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Browse the failure-mode index

11,416 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

Prediction of Clinically Significant Improvements During the Interdisciplinary Intensive Outpatient Program for Traumatic Brain Injury Using Machine Learning.

Srikanchana R, Samuel D, Powell J et al. · 2025 · Annals of biomedical engineering

Purpose The aim of this research was to assess the potential for machine learning to predict clinically significant patient improvement during a four-week interdisciplinary Intensive Outpatient Program (IOP) for traumatic brain injury…

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Negative / Null Result ReportOpen accessMedicine

Non-Pharmacological Interventions for Symptom Cluster Management in Women with Cancer: A Scoping Review of Multicomponent and Mechanism-Based Approaches.

Irmala N, Solehati T, Sukmawati S · 2026 · International journal of women's health

Background Women with cancer frequently experience co-occurring symptoms, including cancer-related fatigue, sleep disturbance, and psychological distress, which negatively impact quality of life. Despite the increasing use of…

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Negative / Null Result ReportMedicine

Similar performance with electrochemically deposited hydroxyapatite coating versus plasma porous spray in press-fit acetabular components for primary total hip arthroplasty: a randomised controlled study of early outcomes with DEXA.

Liu D, Turner D, Cadman J et al. · 2026 · Hip international : the journal of clinical and experimental research on hip pathology and therapy

Background Hydroxyapatite (HA) is an osteo-inductive material commonly added to the surface of components to enhance bone implant fixation; however, clinical studies have demonstrated inferior performance of HA coated acetabular cups in…

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Negative / Null Result ReportMedicine

Absent Bone Marrow Edema on MRI in a Patient with Acute Vertebral Compression Fractures: Implications for Vertebral Augmentation.

Singh S, Galperin M, Waghray-Penmetcha T · 2026 · Pain medicine case reports

Background Vertebral compression fractures (VCFs) are a common and debilitating consequence of multiple myeloma (MM). Acute VCFs often benefit from percutaneous vertebral augmentation (PVA), indicated by bone marrow edema (BME) on MRI. We…

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Negative / Null Result ReportMedicine

Platelet-Rich Plasma and Bone Marrow Stimulation in Double-Row Rotator Cuff Repair Does Not Improve Clinical Outcomes but Reduces Retear Rates: A Retrospective Analysis With Propensity Score Matching.

Chang HH, Chun YM, Kim SJ et al. · 2026 · Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association

Purpose To compare clinical and radiologic outcomes among patients undergoing double-row suture bridge (DRSB) repair alone, DRSB with platelet-rich plasma (PRP) augmentation, and DRSB with bone marrow stimulation (BMS) augmentation.…

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Negative / Null Result ReportMedicine

The Influence of Os Acromiale on Patient Outcomes After Reverse Total Shoulder Arthroplasty: A Matched Cohort Study.

Schneider BS, Pfaehler CD, Hao KA et al. · 2026 · The Journal of the American Academy of Orthopaedic Surgeons

Background Although os acromiale is often noted on preoperative imaging in patients undergoing reverse total shoulder arthroplasty (rTSA), its clinical significance is ill-defined. The purpose of this study was to compare the clinical…

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Negative / Null Result ReportMedicine

Effectiveness and Safety of Ozone Therapy in Humans: An Umbrella Review of Systematic Reviews with Meta-Analyses of Randomized Clinical Trials.

Cacciatore S, Abbatecola G, Calvani R et al. · 2026 · Medical sciences (Basel, Switzerland)

Background/objectives Ozone therapy has been proposed across multiple clinical conditions based on hormetic, antioxidant, and immunomodulatory effects, but its efficacy and safety remain controversial. We conducted an umbrella review to…

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Negative / Null Result ReportMedicine

Ketogenic diet as a therapeutic intervention for biochemical hyperandrogenism in PCOS women with obesity or overweight: a meta-analytic study.

Maseroli E, Alfaroli C, Cirillo M et al. · 2026 · Journal of endocrinological investigation

Purpose To assess whether the Ketogenic Diet (KD) is associated with improvements in biochemical markers of hyperandrogenism in women diagnosed with Polycystic Ovary Syndrome (PCOS) with obesity or overweight. Methods A systematic search…

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Negative / Null Result ReportMedicine

Beta-blocker therapy and all-cause mortality after a coronary event: A matched nested case-control study using the Victorian Cardiac Outcomes Registry linked data.

Cataldo-Miranda P, Koh HJW, Stub D et al. · 2026 · Current problems in cardiology

Aims Beta-blocker therapy has traditionally been recommended following coronary events based on clinical trials involving patients with systolic dysfunction. Its survival benefit in patients with preserved left ventricular ejection…

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Negative / Null Result ReportMedicine

A comparison of hysteroscopic tubal electrocoagulation and laparoscopic salpingectomy for hydrosalpinx: short- and long-term pregnancy outcomes.

Tan W, Chen L, Li X et al. · 2026 · European journal of obstetrics, gynecology, and reproductive biology

Purpose Hydrosalpinx impairs embryo implantation and development, leading to infertility or miscarriage. Therefore, the effective treatment of hydrosalpinx is crucial for improving pregnancy outcomes. Here, we investigated the comparative…

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Negative / Null Result ReportMedicine

Evaluating the Impact of Ursodeoxycholic Acid on Hepatic Clearance of [<sup>99m</sup>Tc]Tc-Sestamibi: A Randomized Controlled Trial to Improve Myocardial Perfusion Imaging.

Hosseinzadeh E, Arefnia M, Bayat M et al. · 2026 · Cancer biotherapy & radiopharmaceuticals

Background Intense hepatobiliary uptake of [ 99m Tc]Tc-sestamibi in myocardial perfusion scintigraphy (MPS) often degrades image quality by obscuring the inferior myocardial wall, leading to equivocal studies. While nonpharmacological…

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Negative / Null Result ReportMedicine

Baseline body mass index modifies the effects of digital health interventions compared with usual care on cardiovascular disease risk in people with type 2 diabetes: a secondary analysis of the SMARTDiabetes trial.

Ren J, Sun X, Zhang Z et al. · 2026 · The American journal of clinical nutrition

Background Body weight is a critical determinant of cardiovascular disease (CVD) risk among people with type 2 diabetes mellitus (T2DM), substantially contributing to the incidence of and outcomes from CVD. However, the impact of body…

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Negative / Null Result ReportMedicine

Immune Checkpoint Inhibitor Therapy for Advanced, Unresectable Esophageal Squamous Cell Carcinoma: A Series of Patient-level Meta-analyses From Phase III Trials.

Beshr MS, Shembesh RH, Nounou MV et al. · 2026 · Clinical oncology (Royal College of Radiologists (Great Britain))

Aim This study reconstructed patient-level data to provide updated evidence on survival outcomes across PD-L1 expression subgroups. Materials and methods A systematic search was conducted on March 2, 2025, using PubMed, Embase, Web of…

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Negative / Null Result ReportMedicine

Effect of vaginal estrogen supplementation for luteal phase support in the GnRH antagonist protocol on pregnancy outcomes for IVF/ICSI cycles: a randomized controlled trial.

Yang X, Zhu L, Chen R et al. · 2026 · Human reproduction open

Study question Does adding vaginal estradiol to standard progesterone luteal phase support improve ongoing pregnancy rates in normal-responder IVF/ICSI patients undergoing GnRH antagonist cycles? Summary answer The addition of vaginal…

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Negative / Null Result ReportMedicine

Energy restriction and iron supplementation improve iron status in women with obesity regardless of red meat consumption: a randomized controlled trial.

Ortiz-Gutiérrez S, Serralde-Zúñiga AE, González-Salazar LE et al. · 2026 · Scientific reports

Iron deficiency without anemia (IDNA) may be linked to obesity-related inflammation. Weight reduction and heme-iron intake from red meat are proposed to improve iron status. This randomized controlled trial (NCT06104800) assessed the…

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Negative / Null Result ReportMedicine

Leptomeningeal carcinomatosis in gastric cancer: a single-center retrospective analysis of 86 cases.

Byun SH, Kim TS, Ahn S et al. · 2026 · Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association

Background Leptomeningeal carcinomatosis (LMC) is a rare but highly lethal manifestation of gastric cancer. We sought to describe its clinical features and define prognostic factors in a large single-center cohort. Methods We…

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Negative / Null Result ReportMedicine

Evaluation of betaxolol in improving the glasgow outcome scale extended (GOSE) of the acute phase of patients with mild to moderate Traumatic Brain Injury: a double blinded randomized clinical trial.

Zeynodini Meimand H, Anbarloui MR, Eslamian M et al. · 2025 · Neurological research

Background Traumatic brain injury (TBI) is one of the most important causes of morbidity and mortality. It is important to have an effective treatment that can improve the quality of life and cognitive functions of these patients.…

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Negative / Null Result ReportMedicine

Dose-Response Relationships of Tea, Coffee, and Alcohol Consumption With Cognitive Function in Middle-Aged and Older Adults: Analysis Based on the China Health and Nutrition Survey (CHNS).

Zeng Z, Ye X, He H et al. · 2025 · Journal of applied gerontology : the official journal of the Southern Gerontological Society

This study examined the associations of tea, coffee, and alcohol consumption with cognitive function in Chinese adults aged ≥45 years ( n = 1326), using data from the China Health and Nutrition Survey (1997-2006). Multiple linear…

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Negative / Null Result ReportOpen accessMedicine

Platelet-rich fibrin matrix as treatment for complex anal fistulae: A 3-year experience at a tertiary centre.

Lusilla Lopez A, Fält UA, Buchwald P et al. · 2026 · Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland

Aim Treatment of complex anal fistulae remains a significant challenge for physicians and patients. A sphincter-preserving technique with bioactive platelet-rich fibrin matrix is one option. This three-year study aimed to evaluate the…

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Negative / Null Result ReportOpen accessMedicine

The efficacy of nutritional phytochemical compounds in improving cognition.

Marsh A, Quelch D, Mackonochie M et al. · 2026 · The international journal of neuropsychopharmacology

The incidence of cognitive disorders is rising, and medications to address cognitive impairments are limited. Phytochemical compounds have had some success in improving cognitive outcomes in preclinical studies. However, the evidence…

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Negative / Null Result ReportMedicine

Randomized clinical trial of duplex ultrasound surveillance after endovascular therapy for chronic limb-threatening ischemia.

Godoy MR, Brochado-Neto FC, Martins Cury MV et al. · 2025 · Journal of vascular surgery

Objective This study aimed to assess whether duplex ultrasound (DUS) surveillance yielded a better outcome compared with ankle-brachial index (ABI) surveillance after femoropopliteal endovascular therapy (EVT) in a cohort of patients…

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