Chronic PeriodontitisPhase 4NCT07634341
Clinical and Radiographic Evaluation of Doxycycline and Atorvastatin Loaded Chitosan Nanoparticles as an Adjunctive to Scaling and Root Planning in the Management of Chronic Periodontitis. A Randomized Controlled Clinical Trial.
A Phase 4 study testing Doxycycline and Atorvastatin loaded Chitosan nanoparticles local drug in people with Chronic Periodontitis, run by Fayoum University at 1 site in Egypt.
Trial summary
Chronic periodontitis is one of the most prevalent inflammatory diseases affecting the tooth-supporting structures and is characterized by progressive clinical attachment loss and alveolar bone resorption resulting from a complex interaction between pathogenic microorganisms and the host inflammatory and immune… Read more about this study
- Who is it for?
- Ages 25 years and older
- Conditions the study is for
- Chronic Periodontitis
- What is being tested?
- Doxycycline and Atorvastatin loaded Chitosan nanoparticles local drug
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 80 participants
- Where
- 1 siteEgypt
- Study dates
- Jun 2026to Dec 2027
- Phase
- Phase 4
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 25 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- In order for patients to be considered in the study, they must meet the following criteria: 1) they should have stage II and stage III periodontitis 2) Patients' age range equal or more than 25 years old .
Who cannot join
- Patients with any systemic condition that may affect periodontal health and bone formation, such as; those who are pregnant, nursing, or postmenopausal women; DM, CVD, metabolic syndrome, osteoporosis, AIDS and chronic alcoholism .
- 2) Patients having local factors that may aggravate and predispose for periodontal diseases such as; orthodontic and prosthetic appliances and parafunctional habits 3)smoking (A patient was classified as a current smoker if they smoked more than 10 cigarettes per day regularly for a minimum period of 5 years) 4) Individuals on systemic drug affecting metabolic bone diseases , Medications taken for the treatment of arthritis and psychotropic and epileptic disorders, as well as anticoagulants, antacids, bisphosphonates, corticosteroids, and antineoplastic drugs, can profoundly affect bone metabolism
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
About this study
Official title: Clinical and Radiographic Evaluation of Doxycycline and Atorvastatin Loaded Chitosan Nanoparticles as an Adjunctive to Scaling and Root Planning in the Management of Chronic Periodontitis: A Randomized Controlled Clinical Trial.
Chronic periodontitis is one of the most prevalent inflammatory diseases affecting the tooth-supporting structures and is characterized by progressive clinical attachment loss and alveolar bone resorption resulting from a complex interaction between pathogenic microorganisms and the host inflammatory and immune responses. If left untreated, the disease may ultimately lead to tooth loss and negatively affect oral health and quality of life.
Scaling and root planing (SRP) is considered the gold-standard non-surgical treatment for chronic periodontitis. It aims to remove dental plaque and calculus deposits and reduce the subgingival bacterial load. Although SRP has demonstrated significant clinical benefits, its effectiveness may be limited in certain situations, particularly in deep periodontal pockets and anatomically complex areas that are difficult to access. Therefore, adjunctive therapeutic approaches have been investigated to enhance treatment outcomes and improve long-term periodontal stability.
Read more
In recent years, local drug delivery systems have gained considerable attention in periodontal therapy due to their ability to provide high therapeutic concentrations directly at the site of infection while minimizing systemic adverse effects. Chitosan has emerged as a promising biomaterial for this purpose because of its excellent biocompatibility, biodegradability, antimicrobial properties, and its ability to form nanoparticles capable of sustained and controlled drug release within periodontal pockets.
Doxycycline is widely used in periodontal treatment because of its antimicrobial activity against periodontal pathogens as well as its ability to inhibit matrix metalloproteinases (MMPs), which play a key role in connective tissue destruction and alveolar bone loss. Furthermore, recent studies have demonstrated that atorvastatin, beyond its well-known lipid-lowering effects, possesses anti-inflammatory, immunomodulatory, and osteogenic properties that may contribute to periodontal tissue regeneration and improved clinical outcomes.
The research problem arises from the limited effectiveness of scaling and root planing alone in some cases of chronic periodontitis and the need for innovative adjunctive therapies that combine antimicrobial, anti-inflammatory, and bone regenerative effects. Therefore, evaluating the therapeutic potential of chitosan nanoparticles loaded with doxycycline and atorvastatin may provide a novel and effective approach for periodontal treatment.
The aim of this study is to clinically and radiographically evaluate the effectiveness of chitosan nanoparticles loaded with doxycycline and atorvastatin as an adjunct to scaling and root planing in patients with chronic periodontitis. Clinical outcomes, including probing pocket depth (PPD), clinical attachment level (CAL), plaque index (PI), and bleeding on probing (BOP), as well as radiographic changes in alveolar bone levels, will be assessed and compared with conventional treatment outcomes. The findings of this study may contribute to the development of a more effective and biologically targeted therapeutic strategy for the management of chronic periodontitis.
Read the detailed description
Chronic periodontitis is one of the most prevalent inflammatory diseases affecting the tooth-supporting structures and is characterized by progressive clinical attachment loss and alveolar bone resorption resulting from a complex interaction between pathogenic microorganisms and the host inflammatory and immune responses. If left untreated, the disease may ultimately lead to tooth loss and negatively affect oral health and quality of life.
Scaling and root planing (SRP) is considered the gold-standard non-surgical treatment for chronic periodontitis. It aims to remove dental plaque and calculus deposits and reduce the subgingival bacterial load. Although SRP has demonstrated significant clinical benefits, its effectiveness may be limited in certain situations, particularly in deep periodontal pockets and anatomically complex areas that are difficult to access. Therefore, adjunctive therapeutic approaches have been investigated to enhance treatment outcomes and improve long-term periodontal stability.
In recent years, local drug delivery systems have gained considerable attention in periodontal therapy due to their ability to provide high therapeutic concentrations directly at the site of infection while minimizing systemic adverse effects. Chitosan has emerged as a promising biomaterial for this purpose because of its excellent biocompatibility, biodegradability, antimicrobial properties, and its ability to form nanoparticles capable of sustained and controlled drug release within periodontal pockets.
Doxycycline is widely used in periodontal treatment because of its antimicrobial activity against periodontal pathogens as well as its ability to inhibit matrix metalloproteinases (MMPs), which play a key role in connective tissue destruction and alveolar bone loss. Furthermore, recent studies have demonstrated that atorvastatin, beyond its well-known lipid-lowering effects, possesses anti-inflammatory, immunomodulatory, and osteogenic properties that may contribute to periodontal tissue regeneration and improved clinical outcomes.
The research problem arises from the limited effectiveness of scaling and root planing alone in some cases of chronic periodontitis and the need for innovative adjunctive therapies that combine antimicrobial, anti-inflammatory, and bone regenerative effects. Therefore, evaluating the therapeutic potential of chitosan nanoparticles loaded with doxycycline and atorvastatin may provide a novel and effective approach for periodontal treatment.
The aim of this study is to clinically and radiographically evaluate the effectiveness of chitosan nanoparticles loaded with doxycycline and atorvastatin as an adjunct to scaling and root planing in patients with chronic periodontitis. Clinical outcomes, including probing pocket depth (PPD), clinical attachment level (CAL), plaque index (PI), and bleeding on probing (BOP), as well as radiographic changes in alveolar bone levels, will be assessed and compared with conventional treatment outcomes. The findings of this study may contribute to the development of a more effective and biologically targeted therapeutic strategy for the management of chronic periodontitis.
- Conditions
- Chronic Periodontitis
- Being tested
- Doxycycline and Atorvastatin loaded Chitosan nanoparticles local drug
- Keywords
- deep periodontal pocket local drug Doxycycline Atorvastatin
- Medical subject headings
- Chronic Periodontitis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Doxycycline and Atorvastatin loaded Chitosan nanoparticles local drugDrug
the group will receive the local drug using a blunt cannula syringe (26 gauge), injecting 0.1 mL of the prepared drug gel into the periodontal pocket (one per patient). After delivery, the gel will become more viscous and occluded the pockets, thus eliminating the need for placing periodontal dressing. After LDD, patients will be instructed to avoid chewing on sticky/hard foodstuff or using toothbrush/interdental aids near the treated areas for 1 week. All patients will receive the same postoperative instructions, and no mouthwashes or antibiotics will be prescribed after treatment.
| Study group | Role | What they receive |
|---|---|---|
| only scaling and root planning | No intervention | patients will complete thorough full-mouth scaling and root planning (SRP), including the upper and lower jaws. Under local anaesthesia, subgingival debridement will be achieved using periodontal Gracey curettes and an ultrasonic scaler |
| local drug after scaling and root planning | Active comparator | the group will go through the phase 1 therapy then will receive the local drug using a blunt cannula syringe (26 gauge), injecting 0.1 mL of the prepared drug gel into the periodontal pocket (one per patient). After delivery, the gel will become more viscous and occluded the pockets, thus eliminating the need for placing periodontal dressing. After LDD, patients will be instructed to avoid chewing on sticky/hard foodstuff or using toothbrush/interdental aids near the treated areas for 1 week. All patients will receive the same postoperative instructions, and no mouthwashes or antibiotics will be prescribed after treatment. Receives: Drug: Doxycycline and Atorvastatin loaded Chitosan nanoparticles local drug |
What is being measured
The primary outcome is the main question the study is designed to answer.
Reduction in periodontal parameters
Reduction in periodontal parameters including Probing pocket depth PPD (in mm), Clinical attachment level CAL (in mm)
Measured: From enrollment to the end of treatment at 6 months
Secondary outcomes (4)
Reduction in bleeding on probing
It is measured at multiple sites per tooth and expressed as a percentage: the number of bleeding sites divided by the total number of sites probed, multiplied by 100.
Measured: from enrollment to 6 months
Reduction in gingival index
It is measured by assessing redness, swelling, and bleeding, with a score of 0 being normal, 1 being mild inflammation, 2 for moderate inflammation, and 3 for severe inflammation.
Measured: from enrollment to 6 months
Reduction in plaque index
Scoring: Based on the amount of plaque, each tooth or specific tooth surfaces are given a score from 0 to 5. A common scoring system is as follows:
- 0: No plaque
- 1: A thin, continuous band of plaque (up to 1 mm) at the cervical margin
- 2: Plaque is present in a band wider than 1 mm but covers less than one-third of the tooth's surface
- 3: Plaque covers at least one-third but less than two-thirds of the tooth's surface
- 4: Plaque covers two-thirds or more of the tooth's surface Calculating the index: The scores from individual teeth are then used to calculate an overall plaque index for the entire mouth.
Measured: from enrollment to 6 months
Radiographic improvement :
Pre apical radiograph by parallel technique will be done in the first visit and it will be retaken after 6 months with the same technique .then , the image will be subtracted digitally .
Measured: from enrollment to 6 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Jun 2026
- Study startJun 2026 (estimated)
- Primary completionJun 2027 (estimated)
- Study completionDec 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (28)Papers the sponsor has linked to this study.
- Other trials for Chronic PeriodontitisStudies of the same condition, open and under way.
- More trials run by Fayoum UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 80 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Fayoum University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Amal Mohamed Ali Abelgwad, Fayoum University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07634341
- Sponsor's protocol ID
- FAY-DC,AV LOADED CS PERIO RCT
- Status last verified
- Jun 2026
- First submitted
- 3 Jun 2026
- Last updated
- 8 Jun 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Calvo P, Remunan-Lopez C, Vila-Jato JL, Alonso MJ. Chitosan and chitosan/ethylene oxide-propylene oxide block copolymer nanoparticles as novel carriers for proteins and vaccines. Pharm Res. 1997 Oct;14(10):1431-6. doi: 10.1023/a:1012128907225.
PubMed 9358557Goodman SB, Jiranek W, Petrow E, Yasko AW. The effects of medications on bone. J Am Acad Orthop Surg. 2007 Aug;15(8):450-60. doi: 10.5435/00124635-200708000-00002.
PubMed 17664365Nicotine involved in periodontal disease through influence on cytokine profile in gingival crevicular fluid. Kamma, J. J., Giannopoulou, C., Vasdekis, V. G., & Mombelli, A. (2004). FEMS Immunology & Medical Microbiology, 52(2), 282-290. https://doi.org/10.1016/j.femspd.2004.03.008
Alfuriji S, Alhazmi N, Alhamlan N, Al-Ehaideb A, Alruwaithi M, Alkatheeri N, Geevarghese A. The effect of orthodontic therapy on periodontal health: a review of the literature. Int J Dent. 2014;2014:585048. doi: 10.1155/2014/585048. Epub 2014 May 29.
PubMed 24991214Albandar JM. Global risk factors and risk indicators for periodontal diseases. Periodontol 2000. 2002;29:177-206. doi: 10.1034/j.1600-0757.2002.290109.x. No abstract available.
PubMed 12102708Ashokan DB, Shekar MK, Dharani K, Mani E, Pampani P, Ravichandran B. Clinical evaluation of photobiomodulation therapy and local 1.2% atorvastatin gel as an adjunct to subgingival instrumentation in patients with stage II periodontitis: a randomized controlled trial. Quintessence Int. 2025 Jul 21;56(7):514-527. doi: 10.3290/j.qi.b6218534.
PubMed 40377185Tonetti MS, Greenwell H, Kornman KS. Staging and grading of periodontitis: Framework and proposal of a new classification and case definition. J Clin Periodontol. 2018 Jun;45 Suppl 20:S149-S161. doi: 10.1111/jcpe.12945.
PubMed 29926495Yıldırım, Y., Kaya, S., & Demirci, T. (2023). Doxycycline- and atorvastatin-loaded chitosan nanoparticles as a local drug delivery system for periodontitis therapy: In vitro evaluation of antimicrobial activity and release profile. Journal of Drug Delivery Science and Technology, 78, 104145. https://doi.org/10.1016/j.jddst.2023.104145
Madi, M., El-Din, S. A., & Elsaka, S. (2018). Evaluation of chitosan-doxycycline gel as a local drug delivery system in periodontal therapy. Journal of Periodontal Research, 53(5), 714-723. https://doi.org/10.1111/jre.12550
Özdoğan, A. I. (2018). Local delivery of atorvastatin with chitosan gels enhances anti-inflammatory effects and periodontal tissue healing in experimental periodontitis. Drug Delivery, 25(1), 1353-1362. https://doi.org/10.1080/10717544.2018.1507060
) Rinaudo, M., Pavlov, G., & Desbrieres, J. (2006). Influence of the degree of deacetylation on some physico-chemical properties of chitosan films. Polymer, 47(25), 7201-7208. https://doi.org/10.1016/j.polymer.2006.09.027
Petit, C., Layrolle, P., & Guicheux, J. (2019). Local delivery of statins in periodontal therapy: Clinical outcomes and mechanisms of action. Journal of Clinical Periodontology, 46(10), 1012-1024. https://doi.org/10.1111/jcpe.13190
Zeiser, R., Bonig, H., & Henschler, R. (2018). Immunomodulatory effects of statins. Frontiers in Immunology, 9, 2864. https://doi.org/10.3389/fimmu.2018.02864
Zhou, H., & Xie, Y. (2017). The role of statins in bone metabolism and periodontal health: A review. Drug Design, Development and Therapy, 11, 2157-2167. https://doi.org/10.2147/DDDT.S136488
Goldstein JL, Brown MS. Regulation of the mevalonate pathway. Nature. 1990 Feb 1;343(6257):425-30. doi: 10.1038/343425a0.
PubMed 1967820
Study at a glance
From the registry record, last updated by the sponsor on 8 Jun 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Clinical and Radiographic Evaluation of Doxycycline and Atorvastatin Loaded Chitosan Nanoparticles as an Adjunctive to Scaling and Root Planning in the Management of Chronic Periodontitis: A Randomized Controlled Clinical Trial.
- ClinicalTrials.gov ID
- NCT07634341
- Acronym / sponsor ID
- FAY-DC,AV LOADED CS PERIO RCT
- Conditions
- Chronic Periodontitis
- Keywords
- deep periodontal pocket local drug Doxycycline Atorvastatin
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 80 participants (estimated)
- Lead sponsor
- Fayoum UniversityUniversity, hospital or other
- Study start
- Jun 2026 (estimated)
- Primary completion
- Jun 2027 (estimated)
- Study completion
- Dec 2027 (estimated)
- First posted
- 8 Jun 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Chronic periodontitis is one of the most prevalent inflammatory diseases affecting the tooth-supporting structures and is characterized by progressive clinical attachment loss and alveolar bone resorption resulting from a complex interaction between pathogenic microorganisms and the host inflammatory and immune responses. If left untreated, the disease may ultimately lead to tooth loss and negatively affect oral health and quality of life.
Scaling and root planing (SRP) is considered the gold-standard non-surgical treatment for chronic periodontitis. It aims to remove dental plaque and calculus deposits and reduce the subgingival bacterial load. Although SRP has demonstrated significant clinical benefits, its effectiveness may be limited in certain situations, particularly in deep periodontal pockets and anatomically complex areas that are difficult to access. Therefore, adjunctive therapeutic approaches have been investigated to enhance treatment outcomes and improve long-term periodontal stability.
In recent years, local drug delivery systems have gained considerable attention in periodontal therapy due to their ability to provide high therapeutic concentrations directly at the site of infection while minimizing systemic adverse effects. Chitosan has emerged as a promising biomaterial for this purpose because of its excellent biocompatibility, biodegradability, antimicrobial properties, and its ability to form nanoparticles capable of sustained and controlled drug release within periodontal pockets.
Doxycycline is widely used in periodontal treatment because of its antimicrobial activity against periodontal pathogens as well as its ability to inhibit matrix metalloproteinases (MMPs), which play a key role in connective tissue destruction and alveolar bone loss. Furthermore, recent studies have demonstrated that atorvastatin, beyond its well-known lipid-lowering effects, possesses anti-inflammatory, immunomodulatory, and osteogenic properties that may contribute to periodontal tissue regeneration and improved clinical outcomes.
The research problem arises from the limited effectiveness of scaling and root planing alone in some cases of chronic periodontitis and the need for innovative adjunctive therapies that combine antimicrobial, anti-inflammatory, and bone regenerative effects. Therefore, evaluating the therapeutic potential of chitosan nanoparticles loaded with doxycycline and atorvastatin may provide a novel and effective approach for periodontal treatment.
The aim of this study is to clinically and radiographically evaluate the effectiveness of chitosan nanoparticles loaded with doxycycline and atorvastatin as an adjunct to scaling and root planing in patients with chronic periodontitis. Clinical outcomes, including probing pocket depth (PPD), clinical attachment level (CAL), plaque index (PI), and bleeding on probing (BOP), as well as radiographic changes in alveolar bone levels, will be assessed and compared with conventional treatment outcomes. The findings of this study may contribute to the development of a more effective and biologically targeted therapeutic strategy for the management of chronic periodontitis.
Detailed description
Chronic periodontitis is one of the most prevalent inflammatory diseases affecting the tooth-supporting structures and is characterized by progressive clinical attachment loss and alveolar bone resorption resulting from a complex interaction between pathogenic microorganisms and the host inflammatory and immune responses. If left untreated, the disease may ultimately lead to tooth loss and negatively affect oral health and quality of life.
Scaling and root planing (SRP) is considered the gold-standard non-surgical treatment for chronic periodontitis. It aims to remove dental plaque and calculus deposits and reduce the subgingival bacterial load. Although SRP has demonstrated significant clinical benefits, its effectiveness may be limited in certain situations, particularly in deep periodontal pockets and anatomically complex areas that are difficult to access. Therefore, adjunctive therapeutic approaches have been investigated to enhance treatment outcomes and improve long-term periodontal stability.
In recent years, local drug delivery systems have gained considerable attention in periodontal therapy due to their ability to provide high therapeutic concentrations directly at the site of infection while minimizing systemic adverse effects. Chitosan has emerged as a promising biomaterial for this purpose because of its excellent biocompatibility, biodegradability, antimicrobial properties, and its ability to form nanoparticles capable of sustained and controlled drug release within periodontal pockets.
Doxycycline is widely used in periodontal treatment because of its antimicrobial activity against periodontal pathogens as well as its ability to inhibit matrix metalloproteinases (MMPs), which play a key role in connective tissue destruction and alveolar bone loss. Furthermore, recent studies have demonstrated that atorvastatin, beyond its well-known lipid-lowering effects, possesses anti-inflammatory, immunomodulatory, and osteogenic properties that may contribute to periodontal tissue regeneration and improved clinical outcomes.
The research problem arises from the limited effectiveness of scaling and root planing alone in some cases of chronic periodontitis and the need for innovative adjunctive therapies that combine antimicrobial, anti-inflammatory, and bone regenerative effects. Therefore, evaluating the therapeutic potential of chitosan nanoparticles loaded with doxycycline and atorvastatin may provide a novel and effective approach for periodontal treatment.
The aim of this study is to clinically and radiographically evaluate the effectiveness of chitosan nanoparticles loaded with doxycycline and atorvastatin as an adjunct to scaling and root planing in patients with chronic periodontitis. Clinical outcomes, including probing pocket depth (PPD), clinical attachment level (CAL), plaque index (PI), and bleeding on probing (BOP), as well as radiographic changes in alveolar bone levels, will be assessed and compared with conventional treatment outcomes. The findings of this study may contribute to the development of a more effective and biologically targeted therapeutic strategy for the management of chronic periodontitis.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| only scaling and root planning | No intervention | –patients will complete thorough full-mouth scaling and root planning (SRP), including the upper and lower jaws. Under local anaesthesia, subgingival debridement will be achieved using periodontal Gracey curettes and an ultrasonic scaler |
| local drug after scaling and root planning | Active comparator | Drug: Doxycycline and Atorvastatin loaded Chitosan nanoparticles local drugthe group will go through the phase 1 therapy then will receive the local drug using a blunt cannula syringe (26 gauge), injecting 0.1 mL of the prepared drug gel into the periodontal pocket (one per patient). After delivery, the gel will become more viscous and occluded the pockets, thus eliminating the need for placing periodontal dressing. After LDD, patients will be instructed to avoid chewing on sticky/hard foodstuff or using toothbrush/interdental aids near the treated areas for 1 week. All patients will receive the same postoperative instructions, and no mouthwashes or antibiotics will be prescribed after treatment. |
Who may qualify
- Ages
- 25 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- In order for patients to be considered in the study, they must meet the following criteria: 1) they should have stage II and stage III periodontitis 2) Patients' age range equal or more than 25 years old .
Key exclusion criteria (2 listed)
- Patients with any systemic condition that may affect periodontal health and bone formation, such as; those who are pregnant, nursing, or postmenopausal women; DM, CVD, metabolic syndrome, osteoporosis, AIDS and chronic alcoholism .
- 2) Patients having local factors that may aggravate and predispose for periodontal diseases such as; orthodontic and prosthetic appliances and parafunctional habits 3)smoking (A patient was classified as a current smoker if they smoked more than 10 cigarettes per day regularly for a minimum period of 5 years) 4) Individuals on systemic drug affecting metabolic bone diseases , Medications taken for the treatment of arthritis and psychotropic and epileptic disorders, as well as anticoagulants, antacids, bisphosphonates, corticosteroids, and antineoplastic drugs, can profoundly affect bone metabolism
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Doxycycline and Atorvastatin loaded Chitosan nanoparticles local drugthe group will receive the local drug using a blunt cannula syringe (26 gauge), injecting 0.1 mL of the prepared drug gel into the periodontal pocket (one per patient). After delivery, the gel will become more viscous and occluded the pockets, thus eliminating the need for placing periodontal dressing. After LDD, patients will be instructed to avoid chewing on sticky/hard foodstuff or using toothbrush/interdental aids near the treated areas for 1 week. All patients will receive the same postoperative instructions, and no mouthwashes or antibiotics will be prescribed after treatment. | Drug | local drug after scaling and root planning |
Primary outcome
Reduction in periodontal parameters
Time frame: From enrollment to the end of treatment at 6 months
Reduction in periodontal parameters including Probing pocket depth PPD (in mm), Clinical attachment level CAL (in mm)
4 secondary outcomes
Reduction in bleeding on probing
Time frame: from enrollment to 6 months
Reduction in gingival index
Time frame: from enrollment to 6 months
Reduction in plaque index
Time frame: from enrollment to 6 months
Radiographic improvement :
Time frame: from enrollment to 6 months
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 8 Jun 2026.
- Background: PubMed 9358557Calvo P, Remunan-Lopez C, Vila-Jato JL, Alonso MJ. Chitosan and chitosan/ethylene oxide-propylene oxide block copolymer nanoparticles as novel carriers for proteins and vaccines. Pharm Res. 1997 Oct;14(10):1431-6. doi: 10.1023/a:1012128907225.
- Background: PubMed 17664365Goodman SB, Jiranek W, Petrow E, Yasko AW. The effects of medications on bone. J Am Acad Orthop Surg. 2007 Aug;15(8):450-60. doi: 10.5435/00124635-200708000-00002.
- BackgroundNicotine involved in periodontal disease through influence on cytokine profile in gingival crevicular fluid. Kamma, J. J., Giannopoulou, C., Vasdekis, V. G., & Mombelli, A. (2004). FEMS Immunology & Medical Microbiology, 52(2), 282-290. https://doi.org/10.1016/j.femspd.2004.03.008
- Background: PubMed 24991214Alfuriji S, Alhazmi N, Alhamlan N, Al-Ehaideb A, Alruwaithi M, Alkatheeri N, Geevarghese A. The effect of orthodontic therapy on periodontal health: a review of the literature. Int J Dent. 2014;2014:585048. doi: 10.1155/2014/585048. Epub 2014 May 29.
- Background: PubMed 12102708Albandar JM. Global risk factors and risk indicators for periodontal diseases. Periodontol 2000. 2002;29:177-206. doi: 10.1034/j.1600-0757.2002.290109.x. No abstract available.
- Background: PubMed 40377185Ashokan DB, Shekar MK, Dharani K, Mani E, Pampani P, Ravichandran B. Clinical evaluation of photobiomodulation therapy and local 1.2% atorvastatin gel as an adjunct to subgingival instrumentation in patients with stage II periodontitis: a randomized controlled trial. Quintessence Int. 2025 Jul 21;56(7):514-527. doi: 10.3290/j.qi.b6218534.
- Background: PubMed 29926495Tonetti MS, Greenwell H, Kornman KS. Staging and grading of periodontitis: Framework and proposal of a new classification and case definition. J Clin Periodontol. 2018 Jun;45 Suppl 20:S149-S161. doi: 10.1111/jcpe.12945.
- BackgroundYıldırım, Y., Kaya, S., & Demirci, T. (2023). Doxycycline- and atorvastatin-loaded chitosan nanoparticles as a local drug delivery system for periodontitis therapy: In vitro evaluation of antimicrobial activity and release profile. Journal of Drug Delivery Science and Technology, 78, 104145. https://doi.org/10.1016/j.jddst.2023.104145
- BackgroundMadi, M., El-Din, S. A., & Elsaka, S. (2018). Evaluation of chitosan-doxycycline gel as a local drug delivery system in periodontal therapy. Journal of Periodontal Research, 53(5), 714-723. https://doi.org/10.1111/jre.12550
- BackgroundÖzdoğan, A. I. (2018). Local delivery of atorvastatin with chitosan gels enhances anti-inflammatory effects and periodontal tissue healing in experimental periodontitis. Drug Delivery, 25(1), 1353-1362. https://doi.org/10.1080/10717544.2018.1507060
- Background) Rinaudo, M., Pavlov, G., & Desbrieres, J. (2006). Influence of the degree of deacetylation on some physico-chemical properties of chitosan films. Polymer, 47(25), 7201-7208. https://doi.org/10.1016/j.polymer.2006.09.027
- BackgroundPetit, C., Layrolle, P., & Guicheux, J. (2019). Local delivery of statins in periodontal therapy: Clinical outcomes and mechanisms of action. Journal of Clinical Periodontology, 46(10), 1012-1024. https://doi.org/10.1111/jcpe.13190
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Doxycycline and Atorvastatin loaded Chitosan nanoparticles local drug in people with Chronic Periodontitis, run by Fayoum University at 1 site in Egypt.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 8 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Amal mohamed ali Abdelgwad, bachelor (201091369400, am3250@fayoum.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Reduction in periodontal parameters (time frame: From enrollment to the end of treatment at 6 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07634341, which also lists 28 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Jun 2026; AzTrials last refreshed its copy on 8 Nov 2026.