Vaccines

CANADIAN PRESS  by  Helen Branswell                       June 19, 2015

TORONTO -- A Canadian company that had been developing an Ebola drug says a clinical trial of the experimental product has been stopped.

Tekmira Pharmaceuticals says the trial was halted because it seemed clear that continuing was not likely to show that the drug works.

The drug is called TKM-Ebola. It was being tested with Ebola patients in Sierra Leone.

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http://www.ctvnews.ca/health/trial-of-canadian-ebola-drug-stopped-no-overall-benefit-shown-1.2430501

REUTERS by Kate Keller and Ben Hirschler                                      June 17, 2015

LONDON --Drugmakers' plans to conduct vast clinical trials to test and hopefully validate the first Ebola vaccines have been thwarted by success in beating back the deadly epidemic in West Africa.

GlaxoSmithKline, Merck and Johnson & Johnson are struggling to recruit volunteers with enough exposure to the disease to prove whether their vaccines are doing the job and preventing infection.

The story might have been very different with just another three or four months of disease spread, underscoring the need to act more quickly to develop vaccines for emerging diseases....

Guinea, where Ebola is still infecting new victims, as "the only hope" for showing efficacy, according to Kieny and to Adrian Hill, director of the Jenner Institute at Britain's Oxford University.

The WHO is overseeing the so-called ring vaccination study in Guinea in which close contacts and family around each new case of Ebola are vaccinated -- either immediately or after a three-week delay -- to see if the shot offers protection.

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PUBLIC BROADCASTING CORP by Caleb Hellerman         June 11, 2015

The quest for an Ebola vaccine has been a journey filled with excruciating delays and mad dashes. The latest outbreak in West Africa caused governments and drug companies to jumpstart research that had languished back when the threat of Ebola wasn’t big enough to sustain a commercial market. (Prior to 2013, the virus had sickened fewer than 2,300 people in known history). Human safety trials of two vaccines began last summer — each being given to a small group of healthy volunteers. When no major side effects were apparent, health officials scrambled to launch larger tests in the countries that were most affected by Ebola.

A volunteer receives an Ebola vaccine in Sierra Leone. Thousands of these voluntary immunizations have been tested so far in the West African nation. Photo by Cameron Hickey.

REUTERS                                             June 10, 2015

ACCRA - Ghana has halted a plan to test two Ebola vaccines in an eastern town after legislators backed local protests against the trials sparked by fears of contamination, officials said on Wednesday.

The country's Food and Drugs Authority said it had begun enlisting volunteers in Hohoe in the Volta region to be injected with drugs made by Johnson & Johnson and Bavarian Nordic as part of a global Ebola vaccine drive.

Youth leaders threatened to boycott the program. "We don't want to be guinea pigs," one local leader told Reuters.

The (health) minister has suspended the trials indefinitely because the people said they don't want it," Health Ministry spokesman Tony Goodman said.

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http://news.yahoo.com/ghana-halts-ebola-vaccine-trial-due-community-protests-230206801--finance.html;_ylt=AwrC1Cj8y3hVjHUAonXQtDMD;_ylu=X3oDMTByOHZyb21tBGNvbG8DYmYxBHBvcwMxBHZ0aWQDBHNlYwNzcg--