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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

Atorvastatin for patients with cirrhosis. A randomized, placebo-controlled trial

Thit Mynster Kronborg, Robert Schierwagen, Kajetan Trôst et al. · 2023 · Hepatology Communications

BACKGROUND: Patients with cirrhosis and portal hypertension face a high risk of complications. Besides their anti-inflammatory and antifibrotic effects, statins may reduce portal pressure and thus the risk of complications and mortality.…

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Negative / Null Result ReportOpen accessMedicine

NEWS 2 – too little evidence to implement?

Luke Hodgson, Jo Congleton, Richard Venn et al. · 2018 · Clinical Medicine

ABSTRACT The Royal College of Physicians (RCP) recently published the National Early Warning Score 2 (NEWS2), aiming to improve safety for patients with hypercapnic respiratory failure by suggesting a separate oxygen saturation (SpO2)…

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Negative / Null Result ReportOpen accessMedicine

Glaucoma-Associated Mutations in the Optineurin Gene Have Limited Impact on Parkin-Dependent Mitophagy

Kseniia Chernyshova, Keiichi Inoue, Shun‐ichi Yamashita et al. · 2019 · Investigative Ophthalmology & Visual Science

Purpose: Glaucoma results in progressive degeneration of the optic nerve and irreversible vision loss. Several mutations in the gene encoding optineurin (OPTN), the receptor for Parkin-dependent mitochondrial autophagy (mitophagy), are…

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Negative / Null Result ReportOpen accessMedicine

Adding Concurrent Chemotherapy to Intensity-Modulated Radiotherapy Does Not Improve Treatment Outcomes for Stage II Nasopharyngeal Carcinoma: A Phase 2 Multicenter Clinical Trial

Xiaodong Huang, Xiaozhong Chen, Chong Zhao et al. · 2020 · Frontiers in Oncology

Purpose: To explore the efficacy of concomitant chemotherapy in intensity-modulated radiotherapy(IMRT) to treat stage II nasopharyngeal carcinoma (NPC). Methods and Materials: In this randomized phase 2 study (registered with ClinicalTrials.gov, (NCT01187238)), eligible patients with stage II (2010 UICC/AJCC) NPC were randomly assigned to either IMRT alone (RT group) or IMRT combined with concurrent cisplatin (40 mg/m2, weekly) (CCRT group). The primary endpoint was overall survival (OS). The second endpoints included local failure-free survival (LFFS), regional failure-free survival (RFFS), d

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Negative / Null Result ReportOpen accessMedicine

Efficacy and safety of chronomodulated irinotecan, oxaliplatin, 5‐fluorouracil and leucovorin combination as first‐ or second‐line treatment against metastatic colorectal cancer: Results from the International EORTC 05011 Trial

Pasquale F. Innominato, Abdoulaye Karaboué, C. Focan et al. · 2020 · International Journal of Cancer

The triplet combination of irinotecan, oxaliplatin and fluorouracil is an active frontline regimen in metastatic colorectal cancer, but scarce data exist on its use as salvage treatment. We aimed at assessing its safety and efficacy profiles with its circadian-based administration (chronoIFLO5) as either first- or second-line treatment, within the time-finding EORTC 05011 trial. Five-day chronoIFLO5 was administered every 3 weeks in patients with PS 0, 1 or 2. It consisted of chronomodulated irinotecan (180 mg/sqm), oxaliplatin (80 mg/sqm) and fluorouracil-leucovorin (2800 and 1200 mg/sqm, res

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Negative / Null Result ReportOpen accessMedicine

The impaired response of nasal epithelial cells to microplastic stimulation in asthma and COPD

Magdalena Paplińska‐Goryca, Paulina Misiukiewicz‐Stępień, Monika Wróbel et al. · 2025 · Scientific Reports

Microplastic particles from the air are inhaled and accumulate in the lungs, potentially causing immunological reactions and airway tissue injury. This study aimed to evaluate the biological effects of polyamide fibres on nasal epithelium…

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Negative / Null Result ReportOpen accessMedicine

Very Early Administration of Progesterone Does Not Improve Neuropsychological Outcomes in Subjects with Moderate to Severe Traumatic Brain Injury

Felicia C. Goldstein, Angela F. Caveney, Vicki Hertzberg et al. · 2016 · Journal of Neurotrauma

A Phase III, double-blind, placebo-controlled trial (ProTECT III) found that administration of progesterone did not reduce mortality or improve functional outcome as measured by the Glasgow Outcome Scale Extended (GOSE) in subjects with…

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Replication FailureOpen accessMedicine

ALBAN (GETUG-AFU 37): a phase III, randomized, open-label international trial of intravenous atezolizumab and intravesical Bacillus Calmette–Guérin (BCG) versus BCG alone in BCG-naive high-risk, non-muscle-invasive bladder cancer (NMIBC)

M. Roupret, Aurélie Bertaut, G. Pignot et al. · 2025 · Annals of Oncology

BACKGROUND: Standard treatment of high-risk non-muscle-invasive bladder cancer (NMIBC) after transurethral resection of bladder tumor is intravesical instillation with Bacillus Calmette-Guérin (BCG) (induction and maintenance regimens);…

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Negative / Null Result ReportOpen accessMedicine

Photodynamic therapy changes tumour immunogenicity and promotes immune-checkpoint blockade response, particularly when combined with micromechanical priming

Catarina S. Lobo, Maria Inês P. Mendes, Diogo A. Pereira et al. · 2023 · Scientific Reports

Photodynamic therapy (PDT) with redaporfin stimulates colon carcinoma (CT26), breast (4T1) and melanoma (B16F10) cells to display high levels of CD80 molecules on their surfaces. CD80 overexpression amplifies immunogenicity because it increases same cell (cis) CD80:PD-L1 interactions, which (i) disrupt binding of T-cells PD-1 inhibitory receptors with their ligands (PD-L1) in tumour cells, and (ii) inhibit CTLA-4 inhibitory receptors binding to CD80 in tumour cells. In some cancer cells, redaporfin-PDT also increases CTLA-4 and PD-L1 expressions and virtuous combinations between PDT and immune

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Negative / Null Result ReportOpen accessMedicine

Dietary isoflavone intake is not statistically significantly associated with breast cancer risk in the Multiethnic Cohort

Yukiko Morimoto, Gertraud Maskarinec, Song‐Yi Park et al. · 2014 · British Journal Of Nutrition

Given the high intake levels of soya and low incidence rates of breast cancer in Asian countries, isoflavones, substances with an oestrogen-like structure occurring principally in soyabeans, are postulated to be cancer protective. In the…

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Negative / Null Result ReportOpen accessMedicine

Obese Rats Exhibit High Levels of Fat Necrosis and Isoprostanes in Taurocholate-Induced Acute Pancreatitis

Javier Pereda, Salvador Pérez, Javier Escobar et al. · 2012 · PLoS ONE

BACKGROUND: Obesity is a prognostic factor for severity in acute pancreatitis in humans. Our aim was to assess the role of oxidative stress and abdominal fat in the increased severity of acute pancreatitis in obese rats. METHODOLOGY: Taurocholate-induced acute pancreatitis was performed in lean and obese Zucker rats. Levels of reduced glutathione, oxidized glutathione, L-cysteine, cystine, and S-adenosylmethionine were measured in pancreas as well as the activities of serine/threonine protein phosphatases PP1 and PP2A and tyrosin phosphatases. Isoprostane, malondialdehyde, triglyceride, and fr

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Negative / Null Result ReportOpen accessMedicine

Clinical outcomes of patients with corticosteroid refractory immune checkpoint inhibitor-induced enterocolitis treated with infliximab

James L. Alexander, Hajir Ibraheim, Bhavisha P. Sheth et al. · 2021 · Journal for ImmunoTherapy of Cancer

INTRODUCTION: Immune checkpoint inhibitors (CPIs) have changed the treatment landscape for many cancers, but also cause severe inflammatory side effects including enterocolitis. CPI-induced enterocolitis is treated empirically with corticosteroids, and infliximab (IFX) is used in corticosteroid-refractory cases. However, robust outcome data for these patients are scarce. METHODS: We conducted a multicenter (six cancer centers), cohort study of outcomes in patients treated with IFX for corticosteroid-refractory CPI-induced enterocolitis between 2007 and 2020. The primary outcome was corticoster

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Negative / Null Result ReportOpen accessMedicine

Significant association between high serum CCL5 levels and better disease‐free survival of patients with early breast cancer

Yukie Fujimoto, Natsuko Inoue, Koji Morimoto et al. · 2019 · Cancer Science

Analysis of anticancer immunity aids in assessing the prognosis of patients with breast cancer. From 250 operated breast cancers, we focused on serum levels of C-C motif chemokine ligand 5 (CCL5), which is involved in cancer immune…

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Negative / Null Result ReportOpen accessMedicine

The TLR4-PAR1 Axis Regulates Bone Marrow Mesenchymal Stromal Cell Survival and Therapeutic Capacity in Experimental Bacterial Pneumonia

Naveen Gupta, Ranjeet Sinha, Anna Krasnodembskaya et al. · 2018 · Stem Cells

Bone marrow derived mesenchymal stromal cells have been shown to have significant therapeutic effects in experimental models of pneumonia and lung injury. The current study examined the roles of the toll like receptor 4 (TLR4) and protease…

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Negative / Null Result ReportOpen accessMedicine

Comparison of pathogenicity of subtype H9 avian influenza wild-type viruses from a wide geographic origin expressing mono-, di-, or tri-basic hemagglutinin cleavage sites

Rokshana Parvin, Jan Schinkoethe, Christian Grund et al. · 2020 · Veterinary Research

An intravenous pathogenicity index (IVPI) of > 1.2 in chickens or, in case of subtypes H5 and H7, expression of a polybasic hemagglutinin cleavage site (HACS), signals high pathogenicity (HP). Viruses of the H9N2-G1 lineage, which spread across Asia and Africa, are classified to be of low pathogenicity although, in the field, they became associated with severe clinical signs and epizootics in chickens. Here we report on a pre-eminent trait of recent H9N2-G1 isolates from Bangladesh and India, which express a tribasic HACS (motif PAKSKR-GLF; reminiscent of an HPAIV-like polybasic HACS) and comp

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Negative / Null Result ReportOpen accessMedicine

Mortality in Individuals Aged 80 and Older with Type 2 Diabetes Mellitus in Relation to Glycosylated Hemoglobin, Blood Pressure, and Total Cholesterol

Shota Hamada, Martin Gulliford · 2016 · Journal of the American Geriatrics Society

OBJECTIVES: To evaluate whether low glycosylated hemoglobin (HbA1c), blood pressure (BP), and total cholesterol (TC) are associated with lower risk of all-cause mortality in very old individuals with type 2 diabetes mellitus. DESIGN:…

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Negative / Null Result ReportOpen accessMedicine

Efficacy and safety of TACE combined with lenvatinib and PD‐1 inhibitors for unresectable recurrent HCC: A multicenter, retrospective study

Weijun Wang, Zong‐Han Liu, Kang Wang et al. · 2023 · Cancer Medicine

BACKGROUND: There is no consensus on the optimal regimen for unresectable recurrent hepatocellular carcinoma (HCC), so this retrospective study aimed to evaluate the efficacy and safety of transarterial chemoembolization (TACE) combined with lenvatinib and PD-1 inhibitors (T-L-P) versus TACE combined with lenvatinib (T-L) or TACE alone. METHOD: Data were collected from 204 patients with unresectable recurrent HCC who received T-L-P, T-L, or TACE alone at three medical centers from January, 2019 to December, 2020 for analysis. The survival outcomes, tumor response, and adverse events were compa

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Negative / Null Result ReportOpen accessMedicine

Evaluation of gene xpert for routine diagnosis of HIV-associated tuberculosis in Nigeria: A prospective cohort study

Maxwell Akanbi, Chad J. Achenbach, Babafemi Taiwo et al. · 2017 · BMC Pulmonary Medicine

BACKGROUND: Xpert MTB/Rif (Xpert) is described as a game changer in tuberculosis (TB) control. We evaluated the impact of Xpert on diagnosis, time to treatment, and treatment outcome among patients with HIV associated TB in Nigeria. METHODS: Adults with HIV being evaluated for pulmonary TB (PTB) were consecutively enrolled into the study cohort. At baseline, expectorated sputa were examined using Xpert and smear microscopy for Mycobacterium tuberculosis (MTB) and acid fast bacilli, respectively. Patients diagnosed with TB were followed-up until 6 months post TB diagnosis. TB was defined as spu

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Negative / Null Result ReportOpen accessMedicine

Individualized Surgical Approach Planning for Petroclival Tumors Using a 3D Printer

Thomas Muelleman, Jeremy Peterson, Naweed I. Chowdhury et al. · 2015 · Journal of Neurological Surgery Part B Skull Base

Objectives To determine the utility of three-dimensional (3D) printed models in individualized petroclival tumor resection planning by measuring the fidelity of printed anatomical structures and comparing tumor exposure afforded by…

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Negative / Null Result ReportMedicine

A Biomechanical Comparison of One-Third Tubular Plates Versus Periarticular Plates for Fixation of Osteoporotic Distal Fibula Fractures

Adrian T. Davis, Heidi Israel, Lisa K. Cannada et al. · 2012 · Journal of Orthopaedic Trauma

OBJECTIVES: The purpose of this study was to test the biomechanical properties of locking and nonlocking plates using one-third tubular and periarticular plate designs in an osteoporotic distal fibula fracture model. METHODS: Twenty-four…

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Negative / Null Result ReportOpen accessMedicine

Clinically significant association between the maximum standardized uptake value on 18F-FDG PET and expression of phosphorylated Akt and S6 kinase for prediction of the biological characteristics of renal cell cancer

Tomoya Mizuno, Takao Kamai, Hideyuki Abe et al. · 2015 · BMC Cancer

BACKGROUND: The relationship between the clinicopathological features and molecular changes associated with standardized uptake value (SUV) determined by Positron emission tomography (PET) with [18F] fluorodeoxyglucose (18F-FDG PET) in human renal cell carcinoma (RCC) has not been elucidated. On the other hand, overactivation of the phosphatidylinositol 3'kinase (PI3K), serine/threonine kinase Akt, and mammalian target of rapamycin (mTOR) pathway has been detected in a variety of human cancers, including RCC. So far, little is known about the relationship between the SUV and these proteins in

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Negative / Null Result ReportOpen accessMedicine

Prognostic factors of BRAF V600E colorectal cancer with liver metastases: a retrospective multicentric study

Sahir Javed, Stéphane Benoist, Patrick Devos et al. · 2022 · World Journal of Surgical Oncology

BACKGROUND: BRAF V600E-mutant colorectal cancers (CRCs) are associated with shorter survival than BRAF wild-type tumors. Therapeutic decision-making for colorectal liver metastases (CRLM) harboring this mutation remains difficult due to the scarce literature. The aim was to study a large cohort of BRAF V600E-mutant CRLM patients in order to see if surgery extend overall survival among others prognostic factors. METHODS: BRAF V600E-mutant CRCs diagnosed with liver-only metastases, resected or not, were retrospectively identified between April 2008 and December 2017, in 25 French centers. Clinic

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Negative / Null Result ReportOpen accessMedicine

Tumor regression mediated by oncogene withdrawal or erlotinib stimulates infiltration of inflammatory immune cells in EGFR mutant lung tumors

Deborah Ayeni, Braden Miller, Alexandra Kuhlmann et al. · 2019 · Journal for ImmunoTherapy of Cancer

BACKGROUND: Epidermal Growth Factor Receptor (EGFR) tyrosine kinase inhibitors (TKIs) like erlotinib are effective for treating patients with EGFR mutant lung cancer; however, drug resistance inevitably emerges. Approaches to combine immunotherapies and targeted therapies to overcome or delay drug resistance have been hindered by limited knowledge of the effect of erlotinib on tumor-infiltrating immune cells. METHODS: Using mouse models, we studied the immunological profile of mutant EGFR-driven lung tumors before and after erlotinib treatment. RESULTS: We found that erlotinib triggered the re

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Negative / Null Result ReportOpen accessMedicine

The use of a proposed updated EARL harmonization of 18F-FDG PET-CT in patients with lymphoma yields significant differences in Deauville score compared with current EARL recommendations

John Ly, David Minarik, Lars Edenbrandt et al. · 2019 · EJNMMI Research

The Deauville score (DS) is a clinical tool, based on the comparison between lesion and reference organ uptake of 18F-fluorodeoxyglucose (FDG), used to stratify patients with lymphoma into categories reflecting their disease status. With a plethora of positron emission tomography with computed tomography (PET-CT) hard- and software algorithms, standard uptake value (SUV) in lesions and reference organs may differ which affects DS classification and therefore medical treatment. The EANM Research Ltd. (EARL) harmonization program from the European Association of Nuclear Medicine (EANM) partly mi

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