FENBENDAZOLE And CANCER: At Least 12 Anti-Cancer Mechanisms Of Action That Kill Aggressive Cancers
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This article was originally published on October 4th, 2023, with minor edits.
A critically important article that further reinforces this Substack’s thesis that Fenbendazole (and Ivermectin) may cure turbo cancers; for example:
FenbenX: Pharmaceutical Grade Pure Fenbendazole
Just like they went after one of the very best cures for PSYOP-19 in Ivermectin…
by Dr. William Makis MD
Papers and Articles Reviewed:
2023 Jun - Movahedi et al - Repurposing anti-parasite benzimidazole drugs as selective anti-cancer chemotherapeutics
2023 Apr - Chi-Son Chang et al - Anti-cancer effect of fenbendazole-incorporated PLGA nanoparticles in ovarian cancer
2023 Mar - Semkova et al - Redox-mediated Anticancer Activity of Anti-parasitic Drug Fenbendazole in Triple-negative Breast Cancer Cells
2023 Mar - Haebeen Jung et al - Differential cytotoxic effects of fenbendazole on mouse lymphoma EL-4 cells and spleen cells
2022 Sep - Deokbae Park et al - Anti-cancer effects of fenbendazole on 5-fluorouracil-resistant colorectal cancer cells
2022 Jan - Li-wen Ren et al - Benzimidazoles induce concurrent apoptosis and pyroptosis of human glioblastoma cells via arresting cell cycle
2020 Aug - Deok-Soo Son et al - The Antitumor Potentials of Benzimidazole Anthelmintics as Repurposing Drugs
2020 Jun - Yong Han et al - Involvement of reactive oxygen species in the anti-cancer activity of fenbendazole, a benzimidazole anthelmintic (leukemia)
2018 Aug - Dogra et al - Fenbendazole acts as a moderate microtubule destabilizing agent and causes cancer cell death by modulating multiple cellular pathways
2023 Jun - Movahedi et al - Repurposing anti-parasite benzimidazole drugs as selective anti-cancer chemotherapeutics
Benzimidazole drugs (including Fenbendazole) have widely been used as anti-helminth agents in both human and/or livestock since the 1960s
These drugs have rapidly become more popular than previous medications due to superiority in terms of efficacy, toxicity and application
Benzimidazole drugs are considered as non-toxic anti-helminth agents in humans and livestock. Acute toxicities are rarely reported for these drugs.
Neither chronic adverse effects in dogs and rats treated with very high dosages, nor irritation, carcinogenicity or teratogenicity in treated rats and rabbits have been observed
Two major mechanisms of action:
1. antimitotic activity (inhibition of tubulin polymerization by binding to tubulin sites of rapidly dividing cells (leads to cell cycle arrest)
2. disrupt cell metabolic processes by inducing oxidative stress
Result: induce apoptosis (cell death) of rapidly proliferating parasites and cancer cells!
These drugs inhibit tumor proliferation and growth
many new benzimidazole derivatives have been developed for the treatment of cancers such as colon cancer, breast cancer, lung cancer, chondrosarcoma and leukemia
Furthermore, new benzimidazole derivatives have demonstrated high capability for overcoming drug resistance
benzimidazole drugs exhibit anti-metastatic effect through inhibiting cell migration and invasion
benzimidazole drugs also suppress telomerase reverse transcriptase (TERT) expression, whose activation is associated with metastasis
benzimidazole drugs are potent in targeting cancer stem cells and preventing tumor recurrence.
benzimidazole drugs are also found to prevent the radiation-induced transformation of cancer cells into radiation-resistant cells, and furthermore sensitize some drug-resistant cells.
Clinical trials are ongoing for cancer therapy with benzimidazole drugs.
For example, clinical study of mebendazole as adjuvant treatment for colon cancer is in Phase 3 (NCT03925662)
and mebendazole in combination with other antiprotozoal agents including albendazole for neoplasm therapy is in Phase 2 (NCT02366884).
Three Phase 1 clinical trials are also ongoing for mebendazole and brain tumors (NCT02644291, NCT01729260, NCT0183787862).
THERE ARE NO CLINICAL TRIALS WITH FENBENDAZOLE
low water solubility of benzimidazole drugs impedes their clinical applications
nano-formulations are being created to improve bioavailability
benzimidazole drugs are also being combined with other chemotherapeutics, such as paclitaxel, trametinib, gemcitabine and methoxyestradiol, to enhance the anti-cancer treatment efficacy.
benzimidazole drugs have also sensitized tumor cells to radiation therapy
2023 Apr - Chi-Son Chang et al - Anti-cancer effect of fenbendazole-incorporated PLGA nanoparticles in ovarian cancer
ovarian cancer is the deadliest gynecological cancer
nanoparticles deliver poorly soluble drugs
fenbendazole, an anti-parasitic drug was examined due to its anti-cancer effects: ability to interfere with microtubule polymerization, block cell cycle progression, increase p53 protein stability and induce apoptosis.
However, fenbendazole has low water solubility and poor bioavailability which are major obstacles to its clinical application as an anti-cancer agent
Nanoparticles were loaded with fenbendazole to increase bioavailability
Results: natural form of fenbendazole significantly decreased cell proliferation of both chemosensitive and chemoresistant ovarian cancer cells
But in vivo (xenograft mouse models), only the nanoparticle fenbendazole formulation showed anticancer effects.
2023 Mar - Semkova et al - Redox-mediated Anticancer Activity of Anti-parasitic Drug Fenbendazole in Triple-negative Breast Cancer Cells
fenbendazole was tested on triple negative breast cancer cells, three different types including a highly metastatic type
Results: the highly metastatic breast cancer cells were more vulnerable to fenbendazole induced oxidative stress
2023 Mar - Haebeen Jung et al - Differential cytotoxic effects of fenbendazole on mouse lymphoma EL-4 cells and spleen cells
fenbendazole was tested on a mouse lymphoma cell line vs normal spleen cells
purpose of this study was to investigate the cytotoxic effects of fenbendazole on normal cells of the spleen, which is a major reservoir of immune cells
fenbendazole increased cell death of lymphoma cells but not of normal spleen cells
fenbendazole induced reactive oxygen species in lymphoma cells but not normal spleen cells
fenbendazole induced G2/M cell cycle arrest in lymphoma cells, not spleen cells
Conclusion: fenbendazole has anticancer effects on lymphoma cells but minimal toxicity on normal spleen cells.
2022 Sep - Deokbae Park et al - Anti-cancer effects of fenbendazole on 5-fluorouracil-resistant colorectal cancer cells
Benzimidazole anthelmintic agents have been recently repurposed to overcome cancers resistant to conventional therapies.
fenbendazole was tested on chemo resistant colorectal cancer cells
Results: fenbendazole significantly induces apoptosis as well as cell cycle arrest at G2/M phase on both colorectal cells and chemo resistant colorectal cancer cells.
Benzimidazole is historically known to bind beta-tubulin, disrupt microtubules, and arrest cell division
Benzimidazole is also known to activate p53 and p21 but decrease mutant p53 expression
in colorectal cancer cells: fenbendazole is presumed to activate p53-mediated apoptosis by increasing p53 expression(!), and partly necrosis, autophagy and ferroptosis
in chemo-resistant colorectal cancer cells: fenbendazole triggers apoptosis without affecting p53 expression, apoptosis was partly induced by Beclin-1, and further augmented by ferroptosis
6 mechanisms of action: (cell cycle arrest G2/M, activate p53-mediated apoptosis, autophagy, necroptosis, ferroptosis, Beclin-1 mediated apoptosis)
2022 Jan - Li-wen Ren et al - Benzimidazoles induce concurrent apoptosis and pyroptosis of human glioblastoma cells via arresting cell cycle
fenbendazole was tested against glioblastoma cancer cells
1. fenbendazole dose-dependently suppressed DNA synthesis
2. fenbendazole inhibited cell migration and invasion of GBM cells
3. fenbendazole also dose-dependently induced the GBM cell cycle arrest at the G2/M phase via the P53/P21/cyclin B1 pathway.
4. fenbendazole triggered pyroptosis of GBM cells (pyroptosis is a form of programmed cell death) through the NF-κB/NLRP3/GSDMD pathway
5. fenbendazole induced mitochondria-dependent apoptosis of GBM cells
6. flubendazole inhibited tumor growth of glioblastoma in vivo in a dose dependent manner (in a nude mouse U87 cell xenograft model)
Conclusion: “Taken together, our results demonstrated that benzimidazoles might be promising candidates for the treatment of GBM.”
2020 Aug - Deok-Soo Son et al - The Antitumor Potentials of Benzimidazole Anthelmintics as Repurposing Drugs
Benzimidazole anthelmintics have broad-spectrum action to remove parasites both in human and veterinary medicine
Due to their low cost and high efficacy, benzimidazole anthelmintics have been used throughout the world since their introduction in the 1960s
Benzimidazole anthelmintics are well-tolerated without severe side effects, and their decades of use provide a basis for safety in humans.
Benzimidazole anthelmintics selectively bind to β-tubulin of parasitic worms, causing their immobilization and death
In addition to being antiparasitic agents, benzimidazole anthelmintics are known to exert anticancer activities which are summarized (also see image at start of article):
disrupts microtubule polymerization
inhibits cancer cell viability
inhibits cancer cell migration and invasion
induces apoptosis and autophagy
increased cell cycle (G2/M) arrest
induces differentiation and senescence
inhibits angiogenesis
reduces colony formation and inhibits stem-ness in cancer cells
inhibits drug resistance and sensitize cells to conventional chemo
blocks glucose transport and impairs glucose utilization
Benzimidazole anthelmintics have been shown to inhibit cell viability in a variety of cancer cell lines, appearing as a promising medication:
breast cancer
leukemia
glioma & glioblastoma
lung cancer
hepatocellular carcinoma
rhabdomyosarcoma
medulloblastoma
urothelial cancer
2020 Jun - Yong Han et al - Involvement of reactive oxygen species in the anti-cancer activity of fenbendazole, a benzimidazole anthelmintic (leukemia)
In this study, we investigated whether Fenbendazole has anti-cancer activity in HL-60 cells, a human leukemia cell line
fenbendazole significantly decreased the metabolic activity of leukemia cells
fenbendazole decreased the mitochondrial membrane potential of leukemia cells in a concentration-dependent manner
fenbendazole increased apoptosis and necrosis of leukemia cells
Conclusion: fenbendazole exerts anti-cancer activity against leukemia cells, in part, via ROS production (reactive oxygen species)
2018 Aug - Dogra et al - Fenbendazole acts as a moderate microtubule destabilizing agent and causes cancer cell death by modulating multiple cellular pathways
Fenbendazole is known to have a high safety margin and most species tolerate it very well
Fenbendazole targets microtubules in human NSCLC Lung cancer cells
Fenbendazole treatment results in early G2/M block accompanied by cell death
Tumour cell lines with wild-type p53 show enhanced sensitivity to Fenbendazole induced apoptosis
Inhibition of glucose uptake by Fenbendazole sensitizes cancer cells to undergo apoptosis
Fenbendazole effectively inhibits colony formation of human NSCLC Lung Cancer cells in culture
In Vivo: Fenbendazole suppresses tumor growth
Fenbendazole possesses a unique ability to induce p53 to a considerably high level (!)
Conclusion: Altogether, our findings show microtubule disruption, p53 stabilization and interference with glucose metabolism as collective underlying mechanisms of Fenbendazole induced preferential elimination of cancer cells both in vitro and in vivo.
My Take…
Ivermectin is FDA approved.
Fenbendazole is NOT approved for human use by Food and Drug Administration (FDA) and European Medicines Agency (EMA). It is available as a veterinary medication.
Fenbendazole is part of a larger group of drugs known as benzimidazoles, which are anthelmintic drugs (i.e., drugs that kill parasitic worms). Another benzimidazole is mebendazole, which can be prescribed to humans with certain parasitic infections.
Mebendazole (Vermox) is FDA approved for human use, but it’s significantly more expensive. [2SG: and Fenbendazole is vastly superior.]
Why is Fenbendazole so popular? The Story of Joe Tippens and his terminal Stage 4 Small Cell Lung Cancer
Joe Tippens Cancer Protocol:
Fenbendazole 222mg per day with food (originally 3 days on, 4 days off)
Curcumin 600mg per day
CBD Oil: 25mg sublingually per day
Vitamin E: 800IU per day
[2SG: the improved ultimate protocol will be featured at the end of this article.]
Dr. Tom Rogers MD (Performance Medicine - Knoxville, TN) Suggests Several Protocols utilizing Fenbendazole which are interesting:
Fenbendazole For Cancer?
ACTIVE CANCER TREATMENT – For active cancer, take one capsule of Fenbendazole (444 mg) daily. Some people recommend you take one day off a week. Note: I think I would just take Sundays off. Again, you’re not supposed to develop a tolerance to this, but taking a little break is probably a good idea. To improve the protocol , take CBD oil (25mg) 1-2 drops every night before sleep. To strengthen the protocol take Curcumin (600mg) twice a day with food.
My Thoughts
Fenbendazole is not that controversial when you consider the scientific evidence objectively.
Fenbendazole has at least 12 proven anti-cancer mechanisms in vitro and in vivo:
disrupts microtubule polymerization (major mechanism)
induces cell cycle (G2/M) arrest
blocks glucose transport and impairs glucose utilization by cancer cells (major)
increases p53 tumor suppressor levels (major)
inhibits cancer cell viability (mTOR)
inhibits cancer cell migration and invasion (EMT pathway)
induces apoptosis
induces autophagy
induces pyroptosis and necrosis
induces differentiation and senescence
inhibits tumor angiogenesis
reduces colony formation and inhibits stem-ness in cancer cells
inhibits drug resistance and sensitizes cells to conventional chemo as well as radiation therapy
A very similar drug in the same family as Fenbendazole is FDA approved: Mebendazole, and it is in several Clinical Trials right now for brain cancers and colon cancers.
So why are there no Fenbendazole Clinical Trials for Cancer?
The answer seems rather obvious: it’s very cheap, it’s safe and it seems to be very effective.
Fenbendazole is not going to make anyone rich, and in cancer treatments, that is a non-starter.
What about COVID-19 mRNA Vaccine Induced Turbo Cancers?
Fenbendazole shows in vitro and/or in vivo activity against these cancers:
breast cancer (including triple negative breast cancer - which is seen in COVID-19 mRNA Vaccinated individuals with Turbo Cancer)
lymphomas (these are the most common COVID-19 mRNA Vaccine Turbo Cancers and there is more evidence for Fenbendazole with Lymphomas than with Ivermectin)
leukemias (most aggressive COVID-19 mRNA Vaccine Turbo Cancers)
glioblastomas and gliomas (extremely aggressive COVID-19 mRNA Vaccine Turbo Cancers)
lung cancer (NSCLC) (strong signal for COVID-19 mRNA Vaccine Turbo Cancers)
hepatocellular carcinoma (signal for COVID-19 mRNA Vaccine Turbo Cancers)
rhabdomyosarcomas (possible signal for COVID-19 mRNA Vaccine Turbo Cancers, sarcomas in general are on the rise)
ovarian cancers
urothelial cancers
CONCLUSION:
Although the anti-parasitic Fenbendazole is not FDA approved for human use, there is extensive evidence of anti-cancer effects in the published literature, both in vitro and in vivo, and this is not a controversial medication, as it has been made out to be.
Fenbendazole has an excellent safety profile and its close relative, Mebendazole is FDA approved, and it’s undergoing several Clinical Trials for Cancer Treatments in the US right now, including colon cancers and brain cancers.
I believe that it is a reasonable hypothesis that COVID-19 mRNA Vaccine Turbo Cancer patients could benefit significantly from either Mebendazole or Fenbendazole and I would love to see urgent clinical trials with both.
And adding Ivermectin to the Fenbendazole protocol provides the most synergistic ‘holy grail’ cancer cure in plain sight that may also treat Alzheimer’s, mood disorders, Parkinson’s, Lyme Disease, Alpha-Gal Syndrom from Lone Star Disease, myocarditis, Hashimoto’s Disease, shingles (herpes), arthritis, leukemia, Lupus, skin conditions, and various other “incurable” ailments, including gain of function viral releases, “vaccine” shedding, seasonal flu and even the common cold:
The Ultimate Disease Cure & Prophylaxis Protocol
Tocotrienol and Tocopherol forms (all 8) of Vitamin E (400-800mg per day, 7 days a week). A product called Gamma E by Life Extension or Perfect E are both great.
Bio-Available Curcumin (600mg per day, 2 pills per day 7 days a week). A product called Theracurmin HP by Integrative Therapeutics is bioavailable.
Vitamin D (62.5 mcg [2500 IU] seven days a week).
CBD oil (1-2 droppers full [equal to 167 to 334 mg per day] under the tongue, 7 days a week) CBD-X: The most potent full spectrum organic CBD oil, with 5,000 milligrams of activated cannabinoids and hemp compounds CBD, CBN & CBG per serving.
Fenbendazole (450mg, 7 days a week) or in the case of severe turbo cancers up to 1 gram — for MEGADOSE 1,350mg-2,000mg/day — for prophylaxis one 150mg tablet once or twice per week
Ivermectin (24mg, 7 days a week) or in the case of severe turbo cancers up to 1mg/kg/day — for MEGADOSE 120mg-200mg/day — for prophylaxis one 12mg tablet once or twice per week
Hydroxychloroquine (10mg/kg/day 7 days a week) - for prophylaxis one 200mg tablet once or twice per week
Doxycycline (100mg, 7 days a week for 30-60 days)
ImmunX immune support which also greatly increases the bioavailability of both Fenbendazole and Hydroxychloroquine (2 capsules per day) — for prophylaxis 2 capsules per day
Removing sugars and carbohydrates (cancer food) from your diet and replacing table sugar with a zero glycemic index, zero calorie, keto friendly rare sugar like AlluX
Do NOT comply.
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EDIT: image corrected.