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Induction Chemotherapy Response-Guided Reduced-Dose Radiotherapy for Nasopharyngeal Carcinoma

26. august 2026 oppdatert av: Chaosu Hu, Fudan University

Induction Chemotherapy Response-Guided Reduced-Dose Radiotherapy for Nasopharyngeal Carcinoma: A Prospective Single-center Randomized Phase II Study

To evaluate whether the 2-year local failure-free survival (LRFFS) in Cohort 1 patients with AJCC/UICC 8th edition stage IB-II nasopharyngeal carcinoma who achieved EBV-DNA = 0 after induction chemotherapy and had MRI assessment of complete response (CR) or partial response (PR) ≥50% is non-inferior when treated with reduced-dose IMRT (59.4 Gy/27 fractions) compared to standard-dose IMRT (66.0 Gy/30 fractions).

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

This study focused on patients with AJCC/UICC 9th edition stage IB-II（The participants were required to have no extensive skull base invasion and lymph nodes < 4 cm before treatment）. It aimed to adaptively guide the reduction of radiation dose for nasopharyngeal carcinoma based on the response to induction chemotherapy, thereby minimizing radiation-related toxicity while ensuring local control. Cohort 1 was randomly assigned 1:1 to the 59.4 Gy/27 fractions group and the 66.0 Gy/30 fractions group and compared their LRFFS. The participants were required to have EBV-DNA = 0 and CR or PR > 50% after 2 courses of induction therapy. Those who did not meet the criteria were assigned to Cohort 2 to receive standard-dose radiotherapy combined with concurrent cisplatin to avoid excessive reduction of intensity for potentially high-risk patients.

Studietype

Intervensjonell

Registrering (Antatt)

269

Fase

  • Fase 2

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

  • Kina
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, Kina, 200032
        • Fudan Universtiy Shanghai Cancer Center
        • Ta kontakt med:
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Beskrivelse

Inclusion Criteria:

  • Age: 18 - 65 years old.
  • Pathologically confirmed nasopharyngeal carcinoma, WHO type II or III non-keratinizing cancer.
  • AJCC/UICC 9th edition stage IB-II untreated non-metastatic nasopharyngeal carcinoma (T3 requires no extensive cranial base invasion and the invasion volume should be < 22 mL; N1-2 requires baseline lymph nodes < 4 cm).
  • Before treatment, plasma EBV-DNA needs to be tested and dynamic monitoring of EBV-DNA can be completed.
  • ECOG performance status 0 - 1 points.
  • Main organ functions meet the following requirements: neutrophils ≥ 1.5 × 10^9/L, platelets ≥ 100 × 10^9/L, hemoglobin ≥ 90 g/L; ALT/AST ≤ 2.5 × ULN, total bilirubin ≤ 1.5 × ULN; creatinine clearance rate ≥ 60 mL/min.
  • Sign a written informed consent form and be willing to complete the treatment, follow-up and quality of life assessment according to the protocol.

Exclusion Criteria:

  • Metastasis to T4, N3 or distant sites; AJCC/UICC 9th edition stage III-IV.
  • Had received chemotherapy, targeted therapy, or immunotherapy before the diagnosis of nasopharyngeal carcinoma, and had a history of radiotherapy or surgery for head and neck tumors (except for diagnostic biopsies).
  • Pregnant or lactating; non-pregnant and non-lactating subjects who do not agree to take effective contraceptive measures.
  • Had severe and uncontrollable heart, lung, liver, kidney, neurological or mental diseases, and the investigator judged that they were not suitable for radical treatment or affected compliance.
  • Had a history of other malignant tumors within the past 5 years, except for the following situations: cured localized tumors, such as skin basal cell carcinoma, skin squamous cell carcinoma, superficial bladder cancer, prostate carcinoma in situ, cervical carcinoma in situ, breast carcinoma in situ, papillary thyroid carcinoma, etc.
  • Could not complete the imaging examinations, EBV-DNA tests, follow-up or quality of life assessment as required by the protocol.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Experimental group
reduced dose group
Stråling: reduced dose group
59.4 Gy/27F
Aktiv komparator: Control group
standard dose group
Stråling: Standard Dose Group
66 Gy/30F
Annen: Corhort 2
Annen: concurrent chemoradiotherapy
66.0-70.4 Gy/30-32F + cisplatin 80 mg/m² q3w×2

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
2-year Locoregional Failure-Free Survival，2-y LRFFS
Tidsramme: 2 year
The time from enrollment to the first local or regional failure or any cause of death is determined by the event that occurs first. For those who did not experience any of these events, they are censored at the last valid follow-up date.
2 year

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
2-year Failure-Free Survival，2-y FFS
Tidsramme: 2 year
The time from enrollment to the first occurrence of local regional failure, distant metastasis, or death due to any cause is determined by the event that occurs first.
2 year
2-year Overall Survival，2-y OS
Tidsramme: 2 year
The time from enrollment to any cause of death; for those who were still alive at the end of the follow-up, the data are censored at the date of the last confirmed survival.
2 year
2-year Distant Failure-Free Survival，2-y DFFS
Tidsramme: 2 year
The time from enrollment to the first distant metastasis or any cause of death is determined by the event that occurs first.
2 year
Acute Adverse Events，acute AEs
Tidsramme: up to 90 days after radiotherapy
The evaluation was conducted according to NCI-CTCAE v5.0 from the start of radiotherapy to 90 days after radiotherapy.
up to 90 days after radiotherapy
Late Adverse Events，late AEs
Tidsramme: After 90 days of radiotherapy to the date of death，assessed up to 2 years or more.
After 90 days of radiotherapy, the evaluation was conducted according to CTCAE v5.0 and RTOG/EORTC standards for late radiation injury.
After 90 days of radiotherapy to the date of death，assessed up to 2 years or more.
Quality of Life，QoL (EORTC QLQ-H&N35）
Tidsramme: baseline and up to one year
Changes in QoL of participants from baseline to up to 6 months after the completion of radiotherapy. QoL will be evaluated with the questionnaires of the head-and-neck-specific module (H&N35) of the Quality of Life Questionnaire-Core 30 module (QLQ-C30). Higher scores mean a worse outcome.
baseline and up to one year

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Fudan University

Etterforskere

  • Hovedetterforsker: Xiayun He, Fudan University

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

1. september 2026

Primær fullføring (Antatt)

31. august 2031

Studiet fullført (Antatt)

31. august 2031

Datoer for studieregistrering

Først innsendt

23. august 2026

Først innsendt som oppfylte QC-kriteriene

26. august 2026

Først lagt ut (Faktiske)

27. august 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

27. august 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

26. august 2026

Sist bekreftet

1. august 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • ADAPT-02

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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