No lawsuit against the Williams Cancer Institute or its founder, Dr. Jason R. Williams, appears in publicly available court records or credible reporting through early 2026. No regulatory enforcement action and no medical board discipline have surfaced either. What has drawn attention is the clinic’s cash-only pricing, its operation of facilities in Mexico that use drugs unapproved by the FDA, and the limited peer-reviewed evidence supporting its signature protocols.
What the Public Record Actually Shows
A review of the available record turns up no civil suit, class action, or regulatory complaint naming the Williams Cancer Institute or Dr. Williams personally. Louisiana State Board of Medical Examiners disciplinary records show actions against several physicians named Williams, but none matches Dr. Jason R. Williams of the Williams Cancer Institute.1Louisiana State Board of Medical Examiners. Disciplinary Actions Detail Mississippi medical board records contain no relevant entries for him either.2Mississippi State Board of Medical Licensure. Board Actions
The absence of a filed case does not validate or invalidate the treatments the clinic offers. It means only that, as of now, no patient, regulator, or state board has produced a public complaint that has moved through the usual channels.
Why Patients Ask About a Lawsuit
The interest in whether anyone has sued tracks with what the clinic charges and how it charges. The Williams Cancer Institute does not publish prices, requires cash payment, and does not bill insurance.3Jake Seliger. The Williams Cancer Clinic Treatment Costs and How Much Another Day Is Worth
The most detailed public account of what a patient is quoted comes from the late writer Jake Seliger, who sought treatment options for advanced cancer in mid-2024. Seliger reported that the institute recommended a course of three to six treatments at $25,000 to $30,000 each, roughly $200,000 out of pocket. He called the price excessive for therapy “unlikely to do more than buy a few months of extra time” and described the target market as “the super rich and/or suckers.” He also called the lack of published pricing “ominous,” suspecting the clinic evaluates patients individually based on ability to pay.3Jake Seliger. The Williams Cancer Clinic Treatment Costs and How Much Another Day Is Worth
The institute has said treatment in Mexico can be significantly cheaper than in the U.S., citing an immunotherapy drug that costs $10,000 domestically but $1,000 in Mexico.4Williams Cancer Institute. Why Choose Us
The Evidence Behind the Treatments
The institute specializes in intratumoral immunotherapy: injecting cancer drugs directly into tumors rather than delivering them intravenously, often paired with ablation techniques that destroy tumor tissue. Drugs like Opdivo (nivolumab) and Keytruda (pembrolizumab), which the FDA approved for intravenous use in specific cancers, are injected directly into tumors at the clinic.3Jake Seliger. The Williams Cancer Clinic Treatment Costs and How Much Another Day Is Worth Physicians may legally prescribe FDA-approved drugs off-label, but the safety and efficacy of injecting these drugs directly into tumors has not been established through the large-scale trials the FDA requires for formal approval.5National Cancer Institute. Off-Label Drug Use in Cancer Treatment
The institute’s website describes its results as “very promising” but publishes no trial numbers or peer-reviewed data of its own to support that claim.6Williams Cancer Institute. Benefits of Intratumoral Immunotherapy for Cancer Patients The institute’s most recent original research to appear in a peer-reviewed setting was a single-patient case study presented at the 2025 Society for Immunotherapy of Cancer annual meeting, describing one patient with advanced head and neck cancer who reportedly experienced full tumor resolution by 22 months after pulsed electric field ablation combined with intratumoral immunotherapy.7OncDaily. Williams Cancer Institute A single case sits at the lowest rung of clinical evidence.
An earlier publication carries a more specific warning. A 2015 paper in the Journal for ImmunoTherapy of Cancer, associated with Cancer Immune Biologics (where Williams served as scientific officer), received a formal “expression of concern” from the journal in November 2023. The paper had described human case studies involving cryoablation combined with intratumoral checkpoint inhibitors.8National Center for Biotechnology Information. Image-Guided Cryoablation Combined With Intratumoral Injection of Anti-CTLA-4 and PD-1 Immune Checkpoint Inhibitors An expression of concern flags potential problems with a paper’s integrity, methodology, or data without going as far as a retraction.
Mexico Clinics and the FTC Precedent
The institute runs clinics in Florida, California, Cabo San Lucas, and Mexico City.9Williams Cancer Institute. About Us It has said it operates in Mexico partly to use immunotherapy drugs the FDA has not approved.4Williams Cancer Institute. Why Choose Us
The FTC has previously pursued this model. In 2002 it obtained a settlement against BioPulse International, which ran a Tijuana clinic offering unsubstantiated cancer treatments costing up to $39,900. The company agreed to a permanent bar on misrepresenting treatment efficacy, with a suspended $4.3 million judgment attached.10Federal Trade Commission. Company Touting Unproven Cancer Treatment Agrees to Settle FTC Charges No comparable action has been publicly reported against the Williams Cancer Institute.
Dr. Williams’s Background
Dr. Jason R. Williams earned his medical degree from Louisiana State University Health Sciences Center and completed residency in diagnostic radiology at the University of South Alabama Medical Center. He is board-certified by the American Board of Radiology.11Williams Cancer Institute. Dr. Jason Williams He holds an adjunct professorship at Case Western Reserve University School of Medicine and is a founding member of the Society of Interventional Oncology.9Williams Cancer Institute. About Us His training is in radiology rather than medical oncology, though his career has focused on interventional oncology for more than two decades.
He has also served as chief medical officer of BioViva Science, a gene therapy company known for claims about reversing aging; a 2020 interview noted that he had administered follistatin, a myostatin inhibitor, to himself.12Lifeboat Foundation. Gene Therapy Today With Dr. Jason Williams and Liz Parrish
What This Means If You’re Considering Treatment
The absence of a lawsuit is a fact, not a clean bill of health. The public record shows an operation that charges seriously ill patients six-figure sums for cash-only experimental procedures, runs much of its work outside U.S. regulatory jurisdiction, and rests primarily on its own marketing rather than independent clinical evidence. Anyone weighing treatment there should ask for written pricing in advance, request the specific published data behind the protocol being recommended, and consult an oncologist not affiliated with the clinic before committing funds.