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1.
Drug Saf ; 47(2): 147-159, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37966696

RESUMEN

INTRODUCTION: Pharmacovigilance (PV) in sub-Saharan Africa relies on passive surveillance but underreporting of adverse events (AEs) by health care professionals (HCPs) is a major challenge. A PV enhancement project was implemented to address this in Côte d'Ivoire. OBJECTIVE: To improve safety surveillance of medicines through PV training and mentoring of HCPs in selected health care facilities (HCFs). METHODS: This collaborative project between national PV stakeholders, GSK, and PATH was implemented from September 2018 to February 2020 in Abidjan region, Côte d'Ivoire. Trained PV focal points provided training and regular mentoring of HCPs. Key performance indicator (KPI) categories for AE reporting were the volume of AE reports, efficiency of report transmission and data entry, quality of reports, and quality of the central (Vigilance Unit) response to AE reports. RESULTS: Overall, 1427 HCPs at 91 HCFs were trained. In the 8 months before implementation, 33 AE reports were received versus 85 after 3 months and 361 after 18 months of implementation (71 [83.5%] and 278 [77.0%], respectively, from Abidjan). The KPIs with the highest proportions were: AE reports received centrally (100%), complete AE reports (69.0%), AE reports entered into the local PV database within 48 h (99.6%), and AE reports entered into the global database, VigiBase (86.7%). Report notification within 72 h, causality assessment, and serious AE reporting had proportions below 20%; feedback to reporters was provided for only 0.4% of reports. CONCLUSION: Regular PV trainings and mentoring improved AE reporting in Côte d'Ivoire but further enhancement is required to improve passive safety surveillance.


Medicines and vaccines should be safe and effective for use in the general population. Health care professionals therefore have the responsibility to continuously monitor medicinal products and report any unwanted medical occurrence (adverse event). Training and mentoring of health care professionals can improve adverse event reporting. In Côte d'Ivoire, a training and mentoring project was implemented by GSK, PATH (a non-governmental organisation), and the Ministry of Health, with the objective of increasing adverse event reporting. Over the period of 18 months, 1427 health care professionals from 91 health care facilities in the Abidjan region received training and mentoring. Between January and August 2018, before the project began, 33 adverse event reports were submitted at the central level (to the country's Vigilance Unit), with 11 (33.3%) from the Abidjan region. From September to December 2018, the first three months of project implementation, 85 reports were received, with 71 (83.5%) coming from the Abidjan region. This number increased to 361 by the end of the 18-month project, with 278 (77.0%) coming from the Abidjan region. Training of health care professionals therefore improved adverse event reporting, mainly from the Abidjan region but also nationwide. Assessments of the efficiency of adverse event reporting and the quality of adverse events reports received by the Vigilance Unit showed promising results, although there was room for improvement. Lessons learned from this project can flexibly serve the needs of other countries with less functional systems for reporting adverse events associated with medicinal products.


Asunto(s)
Tutoría , Farmacovigilancia , Humanos , Côte d'Ivoire/epidemiología , Proyectos Piloto , África del Sur del Sahara
2.
BMJ Open ; 13(9): e071079, 2023 09 14.
Artículo en Inglés | MEDLINE | ID: mdl-37709326

RESUMEN

OBJECTIVES: The slow progress of pharmacovigilance (PV) in low-income and middle-income countries (LMIC) raises questions about core challenges on the growth of PV, and the appropriateness of strategies used so far to develop PV. Therefore, this scoping review aims to describe strategies and interventions to strengthen PV in LMIC and to propose recommendations for future investments in PV capacity building. INCLUSION CRITERIA: Publications included were primary studies, articles, policy and guideline papers, describing interventions to strengthen PV in LMIC. METHODS: The review was conducted following the Joanna Briggs Institute (JBI) guidelines on conducting scoping reviews. Literature searches were performed in MEDLINE, EMBASE, Web of Science, PDQ-evidence, CINAHL and other relevant websites from January 1990 to January 2021. Two reviewers independently screened titles, abstracts and full texts. One reviewer performed data extraction and descriptive analysis, which were reviewed by two other reviewers. RESULTS: 10 922 unique titles were screened and 152 were eligible for full text review. Of these, 57 and an additional 13 reports from grey literature fulfilled eligibility criteria for inclusion in the review. These were grouped into two categories: (1) Interventions aimed at increasing PV knowledge and adverse drug reactions (ADR) reporting (45 papers), primarily education of healthcare professionals (HCP), alone or in combination with other interventions such as mobile and electronic reporting and (2) Interventions aimed at strengthening various components of the national PV system (25 papers), describing strategies or mixed interventions implemented at the national level, targeting different components of the national PV system. CONCLUSIONS: Results of this review suggest that educating HCP on ADR reporting is the most common approach to build PV capacity in LMIC. Though important, education alone is insufficient and should ideally be organised within the holistic framework of strengthening national PV systems, with a focus on also building capacity for advanced activities such as signal detection.


Asunto(s)
Países en Desarrollo , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos , Humanos , Farmacovigilancia , Escolaridad , Academias e Institutos , Creación de Capacidad , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/prevención & control
3.
BMC Public Health ; 22(1): 1568, 2022 08 17.
Artículo en Inglés | MEDLINE | ID: mdl-35978276

RESUMEN

Pharmacovigilance (PV) systems in many countries in sub-Saharan Africa (SSA) are not fully functional. The spontaneous adverse events (AE) reporting rate in SSA is lower than in any other region of the world, and healthcare professionals (HCPs) in SSA countries have limited awareness of AE surveillance and reporting procedures. The GSK PV enhancement pilot initiative, in collaboration with PATH and national PV stakeholders, aimed to strengthen passive safety surveillance through a training and mentoring program of HCPs in healthcare facilities in three SSA countries: Malawi, Côte d'Ivoire, and Democratic Republic of Congo (DRC). Project implementation was country-driven, led by the Ministry of Health via the national PV center or department, and was adapted to each country's needs. The implementation phase for each country was scheduled to last 18 months. At project start, low AE reporting rates reflected that awareness of PV practices was very low among HCPs in all three countries, even if a national PV center already existed. Malawi did not have a functional PV system nor a national PV center prior to the start of the initiative. After 18 months of PV training and mentoring of HCPs, passive safety surveillance was enhanced significantly as shown by the increased number of AE reports: from 22 during 2000-2016 to 228 in 18 months to 511 in 30 months in Malawi, and ~ 80% of AE reports from trained healthcare facilities in Côte d'Ivoire. In DRC, project implementation ended after 7 months because of the SARS-CoV-2 pandemic. Main challenges encountered were delayed AE report transmission (1-2 months, due mainly to remoteness of healthcare facilities and complex procedures for transmitting reports to the national PV center), delayed or no causality assessment due to lack of expertise and/or funding, negative perceptions among HCPs toward AE reporting, and difficulties in engaging public health programs with the centralized AE reporting processes. This pilot project has enabled the countries to train more HCPs, increased reporting of AEs and identified KPIs that could be flexibly replicated in each country. Country ownership and empowerment is essential to sustain these improvements and build a stronger AE reporting culture.


Asunto(s)
COVID-19 , Farmacovigilancia , Humanos , Malaui , Proyectos Piloto , SARS-CoV-2
5.
PLoS One ; 16(2): e0246540, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33571237

RESUMEN

INTRODUCTION: Active pharmacovigilance studies are pivotal to better characterize vaccine safety. METHODS: These are multicenter prospective cohort studies to evaluate the safety of the 2017 and 2018 seasonal trivalent influenza vaccines (TIVs) manufactured by Instituto Butantan, by means of active pharmacovigilance practices. Elderly, children, healthcare workers, pregnant women, and women in the puerperium period were invited to participate in the study during the 2017 and 2018 Brazilian national seasonal influenza vaccination campaigns. Following immunization, participants were observed for 30 minutes and they received a participant card to register adverse events information. All safety information registered were checked at a clinical site visit 14 days after immunization and by a telephone contact 42 days after immunization for unsolicited Adverse Events (AE) and Guillain-Barré Syndrome (GBS). RESULTS: A total of 942 volunteers participated in the two studies: 305 elderly, 109 children, 108 pregnant women, 32 women in the postpartum period, and 388 health workers. Overall, the median number of AR per participant ranged from 1 to 4. The lowest median number of AR per participant was observed among healthcare workers (1 AR per participant) and the highest among pregnant women (4 AR per participant). Overall, local pain (46.6%) was the most frequent solicited local AR. The most frequent systemic ARs were: headache (22.5%) followed by fatigue (16.0%), and malaise (11.0%). The majority of solicited ARs (96%) were mild, Grades 1 or 2), only 3% were Grade 3, and 1% was Grade 4. No serious AEs, including Guillain-Barré Syndrome, were reported up to 42 days postvaccination. CONCLUSION: The results from the two studies confirmed that the 2017 and 2018 seasonal trivalent influenza vaccines produced by Instituto Butantan were safe and that active pharmacovigilance studies should be considered, when it is feasible, as an important initiative to monitor vaccine safety in the post-marketing period.


Asunto(s)
Vacunas contra la Influenza/efectos adversos , Farmacovigilancia , Anciano , Brasil , Niño , Preescolar , Femenino , Personal de Salud/estadística & datos numéricos , Humanos , Lactante , Masculino , Mujeres Embarazadas
6.
PloS One, v. 16, n. 2, e0246540, fev. 2021
Artículo en Inglés | Sec. Est. Saúde SP, SESSP-IBPROD, Sec. Est. Saúde SP | ID: bud-3536

RESUMEN

Active pharmacovigilance studies are pivotal to better characterize vaccine safety. Methods: These are multicenter prospective cohort studies to evaluate the safety of the 2017 and 2018 seasonal trivalent influenza vaccines (TIVs) manufactured by Instituto Butantan, by means of active pharmacovigilance practices. Elderly, children, healthcare workers, pregnant women, and women in the puerperium period were invited to participate in the study during the 2017 and 2018 Brazilian national seasonal influenza vaccination campaigns. Following immunization, participants were observed for 30 minutes and they received a participant card to register adverse events information. All safety information registered were checked at a clinical site visit 14 days after immunization and by a telephone contact 42 days after immunization for unsolicited Adverse Events (AE) and Guillain-Barré Syndrome (GBS). Results: A total of 942 volunteers participated in the two studies: 305 elderly, 109 children, 108 pregnant women, 32 women in the postpartum period, and 388 health workers. Overall, the median number of AR per participant ranged from 1 to 4. The lowest median number of AR per participant was observed among healthcare workers (1 AR per participant) and the highest among pregnant women (4 AR per participant). Overall, local pain (46.6%) was the most frequent solicited local AR. The most frequent systemic ARs were: headache (22.5%) followed by fatigue (16.0%), and malaise (11.0%). The majority of solicited ARs (96%) were mild, Grades 1 or 2), only 3% were Grade 3, and 1% was Grade 4. No serious AEs, including Guillain-Barré Syndrome, were reported up to 42 days postvaccination. Conclusion: The results from the two studies confirmed that the 2017 and 2018 seasonal trivalent influenza vaccines produced by Instituto Butantan were safe and that active pharmacovigilance studies should be considered, when it is feasible, as an important initiative to monitor vaccine safety in the post-marketing period.

7.
Drug Saf ; 43(6): 583-593, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32239447

RESUMEN

INTRODUCTION: Pharmacovigilance (PV) systems to monitor drug and vaccine safety are often inadequate in sub-Saharan Africa. In Malawi, a PV enhancement initiative was introduced to address major barriers to PV. OBJECTIVE: The objective of this initiative was to improve reporting of adverse events (AEs) by strengthening passive safety surveillance via PV training and mentoring of local PV stakeholders and healthcare providers (HCPs) at their own healthcare facilities (HCFs). METHODS: An 18-month PV training and mentoring programme was implemented in collaboration with national stakeholders, and in partnership with the Ministry of Health, GSK and PATH. Two-day training was provided to Expanded Programme on Immunisation coordinators, identified as responsible for AE reporting, and four National Regulatory Authority representatives. Abridged PV training and mentoring were provided regularly to HCPs. Support was given in upgrading the national PV system. Key performance indicators included the number of AEs reported, transmission of AE forms, completeness of reports, serious AEs reported and timeliness of recording into VigiFlow. RESULTS: In 18 months, 443 HCPs at 61 HCFs were trained. The number of reported AEs increased from 22 (January 2000 to October 2016) to 228 (November 2016 to May 2018), enabling Malawi to become a member of the World Health Organization Programme for International Drug Monitoring. Most (98%) AE report forms contained mandatory information on reporter, event, patient and product, but under 1% were transmitted to the national PV office within 48 h. CONCLUSION: Regular PV training and mentoring of HCPs were effective in enhancing passive safety surveillance in Malawi, but the transmission of reports to the national PV centre requires further improvement.


When a medicine or vaccine is made available for use, healthcare organisations maintain regular surveillance to confirm that the medicinal product is safe and effective. The efficiency of this surveillance depends mainly on the healthcare system and medical practices in place in each country. An important element is an effective procedure for identifying and reporting any unwanted medical occurrences (adverse events) after taking a medicinal product. In countries where regular safety surveillance has not been maintained, it is important to train and mentor healthcare providers on the need to be aware of adverse events and the importance of adhering to safety reporting procedures. GSK and partners conducted a pilot project in Malawi with the aim of improving adverse event reporting by training and mentoring healthcare providers. Training sessions and continuous mentoring were conducted over 18 months, involving 443 healthcare providers at 61 healthcare facilities. There was a large increase in the number of adverse events reported: from 22 in the 16-year period before the project started to 228 during the 18-month project period. This project showed that the training and mentoring programme for healthcare providers was effective in increasing the number of adverse events reported. This enabled Malawi to join the World Health Organization's international safety reporting scheme. Other countries facing similar challenges in safety surveillance systems could benefit from a similar approach.


Asunto(s)
Sistemas de Registro de Reacción Adversa a Medicamentos , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/epidemiología , Personal de Salud/educación , Farmacovigilancia , África del Sur del Sahara , Personal de Salud/organización & administración , Humanos , Malaui , Tutoría , Proyectos Piloto
8.
Vaccine ; 37(52): 7560-7565, 2019 12 10.
Artículo en Inglés | MEDLINE | ID: mdl-31590933

RESUMEN

Instituto Butantan is a biomedical research center and vaccine manufacturer affiliated with the São Paulo State Secretary of Health in Brazil. In 2013, Instituto Butantan successfully licensed its trivalent influenza vaccine, in order to support the Brazilian National Immunization Program's influenza vaccination strategy, which was introduced in 1999. In order to respond to the increasing influenza vaccine demand worldwide, Instituto Butantan is undergoing prequalification of its trivalent influenza vaccine by the World Health Organization (WHO). A key requirement of the prequalification review was the submission of a pharmacovigilance plan, including an active surveillance evaluation, for the trivalent influenza vaccine, and proof of a functional pharmacovigilance system at Instituto Butantan. The aim of this paper is to describe the capacity strengthening process of the pharmacovigilance system at Instituto Butantan for the WHO prequalification of the trivalent influenza vaccine. This process was supported by PATH and the U.S. Federal Government Biomedical Advanced Research and Development Authority (BARDA). The key strategic axes for this capacity strengthening process included the improvement of organizational structure, human resources training, internal processes and procedures, appropriate documentation, and acquisition of an E2B compliant pharmacovigilance database. The project led to the establishment of a functional pharmacovigilance system compliant with international regulatory requirements.


Asunto(s)
Vacunas contra la Influenza/normas , Farmacovigilancia , Organización Mundial de la Salud , Brasil , Humanos , Gripe Humana/prevención & control , Tecnología Farmacéutica , Vacunas Atenuadas/normas
9.
Vaccine ; 37(52): 7560-7565, 2019.
Artículo en Inglés | Sec. Est. Saúde SP, SESSP-IBPROD, Sec. Est. Saúde SP | ID: but-ib17656

RESUMEN

Instituto Butantan is a biomedical research center and vaccine manufacturer affiliated with the São Paulo State Secretary of Health in Brazil. In 2013, Instituto Butantan successfully licensed its trivalent influenza vaccine, in order to support the Brazilian National Immunization Program's influenza vaccination strategy, which was introduced in 1999. In order to respond to the increasing influenza vaccine demand worldwide, Instituto Butantan is undergoing prequalification of its trivalent influenza vaccine by the World Health Organization (WHO). A key requirement of the prequalification review was the submission of a pharmacovigilance plan, including an active surveillance evaluation, for the trivalent influenza vaccine, and proof of a functional pharmacovigilance system at Instituto Butantan. The aim of this paper is to describe the capacity strengthening process of the pharmacovigilance system at Instituto Butantan for the WHO prequalification of the trivalent influenza vaccine. This process was supported by PATH and the U.S. Federal Government Biomedical Advanced Research and Development Authority (BARDA). The key strategic axes for this capacity strengthening process included the improvement of organizational structure, human resources training, internal processes and procedures, appropriate documentation, and acquisition of an E2B compliant pharmacovigilance database. The project led to the establishment of a functional pharmacovigilance system compliant with international regulatory requirements.

10.
Vaccine, v. 37, n. 52, p. 7560-7565, dez. 2019
Artículo en Inglés | Sec. Est. Saúde SP, SESSP-IBPROD, Sec. Est. Saúde SP | ID: bud-3031

RESUMEN

Instituto Butantan is a biomedical research center and vaccine manufacturer affiliated with the São Paulo State Secretary of Health in Brazil. In 2013, Instituto Butantan successfully licensed its trivalent influenza vaccine, in order to support the Brazilian National Immunization Program's influenza vaccination strategy, which was introduced in 1999. In order to respond to the increasing influenza vaccine demand worldwide, Instituto Butantan is undergoing prequalification of its trivalent influenza vaccine by the World Health Organization (WHO). A key requirement of the prequalification review was the submission of a pharmacovigilance plan, including an active surveillance evaluation, for the trivalent influenza vaccine, and proof of a functional pharmacovigilance system at Instituto Butantan. The aim of this paper is to describe the capacity strengthening process of the pharmacovigilance system at Instituto Butantan for the WHO prequalification of the trivalent influenza vaccine. This process was supported by PATH and the U.S. Federal Government Biomedical Advanced Research and Development Authority (BARDA). The key strategic axes for this capacity strengthening process included the improvement of organizational structure, human resources training, internal processes and procedures, appropriate documentation, and acquisition of an E2B compliant pharmacovigilance database. The project led to the establishment of a functional pharmacovigilance system compliant with international regulatory requirements.

11.
Afr J Health Sci ; 12(1-2): 26-30, 2005.
Artículo en Inglés | MEDLINE | ID: mdl-17298136

RESUMEN

To investigate an association between diarrhoea and malaria in children, a study was conducted in Buea on 215 children ranging from 0 - 5 years of age attending the Buea District hospital as out patients. Out of this number 118 (54.9/ ) had acute diarrhoea. The control group without diarrhoea comprised 97 children. Thick blood smears were examined to detect malaria parasites. The prevalence of malaria in the study population was 60/ and mean parasite density was 4460.4 parasites/microl of blood (SD+/-3047.8). There was no significant difference in parasitaemia in children with and without diarrhoea (p>0.5). The prevalence of concurrent malaria and diarrhoea was 20% compared with 40% malaria prevalence in children without diarrhoea. We conclude that there was no association between malaria and diarrhoea in the study population.


Asunto(s)
Diarrea/epidemiología , Enfermedades Endémicas , Malaria Falciparum/epidemiología , Enfermedad Aguda , Camerún/epidemiología , Estudios de Casos y Controles , Preescolar , Comorbilidad , Diarrea/parasitología , Femenino , Humanos , Lactante , Recién Nacido , Masculino , Prevalencia
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