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1.
Cutan Ocul Toxicol ; 43(3): 190-197, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39023122

RESUMEN

OBJECTIVE: Miltefosine stands as the sole oral medication approved for the treatment of leishmaniasis. The appearance of severe ophthalmic toxicities induced by miltefosine in the context of leishmaniasis treatment is a matter of significant concern. The main objective of this study is to present a comprehensive summary of the ophthalmic adverse effects associated with miltefosine when used in the treatment of leishmaniasis. METHODS: A systematic search was performed on PubMed, ScienceDirect, Embase, Scopus, and Google Scholar, covering articles from inception up to June 2023, without language restrictions, to identify relevant studies documenting ocular toxicity following miltefosine treatment for leishmaniasis. RESULTS: A total of eight studies involving 31 leishmaniasis patients who developed ocular toxicities while undergoing miltefosine treatment were included in the analysis. These studies were conducted in various regions, with five originating from India, two from Bangladesh, and one from Nepal. Patients presented a spectrum of ophthalmic complications, including uveitis, keratitis, scleritis, and Mooren's ulcer. Commonly reported symptoms included pain, redness, excessive tearing, partial vision impairment, permanent blindness, light sensitivity, and the appearance of white spots on the eye. On average, patients received miltefosine treatment for a duration of 47 days before experiencing the onset of ocular problems. It is important to note that the risk of ocular toxicities increases with prolonged use of miltefosine. CONCLUSIONS: Therefore, to mitigate the potential for irreversible damage to the eyes, it is imperative that all individuals undergoing miltefosine therapy undergo regular eye examinations.


Asunto(s)
Antiprotozoarios , Fosforilcolina , Humanos , Antiprotozoarios/efectos adversos , Antiprotozoarios/uso terapéutico , Fosforilcolina/análogos & derivados , Fosforilcolina/efectos adversos , Fosforilcolina/uso terapéutico , Leishmaniasis/tratamiento farmacológico , Oftalmopatías/inducido químicamente
2.
PLoS Negl Trop Dis ; 18(6): e0012242, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38900786

RESUMEN

BACKGROUND: In Southeast Asia, treatment is recommended for all patients with post-kala-azar dermal leishmaniasis (PKDL). Adherence to the first-line regimen, twelve weeks of miltefosine (MF), is low and ocular toxicity has been observed with this exposure period. We assessed the safety and efficacy of two shorter-course treatments: liposomal amphotericin B (LAmB) alone and combined with MF. METHODOLOGY/PRINCIPAL FINDINGS: An open-label, phase II, randomized, parallel-arm, non-comparative trial was conducted in patients with parasitologically confirmed PKDL, 6 to ≤60 years. Patients were assigned to 20 mg/kg LAmB (total dose, in five injections over 15 days) alone or combined with allometric MF (3 weeks). The primary endpoint was definitive cure at 12 months, defined as complete resolution of papular and nodular lesions and >80% re-pigmentation of macular lesions. Definitive cure at 24 months was a secondary efficacy endpoint. 118/126 patients completed the trial. Definitive cure at 12 months was observed in 29% (18/63) patients receiving LAmB and 30% (19/63) receiving LAmB/MF (mITT), increasing to 58% and 66%, respectively, at 24 months. Most lesions had resolved/improved at 12 and 24 months for patients receiving LAmB (90%, 83%) and LAmB/MF (85%, 88%) by qualitative assessment. One death, unrelated to study drugs, was reported; no study drug-related serious adverse events were observed. The most frequent adverse drug reactions were MF-related vomiting and nausea, and LAmB-related hypokalaemia and infusion reactions. Most adverse events were mild; no ocular adverse events occurred. CONCLUSIONS/SIGNIFICANCE: Both regimens are suitably safe and efficacious alternatives to long-course MF for PKDL in South Asia. TRIAL REGISTRATION: CTRI/2017/04/008421.


Asunto(s)
Anfotericina B , Antiprotozoarios , Leishmaniasis Cutánea , Leishmaniasis Visceral , Fosforilcolina , Humanos , Anfotericina B/uso terapéutico , Anfotericina B/efectos adversos , Anfotericina B/administración & dosificación , Fosforilcolina/análogos & derivados , Fosforilcolina/uso terapéutico , Fosforilcolina/administración & dosificación , Fosforilcolina/efectos adversos , Bangladesh , Masculino , Antiprotozoarios/uso terapéutico , Antiprotozoarios/efectos adversos , Antiprotozoarios/administración & dosificación , Adulto , Adolescente , Femenino , Persona de Mediana Edad , Adulto Joven , Niño , India , Leishmaniasis Visceral/tratamiento farmacológico , Resultado del Tratamiento , Leishmaniasis Cutánea/tratamiento farmacológico , Leishmaniasis Cutánea/parasitología , Quimioterapia Combinada
3.
PLoS Negl Trop Dis ; 17(11): e0011780, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37988402

RESUMEN

BACKGROUND: Treatment for post-kala-azar dermal leishmaniasis (PKDL) in Sudan is currently recommended only for patients with persistent or severe disease, mainly because of the limitations of current therapies, namely toxicity and long hospitalization. We assessed the safety and efficacy of miltefosine combined with paromomycin and liposomal amphotericin B (LAmB) for the treatment of PKDL in Sudan. METHODOLOGY/PRINCIPAL FINDINGS: An open-label, phase II, randomized, parallel-arm, non-comparative trial was conducted in patients with persistent (stable or progressive disease for ≥ 6 months) or grade 3 PKDL, aged 6 to ≤ 60 years in Sudan. The median age was 9.0 years (IQR 7.0-10.0y) and 87% of patients were ≤12 years old. Patients were randomly assigned to either daily intra-muscular paromomycin (20mg/kg, 14 days) plus oral miltefosine (allometric dose, 42 days)-PM/MF-or LAmB (total dose of 20mg/kg, administered in four injections in week one) and oral miltefosine (allometric dose, 28 days)-LAmB/MF. The primary endpoint was a definitive cure at 12 months after treatment onset, defined as clinical cure (100% lesion resolution) and no additional PKDL treatment between end of therapy and 12-month follow-up assessment. 104/110 patients completed the trial. Definitive cure at 12 months was achieved in 54/55 (98.2%, 95% CI 90.3-100) and 44/55 (80.0%, 95% CI 70.2-91.9) of patients in the PM/MF and AmB/MF arms, respectively, in the mITT set (all randomized patients receiving at least one dose of treatment; in case of error of treatment allocation, the actual treatment received was used in the analysis). No SAEs or deaths were reported, and most AEs were mild or moderate. At least one adverse drug reaction (ADR) was reported in 13/55 (23.6%) patients in PM/MF arm and 28/55 (50.9%) in LAmB/MF arm, the most frequent being miltefosine-related vomiting and nausea, and LAmB-related hypokalaemia; no ocular or auditory ADRs were reported. CONCLUSIONS/SIGNIFICANCE: The PM/MF regimen requires shorter hospitalization than the currently recommended 60-90-day treatment, and is safe and highly efficacious, even for patients with moderate and severe PKDL. It can be administered at primary health care facilities, with LAmB/MF as a good alternative. For future VL elimination, we need new, safe oral therapies for all patients with PKDL. TRIAL REGISTRATION: ClinicalTrials.gov NCT03399955, https://clinicaltrials.gov/study/NCT03399955 ClinicalTrials.gov ClinicalTrials.gov.


Asunto(s)
Antiprotozoarios , Leishmaniasis Cutánea , Leishmaniasis Visceral , Humanos , Niño , Paromomicina/efectos adversos , Leishmaniasis Visceral/tratamiento farmacológico , Antiprotozoarios/efectos adversos , Leishmaniasis Cutánea/tratamiento farmacológico , Fosforilcolina/efectos adversos , Resultado del Tratamiento
4.
Clin Infect Dis ; 76(3): e1177-e1185, 2023 02 08.
Artículo en Inglés | MEDLINE | ID: mdl-36164254

RESUMEN

BACKGROUND: This study aimed to determine whether paromomycin plus miltefosine (PM/MF) is noninferior to sodium stibogluconate plus paromomycin (SSG/PM) for treatment of primary visceral leishmaniasis in eastern Africa. METHODS: An open-label, phase 3, randomized, controlled trial was conducted in adult and pediatric patients at 7 sites in eastern Africa. Patients were randomly assigned to either 20 mg/kg paromomycin plus allometric dose of miltefosine (14 days), or 20 mg/kg sodium stibogluconate plus 15 mg/kg paromomycin (17 days). The primary endpoint was definitive cure after 6 months. RESULTS: Of 439 randomized patients, 424 completed the trial. Definitive cure at 6 months was 91.2% (155 of 170) and 91.8% (156 of 170) in the PM/MF and SSG/PM arms in primary efficacy modified intention-to-treat analysis (difference, 0.6%; 97.5% confidence interval [CI], -6.2 to 7.4), narrowly missing the noninferiority margin of 7%. In the per-protocol analysis, efficacy was 92% (149 of 162) and 91.7% (155 of 169) in the PM/MF and SSG/PM arms (difference, -0.3%; 97.5% CI, -7.0 to 6.5), demonstrating noninferiority. Treatments were well tolerated. Four of 18 serious adverse events were study drug-related, and 1 death was SSG-related. Allometric dosing ensured similar MF exposure in children (<12 years) and adults. CONCLUSIONS: PM/MF and SSG/PM efficacies were similar, and adverse drug reactions were as expected given the drugs safety profiles. With 1 less injection each day, reduced treatment duration, and no risk of SSG-associated life-threatening cardiotoxicity, PM/MF is a more patient-friendly alternative for children and adults with primary visceral leishmaniasis in eastern Africa. CLINICAL TRIALS REGISTRATION: NCT03129646.


Asunto(s)
Antiprotozoarios , Leishmaniasis Visceral , Adulto , Humanos , Niño , Paromomicina/efectos adversos , Antiprotozoarios/efectos adversos , Gluconato de Sodio Antimonio/efectos adversos , Leishmaniasis Visceral/tratamiento farmacológico , Resultado del Tratamiento , Quimioterapia Combinada , África Oriental , Fosforilcolina/efectos adversos
5.
Front Endocrinol (Lausanne) ; 13: 899271, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35909558

RESUMEN

Introduction: Green tea extract (GTE) alleviated ocular inflammations in endotoxin-induced uveitis (EIU) rat model induced by lipopolysaccharide (LPS) but the underlying mechanism is unclear. Objectives: To investigate the systematic and local mechanisms of the alleviation by untargeted metabolomics using liquid chromatography-tandem mass spectrometry. Methods: Sprague-Dawley rats were divided into control group, LPS treatment group, and LPS treatment group treated with GTE two hours after LPS injection. The eyes were monitored by slip lamp and electroretinography examination after 24 hours. The plasma and retina were collected for metabolomics analysis. Results: In LPS treated rats, the iris showed hyperemia. Plasma prostaglandins, arachidonic acids, corticosteroid metabolites, and bile acid metabolites increased. In the retina, histamine antagonists, corticosteroids, membrane phospholipids, free antioxidants, and sugars also increased but fatty acid metabolites, N-acetylglucosamine-6-sulphate, pyrocatechol, and adipic acid decreased. After GTE treatment, the a- and b- waves of electroretinography increased by 13%. Plasma phosphorylcholine lipids increased but plasma prostaglandin E1, cholanic metabolites, and glutarylglycine decreased. In the retina, tetranor-PGAM, pantothenic derivatives, 2-ethylacylcarinitine, and kynuramine levels decreased but anti-oxidative seleno-peptide level increased. Only phospholipids, fatty acids, and arachidonic acid metabolites in plasma and in the retina had significant correlation (p < 0.05, r > 0.4 or r < -0.4). Conclusions: The results showed GTE indirectly induced systemic phosphorylcholine lipids to suppress inflammatory responses, hepatic damage, and respiratory mitochondrial stress in EIU rats induced by LPS. Phospholipids may be a therapeutic target of GTE for anterior chamber inflammation.


Asunto(s)
Lipopolisacáridos , Uveítis , Animales , Antiinflamatorios/farmacología , Antiinflamatorios/uso terapéutico , Antioxidantes/metabolismo , Endotoxinas , Inflamación/metabolismo , Lipopolisacáridos/toxicidad , Fosforilcolina/efectos adversos , Fosforilcolina/metabolismo , Extractos Vegetales/farmacología , Extractos Vegetales/uso terapéutico , Ratas , Ratas Sprague-Dawley , Retina/metabolismo , Té/efectos adversos , Té/química , Té/metabolismo , Uveítis/inducido químicamente , Uveítis/tratamiento farmacológico , Uveítis/metabolismo
8.
Clin Infect Dis ; 75(8): 1423-1432, 2022 10 12.
Artículo en Inglés | MEDLINE | ID: mdl-35147680

RESUMEN

BACKGROUND: Visceral leishmaniasis (VL) in patients with human immunodeficiency virus (HIV) presents an increasingly important patient cohort in areas where both infections are endemic. Evidence for treatment is sparce, with no high-quality studies from the Indian subcontinent. METHODS: This is a randomized, open-label, parallel-arm, phase 3 trial conducted within a single hospital in Patna, India. One hundred and fifty patients aged ≥18 years with serologically confirmed HIV and parasitologically confirmed VL were randomly allocated to 1 of 2 treatment arms, either a total 40 mg/kg intravenous liposomal amphotericin B (AmBisome; Gilead Pharmaceuticals) administered in 8 equal doses over 24 days or a total 30 mg/kg intravenous AmBisome administered in 6 equal doses given concomitantly with a total 1.4 g oral miltefosine administered through 2 daily doses of 50 mg over 14 days. The primary outcome was intention-to-treat relapse-free survival at day 210, defined as absence of signs and symptoms of VL or, if symptomatic, negative parasitological investigations. RESULTS: Among 243 patients assessed for eligibility, 150 were recruited between 2 January 2017 and 5 April 2018, with no loss to follow-up. Relapse-free survival at day 210 was 85% (64/75; 95% CI, 77-100%) in the monotherapy arm, and 96%, (72/75; 90-100%) in the combination arm. Nineteen percent (28/150) were infected with concurrent tuberculosis, divided equally between arms. Excluding those with concurrent tuberculosis, relapse-free survival at day 210 was 90% (55/61; 82-100%) in the monotherapy and 97% (59/61; 91-100%) in the combination therapy arm. Serious adverse events were uncommon and similar in each arm. CONCLUSIONS: Combination therapy appears to be safe, well tolerated, and effective, and halves treatment duration of current recommendations. CLINICAL TRIALS REGISTRATION: Clinical Trial Registry India (CTRI/2015/05/005807; the protocol is available online at https://osf.io/avz7r).


Asunto(s)
Antiprotozoarios , Coinfección , Infecciones por VIH , Leishmaniasis Visceral , Adolescente , Adulto , Anfotericina B , Antiprotozoarios/efectos adversos , Coinfección/tratamiento farmacológico , Quimioterapia Combinada , VIH , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico , Humanos , India , Leishmaniasis Visceral/complicaciones , Leishmaniasis Visceral/tratamiento farmacológico , Preparaciones Farmacéuticas , Fosforilcolina/efectos adversos , Fosforilcolina/análogos & derivados , Recurrencia , Resultado del Tratamiento
11.
PLoS Negl Trop Dis ; 15(5): e0009460, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-34048461

RESUMEN

BACKGROUND: Cutaneous leishmaniasis (CL) in Ethiopia, caused by Leishmania aethiopica, is often severe and hard to treat compared to CL caused by other species elsewhere. Miltefosine is the only oral anti-leishmanial drug, with a favorable side-effect profile compared to routinely available sodium stibogluconate (SSG), but evidence about its use for L. aethiopica is lacking. METHODOLOGY AND PRINCIPAL FINDINGS: In an observational cohort study, treatment outcomes, safety and adherence among CL patients who required systemic treatment and received miltefosine for 28 days in Boru Meda Hospital and University of Gondar Hospital were studied. Patient cure was defined as 100% flattening for non-ulcerated lesions and 100% flattening and 100% re-epithelization for ulcerated lesions. Outcomes were documented for day 28, 90 and 180, both per site, and pooled, adjusting for site as a fixed effect with effect coding. Among 94 included patients (32 in Gondar, 62 in Boru Meda), median lesion duration was 12 months, median size six cm, and mucosal involvement (46.8%) and diffuse (30.9%) lesions were common. Adherence to miltefosine was good, and side-effects were tolerable. Initial outcomes at day 28 were promising, with 68.8% and 94.0% of patients having good improvement or cure in Gondar and Boru Meda respectively. In Boru Meda, outcomes were good with 72.7% and 72.9% cure at day 90 and day 180 respectively. In Gondar, results were less promising, with only 12.5% and 26.7% cure at day 90 and day 180, although confidence intervals were wide. In pooled estimates, 48.7% of patients reached cure at day 180, and 32.3% relapsed. Outcomes were better in Boru Meda Hospital, for smaller lesions and for mucosal lesions. CONCLUSIONS/SIGNIFICANCE: Based on miltefosine's good initial response, tolerable side-effects, tablet-form, we propose to include miltefosine for future clinical trials using extended treatment schedules, combination therapy, or targeting specific subgroups. TRIAL REGISTRATION: ClinicalTrials.gov NCT04004754.


Asunto(s)
Antiprotozoarios/uso terapéutico , Leishmaniasis Cutánea/tratamiento farmacológico , Fosforilcolina/análogos & derivados , Administración Oral , Adolescente , Adulto , Antiprotozoarios/administración & dosificación , Antiprotozoarios/efectos adversos , Estudios de Cohortes , Etiopía , Femenino , Humanos , Leishmania/efectos de los fármacos , Masculino , Fosforilcolina/administración & dosificación , Fosforilcolina/efectos adversos , Fosforilcolina/uso terapéutico , Proyectos Piloto , Cumplimiento y Adherencia al Tratamiento/estadística & datos numéricos , Resultado del Tratamiento
12.
PLoS Negl Trop Dis ; 15(3): e0009241, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33739976

RESUMEN

BACKGROUND: Recent circumstantial evidence suggests increasing number of Iranian patients with cutaneous leishmaniasis (CL) who are unresponsive to meglumine antimoniate (MA), the first line of treatment in Iran. Oral meltifosine was previously reported to be effective in visceral leishmaniasis as well CL. The current study is designed to determine efficacy and safety of oral miltefosine for the treatment of anthroponotic cutaneous leishmaniasis (ACL) cases who were refractory to MA in Iran. METHODOLOGY/PRINCIPAL FINDINGS: Miltefosine was orally administered for 27 patients with MA resistant ACL with approved L.tropica infection, at a dosage of ∼2.5 mg/kg daily for 28 days. Patients were evaluated on day 14 and 28, as well as 3, 6 and 12 month post treatment follow up sessions. Laboratory data were performed and repeated at each visit. Data were analyzed using SPSS version 17. Twenty-seven patients including 16 men (59.25%) and 11 women (40.74%) with mean age of 28.56 ± 4.8 (range 3-54 years old) were enrolled. Total number of lesions were 42 (1-4 in each patient). Most of lesions were on face (76.19%). Mean lesions' induration size was 2.38 ± 0.73 cm at the base-line which significantly decreased to1.31 ± 0.58 cm and 0.61 ±0.49 cm after 14 and 28 days of therapy, respectively (p value <0.05). At 12-months follow-up post treatment, 22 patients had definite/partial cure (81.48%) including 17 definitely cured patients, corresponding to a cure rate of 68% on per protocol analysis, and 62.96% according to intention to treat analysis. Recurrence of lesion was only occurred in one patient (3.70%). Nausea was the most subjective complication during the therapy (33.33%). CONCLUSION: Oral miltefosine could be an effective alternative for the treatment of MA-resistant ACL.


Asunto(s)
Antiprotozoarios/uso terapéutico , Antimoniato de Meglumina/uso terapéutico , Fosforilcolina/análogos & derivados , Administración Oral , Adolescente , Adulto , Niño , Preescolar , Resistencia a Medicamentos , Femenino , Humanos , Leishmaniasis Cutánea/tratamiento farmacológico , Masculino , Persona de Mediana Edad , Fosforilcolina/administración & dosificación , Fosforilcolina/efectos adversos , Fosforilcolina/uso terapéutico , Adulto Joven
13.
Am J Trop Med Hyg ; 104(5): 1659-1660, 2021 Mar 11.
Artículo en Inglés | MEDLINE | ID: mdl-33705346

RESUMEN

We present case reports of two patients treated with miltefosine for mucocutaneous leishmaniasis whose gastrointestinal symptoms were initially diagnosed as a drug reaction and only later recognized as due to COVID-19. Gastrointestinal symptoms of COVID-19 are unusual, whereas gastrointestinal adverse drug reactions are very common. These reports exemplify that this infrequent presentation of COVID-19 is likely to be ascribed to a more common etiology such as a gastrointestinal drug reaction.


Asunto(s)
COVID-19/diagnóstico , Fosforilcolina/análogos & derivados , SARS-CoV-2 , Errores Diagnósticos , Humanos , Masculino , Persona de Mediana Edad , Fosforilcolina/efectos adversos , Adulto Joven
14.
PLoS Negl Trop Dis ; 15(3): e0009302, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33780461

RESUMEN

BACKGROUND: Despite a historical association with poor tolerability, a comprehensive review on safety of antileishmanial chemotherapies is lacking. We carried out an update of a previous systematic review of all published clinical trials in visceral leishmaniasis (VL) from 1980 to 2019 to document any reported serious adverse events (SAEs). METHODS: For this updated systematic review, we searched the following databases from 1st Jan 2016 through 2nd of May 2019: PUBMED, Embase, Scopus, Web of Science, Cochrane, clinicaltrials.gov, WHO ICTRP, and the Global Index Medicus. We included randomised and non-randomised interventional studies aimed at assessing therapeutic efficacy and extracted the number of SAEs reported within the first 30 days of treatment initiation. The incidence rate of death (IRD) from individual treatment arms were combined in a meta-analysis using random effects Poisson regression. RESULTS: We identified 157 published studies enrolling 35,376 patients in 347 treatment arms. Pentavalent antimony was administered in 74 (21.3%), multiple-dose liposomal amphotericin B (L-AmB) in 52 (15.0%), amphotericin b deoxycholate in 51 (14.7%), miltefosine in 33 (9.5%), amphotericin b fat/lipid/colloid/cholesterol in 31 (8.9%), and single-dose L-AmB in 17 (4.9%) arms. There was a total of 804 SAEs reported of which 793 (including 428 deaths) were extracted at study arm level (11 SAEs were reported at study level only). During the first 30 days, there were 285 (66.6%) deaths with the overall IRD estimated at 0.068 [95% confidence interval (CI): 0.041-0.114; I2 = 81.4%; 95% prediction interval (PI): 0.001-2.779] per 1,000 person-days at risk; the rate was 0.628 [95% CI: 0.368-1.021; I2 = 82.5%] in Eastern Africa, and 0.041 [95% CI: 0.021-0.081; I2 = 68.1%] in the Indian Subcontinent. In 21 study arms which clearly indicated allowing the inclusion of patients with HIV co-infections the IRD was 0.575 [95% CI: 0.244-1.355; I2 = 91.9%] compared to 0.043 [95% CI: 0.020-0.090; I2 = 62.5%] in 160 arms which excluded HIV co-infections. CONCLUSION: Mortality within the first 30 days of VL treatment initiation was a rarely reported event in clinical trials with an overall estimated rate of 0.068 deaths per 1,000 person-days at risk, though it varied across regions and patient populations. These estimates may serve as a benchmark for future trials against which mortality data from prospective and pharmacovigilance studies can be compared. The methodological limitations exposed by our review support the need to assemble individual patient data (IPD) to conduct robust IPD meta-analyses and generate stronger evidence from existing trials to support treatment guidelines and guide future research.


Asunto(s)
Antiprotozoarios/efectos adversos , Antiprotozoarios/uso terapéutico , Leishmaniasis Visceral/tratamiento farmacológico , Leishmaniasis Visceral/mortalidad , Anfotericina B/efectos adversos , Anfotericina B/uso terapéutico , Antimonio/efectos adversos , Antimonio/uso terapéutico , Ácido Desoxicólico/efectos adversos , Ácido Desoxicólico/uso terapéutico , Combinación de Medicamentos , Humanos , Fosforilcolina/efectos adversos , Fosforilcolina/análogos & derivados , Fosforilcolina/uso terapéutico
15.
PLoS Negl Trop Dis ; 15(1): e0008988, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33507944

RESUMEN

BACKGROUND: Cutaneous leishmaniasis (CL) is a neglected tropical skin disease, caused by Leishmania protozoa. In Pakistan, where CL caused by L. tropica is highly endemic, therapy with pentavalent antimonials is the standard of care, but has significant toxicity when used in systemic therapy, while are no evidence-based safer alternative treatment options for L. tropica. The efficacy of oral miltefosine has not been studied in CL caused by L. tropica. We evaluated effectiveness and tolerability of miltefosine in patients with previous treatment failure or with contraindications to systemic antimonial treatment. METHODS: A retrospective review was conducted of a cohort of CL patients who were treated with a 28-day course of miltefosine between December 2017 and August 2019, in urban Quetta, Pakistan, an area endemic for L. tropica. Descriptive analyses were performed, and effectiveness was assessed by initial response after treatment, and final cure at routine follow up visits, six weeks to three months post-treatment. Tolerability was assessed by routinely reported adverse events. RESULTS: Of the 76 CL patients in the cohort, 42 (55%) had contraindications to systemic antimonial treatment, and 34 (45%) had failure or relapse after antimonial treatment. Twelve patients defaulted during treatment and 12 patients were lost to follow up. In the remaining 52 patients, final cure rate was 77% (40/52). In those with contraindications to systemic antimonial treatment the final cure rate was 83% (24/29) and in the failure and relapse group 70% (16/23). Twenty-eight patients (40.0%) reported 39 mild to moderate adverse events with the main complaints being nausea (41.0%), general malaise (25.6%), and stomach pain (12.8%). CONCLUSION: Results indicate that miltefosine is an effective second line treatment in CL in areas endemic for L. tropica. Prospective studies with systematic follow up are needed to obtain definitive evidence of effectiveness and tolerability, including identification of risk factors for miltefosine treatment failure.


Asunto(s)
Antimonio/uso terapéutico , Antiprotozoarios/uso terapéutico , Leishmania tropica , Leishmaniasis Cutánea/tratamiento farmacológico , Fosforilcolina/análogos & derivados , Adolescente , Adulto , Anciano , Niño , Femenino , Humanos , Masculino , Persona de Mediana Edad , Evaluación del Resultado de la Atención al Paciente , Fosforilcolina/efectos adversos , Fosforilcolina/uso terapéutico , Estudios Retrospectivos , Insuficiencia del Tratamiento , Adulto Joven
16.
Clin Infect Dis ; 73(7): e2457-e2562, 2021 10 05.
Artículo en Inglés | MEDLINE | ID: mdl-33124666

RESUMEN

BACKGROUND: Cutaneous leishmaniasis (CL) is a neglected tropical disease causing an estimated 1 million new cases annually. While antimonial compounds are the standard of care worldwide, they are associated with significant adverse effects. Miltefosine, an oral medication, is United States (US) Food and Drug Administration approved to treat CL caused by Leishmania braziliensis, Leishmania guyanensis, and Leishmania panamensis. Evidence of efficacy in other species and side-effect profiles in CL has been limited. METHODS: Twenty-six patients with CL were treated with miltefosine at the US National Institutes of Health. Species included L. braziliensis (n = 7), L. panamensis (n = 5), Leishmania mexicana (n = 1), Leishmania infantum (n = 3), Leishmania aethiopica (n = 4), Leishmania tropica (n = 2), Leishmania major (n = 1), and unspeciated (n = 3). Demographic and clinic characteristics of the participants, response to treatment, and associated adverse events were analyzed. RESULTS: Treatment with miltefosine resulted in cure in 77 % (20/26) of cases, with cures among all species. Common adverse events included nausea/vomiting (97%) and lack of appetite (54%). Clinical management or dose reduction was required in a third of cases. Gout occurred in 3 individuals with a prior history of gout. Most laboratory abnormalities, including elevated creatinine and aminotransferases, were mild and normalized after treatment. CONCLUSIONS: Our data suggest that miltefosine has good but imperfect efficacy to a wide variety of Leishmania species. While side effects were common and mostly mild to moderate, some resulted in discontinuation of therapy. Due to oral administration, broad efficacy, and manageable toxicities, miltefosine is a viable alternative treatment option for CL, though cost and lack of local availability may limit its widespread use.


Asunto(s)
Antiprotozoarios , Leishmania infantum , Leishmaniasis Cutánea , Antiprotozoarios/efectos adversos , Humanos , Leishmaniasis Cutánea/tratamiento farmacológico , Fosforilcolina/efectos adversos , Fosforilcolina/análogos & derivados
17.
Br J Ophthalmol ; 105(11): 1497-1503, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-32962993

RESUMEN

AIM: To describe the characteristic clinical features and management of keratitis in the patients receiving miltefosine for post-kala-azar dermal leishmaniasis (PKDL). METHODS: The medical records of five patients with PKDL who presented with keratitis were reviewed retrospectively from April 2018 to December 2019. The evaluation included a thorough medical history including details on drugs used, particularly miltefosine. The drug causality assessment was also performed. The clinical and microbiological characteristics of keratitis were noted. RESULTS: The ocular symptoms included pain, redness, watering, photophobia and diminution of vision. Slit-lamp biomicroscopy revealed peripheral, paralimbal, ring-shaped, full-thickness stromal infiltration resulting in ulcerative keratitis in all cases. Two patients had unilateral keratitis, while three had bilateral keratitis. All five patients received miltefosine for an average period of 48 days before the onset of keratitis. The corrected distance visual acuity at presentation ranged from hand movement to 20/125. The causality assessment revealed a 'probable' association between the adverse drug reaction and miltefosine in all patients. Discontinuation of miltefosine and initiation of corticosteroid therapy resulted in resolution of keratitis in all cases. The unilateral keratitis treated with topical corticosteroids had improved outcomes, but poor outcomes were found in the bilateral keratitis. CONCLUSION: These observations indicate that prolonged use of miltefosine might cause keratitis that resembles infectious keratitis. Early diagnosis with discontinuation of the drug and initiation of corticosteroid therapy are the key to successful management.


Asunto(s)
Antiprotozoarios/efectos adversos , Queratitis/inducido químicamente , Leishmaniasis Cutánea/tratamiento farmacológico , Fosforilcolina/análogos & derivados , Adolescente , Adulto , Antiprotozoarios/uso terapéutico , Femenino , Glucocorticoides/uso terapéutico , Humanos , Queratitis/tratamiento farmacológico , Leishmaniasis Cutánea/diagnóstico , Masculino , Persona de Mediana Edad , Fosforilcolina/efectos adversos , Fosforilcolina/uso terapéutico , Estudios Retrospectivos , Adulto Joven
18.
Am J Ophthalmol ; 223: 75-82, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33045218

RESUMEN

PURPOSE: To report a case series of patients with treatment-resistant Acanthamoeba keratitis (AK) using oral miltefosine, often as salvage therapy. DESIGN: Descriptive, retrospective multicenter case series. METHODS: We reviewed 15 patients with AK unresponsive to therapy who were subsequently given adjuvant systemic miltefosine between 2011 and 2017. The main outcome measures were resolution of infection, final visual acuity, tolerance of miltefosine, and clinical course of disease. RESULTS: All patients were treated with biguanides and/or diamidines or azoles without resolution of disease before starting miltefosine. Eleven of 15 patients retained count fingers or better vision, and all were considered disease free at last follow-up. Eleven of 15 patients had worsening inflammation with miltefosine, with 10 of them improving with steroids. Six patients received multiple courses of miltefosine. Most tolerated oral miltefosine well, with mild gastrointestinal symptoms as the most common systemic side effect. CONCLUSIONS: Oral miltefosine is a generally well-tolerated treatment adjuvant in patients with refractory AK. The clinician should be prepared for a steroid-responsive inflammatory response frequently encountered during the treatment course.


Asunto(s)
Queratitis por Acanthamoeba/tratamiento farmacológico , Antiprotozoarios/administración & dosificación , Fosforilcolina/análogos & derivados , Queratitis por Acanthamoeba/diagnóstico , Administración Oral , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Antiprotozoarios/efectos adversos , Biguanidas/uso terapéutico , Femenino , Humanos , Queratoplastia Penetrante , Masculino , Persona de Mediana Edad , Fosforilcolina/administración & dosificación , Fosforilcolina/efectos adversos , Estudios Retrospectivos , Terapia Recuperativa , Resultado del Tratamiento , Agudeza Visual , Adulto Joven
19.
Acta Derm Venereol ; 100(18): adv00322, 2020 11 18.
Artículo en Inglés | MEDLINE | ID: mdl-33205828

RESUMEN

Cutaneous leishmaniasis poses a therapeutic challenge in the paediatric population. The aim of this study was to assess the efficacy and safety of miltefosine treatment for Old World cutaneous leishmaniasis in paediatric patients. A multicentre retrospective review of 10 children (≤ 18 years of age) with cutaneous leishmaniasis treated with miltefosine in Israel was performed. Mean ± standard deviation age at diagnosis was 9.1 ± 5.0 years. The Leishmania species diagnosed was L. tropica in 8 cases and Leishmania major in 2 cases. Mean ± standard deviation duration of treatment was 44.8 ± 20.6 days, with a mean follow-up period of 12.1 ± 17.1 months. Complete response was noted in 8 (80%) patients. Treatment failure was noted in 2 (20%) cases. Side-effects related to the medication were minimal. In conclusion, oral miltefosine may be an effective and safe treatment for Old World cutaneous leishmaniasis caused by Leishmania tropica or Leishmania major in children. However, further studies are warranted to draw a definite conclusion.


Asunto(s)
Antiprotozoarios , Leishmaniasis Cutánea , Adolescente , Antiprotozoarios/efectos adversos , Niño , Preescolar , Humanos , Israel , Leishmaniasis Cutánea/diagnóstico , Leishmaniasis Cutánea/tratamiento farmacológico , Fosforilcolina/efectos adversos , Fosforilcolina/análogos & derivados , Estudios Retrospectivos
20.
Acta Derm Venereol ; 100(18): adv00322, 2020 10 19.
Artículo en Inglés | MEDLINE | ID: mdl-33074340

RESUMEN

Cutaneous leishmaniasis poses a therapeutic challenge in the paediatric population. The aim of this study was to assess the efficacy and safety of miltefosine treatment for Old World cutaneous leishmaniasis in paediatric patients. A multicentre retrospective review of 10 children (≤ 18 years of age) with cutaneous leishmaniasis treated with miltefosine in Israel was performed. Mean ± standard deviation age at diagnosis was 9.1 ± 5.0 years. The Leishmania species diagnosed was L. tropica in 8 cases and Leishmania major in 2 cases. Mean ± standard deviation duration of treatment was 44.8 ± 20.6 days, with a mean follow-up period of 12.1 ± 17.1 months. Complete response was noted in 8 (80%) patients. Treatment failure was noted in 2 (20%) cases. Side-effects related to the medication were minimal. In conclusion, oral miltefosine may be an effective and safe treatment for Old World cutaneous leishmaniasis caused by Leishmania tropica or Leishmania major in children. However, further studies are warranted to draw a definite conclusion.


Asunto(s)
Antiprotozoarios , Leishmaniasis Cutánea , Adolescente , Antiprotozoarios/efectos adversos , Niño , Preescolar , Humanos , Israel , Leishmaniasis Cutánea/diagnóstico , Leishmaniasis Cutánea/tratamiento farmacológico , Fosforilcolina/efectos adversos , Fosforilcolina/análogos & derivados , Estudios Retrospectivos
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