Doxepin Solution for Alleviation of Stubborn Breakthrough Pain Induced by Swallowing in Patients Receiving Radiotherapy for Nasopharyngeal Carcinoma
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: doxepin solution, Placebo.
- Who it may be relevant to
- Registry conditions: Swallowing-induced Pain. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- China
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Doxepin Solution for Alleviation of Stubborn Breakthrough Pain Induced by Swallowing in Patient Receiving Radiotherapy for Nasopharyngeal Carcinoma: A Multicenter, Randomized, Controlled, Double-Blind Clinical Trial
Overview
The goal of this clinical trial is to explore the effectiveness and adverse reactions of doxepin solution spray for alleviation of stubborn breakthrough pain induced by swallowing in patients receiving radiotherapy for nasopharyngeal carcinoma.
Detailed description
Patients with nasopharyngeal carcinoma receiving radical radiotherapy or chemoradiotherapy who developed oral mucositis and had a swallowing-induced pain score ≥ 4 were recruited and randomly assigned 1:1 to the experimental group and the control group.
Patients in the experimental group received a doxepin solution spray to the posterior pharyngeal wall 10 minutes before eating. At least 12 hours later, when the swallowing-induced pain score ≥4, a placebo spray was administered to the posterior pharyngeal wall 10 minutes before eating.
Patients in the control group received a placebo spray to the posterior pharyngeal wall 10 minutes before eating. At least 12 hours later, when the swallowing-induced pain score ≥4, a doxepin solution spray was administered to the posterior pharyngeal wall 10 minutes before eating.
The swallowing-induced pain and incidence of adverse events were assessed at 10 minutes, 20 minutes, 30 minutes, and 1 hour after medication using a patient-reported questionnaire, and safety evaluation was conducted 1 day after treatment.
Interventions
- Drug doxepin solution
2.0 mL doxepin solution (5mg/mL) sprayed to the posterior pharyngeal wall - Other Placebo
2.0 mL placebo sprayed to the posterior pharyngeal wall
Primary outcome measures
- Redution of swallowing-induced pain [Time frame: Baseline, and 10, 20, 30, 60 minutes after administration]
Secondary outcome measures (6)
- Total Drowsiness Increase [Time frame: Baseline, and 10, 20, 30, 60 minutes after administration]
- Total Taste of the Agent [Time frame: 10, 20, 30 and 60 minutes after administration]
- Total Stinging or Burning From the Agent [Time frame: 10, 20, 30 and 60 minutes after administration]
- Difficulty in Swallowing Different Food [Time frame: Baseline, and 10, 20, 30, 60 minutes after administration]
- Patient Preference for Continuing Therapy With the Agent [Time frame: 60 minutes after administration]
- Adverse Event Profiles [Time frame: up to one day after administration]
Eligibility criteria
Inclusion criteria
- Provide informed written consent.
- Age ≥ 18 years.
- Histologically confirmed as nasopharyngeal carcinoma, and currently undergoing radical radiotherapy or chemoradiotherapy.
- Physical examination demonstrating the presence of radiation-induced mucositis in the oral cavity and/or oropharynx.
- At least 4 (out of 10) patient-reported swallowing-induced pain as measured by the numeric rating scale of pain.
- Being able to complete the questionnaires independently or with assistance.
- ECOG Performance Status 0, 1 or 2.
Exclusion criteria
- Known allergy to doxepin, tricyclic antidepressants, or any known component of the drug formulation.
- Use of a tricyclic antidepressant or monoamine oxidase inhibitor within 14 days prior to registration.
- Current untreated or unhealed oral candidiasis or oral herpes simplex virus infection.
- Untreated narrow angle glaucoma within 6 weeks prior to registration.
- Untreated urinary retention within 6 weeks prior to registration.
- Administration of cryotherapy to prevent oral mucositis within 6 weeks prior to registration.
- Current serious heart disease or a recent history of myocardial infarction.
- Current untreated or unresolved conditions like epilepsy, hyperthyroidism, hepatic dysfunction, delirium, and neutropenia.
- Pregnant or lactating women.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Crossover
- Masking
- Double blind
- Primary purpose
- Supportive care
Study locations
China · 1 center
- Southern medical university — Guangzhou
Identifiers
NCT: NCT06017895 · NFEC-2023-351