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McHale TC, Boulware DR, Kasibante J, Ssebambulidde K, Skipper CP, Abassi M. Diagnosis and management of cryptococcal meningitis in HIV-infected adults. Clin Microbiol Rev 2023; 36:e0015622. [PMID: 38014977 PMCID: PMC10870732 DOI: 10.1128/cmr.00156-22] [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] [Indexed: 11/29/2023] Open
Abstract
Cryptococcal meningitis is a leading cause of morbidity and mortality globally, especially in people with advanced HIV disease. Cryptococcal meningitis is responsible for nearly 20% of all deaths related to advanced HIV disease, with the burden of disease predominantly experienced by people in resource-limited countries. Major advancements in diagnostics have introduced low-cost, easy-to-use antigen tests with remarkably high sensitivity and specificity. These tests have led to improved diagnostic accuracy and are essential for screening campaigns to reduce the burden of cryptococcosis. In the last 5 years, several high-quality, multisite clinical trials have led to innovations in therapeutics that have allowed for simplified regimens, which are better tolerated and result in less intensive monitoring and management of medication adverse effects. One trial found that a shorter, 7-day course of deoxycholate amphotericin B is as effective as the longer 14-day course and that flucytosine is an essential partner drug for reducing mortality in the acute phase of disease. Single-dose liposomal amphotericin B has also been found to be as effective as a 7-day course of deoxycholate amphotericin B. These findings have allowed for simpler and safer treatment regimens that also reduce the burden on the healthcare system. This review provides a detailed discussion of the latest evidence guiding the clinical management and special circumstances that make cryptococcal meningitis uniquely difficult to treat.
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Affiliation(s)
- Thomas C. McHale
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - David R. Boulware
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - John Kasibante
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | | | - Caleb P. Skipper
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Mahsa Abassi
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
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McHale TC, Akampurira A, Gerlach ES, Mucunguzi A, Nicol MR, Williams DA, Nielsen K, Bicanic T, Fieberg A, Dai B, Meya DB, Boulware DR. 5-Flucytosine Longitudinal Antifungal Susceptibility Testing of Cryptococcus neoformans: A Substudy of the EnACT Trial Testing Oral Amphotericin. Open Forum Infect Dis 2023; 10:ofad596. [PMID: 38143852 PMCID: PMC10745249 DOI: 10.1093/ofid/ofad596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 11/21/2023] [Indexed: 12/26/2023] Open
Abstract
Background The EnACT trial was a phase 2 randomized clinical trial conducted in Uganda, which evaluated a novel orally delivered lipid nanocrystal (LNC) amphotericin B in combination with flucytosine for the treatment of cryptococcal meningitis. When flucytosine (5FC) is used as monotherapy in cryptococcosis, 5FC can induce resistant Cryptococcus mutants. Oral amphotericin B uses a novel drug delivery mechanism, and we assessed whether resistance to 5FC develops during oral LNC-amphotericin B therapy. Methods We enrolled Ugandans with HIV diagnosed with cryptococcal meningitis and who were randomized to receive 5FC and either standard intravenous (IV) amphotericin B or oral LNC-amphotericin B. We used broth microdilution to measure the minimum inhibitory concentration (MIC) of the first and last cryptococcal isolates in each participant. Breakpoints are inferred from 5FC in Candida albicans. We measured cerebral spinal fluid (CSF) 5FC concentrations by liquid chromatography and tandem mass spectrometry. Results Cryptococcus 5FC MIC50 was 4 µg/mL, and MIC90 was 8 µg/mL. After 2 weeks of therapy, there was no evidence of 5FC resistance developing, defined as a >4-fold change in susceptibility in any Cryptococcus isolate tested. The median CSF 5FC concentration to MIC ratio (interquartile range) was 3.0 (1.7-5.5) µg/mL. There was no association between 5FC/MIC ratio and early fungicidal activity of the quantitative rate of CSF yeast clearance (R2 = 0.004; P = .63). Conclusions There is no evidence of baseline resistance to 5FC or incident resistance during combination therapy with oral or IV amphotericin B in Uganda. Oral amphotericin B can safely be used in combination with 5FC.
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Affiliation(s)
- Thomas C McHale
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | | | - Elliot S Gerlach
- Department of Microbiology & Immunology, University of Minnesota, Minneapolis, Minnesota, USA
| | | | - Melanie R Nicol
- Department of Experimental and Clinical Pharmacology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Darlisha A Williams
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Kirsten Nielsen
- Department of Microbiology & Immunology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Tihana Bicanic
- Institute of Infection and Immunity, St Georges, University of London, London, UK
| | - Ann Fieberg
- Division of Biostatistics, School of Public Health, University of Minnesota, Minneapolis, Minnesota, USA
| | - Biyue Dai
- Division of Biostatistics, School of Public Health, University of Minnesota, Minneapolis, Minnesota, USA
| | - David B Meya
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - David R Boulware
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
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Osborn MR, Spec A, Mazi PB. Management of HIV-Associated Cryptococcal Meningitis. CURRENT FUNGAL INFECTION REPORTS 2023. [DOI: 10.1007/s12281-023-00458-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Harrison TS, Lawrence DS, Mwandumba HC, Boulware DR, Hosseinipour MC, Lortholary O, Meintjes G, Mosepele M, Jarvis JN. How Applicable Is the Single-Dose AMBITION Regimen for Human Immunodeficiency Virus-Associated Cryptococcal Meningitis to High-Income Settings? Clin Infect Dis 2023; 76:944-949. [PMID: 36166405 PMCID: PMC9989135 DOI: 10.1093/cid/ciac792] [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: 07/01/2022] [Revised: 09/05/2022] [Accepted: 09/23/2022] [Indexed: 11/12/2022] Open
Abstract
The AmBisome Therapy Induction Optimization (AMBITION-cm) trial, conducted in eastern and southern Africa, showed that a single, high dose (10 mg/kg) of liposomal amphotericin B, given with an oral backbone of fluconazole and flucytosine, was noninferior to the World Health Organization (WHO)-recommended regimen of 7 days of amphotericin B deoxycholate plus flucytosine for treatment of human immunodeficiency virus (HIV)-associated cryptococcal meningitis and has been incorporated into WHO treatment guidelines. We believe that the trial also has important implications for the treatment of HIV-associated cryptococcal meningitis in high-income settings. We advance the arguments, supported by evidence where available, that the AMBITION-cm trial regimen is likely to be as fungicidal as the currently recommended 14-day liposomal amphotericin-based treatments, better tolerated with fewer adverse effects, and confer significant economic and practical benefits and, therefore, should be included as a treatment option in guidance for HIV-associated cryptococcal treatment in high-income settings.
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Affiliation(s)
- Thomas S Harrison
- Institute of Infection and Immunity, St George's University London, London, United Kingdom
- Clinical Academic Group in Infection and Immunity, St George's University Hospitals NHS Foundation Trust, London, United Kingdom
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter, United Kingdom
| | - David S Lawrence
- Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Henry C Mwandumba
- Clinical Sciences Department, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
- Malawi-Liverpool-Wellcome Clinical Research Programme, Blantyre, Malawi
- Department of Medicine, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - David R Boulware
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
- Division of Infectious Diseases and International Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Mina C Hosseinipour
- Lilongwe Medical Relief Trust (University of North Carolina Project), Lilongwe, Malawi
- Department of Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Olivier Lortholary
- Institut Pasteur, National Center for Scientific Research, Molecular Mycology Unit and National Reference Center for Invasive Mycoses and Antifungals, Unités Mixtes de Recherche 2000, Paris, France
- Université de Paris-Cité, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, Hôpital Necker Enfants Malades, Assistance Publique–Hôpitaux de Paris, IHU Imagine, Paris, France
| | - Graeme Meintjes
- Wellcome Centre for Infectious Diseases Research in Africa, Institute of Infectious Disease and Molecular Medicine, Cape Town, South Africa
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Mosepele Mosepele
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
- Department of Internal Medicine, University of Botswana, Gaborone, Botswana
| | - Joseph N Jarvis
- Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
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Cherabie J, Mazi P, Rauseo AM, Ayres C, Larson L, Rutjanawech S, O’Halloran J, Presti R, Powderly WG, Spec A. Long-Term Mortality after Histoplasma Infection in People with HIV. J Fungi (Basel) 2021; 7:jof7050369. [PMID: 34066845 PMCID: PMC8150352 DOI: 10.3390/jof7050369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/04/2021] [Accepted: 05/06/2021] [Indexed: 11/20/2022] Open
Abstract
Histoplasmosis is a common opportunistic infection in people with HIV (PWH); however, no study has looked at factors associated with the long-term mortality of histoplasmosis in PWH. We conducted a single-center retrospective study on the long-term mortality of PWH diagnosed with histoplasmosis between 2002 and 2017. Patients were categorized into three groups based on length of survival after diagnosis: early mortality (death < 90 days), late mortality (death ≥ 90 days), and long-term survivors. Patients diagnosed during or after 2008 were considered part of the modern antiretroviral therapy (ART) era. Insurance type (private vs. public) was a surrogate indicator of socioeconomic status. Out of 54 PWH infected with histoplasmosis, overall mortality was 37%; 14.8% early mortality and 22.2% late mortality. There was no statistically significant difference in survival based on the availability of modern ART (p = 0.60). Insurance status reached statistical significance with 38% of survivors having private insurance versus only 8% having private insurance in the late mortality group (p = 0.05). High mortality persists despite the advent of modern ART, implicating a contribution from social determinants of health, such as private insurance. Larger studies are needed to elucidate the role of these factors in the mortality of PWH.
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Mejia-Chew C, Sung A, Larson L, Powderly WG, Spec A. Treatment and mortality outcomes in patients with other extrapulmonary cryptococcal disease compared with central nervous system disease. Mycoses 2020; 64:174-180. [PMID: 33065769 DOI: 10.1111/myc.13199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/09/2020] [Accepted: 10/10/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUND Determining the extent of cryptococcal disease (CD) is key to therapeutic management. Treatment with fluconazole is only recommended for localised pulmonary disease. Induction therapy with amphotericin B (AmB) and flucytosine is recommended for disease at other sites, irrespective of central nervous system (CNS) involvement, but this is not often followed in patients without meningitis. In this study, we compared treatment and mortality between patients with CD of the CNS and other extrapulmonary (OE) sites. METHODS This is a retrospective, single-centre study of all hospitalised patients with nonpulmonary cryptococcal infection from 2002 to 2015 who underwent lumbar puncture. Demographics, predisposing factors, comorbidities, clinical presentation, laboratory values, antifungal treatment and mortality data were collected to evaluate 90-day mortality and treatment differences between patients with OE and CNS CD. Survival analysis was performed using multivariable Cox regression analysis. RESULTS Of 193 patients analysed, 143 (74%) had CNS CD and 50 (26%) had OE CD. Ninety-day mortality was 23% and similar between the OE and CNS CD groups (22% vs 23%, p = .9). In the comorbidity-adjusted multivariable Cox regression model, mortality risk was similar in the OE and CNS groups. Fewer patients with OE CD received induction therapy with AmB and flucytosine compared to those with CNS disease (28% vs 71.3%, p < .001). CONCLUSION Patients with OE CD had similar 90-day mortality compared to those with CNS disease. Despite current guideline recommendations, patients with OE disease were less likely to receive appropriate induction therapy with AmB and flucytosine compared to patients with CNS disease.
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Affiliation(s)
- Carlos Mejia-Chew
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Abby Sung
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Lindsey Larson
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - William G Powderly
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Andrej Spec
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
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Performance of the Lateral Flow Assay and the Latex Agglutination Serum Cryptococcal Antigen Test in Cryptococcal Disease in Patients with and without HIV. J Clin Microbiol 2020; 58:JCM.01563-20. [PMID: 32848037 DOI: 10.1128/jcm.01563-20] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 08/18/2020] [Indexed: 12/16/2022] Open
Abstract
Cryptococcal epidemiology is shifting toward HIV-negative populations who have diverse presentations. Cryptococcal antigen (CrAg) testing is also changing, with development of the lateral flow assay (LFA) having reported increased sensitivity and specificity, but with minimal knowledge in the HIV-negative population. In this study, we evaluate the real-life performance of CrAg testing in patients with cryptococcal disease. We conducted a retrospective review of patients with cryptococcosis from 2002 to 2019 at Barnes-Jewish Hospital. Latex agglutination (LA) was used exclusively until April 2016, at which point LFA was used exclusively. Demographics, presentations, and testing outcomes were evaluated. Serum CrAg testing was completed in 227 patients with cryptococcosis. Of 141 HIV-negative patients, 107 had LA testing and 34 had LFA testing. In patients with disseminated disease, serum CrAg sensitivity by LA was 78.1% compared to 82.6% for LFA. In patients with localized pulmonary disease, serum CrAg sensitivity was 23.5% compared to 90.9% for LFA. Of 86 people living with HIV (PLWH), 76 had LA testing, and 10 had LFA testing. Serum CrAg sensitivity for LA was 94.7% compared to 100% for LFA in patients with disseminated disease. We noted a significant improvement in sensitivity from LA testing to LFA testing, predominantly in those with localized pulmonary disease. However, both LFA and LA appear to be less sensitive in HIV-negative patients than previously described in PLWH.
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Salazar AS, Keller MR, Olsen MA, Nickel KB, George IA, Larson L, Powderly WG, Spec A. Potential missed opportunities for diagnosis of cryptococcosis and the association with mortality: A cohort study. EClinicalMedicine 2020; 27:100563. [PMID: 33205031 PMCID: PMC7648127 DOI: 10.1016/j.eclinm.2020.100563] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/04/2020] [Accepted: 09/11/2020] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Cryptococcosis is one of the most common life-threatening opportunistic mycoses worldwide. Insidious presentation and slow onset of symptoms make it difficult to recognize, complicating the diagnostic process. Delays in diagnosis may lead to increased mortality. We aim to determine the frequency of missed opportunities for diagnosis of cryptococcosis and its effects on mortality. METHODS To estimate the proportion of individuals with a potentially missed diagnosis for cryptococcosis in hospitalized patients, we conducted a retrospective cohort study using the Healthcare Cost and Utilization Project State Inpatient Databases from 2005 to 2015 from eight states. All hospitalized adult patients diagnosed with cryptococcal infection or cryptococcal meningitis were included. Potentially missed diagnoses were defined as admissions coded for a procedure or diagnosis suggestive of cryptococcosis in the 90-days prior to the initial cryptococcosis admission. Generalized estimating equations models were used to evaluate the association between underlying comorbidities and potential missed diagnosis of cryptococcosis and 90-day all-cause in-hospital mortality. FINDINGS Of 5,354 patients with cryptococcosis, 2,445 (45·7%) were people living with HIV (PLWH). Among PLWH, 493/2,445 (20·2%) had a potentially missed diagnosis, of which 83/493 (16·8%) died while hospitalized compared with 265/1,952 (13·6%) of those without a potentially missed diagnosis (relative risk [RR] 1·04, 95% CI 0·99-1·09). Among HIV-negative patients, 977/2,909 (33·6%) had a potentially missed diagnosis, of which 236/977 (24·2%) died while hospitalized compared with 298/1,932 (15·4%) of those not missed (RR 1·12, 95% CI 1·07-1·16). INTERPRETATION Missed opportunities to diagnose cryptococcosis are common despite highly efficacious diagnostic tests and are associated with increased risk of 90-day mortality in HIV-negative patients. A high index of clinical suspicion is paramount to promptly diagnose, treat, and improve cryptococcosis-related mortality. FUNDING National Center for Advancing Translational Sciences, Washington University Institute of Clinical and Translational Sciences, and the Agency for Healthcare Research and Quality.
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Affiliation(s)
- Ana S Salazar
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine in St. Louis, 4523 Clayton Ave., Campus Box 8051, St Louis, MO 63110-0193, United Statess
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine in St. Louis, 660 S. Euclid Ave, Campus Box 8100, St. Louis, MO 63110-0193, USA
| | - Matthew R Keller
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine in St. Louis, 4523 Clayton Ave., Campus Box 8051, St Louis, MO 63110-0193, United Statess
| | - Margaret A Olsen
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine in St. Louis, 4523 Clayton Ave., Campus Box 8051, St Louis, MO 63110-0193, United Statess
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine in St. Louis, 660 S. Euclid Ave, Campus Box 8100, St. Louis, MO 63110-0193, USA
| | - Katelin B Nickel
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine in St. Louis, 4523 Clayton Ave., Campus Box 8051, St Louis, MO 63110-0193, United Statess
| | - Ige A George
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine in St. Louis, 4523 Clayton Ave., Campus Box 8051, St Louis, MO 63110-0193, United Statess
| | - Lindsey Larson
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine in St. Louis, 4523 Clayton Ave., Campus Box 8051, St Louis, MO 63110-0193, United Statess
| | - William G Powderly
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine in St. Louis, 4523 Clayton Ave., Campus Box 8051, St Louis, MO 63110-0193, United Statess
| | - Andrej Spec
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine in St. Louis, 4523 Clayton Ave., Campus Box 8051, St Louis, MO 63110-0193, United Statess
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