Abstract:
Abstract
Background
The third Sustainable Development Goal (SDG3.1) of the United Nations (UN) urge all countries
to reduce the maternal mortality ratio at less than 70 maternal deaths per 100,000 live births by
2030. Oxytocin and misoprostol are used as the first and second choices, respectively, in the
prevention and management of post-partum hemorrhage, which is the leading cause of maternal
deaths. The SDG3.1 will not be achieved if full access to quality assured oxytocin and misoprostol
is not assured. The main objective of this PhD thesis entitled “A survey on the quality of oxytocin
AND misoprostol as well as prices, availability and affordability of medicines in Rwanda” was to
measure the accessibility to 18 medicines including oxytocin and misoprostol, and investigate on
the quality and stability of oxytocin and misoprostol used in health facilities of Rwanda.
Methods
Data on prices for 18 medicines were collected and analyzed using a standardized method
developed by the Department of Medicine Policy and Standards of the WHO (WHO-DMPS) in
partnership with the Health Action International (HAI), as updated in 2016. Data on storage
conditions and samples of oxytocin and misoprostol were collected from 40 selected (simple
random) health facilities and six wholesalers and government stores of Rwanda. Stability testing
and quantitative analysis were performed according to the 2016 United States Pharmacopoeia
(USP) for oxytocin injectables and the 2017 International Pharmacopoeia for misoprostol tablets.
Results
In Rwanda, the 18 surveyed medicines were affordable but poorly available in both the public and
the faith- based sectors. Prices for generic medicines in the public and faith-based health facilities
were low, but these prices were very high in the private pharmacies. The government procurement
agency was found with low prices, compared to the international prices, with the MPR less than
one for 16 out of 18 surveyed medicines. Affordability of medicines was better in the public and
faith-based sectors than in the private sector. Oxytocin, the first choice in the prevention and
management of post-partum hemorrhage, was poorly available in the private sector and its
availability was less than the target of 80 % in the public and faith-based sectors.
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Storage of oxytocin and misoprostol was found to follow the manufacturers’ recommendations.
However, quality problems were identified on the 9/57 samples of oxytocin and 10/25 samples of
misoprostol collected from the Rwandan health facilities for the survey on quality. One brand of
oxytocin showed contents in oxytocin exceeding the acceptable limit and an undeclared
preservative. Two brands of misoprostol contained less than 50 % of the declared content in
misoprostol and they released less then 50% of the declared content in misoprostol during the
dissolution test. These brands were neither WHO-prequalified nor manufactured in countries with
Stringent Regulatory Authority (SRA).
Chlorbutanol showed a high stabilizing effect on oxytocin preparations. All four samples/brands
of oxytocin passed the accelerated stability testing according to the International Coucil on
Harmonization (ICH) in partnership with the WHO. Damage to the primary packaging resulted in
a decrease of 52.5 % of the content in misoprostol (from 100.7% to 48.2 %) after a 6 months
storage at 40°C +/- 2°C and 75% +/- 5% RH, but no significant effect was found after a 6 months
storage at 25°C +/- 2°C and 60% +/- 5% RH.
Conclusion
In Rwanda, important steps to ensure accessibility to medicines have been made, but more efforts
are needed to ensure full access to quality assured oxytocin and misoprostol to expect the
achievement of the SDG3.1 and reach the target of maternal mortality ratio by 2030.