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Browse the failure-mode index

12,380 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

Does antimicrobial use during pregnancy impact excess weight in early childhood? Findings from the 2015 Pelotas (Brazil) Birth Cohort Study.

Bertoldi AD, Flores TR, Silveira MPT et al. · 2026 · Ciencia & saude coletiva

This study aimed to investigate the association between the use of antimicrobials during pregnancy and excess weight in children at ages three, 12, 24 and 48 months. Data of participants from the 2015 Pelotas (Brazil) Birth Cohort study…

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Negative / Null Result ReportOpen accessMedicine

Complications Following Aseptic Knee Revision Based on Tourniquet Use.

Pater WJ, Buller LT, Ziemba-Davis M et al. · 2026 · Arthroplasty today

Background Tourniquet use in revision total knee arthroplasty (rTKA) enhances visualization and improves cement penetration. However, concerns exist about muscle injury, pain, wound complications, and venous thromboembolism (VTE). This…

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Replication FailureOpen accessMedicine

Effects of Metformin on Cancer Survival Among Men Diagnosed with Advanced Prostate Cancer Treated with Androgen-Deprivation Therapy: Emulating a Target Trial.

Lopez DS, Polychronopoulou E, Abdelgadir O et al. · 2025 · Cancers

Background/Objectives: Metformin is one of the most frequently used concomitant medications among prostate cancer (PCa) patients. However, the effects of metformin on all-cause and PCa-specific mortality among men diagnosed with…

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Negative / Null Result ReportMedicine

Cash transfers and mental health in Egypt.

El-Enbaby H, Hollingsworth B, Maystadt JF et al. · 2024 · Economics and human biology

The relationship between poverty and mental health is complex. Conditional cash transfers are seen as an important policy tool in reducing poverty and fostering social protection. Evidence on the impact of cash transfers on mental health…

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Negative / Null Result ReportOpen accessMedicine

Exploring the impact of a medication adherence intervention on recovery and mental health outcomes: A secondary analysis of the MAT-PLUS pilot RCT.

Wenzel K, Thomas J, Carrano J et al. · 2025 · Drug and alcohol dependence reports

Substance use disorders (SUDs) including opioid use disorder (OUD) and alcohol use disorder (AUD) contribute to significant morbidity and mortality in the United States. Pharmacotherapy treatment, including extended-release naltrexone…

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Negative / Null Result ReportOpen accessMedicine

Neonatal vitamin D status and asthma risk after age 5 years: A Danish population-based cohort study.

Liu X, Zhu Z, Chawes B et al. · 2026 · Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology

Background Vitamin D may play a role in early lung development, yet epidemiologic evidence on its association with later asthma risk is mixed. We aimed to investigate the associations of neonatal 25-hydroxyvitamin D (25(OH)D) and vitamin…

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Negative / Null Result ReportOpen accessMedicine

Can we refute a role for infections in Alzheimer's disease pathogenesis?

Chatila ZK, Duggan MR, Silberberg E et al. · 2026 · Alzheimer's & dementia : the journal of the Alzheimer's Association

While a growing body of literature suggests a role for infections in Alzheimer's disease (AD), microbial contributions to AD remains a contentious topic, in part due to challenges in reconciling the positive evidence with studies reporting…

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Negative / Null Result ReportMedicine

Cross-sectional associations between lifecourse dementia risk factors, plasma neurodegenerative biomarkers, and cognition in older adults in India.

Gao S, Gross AL, Aksman LM et al. · 2026 · Journal of Alzheimer's disease : JAD

BackgroundPlasma neurodegenerative biomarkers are a potential low-cost tool for studying Alzheimer's disease and dementia in population-based research, especially in low- and middle-income countries. However, their associations with…

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Negative / Null Result ReportOpen accessMedicine

Differences in surgical site infection rates by state according to state-mandated operating room air changes per hour.

Atkinson A, Marschall J, Burnham JP · 2025 · Antimicrobial resistance and infection control

Background Air changes per hour (ACH) in operating rooms (ORs) are energy intensive, and optimal air change settings are not known. Objectives We sought to explore whether there is a relationship between surgical site infections (SSIs)…

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Negative / Null Result ReportMedicine

Effects of docosahexaenoic acid supplementation on aggressive behavior among people with dementia: Secondary data analysis of a randomized clinical trial.

Perales-Puchalt J, Yang FM, Townley R · 2025 · Alzheimer disease and associated disorders

We tested the efficacy of docosahexaenoic acid (DHA) supplementation on aggressive behavior among people with dementia. We used secondary data from a randomized, double-blind, placebo-controlled trial. Analyses included 402 individuals…

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Negative / Null Result ReportOpen accessMedicine

Beta-blocker use and all-cause mortality in myocardial infarction survivors: A retrospective cohort study using propensity score methods in NHANES 1999 to 2018.

Sheng Y, Han Y, Xue Y · 2026 · Medicine

Beta-blockers are recommended for post-myocardial infarction (MI) care, but their long-term impact on all-cause mortality in real-world settings remains unclear. This study investigates the association using propensity score methods in a…

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Negative / Null Result ReportOpen accessMedicine

Exploring human-artificial intelligence interactions in a negative pragmatic trial of computer-aided polyp detection.

Watkins K, Ladabaum U, Olsen E et al. · 2024 · iGIE : innovation, investigation and insights

Background and aims The progress of artificial intelligence (AI) in endoscopy is at a crossroads. The positive results of randomized controlled trials of computer-aided detection (CADe) have not been replicated in multiple pragmatic CADe…

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Negative / Null Result ReportOpen accessMedicine

Lifting the veil: probing altered visual perception in derealization.

Kusztor A, Mulay N, Yamada M et al. · 2025 · Neuroscience of consciousness

During an acute episode of depersonalization/derealization (DP/DR), people report a complex and idiosyncratic change in their perceptual experience. Specifically, derealisation describes the experience of detachment from the external world…

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Negative / Null Result ReportMedicine

Peptides and primate personality: Central and peripheral oxytocin and vasopressin levels and social behavior in two baboon species (Papio hamadryas and Papio anubis).

Coppeto DJ, Martin JS, Ringen EJ et al. · 2024 · Peptides

The neurohormones oxytocin (OT) and arginine vasopressin (AVP) are involved in social behaviors and psychiatric conditions. However, more research on nonhuman primates with complex social behaviors is needed. We studied two closely-related…

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Negative / Null Result ReportOpen accessMedicine

Mendelian randomization analysis reveals no causal association between non-alcoholic fatty liver disease and hepatocellular carcinoma: implications for lipid metabolomics and shared pathophysiological mechanisms.

Wei Y, Li J · 2025 · Discover oncology

Background Non-alcoholic fatty liver disease (NAFLD) has been increasingly associated with hepatocellular carcinoma (HCC) risk in observational studies, yet the causal nature of this relationship and its impact on systemic lipid metabolism…

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