Carcinoma of Unknown Primary — Trials

Carcinoma of Unknown Primary — Trials · CancerIndex

Clinical trials

Registered studies

14,225 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: 4,151
Recruiting: 2,258
Ph III recruiting: 267
Growth YoY: +13.6%
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 1–13 of 13 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
NCT04402788	Testing the Addition of Radiation Therapy to the Usual Immune Therapy Treatment (Atezolizumab) for Extensive Stage Small Cell Lung Cancer, The RAPTOR Trial	suspended	Phase 2 / Phase 3	138	National Cancer Institute (NCI)NIH	1	Sep 29, 2026	clinicaltrials
NCT03077841	Hypofractionated Partial Breast Irradiation in Treating Patients With Early Stage Breast Cancer	suspended	Phase 2 / Phase 3	928	M.D. Anderson Cancer CenterOTHER	1	Sep 14, 2026