The goal of this clinical trial is to investigate the effectiveness of Methylene Blue (MB) as a radiosensitizer in treating head and neck squamous cell carcinoma (HNSCC) that has recurred locally and is resistant to radiation therapy. It will also assess the safety of Methylene Blue. The main questions it aims to answer are: Does Methylene Blue improve the outcomes for patients with recurrent HNSCC receiving radiation therapy? What side effects do participants experience while receiving Methylene Blue? Participants will: Receive weekly injections of Methylene Blue or placebo into the tumor over six weeks. Undergo six weeks of concurrent radiation therapy. Be monitored regularly for treatment effects and document any side effects experienced during the trial. This single-center clinical trial intends to recruit 10 eligible patients diagnosed with locoregional recurrence of HNSCC that is resistant to previous radiotherapy.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
10
1. Methylene blue (50mg/10mL): Volume: 2 mL, 5 mL, 8 mL and 10mL are used for intratumoral injections in different lesion sizes. Frequency: weekly 2. Radiation dose: 50-60 Gy for target lesions
China medical university hospital
Taichung, Taiwan, Taiwan
Any unexpected severe adverse event resulting from the combination treatment.
The investigators specify that the key feasibility objectives for our study would be considered successful if the following are met: 80% of patients received methylene blue experience no unpredicted harm during the treatment of methylene blue. The definition of unpredicted harm includes death within one month after last dose of methylene blue administration, or unpredicted ≧ grade 3 AE during methylene blue administration. The severity of adverse events was assessed using CTCAE v5.0.
Time frame: "through study completion, an average of 1 year"
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