Skip to content

Phase II study of TransOral Surgery for local recurrence after radiotherapy for head and neck cancer in Japan

Phase II study of TransOral Surgery for local recurrence after radiotherapy for head and neck cancer in Japan - TOS-J 3 trial

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000050014
Enrollment
28
Registered
2023-01-11
Start date
2023-02-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Residual lesion or local recurrence after radiotherapy for head and neck cancer

Interventions

Transoral surgery for residual lesion or local recurrence after radiotherapy for head and neck cancer

Sponsors

National Cancer Center Hospital East
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Patients have received radical irradiation (radiation dose of 60 Gy or more) for the primary disease in the past. 2) Histologically diagnosed as squamous cell carcinoma (not including severe dysplasia). 3) Clinically diagnosed as residual lesion or local recurrence. 4) Most of the lesion is confined to the epithelium and subepithelial layer. 5) Lesions primarily located in the oropharynx, hypopharynx or supraglottic (not including cervical esophageal lesions). 6) A clinical diagnosis that the residual lesion or local recurrence is 4cm or less in diameter (rT2) (T factor before radical irradiation is not considered). 7) Neither CT nor MRI shows obvious cartilage invasion of the residual lesion or local recurrence. 8) No evidence of lymph node metastasis or distant metastasis on computed tomography of the neck, chest or abdomen (rN0M0) (Regions including the cranial base should be scanned, with a slice thickness of 10 mm or less.) 9) An age of 20 years to 75 years or younger at the time of registration. 10) An Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. 11) All of the following conditions are met (all laboratory tests should be the most recent within 28 days prior to enrollment) Testing on the same day of the week 4 weeks prior to registration is acceptable) a. Leukocyte count >= 3000/uL b. Hemoglobin level >= 10 g/dL c. Platelet count >=100 x 103/uL d. Aspartate aminotransferase and alanine transaminase levels 3 times or less the institutional upper limit of normal e. Total bilirubin levels 1.5 times or less the institutional upper limit of normal f. No electrocardiographic abnormalities requiring treatment on 12-lead electrocardiograms obtained at rest 12) Written consent to participate in the study has been obtained.

Exclusion criteria

Exclusion criteria: 1) Patient has two or more multiple cancers of the head and neck region other than the primary lesion at the time of enrollment. 2) Incurable multiple head and neck cancers or double cancers 3) Scheduled to receive chemotherapy (including endocrine therapy, molecular targeted therapy, or immune checkpoint inhibitors) for multiple head and neck cancers or double cancers at the time of enrollment. 4) Women who might be pregnant 5) Participation in the study is precluded by the presence of psychosis or psychiatric symptoms. 6) Active infection (a fever of >=38 degrees and bacterial infection confirmed on imaging studies or bacteriologic examinations) 7) Investigator determines that the patient is ineligible.

Design outcomes

Primary

MeasureTime frame
2-year relapse-free survival rate

Secondary

MeasureTime frame
En bloc resection rate The rate of adverse events associated with transoral surgery 2 and 5-year Overall survival rates, Relapse-free survival rates, Cause-specific survival rates, Laryngeal preservation survival rates and Laryngeal function preservation rates. Local recurrence rate Lymph node and distant recurrence rate Examinations of voice, swallowing function, and pain Comparison with data of the National registration survey of superficial head and neck cancer and TOS-J trial.

Countries

Japan

Contacts

Public ContactKoichi Kano

Kitasato University School of Medicine Department of Otorhinolaryngology - Head and Neck Sugery

kkent@med.kitasato-u.ac.jp042-778-8111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026