A Repeat Random Survey of the Prevalence of Falsified and Substandard Antimalarials in the Lao PDR: A Change for the Better
- Autores
- Tabernero, Patricia; Mayxay, Mayfong; Culzoni, Maria Julia; Dwivedi, Prabha; Swamidoss, Isabel; Allan, Elizabeth Louise; Khanthavong, Maniphone; Phonlavong, Chindaphone; Vilayhong, Chantala; Yeuchaixiong, Sengchanh; Sichanh, Chanvilay; Sengaloundeth, Sivong; Kaur, Harparkash; Fernandez, Facundo M.; Green, Michael D.; Newton, Paul N.
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In 2003, a stratified random sample survey was conducted in the Lao People's Democratic Republic (Laos) to study the availability and quality of antimalarials in the private sector. In 2012, this survey was repeated to allow a statistically valid analysis of change through time. The counterfeit detection device 3 (CD-3) was used to assess packaging quality in the field and HPLC and mass spectroscopy analysis chemical analysis performed. The availability of oral artesunate monotherapies had significantly decreased from 22.9% (22) of 96 outlets in southern Laos in 2003 to 4.8% (7) of 144 outlets in 2012 (P < 0.0001). All the samples collected in the 2012 survey contained the correct active pharmaceutical ingredients (APIs) in contrast to the 21 (84%) falsified artesunate samples found in the 2003 survey. Although none of the medicines found in 2012 survey had evidence for falsification, 25.4% (37) of the samples were outside the 90-110% pharmacopeial limits of the label claim, suggesting that they were substandard or degraded. Results obtained from this survey show that patients are still exposed to poorly manufactured drugs or to ineffective medicines such as chloroquine. The quality of artemisinin-based combination therapies (ACTs) used in Laos needs to be monitored, since falsified ACTs would have devastating consequences in public health.
Fil: Tabernero, Patricia. Lao Oxford Mahosot Hospital; China
Fil: Mayxay, Mayfong. University of Oxford; Reino Unido
Fil: Culzoni, Maria Julia. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
Fil: Dwivedi, Prabha. University Of Heath Sciences; China
Fil: Swamidoss, Isabel. U.S. Centers for Disease Control and Prevention; Estados Unidos
Fil: Allan, Elizabeth Louise. Georgia Institute of Techology; Estados Unidos
Fil: Khanthavong, Maniphone. U.S. Centers for Disease Control and Prevention; Estados Unidos
Fil: Phonlavong, Chindaphone. U.S. Centers for Disease Control and Prevention; Estados Unidos
Fil: Vilayhong, Chantala. Centre of Malariology, Parasitology and Entomology; China
Fil: Yeuchaixiong, Sengchanh. Centre of Malariology, Parasitology and Entomology; China
Fil: Sichanh, Chanvilay. Bureau of Food and Drug Inspection; China
Fil: Sengaloundeth, Sivong. Food and Drug Department; China
Fil: Kaur, Harparkash. University of London; Reino Unido
Fil: Fernandez, Facundo M.. Georgia Institute of Techology; Estados Unidos
Fil: Green, Michael D.. National Center for Infectious Diseases; Estados Unidos
Fil: Newton, Paul N.. University of Oxford; Reino Unido - Materia
-
RANDOM SURVEY
ANTIMALARIALS
FALSIFIED AND SUBSTANDARD MEDICINES - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/50375
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A Repeat Random Survey of the Prevalence of Falsified and Substandard Antimalarials in the Lao PDR: A Change for the BetterTabernero, PatriciaMayxay, MayfongCulzoni, Maria JuliaDwivedi, PrabhaSwamidoss, IsabelAllan, Elizabeth LouiseKhanthavong, ManiphonePhonlavong, ChindaphoneVilayhong, ChantalaYeuchaixiong, SengchanhSichanh, ChanvilaySengaloundeth, SivongKaur, HarparkashFernandez, Facundo M.Green, Michael D.Newton, Paul N.RANDOM SURVEYANTIMALARIALSFALSIFIED AND SUBSTANDARD MEDICINEShttps://purl.org/becyt/ford/3.3https://purl.org/becyt/ford/3In 2003, a stratified random sample survey was conducted in the Lao People's Democratic Republic (Laos) to study the availability and quality of antimalarials in the private sector. In 2012, this survey was repeated to allow a statistically valid analysis of change through time. The counterfeit detection device 3 (CD-3) was used to assess packaging quality in the field and HPLC and mass spectroscopy analysis chemical analysis performed. The availability of oral artesunate monotherapies had significantly decreased from 22.9% (22) of 96 outlets in southern Laos in 2003 to 4.8% (7) of 144 outlets in 2012 (P < 0.0001). All the samples collected in the 2012 survey contained the correct active pharmaceutical ingredients (APIs) in contrast to the 21 (84%) falsified artesunate samples found in the 2003 survey. Although none of the medicines found in 2012 survey had evidence for falsification, 25.4% (37) of the samples were outside the 90-110% pharmacopeial limits of the label claim, suggesting that they were substandard or degraded. Results obtained from this survey show that patients are still exposed to poorly manufactured drugs or to ineffective medicines such as chloroquine. The quality of artemisinin-based combination therapies (ACTs) used in Laos needs to be monitored, since falsified ACTs would have devastating consequences in public health.Fil: Tabernero, Patricia. Lao Oxford Mahosot Hospital; ChinaFil: Mayxay, Mayfong. University of Oxford; Reino UnidoFil: Culzoni, Maria Julia. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; ArgentinaFil: Dwivedi, Prabha. University Of Heath Sciences; ChinaFil: Swamidoss, Isabel. U.S. Centers for Disease Control and Prevention; Estados UnidosFil: Allan, Elizabeth Louise. Georgia Institute of Techology; Estados UnidosFil: Khanthavong, Maniphone. U.S. Centers for Disease Control and Prevention; Estados UnidosFil: Phonlavong, Chindaphone. U.S. Centers for Disease Control and Prevention; Estados UnidosFil: Vilayhong, Chantala. Centre of Malariology, Parasitology and Entomology; ChinaFil: Yeuchaixiong, Sengchanh. Centre of Malariology, Parasitology and Entomology; ChinaFil: Sichanh, Chanvilay. Bureau of Food and Drug Inspection; ChinaFil: Sengaloundeth, Sivong. Food and Drug Department; ChinaFil: Kaur, Harparkash. University of London; Reino UnidoFil: Fernandez, Facundo M.. Georgia Institute of Techology; Estados UnidosFil: Green, Michael D.. National Center for Infectious Diseases; Estados UnidosFil: Newton, Paul N.. University of Oxford; Reino UnidoAmerican Society of Tropical Medicine and Hygiene2015-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/50375Tabernero, Patricia; Mayxay, Mayfong; Culzoni, Maria Julia; Dwivedi, Prabha; Swamidoss, Isabel; et al.; A Repeat Random Survey of the Prevalence of Falsified and Substandard Antimalarials in the Lao PDR: A Change for the Better; American Society of Tropical Medicine and Hygiene; American Journal of Tropical Medicine and Hygiene; 92; 6; 6-2015; 95-1040002-96371476-1645CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.4269/ajtmh.15-0057info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4455074/info:eu-repo/semantics/altIdentifier/url/http://www.ajtmh.org/content/journals/10.4269/ajtmh.15-0057info:eu-repo/semantics/altIdentifier/doi/10.4269%2Fajtmh.15-0057info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:45:00Zoai:ri.conicet.gov.ar:11336/50375instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:45:00.83CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
A Repeat Random Survey of the Prevalence of Falsified and Substandard Antimalarials in the Lao PDR: A Change for the Better |
title |
A Repeat Random Survey of the Prevalence of Falsified and Substandard Antimalarials in the Lao PDR: A Change for the Better |
spellingShingle |
A Repeat Random Survey of the Prevalence of Falsified and Substandard Antimalarials in the Lao PDR: A Change for the Better Tabernero, Patricia RANDOM SURVEY ANTIMALARIALS FALSIFIED AND SUBSTANDARD MEDICINES |
title_short |
A Repeat Random Survey of the Prevalence of Falsified and Substandard Antimalarials in the Lao PDR: A Change for the Better |
title_full |
A Repeat Random Survey of the Prevalence of Falsified and Substandard Antimalarials in the Lao PDR: A Change for the Better |
title_fullStr |
A Repeat Random Survey of the Prevalence of Falsified and Substandard Antimalarials in the Lao PDR: A Change for the Better |
title_full_unstemmed |
A Repeat Random Survey of the Prevalence of Falsified and Substandard Antimalarials in the Lao PDR: A Change for the Better |
title_sort |
A Repeat Random Survey of the Prevalence of Falsified and Substandard Antimalarials in the Lao PDR: A Change for the Better |
dc.creator.none.fl_str_mv |
Tabernero, Patricia Mayxay, Mayfong Culzoni, Maria Julia Dwivedi, Prabha Swamidoss, Isabel Allan, Elizabeth Louise Khanthavong, Maniphone Phonlavong, Chindaphone Vilayhong, Chantala Yeuchaixiong, Sengchanh Sichanh, Chanvilay Sengaloundeth, Sivong Kaur, Harparkash Fernandez, Facundo M. Green, Michael D. Newton, Paul N. |
author |
Tabernero, Patricia |
author_facet |
Tabernero, Patricia Mayxay, Mayfong Culzoni, Maria Julia Dwivedi, Prabha Swamidoss, Isabel Allan, Elizabeth Louise Khanthavong, Maniphone Phonlavong, Chindaphone Vilayhong, Chantala Yeuchaixiong, Sengchanh Sichanh, Chanvilay Sengaloundeth, Sivong Kaur, Harparkash Fernandez, Facundo M. Green, Michael D. Newton, Paul N. |
author_role |
author |
author2 |
Mayxay, Mayfong Culzoni, Maria Julia Dwivedi, Prabha Swamidoss, Isabel Allan, Elizabeth Louise Khanthavong, Maniphone Phonlavong, Chindaphone Vilayhong, Chantala Yeuchaixiong, Sengchanh Sichanh, Chanvilay Sengaloundeth, Sivong Kaur, Harparkash Fernandez, Facundo M. Green, Michael D. Newton, Paul N. |
author2_role |
author author author author author author author author author author author author author author author |
dc.subject.none.fl_str_mv |
RANDOM SURVEY ANTIMALARIALS FALSIFIED AND SUBSTANDARD MEDICINES |
topic |
RANDOM SURVEY ANTIMALARIALS FALSIFIED AND SUBSTANDARD MEDICINES |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/3.3 https://purl.org/becyt/ford/3 |
dc.description.none.fl_txt_mv |
In 2003, a stratified random sample survey was conducted in the Lao People's Democratic Republic (Laos) to study the availability and quality of antimalarials in the private sector. In 2012, this survey was repeated to allow a statistically valid analysis of change through time. The counterfeit detection device 3 (CD-3) was used to assess packaging quality in the field and HPLC and mass spectroscopy analysis chemical analysis performed. The availability of oral artesunate monotherapies had significantly decreased from 22.9% (22) of 96 outlets in southern Laos in 2003 to 4.8% (7) of 144 outlets in 2012 (P < 0.0001). All the samples collected in the 2012 survey contained the correct active pharmaceutical ingredients (APIs) in contrast to the 21 (84%) falsified artesunate samples found in the 2003 survey. Although none of the medicines found in 2012 survey had evidence for falsification, 25.4% (37) of the samples were outside the 90-110% pharmacopeial limits of the label claim, suggesting that they were substandard or degraded. Results obtained from this survey show that patients are still exposed to poorly manufactured drugs or to ineffective medicines such as chloroquine. The quality of artemisinin-based combination therapies (ACTs) used in Laos needs to be monitored, since falsified ACTs would have devastating consequences in public health. Fil: Tabernero, Patricia. Lao Oxford Mahosot Hospital; China Fil: Mayxay, Mayfong. University of Oxford; Reino Unido Fil: Culzoni, Maria Julia. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina Fil: Dwivedi, Prabha. University Of Heath Sciences; China Fil: Swamidoss, Isabel. U.S. Centers for Disease Control and Prevention; Estados Unidos Fil: Allan, Elizabeth Louise. Georgia Institute of Techology; Estados Unidos Fil: Khanthavong, Maniphone. U.S. Centers for Disease Control and Prevention; Estados Unidos Fil: Phonlavong, Chindaphone. U.S. Centers for Disease Control and Prevention; Estados Unidos Fil: Vilayhong, Chantala. Centre of Malariology, Parasitology and Entomology; China Fil: Yeuchaixiong, Sengchanh. Centre of Malariology, Parasitology and Entomology; China Fil: Sichanh, Chanvilay. Bureau of Food and Drug Inspection; China Fil: Sengaloundeth, Sivong. Food and Drug Department; China Fil: Kaur, Harparkash. University of London; Reino Unido Fil: Fernandez, Facundo M.. Georgia Institute of Techology; Estados Unidos Fil: Green, Michael D.. National Center for Infectious Diseases; Estados Unidos Fil: Newton, Paul N.. University of Oxford; Reino Unido |
description |
In 2003, a stratified random sample survey was conducted in the Lao People's Democratic Republic (Laos) to study the availability and quality of antimalarials in the private sector. In 2012, this survey was repeated to allow a statistically valid analysis of change through time. The counterfeit detection device 3 (CD-3) was used to assess packaging quality in the field and HPLC and mass spectroscopy analysis chemical analysis performed. The availability of oral artesunate monotherapies had significantly decreased from 22.9% (22) of 96 outlets in southern Laos in 2003 to 4.8% (7) of 144 outlets in 2012 (P < 0.0001). All the samples collected in the 2012 survey contained the correct active pharmaceutical ingredients (APIs) in contrast to the 21 (84%) falsified artesunate samples found in the 2003 survey. Although none of the medicines found in 2012 survey had evidence for falsification, 25.4% (37) of the samples were outside the 90-110% pharmacopeial limits of the label claim, suggesting that they were substandard or degraded. Results obtained from this survey show that patients are still exposed to poorly manufactured drugs or to ineffective medicines such as chloroquine. The quality of artemisinin-based combination therapies (ACTs) used in Laos needs to be monitored, since falsified ACTs would have devastating consequences in public health. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-06 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/50375 Tabernero, Patricia; Mayxay, Mayfong; Culzoni, Maria Julia; Dwivedi, Prabha; Swamidoss, Isabel; et al.; A Repeat Random Survey of the Prevalence of Falsified and Substandard Antimalarials in the Lao PDR: A Change for the Better; American Society of Tropical Medicine and Hygiene; American Journal of Tropical Medicine and Hygiene; 92; 6; 6-2015; 95-104 0002-9637 1476-1645 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/50375 |
identifier_str_mv |
Tabernero, Patricia; Mayxay, Mayfong; Culzoni, Maria Julia; Dwivedi, Prabha; Swamidoss, Isabel; et al.; A Repeat Random Survey of the Prevalence of Falsified and Substandard Antimalarials in the Lao PDR: A Change for the Better; American Society of Tropical Medicine and Hygiene; American Journal of Tropical Medicine and Hygiene; 92; 6; 6-2015; 95-104 0002-9637 1476-1645 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.4269/ajtmh.15-0057 info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4455074/ info:eu-repo/semantics/altIdentifier/url/http://www.ajtmh.org/content/journals/10.4269/ajtmh.15-0057 info:eu-repo/semantics/altIdentifier/doi/10.4269%2Fajtmh.15-0057 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Society of Tropical Medicine and Hygiene |
publisher.none.fl_str_mv |
American Society of Tropical Medicine and Hygiene |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |