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Failure-mode index

Search what already failed

A searchable index of real negative results, null findings, and replication failures from the published literature — so you can learn what didn't work before repeating it.

WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record (title, authors, DOI) compiled from open scholarly databases, with the abstract shown in full only where the paper is openly licensed (e.g. Creative Commons); otherwise a short excerpt is shown for reference under fair use. WASTE classifies each work by failure type; classifications are automated and approximate.

498 results for "randomized controlled trial" · page 12 of 17

Negative / Null Result ReportMedicine

Preloading With Nicotine Replacement Therapy in People With HIV Who Smoke: A Pilot Randomized Controlled Trial.

Cioe PA, Stang GS, Azam D et al. · 2025 · Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco

Introduction Smoking cessation rates in people with HIV (PWH) are lower than in the general population, even when evidence-based treatments are used. This 16-week study examined the feasibility, acceptability, and preliminary efficacy of…

View details →DOI: 10.1093/ntr/ntaf123
Negative / Null Result ReportOpen accessMedicine

Enhancing discharge decision-making through continuous monitoring in an acute admission ward: a randomized controlled trial.

Kant N, Garssen SH, Vernooij CA et al. · 2024 · Internal and emergency medicine

In Acute Admission Wards, vital signs are commonly measured only intermittently. This may result in failure to detect early signs of patient deterioration and impede timely identification of patient stability, ultimately leading to…

View details →DOI: 10.1007/s11739-024-03582-y
Negative / Null Result ReportOpen accessMedicine

Effects of Acute and Moderate Caffeine Doses on Sport Climbing Performance: A Randomized Controlled Trial.

Ruiz-López A, Montalvo-Alonso JJ, Martín-Rivas I et al. · 2026 · Nutrients

Background/Objectives : Caffeine is a well-established ergogenic aid in many strength- and endurance-based sports, but its efficacy in sport climbing remains underexplored despite the sport's unique physical demands on grip strength,…

View details →DOI: 10.3390/nu18020284
Negative / Null Result ReportOpen accessMedicine

The effects of kefir drink on liver aminotransferases and metabolic indicators in patients with nonalcoholic fatty liver disease: a randomized controlled trial.

Mohammadi F, Razmjooei N, Mohsenpour MA et al. · 2025 · BMC nutrition

Background and aim Probiotics play an important role in the control and treatment of non-alcoholic fatty liver disease (NAFLD). Kefir drink is a fermented beverage and has indicated some beneficial health effects. The aim of this study was…

View details →DOI: 10.1186/s40795-024-00989-w
Negative / Null Result ReportMedicine

Process evaluation of a comprehensive approach to reintegration of disability benefit recipients with multiple problems (CARm) into the labour market.

Brongers K, Hoekstra T, Wilming L et al. · 2024 · Disability and rehabilitation

Purpose As the effect evaluation of our randomized controlled trial the "Comprehensive Approach of Reintegration for clients with Multiple problems" (CARm) showed no superior effect on re-integration into paid employment of the clients…

View details →DOI: 10.1080/09638288.2023.2264765
Negative / Null Result ReportOpen accessMedicine

A Pilot Randomized Controlled Trial of a Single-Session Digital Acceptance and Commitment Therapy Intervention.

Levin ME, Mukasa MN, Bowers EM et al. · 2025 · Behavioral sciences (Basel, Switzerland)

Adherence challenges are common among digital mental health interventions (DMHIs). Single-session DMHIs may help by providing a low-intensity intervention that takes less time to complete. This pilot randomized controlled trial sought to…

View details →DOI: 10.3390/bs15010075
Negative / Null Result ReportOpen accessMedicine

Effect of a mHealth intervention on health literacy in patients completing cardiac rehabilitation: A randomized controlled trial with one- and five-year follow-up.

Lunde P, Finbråten HS, Pripp AH et al. · 2025 · International journal of cardiology. Cardiovascular risk and prevention

Background and aims Adherence to treatment is a significant challenge for patients with cardiac disease. Optimizing health literacy (HL) is essential in this context. Mobile health (mHealth) interventions have been suggested to improve…

View details →DOI: 10.1016/j.ijcrp.2025.200445
Negative / Null Result ReportOpen accessMedicine

Effect of Acetazolamide on Pulmonary Hemodynamics and Right Heart Function in Healthy Adults Going to Altitude: A Randomized Controlled Trial.

Mayer L, Lichtblau M, Furian M et al. · 2025 · Journal of the American Heart Association

Background Exposure to high altitude triggers hypoxic pulmonary vasoconstriction with a rise in pulmonary artery pressure (PAP). This may lead to symptomatic pulmonary hypertension with impaired right heart function and exercise capacity.…

View details →DOI: 10.1161/jaha.125.041941
Negative / Null Result ReportOpen accessMedicine

Effects of High-Intensity Interval Training on Steroid Hormones and Psychological Outcomes in Healthy Male Adolescents: A Randomized Controlled Trial.

Ouerghi N, Abassi W, Jebabli N et al. · 2026 · Sports (Basel, Switzerland)

The study investigated the effects of high-intensity interval training (HIIT) on cardiorespiratory fitness, hormonal, and psychological markers in adolescents. Twenty-eight healthy male adolescents were randomized to a HIIT group or a…

View details →DOI: 10.3390/sports14050209
Negative / Null Result ReportOpen accessMedicine

Design characteristics of studies evaluating the effect of non-surgical periodontal treatment on systemic health outcomes.

Treat T, Jones D, Lorenzano N et al. · 2026 · Journal of periodontology

Background Evidence for whether and how non-surgical periodontal treatment (NSPT) improves systemic outcomes remains equivocal. Inconclusive findings may in part be due to design variations of randomized controlled trials (RCTs) in this…

View details →DOI: 10.1002/jper.24-0847
Negative / Null Result ReportMedicine

Structural and construct validity assessment of the schizophrenia cognition rating scale (SCoRS) using data from three international phase 3 randomized controlled trials (CONNEX programme).

Pascoe B, Cocks K, Clarke N et al. · 2026 · Schizophrenia research

Cognitive impairment associated with schizophrenia (CIAS) is a fundamental symptom of the disorder, which significantly affects individuals' daily functioning and overall quality of life. Currently available antipsychotic drugs have little…

View details →DOI: 10.1016/j.schres.2026.03.028
Negative / Null Result ReportMedicine

Effects of time-restricted eating on glycemic control and variability in individuals with overweight/obesity and prediabetes: A secondary analysis of the RESET randomized controlled trial.

Kloura C, Jensen MM, Ekblond TS et al. · 2026 · Diabetes research and clinical practice

Aim The aim of this exploratory analysis was to investigate effects of time-restricted eating (TRE) on glycemic control and variability in adults with prediabetes. Methods This study utilized data from the Restricted Eating Time (RESET)…

View details →DOI: 10.1016/j.diabres.2026.113276
Negative / Null Result ReportMedicine

Impacts of non-pharmacological interventions on post-intensive care syndrome: An umbrella review of systematic reviews and meta-analyses of randomized controlled trials.

Cai Y, Ren X, Ding C · 2026 · Intensive & critical care nursing

Objectives To assess the effects of various non-pharmacological interventions on long-term outcomes associated with Post-Intensive Care Syndrome (PICS) in intensive care unit (ICU) survivors, based on existing systematic reviews and…

View details →DOI: 10.1016/j.iccn.2025.104326
Negative / Null Result ReportMedicine

A Targeting Arm for Interlocking Screws Reduces Radiation Exposure: Results of a Prospective Randomized Controlled Trial.

Stanley M, Huang K, Garlich J et al. · 2025 · Journal of orthopaedic trauma

Objectives To compare time, fluoroscopic utilization, and number of misses for placement of far interlocking screws in tibial and femoral nails using a targeting arm (Targeter) versus perfect circle technique (Control). Methods . Design…

View details →DOI: 10.1097/bot.0000000000003066
Negative / Null Result ReportMedicine

Assessing Blood Pressure, Mental Health, and HRV Responses to Integrated Acupuncture in Hypertensive Patients: A Pilot Randomized Controlled Trial.

Singh D, Kodali PB, Sharma G et al. · 2025 · Medical acupuncture

Abstract This study aimed to investigate the effects of an integrated acupuncture (IA) protocol on blood pressure (BP), depression, anxiety, stress scores, and heart rate variability (HRV) in hypertensive patients. Abstract The study was a…

View details →DOI: 10.1089/acu.2024.0065
Negative / Null Result ReportMedicine

Diabetes Mellitus and Lung Cancer Screening Outcomes in the National Lung Screening Trial.

Young RP, Ward RC, Scott RJ et al. · 2025 · Annals of the American Thoracic Society

Rationale: Current eligibility criteria for lung cancer (LC) screening are derived from randomized controlled trials and largely based on age and smoking history. However, the individualized benefits of screening are highly variable and…

View details →DOI: 10.1513/annalsats.202411-1235oc
Negative / Null Result ReportOpen accessMedicine

Challenges in Results Robustness of Trials with Missing Data for the Primary Endpoint: Insights from Coronary Balloon/Stent Trials.

Lang X, Zhao Y, Zhu Y et al. · 2025 · Risk management and healthcare policy

Background To assess the consequence of different degrees of missing primary endpoint data for randomized controlled trials and to find the influence factors. Methods PubMed, Cochrane Library, EMBASE and ClinicalTrials.gov were searched up…

View details →DOI: 10.2147/rmhp.s511449
Negative / Null Result ReportMedicine

Short-term effects of static stretching versus myofascial release on hamstring tightness and lower extremity function in sedentary IT professionals: a randomized controlled trial.

Anand M, Kashyap R, Bhat P et al. · 2026 · BMC sports science, medicine & rehabilitation

Background Prolonged sedentary work is associated with hamstring tightness, reduced flexibility, and functional limitations among information technology (IT) professionals. Comparative evidence for static stretching and myofascial release…

View details →DOI: 10.1186/s13102-026-01818-2
Negative / Null Result Report

The KOTHA Framework: a counterfactual simulation and Bayesian integration approach to diagnosing structural information loss in randomized controlled trial meta-analyses

Tatsuki O · 2026 · Preprint

Abstract Background Discrepancies between observational and randomized controlled trial (RCT) meta-analyses are typically attributed to confounding. An alternative explanation — that RCTs systematically exclude high-risk patients, causing…

View details →DOI: 10.21203/rs.3.rs-9420092/v1
Negative / Null Result ReportMedicine

Preperitoneal analgesia under direct visualization: laparoscopic-guided deep rectus sheath block improves postoperative pain control after laparoscopic cholecystectomy: a randomized controlled trial.

Kavakli, Bozkurt, Diri et al. · 2026 · Surgical endoscopy

Conventional abdominal wall blocks primarily target somatic afferent nerves and may therefore provide limited relief for the peritoneal component of postoperative pain. This study aimed to investigate whether a laparoscopic-guided deep…

View details →DOI: 10.1007/s00464-026-12973-5
Negative / Null Result ReportMedicine

Digital nudge emails to increase early registration for an occupational health support program: a stratified randomized controlled trial.

Muto, Ohtake · 2026 · Journal of occupational and environmental medicine

To evaluate whether nudge emails increased early registration for an occupational health support program among employees advised to act after annual health checkups. In this stratified randomized controlled trial, 871 employees with no…

View details →DOI: 10.1097/jom.0000000000003791
Negative / Null Result ReportMedicine

The TargetEd MAnageMent Intervention for Reducing Stroke Risk in Black Men: A 6-Month Prospective Randomized Controlled Trial.

Sajatovic, Still, Burant et al. · 2026 · International journal of aging & human development

This 6-month randomized controlled trial compared TEAM, a group intervention to reduce stroke risk versus a 6-month wait-list control in Black men with stroke or transient ischemic attack. The primary outcome was the change from baseline…

View details →DOI: 10.1177/00914150261458217
Negative / Null Result ReportMedicine

Comparison of methods of Weaning from Nasal Continuous Positive Airway Pressure in Preterm Infants: A Randomized Controlled Trial.

Asif, Rais, Anwar et al. · 2026 · Pakistan journal of medical sciences

To compare the efficacy of different nasal continuous positive airway pressure (NCPAP) weaning strategies in preterm infants presenting with respiratory distress syndrome (RDS). This randomized controlled trial was conducted at the…

View details →DOI: 10.12669/pjms.42.5.15003
Negative / Null Result ReportMedicine

The effect of music therapy on cognition in neurorehabilitation: A pilot crossover randomized controlled trial.

Gee Lim, Feng Ng, Fen Beh · 2026 · Turkish journal of physical medicine and rehabilitation

This study aims to assess the feasibility of this pilot study's design and implementation and to compare the effect of active and passive music therapy interventions and standard care on cognition in neurorehabilitation. Participants aged…

View details →DOI: 10.5606/tftrd.2026.15231
Negative / Null Result ReportMedicine

A polypill strategy for lipid lowering and anti-platelet therapy after acute coronary syndrome: A pilot randomized controlled trial.

Coellar, Keshvani, Jain et al. · 2026 · American journal of preventive cardiology

Medication non-adherence following acute coronary syndrome (ACS) is common, especially among underserved populations. The use of fixed-dose combination pills (polypills) may improve both adherence and prescription practices. This…

View details →DOI: 10.1016/j.ajpc.2026.101499
Negative / Null Result ReportMedicine

Efficacy of High Flow Nasal Cannula in Reducing Hypoxemia in Children Undergoing Elective Flexible Fibreoptic Bronchoscopy as Compared to Conventional Low Flow Nasal Cannula: A Randomized Controlled Trial.

Rajvanshi, Kumar, Goyal et al. · 2026 · Pediatric pulmonology

Flexible fibreoptic bronchoscopy (FFB) is widely used in pediatric pulmonology, though hypoxemia remains a primary concern during the procedure. High-flow nasal cannula (HFNC) has shown potential in reducing hypoxemia in adults undergoing…

View details →DOI: 10.1002/ppul.71683
Negative / Null Result ReportMedicine

Oral health-related quality of life after early extraction of primary second molars in children with congenitally missing second premolars: a randomized controlled trial with matched controls.

Naoumova, Nawaia, Krekmanova · 2026 · European journal of orthodontics

Extraction of mandibular primary second molars in patients with congenitally missing second premolars may influence oral health-related quality of life (OHRQoL), yet this has not been previously investigated. To assess the impact of…

View details →DOI: 10.1093/ejo/cjag048
Negative / Null Result ReportMedicine

Clinical Performance of Bulk-Fill Versus Incremental Composite Placement Approaches in Vital Posterior Teeth: A 24 Months Randomized Controlled Trial.

Mohammed, Naser, Abozaid · 2026 · Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.]

Composite resin placement technique may influence marginal integrity, polymerization stress distribution, and long-term clinical performance of posterior restorations. This randomized controlled clinical trial evaluated the 24-month…

View details →DOI: 10.1111/jerd.70202
Negative / Null Result ReportMedicine

Impact of different domperidone dosages on reflux esophagitis treated with esomeprazole: a randomized controlled trial.

Niu, Bao, Zhao · 2026 · Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus

This study aimed to systematically evaluate the efficacy and safety of different doses of domperidone (DOM) combined with esomeprazole (ESM) in the treatment of reflux esophagitis, providing a basis for precise clinical medication. This…

View details →DOI: 10.1093/dote/doag053