HIV Clinical Trial
Official title:
A Phase IIc Trial of Clofazimine- and Rifapentine-Containing Treatment Shortening Regimens in Drug-Susceptible Tuberculosis: The CLO-FAST Study
Verified date | July 2023 |
Source | National Institute of Allergy and Infectious Diseases (NIAID) |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
The purpose of this study is to compare a 3-month rifapentine (RPT)/clofazimine (CFZ)-containing regimen with CFZ loading dose versus 6-month standard of care (SOC) for drug-susceptible (DS) tuberculosis (TB).
Status | Active, not recruiting |
Enrollment | 104 |
Est. completion date | June 23, 2024 |
Est. primary completion date | June 23, 2024 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Pulmonary TB (among participants with or without history of prior TB treatment) identified within 5 days prior to entry by: - At least one sputum specimen positive for M. tuberculosis by molecular TB assay (Xpert) or line probe assay [LPA]) OR - At least one sputum specimen positive (1+ or greater) for acid-fast bacilli (AFB) on smear microscopy - Note: TB diagnosis for purposes of meeting inclusion criterion can be from a study testing laboratory or from an outside laboratory, as long as it is from a sputum sample collected within 5 days prior to entry. - Pulmonary TB diagnosed without known INH resistance (e.g., by LPA) and without known RIF resistance (e.g., by either LPA or Xpert). - Aged =18 years. - Absence of HIV-1 infection, as documented by any licensed rapid HIV test or HIV-1 enzyme or chemiluminescence immunoassay (E/CIA) test kit, within 30 days prior to entry OR - HIV-1 infection, documented by any licensed rapid HIV test or HIV-1 E/CIA test kit at any time prior to entry and confirmed by a licensed Western blot or a second antibody test by a method other than the initial rapid HIV and/or E/CIA, or by HIV-1 antigen or plasma HIV-1 RNA viral load. Two or more HIV-1 RNA viral loads of >1,000 copies/mL are also acceptable as documentation of HIV-1 infection. - For participants living with HIV, CD4+ cell count =100 cells/mm^3, obtained within 30 days prior to study entry at any network-approved non-US laboratory that is Immunology Quality Assessment (IQA) certified. - For participants living with HIV must be currently receiving or planning to initiate antiretroviral therapy (ART) at or before study week 8. - A verifiable address or residence readily accessible to facilitate directly observed therapy, and willingness to inform the study team of any change of address during the treatment and follow-up period. - The following laboratory values obtained at or within 5 days prior to entry by any US laboratory that has a Clinical Laboratory Improvement Amendments (CLIA) certification or its equivalent, or at any network-approved non-US laboratory that operates in accordance with Good Clinical Laboratory Practice (GCLP) and participates in appropriate external quality assurance programs. - Serum or plasma alanine aminotransferase (ALT) =3 times the upper limit of normal (ULN) - Serum or plasma total bilirubin =2.5 times ULN - Serum or plasma creatinine =2 times ULN - Serum or plasma potassium =3.5 mEq/L and =5.5 mEq/L - Absolute neutrophil count (ANC) =650/mm^3 - Hemoglobin =7.0 g/dL - Platelet count =50,000/mm^3 - For females of reproductive potential, negative serum or urine pregnancy test within 5 days prior to entry by any US clinic or laboratory that has a Clinical Laboratory Improvement Amendments (CLIA) certification or its equivalent, or is using a point of care (POC)/CLIA-waived test, or at any network-approved non-US laboratory or clinic that operates in accordance with Good Clinical Laboratory Practice (GCLP) and participates in appropriate external quality assurance programs. - Female participants of reproductive potential must agree not to participate in the conception process (i.e., active attempt to become pregnant, in vitro fertilization), and if participating in sexual activity that could lead to pregnancy, must agree to use at least one reliable nonhormonal method of contraception, as listed below, while on study treatment and for 30 days after stopping study medications. - Acceptable forms of contraception include: - Condoms - Intrauterine device or intrauterine system - Cervical cap with spermicide - Diaphragm with spermicide - Note: Hormonal birth control alone is not acceptable, as it may not be sufficiently reliable in combination with RPT or RIF. - Female participants who are not of reproductive potential must have documentation of menopause (i.e., at least 1 year amenorrheic), hysterectomy, or bilateral oophorectomy or bilateral tubal ligation. - Documentation of Karnofsky performance score =50 within 30 days prior to entry. - Documentation of either the presence or absence of advanced disease as determined by chest X-ray within 5 days prior to entry. - Ability and willingness of participant to provide informed consent. Exclusion Criteria: - More than 5 days of treatment directed against active TB for the current TB episode preceding study entry. - Pregnant or breast-feeding. - Unable to take oral medications. - Current receipt of clofazimine or bedaquiline or known receipt of clofazamine or bedaquiline at any time in the past. - QTcF interval >450 ms for men or >470 ms for women within 30 days prior to entry. - Weight <30 kg. - Current or planned use within 6 months following enrollment of one or more of the following medications: HIV protease inhibitors, HIV entry and fusion inhibitors, HIV non-nucleoside reverse transcriptase inhibitors (other than EFV), elvitegravir/cobicistat, bictegravir, quinidine, procainamide, amiodarone, sotalol, disopyramide, ziprasidone, or terfenadine. - Current extrapulmonary TB, in the opinion of the site investigator. - Current or history of known personal or family long QT syndrome. - Known allergy/sensitivity or any hypersensitivity to components of study TB drugs or their formulation. - Active drug, alcohol use or dependence; or mental illness (e.g., major depression) that, in the opinion of the site investigator, would interfere with adherence to study requirements. - Known history of acute intermittent porphyria. - Other medical conditions (e.g., severe uncontrolled diabetes, liver or kidney disease, blood disorders, peripheral neuritis, chronic diarrhea) in which the current clinical condition of the participant is likely to prejudice the response to, or assessment of, treatment. |
Country | Name | City | State |
---|---|---|---|
Haiti | Les Centres GHESKIO Clinical Research Site (GHESKIO-INLR) CRS | Port-au-Prince | |
India | Byramjee Jeejeebhoy Medical College (BJMC) CRS | Pune | |
Malawi | Blantyre CRS | Blantyre | |
Malawi | Malawi CRS | Lilongwe | Central |
South Africa | CAPRISA eThekwini CRS | Durban | Kwa Zulu Natal |
Zimbabwe | Milton Park CRS | Harare |
Lead Sponsor | Collaborator |
---|---|
National Institute of Allergy and Infectious Diseases (NIAID) |
Haiti, India, Malawi, South Africa, Zimbabwe,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Time to stable culture conversion in liquid media | Defined as the first of two (consecutive or non-consecutive) negative sputum cultures without an intervening positive culture, and/or visits wherein the participant is unable to produce sputum and has no signs of active TB | Measured through Week 12 | |
Primary | Proportion of participants across study arms experiencing any Grade 3 or higher adverse event (AE) that is at least a one grade increase from baseline | Graded according to the Division of AIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (DAIDS AE Grading Table), Corrected Version 2.1, July 2017 | Measured through Week 65 | |
Secondary | Proportion of participants with favorable clinical/bacteriologic outcome | Measured at Week 65 | ||
Secondary | Proportion of participants with favorable composite outcome including treatment completion | Measured at Week 65 | ||
Secondary | Proportion of participants across study arms who prematurely discontinue their treatment regimen | Defined as discontinuation other than due to violent death, natural disaster, or administrative censoring | Measured through Week 65 | |
Secondary | Mean QTcF change from baseline | Measured at Weeks 2, 8, and 13 (end of investigational treatment) | ||
Secondary | Occurrence of absolute QTcF =480 ms and =500 ms, and =500 ms at any time during study treatment | Measured through Week 65 | ||
Secondary | Occurrence of QTcF change from baseline of =30 ms and =60 ms, and =60 ms at any time during study treatment | Measured through Week 65 | ||
Secondary | Time to stable culture conversion in solid media | Defined as the first of two (consecutive or non-consecutive) negative sputum cultures without an intervening positive culture, and/or visits wherein the participant is unable to produce sputum and has no signs of active TB | Measured through Week 65 | |
Secondary | Proportion of participants with culture conversion across all study arms | Measured at Weeks 8 and 12 | ||
Secondary | Proportion of participants with one or more serious adverse events (SAEs) | Measured through Week 65 | ||
Secondary | Time (days) to positivity in liquid culture (MGIT) after start of treatment across study arms | Measured through Week 65 | ||
Secondary | Change in chest X-ray score from baseline to end of treatment in each Arm (week 13 in Arm 1, week 26 in Arm 2) | The chest X-ray will be posterior-anterior. Extent of disease (limited to one lobe or region, unilateral, bilateral, or diffuse) and cavitation status (cavities present [location] or absent) will be documented by validated numerical score for grading chest X-ray in adult smear-positive pulmonary TB (Thorax 2010; 65(10):863-9). | Measured through Week 65 | |
Secondary | Proportion of participants who have a TB relapse, from end of treatment until Week 65 | Measured through Week 65 | ||
Secondary | Proportion of participants who have a TB recurrence, from end of treatment until Week 65 | Measured through Week 65 | ||
Secondary | Pharmacokinetic parameter for CFZ: Minimum concentration (Cmin) | Estimated using noncompartmental methods applied to concentrations from intensive PK sampling visits at weeks 2 and 13. | Measured at Weeks 2 and 13 | |
Secondary | Pharmacokinetic parameter for CFZ: Maximum concentration (Cmax) | Estimated using noncompartmental methods applied to concentrations from intensive PK sampling visits at weeks 2 and 13. | Measured at Weeks 2 and 13 | |
Secondary | Pharmacokinetic parameter for CFZ: Time of Cmax (Tmax) | Estimated using noncompartmental methods applied to concentrations from intensive PK sampling visits at weeks 2 and 13. | Measured at Weeks 2 and 13 | |
Secondary | Pharmacokinetic parameter for CFZ: Area under the concentration curve (AUC0-24h) | Estimated using noncompartmental methods applied to concentrations from intensive PK sampling visits at weeks 2 and 13. | Measured at Weeks 2 and 13 |
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