Effectiveness of Opioid vs Pregabalin Plus Naproxen Sodium in Pain Management of Oral Cancer Patients

This randomized clinical study was designed to compare two pain treatment approaches for adults with oral cancer who had moderate to severe pain. Oral cancer pain may occur because of tumor growth, local tissue damage, inflammation, ulceration, or nerve involvement. Standard pain treatment often includes opioid medicines, but these medicines may cause side effects such as sedation, nausea, constipation, dizziness, tolerance, or dependence. In some patients, pain may also have a nerve-related or inflammatory component, where medicines such as pregabalin and naproxen sodium may provide additional benefit. A total of 98 eligible adult patients with histopathology-confirmed oral cancer and a baseline Visual Analog Scale pain score of 4 or more were included. Patients were randomly assigned into two treatment groups. One group received oral tramadol 50 mg every 4 hours, with dose adjustment according to pain relief and tolerability. The other group received oral pregabalin 75 mg twice daily with naproxen sodium 550 mg twice daily. Both treatments were given for 7 days under clinical monitoring. Pain intensity was measured using the Visual Analog Scale at baseline, day 3, and day 7. The main outcome was the mean reduction in pain score from baseline to day 7. Effective pain relief was defined as at least 50% reduction in the baseline pain score after 7 days of treatment. Side effects such as sedation, nausea or vomiting, constipation, dizziness, and gastrointestinal discomfort were also recorded. Patient satisfaction with pain control was assessed at the end of treatment.

NCT Number	NCT07606638
Lead Sponsor	Mayo Hospital Lahore
Conditions	Oral Cancer, Oral Cavity Cancer, Oral Squamous Cell Carcinoma (OSCC)
Enrollment	98 participants
Start Date	2026-02-01
Primary Completion	2026-07-30 (estimated)
Study Completion	2026-07-30 (estimated)
Updated on ClinicalTrials.gov	2026-05-26