Early Phase 1
N=30
Inhibition of Oral Tumorigenesis by Antitumor B
Squamous Cell Cancer of the Oral Cavity
Bottom Line
View on ClinicalTrials.gov: NCT04278989 ↗Enrolled (actual)
30
Serious AEs
21.7%
Results posted
Mar 2026
Primary outcome: Primary: Percent of Ki-67 Positive Cells — .4023; .5872; .3732; .5035 percentage of stained tumor cell nuclei
Study Design & Population
- Study type
- Interventional
- Phase
- Early Phase 1
- Interventions
- Anti-tumor B (Drug)
- Age
- Adult, Older Adult · 18+ yrs
- Sex
- All
- Sponsor
- Medical College of Wisconsin
- Primary completion
- May 2025
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Percent of Ki-67 Positive Cells |
.4023; .5872; .3732; .5035 | — |
Summary
This is a window of opportunity study of Anti-tumor B (ATB). Anti-tumor B is a botanical agent composed of six Chinese herbs: Sophora tonkinensis, Polygonum bistorta, Prunella vulgaris, Sonchus brachyotus, Dictamnus dasycarpus, and Dioscorea bulbifera.
Eligibility Criteria
Inclusion Criteria
- Voluntary written consent must be given before performance of any study-related procedure not part of standard medical care, with the understanding that consent may be withdrawn by the subject at any time without prejudice to future medical care.
- In the event that the diagnosis of squamous cell cancer is made by an outside pathologist, hence not verified, the patient can start study agent administration but histological confirmation of squamous cell cancer (SCC) of the oral cavity (or histologic variants of SCC) by the pathologist must happen within seven days of registration in order to continue protocol therapy. Note: patients whose confirmatory biopsy fails to demonstrate invasive carcinoma will be excluded from continued participation in the study and considered a screen failure.
- Clinical stage II-IVA (as defined by the American Joint Committee on Cancer (AJCC), 8th Edition), and amenable to surgical resection.
- New diagnosis of oral SCC, new second primary, or recurrent oral SCC following a minimum remission of six months following previous definite surgery.
- History and physical examination by an otolaryngologist and medical oncologist within 14 calendar days of study registration.
- Zubrod/ECOG Performance status 0.9 mg/dl or 7 mg/dl or 40 mg/dl or 3 mmol/L or 130 mmol/L or < 155 mmol/L.
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2.
- Female subjects must meet one of the following:
- Postmenopausal for at least one year before enrollment, OR
- Surgically sterile (i.e., undergone a hysterectomy or bilateral oophorectomy), OR
- If subject is of childbearing potential (defined as not satisfying either of the above two criteria), agrees to practice two acceptable methods of contraception (combination methods require use of two of the following: diaphragm with spermicide, cervical cap with spermicide, contraceptive sponge, male or female condom, hormonal contraceptive) from the time of signing of the informed consent form through 21days after the last dose of study agent, OR
- Agrees to practice true abstinence when this is in line with the preferred and usual lifestyle of the subject. (Periodic abstinence [e.g., calendar, ovulation, symptothermal, postovulation methods] and withdrawal are not acceptable contraception methods.)
- Male subjects, even if surgically sterilized (i.e., status postvasectomy), must agree to one of the following:
- Practice effective barrier contraception during the entire study period and through 60 calendar days after the last dose of study agent, OR
- Agree to practice true abstinence when this is in line with the preferred and usual lifestyle of the subject. (Periodic abstinence [e.g., calendar, ovulation, symptothermal, postovulation methods] and withdrawal are not acceptable methods of contraception.)
- Enrollment on an interventional postoperative study is allowed if study agents do not overlap.
- Gastric tube drug administration is permissible.
Exclusion Criteria
- Pregnant or lactating women are ineligible due to unforeseeable risks to embryo or fetus.
- Concurrent use of any medicinal botanical, natural, or other herbal compounds.
- Planned subtotal or debulking surgery is not permissible.
- Prior systemic chemotherapy for oral SCC; note that prior chemotherapy for a different cancer is allowable.
- Prior radiotherapy for oral SCC is permissible if disease free for one year since prior oral cancer treatment and free of significant late radiation effects.
- Severe active comorbidity, such as uncontrolled cardiac disease, infection, and severe chronic obstructive pulmonary disease (COPD).
Data sourced from ClinicalTrials.gov (NCT04278989). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.