Comparing two medications for pain relief after root canal treatment

Comparing Trypsin-Chymotrypsin and Naproxen Sodium for Post-endodontic Treatment Pain: a Randomized Controlled Trial

Phase 4 Interventional Dow University of Health Sciences · NCT06562816

This study is testing whether a new pain relief medication works better than a common one for people who have pain after a root canal treatment.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment100 (estimated)
Ages18 Years to 45 Years
SexAll
SponsorDow University of Health Sciences Academic / other
Locations1 site (Karachi, Sindh)
Trial IDNCT06562816 on ClinicalTrials.gov

What this trial studies

This study aims to evaluate the effectiveness of Trypsin-Chymotrypsin versus Naproxen Sodium in reducing pain following root canal treatment in patients with symptomatic irreversible pulpitis. Conducted as a triple-blinded, parallel, randomized controlled trial, 100 patients will be randomly assigned to receive either medication after their treatment. Pain levels will be measured at multiple intervals post-treatment using a numerical rating scale to determine which medication provides better pain relief. The study seeks to address the common issue of post-endodontic treatment pain that often discourages patients from seeking dental care.

Who should consider this trial

Good fit: Ideal candidates are healthy adults aged 18-45 with symptomatic irreversible pulpitis scheduled for endodontic treatment.

Not a fit: Patients requiring emergency dental treatment or those with systemic diseases or allergies to the study medications may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved pain management options for patients undergoing root canal treatments.

How similar studies have performed: Previous studies have explored alternative pain management strategies, but the specific comparison of Trypsin-Chymotrypsin and Naproxen Sodium in this context is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Both male and female, healthy patients (ASA class 1).
* Patients between the age group of 18-45 years.
* Patients who are appointed for endodontic treatment.
* Maxillary or mandibular teeth diagnosed with symptomatic irreversible pulpitis based on delayed responses to vitality tests.

Exclusion Criteria:

* Patients who will require emergency dental treatment.
* Teeth with any form of peri-apical lesion will be excluded.
* Patient who have taken analgesics within 24 hours prior to the treatment.
* Patients with known hypersensitivity or allergy to any of the study medications.
* Patients with any systemic disease such as uncontrolled diabetes, gastric ulcers, bleeding disorders, or cardiovascular problems.
* Pregnant or lactating women and pediatric patients.

Where this trial is running

Karachi, Sindh

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Effect of DrugTrypsin-ChymotrypsinNaproxen SodiumSymptomatic Irreversible PulpitisAcute Irreversible PulpitisPost-endodontic treatment painRoot canal treatmentProteolytic Enzyme
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.