Tainted syrup medicine imported from India was the cause of an outbreak of kidney failure that killed more than sixty children in the West African nation of Gambia last year, according to a report by a team of international experts seen by Bloomberg.
The report, submitted to the Gambian health ministry earlier this year and not yet made public, is the most definitive statement yet on the cause of the episode.
It contradicts the official position of Indian authorities, who insist that the country’s products weren’t to blame. A director for the Gambian ministry of health didn’t respond to calls and an emailed request for comment.
Although the committee was able to establish that a child drank the contaminated medicine from an Indian drugmaker, Maiden Pharmaceuticals Ltd., in only 22 deaths from so-called acute kidney injury, or AKI, it said that symptoms in 30 others were consistent with the poison’s effects and no other cause could be found. It lacked enough information on 13 more cases.
“The outbreak of AKI in children in the Gambia is attributable to medicines contaminated with DEG/EG,” the committee of experts concluded, referring to the two contaminants, diethylene glycol and ethylene glycol.
Last year’s outbreak sparked concerns about the quality of generic medicine from India, an export powerhouse that calls itself the “pharmacy of the world.” Those concerns intensified this year when exported syrups from two other Indian manufacturers were found to be tainted in the same way, leading in one case to about 20 deaths in Uzbekistan.
“We have made our stand clear that as per our testing, the product had no issue,” said Rajeev Raghuvanshi, the Indian drug controller general, in a text message to Bloomberg. He referred further questions to the health ministry, which didn’t respond to requests for comment. A representative of Maiden also didn’t respond to inquiries.
India’s central government this week imposed a new regulation requiring cough syrup to be tested by a government lab before it can be exported.
Products from Maiden, a small New Delhi firm, fell under suspicion in Gambia last September, when health officials investigating the outbreak arranged tests of several drugs given to children prior to their deaths.
Three labs in three different countries would eventually confirm the presence of the contaminants in Maiden products, the committee said in its report.
The World Health Organization issued a public alert in October and Gambia recalled the drugs.
“After the poisonous medicines were withdrawn, there were no further cases,” said Kalle Hoppu, one of the committee members, in an email to Bloomberg. He called that “a very definitive sign that this outbreak was caused by these medicines.” Hoppu is a former director of the Poison Information Center at Helsinki University Hospital in Finland.
Indian authorities have defended the drugs. In December, the Indian drug controller general at the time, V.G. Somani, told the WHO that his organization’s own tests of Maiden drugs found no contamination.
He went on to accuse the agency of acting on flimsy evidence and having “adversely impacted the image of Indian pharmaceutical products across the globe.” As recently as March, the Indian government said in a statement that the drugs weren’t tainted and didn’t kill anyone.
Earlier reports by a Gambian parliamentary committee and by the U.S. Centers for Disease Control and Prevention both pointed to the Maiden drugs as the most plausible explanation for the outbreak. But the report by the 11-member expert committee was the first charged specifically with establishing the cause.
The panel was set up by Gambia’s health ministry and consisted of five clinicians from local hospitals, two WHO officials, and four consultants from Senegal, Finland, and the UK. It was chaired by Abdou Niang, a nephrologist and professor at Cheikh Anta Diop University in Senegal. Members met for a week in December, and Hoppu said the report was submitted to the health ministry sometime around February. It’s unclear why the report has not been made public.
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At the time the committee convened in December, Gambian authorities had logged 70 deaths of children suffering from AKI. Of those, the committee couldn’t get detailed information on 13, and it concluded that one death wasn’t consistent with AKI. That left 56 deaths that it examined in detail. The children in this group were about two years old on average, the committee report said.
In only four of the 56 cases did the committee find a possible alternative or contributing cause, such as Covid-19 or severe malaria. That left the 22 it tied to consumption of Maiden drugs, and 30 others where consumption of the drugs wasn’t established but the symptoms were consistent with exposure to the contaminants and no alternative cause was found. The report noted that parents can’t always recall the brand of medications they give their children.
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