Carcinoma of Unknown Primary — Trials

Carcinoma of Unknown Primary — Trials · CancerIndex

Clinical trials

Registered studies

14,232 studies whose conditions map to this entity or one of its descendants. Status and phase are as posted on ClinicalTrials.gov. 50 studies per page.

Active: 4,156
Recruiting: 2,259
Ph III recruiting: 269
Growth YoY: +12.3%
Industry share: 23%
Top sponsor: National Cancer Institute (NCI)
Termination share: 35.5%

Computedformula ci-trial-intel-v1 · interventional studies · entity + NCIt descendants · hover a figure for its formulaCompare cancers Terminated studies (1,893)

clinicaltrialsPublishedShowing 251–300 of 614 studies matching the filters · status and phase as posted by the registrant; each row links to the study record.

NCT	Title	Status	Phase	Enrollment (n)	Sponsor	Countries	Last update	Source
NCT02945566	Can we Save the Rectum by Watchful Waiting or TransAnal Surgery Following (Chemo)Radiotherapy Versus Total Mesorectal Excision for Early REctal Cancer?(STAR-TREC)	active not recruiting	Phase 2 / Phase 3	380	University of BirminghamOTHER	5	Jun 29, 2026	clinicaltrials
NCT06008158	Evaluation of a Once Per Day Regimen of Accelerated Partial Breast Irradiation for Improved Breast Appearance in Pts w/Low Risk, Hormone Responsive Brst Ca	active not recruiting	Phase 2	48	City of Hope Medical CenterOTHER