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Richards GA, Zamparini J, Kalla I, Laher A, Murray LW, Shaddock EJ, Stacey S, Venter WF, Feldman C. Critical illness due to infection in people living with HIV. Lancet HIV 2024; 11:e406-e418. [PMID: 38816142 DOI: 10.1016/s2352-3018(24)00096-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 06/01/2024]
Abstract
People living with HIV comprise a substantial number of the patients admitted to intensive care. This number varies according to geography, but all areas of the world are affected. In lower-income and middle-income countries, the majority of intensive care unit (ICU) admissions relate to infections, whereas in high-income countries, they often involve HIV-associated non-communicable diseases diagnoses. Management of infections potentially resulting in admission to the ICU in people living with HIV include sepsis, respiratory infections, COVID-19, cytomegalovirus infection, and CNS infections, both opportunistic and non-opportunistic. It is crucial to know which antiretroviral therapy (ART) is appropriate, when is the correct time to administer it, and to be aware of any safety concerns and potential drug interactions with ART. Although ART is necessary for controlling HIV infections, it can also cause difficulties relevant to the ICU such as immune reconstitution inflammatory syndrome, and issues associated with ART administration in patients with gastrointestinal dysfunction on mechanical ventilation. Managing infection in people with HIV in the ICU is complex, requiring collaboration from a multidisciplinary team knowledgeable in both the management of the specific infection and the use of ART. This team should include intensivists, infectious disease specialists, pharmacists, and microbiologists to ensure optimal outcomes for patients.
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Affiliation(s)
- Guy A Richards
- Department of Surgery, Division of Critical Care, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
| | - Jarrod Zamparini
- Department of Internal Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Ismail Kalla
- Department of Internal Medicine, Division of Pulmonology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Abdullah Laher
- Department of Emergency Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Lyle W Murray
- Department of Internal Medicine, Division of Infectious Diseases, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Erica J Shaddock
- Department of Internal Medicine, Division of Pulmonology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Sarah Stacey
- Department of Internal Medicine, Division of Infectious Diseases, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Wd Francois Venter
- Wits Ezintsha, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Department of Public Health, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Charles Feldman
- Department of Internal Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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Abouzid M, Kosicka-Noworzyń K, Karaźniewicz-Łada M, Rao P, Modi N, Xie YL, Heysell SK, Główka A, Kagan L. Development and Validation of a UPLC-MS/MS Method for Therapeutic Drug Monitoring, Pharmacokinetic and Stability Studies of First-Line Antituberculosis Drugs in Urine. Molecules 2024; 29:337. [PMID: 38257250 PMCID: PMC10818978 DOI: 10.3390/molecules29020337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/04/2024] [Accepted: 01/06/2024] [Indexed: 01/24/2024] Open
Abstract
Tuberculosis (TB) remains one of the leading global causes of mortality. Several methods have been established to detect anti-TB agents in human plasma and serum. However, there is a notable absence of studies analyzing TB drugs in urine. Thus, our objective was to validate a method for quantifying first-line anti-TB agents: isoniazid (INH), pyrazinamide (PZA), ethambutol (ETH), and rifampicin (RIF), along with its metabolite 25-desacetylrifampicin, and degradation products: rifampicin quinone and 3-formyl-rifampicin in 10 µL of urine. Chromatographic separation was achieved using a Kinetex Polar C18 analytical column with gradient elution (5 mM ammonium acetate and acetonitrile with 0.1% formic acid). Mass spectrometry detection was carried out using a triple-quadrupole tandem mass spectrometer operating in positive ion mode. The lower limit of quantification (LLOQ) was 0.5 µg/mL for INH, PZA, ETH, and RIF, and 0.1 µg/mL for RIF's metabolites and degradation products. The method was validated following FDA guidance criteria and successfully applied to the analysis of the studied compounds in urine of TB patients. Additionally, we conducted a stability study of the anti-TB agents under various pH and temperature conditions to mimic the urine collection process in different settings (peripheral clinics or central laboratories).
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Affiliation(s)
- Mohamed Abouzid
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 3 Rokietnicka Street, 60-806 Poznań, Poland; (M.A.); (K.K.-N.)
- Doctoral School, Poznan University of Medical Sciences, 70 Bukowska Street, 60-812 Poznań, Poland
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ 08854, USA
| | - Katarzyna Kosicka-Noworzyń
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 3 Rokietnicka Street, 60-806 Poznań, Poland; (M.A.); (K.K.-N.)
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ 08854, USA
| | - Marta Karaźniewicz-Łada
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 3 Rokietnicka Street, 60-806 Poznań, Poland; (M.A.); (K.K.-N.)
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ 08854, USA
| | - Prakruti Rao
- Division of Infectious Diseases and International Health, University of Virginia, 345 Crispell Drive, Charlottesville, VA 22903, USA; (P.R.); (S.K.H.)
| | - Nisha Modi
- Public Health Research Institute, Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ 07013, USA; (N.M.); (Y.L.X.)
| | - Yingda L. Xie
- Public Health Research Institute, Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ 07013, USA; (N.M.); (Y.L.X.)
| | - Scott K. Heysell
- Division of Infectious Diseases and International Health, University of Virginia, 345 Crispell Drive, Charlottesville, VA 22903, USA; (P.R.); (S.K.H.)
| | - Anna Główka
- Department of Bromatology, Poznan University of Medical Sciences, 3 Rokietnicka Street, 60-806 Poznań, Poland;
| | - Leonid Kagan
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ 08854, USA
- Center of Excellence for Pharmaceutical Translational Research and Education, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ 08854, USA
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Akkerman OW, Dijkwel RDC, Kerstjens HAM, van der Werf TS, Srivastava S, Sturkenboom MGG, Bolhuis MS. Isoniazid and rifampicin exposure during treatment in drug-susceptible TB. Int J Tuberc Lung Dis 2023; 27:772-777. [PMID: 37749836 PMCID: PMC10519386 DOI: 10.5588/ijtld.22.0698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 05/15/2023] [Indexed: 09/27/2023] Open
Abstract
BACKGROUND: Observational real-world studies on therapeutic drug monitoring (TDM) in relation to pharmacokinetic (PK) target values are lacking. This study aims to describe the PK of rifampicin (RIF) and isoniazid (INH) in a real-world setting of patients with drug-susceptible TB in relation to frequently used threshold values.METHODS: A total of 116 patients with TB using standard doses of RIF and INH and who had TDM as part of clinical care were included. Maximum plasma concentration (Cmax) and 24 h area under the concentration time curve (AUC24) at standard and revised doses were described in relation to the threshold values (Cmax ≥8 mg/L for RIF and ≥3 mg/L for INH).RESULTS: For RIF (100 patients), median Cmax and median AUC24 were respectively 7.9 mg/L (IQR 6.0-11.0) and 35.8 mg*h/L (IQR 27.4-57.3) at the first TDM measurement after a standard dose of 600 mg. For INH (90 patients), median Cmax and median AUC24 were respectively 2.9 mg/L (IQR 1.3-2.5) and 12.5 mg*h/L (IQR 8.7-18.9) at the first TDM after a standard dose 300 mg. Overall, more than 50% of study participants had drug exposure below threshold values at the first TDM.CONCLUSION: Our study shows that the measured Cmax values for both RIF and INH were frequently below the pre-specified targets, emphasising the need for better justification of drug exposure targets. These TDM results highlight the need for validating PK targets of anti-TB drugs associated with clinically relevant outcomes.
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Affiliation(s)
- O W Akkerman
- Department of Pulmonary Diseases and Tuberculosis, University Medical Center Groningen, University of Groningen, Groningen, Tuberculosis Center Beatrixoord, University of Groningen, University Medical Center Groningen, Haren
| | - R D C Dijkwel
- Departments of Clinical Pharmacy and Pharmacology, and
| | - H A M Kerstjens
- Department of Pulmonary Diseases and Tuberculosis, University Medical Center Groningen, University of Groningen, Groningen
| | - T S van der Werf
- Department of Pulmonary Diseases and Tuberculosis, University Medical Center Groningen, University of Groningen, Groningen, Departments of Internal Medicine and Infectiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - S Srivastava
- Department of Medicine, The University of Texas Health Science Center at Tyler, Tyler, TX, USA, Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, TX, USA, Department of Center for Biomedical Research, The University of Texas Health Science Center at Tyler, Tyler, TX, USA
| | | | - M S Bolhuis
- Departments of Clinical Pharmacy and Pharmacology, and
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Ghimire S, Molinas G, Battaglia A, Martinez N, Gómez Paciello L, Aguirre S, Alffenaar JWC, Sturkenboom MGG, Magis-Escurra C. Dried Blood Spot Sampling to Assess Rifampicin Exposure and Treatment Outcomes among Native and Non-Native Tuberculosis Patients in Paraguay: An Exploratory Study. Pharmaceutics 2023; 15:pharmaceutics15041089. [PMID: 37111575 PMCID: PMC10146788 DOI: 10.3390/pharmaceutics15041089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 03/23/2023] [Accepted: 03/25/2023] [Indexed: 03/31/2023] Open
Abstract
The aim of this study was to evaluate the difference in drug exposure of rifampicin in native versus non-native Paraguayan populations using dried blood spots (DBS) samples collected utilizing a limited sampling strategy. This was a prospective pharmacokinetic study that enrolled hospitalized tuberculosis (TB) patients from both native and non-native populations receiving oral rifampicin 10 mg/kg once-daily dosing. Steady-state DBS samples were collected at 2, 4, and 6 h after intake of rifampicin. The area under the time concentration curve 0–24 h (AUC0–24) was calculated using a Bayesian population PK model. Rifampicin AUC0–24 < 38.7 mg*h/L was considered as low. The probability of target attainment (PTA) was calculated using AUC0–24/MIC > 271 as a target and estimated MIC values of 0.125 and 0.25 mg/L. In total, 50 patients were included. Native patients (n = 30) showed comparable drug exposure to the non-natives (n = 20), median AUC0–24 24.7 (17.1–29.5 IQR) and 21.6 (15.0–35.4 IQR) mg*h/L (p = 0.66), respectively. Among total patients, only 16% (n = 8) had a rifampicin AUC0–24 > 38.7 mg*h/L. Furthermore, PTA analysis showed that only 12 (24%) of the patients met a target AUC0–24 /MIC ≥ 271, assuming an MIC of 0.125 mg/L, which plummeted to 0% at a wild-type MIC of 0.25 mg/L. We successfully used DBS and limited sampling for the AUC0–24 estimation of rifampicin. Currently, our group, the EUSAT-RCS consortium, is preparing a prospective multinational, multicenter phase IIb clinical trial evaluating the safety and efficacy of high-dose rifampicin (35 mg/kg) in adult subjects using the DBS technique for AUC0–24 estimation.
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Affiliation(s)
- Samiksha Ghimire
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, 9712 CP Groningen, The Netherlands
- Correspondence:
| | - Gladys Molinas
- Instituto Nacional de Enfermedades Respiratorias y del Ambiente “Juan Max Boettner”, Asuncion 1430, Paraguay
| | - Arturo Battaglia
- Instituto Nacional de Enfermedades Respiratorias y del Ambiente “Juan Max Boettner”, Asuncion 1430, Paraguay
| | - Nilza Martinez
- Instituto Nacional de Enfermedades Respiratorias y del Ambiente “Juan Max Boettner”, Asuncion 1430, Paraguay
| | - Luis Gómez Paciello
- Instituto Nacional de Enfermedades Respiratorias y del Ambiente “Juan Max Boettner”, Asuncion 1430, Paraguay
| | - Sarita Aguirre
- Programa Nacional de Control de la Tuberculosis, Asuncion 1430, Paraguay
| | - Jan-Willem C. Alffenaar
- School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2006, Australia
- Westhead Hospital, West Mead, NSW 2145, Australia
- Sydney Institute of Infectious Diseases, The University of Sydney, Camperdown, NSW 2006, Australia
| | - Marieke G. G. Sturkenboom
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, 9712 CP Groningen, The Netherlands
| | - Cecile Magis-Escurra
- Department of Pulmonary Diseases, Radboud University Medical Center-TB Expert Center Dekkerswald, 6525 GA Nijmegen, The Netherlands
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