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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.

20227 results in Negative / Null Result Report · page 227 of 675

Negative / Null Result ReportMedicine

Automated perfusion imaging did not improve reliability of ASPECTS or collateral score in late-window large vessel occlusion stroke.

Benomar A, Fahed R, Omar AT et al. · 2026 · Journal of neurointerventional surgery

Background The Alberta Stroke Program Early CT Score (ASPECTS) and CT angiography (CTA) Collateral Score (CS) are routinely used to estimate ischemic core burden and collateral status in acute ischemic stroke due to large vessel occlusion,…

View details →DOI: 10.1136/jnis-2026-025321
Negative / Null Result ReportMedicine

Process development to overcome drug substance agglomeration and restore dissolution performance.

Singhal M, Nidadavole K, Murphy DS et al. · 2026 · Journal of pharmaceutical sciences

Dissolution testing is performed to understand the rate and extent of drug release for assurance of in vivo bioavailability. In this case study, an immediate-release tablet of an investigational BCS Class II compound exhibited slow and…

View details →DOI: 10.1016/j.xphs.2026.104368
Negative / Null Result Report

Continuous mechanical cooling attenuates short-term thermophysiological adaptation in office environments: A randomized parallel-group intervention

Kobas B, Koth SC, Reitmayer A et al. · 2026 · Preprint

Abstract Continuous mechanical cooling is commonly used to maintain thermal comfort in office environments; however, its influence on human thermophysiological adaptation under sedentary conditions remains poorly understood. This study…

View details →DOI: 10.21203/rs.3.rs-9747541/v1
Negative / Null Result ReportMedicine

Comparison of Safe Laser 1800 Infra and Standard Treatment for Chronic Non-Healing Wounds.

Tamás S, György H, András M et al. · 2026 · The international journal of lower extremity wounds

IntroductionThe treatment of chronic non-healing wounds represents a great challenge in healthcare, especially in rehabilitation medicine, as it contributes significantly to increased patient mortality and morbidity. Various types of laser…

View details →DOI: 10.1177/15347346261461464
Negative / Null Result ReportOpen accessMedicine

Adding induction intrathecal cytarabine in newly diagnosed CNS2 B-acute lymphoblastic leukemia does not improve outcomes.

Lee-Miller CA, Kairalla JA, Hibbitts E et al. · 2026 · Blood advances

Abstract Patients with central nervous system (CNS) disease at diagnosis on Children's Oncology Group (COG) B-acute lymphoblastic leukemia (B-ALL) trials AALL0331 and AALL0232 had inferior outcomes, largely secondary to CNS relapse. In…

View details →DOI: 10.1182/bloodadvances.2026019660
Negative / Null Result ReportMedicine

Can the Social Vulnerability Index Enhance Models Predicting Adherence to Craniofacial Speech Evaluations?

Kong BH, Dillon K, Brady CM et al. · 2026 · The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association

ObjectiveTo determine whether the Centers for Disease Control and Prevention's Social Vulnerability Index (SVI) influences models of adherence to speech evaluations beyond individual demographic and clinical factors.DesignRetrospective…

View details →DOI: 10.1177/10556656261436717
Negative / Null Result ReportMedicine

Visceral hypersensitivity following adult chronic social defeat stress is associated with microglial remodeling in the anterior cingulate cortex.

Matsuo A, Kanaya M · 2026 · Psychoneuroendocrinology

Stress contributes significantly to visceral pain hypersensitivity in irritable bowel syndrome (IBS). Although stress during critical developmental periods, such as chronic social defeat stress (CSDS) in adolescence or early-life…

View details →DOI: 10.1016/j.psyneuen.2026.107848
Negative / Null Result ReportMedicine

Effects of Ultra-short Offline States on Item-level Verbal Memory.

Wamsley EJ, Barron J, Livingston WH · 2026 · Journal of cognitive neuroscience

Memory is consolidated during "offline" states of reduced attention to the external stimulus environment, including sleep and resting wakefulness. While consolidation is usually studied on a timescale of hours to days, accumulating…

View details →DOI: 10.1162/jocn.a.2589
Negative / Null Result ReportMedicine

Serum 25-Hydroxyvitamin D Levels did not improve with N-Acetylcysteine administration nor with abstinence in Adults Treated for Alcohol Use Disorder: A Secondary Analysis of a Randomized, Double-Blind, Placebo-Controlled Clinical Trial.

Piazza FRG, Schuch JB, Ferreira DNSDS et al. · 2025 · Revista brasileira de psiquiatria (Sao Paulo, Brazil : 1999)

Objective N-acetylcysteine (NAC) is a medication known for its hepatoprotective properties and potential to reduce cravings and psychoactive substance use. Vitamin D is metabolized in the liver, and individuals with alcohol abuse often…

View details →DOI: 10.47626/1516-4446-2025-4304
Negative / Null Result ReportMedicine

Acute Effect of Thoracic Mobility Exercises on Respiratory Function and Thoracolumbar Mobility in Healthy Adults: A Pilot Crossover Trial.

Leak M, Giambini H, Cheever K et al. · 2026 · Journal of sport rehabilitation

Context Thoracic mobility is integral to respiratory function and mobility of the neck, shoulder, and spine. The efficacy of thoracic mobility exercises in enhancing respiratory function and spinal range of motion (ROM) is well documented…

View details →DOI: 10.1123/jsr.2025-0061
Negative / Null Result ReportMedicine

Multiparametric Electrogram Feature Analysis for Ventricular Tachycardia Functional Extra-Stimulus Substrate Mapping.

Mayer J, Al-Sheikhli J, Wang X et al. · 2026 · JACC. Clinical electrophysiology

Background Functional extra-stimulus (ES) substrate mapping has been shown to reduce the recurrence of ventricular tachycardia (VT) compared with intrinsic rhythm mapping. However, there is no standardized approach to functional ES…

View details →DOI: 10.1016/j.jacep.2025.11.006
Negative / Null Result ReportMedicine

A novel articaine gargle for upper endoscopy in adults: a randomized, double-blind and placebo-controlled trial.

Mattila N, Meinberg M, Juppo A et al. · 2026 · Scandinavian journal of gastroenterology

Objective To assess whether a gargled articaine solution makes gastroscopy more tolerable for the patient. Background Gastroscopy is an unpleasant experience for most people. A drug that is easy to use, has a fast onset, enables quick…

View details →DOI: 10.1080/00365521.2026.2654974
Negative / Null Result ReportMedicine

Growth differentiation factor-15 and bleeding risk in patients with venous thromboembolism.

Hoberstorfer T, Nopp S, Steiner D et al. · 2026 · Journal of thrombosis and haemostasis : JTH

Growth differentiation factor-15 (GDF-15) has been proposed as a bleeding biomarker. To evaluate the predictive value of GDF-15 for clinically relevant bleeding (CRB, major bleeding and clinically relevant non-major bleeding [CRNMB])…

View details →DOI: 10.1016/j.jtha.2026.06.023
Negative / Null Result ReportMedicine

CT-derived hepatic extracellular volume fraction for the assessment of graft rejection after liver transplantation: a retrospective observational study.

Asmundo L, Pansini V, Monti CB et al. · 2026 · Abdominal radiology (New York)

To evaluate the diagnostic performance of hepatic extracellular volume (ECV) fraction derived from delayed single-energy CT for identifying graft rejection in liver transplant recipients and its added value over clinical parameters. This…

View details →DOI: 10.1007/s00261-026-05647-2
Negative / Null Result Report

Theileria orientalis Chitose genotype persists in closed dairy farm via vertical transmission and buparvaquone treatment shows limited efficacy

Li M, Xie T, Liu H et al. · 2026 · Preprint

Abstract Theileria orientalis is a group of tick‑borne protozoan parasites responsible for significant economic losses in cattle worldwide. We previously reported an outbreak of oriental theileriosis due to mixed infection of T. orientalis…

View details →DOI: 10.21203/rs.3.rs-9797774/v1
Negative / Null Result Report

Patient-Reported Chief Complaints Do Not Independently Improve Machine Learning–Based Sagittal Skeletal Classification Beyond Standard Cephalometric Parameters: A Nested Cross-Validation Study

Dinç G, Öztürk B, Ciğerim SÇ · 2026 · Preprint

Abstract Objectives Sagittal skeletal classification is central to orthodontic diagnosis. This study aimed to (1) develop and validate an interpretable machine learning (ML) model for three-class sagittal skeletal classification (Class I,…

View details →DOI: 10.21203/rs.3.rs-9470812/v1
Negative / Null Result Report

Discovery of Tcf7 regulators with clonally-resolved CRISPR screens identifies Trim28 as a mediator of CD8 T cell differentiation in tumors

Schwartz MA, Lue D, Mutaher M et al. · 2026 · Preprint

Stem-like TCF7+ CD8 T cells sustain anti-tumor responses and support immune checkpoint blockade. We systematically identified regulators of this cell state using genome-wide CRISPR screens in primary T cells in vitro . Using random…

View details →DOI: 10.64898/2026.06.14.732162
Negative / Null Result ReportMedicine

Predictive value of ultrasound-measured tongue base thickness for upper airway obstruction during monitored anesthesia care: a single-center prospective observational study.

Kikkawa K, Takeuchi M, Sakaguchi D et al. · 2026 · Journal of anesthesia

Purpose Monitored anesthesia care (MAC) is increasingly used for various procedures, but sedation-related upper airway obstruction may lead to hypoxemia or conversion to general anesthesia. This study evaluated whether preoperative tongue…

View details →DOI: 10.1007/s00540-026-03792-y
Negative / Null Result ReportMedicine

Effect of Pericapsular Nerve Group Block on Prehabilitation in Femoral Neck Fractures: A Randomized, Double-Blind, Placebo-Controlled Trial.

Jin Z, Ueda K, Higo F et al. · 2026 · Anesthesia and analgesia

Background Prehabilitation during unavoidable surgical delay after an acute femoral neck fracture may mitigate rapid functional decline but is often limited by movement-evoked pain. The pericapsular nerve group (PENG) block is a…

View details →DOI: 10.1213/ane.0000000000008147
Negative / Null Result ReportMedicine

Association between arterial to end-tidal carbon dioxide gradient and prehospital hemodynamic status in patients with moderate-to-severe traumatic brain injury.

Navarro LP, Combes X, Galinski M et al. · 2026 · BMC emergency medicine

Introduction We aimed to assess the relationship between arterial partial pressure of carbon dioxide (PaCO 2 ) and end-tidal carbon dioxide (EtCO 2 ) according to three prehospital hemodynamic status and to evaluate whether…

View details →DOI: 10.1186/s12873-026-01649-x
Negative / Null Result ReportMedicine

Effects of high oleic expeller-pressed soybean meal on milk fat production and fatty acid digestibility in lactating dairy cows undergoing a milk fat depression challenge.

Burtnett SL, Bomberger RA, Harvatine KJ · 2026 · Journal of dairy science

Oleic acid has a lower risk for biohydrogenation-induced milk fat depression (MFD) than linoleic acid and can act as an emulsifier to aid fatty acid (FA) digestion in the small intestine. Our objective was to evaluate the effect of high…

View details →DOI: 10.3168/jds.2026-28283