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E7 TCR T Cells for Human Papillomavirus-Associated Cancers

A Phase I/II Trial of T Cell Receptor Gene Therapy Targeting HPV-16 E7 for HPV-Associated Cancers

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02858310
Enrollment
224
Registered
2016-08-08
Start date
2017-01-27
Completion date
2025-07-02
Last updated
2026-03-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Papillomavirus Infections, Cervical Intraepithelial Neoplasia, Carcinoma In Situ, Vulvar Neoplasms, Vulvar Diseases

Keywords

Immunotherapy, Human Papillomavirus, Vulvar Intraepithelial Neoplasia, Vulvar High Grade Squamous Intraepithelial Lesion, Vaccine, HPV-related Malignancy, HPV-related Carcinoma, HPV-related Cervical Carcinoma, HPV-related Anal Squamous Cell Carcinoma, HPV Positive Oropharyngeal Squamous Cell Cancer

Brief summary

Background: Human papillomavirus (HPV) can cause cervical, throat, anal, and genital cancers. Cancers caused by HPV have an HPV protein called E7 inside of their cells. In this new therapy, researchers take a person's blood, remove certain white blood cells, and insert genes that make them to target cancer cells that have the E7 protein. The genetically changed cells, called E7 T cell receptor (TCR) cells, are then given back to the person to fight the cancer. Researchers want to see if this can help people. Objective: To determine a safe dose and efficacy of E7 TCR cells and whether these cells can help patients. Eligibility: Adults ages 18 and older with an HPV-16-associated cancer, including cervical, vulvar, vaginal, penile, anal, or oropharyngeal. Design: Participants will list all their medicines. Participants will have many screening tests, including imaging procedures, heart and lung tests, and lab tests. They will have a large catheter inserted into a vein. Participants will have leukapheresis. Blood will be removed through a needle in the arm. A machine separates the white blood cells. The rest of the blood is returned through a needle in the other arm. The cells will be changed in the lab. Participants will stay in the hospital. Over several days, they will get: Chemotherapy drugs E7 TCR cells Shots or injections to stimulate the cells Participants will be monitored in the hospital up to 12 days. They will get support medicine and have blood and lab tests. Participants will have a clinic visit about 40 days after cell infusion. They will have a physical exam, blood work, scans, and maybe x-rays. Participants will have many follow-up visits with the same procedures. At some visits, they may undergo leukapheresis. Participants will be followed for 15 years.

Detailed description

Background: * Metastatic or refractory/recurrent human papillomavirus (HPV)-16+ cancers (cervical, vulvar, vaginal, penile, anal, and oropharyngeal cancers) are incurable and poorly palliated by standard therapies. * HPV-16+ cancers constitutively express the HPV-16 E7 oncoprotein, which is absent from healthy human tissues. * Administration of T cell receptor (TCR) gene engineered T cells can induce objective tumor responses in certain malignancies including HPV-16+ cancers. * T cells genetically engineered with a TCR targeting HPV-16 E7 (E7 TCR) display specific reactivity against human leukocyte antigen (HLA)-A2+, HPV-16+ target cells. Objectives: Phase I Primary Objective \- To determine a safe dose for E7 TCR cells plus aldesleukin for the treatment of metastatic HPV-16+ cancers. Phase II Primary Objective -To determine safety and efficacy of E7 TCR cells plus aldesleukin for the treatment of metastatic HPV-16+ cancers. Eligibility: * Patients greater than or equal to 18 years old with metastatic or refractory/recurrent HPV-16+ cancer. * Prior first line systemic therapy is required unless the patient declines standard treatment. * Patients must be HLA-A\*02:01-positive. Design: * This is a phase I/II clinical trial that will test the safety and efficacy of E7 TCR cells. * All patients will receive a non-myeloablative lymphocyte-depleting preparative regimen of cyclophosphamide and fludarabine followed by a single infusion of E7 TCR cells. Cell infusion will be followed by high dose aldesleukin. * Re-enrollment will be allowed for a small number of subjects.

Interventions

BIOLOGICALE7 TCR cells

T cells genetically engineered with a T cell receptor (TCR) targeting human papillomavirus (HPV -16 E7 (E7 TCR) that display specific reactivity against human leukocyte antigen (HLA-A2+, HPV-16+ target cells.

DRUGAldesleukin

Following cell infusion, the patient receives high-dose bolus aldesleukin, which is dosed to individual patient tolerance. Aldesleukin improves the survival of E7 T cell receptor (TCR) cells after infusion.

DRUGFludarabine

Part of the non-myeloablative lymphocyte-depleting preparative regimen.

DRUGCyclophosphamide

Part of the non-myeloablative lymphocyte-depleting preparative regimen.

DIAGNOSTIC_TESTEKG

Screening/Baseline. Follow-up (end of treatment).

PROCEDUREBiopsy

Screening/Baseline. Following treatment (6 weeks post treatment preferred) and at disease progression only.

DIAGNOSTIC_TESTChest CT and MRI or PET

Screening/Baseline. Follow-up (end of treatment). 40 days (+/- 2 weeks) after cell infusion; additional visits as indicated.

DIAGNOSTIC_TESTPFT

Screening/Baseline.

DRUGGranisetron

Supportive medication for nausea/vomiting/anorexia. 0.01 mg/kg intravenous (IV) every(q) day as needed (prn).

DRUGOndansetron

Supportive medication for nausea/vomiting/anorexia. Ondansetron 10mg intravenous (IV) every(q) 8 hours(hr) as needed (prn).

Supportive medication for nausea/vomiting/anorexia. 1mg intravenous (IV) at 4-6 hours(h) as needed (prn).

Supportive medication for nausea/vomiting/anorexia. 25mg per rectum (PR) as needed (prn) or 10mg intravenous (IV) every(q) 6hours(h) prn.

DRUGDiphenoxylate HCL

Supportive medication for diarrhea. 2.5mg by mouth (po) every(q) 3 hours(h) as needed (prn).

Supportive medication for diarrhea. 25mcg by mouth (po) every(q) 3 hours(h) as needed (prn).

Supportive medication for diarrhea. 30-60mg by mouth (po) every(q) 4 hours(h) as needed (prn).

DRUGLoperamide

Supportive medication for diarrhea. 2mg by mouth (po) every(q) 3 hours(h) as needed (prn).

DRUGIndomethacin

Supportive medication for fever. 50-75mg by mouth (po) every(q) 8 hours(h).

DRUGAcetaminophen

Supportive medication for fever. 650mg by mouth (po) every 4 hours (q) 4hr.

Supportive medication for pruritis. 25-50mg by mouth (po) every 4 hours (q) 4hr as needed (prn).

Supportive medication for pruritis. 10-20mg by mouth (po) every 6 hours(h), as needed (prn).

DRUGMeperidine

Supportive medication for chills. 25-50mg intravenous (IV) every 1 hour (q1hr), as needed (prn).

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 120 Years
Healthy volunteers
No

Inclusion criteria

* INCLUSION CRITERIA: 1. Measurable metastatic or refractory/recurrent human papillomavirus (HPV-16+ cancer (determined by in situ hybridization (ISH) or a polymerase chain reaction (PCR)-based test). 2. Patients must be human leukocyte antigen (HLA-A\*02 by low resolution typing, and HLA-A\*02:01 by one of the high-resolution type results. 3. All patients must have received prior first line standard therapy or declined standard therapy. 4. Patients with three or fewer brain metastases that have been treated with surgery or stereotactic radiosurgery are eligible. Lesions that have been treated with stereotactic radiosurgery must be clinically stable for one month before protocol treatment. Patients with surgically resected brain metastases are eligible. 5. Greater than or equal to 18 years of age. 6. Able to understand and sign the Informed Consent Document. 7. Clinical performance status of Eastern Cooperative Oncology Group (ECOG) 0 or 1. 8. Individuals must be willing to practice birth control from the time of enrollment on this study up to twelve (12) months after treatment. Individuals must be willing to undergo testing for HPV-16 prior to becoming pregnant after this period. 9. Individuals of childbearing potential must have a negative pregnancy test because of the potentially dangerous effects of the treatment on the fetus. Individuals of childbearing potential are defined as all individuals except individuals who are postmenopausal or who have had a hysterectomy. Postmenopausal will be defined as individuals over the age of 55 who have not had a menstrual period in at least one year. Because there is a potential risk for adverse events in nursing infant's secondary to treatment of the mother with E7 T cell receptor (TCR) transduced peripheral blood lymphocytes (PBLs), breastfeeding should be discontinued if the individual is treated with E7 TCR transduced PBL. These potential risks may also apply to other agents used in this study. 10. Serology: * Seronegative for human immunodeficiency virus (HIV) antibody. (The experimental treatment being evaluated in this protocol depends on an intact immune system. Patients who are HIV seropositive can have decreased immune-competence and thus are less responsive to the experimental treatment and more susceptible to its toxicities.) * Seronegative for hepatitis B antigen, and seronegative for hepatitis C antibody. If hepatitis C antibody test is positive, then the patient must be tested for the presence of antigen by reverse transcription-polymerase chain reaction (RT-PCR) and be hepatitis C virus (HCV) ribonucleic acid (RNA) negative. a. Hematology: * Absolute neutrophil count greater than 1000/mm\^3 without the support of filgrastim. * White blood count (WBC) greater than or equal to 3000/mm\^3 * Platelet count greater than or equal to 100,000/mm\^3 * Hemoglobin \> 8.0 g/dL b. Chemistry: * Serum Alanine aminotransferase (ALT)/Aspartate aminotransferase (AST) less than or equal to 2.5 times the upper limit of normal * Calculated creatinine clearance (CCr) greater than or equal to 50 mL/min/1.73\^2 using the Cockcroft-Gault equation * Total bilirubin less than or equal to 1.5 mg/dL, except in patients with Gilbert's Syndrome who must have a total bilirubin less than 3.0 mg/dL c. More than four weeks must have elapsed since any prior systemic therapy at the time the patient receives the E7 TCR cells. Note: Patients may have undergone minor surgical procedures within the past three weeks, as long as all toxicities have recovered to Grade 1 or less.

Exclusion criteria

1. Active systemic infections (for e.g.: requiring anti-infective treatment), coagulation disorders or other active major medical illnesses of the cardiovascular, respiratory or immune system, as evidenced by a positive stress thallium or comparable test, myocardial infarction, cardiac arrhythmias, severe obstructive or restrictive pulmonary disease. Patients with abnormal pulmonary function tests but stable obstructive or restrictive pulmonary disease may be eligible. 2. Any form of primary immunodeficiency (such as Severe Combined Immunodeficiency Disease). 3. Concurrent opportunistic infections (The experimental treatment being evaluated in this protocol depends on an intact immune system. Patients who have decreased immune competence may be less responsive to the experimental treatment and more susceptible to its toxicities). 4. Patients with autoimmune diseases such as Crohn's disease, ulcerative colitis, rheumatoid arthritis, autoimmune hepatitis or pancreatitis, and systemic lupus erythematosus. Hypothyroidism, vitiligo and other minor autoimmune disorders are not exclusionary. 5. Patients on immunosuppressive drugs including corticosteroids. With the exception of: intranasal, inhaled, topical steroids, or local steroid injection (e.g., intra-articular injection) -Systemic corticosteroids at physiologic doses 10 mg/day of prednisone or equivalent; or, -Steroids as premedication for hypersensitivity reactions (e.g., computed tomography (CT) scan premedication) 6. History of severe immediate hypersensitivity reaction to cyclophosphamide, fludarabine or aldesleukin. 7. Patients with a history of coronary revascularization or ischemic symptoms unless patient has a normal cardiac stress test. 8. Documented left ventricular ejection fraction (LVEF) of less than or equal to 45% tested. The following patients will undergo cardiac evaluations 1. Clinically significant atrial and/or ventricular arrhythmias including but not limited to: atrial fibrillation, ventricular tachycardia, second or third degree heart block or 2. Age greater than or equal to 50 years old 9. Any other condition, which would, in the opinion of the Principal Investigator, indicate that the subject is a poor candidate for the clinical trial or would jeopardize the subject or the integrity of the data obtained. 10. Subjects with baseline screening pulse oxygen level of \< 95% on room air will not be eligible. If the underlying cause of hypoxia improves, then they may be reevaluated

Design outcomes

Primary

MeasureTime frameDescription
Phase II: Overall Response Rate Partial Response + Complete Response (PR +CR)At 12 weeks, every 3 months x 3, and every 6 months for approximately 5 yearsResponse was assessed by the Response Evaluation Criteria in Solid Tumors (RECIST) guideline (version 1.1). Compete Response is disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm. Partial Response is at least a 30% decrease in the sum of the diameters of target lesions, taking as reference the baseline sum of diameters.
Phase I: Number of Dose Limiting Toxicities (DLT)From the day of cell infusion (Day 0) to Day +30Adverse events were assessed by the Common Terminology Criteria for Adverse Events v4.0. Grade 3 is serious. Grade 4 is life-threatening. Grade 5 is death related to adverse event. A DLT is defined as all Grade 3 and greater toxicities occurring within 30 days of the cell infusion with the exception of: Cytokine Release Syndrome (CRS) that resolves ≤ grade 2 within 14 days of the last dose of aldesleukin. Autoimmune toxicity that resolves to ≤ grade 2 within 14 days for starting symptom treatment (e.g. steroids). Cardiac, gastrointestinal, dermatological, hepatic, pulmonary, renal, hematologic, neurologic toxicity, or toxicity in Appendix C of the protocol attributable to aldesleukin that resolves to ≤ grade 2 within 14 days of the last dose of aldesleukin. Transient grade 3 hypoxia associated with cell infusion that corrects to ≤ grade 2 with supplemental oxygen and/or that resolves to ≤ grade 2 within 24 hours or before starting aldesleukin.

Secondary

MeasureTime frameDescription
Progression-free SurvivalFrom the time of cell infusion (Day 0) until documented progressive disease; a maximum of 12 monthsProgression-free survival is the time from start of treatment to disease progression or death from any cause. Disease progression was assessed by the Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. Disease progression is at least a 20% increase in the sum of the diameters of target lesions, taking as reference the smallest sum on study. The appearance of one or more new lesions is also considered progressions.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORScott M Norberg, D.O.

National Cancer Institute (NCI)

Participant flow

Pre-assignment details

All enrolled participants are counted. Participants enrolled and not treated are included in the table.

Baseline characteristics

Characteristic
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
20 Participants
Age, Categorical
Between 18 and 65 years
204 Participants
Age, Continuous52.32 years
STANDARD_DEVIATION 10.5
Race/Ethnicity, Customized
Ethnicity: Hispanic or Latino
0 Participants
Race/Ethnicity, Customized
Ethnicity: Not Hispanic or Latino
177 Participants
Race/Ethnicity, Customized
Ethnicity: Unknown or Not Reported
0 Participants
Race/Ethnicity, Customized
Race: American Indian or Alaska Native
1 Participants
Race/Ethnicity, Customized
Race: Asian
6 Participants
Race/Ethnicity, Customized
Race: Asian White
1 Participants
Race/Ethnicity, Customized
Race: Black or African American
0 Participants
Race/Ethnicity, Customized
Race: Black/White
0 Participants
Race/Ethnicity, Customized
Race: Indian or Alaska Native White
0 Participants
Race/Ethnicity, Customized
Race: More than one race
0 Participants
Race/Ethnicity, Customized
Race: Native Hawaiian or Other Pacific Islander
0 Participants
Race/Ethnicity, Customized
Race: Other
1 Participants
Race/Ethnicity, Customized
Race: Unknown or Not Reported
8 Participants
Race/Ethnicity, Customized
Race: White
164 Participants
Region of Enrollment
United States
3 participants
Sex: Female, Male
Female
111 Participants
Sex: Female, Male
Male
1 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
0 / 30 / 30 / 60 / 185 / 194
other
Total, other adverse events
3 / 33 / 36 / 618 / 180 / 0
serious
Total, serious adverse events
3 / 33 / 35 / 65 / 180 / 0

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 10, 2026