Clinical trials: Polytetrafluoroethylene
Vascular Surgical Bleeding
Safety and Efficacy Study of Fibrin Sealant Grifols as an Adjunct to Hemostasis During Peripheral Vascular Surgery
The purpose of this study is to demonstrate that the application of Fibrin Sealant Grifols provides a measurable benefit when compared to hemostasis achieved through conventional surgical technique (suture) and by standard…
- Trial name
- NCT01662856
- Testing
- Fibrin Sealant Grifols, Manual Compression
- Where
- 38 sites in United States, Hungary and 2 more
- Volunteers
- 225 people
- Sponsor
- Instituto Grifols, S.A.
Physical Function, Pain
Polypropylene Mesh Versus Polytetrafluoroethylene (PTFE) Mesh in Inguinal Hernia Repair
To evaluate the safety and efficacy of the Lichtenstein's hernioplasty using Infinit® PTFE Mesh, and to compare it with the traditional Lichtenstein procedure performed with polypropylene mesh.
- Conditions
- Physical Function, Pain, Hernia, Wound Infection
- Trial name
- NCT01141335
- Testing
- polypropylene mesh, Infinit® PTFE mesh (WL Gore)
- Where
- Italy
- Volunteers
- 70 people
- Sponsor
- University of Roma La Sapienza
Gastrointestinal Vascular Conditions, Arteriosclerosis
Covered Stents Versus Bare-Metal Stents
To compare the outcome of revascularisation the gastrointestinal arteries using covered stents compared to bare-metal stents in patients with CGI.
- Conditions
- Gastrointestinal Vascular Conditions, Arteriosclerosis, Lifestyle-related Condition, Stenosis
- Trial name
- NCT02428582
- Testing
- Covered stent (Atrium Type V12), Bare stent (Brand Cordis Type Palmaz Blue)
- Where
- Netherlands
- Volunteers
- 84 people
- Sponsor
- Erasmus Medical Center
Ridge Augmentation, Bone Augmentation
Reconstruction of Deficient Atrophic Ridges Using Guide Bone Regeneration Technique
patients will be informed of the nature of the research work and informed consent will be obtained then randomized in 2 groups. Mixture 1:1 autogenous and xenogenic bone covered with Polytetrafluoroethylene membrane control group…
- Trial name
- NCT06746935
- Testing
- Collagen membrane., Polytetrafluoroethylene membrane.
- Where
- Egypt
- Volunteers
- 20 people
- Sponsor
- Cairo University
Immediate Dental Implant Placement, Dental Implant
Influence of Acellular Dermal Matrix on Peri-implant Soft Tissue Phenotype and Marginal Bone Loss
To evaluate soft tissue augmentation using acellular dermal matrix (ADM) over immediately placed dental implants in anterior maxilla.
- Conditions
- Immediate Dental Implant Placement, Dental Implant, Acellular Dermal Matrix, Polytetrafluoroethylene
- Trial name
- ADM (NCT07573020)
- Testing
- Polytetrafluoroethylene coverage, Acellular Dermal Matrix
- Where
- Egypt
- Volunteers
- 16 people
- Sponsor
- Mansoura University
Alveolar Bone Loss, Pathological Conditions, Anatomical
Comparison of Amnion Chorion Membrane vs. Dense Polytetrafluoroethylene Membrane in Ridge Preservation Procedures
The purpose of this study is to examine if a biologically active commercially available amnion chorion membrane (ACM) is as effective as the commercially available inert dense polytetrafluoroethylene membrane (D-PTFE) in…
- Trial name
- NCT02602223
- Testing
- Placing Amnion chorion membrane over grafted site, Placing d-PTFE membrane over grafted site
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Indiana University
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
Kidney Failure, Renal Dialysis
Comparison of Bovine Carotid Artery and Expanded Polytetrafluoroethylene (ePTFE) for Permanent Hemodialysis Access
The investigators did a randomized control trial comparing bovine carotid artery grafts with ePTFE grafts for patients that need hemodialysis access.
- Trial name
- NCT01021839
- Testing
- Grafts placement
- Where
- United States
- Volunteers
- 57 people
- Sponsor
- Massachusetts General Hospital
End Stage Renal Disease, Hemolysis
Bovine Carotid Artery Biologic Graft and Expanded Polytetrafluoroethylene for Permanent Hemodialysis Access
The investigators propose a randomized study to compare bovine carotid artery (BCA) biologic grafts and expanded polytetrafluoroethylene grafts (ePTFE) for permanent hemodialysis access.
- Conditions
- End Stage Renal Disease, Hemolysis, Arteriovenous Graft
- Trial name
- NCT03300024
- Testing
- Expanded polytetrafluoroethylene Graft, Bovine Carotid Artery Graft
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Johns Hopkins University
Gingival Pocket
Gingival Displacement by Polytetrafluoroethylene & Conventional Retraction Cord
To achieve harmony between restoration and surrounding periodontium, soft tissue management plays a pivotal role. Various Gingival displacement techniques show varying results in achieving the goals of displacement.
- Trial name
- NCT04087226
- Testing
- PTFE Retraction Cord
- Where
- Pakistan
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Dow University of Health Sciences
Acute Coronary Syndrome
Comparison of Stent Graft, Sirolimus Stent, and Bare Metal Stent Implanted in Patients With Acute Coronary Syndrome
During the 6-month period 119 patients with acute coronary syndrome, were randomized to either stent graft group (n=40), sirolimus eluting stent group (n=39), or bare metal stent group (n=40).
- Trial name
- NCT00452517
- Testing
- Percutaneous Coronary Intervention
- Where
- Croatia
- Volunteers
- 100 people
- Sponsor
- University of Zagreb
Liver Cirrhoses
Early Use of TIPS With Polytetrafluoroethylene(PTFE) Covered Stents in Cirrhotic Patients With Refractory Ascites
This multicenter RCT is designed to investigate if TIPS with covered stents improves transplant-free survival for cirrhotic patients with early stage of refractory ascites compared to LVP+albumin during 1 year follow-up period.
- Trial name
- NCT03172273
- Testing
- TIPS, paracentesis
- Where
- 2 sites in China
- Volunteers
- 180 people
- Sponsor
- Air Force Military Medical University, China
Bone Regeneration, Dental Implants
Effectiveness of Different Membrane Applications in Vertical Ridge Augmentation
This randomized clinical trial (RCT) study investigates if there is any difference in absolute vertical bone gain between perforated dense-polytetrafluroethylene (d-PTFE) mesh vs perforated d-PTFE mesh covered with a native…
- Conditions
- Bone Regeneration, Dental Implants, Polytetrafluoroethylene
- Trial name
- NCT04843488
- Testing
- Guided bone regeneration with a PTFE membrane, Guided bone regeneration with a PTFE+collagen membrane
- Where
- Hungary
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Urban Regeneration Institute
Alveolar Bone Loss
Efficacy of Customized Zirconia Sheet vs PTFE as a Non-resorbable Barrier in Maxillary Alveolar Ridge Augmentation
The goal of this clinical trial is comparing the efficacy of custom-made zirconia sheet versus Polytetrafluoroethylene as a non-resorbable barrier in maxillary alveolar ridge augmentation.
- Trial name
- NCT06227455
- Testing
- Maxillary alveolar ridge augmentation
- Where
- Egypt
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Delta University for Science and Technology
Edentulous Alveolar Ridge
Clinical Evaluation of Polytetrafluoroethylene (PTFE, MATFILL) for the Sealing of Prosthetic Chimneys.
Dental implant supported screwed prosthetic rehabilitations are associated to several advantages, as a minimal occlusal spaced and easier hygiene and maintenance.
- Trial name
- NCT04543292
- Testing
- MATFILL (PTFE)
- Where
- Spain
- Volunteers
- 4 people
- Sponsor
- Fundación Eduardo Anitua
Post-Extraction Socket Healing, Ridge Preservation
Ridge Preservation Using Guided Regenaration, Platelet-rich Plasma and Free Gingival Grafts
The goal of this clinical trial is to learn if ridge preservation methods with dense polytetrafluoroethylene membranes, with d-PTFE membranes and platelet-rich plasma, and with free gingival grafts can reduce vertical resorption…
- Trial name
- NCT06621498
- Testing
- Ridge preservation technique, ridge preservation
- Where
- Bulgaria
- Volunteers
- 80 people
- Sponsor
- Medical University of Varna
Diabetes Mellitus, Type 1
Extended Wear of a Steel and a Teflon Insulin Infusion Set
This is a cross-over study to evaluate if insulin infusion sets can be used up to 7 days.
- Trial name
- NCT03683368
- Testing
- YpsoPump Orbit soft, YpsoPump Orbit micro
- Where
- Germany
- Volunteers
- 40 people
- Sponsor
- mylife Diabetes Care AG
Alveolar Bone Loss
Composite Plug Vs D-PTFE Membrane in Socket Preservation
The aim of the current study is to compare the effect socket sealing with flowable resin composite compared to dense polytetrafluoroethylene membrane after filling the extraction site with xenograft particles in terms of soft and…
- Trial name
- NCT06315413
- Testing
- Socket preservation using xenograft and composite plug, Socket preservation using xenograft and intentionally exposed d-PTFE
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Cairo University
Hemostasis in Participants Receiving Peripheral Vascular Expanded Polytetrafluoroethylene (ePTFE) Graft Prostheses
FS VH S/D 500 S-apr in Vascular Surgery
The purpose of this study was to compare safety and efficacy of FS VH S/D 500 s-apr (FS) versus manual compression in prosthetic expanded polytetrafluoroethylene (ePTFE) graft placement.
- Trial name
- NCT00892957
- Testing
- Fibrin Sealant, Vapor Heated, Solvent/Detergent-treated with 500 IU/ml thrombin and synthetic aprotinin (FS VH S/D 500 s-apr), Surgical gauze pads
- Where
- 22 sites in United States
- Volunteers
- 176 people
- Sponsor
- Baxter Healthcare Corporation
Breast Cancer Stage I, Breast Cancer Stage II
Ways of Retaining the Inframammary Fold in Implant-based Breast Surgery
There is currently no consensus on the "gold standard" for Implant-based Breast reconstruction. In the United States, more than half of all breast reconstructions are performed using acellular dermal matrix (ADM).
- Conditions
- Breast Cancer Stage I, Breast Cancer Stage II, In Situ Breast Cancer
- Trial name
- NCT06931548
- Testing
- Implant-based breast reconstruction using polytetrafluoroethylene mesh, Implant-based breast reconstruction using Allogeneic dura mater graft
- Where
- Russia
- Volunteers
- 100 people
- Sponsor
- Branch Office of "Hadassah Medical Ltd"