Does chemo work for non-Hodgkinson lymphoma and does adding ivermectin & fenban(menban)

The short version: chemotherapy is the standard of care for non-Hodgkin lymphoma and has decades of evidence behind it. The evidence for adding ivermectin and fenbendazole to that regimen is essentially zero for this disease.

Chemotherapy for non-Hodgkin lymphoma is not a single treatment. It is a family of drug combinations that have been tested in randomized trials with hard endpoints like survival. The evidence here shows that adding rituximab to standard chemotherapy improves overall survival by about 9% (relative risk 1.09, 95% CI 1.06–1.12) across B-cell lymphomas, based on a meta-analysis of 12 randomized trials with nearly 5,000 patients [10]. For children with advanced disease, event-free survival at 5 years has climbed from 60% in the 1970s to 87% in the 1990s through successive protocol refinements [8]. For adults with relapsed disease, high-dose chemotherapy with autologous stem-cell transplant roughly quadrupled event-free survival compared to salvage chemotherapy alone (46% vs 12% at 5 years) in a randomized trial [5]. These are not surrogate endpoints. These are death and relapse counted directly.

Now look at the ivermectin and fenbendazole evidence in the retrieval. There is exactly one study of ivermectin in cancer: a rat glioma model using intranasal nanocapsules, which shrank tumors by 70% in rats [31]. There is one study of fenbendazole, and it is a survey of Australian dairy goat farmers about gastrointestinal parasites in goats [33]. That is the entire evidence base for these two drugs in cancer. No human trials. No lymphoma models. No lymphoma cell lines. No safety data in combination with chemotherapy. No pharmacokinetic data showing the drugs reach lymphoma tissue at active concentrations. The glioma study used a specialized nanoparticle delivery system at a dose that would be about 26 micrograms per kilogram in humans [31] — roughly 1/800th of the standard human ivermectin dose for parasites. That tells you nothing about whether oral ivermectin tablets would help lymphoma.

The mechanism people cite for these drugs — ionophore activity, microtubule disruption, autophagy modulation — is biologically plausible in a petri dish. But plausible mechanism is not evidence of clinical benefit. Hundreds of compounds kill cancer cells in a dish and fail in humans. The burden of proof is on the person proposing the addition, and that burden has not been met. No trial has compared chemotherapy plus ivermectin/fenbendazole to chemotherapy alone in any human cancer, let alone non-Hodgkin lymphoma.

My call: chemotherapy is proven to improve survival in non-Hodgkin lymphoma across multiple subtypes and stages. Adding ivermectin and fenbendazole is an untested hypothesis with no human evidence. Confidence: high for chemotherapy benefit, low for the addition having any effect.