Clinical trials: Retrospective
Immediate Implant Placement
Socket Evaluation System to Predict Labial Bone Formation Around Immediate Implants. A Retrospective Cone Beam Computed Tomography Analysis.
Palate implant placement in extraction sockets, with a minimum of 2 mm between the implant and the inner side of the facial socket wall, has been advised as a step towards a 3D restorative-driven posture.
- Trial name
- NCT06246253
- Testing
- Virtual implant placement following safe angle concept, actual implant placement following safe angle concept
- Where
- Egypt
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Misr International University
Increase in Urobilinogen in Urine Prior to Delivery, Weight Loss After 37 Weeks Gestation Prior to Delivery
Urobilinogen, Maternal Weight Loss and Impending Parturition at Term
The purpose of this study, then, is to search existing clinic and hospital records for answers to the following two questions: (1) Do pregnant women who are at least 37 weeks gestation and who have an increase in urubilinogen on…
- Trial name
- NCT00826605
- Where
- 2 sites in United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Oklahoma State University Center for Health Sciences
Alveolar Bone Loss, Sinus Floor Augmentation
Impact of Alveolar Ridge Preservation on the Potential Need for Sinus Floor Elevation: A 10-year Retrospective Radiographical Study
This research aims to investigate the influence of alveolar ridge preservation, after extraction of maxillary posterior teeth, on the potential need of sinus floor augmentation procedures (that include lateral or crestal sinus…
- Conditions
- Alveolar Bone Loss, Sinus Floor Augmentation, Sinus Pneumatization, Alveolar Bone Atrophy
- Trial name
- NCT07526129
- Testing
- Alveolar ridge preservation using bony biomaterials
- Where
- Lebanon
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- Saint-Joseph University
Fasting, Chronic Disease
A Retrospective and Prospective Cohort Study of the 21-day Fasting-like Diet in Patients With Metabolic and Autoimmune Diseases
Effectiveness of fasting or fasting-mimicking diet has been proved an effective approach to treat metabolic and autoimmune diseases in mice.
- Conditions
- Fasting, Chronic Disease, Autoimmune Diseases, Metabolic Disease
- Trial name
- NCT03193177
- Testing
- the 21-day fasting-like diet
- Where
- China
- Volunteers
- 144 people, healthy volunteers welcome
- Sponsor
- Tsinghua University
Polycystic Kidney Diseases
Outcome of Autosomal Dominant Polycystic Kidney Disease Patients on Peritoneal Dialysis: a National Retrospective Study Based on Two French Registries (the French Language Peritoneal Dialysis Registry and the French Renal Epidemiology and Information Network).
Pathological features of Autosomal Dominant Polycystic Kidney disease (ADPKD) include enlarged kidney volume, a higher frequency of digestive diverticulitis and abdominal wall hernias.
- Trial name
- ADPKDPD (NCT03948113)
- Testing
- Dialysis
- Where
- France
- Volunteers
- 17,350 people, healthy volunteers welcome
- Sponsor
- CHU de Reims
Periodontal Diseases, Tooth Loss
Effect of Periodontal Maintenance Therapy on Tooth Loss in Regular and Irregular Compliant Smokers and Non-Smokers: A Cohort Retrospective Analysis With a Follow-up Up to 40 Years
Periodontal diseases are infections cause by dental plaque (Socransky, 1970). Risk factors are present which modify the course of disease progression.
- Conditions
- Periodontal Diseases, Tooth Loss, Compliance, Smoking
- Trial name
- NCT04938089
- Testing
- Maintenance
- Where
- Lebanon
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Saint-Joseph University
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
Heart Disease, Acute Coronary Syndrome
Intra Hospital Mortality Risk Factors in Patients Admitted to Cardiac Intensive Care Units in 2017 in France
Retrospective, observational cohort study. Objectives: To identify intra hospital mortality risk factors in patients admitted admitted to cardiac intensive care units (CICU).
- Conditions
- Heart Disease, Acute Coronary Syndrome, Acute Cardiac Failure, Heart Rhythm Disorders
- Trial name
- USIC -BNAT (NCT03835169)
- Where
- France
- Volunteers
- 200,000 people, healthy volunteers welcome
- Sponsor
- University Hospital, Montpellier
Appendicitis
Abdominal Drainage During Appendicectomy - Resources Down the Drain: A Retrospective Cohort Study
The investigators performed a retrospective review of all patients undergoing appendicectomy from March-November 2018 using the online theatre database and discharge letters.
- Trial name
- NCT04163211
- Testing
- Abdominal drain
- Where
- United Kingdom
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- The Whittington Hospital NHS Trust
Pulp Exposure, Dental
Retrospective Evaluation of the Results of Direct Pulp Capping Treatment
The aim of this retrospective study is to evaluate the vitality of teeth that had been treated with calcium hydroxide in direct pulp capping cases.
- Trial name
- NCT05397964
- Testing
- Radiopaque Calcium Hydroxide Composition
- Where
- Turkey (Türkiye)
- Volunteers
- 190 people, healthy volunteers welcome
- Sponsor
- Istanbul Medipol University Hospital
Aphakia, Acquired
Scleral Fixation of BunnyLens With GoreTex Suture- Initial Results
This study evaluates the Visual Acuity and refraction of patients post 4-point Scleral fixation of BunnyLens (Intra Ocular Lens- IOL) with GoreTex sutures.
- Trial name
- NCT03437434
- Testing
- Visual Acuity
- Where
- Israel
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- DAVID HAUSER
Polyp, Colonic
Influencing Factors in Patients With Colorectal and Gastric Polyps a Retrospective Study
The identification of risk factors of colorectal/gastric polyp is more helpful for preventing colorectal cancer. And modifiable factors (such as high-fat diet, abnormal blood lipid, smoking, lack of exercise, obesity), and…
- Trial name
- NCT04444947
- Where
- China
- Volunteers
- 64,889 people, healthy volunteers welcome
- Sponsor
- The First Affiliated Hospital with Nanjing Medical University
Tibia Fracture
Ilizarov Frame or Uni Planar External Fixator in the Cost-conscious Era
Tibial shaft fracture is a common injury worldwide. Their treatment, prognosis, and outcome are determined by the mechanism of injury, presence of communition, soft tissue injury and displacement.
- Trial name
- NCT03936972
- Testing
- ilizarov circular frame and uni-planarexternal fixator
- Volunteers
- 93 people, healthy volunteers welcome
- Sponsor
- Aga Khan University
Aging
The Bioavailability of Compounded and Generic Rapamycin in Normative Aging Individuals
This study collected real-world evidence to better understand and define the relative bioavailability ratio between compounded rapamycin and generic rapamycin, with a specific focus on relative efficacy in increasing rapamycin…
- Trial name
- NCT06550271
- Testing
- Rapamycin
- Where
- United States
- Volunteers
- 67 people, healthy volunteers welcome
- Sponsor
- AgelessRx
Dental Implantation, Cone-Beam Computed Tomography
The Effect of Different Window-preparation Approaches on the Clinical Outcomes of Lateral Sinus Floor Elevation
This study retrospectively evaluated the effect of two different lateral window preparation techniques on peri-implant bone augmentation for patients who underwent lateral sinus floor elevation with simultaneous implant placement…
- Conditions
- Dental Implantation, Cone-Beam Computed Tomography, Surgical Procedure, Unspecified, Maxillary Sinus Floor Augmentation
- Trial name
- NCT06323993
- Testing
- Piezoelectric osteotomy
- Where
- China
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- The Dental Hospital of Zhejiang University School of Medicine
Cognitive Impairment, Motor Disorders
Linus Health CDS Retrospective Validation Study
This study is a retrospective validation study of deidentified Clinical Decision Support (CDS) recommendations generated by the Linus Health Core Cognitive Evaluation (CCE) for patients who have completed the CCE.
- Conditions
- Cognitive Impairment, Motor Disorders, Dementia
- Trial name
- NCT05900310
- Testing
- Core Cognitive Evaluation (CCE)
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Linus Health, Inc.
Anemia in Pregnancy, Pre-eclampsia
A Retrospective Analysis of Neevo® and NeevoDHA® Compared to a Standard Prenatal Vitamin in Anemia During Pregnancy
This study is a multi-site, retrospective chart review to determine the effect of Neevo® or NeevoDHA® (with higher folate and B12) versus standard prenatal vitamins on hemoglobin (Hgb) levels in pregnant women throughout the…
- Trial name
- NCT01193192
- Testing
- Neevo®, Prenatal vitamins
- Where
- 3 sites in United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Pamlab, L.L.C.
Cataract
Retrospective Analysis of the Time Elements for Different Workflow Scenarios During Femtosecond Laser-assisted Cataract Surgery (FLACS) From the Surgeon, Staff, and Patient Perspectives.
This study involves the retrospecitve review of time stamps during surgery to assess the time efficiencies of different workflow scenarios of femtosecond laser-assisted cataract surgery from the surgeon, staff, and patient…
- Trial name
- NCT07038395
- Testing
- workflow
- Where
- United States
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- LensAR Incorporated
Primary Sjögren's Syndrome (pSS)
Artificial Intelligence Based Models for Primary Sjögren's Syndrome Diagnosis
The goal of this observational study is to develop and validate artificial intelligence (AI)-driven models for improving the diagnosis of Primary Sjögren's Syndrome (PSS) using routine laboratory test data.
- Trial name
- NCT06982482
- Where
- China
- Volunteers
- 27,432 people, healthy volunteers welcome
- Sponsor
- The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School
Advanced Non-small-cell Lung Cancer
Multimodality Treatment Including Curative Resection of Advanced NSCLC
This study retrospectively evaluates clinical parameters and outcome of patients with advanced stage non-small cell lung cancer treated with neoadjuvant therapy followed by curative-intent surgery at the Divison of Thoracic…
- Trial name
- NCT04455984
- Testing
- Date collection
- Where
- Austria
- Volunteers
- 190 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna