A Phase II Single Center Single Arm Pilot Study Administering Danazol for Treatment of Cytopenias in Patients With Cirrhosis
This is a phase II pilot study designed to assess the safety and efficacy of danazol for treatment of cytopenias in patients with CPC A/B cirrhosis. Subjects with or without telomere mutations and/or shortened telomeres will be treated with danazol 600 mg per day by mouth for a duration of 24 months. The goal will be to treat a total of 10 patients.
• Age 18 years or older and able to provide informed consent
• ECOG 0-2
• Compensated Child-Pugh class A of any etiology with the exception of chronic hepatitis B with one or more of the following cytopenias
∙ Leukopenia defined as white blood cell count \<2000/mm3 or absolute neutrophil count \<1000/mm3 along with thrombocytopenia \<150,000/mm3 measured on two separate occasions at least 3 months apart within 6 months of enrollment
‣ Thrombocytopenia defined as platelet count \<50,000/mm3 along with white blood cell count \<4000/mm3 measured on two separate occasions at least 3 months apart within 6 months of enrollment
• Compensated Child-Pugh class B cirrhosis of any etiology with the exception of chronic hepatitis B with one or more of the following cytopenias:
• 1\. Leukopenia defined as white blood cell count ≤ 3500/mm3 measured on two separate occasions at least 3 months apart within 6 months of enrollment 3. Thrombocytopenia defined as platelet count ≤ 100,000/mm3 measured on two separate occasions at least 3 months apart within 6 months of enrollment
• Enrolled patients must have one or more of the following:
‣ Presence of a genetic variant (defined as a known mutation, variant likely to be pathogenic or variant of undetermined significance with likely deleterious effect on transcription or translation) in at least one of the following genes: TERT, TERC, RTEL1, DKC, NOP10, NHP2, TINF2, WRAP53
⁃ Shortened telomere length in peripheral blood mononuclear cells (defined as age-adjusted telomere length at or below the 5th percentile)
⁃ Of note, patient's found to have telomere mutations know to confer a gain of function will be excluded
• For women of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive methods that result in a failure rate of \< 1% per year during the treatment period
‣ A woman is considered to be of childbearing potential if she is postmenarcheal, has not reached a postmenopausal state (\>= 12 continuous months of amenorrhea with no identified cause other than menopause), and has not undergone surgical sterilization (removal of ovaries and/or uterus)
⁃ Examples of contraceptive methods with a failure rate of \< 1% per year include bilateral tubal ligation, male sterilization, proper use of hormonal contraceptives that inhibit ovulation, hormone-releasing intrauterine devices, and copper intrauterine devices
⁃ The reliability of sexual abstinence should be evaluated in relation to the duration of the clinical trial and the preferred and usual lifestyle of the patient; periodic abstinence (e.g., calendar, ovulation, symptothermal, or post ovulation methods) and withdrawal are not acceptable methods of contraception
• Women of childbearing potential (WOCBP) must have a negative serum test (minimum sensitivity 25 IU/L or equivalent units of human chorionic gonadotropin \[HCG\]) within 72 hours prior to the start of treatment