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Showing 1–24 of 112 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Polyposis Clear all
Completed Phase 3 Interventional Results available

Efficacy & Safety of OPN-375 Adults With Bilateral Nasal Polyps Using Nasoendoscopic Video

NCT03591068
View directory record Official record
Conditions
Nasal Polyposis
Interventions
Fluticasone Propionate
Drug
Lead sponsor
Optinose US Inc.
Industry
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
Aurora, Colorado • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 2, 2020 · Synced Jul 22, 2026, 5:52 AM EDT
Completed Phase 2 Interventional Results available

Curcumin in Treating Patients With Familial Adenomatous Polyposis

NCT00641147
View directory record Official record
Conditions
Familial Adenomatous Polyposis
Interventions
Curcumin, Laboratory Biomarker Analysis, Placebo
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 85 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 28, 2017 · Synced Jul 22, 2026, 5:52 AM EDT
Completed No phase listed Observational

Hereditary Colorectal and Associated Tumor Registry Study

NCT00633607
View directory record Official record
Conditions
Lynch Syndrome, FAP, Hereditary Diffuse Gastric Cancer, Juvenile Polyposis Syndrome, Peutz-Jeghers Syndrome
Interventions
Research Registry
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
8 Years to 100 Years
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 18, 2018 · Synced Jul 22, 2026, 5:52 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety Study of Benralizumab for Patients With Severe Nasal Polyposis

NCT03401229
View directory record Official record
Conditions
Nasal Polyposis
Interventions
Benralizumab 30 mg SC + Mometasone Furoate, Matching placebo SC + Mometasone Furoate
Biological
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 75 Years
Enrollment
413 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
48
States / cities
Birmingham, Alabama • Fresno, California • Huntington Beach, California + 37 more
Source: ClinicalTrials.gov public record
Updated Oct 11, 2021 · Synced Jul 22, 2026, 5:52 AM EDT
Completed Phase 2 Interventional Results available

Study of Dexpramipexole Chronic Sinusitis With Nasal Polyps and Eosinophilia

NCT02217332
View directory record Official record
Conditions
Chronic Sinusitis With Nasal Polyps and Eosinophilia
Interventions
dexpramipexole
Drug
Lead sponsor
Knopp Biosciences
Industry
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
7
States / cities
Boca Raton, Florida • Baltimore, Maryland • Boston, Massachusetts + 4 more
Source: ClinicalTrials.gov public record
Updated May 17, 2021 · Synced Jul 22, 2026, 5:52 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Secretin (ChiRhoStim) Pancreas Perfusion for Pancreatic Adenocarcinoma

NCT00587132
View directory record Official record
Conditions
Pancreatic Cancer
Interventions
Synthetic Human Secretin
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
35 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 23, 2013 · Synced Jul 22, 2026, 5:52 AM EDT
Active, not recruiting No phase listed Observational

Study Assessing Long-teRm Outcomes of dupiluMAb (DUPIXENT®) Treatment in Adult Patients With Chronic Rhinosinusitis With Nasal Polyposis (CRSwNP)

NCT04959448
View directory record Official record
Conditions
Chronic Rhinosinusitis With Nasal Polyposis
Interventions
DUPIXENT®
Drug
Lead sponsor
Regeneron Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
717 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
48
States / cities
Birmingham, Alabama • Scottsdale, Arizona • La Jolla, California + 42 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Jul 22, 2026, 5:52 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Hereditary Gastric Cancer Syndromes: An Integrated Genomic and Clinicopathologic Study of the Predisposition to Gastric Cancer

NCT03030404
View directory record Official record
Conditions
Stomach Neoplasms, Stomach Cancer, Gastric Adenocarcinoma and Proximal Polyposis of the Stomach (GAPPS), Hereditary Diffuse Gastric Cancer (HDGC), Familial Diffuse Gastric Cancer
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
2 Years and older
Enrollment
733 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Jul 22, 2026, 5:52 AM EDT
Completed Phase 3 Interventional Results available

Study of Efficacy of Fevipiprant in Patients With Nasal Polyposis and Asthma

NCT03681093
View directory record Official record
Conditions
Nasal Polyps
Interventions
Fevipiprant 150 mg, Fevipiprant 450 mg, Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Oct 10, 2021 · Synced Jul 22, 2026, 5:52 AM EDT
Terminated No phase listed Observational Results available

Observational Familial Adenomatous Polyposis Registry Study In Patients Receiving Celecoxib Compared to Control Patients

NCT00151476
View directory record Official record
Conditions
Familial Adenomatous Polyposis (FAP)
Interventions
Celecoxib, Routine Medical Care
Drug · Other
Lead sponsor
Pfizer
Industry
Eligibility
12 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 3, 2024 · Synced Jul 22, 2026, 5:52 AM EDT
Completed Phase 2 Interventional Results available

Molecular Targeting of 15-Lipoxygenase-1 (15-LOX-1) for Apoptosis Induction in Human Colorectal Cancers

NCT00503035
View directory record Official record
Conditions
Familial Adenomatous Polyposis
Interventions
Celecoxib, Colonoscopy Biopsy
Drug · Procedure
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
16 Years and older
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2021
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 12, 2023 · Synced Jul 22, 2026, 5:52 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Non-Surgical Management of Attenuated and Deleterious (Classical) Familial Adenomatous Polyposis: A Long-term Surveillance Program

NCT02747862
View directory record Official record
Conditions
Attenuated Familial Adenomatous Polyposis, Deleterious Familial Adenomatous Polyposis
Interventions
Chart Review
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Not listed
Enrollment
1,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 1, 2022 · Synced Jul 22, 2026, 5:52 AM EDT
Recruiting Phase 1Phase 2 Interventional

Evaluate REC-4881 in Participants With Familial Adenomatous Polyposis (FAP)

NCT05552755
View directory record Official record
Conditions
Familial Adenomatous Polyposis
Interventions
REC-4881, Placebo
Drug
Lead sponsor
Recursion Pharmaceuticals Inc.
Industry
Eligibility
18 Years and older
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
17
States / cities
Scottsdale, Arizona • Tucson, Arizona • San Diego, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Jul 22, 2026, 5:52 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

The Pancreas Interception Center (PIC) for Early Detection, Prevention, and Novel Therapeutics

NCT05692596
View directory record Official record
Conditions
Pancreatic Ductal Adenocarcinoma, Pancreatic Cyst, Chronic Pancreatitis, Fatty Pancreas, Genetic Pancreatic Cancer, Genetic Pancreatitis, BRCA Mutation, Lynch Syndrome, FAP, Familial Atypical Multiple Mole-Melanoma, PALB2 Gene Mutation, Peutz-Jeghers Syndrome, Ataxia Telangiectasia
Interventions
Data collection
Other
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
317 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Mar 31, 2026 · Synced Jul 22, 2026, 5:52 AM EDT
Completed No phase listed Observational

Screening for Gynecologic Cancers in Hereditary Nonpolyposis Colorectal Cancer (HNPCC) Patients

NCT00508846
View directory record Official record
Conditions
Colon Cancer
Interventions
Questionnaire
Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
25 Years and older · Female only
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 10, 2016 · Synced Jul 22, 2026, 5:52 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety Study of Intranasal Administration of 100, 200, and 400 μg of Fluticasone Propionate Using a Novel Bi-directional Device

NCT01624662
View directory record Official record
Conditions
Bilateral Nasal Polyposis
Interventions
Fluticasone propionate
Drug
Lead sponsor
Optinose US Inc.
Industry
Eligibility
18 Years and older
Enrollment
323 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
10
States / cities
Stockton, California • Centennial, Colorado • Louisville, Kentucky + 7 more
Source: ClinicalTrials.gov public record
Updated Dec 4, 2018 · Synced Jul 22, 2026, 5:52 AM EDT
Active, not recruiting Phase 3 Interventional

OPN-375 Efficacy and Safety in Adolescents With Bilateral Nasal Polyps

NCT03747458
View directory record Official record
Conditions
Bilateral Nasal Polyposis
Interventions
OPN-375
Drug
Lead sponsor
Optinose US Inc.
Industry
Eligibility
12 Years to 17 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
22
States / cities
Gilbert, Arizona • Bakersfield, California • Fresno, California + 18 more
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Jul 22, 2026, 5:52 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Steroid-Releasing S8 Sinus Implant for Recurrent Nasal Polyps

NCT01732536
View directory record Official record
Conditions
Chronic Sinusitis, Nasal Polyps
Interventions
S8 Sinus Implant, Sham procedure, Mometasone furoate nasal spray
Drug · Procedure
Lead sponsor
Intersect ENT
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
19
States / cities
Atherton, California • Los Angeles, California • Sacramento, California + 16 more
Source: ClinicalTrials.gov public record
Updated Jul 19, 2018 · Synced Jul 22, 2026, 5:52 AM EDT
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

Dupixent Study for Alternate Administration

NCT06750471
View directory record Official record
Conditions
Nasal Polyps, Sinusitis, Chronic Disease
Interventions
Dupilumab
Biological
Lead sponsor
Madigan Army Medical Center
Federal
Eligibility
18 Years to 100 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Jan 16, 2025 · Synced Jul 22, 2026, 5:52 AM EDT
Active, not recruiting Phase 2 Interventional

Trial of ERapa to Prevent Progression in Familial Adenomatous Polyposis Patients Under Active Surveillance

NCT04230499
View directory record Official record
Conditions
Familial Adenomatous Polyposis
Interventions
Encapsulated Rapamycin (eRapa)
Drug
Lead sponsor
Rapamycin Holdings Inc.
Industry
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
4
States / cities
Ann Arbor, Michigan • Cleveland, Ohio • Columbus, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 8, 2025 · Synced Jul 22, 2026, 5:52 AM EDT
Recruiting No phase listed Observational

Familial Investigations of Childhood Cancer Predisposition

NCT03050268
View directory record Official record
Conditions
Acute Leukemia, Adenomatous Polyposis, Adrenocortical Carcinoma, AML, BAP1 Tumor Predisposition Syndrome, Carney Complex, Choroid Plexus Carcinoma, Constitutional Mismatch Repair Deficiency Syndrome, Diamond-Blackfan Anemia, DICER1 Syndrome, Dyskeratosis Congenita, Emberger Syndrome, Familial Acute Myeloid Leukemia, Familial Adenomatous Polyposis, Fanconi Anemia, Familial Cancer, Familial Wilms Tumor, Familial Neuroblastoma, GIST, Hereditary Breast and Ovarian Cancer, Hereditary Paraganglioma-Pheochromocytoma Syndrome, Hodgkin Lymphoma, Juvenile Polyposis, Li-Fraumeni Syndrome, Lynch Syndrome, MDS, Melanoma Syndrome, Multiple Endocrine Neoplasia Type 1, Multiple Endocrine Neoplasia Type 2, Neuroblastoma, Neurofibromatosis Type 1, Neurofibromatosis Type II, Nevoid Basal Cell Carcinoma Syndrome, Non Hodgkin Lymphoma, Noonan Syndrome and Other Rasopathy, Overgrowth Syndromes, Pancreatic Cancer, Peutz-Jeghers Syndrome, Pheochromocytoma/Paraganglioma, PTEN Hamartoma Tumor Syndrome, Retinoblastoma, Rhabdoid Tumor Predisposition Syndrome, Rhabdomyosarcoma, Rothmund-Thomson Syndrome, Tuberous Sclerosis, Von Hippel-Lindau Disease
Interventions
Not listed
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
Not listed
Enrollment
1,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2037
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Jul 22, 2026, 5:52 AM EDT
Completed Phase 1 Interventional

A Study of JNJ-64251330 in Participants With Familial Adenomatous Polyposis

NCT05014360
View directory record Official record
Conditions
Adenomatous Polyposis Coli
Interventions
JNJ-64251330
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
5
States / cities
Duarte, California • Miami, Florida • Boston, Massachusetts + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 1, 2023 · Synced Jul 22, 2026, 5:52 AM EDT
Not listed No phase listed Observational

Pancreatic Cancer Early Detection Program

NCT02206360
View directory record Official record
Conditions
Pancreatic Cancer, Pancreas Cancer, Pancreatic Adenocarcinoma, Familial Pancreatic Cancer, BRCA 1/2, HNPCC, Lynch Syndrome, Hereditary Pancreatitis, FAMMM, Familial Atypical Multiple Mole Melanoma, Peutz Jeghers Syndrome
Interventions
Endoscopic Ultrasound, Magnetic Resonance Imaging (MRI)
Procedure
Lead sponsor
White Plains Hospital
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2024
U.S. locations
1
States / cities
White Plains, New York
Source: ClinicalTrials.gov public record
Updated May 23, 2024 · Synced Jul 22, 2026, 5:52 AM EDT
Completed Phase 2 Interventional

Sirolimus for Cowden Syndrome With Colon Polyposis

NCT04094675
View directory record Official record
Conditions
PTEN Gene Mutation, PTEN Hamartoma Tumor Syndrome, PTEN Hamartoma Syndrome, Cowden Syndrome, Bannayan Syndrome, Bannayan Zonana Syndrome, Polyposis
Interventions
Sirolimus
Drug
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 80 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 9, 2025 · Synced Jul 22, 2026, 5:52 AM EDT