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Browse the failure-mode index

12,248 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

Clinical impact of TP53 classifications in previously treated advanced driver-negative non-small cell lung cancer: A biomarker analysis of the OAK and POPLAR randomized clinical trials.

Zhou DD, Lord SJ, Lin FP et al. · 2026 · Lung cancer (Amsterdam, Netherlands)

Background In NSCLC, TP53 mutations are heterogeneous with varied effects on protein synthesis, function and clinical outcomes. We hypothesize that a refined classification of TP53 mutations, beyond binary categorization, could improve…

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Negative / Null Result ReportMedicine

Computed Tomography Measurement of Optic Nerve Sheath Diameter in Thrombolysis-Treated Ischemic Stroke: Association with Post-Thrombolytic Intracranial Hemorrhage.

Coşkun Yaş S, Üçöz Kocaşaban D, Güler S et al. · 2026 · Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia

Optic nerve sheath diameter (ONSD) measurement is a non-invasive marker of intracranial pressure. Its role in predicting post-thrombolytic intracranial hemorrhage in acute ischemic stroke patients remains unclear. This study aimed to…

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Negative / Null Result ReportMedicine

Survival implications of computed tomography-derived muscle mass changes in patients with epithelial ovarian cancer undergoing bowel surgery.

Kim J, Lee YY, Kim TJ et al. · 2026 · International journal of gynecological cancer : official journal of the International Gynecological Cancer Society

Objective Sarcopenia is a known adverse prognostic factor in gastrointestinal cancers undergoing bowel resection; however, its prognostic relevance in epithelial ovarian cancer remains unclear. This study aimed to evaluate the prognostic…

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Negative / Null Result ReportMedicine

Predictors and Outcomes Associated with Clinically Significant Improvements in Anxiety and Depression Symptoms Following Cardiac Rehabilitation.

Hernández L, Williamson TM, Campbell T et al. · 2025 · The Canadian journal of cardiology

Background Cardiac rehabilitation (CR) participation improves depressive and anxious symptoms post-coronary catheterization, yet it is unclear to what extent improvements are clinically significant. This study characterized the proportion…

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Negative / Null Result ReportMedicine

Water deficit induced by polyethylene glycol leads to the depletion of phenolic compounds but did not alter lignification in roots of Scots pine (Pinus sylvestris).

Ivanov YV, Kartashov AV, Ivanova AI et al. · 2026 · Functional plant biology : FPB

Global climate change is accompanied by an increase in the frequency and severity of droughts, which negatively impact plant growth. One of the protective mechanisms that allows plants to withstand the negative drought effects is the…

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Negative / Null Result ReportMedicine

Comparative effects of inactivation and dopamine receptor agents in the dorsolateral and dorsomedial striatum on performance of action sequences in rats.

Turner KM, Svegborn A, Robbins TW · 2026 · Psychopharmacology

Rationale Recent research on habits and skills has produced a wave of new theories regarding the shift in control from medial to lateral regions of the dorsal striatum, and how these regions are implicated in the selected and executed of…

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Failed Experiment ReportMedicine

The Effect of Strength Training During Chemotherapy in Women With Breast Cancer on Serum Cytokine Concentrations and Skeletal Muscle Autophagy-Related Proteins.

Strandberg E, Vikmoen O, Svindland KV et al. · 2026 · European journal of sport science

To evaluate whether strength training during chemotherapy alters (1) serum cytokines and (2) skeletal muscle autophagy- and heat-shock-related proteins in women with breast cancer. Exploratory analyses assessed associations between changes…

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Negative / Null Result ReportMedicine

Maternal rebaudioside A and acesulfame-K exposure reprograms offspring submandibular gland development in a sex-dependent manner.

Saiz-Gonzalo G, Drouin G, Rao Y et al. · 2026 · Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association

Non-nutritive sweeteners (NNS) are increasingly consumed during pregnancy, yet their distinct metabolic fates obscure a unified mechanism for developmental programming. We tested whether maternal NNS exposure acts upstream of metabolism by…

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Negative / Null Result ReportMedicine

Parental gut microbiota dysbiosis is associated with cross-generationally shared DNA methylation patterns and autism-like behaviors in offspring.

Chen B, Wang Q, Xue X et al. · 2026 · NPJ biofilms and microbiomes

Autism spectrum disorder (ASD) is a complex neurodevelopmental condition arising from interactions between genetic and environmental factors. The interplay between the microbiota-gut-brain axis and epigenetics has been implicated in ASD,…

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Negative / Null Result ReportMedicine

Maternal prenatal stress is associated with altered MRI-derived placental diffusivity in low-risk pregnancies and pregnancies with Congenital Heart Disease.

Bonthrone AF, Cromb D, Javed SA et al. · 2026 · Placenta

Objectives To assess if maternal stress is higher in pregnancies with congenital heart disease (CHD) compared to low-risk pregnancies and if maternal stress is associated with placental microstructure and function. To explore if CHD alters…

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Negative / Null Result ReportMedicine

Sweep Flow Nitric Oxide Effects on Coagulation, Inflammation, and Endothelial System Activation During Extracorporeal Membrane Oxygenation.

Mattke AC, Schlapbach LJ, Takashima M et al. · 2026 · ASAIO journal (American Society for Artificial Internal Organs : 1992)

Extracorporeal membrane oxygenation (ECMO) can trigger a systemic inflammatory response syndrome (SIRS) with activation of inflammatory, endothelial, and coagulation system pathways. We assessed in a randomized trial whether a) sweep flow…

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