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Browse the failure-mode index

12,218 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

Comparison of Mesenchymal Stromal Cells From Different Origins for the Treatment of Graft-vs.-Host-Disease in a Humanized Mouse Model

Céline Grégoire, Caroline Ritacco, Muriel Hannon et al. · 2019 · Frontiers in Immunology

Mesenchymal stromal cells (MSCs) have potent immunomodulatory properties that make them an attractive tool against graft-versus-host disease (GVHD). However, despite promising results in phase I/II studies, bone marrow (BM-) derived MSCs failed to demonstrate their superiority over placebo in the sole phase III trial reported thus far. MSCs from different tissue origins display different characteristics, but their therapeutic benefits have never been directly compared in GVHD. Here, we compared the impact of BM-, umbilical cord (UC-), and adipose-tissue (AT-) derived MSCs on T-cell function in

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Negative / Null Result ReportOpen accessMedicine

Effects of Cinacalcet on Atherosclerotic and Nonatherosclerotic Cardiovascular Events in Patients Receiving Hemodialysis: The EValuation Of Cinacalcet HCl Therapy to Lower CardioVascular Events (EVOLVE) Trial

David C. Wheeler, Gérard M. London, Patrick S. Parfrey et al. · 2014 · Journal of the American Heart Association

BACKGROUND: Premature cardiovascular disease limits the duration and quality of life on long-term hemodialysis. The objective of this study was to define the frequency of fatal and nonfatal cardiovascular events attributable to…

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Negative / Null Result ReportOpen accessMedicine

Exercise, inflammation, and fatigue in cancer survivors

Emily C. LaVoy, Christopher P. Fagundes, Robert Dantzer · 2026 · PubMed

Cancer-related fatigue significantly disrupts normal functioning and quality of life for a substantial portion of cancer survivors, and may persist for years following cancer treatment. While the causes of persistent fatigue among cancer…

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Negative / Null Result ReportOpen accessMedicine

Utilization of COVID-19 Treatments and Clinical Outcomes among Patients with Cancer: A COVID-19 and Cancer Consortium (CCC19) Cohort Study

Donna R. Rivera, Solange Peters, Orestis A. Panagiotou et al. · 2020 · Cancer Discovery

Abstract Among 2,186 U.S. adults with invasive cancer and laboratory-confirmed SARS-CoV-2 infection, we examined the association of COVID-19 treatments with 30-day all-cause mortality and factors associated with treatment. Logistic…

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Negative / Null Result ReportOpen accessMedicine

Impact of homologous recombination deficiency biomarkers on outcomes in patients with triple-negative breast cancer treated with adjuvant doxorubicin and cyclophosphamide (SWOG S9313)

Priyanka Sharma, William E. Barlow, Andrew K. Godwin et al. · 2017 · Annals of Oncology

Background: Homologous recombination deficiency (HRD)-causing alterations have been reported in triple-negative breast cancer (TNBC). We hypothesized that TNBCs with HRD alterations might be more sensitive to anthracycline plus…

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Negative / Null Result ReportOpen accessMedicine

FADS2 Polymorphisms Modify the Effect of Breastfeeding on Child IQ

Colin Steer, George Davey Smith, Pauline Emmett et al. · 2010 · PLoS ONE

BACKGROUND: Breastfeeding is important for child cognitive development. A study by Caspi et al has suggested that rs174575 within the FADS2 gene moderates this effect so that children homozygous in the minor allele (GG genotype) have similar IQs irrespective of feeding method. METHODS AND PRINCIPAL FINDINGS: In our study of 5934 children aged 8 years, no genetic main effect with IQ was found for rs174575. However, an interaction with this polymorphism was observed such that breastfed GG children performed better than their formula fed counterparts by an additional 5.8 points [1.4, 10.1] (inter

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Negative / Null Result ReportOpen accessMedicine

Hydroxychloroquine in the Treatment of COVID-19: A Multicenter Randomized Controlled Study

Sherief Abd‐Elsalam, Eslam Saber Esmail, Mai Khalaf et al. · 2020 · American Journal of Tropical Medicine and Hygiene

The COVID-19 pandemic is showing an exponential growth, mandating an urgent need to develop an effective treatment. Indeed, to date, a well-established therapy is still lacking. We aimed to evaluate the safety and efficacy of…

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Negative / Null Result ReportOpen accessMedicine

Evaluation of Adjuvant Chemotherapy in Patients With Resected Pancreatic Cancer After Neoadjuvant FOLFIRINOX Treatment

Stijn van Roessel, Eran van Veldhuisen, Sjors Klompmaker et al. · 2020 · JAMA Oncology

IMPORTANCE: The benefit of adjuvant chemotherapy after resection of pancreatic cancer following neoadjuvant combination treatment with folinic acid, fluorouracil, irinotecan, and oxaliplatin (FOLFIRINOX) is unclear. OBJECTIVE: To assess…

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Negative / Null Result ReportOpen accessMedicine

Phylogeography of Japanese Encephalitis Virus: Genotype Is Associated with Climate

Amy J. Schuh, Melissa J. Ward, Andrew Brown et al. · 2013 · PLoS neglected tropical diseases

The circulation of vector-borne zoonotic viruses is largely determined by the overlap in the geographical distributions of virus-competent vectors and reservoir hosts. What is less clear are the factors influencing the distribution of virus-specific lineages. Japanese encephalitis virus (JEV) is the most important etiologic agent of epidemic encephalitis worldwide, and is primarily maintained between vertebrate reservoir hosts (avian and swine) and culicine mosquitoes. There are five genotypes of JEV: GI-V. In recent years, GI has displaced GIII as the dominant JEV genotype and GV has re-emerg

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Negative / Null Result ReportOpen accessMedicine

Transcranial Low-Level Laser Therapy Improves Neurological Performance in Traumatic Brain Injury in Mice: Effect of Treatment Repetition Regimen

Weijun Xuan, Fatma Vatansever, Liyi Huang et al. · 2013 · PLoS ONE

Low-level laser (light) therapy (LLLT) has been clinically applied around the world for a spectrum of disorders requiring healing, regeneration and prevention of tissue death. One area that is attracting growing interest in this scope is the use of transcranial LLLT to treat stroke and traumatic brain injury (TBI). We developed a mouse model of severe TBI induced by controlled cortical impact and explored the effect of different treatment schedules. Adult male BALB/c mice were divided into 3 broad groups (a) sham-TBI sham-treatment, (b) real-TBI sham-treatment, and (c) real-TBI active-treatmen

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Negative / Null Result ReportMedicine

Increased Expression of Vascular Endothelial Growth Factor and Its Receptors, VEGFR-1 and VEGFR-2, in Medullary Thyroid Carcinoma

Clarissa Capp, Simone Magagnin Wajner, Débora Rodrigues Siqueira et al. · 2010 · Thyroid

BACKGROUND: Vascular endothelial growth factor (VEGF-A) expression is upregulated in the majority of human tumors, where it stimulates proliferation, migration, and survival of endothelial cells. Studies have suggested that VEGF inhibitors…

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Negative / Null Result ReportOpen accessMedicine

Does coprescribing nonsteroidal anti‐inflammatory drugs and oral anticoagulants increase the risk of major bleeding, stroke and systemic embolism?

Leonie S. Penner, Sean P. Gavan, Darren M. Ashcroft et al. · 2022 · British Journal of Clinical Pharmacology

AIMS: To examine the risk of gastrointestinal (GI) bleeding, major bleeding, stroke and systemic embolism associated with prescribing nonsteroidal anti-inflammatory drugs (NSAIDs) to adults receiving oral anticoagulant (OAC) therapy. METHODS: We conducted a population-based cohort study in adults receiving OAC therapy using linked primary care (Clinical Practice Research Datalink GOLD) and hospital (Hospital Episodes Statistics) electronic health records. We used cause-specific Cox regression models with time-dependent NSAID treatment in a propensity score matched population to estimate the in

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Negative / Null Result ReportOpen accessMedicine

Neuronal complex I deficiency occurs throughout the Parkinson’s disease brain, but is not associated with neurodegeneration or mitochondrial DNA damage

Irene H. Flønes, Erika Fernández‐Vizarra, Maria Lykouri et al. · 2017 · Acta Neuropathologica

Mitochondrial complex I deficiency occurs in the substantia nigra of individuals with Parkinson's disease. It is generally believed that this phenomenon is caused by accumulating mitochondrial DNA damage in neurons and that it contributes to the process of neurodegeneration. We hypothesized that if these theories are correct, complex I deficiency should extend beyond the substantia nigra to other affected brain regions in Parkinson's disease and correlate tightly with neuronal mitochondrial DNA damage. To test our hypothesis, we employed a combination of semiquantitative immunohistochemical an

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Negative / Null Result ReportMedicine

Efficacy and Safety of a Once‐Yearly Intravenous Zoledronic Acid 5 mg for Fracture Prevention in Elderly Postmenopausal Women with Osteoporosis Aged 75 and Older

Steven Boonen, Dennis M. Black, Cathleen Colón‐Emeric et al. · 2010 · Journal of the American Geriatrics Society

OBJECTIVES: To determine the efficacy of once-yearly intravenous zoledronic acid (ZOL) 5 mg in reducing risk of clinical vertebral, nonvertebral, and any clinical fractures in elderly osteoporotic postmenopausal women. DESIGN: A post hoc…

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Negative / Null Result ReportOpen accessMedicine

Clinical Utility of the Cryptococcal Antigen Lateral Flow Assay in a Diagnostic Mycology Laboratory

Brendan McMullan, Catriona Halliday, Tania C. Sorrell et al. · 2012 · PLoS ONE

BACKGROUND: Cryptococcus neoformans causes life-threatening meningitis. A recently introduced lateral flow immunoassay (LFA) to detect cryptococcal antigen (CRAG) is reportedly more rapid and convenient than standard latex agglutination (LA), but has not yet been evaluated in a diagnostic laboratory setting. METHODS: One hundred and six serum, 42 cerebrospinal fluid (CSF), and 20 urine samples from 92 patients with known or suspected cryptococcosis were tested by LA and LFA, and titres were compared. Results were correlated with laboratory-confirmed cryptococcosis. Serial samples were tested i

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Negative / Null Result ReportOpen accessMedicine

RNA Interference Therapy With ARC‐520 Results in Prolonged Hepatitis B Surface Antigen Response in Patients With Chronic Hepatitis B Infection

Man‐Fung Yuen, Ingolf Schiefke, Jung‐Hwan Yoon et al. · 2019 · Hepatology

BACKGROUND AND AIMS: ARC-520, the first an RNA interference (RNAi) therapeutic, was designed to reduce all RNA transcripts derived from covalently closed circular DNA, leading to a reduction in viral antigens and hepatitis B virus (HBV)…

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Negative / Null Result ReportOpen accessMedicine

Serum Sclerostin Increases in Healthy Adult Men during Bed Rest

Jordan Spatz, E. E. Fields, Elaine W Yu et al. · 2012 · The Journal of Clinical Endocrinology & Metabolism

CONTEXT: Animal models and human studies suggest that osteocytes regulate the skeleton's response to mechanical unloading in part by an increase in sclerostin. However, few studies have reported changes in serum sclerostin in humans…

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Negative / Null Result ReportMedicine

Etiologic Factors in Sialolithiasis

Kevin C. Huoh, David W. Eisele · 2011 · Otolaryngology

OBJECTIVES: The purpose of this study was to investigate etiologic factors for sialolithiasis in a population of patients from the United States. STUDY DESIGN: Retrospective, cohort study. SETTING: Tertiary university. MATERIALS AND…

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Negative / Null Result ReportOpen accessMedicine

Perioperative risk of major non-cardiac surgery in patients with severe aortic stenosis: a reappraisal in contemporary practice

Teruko Tashiro, Sorin V. Pislaru, Jodi M Blustin et al. · 2014 · European Heart Journal

AIMS: Severe aortic stenosis (SAS) is a major risk factor for death after non-cardiac surgery, but most supporting data are from studies over a decade old. We evaluated the risk of non-cardiac surgery in patients with SAS in contemporary…

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Replication FailureMedicine

Long-Term Results of a Randomized, Observation-Controlled, Phase III Trial of Adjuvant Interferon Alfa-2b in Hepatocellular Carcinoma After Curative Resection

Li‐Tzong Chen, Miin-Fu Chen, Lung-An Li et al. · 2011 · Annals of Surgery

OBJECTIVE: To investigate the clinical efficacy of adjuvant interferon alfa-2b (IFNα-2b) therapy on recurrence-free survival (RFS) of patients with postoperative viral hepatitis-related hepatocellular carcinoma (HCC). BACKGROUND: Despite…

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Negative / Null Result ReportMedicine

Robotic Resection is a Good Prognostic Factor in Rectal Cancer Compared with Laparoscopic Resection: Long-term Survival Analysis Using Propensity Score Matching

Jin Kim, Se Jin Baek, Dong-Woo Kang et al. · 2017 · Diseases of the Colon & Rectum

BACKGROUND: Robotic total mesorectal excision for rectal cancer has rapidly increased and has shown short-term outcomes comparable to conventional laparoscopic total mesorectal excision. However, data for long-term oncologic outcomes are…

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