Azacytidine During Anti-tuberculosis Therapy (AZA)
Tuberculosis, Pulmonary
About this trial
This is an interventional treatment trial for Tuberculosis, Pulmonary focused on measuring Tuberculosis, TB, Mycobacterium tuberculosis, Mtb, anti-TB therapy, ATT, rifampin (R), isoniazid (H) pyrazinamide (Z) ethambutol (E), RHZE, rifampin (R), isoniazid (H), RH
Eligibility Criteria
Inclusion Criteria:
- Age 18 years or older
- Microbiologically confirmed pulmonary Tuberculosis, including cavitary, lymph node or military pulmonary TB
- Asymptomatic by the end of intense phase ATT (8 weeks) and remains asymptomatic until AZA dosing.
- Acid-Fast Bacilli (AFB)-smear negative at the end of intensive phase.
- 1-month sputum culture negative and 2-month sputum with no growth at time of study entry.
- HIV-negative.
- Adequate hepatic function (direct bilirubin 1.5 x upper limit of normal (ULN) or less, alanine aminotransferase (ALT) and/or aspartate aminotransferase (AST) 1.5 x ULN or less) at the end of ATT intensive phase.
- Adequate renal function (creatinine 2 mg/dl or less and glomular filtration rate (GFR) 60 or greater).
- Written informed consent obtained
- Women and men of childbearing potential must agree to use 2 clinically effective methods of contraception (e.g., oral, intrauterine device [IUD], diaphragm plus spermicide, injectable, transdermal or implantable contraception) during the study and at least 3 months after the last treatment.
Exclusion Criteria:
- HIV-infection
- Pre-existing liver disease as defined by imaging or pathology consistent with moderate or worse firbrosis or cirrhosis (Metavir scoring system F2)
- Smear-positive at 2 months
- 1-month or 2 month sputum culture positive at time of study entry.
- Participants with extrapulmonary TB.
- History or current drug-resistant tuberculosis
- After consent and within two weeks before Investigational Product (IP), a study complete blood count (CBC) will be performed and individuals with cytopenias (Hemoglobin <12 g/dL, WBC < 3 cells/ mm3, Absolute Neutrophil Count (ANC) < 2,000 cells/mm3, or platelets < 110,000 platelets/mm3) will be excluded.
- Any concurrent uncontrolled medical condition, laboratory abnormality, or psychiatric illness which could place the patient at unacceptable risk of study treatment.
- Pregnant or breast feeding females.
- Uncontrolled systemic fungal, bacterial or viral infection (defined as ongoing signs/symptoms related the infection without improvement despite appropriate antibiotics, antiviral therapy and/or other treatment)
- History of inflammatory bowel disease (eg, Crohn's disease, ulcerative colitis), celiac disease (ie. sprue), prior gastrectomy or upper bowel removal, or any other gastrointestinal disorder or defect that would interfere with the absorption, distribution, metabolism or excretion of the study drug and/or predispose the subject to an increased risk of gastrointestinal toxicity
- Cancer (excluding surgically treated skin cancer) or hematologic malignancy currently active or active in the past three years.
- Abnormal coagulation parameters (Prothrombin Time (PT) >15 seconds, Partial Thromboplastin (PTT) >40 seconds, and/or international normalized ratio (INR) >1.5)
Significant active cardiac disease within the previous 6 months including:
- New York Heart Association (NYHA) class 4 congestive heart failure (CHF)
- Unstable angina
- Myocardial infarction
- Active viral infection with HIV or hepatitis type B or C
- Known or suspected hypersensitivity to azacytidine or mannitol
- Inability to give informed consent.
Sites / Locations
- Harris Health System - Ben Taub Hospital
Arms of the Study
Arm 1
Experimental
AZA Treatment
In Phase Ib dose escalation stage, participants will receive subcutaneous (SQ) AZA once daily x 5 days. Results from Phase Ib are sent to FDA/IRB for approval before proceeding to Phase IIa. 36 subjects will receive AZA treatment in total (Phase Ib/IIa). All participants receive standard of care antibiotics against tuberculosis. Dose Escalation Strategy to identify the lowest dose of AZA that decreases DNA methylation and restores immune function is listed below. Proceeding to Phase IIa will proceed if stopping criteria are met at any of the steps below and FDA/IRB approval is obtained: 5 mg/m^2 subcutaneous (SQ) once daily x 5 days for 8 individuals 15 mg/m^2 subcutaneous (SQ) once daily x 5 days for 8 individuals 30 mg/m^2 subcutaneous (SQ) once daily x 5 days for 8 individuals 50 mg/m^2 SQ once daily x 5 days for 8 individuals 75 mg/m^2 once daily x 5 days for 8 individuals