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The PENTO Protocol in Medication-related Osteonecrosis of the Jaw (PENTO)

Primary Purpose

Medication-related Osteonecrosis of the Jaw (MRONJ)

Status
Not yet recruiting
Phase
Phase 2
Locations
Study Type
Interventional
Intervention
Pentoxifylline+Tocopherol
Sponsored by
University Hospital, Limoges
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Medication-related Osteonecrosis of the Jaw (MRONJ) focused on measuring MRONJ, pentoxifylline, tocophérol, bone exposure, renutrition

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria: Age greater than or equal to 18 years Current or past treatment with bisphosphonates (oral or IV) and/or targeted therapies (denosumab, bevacizumab) Signs and symptoms for more than 8S with confirmation that the signs and symptoms are not of dental origin AAOMS Stage 2 MRONJ For patients of childbearing age, effective contraception is required Exclusion Criteria: History of head or neck radiotherapy or maxilla metastases Patients who have received treatment in the past (PENTO or PENTOCLO protocol) Patients who have undergone surgery for their MRONJ within the last 3 months Pregnant or wishing to be pregnant, breastfeeding Patient under palliative care Patient with hypersensitivity to pentoxifylline or tocopherol or to an excipient History of hypersensitivity reaction to penicillins, cephalosporins, or other beta-lactams (or clindamycin or lincomycin if applicable) or excipient of amoxicillin-a. clavulanic or clindamycin History of jaundice/hepatic injury related to amoxicillin/clavulanic acid Patient taking oral anticoagulants, or with a history of major bleeding or bleeding disorders Patient taking platelet aggregation inhibitor, theophylline or aminophylline Patient taking methotrexate, probenecid, mycophenolate mofetil, myorelaxant drugs, macrolide or streptogramin antibiotics Patients with a history of hepatic failure, renal failure (Cl < 30 mL/min), hypotension (SBP (systolic blood pressure) < 90 mmHg) Patient with hypotension (SBP < 90 mmHg) Refusal to participate in the study Patient participating in other interventional research that may interfere with the conduct of this research Patient unable to understand the protocol Patient under curatorship or guardianship

Sites / Locations

    Arms of the Study

    Arm 1

    Arm Type

    Experimental

    Arm Label

    Pentoxifylline

    Arm Description

    Treatment will consist of pentoxifylline LP 400 mg morning and evening, combined with tocopherol 500 mg morning and evening

    Outcomes

    Primary Outcome Measures

    Exposure bone area (EBA)
    exposure bone area (EBA) less than 5 mm at 12 months. It will be expressed as the percentage of patients who achieved healing (EBA < 5 mm) at 12 months.

    Secondary Outcome Measures

    SOMA score
    describe the evolution of the modified SOMA score (pain, chewing, bone exposure size, trismus, radiological appearance)
    Nutritional parameters evolution (albuminemia)
    describe the nutritional parameters evolution albuminemia
    Nutritional parameters evolution (pre-albuminemia)
    describe the nutritional parameters evolution pre-albuminemia
    Nutritional parameters evolution (weight)
    describe the nutritional parameters evolution weight
    Nutritional parameters evolution (BMI)
    describe the nutritional parameters evolution BMI
    Exposure bone area (EBA)
    describe the evolution of the exposure bone area (EBA)
    Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability])
    description of adverse events

    Full Information

    First Posted
    December 14, 2022
    Last Updated
    May 30, 2023
    Sponsor
    University Hospital, Limoges
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    1. Study Identification

    Unique Protocol Identification Number
    NCT05795647
    Brief Title
    The PENTO Protocol in Medication-related Osteonecrosis of the Jaw
    Acronym
    PENTO
    Official Title
    The PENTO Protocol in Medication-related Osteonecrosis of the Jaw
    Study Type
    Interventional

    2. Study Status

    Record Verification Date
    March 2023
    Overall Recruitment Status
    Not yet recruiting
    Study Start Date
    September 1, 2023 (Anticipated)
    Primary Completion Date
    February 1, 2025 (Anticipated)
    Study Completion Date
    February 1, 2025 (Anticipated)

    3. Sponsor/Collaborators

    Responsible Party, by Official Title
    Sponsor
    Name of the Sponsor
    University Hospital, Limoges

    4. Oversight

    Studies a U.S. FDA-regulated Drug Product
    No
    Studies a U.S. FDA-regulated Device Product
    No
    Data Monitoring Committee
    No

    5. Study Description

    Brief Summary
    Medication-related osteonecrosis of the jaw (MRONJ) occurs after taking bisphosphonates or targeted therapies. It leads to a significant decrease in quality of life with pain, eating and chewing disorders, and malnutrition. Current treatments are only partially effective. PENTO (pentoxifylline and tocopherol) has been shown to be effective in maxillary osteoradionecrosis. The objective of this study is to evaluate the proportion of bone recovery in patients receiving PENTO in MRONJ at 12 months.
    Detailed Description
    MRONJ is defined as intraoral bone exposure persisting for more than 8 weeks after taking an anti-resorptive agent (per os or IV bisphosphonates, targeted therapies) and without history of maxilla radiotherapy or metastasis. It leads to a significant decrease in quality of life with significant pain at rest and during mastication, and compromised nutrition, sometimes resulting in severe undernutrition in patients already weakened by a history of cancer. Current treatments (prolonged antibiotic therapy, repeated bone curettage) have shown partial effectiveness. PENTO (combination of pentoxifylline, a vasodilator, and tocopherol, vitamin E) has been shown to significantly reduce intraoral exposed bone surface area and pain in maxilla osteoradionecrosis. All studies conducted so far on PENTO in MRONJ are retrospective or involve small samples. Therefore, our idea is to perform a well-conducted prospective phase IIa study to prove the efficacy of PENTO, with a larger sample size and identical follow-up periods. The investigators will study patients with AAOMS stage 2 MRONJ (exposed bone in symptomatic patients, without pathologic fracture). Treatment will consist of pentoxifylline LP 400 mg morning and evening, combined with tocopherol 500 mg morning and evening. Antibiotic therapy with Augmentin (or clindamycin) will be added for the first month and then punctually if signs of local infection appear. The primary and secondary endpoints will be assessed at inclusion and at 1, 3, 6 and 12 months.

    6. Conditions and Keywords

    Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
    Medication-related Osteonecrosis of the Jaw (MRONJ)
    Keywords
    MRONJ, pentoxifylline, tocophérol, bone exposure, renutrition

    7. Study Design

    Primary Purpose
    Treatment
    Study Phase
    Phase 2
    Interventional Study Model
    Single Group Assignment
    Masking
    None (Open Label)
    Allocation
    N/A
    Enrollment
    17 (Anticipated)

    8. Arms, Groups, and Interventions

    Arm Title
    Pentoxifylline
    Arm Type
    Experimental
    Arm Description
    Treatment will consist of pentoxifylline LP 400 mg morning and evening, combined with tocopherol 500 mg morning and evening
    Intervention Type
    Drug
    Intervention Name(s)
    Pentoxifylline+Tocopherol
    Intervention Description
    Treatment will consist of pentoxifylline LP 400 mg morning and evening, combined with tocopherol 500 mg morning and evening
    Primary Outcome Measure Information:
    Title
    Exposure bone area (EBA)
    Description
    exposure bone area (EBA) less than 5 mm at 12 months. It will be expressed as the percentage of patients who achieved healing (EBA < 5 mm) at 12 months.
    Time Frame
    Month 12
    Secondary Outcome Measure Information:
    Title
    SOMA score
    Description
    describe the evolution of the modified SOMA score (pain, chewing, bone exposure size, trismus, radiological appearance)
    Time Frame
    Month 1, Month 3, Month 6, Month 12
    Title
    Nutritional parameters evolution (albuminemia)
    Description
    describe the nutritional parameters evolution albuminemia
    Time Frame
    Month 1, Month 3, Month 6, Month 12
    Title
    Nutritional parameters evolution (pre-albuminemia)
    Description
    describe the nutritional parameters evolution pre-albuminemia
    Time Frame
    Month 1, Month 3, Month 6, Month 12
    Title
    Nutritional parameters evolution (weight)
    Description
    describe the nutritional parameters evolution weight
    Time Frame
    Month 1, Month 3, Month 6, Month 12
    Title
    Nutritional parameters evolution (BMI)
    Description
    describe the nutritional parameters evolution BMI
    Time Frame
    Month 1, Month 3, Month 6, Month 12
    Title
    Exposure bone area (EBA)
    Description
    describe the evolution of the exposure bone area (EBA)
    Time Frame
    Month 1, Month 3, Month 6, Month 12
    Title
    Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability])
    Description
    description of adverse events
    Time Frame
    Month 1, Month 3, Month 6, Month 12

    10. Eligibility

    Sex
    All
    Minimum Age & Unit of Time
    18 Years
    Accepts Healthy Volunteers
    No
    Eligibility Criteria
    Inclusion Criteria: Age greater than or equal to 18 years Current or past treatment with bisphosphonates (oral or IV) and/or targeted therapies (denosumab, bevacizumab) Signs and symptoms for more than 8S with confirmation that the signs and symptoms are not of dental origin AAOMS Stage 2 MRONJ For patients of childbearing age, effective contraception is required Exclusion Criteria: History of head or neck radiotherapy or maxilla metastases Patients who have received treatment in the past (PENTO or PENTOCLO protocol) Patients who have undergone surgery for their MRONJ within the last 3 months Pregnant or wishing to be pregnant, breastfeeding Patient under palliative care Patient with hypersensitivity to pentoxifylline or tocopherol or to an excipient History of hypersensitivity reaction to penicillins, cephalosporins, or other beta-lactams (or clindamycin or lincomycin if applicable) or excipient of amoxicillin-a. clavulanic or clindamycin History of jaundice/hepatic injury related to amoxicillin/clavulanic acid Patient taking oral anticoagulants, or with a history of major bleeding or bleeding disorders Patient taking platelet aggregation inhibitor, theophylline or aminophylline Patient taking methotrexate, probenecid, mycophenolate mofetil, myorelaxant drugs, macrolide or streptogramin antibiotics Patients with a history of hepatic failure, renal failure (Cl < 30 mL/min), hypotension (SBP (systolic blood pressure) < 90 mmHg) Patient with hypotension (SBP < 90 mmHg) Refusal to participate in the study Patient participating in other interventional research that may interfere with the conduct of this research Patient unable to understand the protocol Patient under curatorship or guardianship
    Central Contact Person:
    First Name & Middle Initial & Last Name or Official Title & Degree
    Julie USSEGLIO, Dr
    Phone
    +33 (0) 555 056 120
    Email
    julie.usseglio@chu-limoges.fr
    Overall Study Officials:
    First Name & Middle Initial & Last Name & Degree
    Julie USSEGLIO, Dr
    Organizational Affiliation
    University Hospital, Limoges
    Official's Role
    Principal Investigator

    12. IPD Sharing Statement

    Plan to Share IPD
    No

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    The PENTO Protocol in Medication-related Osteonecrosis of the Jaw

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