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Browse the failure-mode index

12,375 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.

Failed Experiment ReportMedicine

Breaking the Rules: Upper Pole Ureteropelvic Junction Obstruction Causing Massive Urinary Tract Dilation in a Neonate With Prenatal Diagnosis of Multicystic Dysplastic Kidney.

Grant Owens R, Lockwood G, Storm D · 2025 · Urology

Prenatal diagnosis of left multicystic dysplastic kidney (MCDK) and ureterocele was made in a male fetus at 24-week gestation. The initial postnatal course was uneventful. At 4 weeks of age, he developed urosepsis and respiratory distress.…

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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…

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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…

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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…

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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…

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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…

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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…

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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,…

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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…

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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…

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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…

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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…

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Failed Experiment ReportMedicine

Leukocoria in a 4-year-old boy.

Altamirano F, Gonzalez E, Oke I · 2024 · Digital journal of ophthalmology : DJO

A healthy 4-year-old boy referred for evaluation of an abnormal red reflex in the left eye was noted, on fundus examination, to have extensive white, striated lesions surrounding the optic nerve that involved the superior and inferior…

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Negative / Null Result ReportMedicine

Long-term prognosis at 1.5 years after infection with wild-type strain of SARS-CoV-2 and Alpha, Delta, as well as Omicron variants.

Agergaard J, Gunst JD, Schiøttz-Christensen B et al. · 2023 · International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases

Objectives Knowledge is limited on how changing SARS-CoV-2 variants may translate into different characteristics and affect the prognosis of patients with long COVID, especially following Omicron variants. We compared long-term prognosis…

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