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Browse the failure-mode index

21,314 real negative results, null findings, and replication failures. 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

A Review of Trials for Unsuccessful Pediatric Drug Development Programs Submitted to the US Food and Drug Administration 2015-2022.

Samuels S, Seaton M, Abdel-Rahman SM et al. · 2026 · Therapeutic innovation & regulatory science

Background Legislative initiatives have spurred an increase in pediatric drug development programs. However, some drug products studied in the pediatric population have not received an approved pediatric indication, and efforts have been…

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Negative / Null Result ReportOpen accessMedicine

Computer-navigated versus conventional total knee arthroplasty: no difference in implant survival at 15-year follow-up.

Longo G, Pacchiarotti G, Pizzigallo C et al. · 2026 · Journal of orthopaedic surgery and research

Introduction The introduction of computer-assisted navigation (CAS) in total knee arthroplasty (TKA) aimed to improve prosthetic alignment and potentially enhance long-term implant survival. However, the actual clinical benefit beyond 10…

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Negative / Null Result ReportMedicine

Assessment of intraoperative high frequency variability index as a predictor of postoperative pain after open liver or pancreatic surgery under combined general and epidural anesthesia: a prospective observational study.

Yoshida K, Hakozaki T, Hasegawa T et al. · 2025 · Journal of clinical monitoring and computing

The aim of the present study was to investigate the utility of the intraoperative high frequency variability index (HFVI) / Analgesia Nociception Index (ANI) for predicting postoperative pain in patients undergoing open liver or pancreatic…

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Replication FailureOpen accessMedicine

Radiotherapy Offered Limited Additional Benefits on Cancer-specific Survival for Patients with Resectable Subcutaneous Malignant Peripheral Nerve Sheath Tumors: A Population-based Retrospective Cohort Analysis.

Xiao Y, Li Z, Hu B et al. · 2025 · Neurologia medico-chirurgica

For resectable malignant peripheral nerve sheath tumors, the additional benefits of radiotherapy remain controversial. This study aims to investigate whether there is an additional benefit of radiotherapy for resectable malignant…

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Replication FailureOpen accessMedicine

When anticoagulant therapy is not enough: recurrent stroke.

Stazi F · 2026 · European heart journal supplements : journal of the European Society of Cardiology

Despite the use of oral anticoagulants, the residual risk of recurrent ischaemic stroke in patients with atrial fibrillation (AF) is ∼4% per year; however, in patients who experience a stroke despite oral anticoagulant therapy (OAT), this…

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Negative / Null Result ReportOpen accessMedicine

Most autophagic cell death studies lack evidence of causality.

Özkaya AB, Ghaseminejad Y · 2025 · FEBS open bio

Autophagy plays a critical role in maintaining cellular homeostasis and is implicated in various physiological and pathological processes, including cancer, neurodegeneration, and metabolic disorders. Although typically associated with…

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Negative / Null Result ReportOpen accessMedicine

Overall survival following treatment of central nervous system meningeal melanocytomas: Insights from the national cancer database (NCDB).

El-Hajj VG, El Choueiri J, Vasella F et al. · 2026 · Brain & spine

Introduction Central nervous system (CNS) melanocytomas are rare, pigmented tumors derived from leptomeningeal melanocytes. Although generally benign, they can exhibit locally aggressive behavior and recur. Despite increasing recognition,…

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Replication FailureOpen accessMedicine

Time To Inject Some Contrast into the Nephrotoxicity Debate.

Florens N, Demiselle J · 2026 · Kidney360

Iodinated contrast media have long been feared for causing contrast-induced AKI (CI-AKI), a concern rooted in early reports with high-osmolar agents. Experimental data suggest potential nephrotoxic mechanisms, yet clinical evidence from…

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Failed Experiment ReportMedicine

Role of Colchicine in Reducing Reperfusion Injury in STEMI Patients Who Undergo Primary Percutaneous Coronary Intervention: A Randomized Clinical Trial.

Karim B, Alwi I, Yamin M et al. · 2025 · Acta medica Indonesiana

Background Inflammation plays a role in ST-segment elevation myocardial infarction (STEMI), especially in reperfusion injury (RI). Colchicine, an anti-inflammatory drug, can suppress inflammation during RI. We assessed the effectiveness of…

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Failed Experiment ReportOpen accessMedicine

Clotted Apheresis Hematopoietic Stem Cell Product.

Zhuang L, Woo J, Francisco F et al. · 2024 · Journal of clinical apheresis

The majority of the time hematopoietic progenitor cells (HPC) are collected through leukapheresis, where anticoagulants are necessary to prevent clotting of the apheresis circuit and HPC product. Although clotting of the product is a…

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Negative / Null Result ReportOpen accessMedicine

Impact of an Anti-infection Double Lumen Bundle on the incidence of central venous catheter-related infections in haematological patients: a retrospective cohort study.

Lazarevic Lindblad M, Pålsson E, Lazarevic V et al. · 2026 · Infection prevention in practice

Background Central venous catheters (CVCs) are commonly used in patients with haematological diseases but are associated with infectious complications. The CVC Anti-infection Double Lumen Bundle was introduced in December 2020 to reduce…

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Negative / Null Result ReportOpen accessMedicine

Efficacy and Safety of Pregabalin for Restless Legs Syndrome in Korean Adults: A Randomized, Double-Blind, Placebo-Controlled Trial.

Sunwoo JS, Cho YW, Shin WC et al. · 2025 · Journal of clinical neurology (Seoul, Korea)

Background and purpose To evaluate the clinical efficacy and safety of pregabalin in Korean adults with restless legs syndrome (RLS). Methods In this randomized, multicenter, double-blind, placebo-controlled trial, 78 patients with RLS…

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Abandoned HypothesisOpen accessMedicine

Association of the TGF-beta1 polymorphism with primary open-angle glaucoma: a case-control study.

Derakhshan A, Zia MJ, Tavakkol Afshari J et al. · 2026 · Medical hypothesis, discovery & innovation ophthalmology journal

Background Primary open-angle glaucoma (POAG) is characterized by increased resistance to aqueous humor outflow. Transforming growth factor beta-1 (TGF-beta1) contributes to this resistance by promoting synthesis and remodeling of the…

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Negative / Null Result ReportMedicine

Knowledge, attitude, and practice on clear aligner therapy in mixed dentition among pediatric dentists of India: A cross-sectional survey.

Soral S, Bargale S, Dave B et al. · 2026 · Journal of the Indian Society of Pedodontics and Preventive Dentistry

Background Orthodontic treatment has long been associated with visible wires in the mouth. Clear aligners, once limited to mild crowding/spacing, are now supported for correcting more complex malocclusions. While Clear Aligner Therapy…

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Negative / Null Result ReportMedicine

Real-World Evidence: Cefiderocol Therapeutic Drug Monitoring in Critically Ill, Obese Patients with <i>Klebsiella pneumoniae</i> Infections.

Manca A, Palermiti A, Corcione S et al. · 2026 · Antibiotics (Basel, Switzerland)

Background/Objectives: Cefiderocol (FDC) is a siderophore-containing cephalosporin that retains activity against many β-lactamase-producing bacteria, such as New Delhi metallo-β-latamase-producing (NDM) K. pneumoniae . Its use in…

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Negative / Null Result ReportOpen accessOils, fats, and waxes

制油工艺对油茶籽油生物活性成分含量 和抗氧化活性的影响Effect of oil production process on the biologically active ingredients and antioxidant activity of oil-tea camellia seed oil

刘芳1,吴苏喜1,2,蒋明芳1,谭传波3,李普选2LIU Fang1, WU Suxi1,2, JIANG Mingfang1, TAN Chuanbo3, LI Puxuan2 · 2022 · Zhongguo youzhi

为了了解不同制油工艺对油茶籽油生物活性成分含量和抗氧化活性的影响,以油茶果为原料,采取鲜榨法、浸提法、新水法、冷榨法和热榨法5种制油工艺分别制取油茶籽油,研究对比了5种制油工艺的提油率,所制取的油茶籽油的脂肪酸组成、生物活性成分(生育酚、角鲨烯及多酚)含量及其对DPPH自由基和ABTS自由基的清除能力。结果表明,5种制油工艺的提油率均在73%以上,其中浸提法((96.45±3.02)%)最高,冷榨法((73.72±2.76)%)最低,鲜榨法((82.36±224)%)、新水法((81.91±3.21)%)和热榨法((80.34±2.09)%)没有显著差异;5种工艺所制取的油茶籽油具有相似的脂肪酸组成;在α-生育酚和总生育酚含量方面,新水法制取的油茶籽油含量最高(α-生育酚含量(263.77±1.58)mg/kg,总生育酚含量(280.55±1.64)mg/kg),鲜榨法、冷榨法和热榨法制取的油茶籽油中总生育酚含量接近,在233~244 mg/kg之间,浸提法制取的油茶籽油中总生育酚含量只有(17.10±0.76)mg/kg;在角鲨烯和多酚含量方面,鲜榨法制取的油茶籽油明显高于其他工艺的,分别为(350.56±7.60)mg/kg和(45.04±4.50)mg/kg,新水法制取的油茶籽油角鲨烯含量最低,为(249.99±3.73)mg/kg,浸提法制取的油茶籽油多酚含量最低,为(7

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Negative / Null Result ReportOpen accessBiology (General)

Biochemical evaluation of mutant genotypes of Sesamum indicum for the development of improved varieties

Muhammad Abba Isah Audu, Yusuf Idris, Muhammad Liman Muhammad et al. · 2022 · Botanica

The nutritional attributes of sesame, Sesamum indicum, vary substantially and are primarily influenced by the plant’s genetic makeup. This investigation accessed the biochemical composition of sesame mutants from two generations. Seeds of eleven M3 lines were planted in a Randomized Complete Block Design (RCBD) to raise M4 lines, which were advanced to M5 generation. The seeds were harvested at maturity, and their biochemical compositions were quantitatively determined following standard procedures. Results revealed significant differences (p 0.05) was observed in ash content of M4 and M5 muta

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