Efficacy of various hemostatic agents in relieving post-extraction pain in warfarin patients

ISRCTN ISRCTN71901901
DOI https://doi.org/10.1186/ISRCTN71901901
Secondary identifying numbers Funder No. 501100020595
Submission date
28/12/2023
Registration date
29/12/2023
Last edited
09/08/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Oral Health
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
Getting a tooth pulled is a common dental procedure, but it can lead to issues like pain, inflammation, and infection. Dentists aim to prevent these complications. Pain after a tooth extraction is often the main problem, affecting a person's quality of life, especially in the first few days. It's crucial to find ways to ease pain and improve a patient's quality of life during the recovery period. The formation of a blood clot is vital for healing because it triggers the necessary immune response. If the clot is dislodged, healing can be delayed and very painful, especially in the first hours after extraction.

This study explores the use of a gelatin-based hemostatic agent called Gelfoam, introduced in 1945, and tranexamic acid (TXA), a known anti-bleeding agent. TXA helps form a stable blood clot in the extraction site when applied topically, minimizing systemic effects. Warfarin, an anticoagulant drug, poses challenges for patients needing tooth extraction, as it may result in uncontrollable bleeding and postoperative pain. The research compares the effectiveness of TXA-soaked Gelfoam and Gelfoam soaked in saline solution in reducing postoperative pain in warfarin patients undergoing tooth extraction.

Who can participate?
1. Patients taking warfarin.
2. International Normalized Ratio (INR) ranges between 2.0 to 3.5.
3. Patients aged 45-70 years.
4. Patients requiring bilateral simple extraction of mandibular teeth.

What does the study involve?
This study was a thorough and rigorous clinical trial employing a randomized, triple-blinded, multicenter, split-mouth design with an active control group. Thirty patients meeting specific criteria were enrolled, and a total of 60 lower jaw teeth slated for simple extraction were included. The patients were randomly assigned to two groups for post-extraction treatment:
Control Group (Group 1):
- Hemostatic agent used: Gelfoam sponge (SURGISPON®, Aegis Lifesciences, Gujarat, India) soaked in sterile saline solution (SODIUM CHLORIDE 0.9% MIAMED, Miamed Pharmaceutical Industry, Damascus, Syria) (n = 30)
2. Study Group (Group 2):
- Hemostatic agent used: TXA-soaked absorbable Gelfoam (TXA-Gel) (Trenekop, Kopran Ltd, Haryana, India) (n = 30)

The trial was triple-blinded, meaning the investigator, participants, and outcome assessor were unaware of the treatment assignment. Randomization was performed using a simple coin flip. The patients' baseline information, medical and dental histories were documented, and clinical and radiological examinations were conducted. The International Normalized Ratio (INR) level was assessed before extraction to ensure it was suitable for minor surgery. Local anesthesia was administered, and bilateral tooth extraction was performed with minimal trauma by a skilled surgeon, adhering to asepsis and antisepsis principles. After extraction, Gelfoam soaked in tranexamic acid was applied in the study group, while Gelfoam soaked in saline solution was applied in the control group. Sockets were closed using a figure-of-8 suturing technique with 3.0 silk sutures.

What are the possible benefits and risks of participating?
The possible benefit is the extraction of non-restorable and infected teeth. The possible risk is postoperative pain due to the questionable effect of the involved materials.

Where is the study run from?
Damascus University (Syria)

When is the study starting and how long is it expected to run for?
November 2021 to October 2023

Who is funding the study?
Damascus University (Syria)

Who is the main contact?
Dr Mawia Karkoutly, Mawiamaherkarkoutly@hotmail.com

Contact information

Dr Mawia Karkoutly
Public, Scientific, Principal Investigator

Mazzeh Highway
Damascus
-
Syria

ORCiD logoORCID ID 0000-0003-0227-1560
Phone +963 992647528
Email mawia95.karkoutly@damascusuniversity.edu.sy

Study information

Study designRandomized triple-blinded multicenter split-mouth active-controlled clinical trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Dental clinic
Study typeTreatment
Participant information sheet No participant information sheet available
Scientific titleEfficacy of topical tranexamic acid soaked absorbable Gelfoam in relieving post-extraction pain in warfarin patients: A randomized, triple-blinded, multicenter, split-mouth, active-controlled clinical trial
Study objectivesThe null hypothesis was that no statistically significant difference would be noted in the efficacy of the topical application of TXA-soaked absorbable Gelfoam (TXA-Gel) and Gelfoam sponge soaked in sterile saline solution in relieving postoperative pain following bilateral simple extraction of mandibular teeth in warfarin patients.
Ethics approval(s)

Approved 08/11/2021, The Biomedical Research Ethics Committee (Mazzeh Highway, Damascus, -, Syria; +963 (11) 33923223; dean.dent@damascusuniversity.edu.sy), ref: N4041

Health condition(s) or problem(s) studiedRelieving postoperative pain following simple extraction of mandibular teeth in warfarin patients
InterventionThis was a randomized, triple-blinded, multicenter, split-mouth, active-controlled clinical trial.
Based on the inclusion criteria, 30 patients were recruited. 60 bilateral mandibular teeth which were indicated for simple extraction in 30 patients randomly assigned into two groups according to the topical hemostatic agents after extraction used:
Group 1: control group, Gelfoam sponge (SURGISPON®, Aegis Lifesciences, Gujarat, India) soaked in sterile saline solution (SODIUM CHLORIDE 0.9% MIAMED, Miamed Pharmaceutical Industry, Damascus, Syria) (n = 30)
Group 2: TXA-soaked absorbable Gelfoam (TXA-Gel) (Trenekop, Kopran Ltd, Haryana, India) (n = 30)
This was a triple-blinded trial, where the investigator, the study participants, and the outcome assessor were blinded to the treatment allocation. A simple randomization method was performed by flipping a coin.
The patient’s baseline demographic data and their medical and dental history were recorded. The clinical and radiological examination was performed, and the level of the INR was determined before dental extraction using a self-testing instrument (CoaguChek® XS system, Roche Diagnostics, Indiana, USA) to ensure that it is at the appropriate level for minor surgery. Local anesthesia was administered at the site of extraction by depositing 2% lidocaine with epinephrine 1:80,000 solution (2% Lidocaine HCL Injection, Huons Co., Ltd, Seongnam, Korea) using a dental carpule syringe (Dental carpule syringe, Dental Laboratorio, Guangdong, China) and a 27-gauge x ¾ inch needle (Disposable Dental Needles, J Morita, Connecticut, United States). Bilateral extraction was carried out with the least possible trauma by a single experienced surgeon at the same appointment. Extraction was performed according to asepsis and antisepsis rules. The sockets were thoroughly irrigated and rinsed to remove follicular tissue and debris after extraction. A Gelfoam sponge sized (10x10x10 mm) was soaked in tranexamic acid (500mg/5mL) and then applied immediately after extraction in the sockets of the study group. A Gelfoam sponge soaked in sterile saline solution was also applied immediately after extraction in the sockets of the control group. Sockets closed by performing figure-of-8 suturing technique using 3.0 silk sutures (TUDOR® DVR-4942, Champion Biotech & Pharma Corp., Manila, Philippines).
Intervention typeProcedure/Surgery
Primary outcome measureThe intensity of pain was evaluated on the 1st (t1), 2nd (t2), 3rd (t3), 4th (t4), 5th (t5), 6th (t6), and 7th (t7) day following extraction and hemostatic agents application using Visual Analogue Scale (VAS)
Secondary outcome measuresThere are no secondary outcome measures.
Overall study start date01/11/2021
Completion date25/10/2023

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit45 Years
Upper age limit70 Years
SexBoth
Target number of participants30
Total final enrolment30
Key inclusion criteria1. Patients taking warfarin.
2. International Normalized Ratio (INR) ranges between 2.0 to 3.5.
3. Patients aged 45-70 years.
4. Patients requiring bilateral simple extraction of mandibular teeth.
Key exclusion criteria1. Smoking patients.
2. Patients with coagulopathies.
3. Patients with uncontrolled diabetes mellitus.
4. Patients are allergic to any anesthetic agent.
5. Patients with temporomandibular joint disorders.
Date of first enrolment13/01/2023
Date of final enrolment05/10/2023

Locations

Countries of recruitment

  • Syria

Study participating centre

Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Damascus University
Mazzeh Highway
Damascus
-
Syria

Sponsor information

Damascus University
University/education

Mazzeh Highway
Damascus
-
Syria

Phone +963 (11) 33923223
Email dean.dent@damascusuniversity.edu.sy
Website http://www.damascusuniversity.edu.sy
ROR logo "ROR" https://ror.org/03m098d13

Funders

Funder type

University/education

Damascus University
Government organisation / Universities (academic only)
Alternative name(s)
University of Damascus, جَامِعَةُ دِمَشْقَ, DU
Location
Syria

Results and Publications

Intention to publish date28/03/2024
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journa
IPD sharing planThe datasets generated during and/or analysed during the current study will be available upon request from Dr Mawia Karkoutly, Mawiamaherkarkoutly@hotmail.com. The type of data that will be shared is currently not known. The timing for availability is upon a reasonable request. Informed consent was obtained.

Comments on data anonymization: N/A
Any ethical or legal restrictions: N/A
Any additional comments: N/A

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol file 29/12/2023 No No
Results article 07/08/2024 09/08/2024 Yes No

Additional files

44812 Protocol.pdf

Editorial Notes

08/08/2024: Publication reference and total final enrolment added.
29/12/2023: Trial's existence confirmed by Damascus University