Participant flow18

How many started, completed or left each group, period by period.

1 to 18 of 18

Period	Milestone	Group	Participants
Open-Label Titration	STARTED	OL Tapentadol	459
Open-Label Titration	STARTED	DB Tapentadol ER	0
Open-Label Titration	STARTED	DB Placebo	0
Open-Label Titration	COMPLETED	OL Tapentadol	358
Open-Label Titration	COMPLETED	DB Tapentadol ER	0
Open-Label Titration	COMPLETED	DB Placebo	0
Open-Label Titration	NOT COMPLETED	OL Tapentadol	101
Open-Label Titration	NOT COMPLETED	DB Tapentadol ER	0
Open-Label Titration	NOT COMPLETED	DB Placebo	0
Double-Blind Maintenance	STARTED	OL Tapentadol	0
Double-Blind Maintenance	STARTED	DB Tapentadol ER	166
Double-Blind Maintenance	STARTED	DB Placebo	152
Double-Blind Maintenance	COMPLETED	OL Tapentadol	0
Double-Blind Maintenance	COMPLETED	DB Tapentadol ER	120
Double-Blind Maintenance	COMPLETED	DB Placebo	107
Double-Blind Maintenance	NOT COMPLETED	OL Tapentadol	0
Double-Blind Maintenance	NOT COMPLETED	DB Tapentadol ER	46
Double-Blind Maintenance	NOT COMPLETED	DB Placebo	45

Source ClinicalTrials.govtrials-2026-11-12-0.5.0

Sources 3

ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
ClinicalTrials.govNo license stated
NIH RePORTER's clinical studies and project filesPublic domain

Each source's terms

ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
ClinicalTrials.govnone stated
NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Twenty rows a page, as JSON. No key.

GET https://conductscience.org/api/trials/v1/NCT01041859/flow