Malignant Neoplasm of Unknown Primary — Trials

Malignant Neoplasm of Unknown Primary — Trials · CancerIndex

Clinical trials

Registered studies

14,260 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: 4,163
Recruiting: 2,261
Ph III recruiting: 270
Growth YoY: +12.5%
Industry share: 23%
Top sponsor: National Cancer Institute (NCI)
Termination share: 35.4%

Computedformula ci-trial-intel-v1 · interventional studies · entity + NCIt descendants · hover a figure for its formulaCompare cancers Terminated studies (1,895)

clinicaltrialsPublishedShowing 551–600 of 1,264 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
NCT04340258	Trial Combining Pembrolizumab and Cesium 131 Brachytherapy With Salvage Surgery in HNSCC	active not recruiting	Phase 1 / Phase 2	50	University of CincinnatiOTHER	1	Jun 9, 2026	clinicaltrials
NCT06900543	Chinese HCC Efficacy Evaluation, Response and Safety Study of TareSphere(CHEERS)	active not recruiting	Phase 3	108	Chengdu New Radiomedicine Technology Co. LTD.INDUSTRY	1	Jun 9, 2026