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 301–350 of 2,266 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
NCT06635980	Hypofractionated Radiotherapy Before or After Breast Surgery for Treatment of Patients With Non-Metastatic Breast Cancer	recruiting	Phase 2	120	Mayo ClinicOTHER	1	Sep 3, 2026	clinicaltrials
NCT06649331	Platform Study of ADC Rechallenge in ADC-treated Metastatic Breast Cancer	recruiting	Phase 2	160	Fudan UniversityOTHER	1	Sep 3, 2026	clinicaltrials
NCT06727565