Impacted Tooth Management and Osteoradionecrosis Risk in NPC
Omission of Prophylactic Impacted Tooth Extraction and Risk of Jaw Osteoradionecrosis in Nasopharyngeal Carcinoma: A Multicenter, Noninferiority, Open-Label, Randomized Controlled Trial
This multicenter, randomized controlled trial is designed to determine whether omitting prophylactic extraction of impacted teeth before radiotherapy leads to an unacceptably higher risk of jaw osteoradionecrosis (JORN) compared with conventional prophylactic extraction in patients with non-metastatic nasopharyngeal carcinoma (NPC). JORN is a condition in which jawbone tissue is damaged and fails to heal properly after radiotherapy.
A total of 536 eligible participants with at least one impacted tooth will be randomly assigned to either omit prophylactic extraction of impacted teeth before radiotherapy or undergo conventional prophylactic extraction before radiotherapy. All participants will receive standard curative-intent intensity-modulated radiotherapy (IMRT), with chemotherapy administered when indicated according to the study protocol.
Participants will be followed for up to 5 years. The primary outcome is the incidence of JORN within 2 years after completion of radiotherapy. Secondary outcomes include longer-term incidence of JORN, overall survival, locoregional relapse-free survival, distant metastasis-free survival, quality of life, and treatment-related toxicities.
Přehled studie
Postavení
Postavení
Podmínky
Podmínky
Intervence / Léčba
Intervence / Léčba
Detailní popis
Prophylactic extraction of impacted teeth before radiotherapy is performed to reduce the potential risk of dental complications and jaw osteoradionecrosis after treatment. However, whether prophylactic extraction is necessary for impacted teeth without indications for therapeutic extraction remains uncertain.
This study is designed to evaluate whether omission of prophylactic impacted tooth extraction is noninferior to conventional prophylactic extraction with respect to the risk of jaw osteoradionecrosis in patients with non-metastatic nasopharyngeal carcinoma undergoing curative-intent radiotherapy. The study will also assess the long-term clinical outcomes and safety of this tooth-management strategy.
Typ studie
Typ studie
Zápis (Odhadovaný)
Zápis
Fáze
Fáze
- Nelze použít
Kontakty a umístění
Studijní kontakt
Studijní kontakt
- Jméno: Li Jiang, MD
- Telefonní číslo: +86 15994349883
- E-mail: jiangli@sr.gxmu.edu.cn
Studijní záloha kontaktů
- Jméno: Zhen Meng, MD
- Telefonní číslo: +86 15578301825
- E-mail: mengzhen0307@163.com
Studijní místa
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Guangxi
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Baise City, Guangxi, Čína, 533000
- Affiliated Hospital of Youjiang Medical University for Nationalities
-
Kontakt:
- Tingzhuang Yi, MD
- Telefonní číslo: +86 776-2802090
- E-mail: ytz20070101@163.com
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Beihai, Guangxi, Čína, 536000
- Beihai People's Hospital
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Kontakt:
- Sihui Liao, MD
- Telefonní číslo: +86 779 2023316
- E-mail: 13507799365@136.com
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Guigang, Guangxi, Čína, 537100
- Guigang People's Hospital
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Kontakt:
- Yan Wei, MD
- Telefonní číslo: +86 15678865869
- E-mail: wyan184@163.com
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Guilin, Guangxi, Čína, 541001
- The Affiliated Hospital of Guilin Medical University
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Kontakt:
- Xin Zhang, MD
- Telefonní číslo: +86 773 2833086
- E-mail: zhangxin1262008@126.com
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Liuzhou, Guangxi, Čína, 545006
- Liuzhou People's Hospital
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Kontakt:
- Jingchang Li, MD
- Telefonní číslo: +86 18078259868
- E-mail: 549026160@qq.com
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Liuzhou, Guangxi, Čína, 545007
- Liuzhou Workers' Hospital
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Kontakt:
- Ying Lu, MD
- Telefonní číslo: +86 772 3815405
- E-mail: 1786734840@qq.com
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Nanning, Guangxi, Čína, 530021
- The First Affiliated Hospital of Guangxi Medical University
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Kontakt:
- Li Jiang, MD
- Telefonní číslo: +86 15994349883
- E-mail: jiangli@sr.gxmu.edu.cn
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Nanning, Guangxi, Čína, 530000
- The People's Hospital of Guangxi Zhuang Autonomous Region
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Kontakt:
- Heming Lu, MD
- Telefonní číslo: +860771-5722416
- E-mail: luhming3632@163.com
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Nanning, Guangxi, Čína, 530199
- Wuming Hospital Affiliated to Guangxi Medical University
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Kontakt:
- Weiming Zhang, MS
- Telefonní číslo: +86 771-6363880
- E-mail: weiming8207@163.com
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Wuzhou, Guangxi, Čína, 543002
- Wuzhou Red Cross Hospital
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Kontakt:
- Jianquan Gao, MD
- Telefonní číslo: +86 774 3827268
- E-mail: wzhh13878480321@163.com
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Yulin, Guangxi, Čína, 537000
- The First People's Hospital of Yulin
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Kontakt:
- Leifeng Liang, MD
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Kritéria účasti
Kritéria způsobilosti
Kritéria způsobilosti
Věk způsobilý ke studiu
- Dospělý
- Starší dospělý
Přijímá zdravé dobrovolníky
Popis
Inclusion Criteria:
- Eastern Cooperative Oncology Group (ECOG) performance status of 0-1.
- Age 18-75 years, regardless of sex.
- Histologically confirmed non-keratinizing nasopharyngeal carcinoma, including differentiated or undifferentiated subtype (WHO type II or III).
- Newly diagnosed, previously untreated nasopharyngeal carcinoma with stage T1-4N0-3M0 according to the 9th edition of the American Joint Committee on Cancer/Union for International Cancer Control (AJCC/UICC) staging system.
- Presence of permanent dentition with at least one impacted third molar.
- Adequate bone marrow function, defined as white blood cell count ≥4.0 × 10⁹/L, platelet count ≥100 × 10⁹/L, and hemoglobin ≥90 g/L.
- Adequate hepatic function, defined as alanine aminotransferase and aspartate aminotransferase ≤2.5 × the upper limit of normal (ULN), and total bilirubin ≤1.5 × ULN.
- Adequate renal function, defined as blood urea nitrogen and serum creatinine ≤1.5 × ULN, or creatinine clearance ≥60 mL/min.
- Coagulation function within normal limits.
- Written informed consent provided, with willingness and ability to comply with study visits, treatment plans, laboratory assessments, and other study procedures.
Exclusion Criteria:
- Histopathological diagnosis other than WHO type II or III nasopharyngeal carcinoma.
- Impacted third molars with recurrent pericoronitis or inflammation due to incomplete eruption.
- Fully erupted third molars with dental caries involving the pulp.
- Impacted third molars with radiographic evidence of periapical or periodontal inflammation.
- Third molars completely impacted within the jawbone.
- History of active malignancy or other malignant tumors diagnosed within the previous 5 years, except for adequately treated non-melanoma skin cancer or carcinoma in situ.
- Previous chemotherapy, surgery (except diagnostic procedures), radiotherapy, or other antitumor treatment for nasopharyngeal carcinoma or cervical lesions.
- Patients receiving palliative treatment.
- Pregnant or breastfeeding women.
- Severe uncontrolled cardiovascular or cerebrovascular diseases.
- Severe hepatic or renal dysfunction.
- Uncontrolled diabetes mellitus.
- Severe osteoporosis, medication-related osteonecrosis/osteomyelitis, or chronic diseases requiring long-term systemic corticosteroid therapy.
- Other severe chronic debilitating diseases that may increase study risk or affect study compliance.
- History of drug abuse or alcohol dependence.
- Uncontrolled psychiatric disorders or inability to provide legally valid informed consent.
- Positive hepatitis B surface antigen (HBsAg) with hepatitis B virus DNA >1,000 copies/mL.
- Active hepatitis C virus infection (positive HCV RNA).
- Human immunodeficiency virus (HIV) infection or diagnosis of acquired immunodeficiency syndrome (AIDS).
- Active tuberculosis within the previous 1 year.
- History of active tuberculosis more than 1 year previously without documented completion of standard anti-tuberculosis treatment.
- Any other medical, psychological, social, or laboratory condition that, in the investigator's judgment, may compromise participant safety, interfere with study procedures, affect protocol compliance, or result in premature withdrawal from the study.
- Refusal or inability to provide written informed consent.
Studijní plán
Jak je studie koncipována?
Detaily designu
- Primární účel: Prevence
- Přidělení: Randomizované
- Intervenční model: Paralelní přiřazení
- Maskování: Žádné (otevřený štítek)
Počet zbraní
Zbraně a zásahy
Skupina účastníků / ArmSkupina účastníků / Arm |
Intervence / LéčbaIntervence / Léčba |
|---|---|
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Experimentální: Omission of Prophylactic Extraction Group
Participants assigned to this group will not undergo prophylactic extraction of impacted teeth before radiotherapy.
|
Participants will not undergo prophylactic extraction of eligible impacted teeth before radiotherapy.
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Aktivní komparátor: Conventional Prophylactic Extraction Group
Participants assigned to this group will undergo conventional prophylactic extraction of impacted teeth before radiotherapy.
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Participants will undergo prophylactic extraction of eligible impacted teeth before radiotherapy according to the study protocol.
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Co je měření studie?
Primární výstupní opatření
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
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2-Year Cumulative Incidence of Jaw Osteoradionecrosis
Časové okno: Within 24 months after completion of radiotherapy
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The cumulative incidence of jaw osteoradionecrosis (JORN) within 24 months after completion of radiotherapy will be estimated and compared between the two treatment groups.
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Within 24 months after completion of radiotherapy
|
Sekundární výstupní opatření
Sekundární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
|
2-Year Overall Survival
Časové okno: 24 months after randomization
|
The 2-year overall survival rate will be estimated as the probability of remaining alive at 24 months after randomization and compared between the two treatment groups.
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24 months after randomization
|
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2-Year Event-Free Survival
Časové okno: 24 months after randomization
|
The 2-year event-free survival rate will be estimated as the probability of remaining free from local recurrence, regional recurrence, distant metastasis, or death from any cause at 24 months after randomization and compared between the two treatment groups.
|
24 months after randomization
|
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2-Year Local Relapse-Free Survival
Časové okno: 24 months after randomization
|
The 2-year local relapse-free survival rate will be estimated as the probability of remaining free from local recurrence or death at 24 months after randomization and compared between the two treatment groups.
|
24 months after randomization
|
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2-Year Regional Relapse-Free Survival
Časové okno: 24 months after randomization
|
The 2-year regional relapse-free survival rate will be estimated as the probability of remaining free from regional recurrence or death at 24 months after randomization and compared between the two treatment groups.
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24 months after randomization
|
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2-Year Distant Metastasis-Free Survival
Časové okno: 24 months after randomization
|
The 2-year distant metastasis-free survival rate will be estimated as the probability of remaining free from distant metastasis or death from any cause at 24 months after randomization and compared between the two treatment groups.
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24 months after randomization
|
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Quality of Life Assessed by the EORTC QLQ-C30
Časové okno: Baseline and 3, 6, 12, and 24 months after completion of radiotherapy
|
Quality of life will be assessed using the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30).
Scores are transformed to a 0-100 scale.
Higher scores on the functional scales and global health status/quality-of-life scale indicate better functioning or quality of life, whereas higher scores on the symptom scales indicate greater symptom burden.
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Baseline and 3, 6, 12, and 24 months after completion of radiotherapy
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Head and Neck Cancer-Specific Quality of Life Assessed by the EORTC QLQ-H&N35
Časové okno: Baseline and 3, 6, 12, and 24 months after completion of radiotherapy
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Head and neck cancer-specific symptoms and quality-of-life problems will be assessed using the EORTC QLQ-H&N35 questionnaire.
Scores are transformed to a 0-100 scale, with higher scores indicating greater symptom burden or more severe problems.
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Baseline and 3, 6, 12, and 24 months after completion of radiotherapy
|
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Acute Treatment-Related Toxicities
Časové okno: From initiation of treatment through 90 days after completion of radiotherapy
|
The incidence and severity of acute treatment-related toxicities will be assessed and compared between the two treatment groups.
Toxicities will be graded according to the Common Terminology Criteria for Adverse Events (CTCAE), version 5.0, as applicable.
|
From initiation of treatment through 90 days after completion of radiotherapy
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5-Year Cumulative Incidence of Jaw Osteoradionecrosis
Časové okno: Within 60 months after completion of radiotherapy
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The cumulative incidence of jaw osteoradionecrosis (JORN) within 60 months after completion of radiotherapy will be estimated and compared between the two treatment groups.
|
Within 60 months after completion of radiotherapy
|
|
5-Year Overall Survival
Časové okno: 60 months after randomization
|
The 5-year overall survival rate will be estimated as the probability of remaining alive at 60 months after randomization and compared between the two treatment groups.
|
60 months after randomization
|
|
5-Year Event-Free Survival
Časové okno: 60 months after randomization
|
The 5-year event-free survival rate will be estimated as the probability of remaining free from local recurrence, regional recurrence, distant metastasis, or death from any cause at 60 months after randomization and compared between the two treatment groups.
|
60 months after randomization
|
|
5-Year Local Relapse-Free Survival
Časové okno: 60 months after randomization
|
The 5-year local relapse-free survival rate will be estimated as the probability of remaining free from local recurrence or death from any cause at 60 months after randomization and compared between the two treatment groups.
|
60 months after randomization
|
|
5-Year Regional Relapse-Free Survival
Časové okno: 60 months after randomization
|
The 5-year regional relapse-free survival rate will be estimated as the probability of remaining free from regional recurrence or death from any cause at 60 months after randomization and compared between the two treatment groups.
|
60 months after randomization
|
|
5-Year Distant Metastasis-Free Survival
Časové okno: 60 months after randomization
|
The 5-year distant metastasis-free survival rate will be estimated as the probability of remaining free from distant metastasis or death from any cause at 60 months after randomization and compared between the two treatment groups.
|
60 months after randomization
|
|
Late Treatment-Related Toxicities
Časové okno: From more than 90 days through 60 months after completion of radiotherapy
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The incidence and severity of late treatment-related toxicities will be assessed and compared between the two treatment groups using the RTOG/EORTC late radiation morbidity scoring criteria and CTCAE version 5.0, as applicable.
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From more than 90 days through 60 months after completion of radiotherapy
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Spolupracovníci a vyšetřovatelé
Sponzor
Sponzor
Spolupracovníci
Spolupracovníci
Vyšetřovatelé
Vyšetřovatelé
- Vrchní vyšetřovatel: Min Kang, MD, First Affiliated Hospital of Guangxi Medical University
Publikace a užitečné odkazy
Obecné publikace
- Chen YP, Chan ATC, Le QT, Blanchard P, Sun Y, Ma J. Nasopharyngeal carcinoma. Lancet. 2019 Jul 6;394(10192):64-80. doi: 10.1016/S0140-6736(19)30956-0. Epub 2019 Jun 6.
- Bray F, Laversanne M, Sung H, Ferlay J, Siegel RL, Soerjomataram I, Jemal A. Global cancer statistics 2022: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin. 2024 May-Jun;74(3):229-263. doi: 10.3322/caac.21834. Epub 2024 Apr 4.
- Kubota H, Miyawaki D, Mukumoto N, Ishihara T, Matsumura M, Hasegawa T, Akashi M, Kiyota N, Shinomiya H, Teshima M, Nibu KI, Sasaki R. Risk factors for osteoradionecrosis of the jaw in patients with head and neck squamous cell carcinoma. Radiat Oncol. 2021 Jan 5;16(1):1. doi: 10.1186/s13014-020-01701-5.
- van der Geer SJ, van Rijn PV, Kamstra JI, Langendijk JA, van der Laan BFAM, Roodenburg JLN, Dijkstra PU. Prevalence and prediction of trismus in patients with head and neck cancer: A cross-sectional study. Head Neck. 2019 Jan;41(1):64-71. doi: 10.1002/hed.25369. Epub 2018 Dec 18.
- Yang L, Hong S, Wang Y, Chen H, Liang S, Peng P, Chen Y. Development and External Validation of Nomograms for Predicting Survival in Nasopharyngeal Carcinoma Patients after Definitive Radiotherapy. Sci Rep. 2015 Oct 26;5:15638. doi: 10.1038/srep15638.
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia (Odhadovaný)
Začátek studia
Primární dokončení (Odhadovaný)
Primární dokončení
Dokončení studie (Odhadovaný)
Dokončení studie
Termíny zápisu do studia
První předloženo
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Aktuální)
První zveřejněno
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
Poslední zveřejněná aktualizace
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Naposledy ověřeno
Více informací
Termíny související s touto studií
Klíčová slova
Další relevantní podmínky MeSH
- Stomatognátní onemocnění
- Novotvary podle místa
- Novotvary
- Nemoci zubů
- Novotvary podle histologického typu
- Novotvary hlavy a krku
- Novotvary, žlázové a epiteliální
- Karcinom
- Otorinolaryngologická onemocnění
- Novotvary hltanu
- Otorinolaryngologické novotvary
- Nemoci nosohltanu
- Faryngeální onemocnění
- Novotvary nosohltanu
- Karcinom nosohltanu
- Zub, zasažený
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Další identifikační čísla studie
- FirstGuangxiMU02
Plán pro data jednotlivých účastníků (IPD)
Plánujete sdílet data jednotlivých účastníků (IPD)?
Popis plánu IPD
Informace o lécích a zařízeních, studijní dokumenty
Studuje lékový produkt regulovaný americkým FDA
Studuje produkt zařízení regulovaný americkým úřadem FDA
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