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Browse the failure-mode index

21,241 real negative results, null findings, and replication failures. 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

Feasibility of two levels of protein intake in patients with colorectal cancer: findings from the Protein Recommendation to Increase Muscle (PRIMe) randomized controlled pilot trial

Katherine L. Ford, Michael B. Sawyer, Sunita Ghosh et al. · 2024 · ESMO Open

•Patients were able to increase and sustain dietary protein intake from preintervention levels.•Over one-half of patients in the 2.0 g/kg/day group maintained or gained MM with a 12-week targeted nutrition intervention.•This work…

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Negative / Null Result ReportMedicine

The effects of prehospital TXA on mortality and neurologic outcomes in patients with traumatic intracranial hemorrhage: A subgroup analysis from the prehospital TXA for TBI trial

Susan Rowell, Eric N. Meier, Tatiana Hoyos Gomez et al. · 2024 · The Journal of Trauma: Injury, Infection, and Critical Care

BACKGROUND: In the prehospital tranexamic acid (TXA) for traumatic brain injury (TBI) trial, TXA administered within 2 hours of injury in the out-of-hospital setting did not reduce mortality in all patients with moderate/severe traumatic…

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Negative / Null Result ReportOpen accessImmunology and Microbiology

Laquinimod Modulates Human Astrocyte Function and Dampens Astrocyte-Induced Neurotoxicity during Inflammation

Emanuela Colombo, Rosaria Pascente, Daniela Triolo et al. · 2020 · Molecules

Astrocytes greatly participate to inflammatory and neurotoxic reactions occurring in neurodegenerative diseases and are valuable pharmacological targets to support neuroprotection. Here we used human astrocytes generated from reprogrammed fibroblasts as a cellular model to study the effect of the compound Laquinimod and its active metabolite de-Laquinimod on astrocyte functions and the astrocyte-neuron interaction. We show that human iAstrocytes expressed the receptor for the inflammatory mediator IL1 and responded to it via nuclear translocation of NFκB, an event that did not occur if cells w

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Negative / Null Result ReportOpen accessMedicine

Safety of Avacopan for the Treatment of Antineutrophil Cytoplasmic Antibody–Associated Vasculitis: Combined Data From Three Clinical Trials

Peter A. Merkel, Michael George, Huibin Yue et al. · 2025 · ACR Open Rheumatology

OBJECTIVE: This study aimed to report the safety of avacopan, an oral selective complement C5a receptor antagonist, using pooled data from clinical trials in patients with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis…

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Negative / Null Result ReportOpen accessEngineering

Mathematical Modeling of Operational Reliability of Mine Lifting Equipment Based on Censored Data

Denis A. Zadkov, Nikita MARTYUSHEV, Boris V. Malozyomov et al. · 2026 · Mathematics

In this study, a comprehensive mathematical method for modeling the operational reliability of mine hoisting equipment under conditions of incomplete and heavily censored data is developed. The analyzed dataset includes 259 observations collected over a five-year period for six critical components, with the overall level of censoring reaching 62% and exceeding 70% for long life mechanical subsystems. Considering right, left, and interval censoring, the paper proposes a unified statistical procedure that combines empirical estimation of failure rates with parametric identification using Weibull

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

A Deep Learning and Explainable AI-Based Approach for the Classification of Discomycetes Species

Aras Fahrettin Korkmaz, Fatih Ekinci, Şehmus Altaş et al. · 2025 · Biology

This study presents a novel approach for classifying Discomycetes species using deep learning and explainable artificial intelligence (XAI) techniques. The EfficientNet-B0 model achieved the highest performance, reaching 97% accuracy, a 97% F1-score, and a 99% AUC, making it the most effective model. MobileNetV3-L followed closely, with 96% accuracy, a 96% F1-score, and a 99% AUC, while ShuffleNet also showed strong results, reaching 95% accuracy and a 95% F1-score. In contrast, the EfficientNet-B4 model exhibited lower performance, achieving 89% accuracy, an 89% F1-score, and a 93% AUC. These

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Negative / Null Result ReportOpen accessMedicine

Lack of replication of higher genetic risk load in men than in women with systemic lupus erythematosus

Elisa Alonso‐Perez, Marian Suarez-Gestal, Manuel Calaza et al. · 2014 · Arthritis Research & Therapy

INTRODUCTION: We aimed to replicate a recent study which showed higher genetic risk load at 15 loci in men than in women with systemic lupus erythematosus (SLE). This difference was very significant, and it was interpreted as indicating that men require more genetic susceptibility than women to develop SLE. METHODS: Nineteen SLE-associated loci (thirteen of which are shared with the previous study) were analyzed in 1,457 SLE patients and 1,728 healthy controls of European ancestry. Genetic risk load was calculated as sex-specific sum genetic risk scores (GRS(s)). RESULTS: Our results did not r

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

Cross-Ancestry DNA Methylation Marks of Insulin Resistance in Pregnancy: An Integrative Epigenome-Wide Association Study

Nicolás Fragoso-Bargas, Hannah R. Elliott, Sindre Lee-Ødegård et al. · 2022 · Diabetes

Although there are some epigenome-wide association studies (EWAS) of insulin resistance, for most of them authors did not replicate their findings, and most are focused on populations of European ancestry, limiting the generalizability. In…

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Negative / Null Result ReportOpen accessMedicine

Cancer cachexia: molecular basis and therapeutic advances

Yuting Tan, Rui Xue, Yuwei Pan et al. · 2026 · Signal Transduction and Targeted Therapy

The dynamic interplay between neoplastic cells and the host has been increasingly recognized as important players in the pathogenesis of cancer cachexia, a syndrome affecting ~50-80% of cancer patients with various incidences of different types of malignancies. Despite its prevalence, a comprehensive understanding of cancer cachexia progression, with a holistic view at the cross-organismal, cellular and molecular levels, remains elusive. In this review, we undertake an in-depth exploration of the relevant target organs and their regulatory roles in cancer cachexia, with a particular focus on m

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Negative / Null Result ReportOpen accessHealth Professions

Social inclusion of people with severe mental illness: a review of current practices, evidence and unmet needs, and future directions

Claire Henderson, Yasuhiro Kotera, Brynmor Lloyd‐Evans et al. · 2026 · World Psychiatry

Social inclusion means being able to participate in activities valued within one's community or wider society as one would wish. People with severe mental illness (i.e., psychoses, bipolar disorder, and severe depression) experience some…

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Negative / Null Result ReportOpen accessPhysics and Astronomy

JADES and BlackTHUNDER: rest-frame Balmer-line absorption and the local environment in a Little Red Dot at z = 5

Francesco D’Eugenio, Ignas Juodžbalis, Xihan Ji et al. · 2025 · Monthly Notices of the Royal Astronomical Society

ABSTRACT We present a ‘Little Red Dot’ (LRD) broad-line active galactic nucleus (AGN) at $z=5.077 $, observed with NIRSpec/MSA (micro-shutter assembly) and NIRSpec/IFU (integral-field unit) by the JADES (JWST Advanced Deep Extragalactic Survey) and BlackTHUNDER (Black holes in THe early Universe aNd their DensE surRoundings) surveys. Combining spatially resolved and high-resolution spectroscopy, we characterize its central engine, host, and environment. H$\alpha $ has multiple components, including two broad Gaussians, yielding a black-hole mass $\log (M_{\bullet }/{\rm M}_\odot) = 7.65 $, whi

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Negative / Null Result ReportOpen accessMedicine

Efficacy, public health impact and optimal use of the Takeda dengue vaccine

Bethan Cracknell Daniels, Neil M. Ferguson, Ilaria Dorigatti · 2025 · Nature Medicine

Dengue is the most common arboviral infection, causing substantial morbidity and mortality globally. The licensing of Qdenga, a second-generation vaccine developed by Takeda Pharmaceuticals, is therefore timely, but the potential public health impact of vaccination across transmission settings needs to be evaluated. To address this, we characterized Qdenga's efficacy profile using mathematical models calibrated to published clinical trial data and estimated the public health impact of routine vaccine use. We find that efficacy against both virologically confirmed dengue and hospitalization dep

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Negative / Null Result Report

Eight Days of L-Citrulline or L-Arginine Supplementation Did Not Improve 200-m and 100-m Swimming Time Trials

Ozcan Esen, Mustafa Can Eser, Mekki Abdioglu et al. · 2022 · International Journal of Environmental Research and Public Health

The effects of L-citrulline or L-arginine supplementation on exercise performance are equivocal, and the effects on swimming performance are unclear. We aimed to assess whether 8-day supplementation with L-arginine or L-citrulline…

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Negative / Null Result Report

Physical activity and prenatal depression: going beyond statistical significance by assessing the impact of reliable and clinical significant change

Marina Vargas-Terrones, Taniya S. Nagpal, Maria Perales et al. · 2020 · Psychological Medicine

Abstract Background Previous literature supports exercise as a preventative agent for prenatal depression; however, treatment effects for women at risk for prenatal depression remain unexplored. The purpose of the study was to examine…

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Negative / Null Result Report

“The more you did, the more it made sense”: Problem‐based learning to improve early evidence‐based practice in an undergraduate physiotherapy professional programme

Olive Lennon, Deirdre Phelan, Deborah Wallace et al. · 2019 · Physiotherapy Research International

Abstract Background and Purpose Evidence‐based practice (EBP), which integrates clinical reasoning skills, research evidence, and patient preference, has become standard in curricula for health care professional programs. Students however…

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Negative / Null Result ReportOpen accessAgricultural and Biological Sciences

Response of broilers to supplementation of branched-chain amino acids blends with different valine contents in the starter period under summer conditions

Canan Kop Bozbay, Ahmet Akdag, Helin Atan et al. · 2020 · Animal Bioscience

OBJECTIVE: The objectives of this study were to compare the effects of normal and low protein content (PC) of starter diet supplemented or not with blends of branched-chain amino acids (BCAAs) on growth performance of broilers under summer conditions and to investigate whether these effects altered some quality traits and the characteristics of gastrointestinal tract. METHODS: A total of 768 mixed-sex broiler chicks (Ross 308, one-d-old) with an average initial body weight (BW) of 47.6±1.03 g were allocated into six treatments with four replications in 2×3 factorial arrangement. Factors were:

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

Validation of Polygenic Risk Scores for Coronary Heart Disease in a Middle Eastern Cohort Using Whole Genome Sequencing

Mohamad Saad, Ayman El‐Menyar, Khalid Kunji et al. · 2022 · Circulation Genomic and Precision Medicine

Background: Enthusiasm for using polygenic risk scores (PRSs) in clinical practice is tempered by concerns about their portability to diverse ancestry groups, thus motivating genome-wide association studies in non-European ancestry…

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Negative / Null Result ReportMedicine

In situcell–matrix mechanics in tendon fascicles and seeded collagen gels: implications for the multiscale design of biomaterials

Neil A. Duncan, Sabina B. Bruehlmann, Christopher Hunter et al. · 2012 · Computer Methods in Biomechanics & Biomedical Engineering

Designing biomaterials to mimic and function within the complex mechanobiological conditions of connective tissues requires a detailed understanding of the micromechanical environment of the cell. The objective of our study was to measure…

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Negative / Null Result ReportOpen accessSocial Sciences

A Puzzle Unsolved: Failure to Observe Different Effects of God and Religion Primes on Intergroup Attitudes

Jonathan E. Ramsay, Eddie M. W. Tong, Joyce S. Pang et al. · 2016 · PLoS ONE

Religious priming has been found to have both positive and negative consequences, and recent research suggests that the activation of God-related and community-related religious cognitions may cause outgroup prosociality and outgroup derogation respectively. The present research sought to examine whether reminders of God and religion have different effects on attitudes towards ingroup and outgroup members. Over two studies, little evidence was found for different effects of these two types of religious primes. In study 1, individuals primed with the words "religion", "God" and a neutral contro

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Negative / Null Result ReportOpen accessMedicine

Microstructural White Matter Characteristics in Parkinson's Disease With Depression: A Diffusion Tensor Imaging Replication Study

Colleen Lacey, Lisa Ohlhauser, Jodie R. Gawryluk · 2019 · Frontiers in Neurology

Background Clarifying the neuropathology of depression as a symptom of Parkinson's disease (PD) has been the goal of recent neuroimaging studies; however, results have been conflicting and lack replication. The purpose of the current study was to replicate recent methods that have used diffusion tensor imaging (DTI) to compare individuals with PD with and without depression and to extend previous findings to allow for a better understanding of the results. Methods Thirty-seven participants with de novo PD were retrieved from the Parkinson's Progression Marker's Initiative (PPMI) and were separ

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Negative / Null Result ReportOpen accessBiochemistry, Genetics and Molecular Biology

A pharmacogenetic study of aldehyde oxidase I in patients treated with XK469

Jacqueline Ramı́rez, Tae Won Kim, Wanqing Liu et al. · 2013 · Pharmacogenetics and Genomics

XK469 (NSC 697887) is a selective topoisomerase II β inhibitor eliminated mainly by aldehyde oxidase I (AOX1). We performed a candidate gene study to investigate whether AOX1 genetic variation contributes to interindividual variability in…

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