COMPLETED

Pyrimethamine as an Inhibitor of NRF2 in HPV-unrelated Locally Advanced Head and Neck Squamous Cell Carcinoma

Conditions

Head and Neck Cancer Cancer of the Head and Neck squamous cell carcinoma NRF2 pyrimethamine treatment resistance

Quick Navigation

Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

NRF2 activation, observed in up to 40% of head and neck squamous cell carcinoma (HNSCC) tumors, plays a critical role in tumor progression, metastasis, and radiation therapy resistance. The investigators have recently discovered that pyrimethamine (PYR) and its analogs have an inhibitory effect on NRF2 activity in vitro and in mouse models via inhibition of dihydrofolate reductase (DHFR). Pyrimethamine is an established drug that has been used for decades for treatment of protozoan infections and malaria. A growing body of research shows that it has potential antitumor activity, however its activity on growing human tumors has not been previously studied. The primary efficacy goal of this study is to evaluate the activity of pyrimethamine on human tumors as demonstrated by inhibition of DHFR and downregulation of NRF2 pathway activity. On-target inhibition of DHFR by pyrimethamine results in the stabilization and increased protein expression of human DHFR. The primary efficacy hypothesis of this study is that treatment with pyrimethamine will result in a 50% increase in DHFR protein within the tumor cells as measured by quantitative western blot analysis. Secondarily, among those tumors classified as NRF2-active on pre-treatment biopsy, the investigators hypothesize there will be a 50% reduction in NRF2 activity as measured by SureQuant targeted proteomic analysis.

Official Title

Early Phase I Window of Opportunity Biomarker and Safety Trial to Test Pyrimethamine as an Inhibitor of NRF2 in HPV-unrelated, Locally Advanced Head and Neck Squamous Cell Carcinoma

Quick Facts

Study Start:2023-08-03

Study Completion:2025-08-04

Study Type:Not specified

Phase:Not Applicable

Enrollment:Not specified

Status:COMPLETED

Study ID

NCT05678348

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Ages Eligible for Study:18 Years

Sexes Eligible for Study:ALL

Accepts Healthy Volunteers:No

Standard Ages:ADULT, OLDER_ADULT

Inclusion Criteria	Exclusion Criteria
* Histologically or cytologically confirmed, locally advanced (Stage III-IV) head and neck squamous cell carcinoma (HNSCC) undergoing surgical-based treatment with curative intent that is HPV-unrelated disease, defined as SCC of the oral cavity, larynx, or hypopharynx, p16 negative SCC of the oropharynx. * At least 18 years of age. * ECOG performance status ≤ 1 * Normal bone marrow and organ function as defined below: * Leukocytes ≥ 3.0 K/cumm * Absolute neutrophil count ≥ 1.5 K/cumm * Platelets ≥ 100 K/cumm * Total bilirubin ≤ 1.5 x IULN * AST(SGOT)/ALT(SGPT) ≤ 3.0 x IULN * Creatinine clearance \> 50 mL/min by Cockcroft-Gault * Able to swallow study drug * The effects of pyrimethamine on the developing human fetus are unknown. For this reason and because it is in Pregnancy Category C, women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control, abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she must inform her treating physician immediately. * Ability to understand and willingness to sign an IRB approved written informed consent document. * Patient must be able to undergo a research biopsy prior to starting treatment, or have previously banked baseline tumor biopsy of at least 20 mg of frozen tissue collected under Tissue Acquisition Protocol (IRB 201102323).	* Prior therapy for this cancer. * A history of other malignancy with the exception of malignancies for which all treatment was completed at least 2 years before registration and the patient has no evidence of disease. * Prior treatment with pyrimethamine in the year prior to HNSCC diagnosis. * Currently receiving any other investigational agents. * A history of allergic reactions attributed to compounds of similar chemical or biologic composition to pyrimethamine or other agents used in the study. * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, current use of systemic immunosuppressive medications, symptomatic congestive heart failure, unstable angina pectoris, or cardiac arrhythmia. * Documented megaloblastic anemia due to folate deficiency. * Treatment with anticoagulant or antiplatelet therapy in the year prior to HNSCC diagnosis. * Pregnant and/or breastfeeding. Women of childbearing potential must have a negative pregnancy test within 7 days of Day 1. * Patients with HIV are eligible unless their CD4+ T-cell counts are \< 350 cells/mcL or they have a history of AIDS-defining opportunistic infection within the 12 months prior to registration. Concurrent treatment with effective ART according to DHHS treatment guidelines is recommended. * Active alcohol abuse in the opinion of the treating physician. * Currently taking phenytoin

Inclusion Criteria

Exclusion Criteria

* Histologically or cytologically confirmed, locally advanced (Stage III-IV) head and neck squamous cell carcinoma (HNSCC) undergoing surgical-based treatment with curative intent that is HPV-unrelated disease, defined as SCC of the oral cavity, larynx, or hypopharynx, p16 negative SCC of the oropharynx.
* At least 18 years of age.
* ECOG performance status ≤ 1
* Normal bone marrow and organ function as defined below:
* Leukocytes ≥ 3.0 K/cumm
* Absolute neutrophil count ≥ 1.5 K/cumm
* Platelets ≥ 100 K/cumm
* Total bilirubin ≤ 1.5 x IULN
* AST(SGOT)/ALT(SGPT) ≤ 3.0 x IULN
* Creatinine clearance \> 50 mL/min by Cockcroft-Gault
* Able to swallow study drug
* The effects of pyrimethamine on the developing human fetus are unknown. For this reason and because it is in Pregnancy Category C, women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control, abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she must inform her treating physician immediately.
* Ability to understand and willingness to sign an IRB approved written informed consent document.
* Patient must be able to undergo a research biopsy prior to starting treatment, or have previously banked baseline tumor biopsy of at least 20 mg of frozen tissue collected under Tissue Acquisition Protocol (IRB 201102323).

* Prior therapy for this cancer.
* A history of other malignancy with the exception of malignancies for which all treatment was completed at least 2 years before registration and the patient has no evidence of disease.
* Prior treatment with pyrimethamine in the year prior to HNSCC diagnosis.
* Currently receiving any other investigational agents.
* A history of allergic reactions attributed to compounds of similar chemical or biologic composition to pyrimethamine or other agents used in the study.
* Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, current use of systemic immunosuppressive medications, symptomatic congestive heart failure, unstable angina pectoris, or cardiac arrhythmia.
* Documented megaloblastic anemia due to folate deficiency.
* Treatment with anticoagulant or antiplatelet therapy in the year prior to HNSCC diagnosis.
* Pregnant and/or breastfeeding. Women of childbearing potential must have a negative pregnancy test within 7 days of Day 1.
* Patients with HIV are eligible unless their CD4+ T-cell counts are \< 350 cells/mcL or they have a history of AIDS-defining opportunistic infection within the 12 months prior to registration. Concurrent treatment with effective ART according to DHHS treatment guidelines is recommended.
* Active alcohol abuse in the opinion of the treating physician.
* Currently taking phenytoin

Contacts and Locations

Principal Investigator

Paul Zolkind, M.D.

PRINCIPAL_INVESTIGATOR

Washington University School of Medicine

Study Locations (Sites)

Washington University School of Medicine

Saint Louis, Missouri, 63110

United States

Collaborators and Investigators

Sponsor: Washington University School of Medicine

Paul Zolkind, M.D., PRINCIPAL_INVESTIGATOR, Washington University School of Medicine

Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

Study Start Date2023-08-03

Study Completion Date2025-08-04

Study Record Updates

Study Start Date2023-08-03

Study Completion Date2025-08-04

Terms related to this study

Keywords Provided by Researchers

head and neck cancer
squamous cell carcinoma
NRF2
pyrimethamine
treatment resistance

Additional Relevant MeSH Terms

Head and Neck Cancer
Cancer of the Head and Neck