Oxfendazole versus triclabendazole dosing for chronic liver fluke (fascioliasis)

A Non-Inferiority Randomized Single Blind Controlled Trial Comparing One and Two Dose Regimes of Oxfendazole versus a Two Dose Regime of Triclabendazole to Treat Chronic Fascioliasis

NIH-funded research Universidad Peruana Cayetano Heredia · NIH-11141568

This compares one- and two-dose oxfendazole regimens to a two-dose triclabendazole regimen for people with chronic Fasciola (liver fluke) infection.

Quick facts

Grant typeU01 cooperative agreement
Study typeNIH-funded research
Funding institutionUniversidad Peruana Cayetano Heredia NIH-funded
Lab location1 site (Lima, Peru)
Project IDNIH-11141568 on NIH RePORTER

What this research studies

If you have chronic Fasciola hepatica infection, this randomized, single-blind trial will assign you to receive either one or two doses of oxfendazole or the standard two-dose triclabendazole regimen. Doctors will monitor parasitological cure and safety after treatment and during follow-up visits. The team has completed animal toxicology studies and human phase 1 work showing oxfendazole is bioavailable and safe, and this trial tests whether oxfendazole works as well as triclabendazole. The work is being led by investigators at Universidad Peruana Cayetano Heredia with sites in endemic areas of Peru.

Who could benefit from this research

Good fit: People (children and adults) with confirmed chronic Fasciola hepatica infection who can attend study visits at the trial sites are ideal candidates.

Not a fit: People without Fasciola infection, or those who cannot take benzimidazole drugs or meet medical exclusion criteria (for example, certain health conditions or pregnancy), may not benefit or be eligible.

Why it matters

Potential benefit: If successful, this could provide an effective and more accessible alternative dosing option to treat fascioliasis and help address emerging triclabendazole resistance.

How similar studies have performed: Triclabendazole is the established treatment but faces reports of resistance, while oxfendazole has shown strong results in animals and phase 1 human safety studies but has not yet been widely tested for human fascioliasis.

Where this research is happening

Lima, Peru

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-10 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.