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Browse the failure-mode index

12,244 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

Lack of effect of cyclic adenosine monophosphate modulation during prematuration in vitro on development to the blastocyst stage and expression of specific genes associated with lineage commitment.

Desenzi R, Cuellar CJ, Hoorn QA et al. · 2025 · JDS communications

Pharmacological elevation of cyclic AMP (cAMP) of cultured cumulus-oocyte complexes (COC) before or coincident with initiation of maturation has been reported to improve outcomes for various systems for in vitro production of embryos. Here…

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Negative / Null Result ReportOpen accessMedicine

Assessing the Impact of PCSK9 and HMGCR Inhibition on Liver Function: Drug-Target Mendelian Randomization Analyses in Four Ancestries.

Rosoff DB, Bell AS, Wagner J et al. · 2024 · Cellular and molecular gastroenterology and hepatology

Background & aims Observational studies have linked lipid-lowering drug targets pro-protein convertase subtilisin/kexin 9 (PCSK9) and HMG-CoA reductase (HMGCR) with adverse liver outcomes; however, liver disease incidence varies across…

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Negative / Null Result ReportOpen accessMedicine

Establishing validity and measurement invariance of the Claremont Purpose Scale among adolescents from diverse racial-ethnic backgrounds.

Xie H, Ratner K, Estevez M et al. · 2026 · Journal of research on adolescence : the official journal of the Society for Research on Adolescence

The Claremont Purpose Scale (CPS) was designed to assess youth purpose, but the English version has not yet undergone rigorous psychometric evaluation among adolescents. Prior validation efforts have also mostly relied on white-majority…

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Failed Experiment ReportOpen accessMedicine

Evidence for a reactionary account of retrieval state initiation.

Han S, Long NM · 2025 · Imaging neuroscience (Cambridge, Mass.)

Engagement of the retrieval state (or mode) is theorized to be a precursor to successful retrieval, but precisely when the retrieval state is engaged is unclear. Our aim in the present study is to determine the time course of retrieval…

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Failed Experiment ReportOpen accessMedicine

Profile of immune response during nasal challenge with dermatophagoides pteronyssinus in subjects with allergic airway diseases.

Tamasauskiene L, Gradauskiene B · 2024 · Journal of inflammation (London, England)

Background T lymphocyte helper (Th) 2 plays the main role in pathogenesis of allergic airway diseases (AAD). Recent studies showed that interleukin (IL) 33, Th17 and Th22 also may be involved in allergic inflammation. The aim is to…

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Negative / Null Result ReportMedicine

Yield of Sleep Deprivation EEG in Suspected Epilepsy. A Retrospective Study.

Guerrero-Aranda A, Enríquez-Zaragoza A, López-Jiménez K et al. · 2024 · Clinical EEG and neuroscience

Background. Sleep is an activation procedure and is considered the most potent and best-documented modulator of seizures and interictal epileptiform discharges (IEDs) on electroencephalogram (EEG). The precise role of sleep deprivation in…

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Negative / Null Result ReportMedicine

Comparisons of extinction, counterconditioning, and novelty-facilitated extinction within ABA vs. ABC renewal designs.

Jozefowiez J, Huff AG, Petruzzo L et al. · 2026 · Journal of experimental psychology. Animal learning and cognition

The expression of an association between a conditioned stimulus (CS) and an aversive unconditioned stimulus (US) can be weakened by presenting the CS by itself (extinction [Ext]), pairing it with an appetitive US (counterconditioning…

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Negative / Null Result ReportMedicine

Perioperative N-acetylcysteine: evidence and indications.

Wilson PR, Bridges KH, Scofield M et al. · 2024 · Pain management

Nonopioid analgesics serve to improve analgesia and limit side effects and risks of perioperative opioids. N-acetylcysteine (NAC), the primary treatment of acetaminophen toxicity, may have perioperative indications, including analgesia.…

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Negative / Null Result ReportMedicine

Newborn Auditory Brainstem Response and Sudden Infant Death Syndrome.

Maylott SE, Zeng G, Leung TS et al. · 2025 · Journal of neuroscience research

Sudden infant death syndrome (SIDS)-the sudden and unexplained death of a seemingly healthy infant, < 1 year old-may be associated with abnormalities in the brain regions that underlie breathing and arousal during sleep. While post-mortem…

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Negative / Null Result ReportOpen accessMedicine

Shedding light on public perceptions of scientists who engage in wrongness admission amidst a failed replication.

Evans ND, Fetterman AK · 2026 · Public understanding of science (Bristol, England)

Admitting that one's research findings are wrong involves admitting a potential instance of incompetence, which can keep scientists from engaging in wrongness admission. However, wrongness admission can yield favorable perceptions. In five…

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