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Browse the failure-mode index

12,262 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

Hypolipidemics reduce the rate of Alzheimer's disease development and dementia progression: A cohort study linked with genetic and neuropathological analyses.

Sternberg, Podolsky, Yu et al. · 2026 · The journal of prevention of Alzheimer's disease

High cholesterol contributes to the development and progression of dementia due to both Alzheimer's disease (A.D.) and vascular pathology. However, the effects of lipid-lowering regimen (LLR) on cognitive dysfunction and brain…

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Negative / Null Result ReportMedicine

Effects of sex, residential area, and age on the seasonality of insomnia-related symptoms: a detailed re-analysis of the longitudinal data of Japanese community residents.

Kizuki, Kaneko, Taniguchi et al. · 2026 · Sleep and biological rhythms

We previously found that seasonal changes in sleep duration were affected by sex, residential area, and age in Japanese community residents. This study aimed to determine whether these factors also affect the seasonality of…

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Negative / Null Result ReportMedicine

Treatment of Persisting Symptoms after Concussion with Repetitive Transcranial Magnetic Stimulation: A Double-Blinded, Randomized, Controlled Trial.

Campbell, Wilson, Du Plessis et al. · 2026 · Journal of neurotrauma

Following a mild traumatic brain injury (mTBI), up to 30% of individuals will experience persisting symptoms beyond 3 months. Repetitive transcranial magnetic stimulation (rTMS) is a noninvasive neuromodulation technique that has shown…

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Negative / Null Result ReportMedicine

Opioid Toxicity Following Concomitant Use of Macrolide Antibiotics with Fentanyl, Hydromorphone, or Oxycodone: A Population-Based Study.

Antoniou, Yang, Juurlink et al. · 2026 · Clinical pharmacology and therapeutics

Fentanyl, hydromorphone, and oxycodone are metabolized by cytochrome P450 3A4 (CYP3A4). Co-administration with CYP3A4-inhibiting macrolides (clarithromycin or erythromycin) may increase opioid concentrations and overdose risk, but the…

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Negative / Null Result ReportMedicine

Cerebellar Volumes Are Smaller in Veterans with PTSD and a History of Mild Traumatic Brain Injury, but Not Mild Traumatic Brain Injury Alone.

Huggins, Martinez, Baird et al. · 2026 · Journal of neurotrauma

Mild traumatic brain injury (mTBI), a common health burden among combat veterans, has been associated with alterations in brain structure. Moreover, post-traumatic stress disorder (PTSD), frequently comorbid with mTBI, is linked to smaller…

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Negative / Null Result ReportMedicine

Microbial-chemical synergy in the immobilization of cadmium in contaminated floodplain soils: A field-mesocosm assessment of Sporosarcina pasteurii and SiO₂ nanoparticles.

Han, Wang, Shang et al. · 2026 · Journal of hazardous materials

Cadmium (Cd) accumulation in river floodplains is threatening grain safety and agro-ecosystem sustainability. We conducted a 10-month field-mesocosm experiment to evaluate the effectiveness, side effects and underlying mechanisms of three…

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Negative / Null Result ReportMedicine

Multimodal perioperative monitoring of intracranial pressure surrogates and cerebral oxygenation during laparoscopic surgery: implications for early cognitive outcomes.

Aba O, Yalçın Sezen G, Ersoy Karka O · 2026 · BMC anesthesiology

Purpose This study aimed to evaluate perioperative changes in optic nerve sheath diameter (ONSD) and regional cerebral oxygen saturation (rSO₂) using noninvasive monitoring techniques during laparoscopic abdominal surgery, and to assess…

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Negative / Null Result ReportMedicine

Association of Air Pollution Exposure with Incident Cataract Surgery and Neovascular Age-Related Macular Degeneration in 2 French Nationwide Cohorts.

Gayraud, Lequy, Hucteau et al. · 2026 · Ophthalmology science

Age-related macular degeneration (AMD) and cataracts are part of the leading causes of blindness globally, with oxidative stress being a key factor in their development. Air pollution, known to exacerbate oxidative stress, may contribute…

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