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Browse the failure-mode index

12,246 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 ReportOpen accessMedicine

Rising Use of Ultrasound-Guided Carpal Tunnel Injections: National Trends, Drivers of Utilization, and Outcomes.

Zehner KM, Salib A, Sanchez JG et al. · 2026 · Journal of hand surgery global online

Purpose Carpal tunnel syndrome may be considered for carpal tunnel injection (CTI). Ultrasound (US) guidance has been proposed to improve CTI accuracy, but the trend across the years, factors associated with utilization, and outcomes are…

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Negative / Null Result ReportOpen accessMedicine

Diagnostic utility of Xpert MTB/RIF ultra in clinically suspected tuberculous lymphadenitis in low-burden settings: a single center experience from Saudi Arabia.

Almutairi M, Alalmaee R, Alamer E et al. · 2026 · Journal of clinical tuberculosis and other mycobacterial diseases

Background Tuberculosis (TB) is a major global health issue, particularly among HIV-positive individuals. In Saudi Arabia, the incidence has declined to 8.4 per 100,000 but remains a concern among high-risk groups. Extrapulmonary TB,…

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Methods Dead-EndOpen accessMedicine

The Clinical Validity and Utility of PCR Compared to Conventional Culture and Sensitivity Testing for the Management of Complicated Urinary Tract Infections in Adults: A Secondary (Ad Hoc) Analysis of Pathogen Detection, Resistance Profiles, and Impact on Clinical Outcomes.

Kardjadj M, Chang TW, Chavez R et al. · 2025 · Microorganisms

Clinical success in treating complicated urinary tract infections (cUTIs) depends on accurate pathogen detection, given the common occurrence of polymicrobial infections and antimicrobial resistance. This multicenter, randomized,…

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Failed Experiment ReportOpen accessMedicine

The effects of resistance exercise and leucine-enriched essential amino acid supplementation on muscle mass and physical function in post-gastrectomy patients: a pilot randomized controlled trial.

Sawada A, Yoneta K, Togashi E et al. · 2024 · Journal of physical therapy science

[Purpose] In gastric cancer patients, low muscle mass decreases overall survival and quality of life (QOL). Resistance exercise with leucine-enriched essential amino acid (LEAA) supplementation may prevent muscle mass loss. This study was…

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Negative / Null Result ReportOpen accessMedicine

Cross-sectional and longitudinal associations between statin use and bone density: the Manitoba BMD registry.

Leslie WD, Zarzour F, Binkley N et al. · 2025 · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research

Statins are among the most widely prescribed medications in older individuals. Inconsistent data in humans suggest that statin medications may be associated with greater BMD and lower risk for osteoporosis. We identified 22 393 individuals…

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Negative / Null Result ReportOpen accessMedicine

Prognostic Impact of Different Definitions of White-Coat Hypertension.

Verdecchia P, Coiro S, Bartolini C et al. · 2025 · American journal of hypertension

Background Different definitions of white-coat hypertension (WCH) may explain its variable outcome across studies. Methods In an Italian study started in 1986, we followed 3,153 people with (office blood pressure (BP) >=140/90 mmHg) and…

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Negative / Null Result ReportMedicine

Age differences in the moderating effects of neighbourhood disadvantage on the relationship between physical activity and cognitive function: A longitudinal analysis of the Canadian Longitudinal Study on Aging.

Falck RS, Cosco TD, Wister AV et al. · 2024 · Maturitas

Objectives To explore whether the association between physical activity (PA) and cognition is moderated by neighbourhood disadvantage, and whether this relationship varies with age. Study design A longitudinal analysis of the Canadian…

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Negative / Null Result ReportMedicine

Effectiveness of eDNA for monitoring riverine macroinvertebrates.

Poyntz-Wright IP, Harrison XA, Pedersen S et al. · 2024 · The Science of the total environment

Environmental DNA (eDNA) is a technique increasingly used for monitoring organisms in the natural environment including riverine macroinvertebrates. However, the effectiveness of eDNA for monitoring riverine macroinvertebrates compared…

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Negative / Null Result ReportMedicine

Evaluating direct amplification from viral transport medium for SARS-CoV-2 detection, strain typing, and angiotensin-converting enzyme genotyping and expression assays.

Schilter KF, Kapoor S, Smith BA et al. · 2024 · Laboratory medicine

Objective The aim of this study was to compare the performance of direct amplification of viral nucleic acid from transport medium to extracted nucleic acid for polymerase chain reaction (PCR), sequencing, and genotyping applications.…

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Failed Experiment ReportOpen accessMedicine

Case Report: A case of occult insulinoma localized by [<sup>18</sup>F] FB (ePEG12)12-exendin-4 positron emission tomography with negative findings of selective arterial calcium stimulation test.

Sakaki K, Murakami T, Fujimoto H et al. · 2025 · Frontiers in endocrinology

Background Insulinomas, the most common functional pancreatic neuroendocrine tumors, cause hypoglycemia due to excessive insulin production, leading to severe clinical symptoms like coma or death. Resection surgery is the major curative…

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Failed Experiment ReportOpen accessMedicine

Sub-microscopic schistosomiasis and soil-transmitted helminths in school children: molecular diagnostic evidence and implications for disease elimination.

Mac PA, Anderson KD, Dakul DA · 2026 · Scientific reports

Schistosomiasis and soil-transmitted helminthiasis elimination programmes depend heavily on microscopic diagnostics, yet these methods may fail to detect low-intensity infections that sustain transmission. Molecular techniques could reveal…

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Negative / Null Result ReportMedicine

Neurophysiological investigations in a case of primary paroxysmal hemicrania-tic syndrome.

Maestrini I, Viganò A, Di Stefano G et al. · 2024 · Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology

Background The association between paroxysmal hemicrania (PH) and trigeminal neuralgia-the so-called PH-tic syndrome-has rarely been described. However, a correct diagnosis is crucial since both disorders require specific treatments.…

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Negative / Null Result ReportMedicine

Cell Free Microbial DNA Utilization at a Children's Hospital.

Craver R, Collier S, Anderson M · 2024 · Fetal and pediatric pathology

Background: We investigated the utilization of cell free microbial DNA (cfDNA) at a Children's Hospital. Materials and Methods: cfDNA results were assessed regarding the contribution to therapeutic decisions. Results: Of 80 tests on 59…

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Negative / Null Result ReportMedicine

Biomarker analysis from patients with metastatic PDAC treated with TGFβ antibody, NIS793, plus abraxane+gemcitabine vs. abraxane+gemcitabine alone in a phase II, open label, randomized study.

Pelletier M, Yang J, Joshi M et al. · 2026 · Clinical cancer research : an official journal of the American Association for Cancer Research

Background Transforming Growth Factor Beta (TGFβ) plays a dual role in cancer, acting as a tumor suppressor early in disease but promoting progression and immune evasion when dysregulated. In pancreatic ductal adenocarcinoma (PDAC),…

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Negative / Null Result ReportMedicine

Dietary starch level determines the efficacy of calcium salts of palm fatty acids on nitrogen use efficiency and performance in feedlot lambs.

De S Ferreira JM, Rodrigues HP, Alba HDR et al. · 2026 · Animal : an international journal of animal bioscience

High-concentrate diets supplemented with rumen-protected fats are widely used in feedlot lamb systems to improve energy supply and performance; however, the metabolic efficacy of these lipid sources may depend on the availability of…

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Negative / Null Result ReportMedicine

Erratum.

· 2025 · Nephron

In the article "Immunosuppressant Agents as Add-On Therapy Failed to Improve the Outcome of Immunoglobulin A Nephropathy with Crescent Score C1" [Nephron. 2024;148:587-600; https://doi.org/10.1159/000534788] by Bi et al., the funding grant…

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Negative / Null Result ReportMedicine

Chemoradiotherapy with versus without concurrent immune checkpoint inhibitor for locally advanced esophageal squamous cell carcinoma: a multicenter retrospective study.

Huang JQ, Xiao HM, Ma CX et al. · 2026 · Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus

To compare survival outcomes and safety between concurrent chemoradiotherapy (CCRT) and CCRT with concurrent immune checkpoint inhibitor (ICI) in patients with locally advanced esophageal squamous cell carcinoma. This multicenter cohort…

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Negative / Null Result ReportMedicine

Therapeutic potential of retinoic acid-loaded lipid Nanocapsules in an experimental autoimmune encephalomyelitis mouse model of multiple sclerosis.

Moura RP, Mwema A, Bottemanne P et al. · 2026 · Journal of controlled release : official journal of the Controlled Release Society

Multiple sclerosis (MS) is a chronic neuroinflammatory disease affecting over 2.5 million people worldwide. Despite available therapies, no current treatment halts disease progression or specifically targets remyelination. Here, we…

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