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19,895 real negative results, null findings, and replication failures · Negative / Null Result Report. 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 accessNeoplasms. Tumors. Oncology. Including cancer and carcinogens

NISCAHN: a phase II trial of nivolumab in patients with salivary gland carcinoma (Unicancer ORL-08)

Christian Borel, Caroline Even, Christophe Le Tourneau et al. · 2023 · BMJ Oncology

Objective Salivary gland cancers (SGC) are rare cancers with currently no standard treatment for recurrent/metastatic disease. Based on checkpoint inhibitors benefit in a broad range of tumours, NIvolumab in Salivary gland CArcinoma of the Head and Neck (NISCAHN) evaluated nivolumab efficacy in SGC.Methods and analysis In this phase II single-stage Fleming design, patients with SGC with a progressive disease progression within 6 months prior to entering the study, were divided into ACC (adenoid cytic carcinoma) and non-ACC. All received nivolumab for a maximum of 12 months. The primary endpoin

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Negative / Null Result ReportOpen accessMicrobiology

A presumed mouse parvovirus with overlooked high toxicity for human primitive CD34+ hematopoietic precursors in vitro and in bone marrow-humanized mice

José C. Segovia, Juan C. Ramírez, Paula Río et al. · 2025 · Microbiology Spectrum

ABSTRACT Two strains of the minute virus of mice (MVM) parvovirus (of the species Protoparvovirus rodent1), named i (immunosuppressive) and p (prototype), show disparate tropism and pathogenicity in mice. Unlike the virulent MVMi, the MVMp is attenuated and infection-restricted in primary mouse hematopoietic cells; however, it does infect human transformed, established, and stem cells. We thus seek here a putative MVMp natural tropism to humans compared to MVMi. Infectious purified MVMp virions suppress in vitro the clonogenic potential of human committed (erythroid and myeloid) and primitive

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Negative / Null Result ReportOpen accessMedicine

Performance of Multiple Risk Assessment Tools to Predict Mortality for Adult Respiratory Distress Syndrome with Extracorporeal Membrane Oxygenation Therapy: An External Validation Study Based on Chinese Single-center Data

Lei Huang, Tong Li, Lei Xu et al. · 2016 · Chinese Medical Journal

Background: There has been no external validation of survival prediction models for severe adult respiratory distress syndrome (ARDS) with extracorporeal membrane oxygenation (ECMO) therapy in China. The aim of study was to compare the performance of multiple models recently developed for patients with ARDS undergoing ECMO based on Chinese single-center data. Methods: A retrospective case study was performed, including twenty-three severe ARDS patients who received ECMO from January 2009 to July 2015. The PRESERVE (Predicting death for severe ARDS on VV-ECMO), ECMOnet, Respiratory Extracorpore

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Negative / Null Result ReportOpen accessSports medicine

The Convergent Validity of the SWAY Balance Application to Assess Postural Stability in Military Cadets Recovering from Concussion

Max K Dummar, Michael S Crowell, Will Pitt et al. · 2024 · International Journal of Sports Physical Therapy

# Background Concussions are often accompanied by balance disturbances. Clinically accurate evaluation systems are often expensive, large, and inaccessible to most clinicians. The Sway Balance Mobile Application (SWAY) is an accessible method to quantify balance changes. # Purpose To determine the known groups and convergent validity of the SWAY to assess balance after a concussion. # Study Design Case-Control Study. # Methods Twenty participants with acute concussion and twenty controls were recruited. At initial, one-week, and final return to activity (RTA) evaluations, all participants comp

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Negative / Null Result ReportOpen accessNeurosciences. Biological psychiatry. Neuropsychiatry

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

Yiding XIAO, Zhujun LI, Bozhi HU 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 peripheral nerve sheath tumors. We retrospectively collected data on malignant peripheral nerve sheath tumor cases from the Surveillance, Epidemiology, and End Results database. Overall, 926 malignant peripheral nerve sheath tumor cases occurred in soft tissues, with surgical resection performed in 783 cases. After excluding cases with distant metastasis, incomplete f

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Negative / Null Result ReportOpen accessMedicine

Effectiveness of telemonitoring integrated into existing clinical services on hospital admission for exacerbation of chronic obstructive pulmonary disease: researcher blind, multicentre, randomised controlled trial

H. Pinnock, J. Hanley, L. McCloughan et al. · 2013 · British medical journal

Objective To test the effectiveness of telemonitoring integrated into existing clinical services such that intervention and control groups have access to the same clinical care. Design Researcher blind, multicentre, randomised controlled…

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Negative / Null Result ReportOpen accessMedicine

Statement on chronotherapy for the treatment of hypertension: consensus document from the Korean society of hypertension

Sungha Park, Sang-Hyun Ihm, In-Jeong Cho et al. · 2023 · Clinical Hypertension

Abstract Nocturnal blood pressure (BP) has been shown to have a significant predictive value for cardiovascular disease. In some cases, it has a superior predictive value for future cardiovascular outcomes than daytime BP. As efficacy of BP medications wanes during nighttime and early morning, control of nocturnal hypertension and morning hypertension can be difficult. As such, chronotherapy, the dosing of BP medication in the evening, has been an ongoing topic of interest in the field of hypertension. Some studies have shown that chronotherapy is effective in reducing nocturnal BP, improving

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Negative / Null Result ReportOpen accessDentistry

Bell’s Palsy: A Prospective Study

Ahmed Hassan Kamil Mustafa, Ahmed Mohammed Suleiman · 2020 · International Journal of Dentistry

Background. Bell’s palsy is an acute idiopathic facial nerve paralysis of sudden onset. It is the most common cause of lower motor neuron facial nerve paralysis with an annual incidence of 15–30 per 100,000 population. The objective of this work is to study the grade of the attack and the associated symptoms of Bell’s palsy in a group of Sudanese patients. The study type is an analytical prospective-based study. The study was carried out at Khartoum Teaching Dental Hospital, Khartoum General Teaching Hospital. In this prospective of the study, 48 patients with Bell’s palsy were evaluated using

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Negative / Null Result ReportOpen accessMedicine

The Role of Oxidative Stress in Parkinson's Disease

Vera Dias, Eunsung Junn, M. Maral Mouradian · 2013 · Journal of Parkinson’s Disease

Oxidative stress plays an important role in the degeneration of dopaminergic neurons in Parkinson's disease (PD). Disruptions in the physiologic maintenance of the redox potential in neurons interfere with several biological processes, ultimately leading to cell death. Evidence has been developed for oxidative and nitrative damage to key cellular components in the PD substantia nigra. A number of sources and mechanisms for the generation of reactive oxygen species (ROS) are recognized including the metabolism of dopamine itself, mitochondrial dysfunction, iron, neuroinflammatory cells, calcium

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Negative / Null Result ReportOpen accessMedicine

Short-term interval aerobic exercise training does not improve memory functioning in relapsing-remitting multiple sclerosis—a randomized controlled trial

Lisa Baquet, Helge Hasselmann, Stefan Patra et al. · 2018 · PeerJ

Background Only few aerobic exercise intervention trials specifically targeting cognitive functioning have been performed in multiple sclerosis. Objective and Methods This randomized controlled trial with 34 patients in the intervention group (IG) (mean: 38.2 years (±9.6)) and 34 patients in the control group (CG) (mean: 39.6 years (±9.7)) aimed to determine the effects of aerobic exercise on cognition in relapsing-remitting multiple sclerosis (RRMS). The primary outcome was verbal learning assessed by the verbal learning and memory test (VLMT). Patients were randomized to an IG or a waitlist

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Negative / Null Result ReportOpen access

The Effect of Good Government Governance on the Financial Reports Quality: The Case of Provincial Capital Governments in Indonesia

Nelly Masnila, R. Mayasari, Firmansyah Firmansyah et al. · 2021 · International Journal of Business, Management and Economics

This study aimed to determine the relationship and effect of the GGG variable on the quality of the financial reports in municipal governments in Indonesia by implementing the IIAG (The Ibrahim Index of African Governance) indicator. The…

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Negative / Null Result Report

Analisis Tingkat Kepuasan Pengguna Aplikasi Employee Self Service di PT Indofood CBP Sukses Makmur Tbk Menggunakan Metode End User Computing Satisfaction

Yoga Wahyu Pratama, Fransiska Prihatini, Orissa Octaria et al. · 2025 · Mars : Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer

The use of technology in data management has become the key to improving the efficiency and effectiveness of company performance. PT Indofood CBP Sukses Makmur Tbk has implemented a computerized employee attendance system through the…

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Negative / Null Result ReportOpen access

Effects of two massage therapy techniques on the rate of perceived exertion and performance recovery among adolescent footballers in Lagos State

Okunlola D. O, Otinwa G.O · 2024 · African Journal of Social Issues

The purpose of this research was to investigate effects of two massage therapy techniques on the rate of perceived exertion and performance recovery among adolescent footballers in Lagos state. Pre-test post-test experimental research…

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Negative / Null Result ReportMedicine

Migraine Features and Nociceptive Profile Do Not Influence Conditioned Pain Modulation in Women With Episodic and Chronic Migraine.

de-la-Llave-Rincón, Ambite-Quesada, Pacho-Hernández et al. · 2026 · Pain research & management

To determine the influence of sensitization-associated and neuropathic-like symptoms and clinical features in conditioned pain modulation (CPM) activity in women with episodic or chronic migraine. A cross-sectional study including 70 women…

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Negative / Null Result ReportMedicine

Do the printing orientation angle and layer thickness influence the radiopacity of 3D-printed dental resins?

Yersel, Ucan, Tekce · 2026 · Journal of prosthodontics : official journal of the American College of Prosthodontists

This in vitro study aimed to evaluate the effect of layer thickness, printing orientation angle, and resin type on the radiopacity of 3D-printed dental resins. Three dental 3D-printed resins (VarseoSmile TriniQ, Crowntec, and Primeprint…

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Negative / Null Result ReportOpen accessMedicine

Identifying early changes in imaging, plasma, and digital cognitive biomarkers that correspond to Alzheimer's disease pathology in the presence of autopsy-confirmed co-pathologies.

Chen CD, Aguero C, Melloni A et al. · 2026 · Alzheimer's & dementia : the journal of the Alzheimer's Association

Introduction Alzheimer's disease (AD) biomarkers are assessed on their ability to detect AD pathophysiology in vivo, with confirmation of AD neuropathology only at autopsy. Methods Positron emission tomography (PET), plasma, and cognitive…

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Negative / Null Result ReportMedicine

Expression patterns of risk genes associated with three evolutionarily relevant syndromes in rhesus macaque and human brains.

Karunakaran KB, Purushottam M, Balakrishnan N et al. · 2026 · Translational psychiatry

Depressive disorder (DD), Alzheimer's disease (AD), and schizophrenia (SZ) are evolutionarily relevant traits that disrupt neural networks supporting affect and cognition. While genome-wide association studies have identified risk-related…

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Negative / Null Result ReportMedicine

Quantification of retinal non-perfusion in eyes with diabetic retinopathy to study the association with retinal neovascularisation: INSPIRED study report 3.

Khalid H, Tsai WS, Lamanna F et al. · 2026 · The British journal of ophthalmology

Background/aims To characterise the distribution of retinal non-perfusion and its relationship with neovascularisation elsewhere (NVE) and visual acuity (VA) in referable diabetic retinopathy (DR) using ultra-widefield fluorescein…

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Negative / Null Result ReportMedicine

Measuring Cognitive Flexibility in Chinese Individuals with Obsessive-Compulsive Disorder: Psychometric Validation and Factor Structure of the Chinese Version of the Flexibility in Daily Life Scale.

Yan Z, Chen T, Ma X et al. · 2026 · Psychology research and behavior management

Purpose Impaired cognitive flexibility is a core feature of obsessive-compulsive disorder (OCD) and may contribute to symptom persistence and variabe therapeutic outcomes. However, traditional measures may adequately capture how cognitive…

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Negative / Null Result ReportMedicine

Predictable modality transitions and meaningful stimuli facilitate sequential statistical learning between sensory modalities.

Pérez-Bellido A, Duato D, Giannelli F et al. · 2026 · Journal of experimental psychology. Learning, memory, and cognition

Statistical learning is the process of extracting regularities from the environment. Although sequential cross-modal regularities are ubiquitous (e.g., the sight of a falling ball followed by the sound of impact), previous research has…

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Negative / Null Result ReportMedicine

Between hope and uncertainty: the elusive evidence on hyperbaric oxygen therapy and radiotherapy.

Cuccia F, Cracchiolo AN, Piras A et al. · 2026 · Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer

Background Radiotherapy (RT) is a cornerstone in cancer management, but late radiation tissue injury (LRTI) remains a relevant clinical issue, affecting approximately 5% of patients and significantly impacting quality of life. Hyperbaric…

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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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