A randomised, double-blind and placebo-controlled trial of the effectiveness of progesterone to prevent miscarriage in women with early pregnancy bleeding.

Birmingham, England
Joined June 2016
1/ The PRISM Trial, published in the NEJM, studied the effects of progesterone in women with early pregnancy bleeding. The interpretation has been debated. We clarify our interpretation in these 25 linked tweets.
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PRISM Trial retweeted
A huge step forward in UK miscarriage care following yesterday's parliamentary debate on our @TheLancet series led by @_OliviaBlake #ChangeTheMiscarriageStory
Thank you so so much to everyone for the kind words & messages of support today. Most of all thank you to all of the women who have shared their stories with me & to @tommys @SandsUK @MiscarriageA and all the other amazing groups campaigning to #ChangeTheMiscarriageStory✊❤
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PRISM Trial retweeted
Hear why it is an exciting time to be working in early pregnancy from our Director @arricoomarasamy by watching the video below #miscarriage @RCObsGyn @tommys @aepuuk @ESHRE @ReprodMed
Watch @arricoomarasamy talk about why it is an exciting time to be working in early pregnancy. Hear more from Professor Arri Coomarasamy at 11.55am GMT. #RCOG2021
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Please read this blog from @arricoomarasamy the Director of the @tommys National Centre for Miscarriage Research on research published in @TheLancet last month, and why it’s time to #ChangeTheMiscarriageStory.
In his blog on the @rcog website, @arricoomarasamy, Director of our National Centre for Miscarriage Research, explains our research published in @TheLancet last month, and why it’s time to #ChangeTheMiscarriageStory. You can read the full blog here: rcog.org.uk/en/blog/a-turnin…
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We are pleased to announce the publication of the full PRISM trial report journalslibrary.nihr.ac.uk/h…
We are delighted to announce that the full report for the @Prism_trial has now been published in the NIHR Health Technology Assessment journal @news_ub @unibirm_MDS @IMSR_UoB @UoB_IAHR @BhamCTU @Tommys_baby @arricoomarasamy @aepuuk journalslibrary.nihr.ac.uk/h…
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Fantastic to see the trial results presented @ESHRE international conference today!
⁦@arricoomarasamy⁩ at ⁦⁦⁦@ESHRE⁩ one of the most awaited lectures
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The results from the @PRISM_trial will be presented today at #RCOG2019 by @arricoomarasamy - Capital Suite 10/11/12, 11:30-11:50am
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PRISM Trial retweeted
Great achievement for the Prism team. Thank you for showing some light to such an important issue
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This is an amazing achievement and would never have been possible without the help of all the early pregnancy unit staff across the country, as well as @NIHRresearch CRN nurses and research staff! You are all amazing and changing lives for the better @aepuuk
NEJM hat-trick: Mar, Apr, May 2019: AIMS, TABLET and PRISM trials. Credit to incredible @BhamCTU @IMSR_UoB @UoB_IAHR @NIHR @Tommys_baby @BWC_NHS @unibirm_MDS and @unibirmingham. And thanks to thousands of women who took part selflessly, nurses and doctors and @NEJM.
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Here is the simple meta-analysis of PROMISE and PRISM trials for the livebirth outcome. I see consistency. We will enhance the analysis through Bayesian approaches.
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24/ NEJM and Media discordance: Regarding 3 or more previous miscarriages, we state “this observation requires validation”. This is correct. The validation can be from external evidence (Tweet 19). We were not permitted to add the meta-analysis plot to the NEJM manuscript.
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25/ Finally, please note that the NEJM article is a brief account of our study, and a full study report will soon be published as a NIHR HTA monograph with 111 pages, containing the full results. It will be freely available on the internet for anyone to study the results.
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