Table 5.

Examples of Changes Made Between Trial Registration and Publication of Findings

Primary OutcomesSecondary Outcomes
Study DescriptionRegistryPublicationRegistryPublicationNotes
ER=extended release; 5-FU=5-fluorouracil; NICU = neonatal intensive care unit.
Kaplan et al9,101. Patient perception of treatment benefit at week 121. Reported24 outcomes grouped in several domains7 outcomes, 2 not mentioned as out- comes in registrySeveral clinically important secondary outcome measures listed in the registry (continence, overactive bladder, erectile function) are not mentioned in the publication
Safety and efficacy of tolterodine ER, tamsulosin, or the combination, against placebo in men with lower urinary symptoms2. Treatment benefit, treatment satisfaction, and willingness to continue treatment questions at week 122. Not reported as a primary outcome but some measures reported as secondary outcomes
Bosset et al11,121. Disease-free survival1. Not reportedNone listedNone listedDisease-free and progression-free survival both discussed in the publication, but not as outcomes
Treatment of rectal cancer with radio- therapy and 5-FU2. Overall survival2. Reported
Michalowicz et al13,141. Gestational age at birth1. ReportedNone listed1. Birth weightDemotion of 1 primary outcome and addition of multiple secondary outcomes
Effect of treatment of periodontal disease on the risk of pregnancy complications2. Birth weight2. Reported as a secondary outcome2. Infants small for gestational age
3. Apgar scores
4. Admissions to NICU