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Failure-mode index

Search what already failed

A searchable index of real negative results, null findings, and replication failures from the published literature — so you can learn what didn't work before repeating it.

WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record (title, authors, DOI) compiled from open scholarly databases, with the abstract shown in full only where the paper is openly licensed (e.g. Creative Commons); otherwise a short excerpt is shown for reference under fair use. WASTE classifies each work by failure type; classifications are automated and approximate.

19847 results in Negative / Null Result Report · page 313 of 662

Negative / Null Result ReportOpen accessMedicine

Difficult to manage axial spondyloarthritis patients have high burden of pain-related comorbidities and adverse long-term outcome.

Bertsias A, Flouri I, Emmanouilidou E et al. · 2026 · Arthritis research & therapy

Background Difficult to manage (D2M) axial spondyloarthritis (axSpA) is an evolving clinical concept. We aimed to assess the prevalence, predictors and long-term outcomes of D2M axSpA. Methods Prospective single center cohort study of…

View details →DOI: 10.1186/s13075-026-03732-x
Negative / Null Result ReportOpen accessMedicine

Failure to Improve Lumbar Lordosis After Single-Level TLIF for Degenerative Spondylolisthesis Does Not Impair Clinical Outcomes at 8.6 Years Postoperatively: A Prospective Cohort of 32 Patients.

Bošnjak K, Vengust R · 2025 · Journal of clinical medicine

Background : We aimed to analyze radiographic sagittal balance parameters in patients who underwent a TLIF procedure for single-level degenerative spondylolisthesis with a mean follow-up of 8.6 years and to determine whether lumbar…

View details →DOI: 10.3390/jcm14155457
Negative / Null Result ReportOpen accessMedicine

Acute-onset Copper Deficiency Following Surgery in a Dialysis Patient: Diagnostic Challenges and Risk Factor Interaction.

Ikegishi Y, Abe R, Maehata A et al. · 2026 · Internal medicine (Tokyo, Japan)

Copper deficiency is a rare but critical cause of anemia and neurological impairment. We herein report a hemodialysis patient who developed acute-onset copper deficiency after spinal surgery with zinc supplementation, despite no…

View details →DOI: 10.2169/internalmedicine.5960-25
Negative / Null Result ReportMedicine

Partial versus whole tumor-volume irradiation in combination with immunotherapy: Comparable outcomes in immunosuppressed mouse models of oral squamous cell carcinoma.

Pisljar Z, Markelc B, Brezar SK et al. · 2025 · Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie

Radiotherapy is a standard therapy for oral squamous cell carcinoma (OSCC) with immunomodulatory potential. Due to high lymphocyte radiosensitivity, partial tumor-volume irradiation (pIR), targeting only part of the tumor, is being…

View details →DOI: 10.1016/j.biopha.2025.118107
Negative / Null Result ReportOpen accessMedicine

Effect of Small Molecules on Blastocyst Development and Outgrowth Establishment of Bovine Haploid Parthenogenetic Embryos.

Aguila L, Castillo R, Pérez-García F et al. · 2026 · Animals : an open access journal from MDPI

Haploid embryos constitute a valuable model for genetic and epigenetic studies; however, their developmental competence is reduced compared with diploid counterparts. This study evaluated whether supplementation of the culture medium with…

View details →DOI: 10.3390/ani16101517
Negative / Null Result ReportMedicine

Beetroot juice intake positively influenced gut microbiota and inflammation but failed to improve functional outcomes in adults with long COVID: A pilot randomized controlled trial.

Calvani R, Giampaoli O, Marini F et al. · 2024 · Clinical nutrition (Edinburgh, Scotland)

Background & aims Long-term effects of coronavirus disease 2019 (long COVID) develop in a substantial number of people following an acute COVID-19 episode. Red beetroot juice may have positive effects on multiple pathways involved in long…

View details →DOI: 10.1016/j.clnu.2024.11.023
Negative / Null Result ReportOpen accessMedicine

One size does not fit all: uncontrolled T2 inflammation on tezepelumab-a case series.

Tardif A, Boulay ME, Côté A et al. · 2026 · Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology

BACKGROUND: Tezepelumab is the most recent human monoclonal antibody in the therapeutic arsenal of patients with severe uncontrolled asthma. It neutralizes thymic stromal lymphopoietin (TSLP). Phase 2 and phase 3 studies showed a…

View details →DOI: 10.1186/s13223-026-01037-x
Negative / Null Result ReportOpen accessMedicine

The effect of motivational interviewing on patients with early post-stroke depression: a quasi-experimental study.

Fu Y, Zhang Y, Deng Q et al. · 2025 · BMC psychiatry

Background Post-stroke depression (PSD) constitutes an important complication of stroke, affecting approximately one-third of stroke patients. PSD decreases rehabilitation motivation, delays function recovery, and increases the family and…

View details →DOI: 10.1186/s12888-025-06673-y
Negative / Null Result ReportMedicine

M2 macrophage-targeting peptide-modified liposomes enhance the uptake and antitumor efficacy of liposomal IFN-γ in mice with C26 colon carcinoma.

Kateh Shamshiri M, Vakili-Ghartavol R, Aiyelabegan HT et al. · 2025 · Cytokine

While liposomes enhance the safety and pharmacokinetic profile of free drugs, they have not significantly improved therapeutic efficacy. To overcome this challenge, targeted depletion of tumor-associated macrophages (TAMs) shows…

View details →DOI: 10.1016/j.cyto.2025.156860
Negative / Null Result Report

D-Dimers and MPO Are No Suitable Biomarkers for Application in Abdominal Aortic Aneurysm (AAA) Surveillance in a Real-World Setting of Vascular Surgery Patients

Siegrist H, Spieler A, Peters AS et al. · 2024 · Preprint

There is currently no clinically valid biomarker for predicting the growth and prognosis of abdominal aortic aneurysms (AAA). The most promising candidates with highest diagnostic values are plasma D-dimers and markers of activated…

View details →DOI: 10.20944/preprints202410.2260.v1
Negative / Null Result Report

Sex-dependent effects of a glutamine supplementation on metabolic disorders, intestinal barrier function and gut microbiota in mice with diet-induced obesity

Lefebvre C, Tiffay A, Breemeersch C et al. · 2024 · Preprint

Rationale Obesity is often associated with sex-dependent metabolic complications, in which altered intestinal barrier function and gut microbiota contribute. Glutamine (Gln) supplementation previously showed beneficial effects on gut…

View details →DOI: 10.1101/2024.11.21.624683
Negative / Null Result ReportOpen accessMedicine

Nintedanib Lacks Efficacy in a Spirometry-Confirmed and Bleomycin-Induced Mouse Model of Idiopathic Pulmonary Fibrosis.

Bousamaki J, Maciag G, Petersen AG et al. · 2026 · Basic & clinical pharmacology & toxicology

Nintedanib, a multitargeted tyrosine kinase inhibitor, is approved for idiopathic pulmonary fibrosis (IPF) for its ability to slow lung function decline. This study systematically evaluated the effects of nintedanib across three…

View details →DOI: 10.1111/bcpt.70220
Negative / Null Result ReportMedicine

The Influence of Chromatic Aberration on Visual Quality in Patients With Trifocal Intraocular Lenses.

Güngör HS, Łabuz G, Yildirim TM et al. · 2024 · Journal of refractive surgery (Thorofare, N.J. : 1995)

Purpose To investigate how varying levels of longitudinal chromatic aberration (LCA) affect visual quality in patients with trifocal intraocular lenses (IOLs). Methods Twenty-nine patients implanted with trifocal IOLs were assessed for…

View details →DOI: 10.3928/1081597x-20240731-03
Negative / Null Result ReportOpen accessMedicine

Vitamin D Deficiency as a Risk Factor for Onset and Recurrence of Sudden Sensorineural Hearing Loss: A Prospective Cohort Study With Age-Specific Analysis.

Hui Q, Xiang T, Qinglan X et al. · 2026 · Food science & nutrition

The link between Vitamin D (Vit D) deficiency and sudden sensorineural hearing loss (SSNHL), especially regarding recurrence and age-related disparities, remains unclear. Recurrence and age-specific risks of SSNHL are under addressed,…

View details →DOI: 10.1002/fsn3.71383
Negative / Null Result ReportMedicine

Neighborhood bonding and bridging social capital, social activity participation, and short-term cognitive variability in later life.

Hyun J, Cerino ES, Katz MJ et al. · 2025 · The journals of gerontology. Series B, Psychological sciences and social sciences

Objectives Investigating social determinants of health and related outcomes may help identify effective and sustainable intervention targets. This study examined whether contextual-level social capital (bonding and bridging capital) and…

View details →DOI: 10.1093/geronb/gbaf157
Negative / Null Result ReportOpen accessMedicine

Urodynamic findings and vibegron effects on neurogenic lower urinary tract dysfunction caused by human T-cell leukemia virus type I-associated myelopathy/tropical spastic paraparesis.

Kumekawa T, Akaihata H, Natsuya H et al. · 2024 · IJU case reports

Introduction Human T-cell lymphotropic virus type 1 infection can cause HTLV-1-associated myelopathy/tropical spastic paraparesis, characterized by spastic paralysis of both lower limbs. More than 90% of HAM/TSP patients show lower urinary…

View details →DOI: 10.1002/iju5.12773
Negative / Null Result Report

Evaluation of available energy value and digestive metabolism in dairy goats: A comparative study of grain types and processing methods

Su X, Zhang L, Sun Y et al. · 2024 · Preprint

Abstract Background The diverse types and processing methods of grains intricately influence the sites and digestibility of starch digestion, thereby impacting energy utilization. This study aimed to explore the impact of grain variety and…

View details →DOI: 10.21203/rs.3.rs-4958601/v1
Negative / Null Result ReportOpen accessMedicine

Subocclusive ileus following off-label high-dose semaglutide use.

Nikolaeva A, Vandeputte M · 2025 · Endocrinology, diabetes & metabolism case reports

Summary Semaglutide, a GLP-1 receptor agonist (RA), is approved for the treatment of type 2 diabetes and obesity. However, its increasing off-label use, particularly for cosmetic weight loss, raises concerns considering its potential…

View details →DOI: 10.1530/edm-25-0081
Negative / Null Result ReportMedicine

Evaluating the effects of pro-myelinating drugs on motor function and myelination in a zebrafish model of genetic leukoencephalopathy.

Banerjee S, Berry Y, Fisher E et al. · 2025 · Neuroscience letters

Genetic leukoencephalopathy (gLE) is a white matter disorder affecting the central nervous system, causing hypomyelination, developmental delays, motor deterioration, and cognitive, visual, and hearing impairments. Its clinical variability…

View details →DOI: 10.1016/j.neulet.2025.138280
Negative / Null Result ReportMedicine

Venous stenting versus venous ablation.

Alsheekh A, Kibrik P, Marks N et al. · 2025 · Vascular

BackgroundThe minimally invasive procedures of venous ablation and iliac vein stenting are evolving treatment options for venous insufficiency. Yet, there are no studies directly comparing the outcome of these procedures. We performed a…

View details →DOI: 10.1177/17085381241273222