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Browse the failure-mode index

12,263 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.

Failed Experiment ReportMedicine

Early antifungal prophylaxis fails to prevent influenza-associated pulmonary aspergillosis in the ICU: a target trial emulation.

Li P, Xu S, Chen C et al. · 2026 · Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases

Objectives To evaluate whether early antifungal prophylaxis reduces the incidence of influenza-associated pulmonary aspergillosis (IAPA) in critically ill adults with influenza. Methods We emulated a target trial using a multicentre cohort…

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Negative / Null Result ReportOpen accessMedicine

THE EFFECT OF USE OF DIFFERENT DOSES OF URSODEOXYCOLIC ACID ON GALLSTONE FORMATION AFTER SLEEVE GASTRECTOMY

Mehmet Mahir Fersahoğlu, Ahmet Çakmak, Hüseyin Çiyiltepe et al. · 2022 · İstanbul Tıp Fakültesi Dergisi

Objective: To evaluate the effects of using different doses of ursodeoxycholic acid (UDCA) for six months in prevention of gallstones after Laparoscopic Sleeve Gastrectomy (LSG) on the formation of gallstones in the 6th and 12th months. Materials and Methods: The data of patients who underwent LSG for morbid obesity were analyzed. Three groups of 20 people were formed. These were the control group, Group I who were treated with UCDA 500 mg/day for six months after LSG, and Group II who were treated with UCDA 1000 mg/day for 6 months after LSG. Demographic characteristics, co-morbid diseases, c

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Negative / Null Result ReportOpen accessMedicine

Analysis of the applied technique of intravenous anesthesia for in vitro fertilization in obese and patients with normal body mass index

Videnović Nebojša, Mladenović Jovan, Pavlović Aleksandar et al. · 2019 · Srpski Arhiv za Celokupno Lekarstvo

Introduction/Objective. In this study, the effects of applied anesthetic techniques were investigated in a retrospective analysis of obese patients and those with normal body mass index undergoing in vitro fertilization, using bispectral index as an indicator of anesthetic depth. Methods. In total 116 patients with normal body mass index were allocated to group N. Another 116 patients with body mass index > 30 kg/m2 were allocated to group O. Anesthetic protocol comprised midazolam for premedication, diclofenac for pre-emptive analgesia, propofol for induction and maintenance, alfentanil for a

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Negative / Null Result ReportOpen accessMedicine

Differentiation of Brain Tumor Recurrence from Post-Radiotherapy Necrosis with 11C-Methionine PET: Visual Assessment versus Quantitative Assessment.

Ryogo Minamimoto, Toshiyuki Saginoya, Chisato Kondo et al. · 2015 · PLoS ONE

The aim of this multi-center study was to assess the diagnostic capability of visual assessment in L-methyl-11C-methionine positron emission tomography (MET-PET) for differentiating a recurrent brain tumor from radiation-induced necrosis after radiotherapy, and to compare it to the accuracy of quantitative analysis.A total of 73 brain lesions (glioma: 31, brain metastasis: 42) in 70 patients who underwent MET-PET were included in this study. Visual analysis was performed by comparison of MET uptake in the brain lesion with MET uptake in one of four regions (around the lesion, contralateral fro

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Negative / Null Result ReportOpen accessMedicine

Computed Tomography Evaluation of Canal Transportation and Volumetric Changes in Root Canal Dentin of Curved Canals Using Mtwo, ProTaper and ProTaper Next Rotary System-An In-vitro Study

Mayuri Biccodu Shivashankar, Nandini Thippannanavar Niranjan, Arun Jayasheel et al. · 2016 · Journal of Clinical and Diagnostic Research

Introduction: Complete cleaning and shaping of root canal system is of paramount importance to achieve a successful root canal treatment. There are various rotary Ni-Ti systems available in the market to achieve mechanical goal of root canal preparation. But aggressive preparation of root canal with such systems would result in canal transportation and excess root dentin removal that would be one of the major reasons to decide the prognosis of root canal treated tooth. Aim: The present study was conducted to compare the root canal preparation in terms of canal transportation and volumetric cha

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Negative / Null Result ReportOpen accessMedicine

Analysis of polymorphisms, promoter methylation, and mRNA expression profile of maternal and placental P53 and P21 genes in preeclamptic and normotensive pregnant women

Mahdiyeh Harati-Sadegh, Leila Kohan, Batool Teimoori et al. · 2019 · Journal of Biomedical Science

Abstract Background Preeclampsia (PE), as a multisystem disorder, is associated with maternal hypertension and proteinuria. Apoptosis seems to be involved in the pathophysiology of PE, although its precise pathogenic mechanisms are not well established. In this study, we aimed to identify the association between maternal TP53-rs1042522, P21-rs1801270, and P21-rs1059234 polymorphisms and PE. In addition, we examined the effects of promoter methylation and TP53 and P21 polymorphisms on placental mRNA expression in PE women. Methods The blood of 226 PE women and 228 normotensive pregnant women wa

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Negative / Null Result ReportOpen accessMedicine

Effect of secukinumab dose escalation on MRI-detected inflammation and structural damage in axial spondyloarthritis: a clinical, investigator-initiated, treat-to-target study (TRACE)

Oliver Hendricks, Mikkel Østergaard, Susanne Juhl Pedersen et al. · 2026 · RMD Open

Introduction Evidence of treat-to-target strategies including secukinumab dose escalation in patients with axial spondyloarthritis (axSpA) remains limited. We investigated the effect of a treat-to-target approach aiming for Axial Spondyloarthritis Disease Activity Score (ASDAS) remission, assessed by clinical and MRI outcomes over 24 weeks.Methods TRACE was a multicentre study including biologic-naïve patients with active axSpA. Sixteen weeks after secukinumab 150 mg initiation, patients in ASDAS remission (<1.3)(week 16 remitters) continued the same dose, while non-remitters (week 16 non-remi

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Negative / Null Result ReportOpen accessMedicine

Analysis of the correlation between thyroid hormones and thyroid volume by gender: A volumetric computed tomography study

Serkan Oner, Yusuf Secgin, Zulal Oner et al. · 2022 · Medicine Science

The aim of this study was to evaluate the correlation between triiodothyronine (T3), thyroxine (T4), and thyroid-stimulating hormone (TSH) hormones and thyroid gland volume with volumetric analysis performed by using computed tomography (CT) images. In this retrospective study, IV contrasted thoracic CT images taken for different indications between 2019 January and 2020 January were scanned from the archive system of the hospital. 67 (31F, 36M) individuals chosen randomly among patients whose CT results were reported as normal and who had taken thyroid hormone tests within the past week were

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Negative / Null Result ReportOpen accessMedicine

Left ventricular myocardial deformation assessment in asymptomatic patients with recently diagnosed sarcoidosis of the respiratory tract and/or extrapulmonary sarcoidosis

Roman Panovský, Martina Doubková, Mary Luz Mojica-Pisciotti et al. · 2021 · Orphanet Journal of Rare Diseases

Abstract Background Sarcoidosis is a systemic granulomatous disease affecting different organs including the heart. Myocardial strain analysis could potentially detect the early stages of cardiac dysfunction in sarcoidosis patients. The present study aims to assess the use of cardiac magnetic resonance (CMR) strain analysis using feature tracking (FT) in the detection of early cardiac involvement in asymptomatic patients with sarcoidosis. Methods One hundred and thirteen CMR studies of patients with sarcoidosis of the respiratory tract and/or extrapulmonary sarcoidosis without pre-existing kno

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Negative / Null Result ReportOpen accessMedicine

Comparative Evaluation of Buffy Coat-Derived and Apheresis Platelet-Rich Plasma in the Treatment of Androgenetic Alopecia: Laboratory and Clinical Insights.

Huang C, Wu M, Li Y et al. · 2026 · Clinical, cosmetic and investigational dermatology

Background Androgenetic alopecia (AGA) is the most common type of hair loss, and platelet-rich plasma (PRP) has emerged as a promising therapy. However, preparation methods may influence clinical outcomes. Objective To compare buffy coat…

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Negative / Null Result ReportOpen accessMedicine

Enhancing Port Performance through Digital Transformation: The Role of Networking Capability and Organizational transformation in Indonesian Container Ports.

Pramitra B, Al Musadieq M, Afrianty TW et al. · 2026 · F1000Research

Although digital transformation in port management has been widely discussed, previous studies have not extensively examined how organizational capabilities translate into performance through digital adoption at ports. This study addresses…

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Negative / Null Result ReportMedicine

Investigating farmers' preferences for rapeseed sales contracts in Iran.

Mehrabi A, Mohamadi-Nejad A, Ghorbani M et al. · 2026 · Brazilian journal of biology = Revista brasleira de biologia

Contract farming has gained popularity in recent years. Understanding farmers' preferences for contracts can help make contracts more sustainable and profitable. Therefore, the present study aimed to investigate farmers' preferences for…

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Negative / Null Result ReportMedicine

A comparison of the effects of cognitive rehabilitation and binaural beats on creativity, psychological well-being, and academic performance in university students.

Bayrami M, Dadashi Mazraeh S · 2026 · Acta psychologica

This study compared the effects of cognitive rehabilitation and binaural beats on creativity, psychological well-being, and academic performance in 45 undergraduate students using a quasi-experimental pretest-posttest design with a control…

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Negative / Null Result ReportOpen accessMedicine

Interventions that support women, girls, and people who menstruate to participate in physical activity: a rapid overview of reviews.

Csontos J, Brown N, Edwards A et al. · 2026 · BMC public health

BACKGROUND: Adults (age 18–64 years) are recommended 150–300 min of moderate-to-vigorous or 75–150 min of vigorous-intensity physical activity per week. Irrespective, the number of women not meeting recommended physical activity is 5%…

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Negative / Null Result ReportOpen accessMedicine

Recovery and Return to Sport in Pediatric Osteochondral Defects of the Knee: Evaluating the Influence of Lesion Size.

Corcoran E, Samuel Z, Force A et al. · 2026 · Orthopaedic journal of sports medicine

Background Osteochondral defects (OCDe) of the knee in pediatric patients can significantly impact long-term joint function. This study aimed to evaluate the impact of lesion size on patient characteristics, treatment decisions, and…

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Negative / Null Result ReportOpen accessMedicine

Examining the Impact of Trial Length on Detecting Medication Effects for Alcohol Use Disorder: A Meta-Regression Study.

Belnap MA, Witkiewitz K, Schacht JP et al. · 2026 · Alcohol, clinical & experimental research

Background The U.S. Food and Drug Administration (FDA) recommends a minimum duration of 6 months for randomized controlled trials (RCTs) evaluating pharmacotherapies for alcohol use disorder (AUD). The relationship between trial length and…

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Negative / Null Result ReportOpen accessMedicine

The ameliorative effects of <i>Myrmecodia</i> sp. as an antibiotic growth promoter in broiler chicken with avian pathogenic <i>Escherichia coli</i> infection.

Lisnanti EF, Lokapirnasari WP, Al-Arif MA et al. · 2025 · Open veterinary journal

Background Broiler livestock supports the fulfillment of animal protein in a country where the meat price is affordable for the wider population. However, its progress faces numerous challenges, with colibacillosis, induced by APEC, being…

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Negative / Null Result ReportOpen accessMedicine

Acute Creatine Ingestion Before Resistance Training Enhances Strength Performance More than Ingestion During or After Training: A Randomized Crossover Pilot Trial.

Ben Maaoui K, Delleli S, Jebabli A et al. · 2026 · Nutrients

Background/Objectives : Although creatine (Cr) supplementation is well established for enhancing strength exercise adaptations, limited evidence exists regarding whether the timing of a single Cr dose relative to exercise acutely…

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Negative / Null Result ReportMedicine

Altermagnetic and Dipolar Splitting of Magnons in FeF_{2}.

Sears J, Garlea VO, Lederman D et al. · 2026 · Physical review letters

FeF_{2} is a prototypical rutile antiferromagnet recently proposed as an altermagnet, with a magnetic symmetry that permits spin-split electronic bands and chiral magnons. Using very-high-resolution inelastic neutron scattering on a single…

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Negative / Null Result ReportMedicine

The mediating role of job performance and satisfaction in the effect of digital leadership on heavy workload among healthcare workers.

Sağbaş M, Oktaysoy O, Topcuoglu E · 2026 · Journal of health organization and management

Purpose This study aims to investigate the mediating roles of job performance and job satisfaction in the effect of digital leadership on heavy workloads among healthcare workers. By focusing on the phenomenon of leadership in digital…

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