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Browse the failure-mode index

12,384 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 ReportMedicine

Widespread Skeletal Metastases in Medullary Thyroid Carcinoma: Diagnostic Superiority of 68Ga-FAPI PET/CT Over Somatostatin Receptor-Targeted Imaging.

Taheri F, Tanha AS, Aboutorabi RB et al. · 2026 · Clinical nuclear medicine

A 78-year-old woman with medullary thyroid carcinoma (MTC) demonstrated persistently elevated serum calcitonin despite prior surgery and radiotherapy. 99mTc-octreotide imaging failed to detect skeletal metastases, while 68Ga-FAPI PET/CT…

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Negative / Null Result ReportMedicine

Mixture Disease Progression Model to Predict and Cluster the Long-Term Trajectory of Cognitive Decline in Alzheimer's Disease.

Hanazawa R, Sato H, Hirakawa A · 2025 · Therapeutic innovation & regulatory science

Background Alzheimer's disease (AD) is a neurodegenerative disease for which many clinical trials failed to detect treatment effects, possibly due to the heterogeneity of disease progression among the patients. Predicting and clustering a…

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Negative / Null Result ReportMedicine

Is the Eversion Technique Associated with Lower Peri-operative Stroke or Death Compared with Carotid Endarterectomy with Patch Angioplasty? Secondary Data Analysis of the German Statutory Quality Assurance Database.

Knappich C, Bohmann B, Kirchhoff F et al. · 2025 · European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery

Objective Various studies have failed to detect a difference in outcomes between carotid endarterectomy (CEA) with patch angioplasty and eversion CEA. This study aimed to assess whether surgical technique and related department policy are…

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Negative / Null Result ReportMedicine

Measuring individual colony MICs is a more sensitive method to detect the effect of antimicrobials on antimicrobial susceptibility than the proportion of colonies resistant.

Ledesma V, Vanbaelen T, Gestels Z et al. · 2024 · FEMS microbiology letters

The ResistAZM randomized controlled trial found that the receipt of ceftriaxone/azithromycin, compared to ceftriaxone was not associated with an increase in the proportion of oral commensal Neisseria spp. and streptococci with azithromycin…

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Failed Experiment ReportMedicine

Clinical trials targeting tau should be halted.

Olluri A · 2025 · Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia

Experimental drugs lowering brain tau are heralded as improvements in the treatment of Alzheimer's disease. However, the outcomes in clinical trials testing these agents have consistently failed to improve patient outcomes, i.e. slow down…

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Negative / Null Result ReportMedicine

Pretransplant natural antibody levels identify a subset of deceased donor kidney transplant recipients that benefit from infliximab induction.

Petr V, Tichanek F, Liu SL et al. · 2025 · American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons

Targeting peritransplant inflammation via tumor necrosis factor alpha blockade failed to improve kidney transplantation outcomes in the CTOT-19 trial that tested infliximab (IFX) induction. As natural antibodies (nAbs) to cardiolipin and…

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Negative / Null Result ReportMedicine

Association of aerobic fitness and body composition with protein and major lipid class composition of high-density lipoprotein.

Lähteenmäki EI, Lehti S, Jauhiainen M et al. · 2025 · American journal of physiology. Endocrinology and metabolism

Although high-density lipoprotein (HDL) has cardiometabolic protecting properties, interventions to raise HDL cholesterol concentration have failed to improve cardiometabolic health. Hence, HDL composition and functionality might be key…

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Failed Experiment ReportMedicine

Association of primary and secondary hemostasis biomarkers with acute ischemic stroke outcome in patients undergoing thrombectomy, with or without thrombolytics: post hoc analysis of the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands-NO IV.

Barakzie A, Jansen AJG, Cavalcante F et al. · 2025 · Journal of thrombosis and haemostasis : JTH

Background Intravenous thrombolysis (IVT) using recombinant tissue plasminogen activator prior to endovascular thrombectomy treatment (EVT) failed to improve treatment effect in acute ischemic stroke (AIS) patients compared with EVT alone.…

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Negative / Null Result ReportOpen accessMedicine

Neoadjuvant Chemotherapy for Oropharyngeal Cancer Treatment De-Escalation: From Historical Failures to Contemporary HPV-Driven Paradigms.

Sanabria A, Rodrigo JP, Araújo ALD et al. · 2025 · Cancers

Background/Objectives : Oropharyngeal squamous cell carcinoma (OPSCC) management has shifted following recognition of HPV-driven disease. Neoadjuvant chemotherapy (NAC) has historically failed to improve overall survival (OS) in mixed head…

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Negative / Null Result ReportMedicine

Apolipoprotein L1 Genetic Testing and Counseling Does Not Reduce Living Kidney Donors' Willingness to Donate : A Hybrid Type 2 Nonrandomized Controlled Trial.

Gordon EJ, Gacki-Smith J, Smith JD et al. · 2026 · Clinical journal of the American Society of Nephrology : CJASN

Key points Apolipoprotein L1 genetic testing did not reduce potential living donors' willingness to donate, supporting integration of testing into practice. The Apolipoprotein L1 Testing and Counseling Program did not reduce potential…

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Negative / Null Result ReportMedicine

Serial assessment of NT-proBNP and high-sensitivity cardiac troponin with glucagon-like peptide-1 receptor agonist therapy in type 2 diabetes: Insights from EXSCEL.

Kittipibul V, Nguyen M, Welsh P et al. · 2026 · American heart journal

Background In the EXSCEL trial, exenatide did not reduce major adverse cardiovascular events (MACE), but heterogeneity of benefit and the role of cardiac biomarkers remain uncertain. We evaluated the prognostic value of baseline and 1-year…

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Negative / Null Result ReportMedicine

Plasma exchange for severe alveolar hemorrhage in antineutrophil cytoplasmic antibody-associated vasculitis: emulation of a target trial.

Sanna AC, Gendreau S, Desnos C et al. · 2026 · American journal of respiratory and critical care medicine

Rationale Patients with severe antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV)-related diffuse alveolar hemorrhage (DAH) face high mortality. In the PEXIVAS trial, plasma exchange (PLEX) did not reduce death or…

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Negative / Null Result ReportOpen accessMedicine

Association between NT-proBNP and ivabradine in patients after noncardiac surgery: a per-protocol analysis of the PREVENT-MINS study.

Gorka J, Putowski Z, Wludarczyk A et al. · 2025 · Anaesthesiology intensive therapy

Background The PREVENT-MINS trial investigated whether perioperative heart rate reduction with ivabradine could prevent myocardial injury after noncardiac surgery (MINS). Although ivabradine modestly reduced heart rate, it did not reduce…

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Negative / Null Result ReportMedicine

Pearls & Oy-Sters: Plantar Agraphesthesia in Corticobasal Syndrome.

Perkins JA, Price RS, Vizcarra JA · 2026 · Neurology

We describe a 70-year-old man with no significant medical history who developed progressive left leg numbness, gait dysfunction, and recurrent falls. Within a year, he reported difficulty with both initiating steps and perceiving his left…

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Negative / Null Result ReportMedicine

[A Case of Robot-Assisted Thoracoscopic Extended Thymectomy for Thymoma Associated with Generalized Myasthenia Gravis].

Yamaguchi T, Akai S, Uozumi N et al. · 2026 · Gan to kagaku ryoho. Cancer & chemotherapy

A 53-year-old male patient presented with dyspnea and was admitted with the diagnosis of bacterial pneumonia.His respiratory condition did not improve despite the resolution of fever with antibiotic therapy, and he was eventually diagnosed…

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Negative / Null Result ReportMedicine

Reperfusion grade and clinical outcome following medium vessel occlusion thrombectomy in the Endovascular Treatment to Improve Outcomes for Medium Vessel Occlusions (ESCAPE-MeVO) trial.

Diprose W, Fahed R, Volders D et al. · 2026 · Journal of neurointerventional surgery

Background Randomized trials showed that endovascular thrombectomy (EVT) did not improve outcomes in medium vessel occlusion (MeVO) stroke compared with usual care. We investigated whether patients randomized to EVT who achieved…

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