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11,309 real negative results, null findings, and replication failures in Medicine · 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 ReportMedicine

Effect of Warfarin on Survival in Patients with Concomitant Left Ventricular Systolic Dysfunction and Pulmonary Hypertension: A Population Cohort Study

Andrew Goudie, Douglas H.J. Elder, Harshal Deshmukh et al. · 2014 · European Journal of Heart Failure

BACKGROUND: The use of oral anticoagulation in patients with heart failure in sinus rhythm remains controversial as previous large randomized controlled trials (RCTs) have not shown a survival benefit. However, heterogeneity exists among…

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Negative / Null Result ReportOpen accessMedicine

Effectiveness of early awake self proning strategy in non-intubated patients with COVID-19 hypoxemia: An open-labelled randomized clinical trial from Jodhpur, India

Maya Gopalakrishnan, Satyendra Khichar, Suman Saurabh et al. · 2022 · Monaldi Archives for Chest Disease

Awake self-proning is being used widely as respiratory support in COVID-19 hypoxemia, in resource-limited settings. We aimed to investigate the effectiveness of early awake self-proning in preventing mortality and the need for intubation…

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Negative / Null Result ReportMedicine

First-line immune checkpoint inhibitors alone or in combination with chemotherapy in real-life elderly patients with advanced non-small cell lung cancer (NEJ057).

Mao Uematsu, Yoko Tsukita, Takehiro Tozuka et al. · 2023 · Journal of Clinical Oncology

9012 Background: Immune checkpoint inhibitor (ICI) plus chemotherapy is now a standard treatment for non-small cell lung cancer (NSCLC) without targetable oncogene alternations. However, the efficacy and safety of ICI plus chemotherapy…

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Negative / Null Result ReportOpen accessMedicine

Effects of Acyclovir and IVIG on Behavioral Outcomes after HSV1 CNS Infection

Chandran Ramakrishna, Mari S. Golub, Abby J. Chiang et al. · 2017 · Behavioural Neurology

Herpes simplex virus 1 (HSV) encephalitis (HSE) has serious neurological complications, involving behavioral and cognitive impairments that cause significant morbidity and a reduced quality of life. We showed that HSE results from dysregulated central nervous system (CNS) inflammatory responses. We hypothesized that CNS inflammation is casually involved in behavioral abnormalities after HSE and that treatment with ACV and pooled human immunoglobulin (IVIG), an immunomodulatory drug, would improve outcomes compared to mice treated with phosphate buffered saline (PBS) or ACV alone. Anxiety level

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Negative / Null Result ReportOpen accessMedicine

Balancing Potential Benefits and Risks of Bruton Tyrosine Kinase Inhibitor Therapies in Multiple Sclerosis During the COVID-19 Pandemic

Martin S. Weber, Jacqueline Nicholas, Michael R. Yeaman · 2021 · Neurology Neuroimmunology & Neuroinflammation

Bruton tyrosine kinase inhibitors (BTKis) encompass a new class of therapeutics currently being evaluated for the treatment of multiple sclerosis (MS). Whether BTKis affect COVID-19 risk or severity or reduce vaccine efficacy are important…

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Negative / Null Result ReportOpen accessMedicine

Low EGFR/MET ratio is associated with resistance to EGFR inhibitors in non-small cell lung cancer

Silvia Park, Emma Langley, Jong‐Mu Sun et al. · 2015 · Oncotarget

// Silvia Park 1, * , Emma Langley 2, * , Jong-Mu Sun 1 , Steve Lockton 2 , Jin Seok Ahn 1 , Anjali Jain 2 , Keunchil Park 1 , Sharat Singh 2 , Phillip Kim 2 , Myung-Ju Ahn 1 1 Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea 2 Prometheus Laboratories Inc, A Nestlé Health Science Company, Department of Research and Development, San Diego, CA, USA * These authors have contributed equally to this work Correspondence to: Myung-Ju Ahn, e-mail: silkahn@skku.edu Phillip Kim, e-mail: pkim@prometheuslabs.co

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Negative / Null Result ReportOpen accessMedicine

A phase II trial of nivolumab followed by ipilimumab and nivolumab in advanced non‐clear‐cell renal cell carcinoma

Ciara Conduit, Ian D. Davis, Jeffrey C. Goh et al. · 2023 · British Journal of Urology

OBJECTIVE: To evaluate the efficacy of sequential treatment with ipilimumab and nivolumab following progression on nivolumab monotherapy in individuals with advanced, non-clear-cell renal cell carcinoma (nccRCC). MATERIALS AND METHODS:…

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Negative / Null Result ReportOpen accessMedicine

Development of a measuring app for systemic sclerosis-related digital ulceration (SALVE: Scleroderma App for Lesion VErification)

Adrian K. Davison, Ashma Krishan, Robert P New et al. · 2024 · Lara D. Veeken

OBJECTIVES: To test the hypothesis that photographs (in addition to self-reported data) can be collected daily by patients with SSc using a smartphone app designed specifically for digital lesions, and could provide an objective outcome measure for use in clinical trials. METHODS: An app was developed to collect images and patient-reported outcome measures including Pain score and the Hand Disability in Systemic Sclerosis-Digital Ulcers (HDISS-DU) questionnaire. Participants photographed their lesion(s) each day for 30 days and uploaded images to a secure repository. Lesions were analysed both

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Negative / Null Result ReportOpen accessMedicine

A phase II study of ENMD-2076 in advanced soft tissue sarcoma (STS)

Zachary Veitch, Alona Zer, Herbert H. Loong et al. · 2019 · Scientific Reports

ENMD-2076, an aurora-A kinase inhibitor with anti-angiogenic properties, has shown activity in solid and hematologic malignancies. We investigated oral ENMD-2076 in an open-label, single-arm phase II study using 275 mg daily on a 28-day cycle in patients with advanced soft-tissue sarcomas (STS) receiving ≤1 line of prior therapy. Primary endpoint was 6-month progression-free survival (PFS) with ≤15% indicating no interest, and ≥40% indicating further interest in ENMD-2076. Secondary/exploratory endpoints included clinical benefit (CBR ≥6-months) and objective response (ORR) rates, PFS, OS, saf

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Negative / Null Result ReportOpen accessMedicine

EFFECTS OF ROUTINE PHYSICAL THERAPY WITH AND WITHOUT HIGH INTENSITY INTERVAL TRAINING ON BALANCE, QUALITY OF LIFE AND FUNCTION IN PARKINSON’S DISEASE PATIENTS

Muhammad Junaid Tahir, Komal Tehzeeb, Farah Javaid et al. · 2023

Background: Parkinson's disease, is a degenerative neurological disorder, may have an adverse effect on movement, balance, and coordination. Physical therapy, a frequent Parkinson's disease treatment, tries to improve the patient's…

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Negative / Null Result ReportOpen accessMedicine

Does Moxa Smoke Have Significant Effect on the Acupuncturist’s Respiratory System? A Population-Based Study

Chang Yu, Ning Zhang, Weikang Zhu et al. · 2019 · Evidence-based Complementary and Alternative Medicine

Objectives . To evaluate the safety of moxa smoke, especially to provide quantitative information and details for the occupational prevention of acupuncturists. Methods . We combined the questionnaire-based cross-sectional survey and lung function testing-based historical retrospective cohort research to investigate the safety of moxa smoke exposure (MSE) among acupuncturists. A mathematical regression model was established to quantitatively evaluate the relationship between moxa smoke exposure and the respiratory health of the acupuncturist. The smoke exposure time of the acupuncturist and th

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Negative / Null Result ReportOpen accessMedicine

No Significant Effect of the Individual Chronotype on the Result of Moderate Calorie Restriction for Obesity—A Pilot Study

Zofia Strojny, Rafał Rutkowski, Alina Kanikowska et al. · 2021 · Nutrients

Background: Chronotype is the pattern of the circadian rhythm that allows an individual to optimize times of sleep and activity. It has been observed that chronotypes may associate with some conditions and diseases, including obesity. It is not known, however, whether chronotypes determine the effectiveness of weight loss regimens. Therefore, in the present study, we compared the outcomes of a 3-week moderate calorie restriction undertaken by individuals with obesity under the same controlled hospital conditions. Methods: A total of 131 participants with obesity (median BMI 40.0) were studied.

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Negative / Null Result ReportOpen accessMedicine

Food preferences throughout the menstrual cycle – A computer-assisted neuro-endocrino-psychological investigation

Marie Lefebvre, Michael P. Hengartner, Enrico Tronci et al. · 2022 · Physiology & Behavior

BACKGROUND: As eating behavior changes in relation to the menstrual cycle and weight changes with menopausal transition, ovarian hormones appear to be involved in regulating eating behavior. However, observations are contradictory and are difficult to compare, due to methodological problems related to nutritional epidemiology. To better understand the relationship between ovarian steroid hormones and eating behavior, our study evaluates women's responses to visual food cues at different points in the menstrual cycle with their specific serum estrogen/progesterone levels and women's responses i

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Negative / Null Result ReportMedicine

Confirming Savoring’s Link to Fewer Cannabis Problems

Maha N. Mian, Brianna R. Altman, Luna F. Ueno et al. · 2020 · Journal of Psychoactive Drugs

Savoring has covaried inversely with cannabis problems and moderated the association between cannabis use and negative consequences related to use. Research has not yet addressed the acceptability of savoring interventions for cannabis…

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Negative / Null Result ReportOpen accessMedicine

Machine Learning Did Not Outperform Conventional Competing Risk Modeling to Predict Revision Arthroplasty

Jacobien H. F. Oosterhoff, Anne de Hond, Rinne M Peters et al. · 2024 · Clinical Orthopaedics and Related Research

BACKGROUND: Estimating the risk of revision after arthroplasty could inform patient and surgeon decision-making. However, there is a lack of well-performing prediction models assisting in this task, which may be due to current conventional…

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Negative / Null Result ReportOpen accessMedicine

Histogram analysis from stretched exponential model on diffusion-weighted imaging: evaluation of clinically significant prostate cancer

Eun-Ju Kim, Chan Kyo Kim, Hyun Soo Kim et al. · 2020 · British Journal of Radiology

Objective: To evaluate the usefulness of histogram analysis of stretched exponential model (SEM) on diffusion-weighted imaging in evaluating clinically significant prostate cancer (CSC). Methods: A total of 85 patients with prostate cancer…

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Negative / Null Result ReportOpen accessMedicine

Results of the Kigali Imbereheza Project: A 2-Arm Individually Randomized Trial of TI-CBT Enhanced to Address ART Adherence and Mental Health for Rwandan Youth Living With HIV.

Geri R. Donenberg, Jessica Fitts, Charles Ingabire et al. · 2022 · PubMed

BACKGROUND: Adolescents living with HIV have elevated mental distress and suboptimal antiretroviral therapy (ART) adherence. SETTING: Two urban clinics in Kigali, Rwanda. METHODS: A 2-arm individual randomized controlled trial compared…

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Negative / Null Result ReportOpen accessMedicine

Rethinking phase 2 trials in amyotrophic lateral sclerosis

Michael Benatar, Christopher McDermott, Martin R. Turner et al. · 2024 · Brain

There is a long history in amyotrophic lateral sclerosis (ALS) of promoting therapies based on phase 2 data, which then fail in phase 3 trials. Experience suggests that studies of 6 months in duration are too short, especially with…

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Negative / Null Result ReportOpen accessMedicine

A comprehensive evaluation of early potential risk factors for disease aggravation in patients with COVID-19

Qiang Tang, Yanwei Liu, Yingfeng Fu et al. · 2021 · Scientific Reports

The 2019 Coronavirus Disease (COVID-19) has become an unprecedented public crisis. We retrospectively investigated the clinical data of 197 COVID-19 patients and identified 88 patients as disease aggravation cases. Compared with patients without disease aggravation, the aggravation cases had more comorbidities, including hypertension (25.9%) and diabetes (20.8%), and presented with dyspnoea (23.4%), neutrophilia (31.5%), and lymphocytopenia (46.7%). These patients were more prone to develop organ damage in liver, kidney, and heart (P < 0.05). A multivariable regression analysis showed that adv

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Negative / Null Result ReportOpen accessMedicine

Thought-provoking Molecules for Drug Discovery: antioxidants

İpek Komşuoğlu Çelikyurt · 2011 · Pharmaceutica Analytica Acta

Affirmative influence of antioxidant vitamins may be observed in atherosclerosis and endothelial dysfunction, male infertility, Parkinson's disease (especially via lipoic acid), diabetes, brain tumors and skin maturation There is not yet…

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Negative / Null Result ReportOpen accessMedicine

Vitamin D and Chronic Disorders: A Review of Metabolic and Cardiovascular Diseases

Ewelina Młynarska, Wiktoria Lisińska, Katarzyna Hossa et al. · 2025 · Pharmaceuticals

Vitamin D, long recognized for its essential role in calcium-phosphate balance and bone health, has increasingly been identified as a pleiotropic regulator of metabolic, cardiovascular, and renal function. Deficiency of vitamin D is widespread worldwide and has been linked to a higher risk of insulin resistance, type 2 diabetes, atherosclerosis, hypertension, and chronic kidney disease. Meta-analyses suggest that each 10 nmol/L (≈4 ng/mL) increase in serum 25-hydroxyvitamin D [25(OH)D] is associated with about a 4% lower risk of type 2 diabetes, whereas other analyses indicate an approximately

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