The safety of H1N1 vaccine in children in Saudi Arabia: a cohort study using modern technology in a developing country

A systematic review of the role of pharmacists in vaccination services in low-and middle-income countries

BACKGROUND

Pharmacists' role in vaccination has expanded in some countries with pharmacists having greater authority to perform various immunization activities, from vaccine storage, vaccine adverse event reporting, vaccination education and advocacy, to vaccine administration. However, pharmacists' present involvement in vaccination services is poorly understood across low- and middle-income countries (LMICs).

OBJECTIVE

To identify and synthesize evidence on pharmacists' roles in offering vaccination services in LMICs.

METHODS

We searched three databases (PubMed, Embase, Scopus) and the gray literature to identify articles which described pharmacist involvement in vaccination services in LMICs. We abstracted data on reported roles of pharmacists in vaccination, as well as relevant country, vaccines, and populations served.

RESULTS

From the initial 612 records we identified, twenty-five (n = 25) studies representing 25 LMICs met our inclusion criteria. The most commonly reported role of pharmacists in vaccination across identified LMICs was vaccine advocacy and education (n = 15 countries). Pharmacist administered vaccination and storage of vaccines at pharmacies was reported in 8 countries. An additional 6 countries reported allowing vaccination at community pharmacies by other healthcare professionals. Immunization related training for pharmacists was reported or required in 8 countries. Fewer studies reported that pharmacists have access to patient immunization records in their respective LMICs (n = 6 countries) or had reported pharmacist involvement in vaccine adverse event reporting (n = 4 countries).

CONCLUSIONS

Pharmacists have the potential to play an important role in increasing access to vaccines and improving coverage, yet evidence of their role in vaccinations remains limited across LMICs. Greater documentation of pharmacists' involvement in vaccination services in LMICs is needed to demonstrate the value of successful integration of pharmacists in immunization programs.

Intensive Monitoring Studies for Assessing Medicines: A Systematic Review

Introduction: Intensive monitoring (IM) is one of the methods of post-marketing active surveillance based upon event monitoring, which has received interest in the current medicines regulatory landscape. For a specific period of time, IM involves primary data collection and is actively focused on gathering longitudinal information, mainly safety, since the first day of drug use.

Objectives: To describe IM systems and studies' data published over 11-years period (2006–2016). Specifically, we reviewed study population/event surveillance, methodological approaches, limitations, and its applications in the real-world evidence generation data.

Methods: We completed a systematic search of MEDLINE and EMBASE to identify studies published from 2006 to 2016, that used IM methodology. We extracted data using a standardized form and results were analyzed descriptively. The methodological quality of selected studies was assessed using the modified Downs and Black checklist.

Results: From 1,400 screened citations, we identified 86 papers, corresponding to 69 different studies. Seventy percent of reviewed studies corresponded to established IM systems, of which, more than half were prescription event monitoring (PEM) and modified-PEM. Among non-established IM systems, vaccines were the most common studied drugs (n = 14). The median cohort size ranged from 488 (hospitals) to 10,479 (PEM) patients. Patients and caregivers were the event data source in 39.1% of studies. The mean overall quality score was similar between established and non-established IM.

Conclusions: Over the study period, IM studies were implemented in 26 countries with different maturity levels of post-marketing surveillance systems. We identified two major limitations: only 20% of studies were conducted at hospital-level, which is a matter of concern, insofar as healthcare systems are facing a lack of access to new medicines at ambulatory care level. Additionally, IM access to data of drug exposure cohorts, either at identification or at follow-up stages, could somehow constitute a barrier, given the complexity of managerial, linkable, and privacy data issues.

Narcolepsy in Saudi patients before and after the 2009 H1N1 vaccination. The experience of 2 referral centers

Objectives:

To assess the number of Saudi patients diagnosed with narcolepsy in 2 tertiary centers before and after the introduction of the 2009 A(H1N1)pdm09 vaccine.

Methods:

We started collecting data after the first international report of an association between the A(H1N1)pdm09 vaccine and narcolepsy between January 2010 and December 2016. All patients diagnosed with narcolepsy after 2009 were included and data were collected for 7 years to account for any possible delays in the diagnosis of narcolepsy.

Results:

One-hundred and seventy-three patients with narcolepsy were identified. The majority (144 patients, 83%) had symptom onset before June 2009. Only 29 patients (17%) had symptom onset after 2009. No difference in the annual number of narcolepsy cases was found before and after 2009.

Conclusion:

Based on data obtained from 2 tertiary care sleep disorders center, there was no increase in the number of cases of narcolepsy among Saudis following the introduction of the influenza A(H1N1)pdm09 vaccination.

Current status, and future prospects of pharmaco-epidemiology and post-marketing surveillance in Saudi Arabia: A review of literature

Background

Pharmacoepidemiology is the concept used for evaluating the impact of drugs among a large number of people in the post-marketing phase. The use of this concept makes it increasingly necessary to detect the recurrence of drug-related anomalies that mostly occur through health care professionals or patients themselves. Pharmacoepidemiology is important since it helps to provide the right balance of benefits versus risks of the drug products while remaining an excellent tool to prepare the risk/benefit balance profile.

Aim

The objective of this study is to review and explore the current status and future prospects of pharmacoepidemiology and post-marketing surveillance in Saudi Arabia.

Methods

A literature review has been conducted using keywords such as pharmacoepidemiology’; ‘post-marketing’; ‘surveillance’; ‘Saudi Arabia’; ‘ADRs’; and ‘pharmacovigilance’. The study refines its focus on 13 pharmacoepidemiology and post-marketing surveillance research studies conducted in Saudi Arabia using the databases; Embase, PubMed, EBSCOhost, MEDLINE, and AMED.

Results

Pharmacoepidemiology and post-marketing surveillance creates a body of research in Saudi Arabia, but within a restricted scope. The studies that were reviewed assessed the challenge from various perspectives. Lack of knowledge, post-marketing surveillance, ADR reporting, and increased use of generic products were reported.

Conclusion

The current level of research may be widened and increased through improving the process of ADRs reporting system. More research needs to be conducted based on nation-wide observational studies. Collaboration among medical professionals, academics and industries should continue to establish a more efficient and consistent post-marketing surveillance system.

Patient Participation and the Use of Ehealth Tools for Pharmacoviligance

In recent years, pharmacovigilance has undergone some major changes. First, the patient's active role in identifying and describing adverse drug reactions (ADRs) has gained recognition. Second, pharmacovigilance has increasingly incorporated information and communications technology (ICT). Patients can now upload their own reports of ADRs online. Data on intensive medication monitoring are now collected via the Internet and smartphones. Worldwide collection of AEs using smart phones might become the leading technique in Low and Middle Income Countries where broad mobile phone service can be managed cheaper than Internet communication. At the same time, researchers are exploring the potential for data sharing via online forums and Internet search engines. In particular we synthetize the Pros and cons of the various methods for gathering pharmacovigilance data (i.e., Web-based spontaneous reporting of adverse drug reactions; Intensive drug monitoring studies; Analysis of online forum postings; Use of mobile phone systems to monitor drug effects). This article describes these advances and highlights their respective contributions.

Ongoing challenges in pharmacovigilance

While pharmacovigilance systems have made substantial progress in the past several decades, all pharmacovigilance systems face a common set of ongoing challenges in drug safety surveillance in five principal interrelated areas: engaging the public, collaboration and partnerships, incorporating informatics, adopting a global approach, and assessing the impact of efforts. In broad terms, these challenges are not new. Rather, advances in science and technology, along with more demanding societal expectations, have changed the nature of these challenges and provided new opportunities to move the field forward. Differences in organization and levels of development, as well as regional differences, necessarily imply that a single approach is not suitable for all regions, though sharing of best practices can help each region.