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Triapine with Chemotherapy and Radiation Therapy in Treating Patients with IB2-IVA Cervical or Vaginal Cancer

Trial Status: Active

This phase I trial studies the side effects and best dose of triapine when given with radiation therapy and cisplatin in treating patients with stage IB2-IVA cervical or vaginal cancer. Triapine may stop the growth of cancer cells by blocking an enzyme needed for cell growth. Cisplatin is a drug used in chemotherapy that kills cancer cells by damaging their deoxyribonucleic acid (DNA) and stopping them from dividing. Radiation therapy uses high-energy x-rays to kill tumor cells and shrink tumors. Adding triapine to standard treatment with cisplatin and radiation therapy may kill more cancer cells.

Inclusion Criteria

  • Patient has a new, untreated histologic diagnosis of stage IB2 (> 5 cm), II, IIIB,IIIC or IVA squamous, adenocarcinoma, or adenosquamous carcinoma of the uterine cervix or stage II-IVA squamous, adenocarcinoma, or adenosquamous carcinoma of the vagina not amenable to curative surgical resection alone; the presence or absence of para-aortic lymph node metastasis will be based on pre-therapy 18F-FDG PET/CT; the patient must be able to tolerate imaging requirements of an 18F-FDG PET/CT scan
  • Eastern Cooperative Oncology Group (ECOG) performance status score of 0, 1, or 2
  • Life expectancy greater than 6 months
  • Absolute neutrophil count (ANC) >= 1.5 x 10^9/L
  • Platelets >= 100 x 10^9/L
  • Hemoglobin (Hgb) >= 10.0 g/dL (blood transfusions to reach this amount are allowed)
  • Serum creatinine =< 1.5 mg/dL to receive weekly cisplatin * If serum creatinine is between 1.5 and 1.9 mg/dL, patients are eligible for cisplatin if the estimated creatinine clearance (CCr) is > 30 ml/min (for the purpose of estimating the CCr, the formula of Cockcroft and Gault for females should be used)
  • Total serum bilirubin =< 1.5 x upper limit of normal (ULN) (in patients with known Gilbert syndrome, a total bilirubin =< 3.0 x ULN, with direct bilirubin =< 1.5 x ULN)
  • Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x ULN
  • Able to take oral medication
  • Not pregnant and not breastfeeding; the effects of triapine on the developing human fetus are unknown; for this reason as well as because heterocyclic carboxaldehydethiosemicarbazones and radiation are known to be teratogenic, women of child-bearing potential and men must agree to use two forms of contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation; patient must have documented negative urine pregnancy test must be resulted within 7 days before initiating protocol therapy; should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately; because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with triapine, breastfeeding should be discontinued if the mother is treated with triapine; these potential risks may also apply to other agents used in this study
  • For human immunodeficiency virus (HIV) and hepatitis B/C (HEPB/C): * HIV-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible for the dose escalation portion of this trial; for those patients who are enrolled in the HIV positive (+) expansion cohort, they must be HIV infected and be on retroviral therapy with an undetectable viral load within 6 months of enrollment * For patients with evidence of chronic hepatitis B virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated * Patients with a history of hepatitis C virus (HCV) infection must have been treated and cured; for patients with HCV infection who are currently on treatment, they are eligible if they have an undetectable HCV viral load
  • Able to understand and willingness to sign a written informed consent document

Exclusion Criteria

  • Patient has had a prior invasive malignancy diagnosed within the last three years (except [1] non-melanoma skin cancer or [2] prior in situ carcinoma of the cervix)
  • Patients are excluded if they have received prior pelvic radiotherapy for any reason that would contribute radiation dose that would exceed tolerance of normal tissues at the discretion of the treating physician
  • Patients receiving any other investigational agents
  • Patients with known glucose-6-phosphate dehydrogenase deficiency (G6PD) are excluded due to an inability to administer the antidote for methemoglobinemia, methylene blue; pre-registration testing for G6PD is at the investigator’s discretion and is not required for study enrollment
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to triapine or cisplatin
  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection; symptomatic congestive heart failure; unstable angina pectoris; cardiac arrhythmia; known inadequately controlled hypertension; significant pulmonary disease including dyspnea at rest, patients requiring supplemental oxygen, or poor pulmonary reserve; or psychiatric illness/social situations that would limit compliance with study requirements
  • Patients with uncontrolled diabetes mellitus (fasting blood glucose controlled by medication, =< 200 mg/dL allowed)
  • Patients who have had a hysterectomy or are planning to have an adjuvant hysterectomy following radiation as part of their cervical cancer treatment are ineligible
  • Patients scheduled to be treated with adjuvant consolidation chemotherapy at the conclusion of their standard chemoradiation


Los Angeles
Los Angeles County-USC Medical Center
Contact: Site Public Contact
Phone: 323-865-0451
USC / Norris Comprehensive Cancer Center
Contact: Site Public Contact
Phone: 323-865-0451
Keck Medical Center of USC Pasadena
Contact: Site Public Contact
Phone: 323-865-0451


University of Kansas Clinical Research Center
Status: ACTIVE
Contact: Site Public Contact
Phone: 913-588-3671
Kansas City
University of Kansas Cancer Center
Status: ACTIVE
Contact: Site Public Contact
Phone: 913-588-3671
University of Kansas Hospital-Westwood Cancer Center
Status: ACTIVE
Contact: Site Public Contact
Phone: 913-588-3671


University of Kentucky / Markey Cancer Center
Status: ACTIVE
Contact: Site Public Contact
Phone: 859-257-3379


Wayne State University / Karmanos Cancer Institute
Status: ACTIVE
Contact: Site Public Contact
Phone: 313-576-9790
Farmington Hills
Weisberg Cancer Treatment Center
Status: ACTIVE
Contact: Site Public Contact
Phone: 313-576-9790

New Jersey

New Brunswick
Rutgers Cancer Institute of New Jersey
Status: ACTIVE
Contact: Site Public Contact
Phone: 732-235-7356


Oklahoma City
University of Oklahoma Health Sciences Center
Status: ACTIVE
Contact: Site Public Contact
Phone: 405-271-8777


University of Pittsburgh Cancer Institute (UPCI)
Status: ACTIVE
Contact: Site Public Contact
Phone: 412-647-8073


I. To determine the maximum tolerable dose (MTD) and recommended phase II dose (RP2D) of oral triapine when used in combination with cisplatin plus radiation therapy.

II. To determine the oral bioavailability of triapine.

III. To describe the pharmacokinetics (PK) of oral and intravenous triapine.


I. To determine whether the metabolic complete response (mCR) rate of oral triapine in combination with cisplatin chemoradiation using fludeoxyglucose F 18 (18F-FDG)-positron emission tomography (PET) computed tomography (CT) at post-therapy (3-month) is at least 70%.

II. To determine clinical overall response rate, progression-free survival, and overall survival.

III. To determine the correlation of methemoglobin proportion (%) and triapine pharmacokinetic exposure.


I. To determine whether active human immunodeficiency virus (HIV) antiretroviral therapy impacts the antitumor activity of triapine.

OUTLINE: This is a dose escalation study of triapine.

Patients undergo pelvic external beam radiation therapy (EBRT) or intensity modulated radiation therapy (IMRT) 5 days per week for 5 weeks (25 fractions) with a 3-day boost in week 6, and 1 or 2 applications of low dose rate (LDR) brachytherapy in week 6 or 5 fractions of high dose rate (HDR) brachytherapy at week 4 or 5. Patients also receive triapine intravenously (IV) over 120 minutes on day 1 and orally (PO) on days 2-5, 8-12, 15-19, 22-26, and 29-33 within 90 minutes after pelvic irradiation, and cisplatin IV over 60-120 minutes once weekly for 5 weeks (days 2, 9, 16, 23, and 30). Treatment continues in the absence of disease progression or unacceptable toxicity. Patients may receive a 6th cycle of cisplatin IV during the parametrial boost or any make-up radiation treatment in a sixth week of external beam radiotherapy.

After completion of study treatment, patients are followed up for 3 months.

Trial Phase Phase I

Trial Type Treatment

Lead Organization
University of Pittsburgh Cancer Institute LAO

Principal Investigator
Sarah E. Taylor

  • Primary ID 9892
  • Secondary IDs NCI-2015-01907, UPCI 15-157, 15-157
  • ID NCT02595879