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 501–550 of 4,807 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
NCT03829722	Radiotherapy, Carboplatin/Paclitaxel and Nivolumab for High Risk HPV-related Head and Neck Cancer	completed	Phase 2	26	University of Michigan Rogel Cancer CenterOTHER	1	Jan 22, 2026	clinicaltrials
NCT03978689	A Phase 1 Study in Patients With HPV16+ Recurrent/ Metastatic Head and Neck Squamous Cell Carcinoma	completed	Phase 1	80	Cue BiopharmaINDUSTRY	1	Jan 22, 2026	clinicaltrials