Clinical trials: Retrospective Study
Fractals, Panoramic Radiography
Effects of Long-Term Antihistamine Use on Mandibular Bone in Children
The purpose of this retrospective radiographic study is to evaluate the effects of long-term H1 antihistamine use on mandibular trabecular bone structure in children aged 8-10 years.
- Trial name
- NCT07752485
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Recep Tayyip Erdogan University Training and Research Hospital
Hip Arthrosis, Hip Injuries
Retrospective Assessment of the Morphology of Acetabular Defects: A 3D Reconstruction Approach
In this study, we aim to develop a statistical shape model and use it to reconstruct the shape of acetabula with severe defects (Paprosky 3a-3b). This will allow us to visualise and assess the morphology of the missing bone.
- Trial name
- NCT04638140
- Where
- Belgium
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Intracranial Aneurysm
Clinical Performance Evaluation of RDX-Aneurysm for Detecting Intracranial Aneurysms on TOF-MRA
This retrospective, multi-center, observational case-control study evaluates the standalone performance of RDX-Aneurysm, a computer-assisted detection software, for detecting and marking suspected saccular intracranial aneurysm…
- Trial name
- RDX-Aneurysm (NCT07655635)
- Where
- 3 sites in Taiwan
- Volunteers
- 550 people, healthy volunteers welcome
- Sponsor
- Taipei Medical University Shuang Ho Hospital
COVID-19, Bariatric Surgery Candidate
Bariatric Surgery and COVID-19
The National Bariatric Surgical Registry (NBSR) is a prospectively collected database for all patients undergoing elective bariatric surgery in the UK.
- Trial name
- NCT05532891
- Testing
- COVID-19 pandemic
- Where
- United Kingdom
- Volunteers
- 11,545 people, healthy volunteers welcome
- Sponsor
- Imperial College London
Infectious Disease
Antibiotic Outbreak, Risk Factors for Never Event, Prediction of Inappropriate Use
In order to decrease inappropriate antibiotic use, drivers of inappropriate use must be identified locally. This study will focus on the MOST inappropriate use, which are defined as 'never events'.
- Trial name
- NCT03489330
- Where
- United States
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- Midwestern University
Inflammatory Bowel Diseases, Ileostomy
Malnutrition Associated With Complications After Ileostomy Reversal
An ileostomy is a surgical opening established by bringing the end or a loop of the ileum to discharge directly outside the body.
- Trial name
- NCT03909542
- Where
- United States
- Volunteers
- 359 people, healthy volunteers welcome
- Sponsor
- Icahn School of Medicine at Mount Sinai
Follicular Thyroid Cancer, SEER Database Analysis
Long-term Survival Outcomes of Total Thyroidectomy and Radioactive Iodine Therapy in Unilateral T3/T4 FTC
This study aims to thoroughly examine survival disparities in patients with T3 or T4 stage follicular thyroid carcinoma (FTC) as classified by the AJCC staging system.
- Trial name
- NCT06437873
- Testing
- Total Thyroidectomy (TT), Radioactive iodine treatment(RAIT)
- Volunteers
- 2,957 people, healthy volunteers welcome
- Sponsor
- Dezhou Hospital Qilu Hospital of Shandong University
Frozen Embryos
Time - Lapse Analysis of Frozen Embryos
A retrospective analysis of embryo defrost cycles that were rated in the EmbryoScope system and frozen will be performed. The study will examine the possible association between the morphokinetic grading received by these embryos…
- Trial name
- NCT04255641
- Testing
- time lapse analysis
- Where
- Israel
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Carmel Medical Center
Knee Arthritis Osteoarthritis, Cruciate Ligament Rupture
A Retrospective and Prospective Study: Monocompartimental Knee Arthroplasty Combined With Anterior Cruciate Ligament Reconstruction Surgery - a Pilot Study
This study aims to collect datas about patient who underwent simultaneous monocompartimental knee replacement and anterior cruciate ligament recontruction
- Trial name
- MONO-LCA (NCT07377669)
- Testing
- UKA + ACLr
- Where
- Italy
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Istituto Ortopedico Rizzoli
Alzheimer Disease, Dementia With Lewy Bodies (DLB)
Retrospective Observational Study of Blood-based Biomarkers in the Diagnosis and Monitoring of Patients With a Neurodegenerative Disease or Mental Disorder
This is a retrospective observational study to evaluate the clinical utility of blood-based biomarkers in the diagnosis and management of patients with a neurodegenerative disease (ND) or mental disorder (MD).
- Conditions
- Alzheimer Disease, Dementia With Lewy Bodies (DLB), Frontotemporal Dementia (FTD), Major Depressive Disorder (MDD)
- Trial name
- Synapsing-BK (NCT07314190)
- Where
- Spain
- Volunteers
- 1,799 people, healthy volunteers welcome
- Sponsor
- Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau
Myopia
Sustained Effect of Red-light Therapy for Myopia Control: A 2-Year Post-Trial Follow-up Study
To evaluate the long-term efficacy and safety of red-light therapy for myopia control over 2 years, and the potential rebound effect after treatment cessation.
- Trial name
- NCT06232161
- Testing
- Red-light therapy device, Spectacles
- Where
- China
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Beijing Airdoc Technology Co., Ltd.
Laparoscopic Sleeve Gastrectomy, Sleeve Gastrectomy
A Retrospective Multicenter Comparison of Laparoscopic and Robotic-Assisted Roux-en-Y Gastrectomy
The prevalence of obesity has tripled in the last 50 years with presently about 1.7 billion of the world population aged 18 years and over either overweight or obese.1 In the US alone, 35% of the population is obese.2 Although…
- Trial name
- NCT05224791
- Testing
- Roux-en-Y Gastric Bypass, Sleeve Gastrectomy
- Where
- United States
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Methodist Health System
Asthma
REALL: A Retrospective Observational Study to Compare the Effectiveness and Cost-Effectiveness Between Different Step-3 Asthma Treatment Strategies
This is a retrospective observational study utilising anonymised individual patient clinical and prescribing information routinely collected by UK General Practitioners (GPs).
- Trial name
- REALL (NCT00628563)
- Where
- United Kingdom
- Volunteers
- 50,000 people, healthy volunteers welcome
- Sponsor
- University of Aberdeen
Primary Ciliary Dyskinesia, Kartagener Syndrome
Physical Fitness, Exercise Capacity and Activities of Daily Living in Primary Ciliary Dyskinesia: a Retrospective Study
Decreased pulmonary function, peripheral muscle strength, and exercise capacity were reported in primary ciliary dyskinesia (PCD) in recent studies.
- Conditions
- Primary Ciliary Dyskinesia, Kartagener Syndrome, Immotile Cilia Syndrome
- Trial name
- NCT05040607
- Testing
- Data Collection
- Where
- Turkey (Türkiye)
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Hacettepe University
Dental Implant
Evaluation of Implants Placed in the Regular Dentist's Practice
This study is an evaluation of the implants placed in a regular dentist's practice regarding: gingiva condition stability of implant prothetic quality questionnaires for the patients
- Trial name
- NCT00286533
- Testing
- Clinical examination (implant stability, gingiva condition, etc.), Questionnaires
- Where
- Belgium
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- University Hospital, Ghent
Normal CT Scan, Dysplasic Disease
Dose-Quality Study in the Temporal Bone Computed Tomography in Routine Care
Because of the complexity of the structures studied, imaging the temporal bone requires compliance with a number of image quality criteria, in order to achieve optimum spatial resolution of the most clinically relevant anatomical…
- Conditions
- Normal CT Scan, Dysplasic Disease, Tumoral Disease, Infectious Disease
- Trial name
- NCT06827106
- Where
- France
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Aix Marseille Université
Vitamin D
Association of Vitamin D Intake, and Associated Factors with Low Back Pain: a Retrospective Cohort Study
While there have been studies indicating a connection between insufficient levels of vitamin D and persistent low back pain (LBP), there is still a lack of definitive evidence.
- Trial name
- NCT06765382
- Where
- Jordan
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Mutah University
Infant Development, Sensory Disorder
The Prechtl's General Movement Assessment, Hammersmith Infant Neurological Examination and Sensory Profile-2
In the Neonatal Intensive Care Unit (NICU), infants encounter many sensory stimuli (excessive noise, bright lights, painful medical applications, etc.) that are not present in the uterus.
- Conditions
- Infant Development, Sensory Disorder, Sensory Processing Disorder, Motor Delay
- Trial name
- highrisk (NCT05217199)
- Testing
- Measurements
- Where
- Turkey (Türkiye)
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Kahramanmaras Sutcu Imam University
Urinary Tract Infections
Comparison of Pre-procedural PCR and Culture-based UTI Assessment Prior to Intravesical Botox Injection
This study is a retrospective record review to determine whether a novel multiplex PCR assay can be utilized as a screening method for UTI in patients receiving Botox injection to treat overactive bladder (OAB).
- Trial name
- NCT04817865
- Testing
- Multiplex-PCR with Pooled Antibiotic Susceptibility Testing (M-PCR/P-AST), Urine Culture
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Pathnostics
Excessive Lateral Pressure Syndrome
Retrospective Clinical Study of Excessive Lateral Pressure Syndrome
This research focuses on 1 January 2015 to December 2018 to the undergraduate course to see a doctor and accept the lateral retinaculum extracapsular release of 100 patients were retrospectively study, through the follow-up…
- Trial name
- NCT04977492
- Testing
- extracapsular release of lateral retinaculum
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Peking University Third Hospital