Date	Event	Description
28 May 2019	Amended	Contact details updated.
27 March 2019	Feedback has been incorporated	See Feedback 2.
28 April 2017	New search has been performed	This review has been updated to include the results of a new search on 17 January 2017
25 April 2017	New citation required but conclusions have not changed	New search resulting in four additional studies (530 participants). Modified inclusion and exclusion criteria, mainly concerned with newer definitions of neuropathic pain resulting in exclusion of three previously included studies
23 July 2015	Amended	This review is being split; see Published notes
6 July 2015	Feedback has been incorporated	See Feedback section for details.
19 May 2014	Amended	Mistake in Summary of findings table corrected
28 April 2014	Review declared as stable	This review will be assessed for updating in 2019.
17 March 2014	New citation required but conclusions have not changed	Additional studies did not change efficacy or harm estimates in any clinically significant way
17 March 2014	New search has been performed	New searches. New studies added. Minor methodological amendments made, in line with current standards. The original chronic pain review included 14 studies with 1392 participants in 13 reports. The 2011 update involved 29 studies in 29 reports with 3571 participants. In this update we consider 33 studies in 34 reports, involving 4388 participants taking oral gabapentin. We have added seven new studies of oral gabapentin with 1919 participants (Backonja 2011; Harden 2013; Mishra 2012; NCT00475904; Rauck 2013a; Sang 2013; Zhang 2013) and another new publication (Sandercock 2012) that provided results for a study that was already included but did not provide usable data (Sandercock 2009). We also identified a small study, with 170 participants, using an experimental formulation of injected (intrathecal) gabapentin (Rauck 2013b).