Clinical trials: open to volunteers, in Yemen
Thin Gingival Phenotype
Injectable Platelet-Rich Fibrin and Microneedling With or Without Vitamin C for Gingival Phenotype Augmentation.
This randomized split-mouth clinical trial will evaluate whether adding locally injected vitamin C to injectable platelet-rich fibrin (i-PRF) and microneedling improves gingival tissue thickness and keratinized tissue width in…
- Trial name
- NCT07848035
- Testing
- Microneedling, Injectable Platelet-Rich Fibrin (i-PRF), Vitamin C
- Where
- Yemen
- Volunteers
- 27 people
- Sponsor
- University of Science and Technology, Yemen
Facial Injuries, Pain
Topical Dexamethasone/Diclofenac Hydrogel for Postoperative Pain and Swelling in Facial Soft Tissue Injuries
This randomized, controlled clinical trial will evaluate the clinical effects of a topical thermoresponsive hydrogel containing dexamethasone sodium phosphate and diclofenac sodium on postoperative pain and facial swelling in…
- Conditions
- Facial Injuries, Pain, Swelling
- Trial name
- NCT07853664
- Testing
- Poloxmer F-127 Hydrogel with Dexamethasone/Diclofenac
- Where
- Yemen
- Volunteers
- 52 people
- Sponsor
- Thamar University
Partial Edentulism, Dental Implant Placement
Effect of Advanced PRF and Hyaluronic Acid on Dental Implant Healing
This randomized parallel-group clinical trial aimed to evaluate the clinical efficacy of advanced platelet-rich fibrin (A-PRF) combined with hyaluronic acid (HA) in enhancing peri-implant bone formation in patients undergoing…
- Trial name
- NCT07792720
- Testing
- Delayed Dental Implant Placement, Advanced Platelet-Rich Fibrin (A-PRF), Hyaluronic Acid 1.5%
- Where
- Yemen
- Volunteers
- 30 people
- Sponsor
- Samar Ali Abdu Salamah
Orthodontic Tooth Movement
Acceleration of Tooth Movement Using PRP and Photobiomodulation With Clear Aligners
This study compares the effectiveness of two adjunct therapies- photobiomodulation (low-level laser therapy) (PBM) and localized platelet-rich plasma (PRP) injections in accelerating orthodontic tooth movement.
- Trial name
- NCT07795073
- Testing
- Platelet Rich Plasma (PRP) injection, photobiomodulation (PBM) Therapy, clear aligner(12-hour wear protocol)
- Where
- Yemen
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Sana'a University
Cleft Palate, Unilateral Cleft Palate
Palatoplasty Techniques Using PRF and Gentamicin-Loaded PRF in Cleft Palate
This prospective, randomized controlled trial evaluates the clinical efficacy of autologous Platelet-Rich Fibrin (PRF) and Gentamicin-Loaded PRF as regenerative and antimicrobial biological adjuncts in primary palatoplasty.
- Conditions
- Cleft Palate, Unilateral Cleft Palate, Bilateral Cleft Palate, Complete Cleft Palat
- Trial name
- NCT07752849
- Testing
- Standard palatoplasty ( control), Platelet _ Rich Fibrin ( PRF), gentamicin_ loaded PRF
- Where
- Yemen
- Volunteers
- 90 people
- Sponsor
- Al-Thawra Modern General Hospital
Appendicitis, Surgical Wound Infection
Primary Versus Delayed Wound Closure in Complicated Appendectomy (The HIEDI-Yemen Trial)
The goal of this clinical trial is to compare primary wound closure (PC) versus delayed primary closure (DPC) after standardized wound decontamination using the High-Efficiency Incision and Drainage with Irrigation (HIEDI)…
- Conditions
- Appendicitis, Surgical Wound Infection, Postoperative Complications, Wound Healing
- Trial name
- HIEDI-Yemen (NCT07688109)
- Testing
- Primary Closure with HIEDI, Delayed Primary Closure with HIEDI
- Where
- 3 sites in Yemen
- Volunteers
- 200 people
- Sponsor
- Sana'a University
Hemorrhoids, Postoperative Pain
Oral Nifedipine Versus Placebo for Pain and Healing After Hemorrhoidectomy
The goal of this clinical trial is to evaluate whether oral nifedipine reduces postoperative pain and improves wound healing after hemorrhoidectomy in adult patients aged 18-65 years undergoing elective surgery for grade III or…
- Conditions
- Hemorrhoids, Postoperative Pain, Wound Healing, Analgesia
- Trial name
- NIFEDIPINE-HD (NCT07659665)
- Testing
- Nifedipine 20 Mg
- Where
- Yemen
- Volunteers
- 100 people
- Sponsor
- Sana'a University
Preeclampsia
Vitamin D3 Supplementation Regimens and Preeclampsia Risk
This study is a randomized controlled trial with two parallel groups connected at Al-Thawra Modern General Hospital in Sana'a, Yemen.
- Trial name
- VitD-PE-RCT (NCT07648706)
- Testing
- Vitamin D3
- Where
- Yemen
- Volunteers
- 268 people
- Sponsor
- Sana'a University
Kidney Calculi, Nephrolithiasis
Supine vs. Prone PCNL for Large Renal Stones: A Randomized Trial in Yemen.
The goal of this clinical trial is to compare the safety, cost-effectiveness, and patient recovery of two different surgical positions for percutaneous nephrolithotomy (PCNL) in adults aged 18 to 70 years who have kidney stones…
- Trial name
- NCT07627503
- Testing
- Supine Percutaneous Nephrolithotomy (PCNL), Prone Percutaneous Nephrolithotomy (PCNL)
- Where
- Yemen
- Volunteers
- 140 people
- Sponsor
- Sana'a University
Edentulous Posterior Maxilla, Maxillary Sinus Pneumatization
Graftless TSFE Via Self-tapping Implants
This prospective clinical trial aims to evaluate the efficiency, safety, and reliability of a minimally invasive graftless transcrestal sinus lifting approach with simultaneous dental implant placement in patients with edentulous…
- Conditions
- Edentulous Posterior Maxilla, Maxillary Sinus Pneumatization, Alveolar Bone Atrophy
- Trial name
- G-TSFE (NCT07424742)
- Testing
- Graftless Transcrestal Sinus Membrane Elevation with Simultaneous Implant Placement
- Where
- Yemen
- Volunteers
- 20 people
- Sponsor
- Sana'a University
Skeletal Class II Malocclusion
"Sliding Jigs vs Retraction Hooks for Maxillary Dentition Distalization Using IZC Miniscrews"
This randomized controlled clinical trial aims to compare the clinical efficacy, efficiency, and biomechanical differences between two methods for total maxillary dentition distalization: (1) the use of a Sliding Jig and (2) the…
- Trial name
- SJRH-IZC (NCT07307209)
- Testing
- Sliding jig, retraction hooks
- Where
- Yemen
- Volunteers
- 40 people
- Sponsor
- Sana'a University
Malocclusion; Displaced Teeth
3-D Evaluation of Alveolar Bone Changes and Root Resorption After Traction of Buccally Displaced Maxillary Canines
This clinical study used CBCT images to investigate the alveolar bone changes and root resorption in unilateral buccally displaced maxillary canines and adjacent teeth before and after orthodontic traction of unilateral BDMCs.
- Trial name
- BDMC (NCT07399197)
- Testing
- T-loop, Piggyback double wire
- Where
- Yemen
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Sana'a University
Wisdom Tooth Removal, Post Operative Complications
Comparing Methylprednisolone And Hyaluronic Acid To Reduce Wisdom Tooth Surgery Complications
The goal of this clinical trial is to assess and compare the effectiveness of methylprednisolone and hyaluronic acid (HA), alone and in combination, in managing post-operative complications following the surgical extraction of…
- Conditions
- Wisdom Tooth Removal, Post Operative Complications, Hyaluronic Acid, Methylprednisolone
- Trial name
- NCT07317596
- Testing
- Methyl Prednisolone (MP), Hyaluronic Acid (HA)
- Where
- Yemen
- Volunteers
- 40 people
- Sponsor
- Sana'a University
Odontogenic Cyst, Jaw Cysts
Bone Regeneration Using PRF After Cyst Enucleation
This randomized controlled clinical trial aims to evaluate the clinical efficacy of autologous platelet-rich fibrin (PRF) in promoting osseous regeneration following cystic enucleation in the jaws.
- Conditions
- Odontogenic Cyst, Jaw Cysts, Osseous Defect After Cyst Enucleation
- Trial name
- PRF-Bone (NCT07424716)
- Testing
- Autologous Platelet-Rich Fibrin (PRF), Conventional Surgical Management
- Where
- Yemen
- Volunteers
- 20 people
- Sponsor
- Sana'a University
Periodontitis
Clinical and Immunological Evaluation of HA in Treatment of Periodontitis
To evaluate the immunological effectiveness of Hyaluronic acid as adjunction treatment to scaling and root planning and scaling and root planning alone. Comparison between clinical measurement before and after treatment.
- Trial name
- NCT06324474
- Testing
- Hyaluronic acid, scaling and root planning
- Where
- Yemen
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Sana'a University