Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My Custom Filters

Publication date

Text availability

Article attribute

Article type

Additional filters

Article Language

Species

Sex

Age

Other

Search Results

31 results

Filters applied: . Clear all
Results are displayed in a computed author sort order. The Publication Date timeline is not available.
Page 1
A meta-research study of randomized controlled trials found infrequent and delayed availability of protocols.
Schönenberger CM, Griessbach A, Taji Heravi A, Gryaznov D, Gloy VL, Lohner S, Klatte K, Ghosh N, Lee H, Mansouri A, Marian IR, Saccilotto R, Nury E, Busse JW, von Niederhäusern B, Mertz D, Blümle A, Odutayo A, Hopewell S, Speich B, Briel M. Schönenberger CM, et al. Among authors: gryaznov d. J Clin Epidemiol. 2022 Sep;149:45-52. doi: 10.1016/j.jclinepi.2022.05.014. Epub 2022 May 30. J Clin Epidemiol. 2022. PMID: 35654268 Free article.
Reporting quality of trial protocols improved for non-regulated interventions but not regulated interventions: A repeated cross-sectional study.
Lohner S, Gryaznov D, von Niederhäusern B, Speich B, Kasenda B, Ojeda-Ruiz E, Schandelmaier S, Mertz D, Odutayo A, Tomonaga Y, Amstutz A, Pauli-Magnus C, Gloy V, Bischoff K, Wollmann K, Rehner L, Meerpohl JJ, Nordmann A, Klatte K, Ghosh N, Heravi AT, Wong J, Chow N, Hong PJ, McCord K, Sricharoenchai S, Busse JW, Agarwal A, Saccilotto R, Schwenkglenks M, Moffa G, Hemkens LG, Hopewell S, von Elm E, Blümle A, Briel M. Lohner S, et al. Among authors: gryaznov d. J Clin Epidemiol. 2021 Nov;139:340-349. doi: 10.1016/j.jclinepi.2021.05.011. Epub 2021 May 23. J Clin Epidemiol. 2021. PMID: 34029678 Free article.
Rationale and design of repeated cross-sectional studies to evaluate the reporting quality of trial protocols: the Adherence to SPIrit REcommendations (ASPIRE) study and associated projects.
Gryaznov D, Odutayo A, von Niederhäusern B, Speich B, Kasenda B, Ojeda-Ruiz E, Blümle A, Schandelmaier S, Mertz D, Tomonaga Y, Amstutz A, Pauli-Magnus C, Gloy V, Bischoff K, Wollmann K, Rehner L, Lohner S, Meerpohl JJ, Nordmann A, Klatte K, Ghosh N, Heravi AT, Wong J, Chow N, Hong PJ, Cord KM, Sricharoenchai S, Busse JW, Agarwal A, Saccilotto R, Schwenkglenks M, Moffa G, Hemkens LG, Hopewell S, von Elm E, Briel M. Gryaznov D, et al. Trials. 2020 Oct 28;21(1):896. doi: 10.1186/s13063-020-04808-y. Trials. 2020. PMID: 33115541 Free PMC article.
Nonregistration, discontinuation, and nonpublication of randomized trials: A repeated metaresearch analysis.
Speich B, Gryaznov D, Busse JW, Gloy VL, Lohner S, Klatte K, Taji Heravi A, Ghosh N, Lee H, Mansouri A, Marian IR, Saccilotto R, Nury E, Kasenda B, Ojeda-Ruiz E, Schandelmaier S, Tomonaga Y, Amstutz A, Pauli-Magnus C, Bischoff K, Wollmann K, Rehner L, Meerpohl JJ, Nordmann A, Wong J, Chow N, Hong PJ, Mc Cord-De Iaco K, Sricharoenchai S, Agarwal A, Schwenkglenks M, Hemkens LG, von Elm E, Copsey B, Griessbach AN, Schönenberger C, Mertz D, Blümle A, von Niederhäusern B, Hopewell S, Odutayo A, Briel M. Speich B, et al. Among authors: gryaznov d. PLoS Med. 2022 Apr 27;19(4):e1003980. doi: 10.1371/journal.pmed.1003980. eCollection 2022 Apr. PLoS Med. 2022. PMID: 35476675 Free PMC article.
Reporting quality of clinical trial protocols: a repeated cross-sectional study about the Adherence to SPIrit Recommendations in Switzerland, CAnada and GErmany (ASPIRE-SCAGE).
Gryaznov D, von Niederhäusern B, Speich B, Kasenda B, Ojeda-Ruiz E, Blümle A, Schandelmaier S, Mertz D, Odutayo A, Tomonaga Y, Amstutz A, Pauli-Magnus C, Gloy V, Lohner S, Bischoff K, Wollmann K, Rehner L, Meerpohl JJ, Nordmann A, Klatte K, Ghosh N, Taji Heravi A, Wong J, Chow N, Hong P, McCord-De Iaco KA, Sricharoenchai S, Busse JW, Agarwal A, Saccilotto R, Schwenkglenks M, Moffa G, Hemkens L, Hopewell S, Von Elm E, Briel M. Gryaznov D, et al. BMJ Open. 2022 May 24;12(5):e053417. doi: 10.1136/bmjopen-2021-053417. BMJ Open. 2022. PMID: 35613804 Free PMC article.
Evaluation of Planned Subgroup Analysis in Protocols of Randomized Clinical Trials.
Taji Heravi A, Gryaznov D, Schandelmaier S, Kasenda B, Briel M; Adherence to SPIRIT Recommendations (ASPIRE) Study Group. Taji Heravi A, et al. Among authors: gryaznov d. JAMA Netw Open. 2021 Oct 1;4(10):e2131503. doi: 10.1001/jamanetworkopen.2021.31503. JAMA Netw Open. 2021. PMID: 34705015 Free PMC article.
Reliability of Trial Information Across Registries for Trials With Multiple Registrations: A Systematic Review.
Speich B, Gloy VL, Klatte K, Gryaznov D, Taji Heravi A, Ghosh N, Marian IR, Lee H, Mansouri A, Lohner S, Saccilotto R, Nury E, Chan AW, Blümle A, Odutayo A, Hopewell S, Briel M; Adherence to Spirit Recommendations (ASPIRE) Study Group. Speich B, et al. Among authors: gryaznov d. JAMA Netw Open. 2021 Nov 1;4(11):e2128898. doi: 10.1001/jamanetworkopen.2021.28898. JAMA Netw Open. 2021. PMID: 34724557 Free PMC article.
31 results