Non-antibiotic Management for Diverticulitis

(NAMAD Trial)

This trial aims to determine if people with mild diverticulitis (swelling and pain in the large intestine) can be treated safely without antibiotics. Researchers will compare two groups: one using only pain medicines (such as acetaminophen and ibuprofen) and another using pain medicines plus antibiotics (such as amoxicillin-clavulanate, ciprofloxacin, and metronidazole). The study seeks to find out if skipping antibiotics results in more hospital visits or complications. Individuals diagnosed with mild diverticulitis by a CT scan and experiencing manageable symptoms might be suitable for this study. Participants will initially follow a liquid diet, attend follow-up check-ups, and report their health over several months. As a Phase 4 trial, this study involves an FDA-approved treatment, aiming to understand its benefits for more patients.

The trial protocol does not specify if you need to stop taking your current medications. However, if you are currently on antibiotics or have been in the past two weeks, you cannot participate in the trial.

Previous studies have shown that amoxicillin-clavulanate is a safe and effective treatment for diverticulitis. It may also reduce the risks associated with fluoroquinolones, another type of antibiotic. Patients who took amoxicillin-clavulanate often reported fewer side effects compared to those using fluoroquinolone-based treatments.

Ciprofloxacin, a type of fluoroquinolone, has been used for diverticulitis, but some users reported serious side effects, including risks of infections like C. diff and tendon problems. Patient reviews give ciprofloxacin mixed safety ratings.

Metronidazole, another antibiotic used with ciprofloxacin, has a slightly better safety rating, but reviews remain mixed. Some people find it effective, while others experience side effects.

Researchers are excited about this trial because it explores a non-antibiotic approach to managing diverticulitis, a condition traditionally treated with antibiotics like amoxicillin-clavulanate, ciprofloxacin, and metronidazole. The trial's experimental arm focuses on symptomatic treatment using ibuprofen and acetaminophen, along with dietary adjustments, which could potentially reduce antibiotic use and its associated side effects. This approach is significant, as it might offer a safer and simpler management strategy for patients, minimizing antibiotic resistance and enhancing patient quality of life.

Research has shown that antibiotics might not be necessary for treating mild diverticulitis, which occurs when the colon becomes inflamed. In this trial, participants in the No-Antibiotic Group will receive only symptomatic treatment with pain relievers such as ibuprofen and acetaminophen. Some studies have found that people can recover just as well with only pain relievers. Participants in the Standard Antibiotic Therapy arm will receive options like amoxicillin-clavulanate or combinations such as metronidazole with ciprofloxacin, alongside pain relievers. However, these antibiotics can cause side effects. New evidence suggests that managing mild cases without antibiotics could be a safe and effective option.¹⁴⁵⁶⁷