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Browse the failure-mode index

12,241 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.

Replication FailureOpen accessMedicine

Paraneoplastic Anti-N-methyl-D-aspartate Receptor Encephalitis Associated with Small Cell Lung Cancer: A Dramatic Recovery after Chemotherapy.

Yano K, Ishida T, Yokosuka K et al. · 2026 · Internal medicine (Tokyo, Japan)

Tumor management is the cornerstone of treatment for anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis that is refractory to immunosuppressive therapy. However, little is known about the effectiveness of chemotherapy for…

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Failed Experiment ReportMedicine

Noninvasive Right Ventricular Myocardial Work by Pressure-Strain Loop: A New Perspective on Right Ventricular Function and Cardiac Resynchronization Therapy.

Tian F, Hu C, Liu W et al. · 2025 · The American journal of cardiology

Myocardial work (MW) by noninvasive pressure-strain loop (PSL) is a novel echocardiographic tool that provides a more precise estimation of right ventricular (RV) performance by accounting for the RV loading conditions. The study sought to…

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Negative / Null Result ReportMedicine

Neutrophils shape the therapeutic efficacy of sirtuin 1 activity modulators in murine influenza virus infection.

Simeonova L, Leseva M, Stoyanov K et al. · 2025 · Biochimica et biophysica acta. Molecular basis of disease

Sirtuin 1 (Sirt1), a class III histone deacetylase, is a key regulator of gene expression in various immune cell types, including neutrophils, during infection and acute inflammation. Herein, we studied the effect of the Sirt1 activator…

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Negative / Null Result ReportMedicine

Radiation Therapy Dose Escalation Failed to Improve Local Control for Intermediate-Risk Rhabdomyosarcoma on ARST1431: A Report From the Children's Oncology Group.

Jackson CB, Xue W, Gupta AA et al. · 2025 · International journal of radiation oncology, biology, physics

Purpose To evaluate local failure (LF) rates for patients with intermediate-risk rhabdomyosarcoma treated on the Children's Oncology Group ARST1431 clinical trial, the first and largest international, phase 3 randomized study to use FOXO1…

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Negative / Null Result ReportOpen accessMedicine

Bertolotti joint-related cyst: illustrative case.

Chow WD, Spinner RJ, Amrami KK et al. · 2026 · Journal of neurosurgery. Case lessons

Background Bertolotti syndrome is an underrecognized cause of chronic low back pain. Back pain generated from Bertolotti syndrome is believed to result from altered weight dissipation mechanics and/or instability of the pseudoarticulation,…

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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…

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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…

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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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