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Chan PA, Le Brazidec DL, Becasen JS, Martin H, Kapadia J, Reno H, Bachmann L, Barbee LA. Safety of Longer-Term Doxycycline Use: A Systematic Review and Meta-Analysis With Implications for Bacterial Sexually Transmitted Infection Chemoprophylaxis. Sex Transm Dis 2023; 50:701-712. [PMID: 37732844 PMCID: PMC10592014 DOI: 10.1097/olq.0000000000001865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
BACKGROUND Sexually transmitted infections (STIs) such as syphilis, gonorrhea, and chlamydia have significantly increased over the past decade in the United States. Doxycycline as chemoprophylaxis (i.e., postexposure prophylaxis) offers promise for addressing bacterial STIs. The goal of the current study was to evaluate the safety of longer-term doxycycline use (defined as 8 or more weeks) in the context of potential use as STI chemoprophylaxis through a systematic literature review and meta-analysis. METHODS This review used the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines to search MEDLINE/PubMed for clinical studies published from August 2003 to January 2023 that reported on adverse events with doxycycline use with a focus on side effects and metabolic effects of long-term use. RESULTS A total of 67 studies were included in the systematic review. Overall, studies on longer-term doxycycline use reported 0% to greater than 50% adverse events ranging from mild to severe. Most common adverse events included gastrointestinal symptoms (i.e., nausea, vomiting, and abdominal pain), dermatologic (i.e., rash), and neurological (i.e., headache and dizziness) symptoms. Discontinuation of doxycycline due to adverse events was relatively uncommon in most studies. A meta-analysis of placebo controlled clinical trials (N = 18) revealed that gastrointestinal and dermatological adverse events were more likely to occur in the doxycycline group. CONCLUSIONS Longer-term (8+ weeks) doxycycline use is generally safe and may be associated with minor side effects. Further research is needed on the potential metabolic impact of longer-term doxycycline use.
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Affiliation(s)
- Philip A. Chan
- Department of Medicine, Brown University, Providence, Rhode Island, USA
- Division of STD Prevention, National Center for HIV, Viral Hepatitis, STD and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | | | - Jeffrey S. Becasen
- Division of HIV Prevention, National Center for HIV, Viral Hepatitis, STD and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Harrison Martin
- Department of Medicine, Brown University, Providence, Rhode Island, USA
| | - Jhanavi Kapadia
- Department of Medicine, Brown University, Providence, Rhode Island, USA
| | - Hilary Reno
- Division of STD Prevention, National Center for HIV, Viral Hepatitis, STD and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Laura Bachmann
- Division of STD Prevention, National Center for HIV, Viral Hepatitis, STD and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Lindley A. Barbee
- Division of STD Prevention, National Center for HIV, Viral Hepatitis, STD and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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Baneth G, Dvorkin A, Ben-Shitrit B, Kleinerman G, Salant H, Straubinger RK, Nachum-Biala Y. Infection and seroprevalence of Borrelia persica in domestic cats and dogs in Israel. Parasit Vectors 2022; 15:102. [PMID: 35534871 PMCID: PMC9087918 DOI: 10.1186/s13071-022-05223-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 02/24/2022] [Indexed: 11/12/2022] Open
Abstract
Background Relapsing fever borreliosis is an infectious disease caused by bacteria of the genus Borrelia, inflicting recurrent episodes of fever and spirochetemia in humans. Borrelia persica, the causative agent of relapsing fever in Israel, is prevalent over a broad geographic area that extends from India to Egypt. It is transmitted by the soft tick Ornithodoros tholozani and causes disease in humans as well as domestic cats and dogs. The goal of this study was to survey domestic dogs and cats in Israel for infection with B. persica. Methods Blood, sera and demographic and clinical data were collected from dogs and cats brought for veterinary care in central Israel. PCR followed by DNA sequencing was used to detect B. persica DNA in blood samples, and an enzyme-linked immunosorbent assay (ELISA) was used to detect antibodies reactive with B. persica antigens in sera from the same animals. This is the first serological survey of B. persica in dogs and the first survey for antibodies reactive with a relapsing fever Borrelia sp. in cats globally. Results Four of the 208 dogs (1.9%) and three of 103 cats (2.9%) sampled were positive by PCR for B. persica DNA, and 24 dogs (11.5%) and 18 cats (17.5%) were seropositive for B. persica antigen by ELISA. The ratio between PCR-positivity and seropositivity in both the dog and cat populations was 1:6. All four PCR-positive dogs and two of three PCR-positive cats were seronegative, suggesting a probable recent infection. Thrombocytopenia showed significant association with seropositivity in dogs (P = 0.003). In cats, anemia had a significant association with seropositivity (P = 0.0001), and thrombocytopenia was associated with the combined prevalence of seropositivity or PCR-positivity (P = 0.022). Conclusions Borrelia persica infection is more prevalent and widespread in domestic canine and feline populations in Israel than previously thought. Dogs and cats may play a role as reservoirs and sentinels for human infection. Precautions should be taken to prevent transfusion-transmitted infection between blood donor and recipient animals. Graphic Abstract ![]()
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Affiliation(s)
- Gad Baneth
- The Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, P.O. Box 12, 761001, Rehovot, Israel.
| | - Ann Dvorkin
- The Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, P.O. Box 12, 761001, Rehovot, Israel
| | - Bar Ben-Shitrit
- The Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, P.O. Box 12, 761001, Rehovot, Israel
| | - Gabriela Kleinerman
- The Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, P.O. Box 12, 761001, Rehovot, Israel
| | - Harold Salant
- The Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, P.O. Box 12, 761001, Rehovot, Israel
| | - Reinhard K Straubinger
- Bacteriology and Mycology, Institute for Infectious Diseases and Zoonoses, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Yaarit Nachum-Biala
- The Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, P.O. Box 12, 761001, Rehovot, Israel
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The Reply. Am J Med 2022; 135:e78-e79. [PMID: 35249634 DOI: 10.1016/j.amjmed.2021.10.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 10/23/2021] [Indexed: 11/20/2022]
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Jakab Á, Kahlig P, Kuenzli E, Neumayr A. Tick borne relapsing fever - a systematic review and analysis of the literature. PLoS Negl Trop Dis 2022; 16:e0010212. [PMID: 35171908 PMCID: PMC8887751 DOI: 10.1371/journal.pntd.0010212] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 03/01/2022] [Accepted: 01/27/2022] [Indexed: 02/07/2023] Open
Abstract
Tick borne relapsing fever (TBRF) is a zoonosis caused by various Borrelia species transmitted to humans by both soft-bodied and (more recently recognized) hard-bodied ticks. In recent years, molecular diagnostic techniques have allowed to extend our knowledge on the global epidemiological picture of this neglected disease. Nevertheless, due to the patchy occurrence of the disease and the lack of large clinical studies, the knowledge on several clinical aspects of the disease remains limited. In order to shed light on some of these aspects, we have systematically reviewed the literature on TBRF and summarized the existing data on epidemiology and clinical aspects of the disease. Publications were identified by using a predefined search strategy on electronic databases and a subsequent review of the reference lists of the obtained publications. All publications reporting patients with a confirmed diagnosis of TBRF published in English, French, Italian, German, and Hungarian were included. Maps showing the epidemiogeographic mosaic of the different TBRF Borrelia species were compiled and data on clinical aspects of TBRF were analysed. The epidemiogeographic mosaic of TBRF is complex and still continues to evolve. Ticks harbouring TBRF Borrelia have been reported worldwide, with the exception of Antarctica and Australia. Although only molecular diagnostic methods allow for species identification, microscopy remains the diagnostic gold standard in most clinical settings. The most suggestive symptom in TBRF is the eponymous relapsing fever (present in 100% of the cases). Thrombocytopenia is the most suggestive laboratory finding in TBRF. Neurological complications are frequent in TBRF. Treatment is with beta-lactams, tetracyclines or macrolids. The risk of Jarisch-Herxheimer reaction (JHR) appears to be lower in TBRF (19.3%) compared to louse-borne relapsing fever (LBRF) (55.8%). The overall case fatality rate of TBRF (6.5%) and LBRF (4-10.2%) appears to not differ. Unlike LBRF, where perinatal fatalities are primarily attributable to abortion, TBRF-related perinatal fatalities appear to primarily affect newborns.
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Affiliation(s)
- Ákos Jakab
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Pascal Kahlig
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Esther Kuenzli
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Andreas Neumayr
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
- Department of Public Health and Tropical Medicine, College of Public Health, Medical and Veterinary Sciences, James Cook University, Queensland, Australia
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Truong R, Tang V, Grennan T, Tan DHS. OUP accepted manuscript. JAC Antimicrob Resist 2022; 4:dlac009. [PMID: 35198979 PMCID: PMC8855662 DOI: 10.1093/jacamr/dlac009] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 01/17/2022] [Indexed: 11/12/2022] Open
Abstract
Objectives Methods Results Conclusions
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Affiliation(s)
- Robinson Truong
- Faculty of Medicine, University of Toronto, 1 King’s College Cir, Toronto, ON M5S 1A8, Canada
- Centre for Urban Health Solutions, St. Michael’s Hospital, 209 Victoria St, Toronto, ON M5B 1T8, Canada
| | - Vincent Tang
- Faculty of Medicine, University of Toronto, 1 King’s College Cir, Toronto, ON M5S 1A8, Canada
| | - Troy Grennan
- BC Centre for Disease Control, 655 West 12th Avenue, Vancouver, BC V5Z 4R4, Canada
- Division of Infectious Diseases and Department of Medicine, University of British Columbia, 317–2194 Health Sciences Mall, Vancouver, BC V6 T 1Z3, Canada
| | - Darrell H. S. Tan
- Faculty of Medicine, University of Toronto, 1 King’s College Cir, Toronto, ON M5S 1A8, Canada
- Centre for Urban Health Solutions, St. Michael’s Hospital, 209 Victoria St, Toronto, ON M5B 1T8, Canada
- Division of Infectious Diseases, St. Michael’s Hospital, 36 Queen St E, Toronto, ON M5B 1W8, Canada
- Department of Medicine, St. Michael’s Hospital, 36 Queen St E, Toronto, ON M5B 1W8, Canada
- Corresponding author. E-mail:
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Wormser GP. Doxycycline for Prevention of Spirochetal Infections: Status Report. Clin Infect Dis 2021; 71:2014-2017. [PMID: 32157268 DOI: 10.1093/cid/ciaa240] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/05/2020] [Indexed: 11/14/2022] Open
Abstract
Important human infections caused by spirochetal microorganisms include Lyme disease, syphilis, leptospirosis, and tick-borne relapsing fever. Doxycycline prophylactic regimens have been shown to significantly reduce the risk for developing all of these infections in potentially exposed individuals, which is highly clinically relevant as no vaccines to prevent these infections in humans are currently available. Additional data, however, are needed to define more precisely the level of efficacy of the doxycycline prophylactic regimens, especially for Lyme disease and syphilis, infections that can be potentially prevented by a single 200-mg dose of doxycycline given within 72 hours postexposure.
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Affiliation(s)
- Gary P Wormser
- Division of Infectious Diseases, New York Medical College, Valhalla, New York, USA
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Wormser GP, Warshafsky S, Visintainer P. Postexposure prophylaxis with single-dose doxycycline is effective for prevention of Lyme disease in both the United States and Europe and is also effective for prevention of syphilis and tick-borne relapsing fever. Diagn Microbiol Infect Dis 2021; 100:115367. [PMID: 33780744 DOI: 10.1016/j.diagmicrobio.2021.115367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 02/27/2021] [Indexed: 11/16/2022]
Affiliation(s)
- Gary P Wormser
- Division of Infectious Diseases, New York Medical College, Valhalla, NY, USA.
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Wormser GP, Warshafsky S, Visintainer P. Aggregation of data from 4 clinical studies demonstrating efficacy of single-dose doxycycline postexposure for prevention of the spirochetal infections: Lyme disease, syphilis, and tick-borne relapsing fever. Diagn Microbiol Infect Dis 2020; 99:115293. [PMID: 33360515 DOI: 10.1016/j.diagmicrobio.2020.115293] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 12/02/2020] [Accepted: 12/07/2020] [Indexed: 11/30/2022]
Abstract
Single-dose doxycycline, given within 72 hours of exposure, has been evaluated in 4 clinical studies for postexposure prophylaxis of 3 spirochetal infections: Lyme disease, syphilis, and tick-borne relapsing fever. In this study, data from the 4 studies were aggregated using a meta-analytic random-effects approach, with the DerSimonian-Laird method for variance estimation, analyzing a total of 2468 subjects. The findings of this analysis demonstrated an overall efficacy rate for prevention of the 3 spirochetal infections of 78% (95% confidence interval: 50%-91%).
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Affiliation(s)
- Gary P Wormser
- Division of Infectious Diseases, New York Medical College, Valhalla, NY, USA.
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