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Webendoerfer M, Konik M, Zettler M, Wienker J, Rawitzer J, Esser S, Kehrmann J, Herrmann K, Reinhardt HC, Witzke O, Dolff S. Hypercalcemia as a rare manifestation of immune reconstitution inflammatory syndrome (IRIS) in a person living with Human Immunodeficiency Virus (HIV) with disseminated nontuberculous mycobacteriosis. Infection 2024:10.1007/s15010-024-02228-7. [PMID: 38521838 DOI: 10.1007/s15010-024-02228-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 03/05/2024] [Indexed: 03/25/2024]
Abstract
INTRODUCTION Granulomatosis due to immune reconstitution inflammatory syndrome (IRIS) and disseminated Mycobacterium avium-intracellulare (M. avium) infection may trigger hypercalcemia. Here, we report a rare case of hypercalcemia and acute kidney damage related to IRIS in a person living with Human Immunodeficiency Virus (HIV). CASE PRESENTATION A 39-year-old male person living with HIV presented with muscle weakness and unwanted weight loss of 8 kg within the last 2 weeks. Laboratory findings included serum hypercalcemia of 3.27 mmol/mL associated with elevated calcitriol and acute kidney damage. Since the first diagnosis of HIV and concomitant disseminated M. avium infection, the patient received antiretroviral therapy (ART), rifabutin, clarithromycin, and ethambutol. 18Fluoro-D-glucose positron emission computed tomography (18FDG-PET/CT) showed progressive multilocular lymphadenopathy. Biopsy specimen from the duodenum as well as retroperitoneal and mediastinal lymph nodes revealed granulomatous inflammation consistent with IRIS. Treatment with forced diuresis, bisphosphonates, and calcitonin normalized serum calcium and kidney function recovered. CONCLUSION Hypercalcemia due to IRIS is a rare differential diagnosis in persons living with HIV and may lead to acute kidney damage, despite sufficient ART and antimycobacterial treatment.
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Affiliation(s)
- Maximilian Webendoerfer
- Department of Medical Oncology, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Hufelandstraße 55, 45147, Essen, Germany.
- Department of Infectious Diseases, West German Center of Infectious Diseases, Essen University Hospital, University of Duisburg-Essen, Hufelandstraße 55, 45147, Essen, Germany.
| | - Margarethe Konik
- Department of Infectious Diseases, West German Center of Infectious Diseases, Essen University Hospital, University of Duisburg-Essen, Hufelandstraße 55, 45147, Essen, Germany
| | - Markus Zettler
- Department of Infectious Diseases, West German Center of Infectious Diseases, Essen University Hospital, University of Duisburg-Essen, Hufelandstraße 55, 45147, Essen, Germany
| | - Johannes Wienker
- Department of Pneumology, University Hospital Essen - Ruhrlandklinik, University of Duisburg-Essen, Tüschener Weg 40, 45239, Essen, Germany
| | - Josefine Rawitzer
- Institute for Pathology and Neuropathology, University Hospital Essen, University of Duisburg-Essen, Hufelandstraße 55, 45147, Essen, Germany
| | - Stefan Esser
- Department of Dermatology and Venereology, HIV Outpatient Clinic, University Hospital Essen, University of Duisburg-Essen, Hufelandstraße 55, 45147, Essen, Germany
| | - Jan Kehrmann
- Institute of Medical Microbiology, University Hospital Essen, University of Duisburg-Essen, Hufelandstraße 55, 45147, Essen, Germany
| | - Ken Herrmann
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen, Hufelandstraße 55, 45147, Essen, Germany
| | - Hans Christian Reinhardt
- Department of Hematology and Stem Cell Transplantation, University Hospital Essen, University of Duisburg-Essen, Hufelandstraße 55, 45147, Essen, Germany
| | - Oliver Witzke
- Department of Infectious Diseases, West German Center of Infectious Diseases, Essen University Hospital, University of Duisburg-Essen, Hufelandstraße 55, 45147, Essen, Germany
| | - Sebastian Dolff
- Department of Infectious Diseases, West German Center of Infectious Diseases, Essen University Hospital, University of Duisburg-Essen, Hufelandstraße 55, 45147, Essen, Germany
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Coelho LE, Chazallon C, Laureillard D, Escada R, N’takpe JB, Timana I, Messou E, Eholie S, Khosa C, Chau GD, Cardoso SW, Veloso VG, Delaugerre C, Molina JM, Grinsztejn B, Marcy O, De Castro N. Incidence and Predictors of Tuberculosis-associated IRIS in People With HIV Treated for Tuberculosis: Findings From Reflate TB2 Randomized Trial. Open Forum Infect Dis 2024; 11:ofae035. [PMID: 38486816 PMCID: PMC10939434 DOI: 10.1093/ofid/ofae035] [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: 12/14/2023] [Accepted: 01/18/2024] [Indexed: 03/17/2024] Open
Abstract
Background After antiretroviral therapy (ART) initiation, people with HIV (PWH) treated for tuberculosis (TB) may develop TB-associated immune reconstitution inflammatory syndrome (TB-IRIS). Integrase inhibitors, by providing a faster HIV-RNA decline than efavirenz, might increase the risk for this complication. We sought to assess incidence and determinants of TB-IRIS in PWH with TB on raltegravir- or efavirenz-based ART. Methods We conducted a secondary analysis of the Reflate TB 2 trial, which randomized ART-naive PWH on standard TB treatment, to receive raltegravir- or efavirenz-based ART. The primary objective was to evaluate the incidence of TB-IRIS. Incidence rate ratio comparing TB-IRIS incidence in each arm was calculated. Kaplan-Meier curves were used to compare TB-IRIS-free survival probabilities by ART arm. Cox regression models were fitted to analyze baseline characteristics associated with TB-IRIS. Results Of 460 trial participants, 453 from Brazil, Côte d'Ivoire, Mozambique, and Vietnam were included in this analysis. Baseline characteristics were median age 35 years (interquartile range [IQR], 29-43), 40% female, 69% pulmonary TB only, median CD4, 102 (IQR, 38-239) cells/mm³, and median HIV RNA, 5.5 (IQR, 5.0-5.8) log copies/mL. Forty-eight participants developed TB-IRIS (incidence rate, 24.7/100 PY), 19 cases in the raltegravir arm and 29 in the efavirenz arm (incidence rate ratio 0.62, 95% confidence interval .35-1.10). Factors associated with TB-IRIS were: CD4 ≤ 100 cells/μL, HIV RNA ≥500 000 copies/mL, and extrapulmonary/disseminated TB. Conclusions We did not demonstrate that raltegravir-based ART increased the incidence of TB-IRIS compared with efavirenz-based ART. Low CD4 counts, high HIV RNA, and extrapulmonary/disseminated TB at ART initiation were associated with TB-IRIS.
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Affiliation(s)
- Lara E Coelho
- National Institute of Infectious Diseases Evandro Chagas, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Corine Chazallon
- National Institute for Health and Medical Research (INSERM) UMR 1219, Research Institute for Sustainable Development (IRD) EMR 271, Bordeaux Population Health Centre, University of Bordeaux, Bordeaux, France
| | - Didier Laureillard
- Department of Infectious and Tropical Diseases, Nimes University Hospital, Nimes, France
- Research Unit 1058, Pathogenesis and Control Chronical Infections, INSERM, French Blood Center, University of Montpellier, Montpellier, France
| | - Rodrigo Escada
- National Institute of Infectious Diseases Evandro Chagas, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Jean-Baptiste N’takpe
- National Institute for Health and Medical Research (INSERM) UMR 1219, Research Institute for Sustainable Development (IRD) EMR 271, Bordeaux Population Health Centre, University of Bordeaux, Bordeaux, France
- Programme PACCI/ANRS Research Center, Abidjan, Côte-d'Ivoire
| | | | - Eugène Messou
- Programme PACCI/ANRS Research Center, Abidjan, Côte-d'Ivoire
- Centre de Prise en Charge de Recherche et de Formation, CePReF-Aconda-VS, Abidjan, Cote D'Ivoire
- Département de Dermatologie et d'Infectiologie, UFR des Sciences Médicales, Université Félix Houphouët Boigny, Abidjan, Cote d'Ivoire
| | - Serge Eholie
- Programme PACCI/ANRS Research Center, Abidjan, Côte-d'Ivoire
- Département de Dermatologie et d'Infectiologie, UFR des Sciences Médicales, Université Félix Houphouët Boigny, Abidjan, Cote d'Ivoire
| | - Celso Khosa
- Instituto Nacional de Saúde, Marracuene, Mozambique
| | - Giang D Chau
- Pham Ngoc Thach Hospital, Ho Chi Minh City, Vietnam
| | - Sandra Wagner Cardoso
- National Institute of Infectious Diseases Evandro Chagas, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Valdiléa G Veloso
- National Institute of Infectious Diseases Evandro Chagas, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Constance Delaugerre
- Virology department, APHP-Hôpital Saint-Louis, Paris, France
- INSERM U944, Paris, France
- Université Paris Cité, Paris, France
| | - Jean-Michel Molina
- INSERM U944, Paris, France
- Université Paris Cité, Paris, France
- Infectious Diseases Department, AP-HP-Hôpital Saint-Louis Lariboisière, Paris, France
| | - Beatriz Grinsztejn
- National Institute of Infectious Diseases Evandro Chagas, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Olivier Marcy
- National Institute for Health and Medical Research (INSERM) UMR 1219, Research Institute for Sustainable Development (IRD) EMR 271, Bordeaux Population Health Centre, University of Bordeaux, Bordeaux, France
| | - Nathalie De Castro
- National Institute for Health and Medical Research (INSERM) UMR 1219, Research Institute for Sustainable Development (IRD) EMR 271, Bordeaux Population Health Centre, University of Bordeaux, Bordeaux, France
- Infectious Diseases Department, AP-HP-Hôpital Saint-Louis Lariboisière, Paris, France
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Wongkittipong P, Kiertiburanakul S. Incidence and Predicting Factors of Opportunistic Infections after Antiretroviral Therapy Initiation among Treatment-naïve Patients with HIV Infection: A Retrospective Cohort Study in A Tertiary Care Hospital. J Int Assoc Provid AIDS Care 2024; 23:23259582241241167. [PMID: 38592111 PMCID: PMC11005498 DOI: 10.1177/23259582241241167] [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: 10/10/2023] [Revised: 12/31/2023] [Accepted: 03/02/2024] [Indexed: 04/10/2024] Open
Abstract
OBJECTIVES To determine the incidence of opportunistic infections (OIs) and the predictive factors for the development of OIs after antiretroviral therapy (ART) initiation among treatment-naïve patients with HIV infection. RESULTS Of 401 HIV-infected patients, 38 (9.5%) HIV-infected patients developed OIs after initiating ART, with an incidence rate of 25.6/1000 person-years. The median time (IQR) from ART initiation to OI occurrence was 26.5 (14-73) days. In multivariate Cox proportional hazard regression, body mass index ≤18.5 kg/m2 (adjusted hazard ratio [aHR] 2.28, 95% confidence interval [CI] 1.18-4.42, P = .015), symptoms at presentation (aHR 13.59, 95% CI 3.24-56.9, P < .001), serum glutamate-pyruvate transaminase >55 U/L (aHR 2.09, 95% CI 1.06-4.15, P = .035), and initiation of a dolutegravir-based regimen (aHR 4.39, 95% CI 1.54-12.48, P = .006) were significantly associated with OIs after ART initiation. CONCLUSION OIs after ART initiation are common. Malnutrition, symptomatic presentation, abnormal liver enzymes, and DTG-based regimens are predictors of OI occurrence after ART initiation. Physicians must monitor and appropriately treat OIs after ART initiation.
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Affiliation(s)
- Prapon Wongkittipong
- Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Sasisopin Kiertiburanakul
- Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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Loaiza JD, Chvatal-Medina M, Hernandez JC, Rugeles MT. Integrase inhibitors: current protagonists in antiretroviral therapy. Immunotherapy 2023; 15:1477-1495. [PMID: 37822251 DOI: 10.2217/imt-2023-0011] [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: 10/13/2023] Open
Abstract
Since HIV was identified as the etiological agent of AIDS, there have been significant advances in antiretroviral therapy (ART) that has reduced morbidity/mortality. Still, the viral genome's high mutation rate, suboptimal ART regimens, incomplete adherence to therapy and poor control of the viral load generate variants resistant to multiple drugs. Licensing over 30 anti-HIV drugs worldwide, including integrase inhibitors, has marked a milestone since they are potent and well-tolerated drugs. In addition, they favor a faster recovery of CD4+ T cells. They also increase the diversity profile of the gut microbiota and reduce inflammatory markers. All of these highlight the importance of including them in different ART regimens.
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Affiliation(s)
- John D Loaiza
- Grupo Inmunovirología, Facultad de medicina, Universidad de Antioquia, Medellín, 050010, Colombia
| | - Mateo Chvatal-Medina
- Grupo Inmunovirología, Facultad de medicina, Universidad de Antioquia, Medellín, 050010, Colombia
| | - Juan C Hernandez
- Infettare, Facultad de medicina, Universidad Cooperativa de Colombia, Medellín, 050012, Colombia
| | - Maria T Rugeles
- Grupo Inmunovirología, Facultad de medicina, Universidad de Antioquia, Medellín, 050010, Colombia
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Usman A, Balogun O, Shuaib BI, Musa BOP, Yusuf AA, Ajayi EIO. Prevalence of Cytopenia and its Correlation with Immunosuppression in Naïve HIV-1 Infected Patients Initiating First-Line Antiretroviral Therapy: A Pilot Study. Infect Chemother 2023; 55:479-489. [PMID: 38183393 PMCID: PMC10771947 DOI: 10.3947/ic.2023.0080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 10/17/2023] [Indexed: 01/08/2024] Open
Abstract
BACKGROUND Cytopenias serve as common indicators and crucial predictive tools for evaluating disease progression and therapeutic outcomes in individuals with human immunodeficiency virus (HIV) infection. This study aimed to assess the prevalence of cytopenias and their correlation with the level of immunosuppression in treatment-naive HIV-infected participants after initiating highly active combined antiretroviral drug therapy (cART24). MATERIALS AND METHODS This prospective study focused on evaluating cytopenia in 44 treatment-naive HIV-infected patients who consented to initiate cART and were consecutively enrolled. The research was conducted at the Nasara HIV Treatment & Care Centre of Ahmadu Bello University Teaching Hospital (ABUTH), Zaria, Nigeria, spanning from December 2016 to January 2018. Cytopenias, including anemia, leucopenia, lymphocytopenia, and thrombocytopenia, were defined and assessed according to World Health Organization guidelines. A combination of cross-sectional and longitudinal mixed-design two-step analysis was employed to validate our findings. RESULTS The median time from enrollment to cART initiation was 7 days, following the universal test and treat protocol. The prevalence of cytopenia was 75% at the baseline before treatment and increased to 84% after cART24 administration. There were no statistically significant differences in the median values of immuno-hematological parameters between baseline and after cART24 initiation (P >0.05). In terms of longitudinal assessment, the prevalence of anemia, leucopenia, lymphopenia, and thrombocytopenia at baseline were 66%, 23%, 0%, and 11%, respectively, and after cART24, the rates were 66%, 29%, 5%, and 20%. Notably, the prevalence of cytopenia correlated with declining CD4+ T cell counts. Among instances of unicytopenia, 58% exhibited isolated anemia, 6% had lone leucopenia, and 6% had solitary thrombocytopenia. Additionally, 27% demonstrated bi-cytopenia, and 3% exhibited pancytopenia. Interestingly, none of the study participants presented with lymphopenia. The most common combination was anemia and thrombocytopenia. Both longitudinal and cross-sectional analytical findings were consistent. CONCLUSION In treatment-naive HIV-infected individuals, the prevalence of cytopenias, particularly anemia and thrombocytopenia, was substantial and correlated with the degree of immunosuppression as indicated by CD4+ T cell counts. These cytopenias persisted despite initiation of cART24, highlighting the complexity of hematological manifestations in HIV infection. Our study underscores the significant hematopathological impact of HIV and antiretroviral therapy, highlighting the necessity for preventive strategies to mitigate these adverse effects.
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Affiliation(s)
- Abdulrasheed Usman
- Department of Pharmacology and Therapeutics, Faculty of Pharmaceutical Science Ahmadu Bello University, Zaria, Nigeria.
| | - Olayemi Balogun
- Department of Medical Microbiology, Ahmadu Bello University Teaching Hospital, Zaria, Nigeria
| | - Bukhari Isah Shuaib
- Department of Medical Laboratory Science, Faculty of Applied Health Science Edo State University, Uzairue, Edo State, Nigeria
| | - Bolanle O P Musa
- Immunology Unit, Department of Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Aminu Abba Yusuf
- Department of Haematology, Faculty of Clinical Sciences, Bayero University/Department of Haematology and Blood Transfusion, Aminu Kano Teaching Hospital, Kano, Nigeria
| | - Ebenezer I O Ajayi
- DC&ONID, Department of Biochemistry, Faculty of Basic and Applied Sciences, Osun State University, Osogbo, Nigeria
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Martinez AE, Frattaroli P, Vu CA, Paniagua L, Mintz J, Bravo-Gonzalez A, Zamudio P, Barco A, Rampersad A, Lichtenberger P, Gonzales-Zamora JA. Successful Outcome after Treatment with Cidofovir, Vaccinia, and Extended Course of Tecovirimat in a Newly-Diagnosed HIV Patient with Severe Mpox: A Case Report. Vaccines (Basel) 2023; 11:vaccines11030650. [PMID: 36992234 DOI: 10.3390/vaccines11030650] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/10/2023] [Accepted: 03/13/2023] [Indexed: 03/16/2023] Open
Abstract
Purpose: To report a case of severe mpox in a newly diagnosed HIV patient concerning for Immune Reconstitution Inflammatory Syndrome (IRIS) and/or tecovirimat resistance and to describe the management approach in the setting of refractory disease. Case: 49-year-old man presented with 2 weeks of perianal lesions. He tested positive for mpox PCR in the emergency room and was discharged home with quarantine instructions. Three weeks later, the patient returned with disseminated firm, nodular lesions in the face, neck, scalp, mouth, chest, back, legs, arms, and rectum, with worsening pain and purulent drainage from the rectum. The patient reported being on 3 days of tecovirimat treatment, which was prescribed by the Florida department of health (DOH). During this admission, he was found to be HIV positive. A pelvic CT scan revealed a 2.5 cm perirectal abscess. Treatment with tecovirimat was continued for 14 days, along with an empiric course of antibiotics for treatment of possible superimposed bacterial infection upon discharge. He was seen in the outpatient clinic and initiated antiretroviral therapy (ART) with TAF/emtricitabine/bictegravir. Two weeks after starting ART, the patient was readmitted for worsening mpox rash and rectal pain. Urine PCR also returned positive for chlamydia, for which the patient was prescribed doxycycline. He was discharged on a second course of tecovirimat and antibiotic therapy. Ten days later, the patient was readmitted for the second time due to worsening symptoms and blockage of the nasal airway from progressing lesions. At this point, there were concerns for tecovirimat resistance, and after discussion with CDC, tecovirimat was reinitiated for the third time, with the addition of Cidofovir and Vaccinia, and showed an improvement in his symptoms. He received three doses of cidofovir and two doses of Vaccinia, and the patient was then discharged to complete 30 days of tecovirimat. Outpatient follow-up showed favorable outcomes and near resolution. Conclusion: We reported a challenging case of worsening mpox after Tecovirimat treatment in the setting of new HIV and ART initiation concerning IRIS vs. Tecovirimat resistance. Clinicians should consider the risk of IRIS and weigh the pros and cons of initiating or delaying ART. In patients not responding to first-line treatment with tecovirimat, resistance testing should be performed, and alternative options should be considered. Future research is needed to establish guidance on the role of Cidofovir and Vaccinia immune globulin and the continuation of tecovirimat for refractory mpox.
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Affiliation(s)
- Andres E Martinez
- Division of Infectious Diseases, Department of Medicine, Jackson Memorial Hospital, Miami, FL 33136, USA
- Division of Infectious Diseases, Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL 33146, USA
| | - Paola Frattaroli
- Division of Infectious Diseases, Department of Medicine, Jackson Memorial Hospital, Miami, FL 33136, USA
- Division of Infectious Diseases, Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL 33146, USA
| | - Christine A Vu
- Department of Pharmacy, Jackson Memorial Hospital, Miami, FL 33136, USA
| | - Lizy Paniagua
- Division of Infectious Diseases, Department of Medicine, Jackson Memorial Hospital, Miami, FL 33136, USA
- Division of Infectious Diseases, Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL 33146, USA
| | - Joel Mintz
- Department of Internal Medicine, University of Miami, Jackson Memorial Hospital, Miami, FL 33136, USA
| | | | - Paola Zamudio
- Universidad Anáhuac Querétaro, Querétaro 76246, Mexico
| | - Astrid Barco
- Universidad de Especialidades Espíritu Santo, Guayas 092301, Ecuador
| | - Aruna Rampersad
- Couva Hospital and Multi Training Facility, Couva 550214, Trinidad and Tobago
| | - Paola Lichtenberger
- Division of Infectious Diseases, Department of Medicine, Jackson Memorial Hospital, Miami, FL 33136, USA
- Division of Infectious Diseases, Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL 33146, USA
| | - Jose A Gonzales-Zamora
- Division of Infectious Diseases, Department of Medicine, Jackson Memorial Hospital, Miami, FL 33136, USA
- Division of Infectious Diseases, Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL 33146, USA
- Peruvian American Medical Society (PAMS), Albuquerque, NM 87111, USA
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Tuberculosis-Associated Immune Reconstitution Inflammatory Syndrome-An Extempore Game of Misfiring with Defense Arsenals. Pathogens 2023; 12:pathogens12020210. [PMID: 36839482 PMCID: PMC9964757 DOI: 10.3390/pathogens12020210] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/21/2023] [Accepted: 01/28/2023] [Indexed: 01/31/2023] Open
Abstract
The lethal combination involving TB and HIV, known as "syndemic" diseases, synergistically act upon one another to magnify the disease burden. Individuals on anti-retroviral therapy (ART) are at risk of developing TB-associated immune reconstitution inflammatory syndrome (TB-IRIS). The underlying inflammatory complication includes the rapid restoration of immune responses following ART, eventually leading to exaggerated inflammatory responses to MTB antigens. TB-IRIS continues to be a cause of morbidity and mortality among HIV/TB coinfected patients initiating ART, and although a significant quantum of knowledge has been acquired on the pathogenesis of IRIS, the underlying pathomechanisms and identification of a sensitive and specific diagnostic marker still remain a grey area of investigation. Here, we reviewed the latest research developments into IRIS immunopathogenesis, and outlined the modalities to prevent and manage strategies for better clinical and diagnostic outcomes for IRIS.
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A clinical review of HIV integrase strand transfer inhibitors (INSTIs) for the prevention and treatment of HIV-1 infection. Retrovirology 2022; 19:22. [PMID: 36273165 PMCID: PMC9588231 DOI: 10.1186/s12977-022-00608-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/26/2022] [Indexed: 12/13/2022] Open
Abstract
Integrase strand transfer inhibitors (INSTIs) have improved the treatment of human immunodeficiency virus (HIV). There are currently four approved for use in treatment-naïve individuals living with HIV; these include first generation raltegravir, elvitegravir, and second generation dolutegravir and bictegravir. The most recent INSTI, cabotegravir, is approved for (1) treatment of HIV infection in adults to replace current antiretroviral therapy in individuals who maintain virologic suppression on a stable antiretroviral regimen without history of treatment failure and no known resistance to its components and (2) pre-exposure prophylaxis in individuals at risk of acquiring HIV-1 infection. Cabotegravir can be administered intramuscularly as a monthly or bi-monthly injection depending on the indication. This long-acting combination has been associated with treatment satisfaction in clinical studies and may be helpful for individuals who have difficulty taking daily oral medications. Worldwide, second generation INSTIs are preferred for treatment-naïve individuals. Advantages of these INSTIs include their high genetic barrier to resistance, limited drug-drug interactions, excellent rates of virologic suppression, and favorable tolerability. Few INSTI resistance-associated mutations have been reported in clinical trials involving dolutegravir, bictegravir and cabotegravir. Other advantages of specific INSTIs include their use in various populations such as infants and children, acute HIV infection, and individuals of childbearing potential. The most common adverse events observed in clinical studies involving INSTIs included diarrhea, nausea, insomnia, fatigue, and headache, with very low rates of treatment discontinuation versus comparator groups. The long-term clinical implications of weight gain associated with second generation INSTIs dolutegravir and bictegravir warrants further study. This review summarizes key clinical considerations of INSTIs in terms of clinical pharmacology, drug-drug interactions, resistance, and provides perspective on clinical decision-making. Additionally, we summarize major clinical trials evaluating the efficacy and safety of INSTIs in treatment-naïve patients living with HIV as well as individuals at risk of acquiring HIV infection.
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