5-aza-4'-Thio-2'-Deoxycytidine (Aza-TdC) in People With Advanced Solid Tumors

Recruiting now · Phase 1

Conditions studied: Neoplasms, Solid Tumors

In brief

Background: Blood, tissue, and tumor cells contain genes. Genes are made up of DNA. DNA is the "instruction book" for each cell. In some people with cancer, the genes that might have slowed the growth of their tumor were "turned off." Researchers want to see if a new drug can turn the genes back on and slow the tumor growth. The drug is called Aza-TdC. Objective: To test the safety of Aza-TdC, and to find out the dose of this drug that can be safely given to humans. Eligibility: People ages 18 and older who have advanced cancer that has gotten worse after standard treatment, or for which no effective therapy exists Design: Participants will be screened with: Medical history Blood and urine tests Scans to measure their tumors Test to measure the electrical activity of the heart Participants will take the study drug by mouth. The drug is given in cycles. Each cycle is 21 days (3 weeks) long. Week 1 and week 2: participants will take the study drug once a day for 5 days. Then they will have 2 days without the drug. Week 3: no study drug is taken. This completes one cycle of treatment. For cycle 1, participants will repeat the screening tests several times. For all other cycles, participants will have blood tests and pregnancy tests. They will have scans of their tumor every 6 weeks. The cycle will be repeated as long as the participant tolerates the drug and the cancer is either stable or gets better. Sponsoring Institute: National Cancer Institute

Key facts

Study ID

NCT03366116

Run by

National Cancer Institute (NCI)

People needed

75

Starts

2018-11-05

Expected to finish

2026-09-30

Last updated by the study team

2026-08-10

Who can join

Age: 18 and older, up to 120. Sex: any. Healthy volunteers: not accepted.

You may not qualify if…

• Patients who are receiving any other investigational agents.
• Pregnant women and women who are breastfeeding are excluded from this study.
• Patients with clinically significant illnesses which would compromise participation in the study, including, but not limited to active or uncontrolled infection, immune deficiencies, known HIV infection requiring protease inhibitor therapy, known Hepatitis B, known Hepatitis C, uncontrolled diabetes, uncontrolled hypertension, symptomatic congestive heart failure, unstable angina pectoris, myocardial infarction within the past 6 months, uncontrolled cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
• Patients with known primary central nervous system (CNS) malignancy or symptomatic CNS metastases are excluded, with the following exceptions:
• Patients with asymptomatic untreated CNS disease may be enrolled, provided all of the following criteria are met:
• Evaluable or measurable disease outside the CNS
• No metastases to brain stem, midbrain, pons, medulla, or cerebellum
• No history of intracranial hemorrhage or spinal cord hemorrhage
• No ongoing requirement for dexamethasone for CNS disease; patients on a stable dose of anticonvulsants are permitted.
• No neurosurgical resection or brain biopsy within 28 days prior to Cycle 1, Day 1
• Patients with treated CNS metastases may be enrolled, provided all the criteria listed above are met as well as the following:
• No stereotactic radiation or whole-brain radiation within 14 days prior to Cycle 1, Day 1
• Screening CNS radiographic study 2 weeks from completion of radiotherapy and >=1 week from discontinuation of corticosteroids. The presence of new CNS mets will not exclude the patient but provide a baseline. If the irradiated lesion showed increased edema or growth, patient may be enrolled if asymptomatic but a repeat MRI should be done within the next 2-4 weeks for follow up.
• Malabsorption syndrome or other conditions that would interfere with intestinal absorption.

Where it is running

• National Institutes of Health Clinical Center — Bethesda, Maryland, United States (enrolling)

Full record on ClinicalTrials.gov

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