

BACKGROUND: Few studies on rheumatoid arthritis (RA) have generated machine learning models to predict biologic disease-modifying antirheumatic drugs (bDMARDs) responses; however, these studies included insufficient analysis on important features. Moreover, machine learning is yet to be used to predict bDMARD responses in ankylosing spondylitis (AS). Thus, in this study, machine learning was used to predict such responses in RA and AS patients. METHODS: Data were retrieved from the Korean College of Rheumatology Biologics therapy (KOBIO) registry. The number of RA and AS patients in the traini

View details →
Negative / Null Result ReportOpen accessMedicine

Change in Measured GFR Versus eGFR and CKD Outcomes

Elaine Ku, Dawei Xie, Michael G. Shlipak et al. · 2015 · Journal of the American Society of Nephrology

Measured GFR (mGFR) has long been considered the gold standard measure of kidney function, but recent studies have shown that mGFR is not consistently superior to eGFR in explaining CKD-related comorbidities. The associations between…

View details →
Failed Experiment ReportOpen accessMedicine

Efficacy and biodistribution analysis of intracerebroventricular administration of an optimized scAAV9-SMN1 vector in a mouse model of spinal muscular atrophy

Nicole Armbruster, Annalisa Lattanzi, M. Jeavons et al. · 2016 · Molecular Therapy — Methods & Clinical Development

Spinal muscular atrophy (SMA) is an autosomal recessive disease of variable severity caused by mutations in the SMN1 gene. Deficiency of the ubiquitous SMN function results in spinal cord α-motor neuron degeneration and proximal muscle…

View details →