Carcinoma of Unknown Primary — Trials

Carcinoma of Unknown Primary — Trials · CancerIndex

Clinical trials

Registered studies

14,235 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: 267
Growth YoY: +12.6%
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 (1,895)

clinicaltrialsPublishedShowing 701–750 of 5,039 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
NCT05319730	A Study to Evaluate Investigational Agents With or Without Pembrolizumab (MK-3475) in Participants With Advanced Esophageal Cancer Previously Exposed to Programmed Cell Death 1 Protein (PD-1)/ Programmed Cell Death Ligand 1 (PD-L1) Treatment (MK-3475-06B)	recruiting	Phase 1 / Phase 2	230	Merck Sharp & Dohme LLCINDUSTRY	14	Sep 2, 2026	clinicaltrials
NCT05334069	Collecting Blood Samples From Patients With and Without Cancer to Evaluate Tests for Early Cancer Detection	recruiting	—	2,000	Alliance for Clinical Trials in Oncology