Cancer of unknown primary site

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ORPHA:631251C80.0
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19Active trials80Specialists8Treatment centers

Where are you in your journey?

UniteRare data is sourced from FDA.gov, ClinicalTrials.gov, Orphanet, OMIM, and NORD.
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Overview

Also known as:

Orphanet ↗NORD ↗

FDA & Trial Timeline

10 events
Sep 2026Radiographic Stability of Hip Prosthesis Prior to Revision Surgery

Georgios Tsikandylakis, MD PhD

TrialNOT YET RECRUITING
Jun 2026Comparing Dual-mobility Cups Versus Unipolar Cups for Unselected Primary Total Hip Arthroplasty by Direct Anterior Approach

Elsan — NA

TrialNOT YET RECRUITING
Jun 2026Phase II Trial of Lu-177 FAP-2286 in Patients With Carcinoma of Unknown Primary

Peter MacCallum Cancer Centre, Australia — PHASE2

TrialNOT YET RECRUITING
Mar 2026MDR - PMCF Study for RingLoc Bipolar Acetabular Cup and Endo II Femoral Heads

Zimmer Biomet

TrialENROLLING BY INVITATION
Feb 2026Studying the PAGODA Algorithm for Chemotherapy Dose Changes to Prevent Unplanned Treatment Delays

Alliance for Clinical Trials in Oncology — NA

TrialRECRUITING
Feb 202618F-FAPI PET in Cancers of Unknown Primary Site

First Affiliated Hospital of Zhejiang University

TrialNOT YET RECRUITING
Jan 2026Evaluating the Predictive Capability of Transcriptomic Profiling for Identifying the Primary Site of Metastatic Tumors

Fudan University

TrialNOT YET RECRUITING
Jan 2026The NorCUP Trial: Improving Prognosis and Personalized Treatment in Cancer of Unknown Primary (CUP)

Haukeland University Hospital — NA

TrialNOT YET RECRUITING
Dec 2025Olanzapine for Managing Anorexia in Head and Neck Cancer Patients Undergoing Chemoradiation, MACRO Trial

Roswell Park Cancer Institute — PHASE2

TrialRECRUITING
Dec 2025Refractory Advanced diGestive Neuroendocrine Carcinomas Treated With tARlatamab

Grupo Espanol de Tumores Neuroendocrinos — PHASE2

TrialRECRUITING

Data sourced from FDA regulatory filings and ClinicalTrials.gov. Updated periodically.

Treatments

No FDA-approved treatments are currently listed for Cancer of unknown primary site.

19 clinical trialsare actively recruiting — trials can provide access to cutting-edge therapies.

View clinical trials →

Clinical Trials

19 recruitingView all trials with filters →
Phase 32 trials
Chemotherapy With or Without Bevacizumab in Treating Patients With Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma
Phase 3
Active
PI: Athanassios (Ethan) Argiris (ECOG-ACRIN Cancer Research Group) · Sites: Mobile, Alabama; Mobile, Alabama +18 more · Age: 1899 yrs
Testing the Addition of Anti-Cancer Drug, Cetuximab, to Standard of Care Treatment (Pembrolizumab) for Returning or Spreading Head and Neck Cancer After Previous Treatment
Phase 3
Actively Recruiting
PI: Siddharth Sheth (Alliance for Clinical Trials in Oncology) · Sites: Little Rock, Arkansas; Marysville, California +173 more · Age: 1899 yrs
Phase 26 trials
Pembrolizumab in Treating Patients With Rare Tumors That Cannot Be Removed by Surgery or Are Metastatic
Phase 2
Active
PI: Aung Naing (M.D. Anderson Cancer Center) · Sites: Houston, Texas · Age: 1899 yrs
Pembrolizumab in Patients With Poor-Prognosis Carcinoma of Unknown Primary Site (CUP)
Phase 2
Active
PI: Jose Monzon, MD (Arthur J.E. Child Comprehensive Cancer Centre) · Sites: Calgary, Alberta; Edmonton, Alberta +1 more · Age: 1899 yrs
Intensity Modulated Proton or X-Ray Therapy After Surgery for Treatment of Head and Neck Cancer, the HEADLIGHT Study
Phase 2
Actively Recruiting
PI: Scott C. Lester, M.D. (Mayo Clinic in Rochester) · Sites: Phoenix, Arizona; Scottsdale, Arizona +7 more · Age: 1899 yrs
Olanzapine for Managing Anorexia in Head and Neck Cancer Patients Undergoing Chemoradiation, MACRO Trial
Phase 2
Actively Recruiting
PI: Anurag K Singh (Roswell Park Cancer Institute) · Sites: Buffalo, New York · Age: 1899 yrs
Lovastatin and Pembrolizumab for the Treatment of Patients With Recurrent or Metastatic Head and Neck Cancer, LAPP Trial
Phase 2
Actively Recruiting
PI: Nicole C Schmitt, D, FACS (Emory University Hospital/Winship Cancer Institute) · Sites: Atlanta, Georgia; Atlanta, Georgia · Age: 1899 yrs
Cemiplimab, Low-Dose Paclitaxel and Carboplatin for the Treatment of Recurrent/Metastatic Squamous Cell Carcinoma of the Head and Neck
Phase 2
Active
PI: Marcelo R Bonomi, MD (Ohio State University Comprehensive Cancer Center) · Sites: Columbus, Ohio · Age: 1899 yrs
Phase 14 trials
Testing the Addition of M6620 (VX-970, Berzosertib) to Usual Chemotherapy and Radiation for Head and Neck Cancer
Phase 1
Active
PI: Taofeek K Owonikoko (JHU Sidney Kimmel Comprehensive Cancer Center LAO) · Sites: Duarte, California; Sacramento, California +17 more · Age: 1899 yrs
Testing the Addition of Ipatasertib to Usual Chemotherapy and Radiation for Head and Neck Cancer
Phase 1
Actively Recruiting
PI: Malcolm D Mattes (University Health Network Princess Margaret Cancer) · Sites: Tampa, Florida; Chicago, Illinois +16 more · Age: 1899 yrs
TMV Vaccine Therapy Alone and With Pembrolizumab for the Treatment of Recurrent and/or Metastatic Head and Neck Squamous Cell Cancer
Phase 1
Actively Recruiting
PI: Dong M. Shin, MD, FACP, FAAAS (Emory University) · Sites: Atlanta, Georgia; Atlanta, Georgia · Age: 1899 yrs
Combining Immunotherapy Salvage Surgery & IORT Tx Persistent/Recurrent Head & Neck Cancer
Phase 1
Actively Recruiting
PI: Dukagjin M Blakaj, MD, PhD (Ohio State University Comprehensive Cancer Center) · Sites: Columbus, Ohio · Age: 1899 yrs
N/A5 trials
[18F]F-FAPI PET-CT to Identify Carcinoma of Unknown Primary Origin
N/A
Actively Recruiting
PI: Sophie Veldhuijzen van Zanten (Erasmus Medical Center) · Sites: Amsterdam; Groningen +4 more · Age: 1899 yrs
Studying the PAGODA Algorithm for Chemotherapy Dose Changes to Prevent Unplanned Treatment Delays
N/A
Actively Recruiting
PI: Gabriel A. Brooks, MD, MPH (Alliance for Clinical Trials in Oncology) · Sites: Phoenix, Arizona; Fort Smith, Arkansas +269 more · Age: 1899 yrs
Remote Audiometry to Monitor for Treatment-Related Hearing Loss in Patients With H&N SCC Receiving Cisplatin and/or Radiation
N/A
Actively Recruiting
PI: Nicole C Schmitt, MD, FACS (Emory University Hospital/Winship Cancer Institute) · Sites: Atlanta, Georgia · Age: 1899 yrs
Cancer Genetic Testing in Ethnic Populations
N/A
Actively Recruiting
PI: Jewel Samadder, M.D. (Mayo Clinic) · Sites: Scottsdale, Arizona; Jacksonville, Florida · Age: 1899 yrs
TCF-001 TRACK (Target Rare Cancer Knowledge) Study
N/A
Actively Recruiting
PI: Razelle Kurzrock, M.D. (Medical College of Wisconsin) · Sites: Cambridge, Massachusetts · Age: 1899 yrs
Other1 trial
Blood Tests and Questionnaires in Studying Adherence to Preventative Swallowing Exercises in Participants With Metastatic Head and Neck Cancer
Actively Recruiting
PI: Eileen H Shinn (M.D. Anderson Cancer Center) · Sites: Houston, Texas · Age: 1899 yrs

Specialists

Showing 25 of 80View all specialists →
KR
Kanwal Raghav
HOUSTON, TX
Specialist
PI on 1 active trial
JM
Jose Monzon, MD
SPRINGFIELD, MA
Specialist
PI on 1 active trial
SM
Sally Clive, MBChB
Specialist
PI on 1 active trial
DM
Daniel J. Ma, M.D.
Specialist
PI on 1 active trial
MB
Michele Bibas
Specialist
1 Cancer of unknown primary site publication
DL
Dongmei Li
EL PASO, TX
Specialist
1 Cancer of unknown primary site publication
MH
Maria Fransisca Ham
Specialist
1 Cancer of unknown primary site publication
TD
Tadeusz Dorobisz
Specialist
2 Cancer of unknown primary site publications
KD
Karolina Dorobisz
Specialist
2 Cancer of unknown primary site publications
IS
Indrati Suroyo
Specialist
1 Cancer of unknown primary site publication
AS
Alvita Dewi Siswoyo
Specialist
1 Cancer of unknown primary site publication
JB
Joseph A Bellanti
ANNANDALE, VA
Specialist
1 Cancer of unknown primary site publication
JJ
João Neif Antonio Junior
Specialist
1 Cancer of unknown primary site publication
RT
Renaningtyas Tambun
Specialist
1 Cancer of unknown primary site publication
LH
Lie Rebecca Yen Hwei
Specialist
1 Cancer of unknown primary site publication
EY
Erwin Danil Yulian
Specialist
1 Cancer of unknown primary site publication
DP
Daniel D 'Almeida Preto
Specialist
1 Cancer of unknown primary site publication
KP
Katarzyna Pazdro-Zastawny
Specialist
2 Cancer of unknown primary site publications
RP
Rubén Cuesta-Barriuso, PhD
Specialist
PI on 19 active trials
AA
Athanassios (Ethan) Argiris
Mobile, Alabama
Specialist

Rare Disease Specialist

PI on 2 active trials
NS
Niloy J Samadder
SCOTTSDALE, AZ
Specialist
PI on 4 active trials3 Cancer of unknown primary site publications
SP
Stanislaw R. Burzynski, MD, PhD
HOUSTON, TX
Specialist
PI on 29 active trials

Treatment Centers

8 centers
⚗️ Trial Site

Banner University Medical Center - Tucson

📍 Tucson, Arizona

⚗️ Trial Site

University of Alabama at Birmingham Cancer Center

📍 Birmingham, Alabama

⚗️ Trial Site

University of Arkansas for Medical Sciences

📍 Little Rock, Arkansas

⚗️ Trial Site

PCR Oncology

📍 Arroyo Grande, California

⚗️ Trial Site

University of Arizona Cancer Center-North Campus

📍 Tucson, Arizona

⚗️ Trial Site

Mercy Hospital Fort Smith

📍 Fort Smith, Arkansas

⚗️ Trial Site

NEA Baptist Memorial Hospital and Fowler Family Cancer Center - Jonesboro

📍 Jonesboro, Arkansas

⚗️ Trial Site

Fairbanks Memorial Hospital

📍 Fairbanks, Alaska

Travel Grants

No travel grants are currently matched to Cancer of unknown primary site.

Search all travel grants →NORD Financial Assistance ↗

Community

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Latest news about Cancer of unknown primary site

Disease timeline:

New recruiting trial: Effectiveness and Tolerability of Eptinezumab

A new clinical trial is recruiting patients for Cancer of unknown primary site

New recruiting trial: RimegepAnt effectIvenesS and tolErability as Migraine Preventive Treatment

A new clinical trial is recruiting patients for Cancer of unknown primary site

New recruiting trial: Stereotactic Ablative Radiotherapy (SABR) for the Treatment of Patients With Metastatic Cancer, ID-COMET Trial

A new clinical trial is recruiting patients for Cancer of unknown primary site

New recruiting trial: A Randomized Study of ASTX727 With or Without Iadademstat in Advanced Myeloproliferative Neoplasms (MPNs)

A new clinical trial is recruiting patients for Cancer of unknown primary site

New recruiting trial: Gepant treAtments: EffectIveNess and tolERability (GAINER)

A new clinical trial is recruiting patients for Cancer of unknown primary site

New recruiting trial: A Randomized Controlled Study Evaluating Modified Cup Anteversion Placement in Prevention of Postoperative Dislocation in Patients Undergoing Acetabular Tumor Resection and Reconstruction

A new clinical trial is recruiting patients for Cancer of unknown primary site

New recruiting trial: Effect of Lithotomy Position on Optic Nerve Sheath Diameter

A new clinical trial is recruiting patients for Cancer of unknown primary site

New recruiting trial: Dual-mobility Cups Compared to Unipolar Cups on Dislocation and Cost-effectiveness After Primary Total Hip Arthroplasty.

A new clinical trial is recruiting patients for Cancer of unknown primary site

New recruiting trial: Observational Study to Evaluate Long-Term Outcome in Hip Arthroplasty

A new clinical trial is recruiting patients for Cancer of unknown primary site

New recruiting trial: Effectiveness and Acceptability of Insertable Devices for Obstetric Fistula Management

A new clinical trial is recruiting patients for Cancer of unknown primary site

Caregiver Resources

NORD Caregiver Resources

Support, advocacy, and financial assistance for caregivers of rare disease patients.

Mental Health Support

Rare disease caregiving can be isolating. Connect with counseling and peer support.

Family & Caregiver Grants

Financial assistance programs specifically for caregivers of rare disease patients.

Social Security Disability

Learn how rare disease patients may qualify for SSDI/SSI benefits.

Common questions about Cancer of unknown primary site

Are there clinical trials for Cancer of unknown primary site?

Yes — 19 recruiting clinical trials are currently listed for Cancer of unknown primary site on UniteRare. See the clinical trials section on this page for phase, sponsor, and site details sourced from ClinicalTrials.gov.

Which specialists treat Cancer of unknown primary site?

25 specialists and care centers treating Cancer of unknown primary site are listed on UniteRare, sourced from ClinicalTrials.gov principal investigators, published research, and the NPPES NPI registry.