Clinical trials: Retreatment, open to volunteers
Endodontic Disease
Postoperative Pain and Incidence of Extrusion Following the Use of Two Intra-canal Medications in Retreatment of Single Rooted Teeth
This study aims to compare the postoperative pain and incidence of extrusion of two intracanal medications in the retreatment of single-rooted teeth.
- Trial name
- NCT06913673
- Testing
- Bio-c Temp, Metapex
- Volunteers
- 30 people
- Sponsor
- Minia University
This Study Will be Performed to Evaluate the Efficiency of 810 nm Diode Laser Disinfection on Periapical Healing in Root Canal Retreatment Cases
The Efficiency of 810 nm Diode Laser on Periapical Healing After Root Canal Retreatment
The main cause of endodontic disorders is microbial infection. From the infected root canal, microorganisms can penetrate into the deeper layers of root dentine and propagate a periapical tissue through the apical foramen and…
- Trial name
- Retreatment (NCT07194837)
- Testing
- diode laser, Calcium Hydroxide (Ca(OH)2)
- Where
- Egypt
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Al-Azhar University
Neuroendocrine Tumors, Intestinal Well Differentiated Endocrine Tumor
Assessment of Retreatment With Lutathera® in Patients With New Progression of Intestinal Well-differenciated NET
In France, since the reimbursement of Lutathera®, this treatment is allowed for retreatment if patients still fulfill the criteria of its indication and 4 news cycles could be proposed.
- Conditions
- Neuroendocrine Tumors, Intestinal Well Differentiated Endocrine Tumor, Progressive Disease
- Trial name
- ReLUTH (NCT04954820)
- Testing
- Lutathera
- Where
- 28 sites in France
- Volunteers
- 146 people
- Sponsor
- Institut du Cancer de Montpellier - Val d'Aurelle
Intervention Studies, ASA Physical Status I
Biological, Radiographic and Clinical Evaluation of Various Inter-Visit Root Canal Dressings in Retreatment Cases
The aim of this clinical trial is to evaluate anti-inflammatory effect of various intracanal medications: 1. Calcium Hydroxide Slurry mixed with 3% Sodium Hypochlorite 2. Calcium Silicate 3.
- Conditions
- Intervention Studies, ASA Physical Status I, Intracanal Medication, Periapical Abscess
- Trial name
- RCT (NCT07641933)
- Testing
- Calcium Silicate Intracanal Medication, Calcium Hydroxide Slurry mixed with Sodium Hypochlorite Intracanal Medication, Calcium Hydroxide (Ca(OH)2) Intracanal Medication
- Where
- Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Metastatic Digestive System Neuroendocrine Tumor G1, Metastatic Digestive System Neuroendocrine Tumor G2
Comparing Retreatment of 177Lu-DOTATATE PRRT Versus the Usual Treatment in Patients With Metastatic Unresectable Gastroenteropancreatic Neuroendocrine Tumors, NET RETREAT Trial
This phase II trial compares the effect of retreatment with 177Lu-DOTATATE peptide receptor radionuclide therapy (PRRT) to the usual approach of treatment with everolimus, sunitinib, or cabozantinib in patients who have…
- Conditions
- Metastatic Digestive System Neuroendocrine Tumor G1, Metastatic Digestive System Neuroendocrine Tumor G2, Unresectable Digestive System Neuroendocrine Tumor G1, Unresectable Digestive System Neuroendocrine Tumor G2
- Trial name
- NCT05773274
- Testing
- Biospecimen Collection, Cabozantinib, Computed Tomography
- Where
- 42 sites in United States, Canada
- Volunteers
- 100 people
- Sponsor
- National Cancer Institute (NCI)
Islet Transplantation
Islet Transplantation With Recipient T-Reg Cells or Deceased Donor Vertebral Bone Marrow Therapy
The goal of this clinical trial is to learn if patients who have brittle type 1 diabetes receiving an islet transplantation will have better control of their sugars if they also receive one of 2 types of immune cells along with…
- Trial name
- NCT05973734
- Testing
- Infusion of recipient T regulatory cell, Infusion of concomitant Donor Derived Vertebral Bone Marrow
- Where
- United States
- Volunteers
- 24 people
- Sponsor
- Stanford University
Endodontic Retreatment, Non-surgical Retreatment
Development and Validation of a Deep Learning Model to Predict Endodontic Retreatment Difficulty From Periapical Radiographs
The aim of this study is to develop and evaluate an artificial intelligence-based model capable of analyzing periapical radiographs of maxillary and mandibular molars to predict the difficulty level of non-surgical root canal…
- Conditions
- Endodontic Retreatment, Non-surgical Retreatment, Endodontics, AI (Artificial Intelligence)
- Trial name
- Ai Retreatment (NCT07611279)
- Testing
- Deep Learning Model to Predict Endodontic Retreatment Difficulty from Periapical Radiographs
- Volunteers
- 123 people
- Sponsor
- Cairo University
Recurrent Respiratory Papillomatosis, Papillomavirus Infection
Zopa Retreatment and Vector Shedding in Adults With RRP
This open-label study evaluates safety, vector shedding, and retreatment efficacy of Zopapogene imadenovec (Zopa) in adults with recurrent respiratory papillomatosis (RRP).
- Conditions
- Recurrent Respiratory Papillomatosis, Papillomavirus Infection, Papillomaviridae
- Trial name
- NCT06538480
- Testing
- Zopapogene imadenovec (Zopa)
- Where
- 3 sites in United States
- Volunteers
- 30 people
- Sponsor
- Precigen, Inc
Rheumatoid Arthritis (RA)
Prospective Validation of a Pharmacological Biomarker for Low-Dose Rituximab in Rheumatoid Arthritis
Evaluation of the prediction of clinical response to rituximab at a dose of 1000 mg once using a pharmacological model including several pharmacokinetic and pharmacodynamic parameters.
- Trial name
- PROLOD-RA (NCT06933134)
- Where
- France
- Volunteers
- 30 people
- Sponsor
- University Hospital, Tours
Endodontic Inflammation
Evaluation of the Effect of Different Irrigation Activation Methods During Endodontic Retreatment
The persistent and secondary intraradicular infections are the primary causes of post-treatment disease following endodontic treatment of any tooth.
- Trial name
- NCT07779148
- Testing
- Xp Finisher R file
- Where
- Egypt
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Minia University
Periapical Periodontitis, Pulpitis
Clinical and Radiographic Evaluation of Primary Endodontic Treatment and Non-surgical Endodontic Retreatments
Background: Pulpitis and apical periodontitis are inflammatory conditions of the dental pulp and periapical tissues, primarily caused by microbial invasion.
- Trial name
- CR-ET (NCT07418840)
- Testing
- Root canal treatment and non surgical endodontic retreatment
- Volunteers
- 75 people
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Liver Metastases
Tissue Analysis After Tumor Ablation for Liver Metastases Leading to Immediate Retreatment
This study will see whether collecting and analyzing needle biopsy samples from cancer liver metastases after a tumor ablation procedure will be able to identify cancer cells that are still alive.
- Trial name
- NCT04143516
- Testing
- [18-F]- FDG - PET, Tumor ablation (TA), PET/CT Scan
- Where
- United States
- Volunteers
- 200 people
- Sponsor
- Memorial Sloan Kettering Cancer Center
Asymptomatic Apical Periodontitis, Endodontic Retreatment
Cryotherapy, PGE2, NGF Levels and Pain After Endodontic Retreatment
This prospective, randomized, controlled, single-blind, parallel-group clinical trial evaluates whether intracanal cryotherapy reduces postoperative pain and inflammatory biomarker levels following single-visit endodontic…
- Conditions
- Asymptomatic Apical Periodontitis, Endodontic Retreatment, Cryotherapy
- Trial name
- ICE-PAIN (NCT07733700)
- Testing
- Intracanal cryotherapy, Room-temperature saline irrigation
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people
- Sponsor
- Alanya Alaaddin Keykubat University
Gastric Cancer, Gastroesophageal Junction Cancer, Immune Checkpoint Inhibitors (ICIs)
Immune Checkpoint Inhibitors (ICIs) Retreatment in Second-line Treatment of Advanced Gastric Cancer: a Retrospective, Real-world Study
This is a single-center, retrospective, observational, real-world study. We collected general and clinical data of patients with advanced gastric cancer who were admitted to the First Affiliated Hospital of Zhengzhou University…
- Conditions
- Gastric Cancer, Gastroesophageal Junction Cancer, Immune Checkpoint Inhibitors (ICIs), Second-line, Retreatment
- Trial name
- NCT06814548
- Testing
- ICIs(Immune checkpoint inhibitors)
- Volunteers
- 200 people
- Sponsor
- Yongxu Jia
Retreatment
Effect of Different Apex Locators on Postoperative Pain in Endodontic Retreatment of Single-Rooted Teeth: Prospective Randomized Clinical Study
Nonsurgical endodontic retreatment is a vital procedure that promotes periapical healing by eliminating previous root canal fillings, necrotic tissue, and residual microorganisms, thanks to the comprehensive cleaning of the root…
- Trial name
- NCT06964490
- Testing
- determination of working length
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Ipek Eraslan Akyuz
Chronic Hepatitis B
A Follow-up Study of Peginterferon Alfa-2b Combined With TDF in Patients With Chronic Hepatitis B
Studies have shown that chronic hepatitis B patients with low levels of HBsAg after nucleos(t)ide analog therapy have a higher chance of functional cure with sequential or combined pegylated interferon therapy, with about 30-50%…
- Trial name
- NCT06707922
- Testing
- Peginterferon α-2b Injection; Tenofovir Alafenamide Fumarate
- Where
- 30 sites in China
- Volunteers
- 350 people
- Sponsor
- Xiamen Amoytop Biotech Co., Ltd.
Advanced Breast Cancer, Metastatic Breast Cancer
T-DXd Based Therapy Followed by Endocrine Therapy Plus Dual HER2 Blockade in First-line HER2+/ HR+ Metastatic Breast Cancer and Retreatment With T-DXd
This study will evaluate a structured sequential treatment strategy starting with T-DXd + pertuzumab upfront therapy, followed by an optimized maintenance therapy with dual HER2+blockade + CDK4/6i + ET and the opportunity to…
- Conditions
- Advanced Breast Cancer, Metastatic Breast Cancer, HER2 Positive, HR Positive
- Trial name
- DB-Guide (NCT07683754)
- Testing
- Trastuzumab deruxtecan, Trastuzumab, Pertuzumab
- Where
- 5 sites in United States
- Volunteers
- 200 people
- Sponsor
- Daiichi Sankyo
Colorectal Cancer, Colorectal Liver Metastases
Adjuvant FOLFIRI Based-chemotherapy After Resection of CLM Responding to Preoperative FOLFIRI
Eligible patients are patients with contraindication to preoperative oxaliplatin based-chemotherapy who underwent resection of no more than 10 colorectal liver metastases after preoperative FOLFIRI based chemotherapy with or…
- Trial name
- IRIMAD (NCT06501482)
- Testing
- Postoperative reintroduction of FOLFIRI based chemotherapy
- Where
- France
- Volunteers
- 254 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Post Operative Pain
Efficacy of a Novel Nanoparticle -Augmented Disinfection Protocol
The ultimate biological aim of endodontic therapy is to either prevent or heal apical periodontitis. Root canal treatment can fail for various reasons, such as persistent infection, missing canals, ledges, canal transportation…
- Trial name
- NCT07800403
- Testing
- Novel Nanoparticle
- Where
- Egypt
- Volunteers
- 28 people
- Sponsor
- Minia University
Endodontic Disease, Endodontically Treated Teeth
Outcome of Endodontic Retreatment in One or Two Visits
This study is a prospective randomized controlled study of patients who come to the University and non-surgical root canal retreatment is considered as the election of choice in presence of periapical disease.
- Conditions
- Endodontic Disease, Endodontically Treated Teeth, Root Canal Infection
- Trial name
- NCT04527705
- Testing
- Non-surgical root canal retreatment
- Where
- Spain
- Volunteers
- 110 people
- Sponsor
- Universitat Internacional de Catalunya