Data sourced from ClinicalTrials.gov (NIH registry) Updated weekly IRB-supervised studies only
Home/CO/Greeley
Updated September 2026 from ClinicalTrials.gov

Paid Clinical Trials in Greeley, CO

Studies commonly pay $75 to $4,500 per completed study

156 clinical trials are currently recruiting participants within 30 miles of Greeley. Listings below come straight from the official NIH registry, alongside the area's top-rated research centers with real Google reviews.

156studies recruiting
9+research centers nearby
3condition categories
Live from the NIH registry

Studies recruiting near Greeley right now

Top 25 of 156 recruiting studies, sorted by proximity — each links to its official registry page

Sustaining Physical Activity After Cancer Exercise Sessions

Exercise Oncology, Physical Activity Behavior N/A Interventional 105 participants sought
Colorado State University — Fort Collins, Colorado (20.2 mi) · Sponsor: Colorado State University
See eligibility & contact on ClinicalTrials.gov (NCT06359210)

Distinguishing Alcohol Intoxication, Cannabis Intoxication and Co-intoxication Using Electroencephalography (EEG)

Cannabis Use, Alcohol Use, Unspecified N/A Interventional 99 participants sought
Colorado State University — Fort Collins, Colorado (20.2 mi) · Sponsor: Colorado State University
See eligibility & contact on ClinicalTrials.gov (NCT06259916)

A Long-term Extension Study of Dazodalibep in Participants With Sjögren's Syndrome (SS)

Sjögren's Syndrome Phase 3 Interventional 844 participants sought
Tekton Research, LLC - 2121 E Harmony Rd - PPDS — Fort Collins, Colorado (20.2 mi) · Sponsor: Amgen
See eligibility & contact on ClinicalTrials.gov (NCT06747949)

Testing the Addition of Stereotactic Radiation Therapy With Immune Therapy for the Treatment of Patients With Unresectable or Metastatic Renal Cell Cancer, SAMURAI Trial

Metastatic Renal Cell Carcinoma, Stage III Renal Cell Cancer AJCC v8 Phase 2 Interventional 240 participants sought
UCHealth Greeley Hospital — Greeley, Colorado (3.3 mi) · Sponsor: NRG Oncology
See eligibility & contact on ClinicalTrials.gov (NCT05327686)

A Study With Combinations of Anti-LAG-3 and Anti-PD-1 Antibodies in Adult Participants With Advanced or Metastatic Melanoma (Harmony Head-to-Head)

Melanoma Phase 3 Interventional 560 participants sought
UCHealth — Fort Collins, Colorado (20.2 mi) · Sponsor: Regeneron Pharmaceuticals
See eligibility & contact on ClinicalTrials.gov (NCT06246916)

A Study to Assess Adverse Events and Effectiveness of Gel Stent (XEN63) Implantation Using Ab Interno and Ab Externo Approaches in Adult Participants With Glaucoma

Primary Open Angle Glaucoma Phase 3 Interventional 130 participants sought
Eye Center of Northern Colorado /ID# 281798 — Fort Collins, Colorado (20.2 mi) · Sponsor: AbbVie
See eligibility & contact on ClinicalTrials.gov (NCT06822738)

Adding an Immunotherapy Drug, MEDI4736 (Durvalumab), to the Usual Chemotherapy Treatment (Paclitaxel, Cyclophosphamide, and Doxorubicin) for Stage II-III Breast Cancer

Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8 Phase 3 Interventional 3,680 participants sought
UCHealth Greeley Hospital — Greeley, Colorado (3.3 mi) · Sponsor: National Cancer Institute (NCI)
See eligibility & contact on ClinicalTrials.gov (NCT06058377)

Influence of the Gut Microbiome on Blueberry Polyphenol Metabolites

Microbiome Analysis, Metabolomics N/A Interventional 125 participants sought
Colorado State University; Food and Nutrition Clinical Research Laboratory; Gifford Building Room 216; 502 West Lake Street, Fort Collins, CO 80523 — Fort Collins, Colorado (20.2 mi) · Sponsor: Colorado State University
See eligibility & contact on ClinicalTrials.gov (NCT07607158)

Comparing Rituximab and Mosunetuzumab Drug Treatments for People With Low Tumor Burden Follicular Lymphoma

Classic Follicular Lymphoma, Follicular Lymphoma With Unusual Cytological Features Phase 3 Interventional 600 participants sought
UCHealth Greeley Hospital — Greeley, Colorado (3.3 mi) · Sponsor: National Cancer Institute (NCI)
See eligibility & contact on ClinicalTrials.gov (NCT06337318)

A Study to Learn About the Study Medicine Called PF-07248144 in Combination With Fulvestrant in People With HR-positive, HER2-negative Advanced or Metastatic Breast Cancer Who Progressed After a Prior Line of Treatment.

Breast Cancer Phase 3 Interventional 400 participants sought
Rocky Mountain Cancer Centers LLP — Longmont, Colorado (24.5 mi) · Sponsor: Pfizer
See eligibility & contact on ClinicalTrials.gov (NCT07062965)

Using Biomarker Tests to Select and Test New, Personalized Treatments for Extensive Stage Small Cell Lung Cancer, PRISM Study

Extensive Stage Lung Small Cell Carcinoma, Lung Small Cell Carcinoma, A Subtype Phase 2 Interventional 900 participants sought
UCHealth Greeley Hospital — Greeley, Colorado (3.3 mi) · Sponsor: SWOG Cancer Research Network
See eligibility & contact on ClinicalTrials.gov (NCT06769126)

Symbiotic-GI-03: A Study to Learn About the Study Medicine Called PF-08634404 in Combination With Chemotherapy in Adult Participants With Metastatic Colorectal Cancer

Intestinal Neoplasms, Gastrointestinal Neoplasms Phase 3 Interventional 800 participants sought
Rocky Mountain Cancer Centers, LLP — Longmont, Colorado (24.5 mi) · Sponsor: Pfizer
See eligibility & contact on ClinicalTrials.gov (NCT07222800)

Immune Checkpoint Inhibitor Toxicity Risk Prediction in Solid Tumors

Malignant Solid Neoplasm N/A Observational 2,062 participants sought
Banner North Colorado Medical Center — Greeley, Colorado (3.3 mi) · Sponsor: SWOG Cancer Research Network
See eligibility & contact on ClinicalTrials.gov (NCT04871542)

BradycArdia paCemaKer With AV Interval Modulation for Blood prEssure treAtmenT

Hypertension, Hypertension, Systolic N/A Interventional 316 participants sought
UCHealth Medical Center of the Rockies — Loveland, Colorado (16.1 mi) · Sponsor: Orchestra BioMed, Inc
See eligibility & contact on ClinicalTrials.gov (NCT06059638)

Efficacy and Safety of IMVT-1402 in Adult Participants With Primary Sjogren's Disease With Moderate to Severe Systemic Disease Activity

Primary Sjögren's Syndrome Phase 2 Interventional 180 participants sought
Site Number - 1014 — Fort Collins, Colorado (20.2 mi) · Sponsor: Immunovant Sciences GmbH
See eligibility & contact on ClinicalTrials.gov (NCT06979531)

Phase 3 Study of RLY-2608 + Fulvestrant vs Capivasertib + Fulvestrant as Treatment for Locally Advanced or Metastatic PIK3CA-mutant HR+/HER2- Breast Cancer

PIK3CA Mutation, HER2- Negative Breast Cancer Phase 3 Interventional 540 participants sought
Rocky Mountain Cancer Centers, LLP — Longmont, Colorado (24.5 mi) · Sponsor: Relay Therapeutics, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT06982521)

Outcomes Following Combined Adductoplasty™ and Lapiplasty® (MTA3D)

Metatarsus Adductus, Hallux Valgus N/A Interventional 80 participants sought
Foot and Ankle Center of the Rockies — Greeley, Colorado (3.3 mi) · Sponsor: Treace Medical Concepts, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT05587569)

A Phase Ⅲ Clinical Study of HLX22 in Combination With Trastuzumab and Chemotherapy for the Treatment of Gastroesophageal Junction and Gastric Cancer

Gastroesophageal-junction Cancer, Monoclonal Antibody Phase 3 Interventional 550 participants sought
Banner MD Anderson Cancer Center — Greeley, Colorado (3.3 mi) · Sponsor: Shanghai Henlius Biotech
See eligibility & contact on ClinicalTrials.gov (NCT06532006)

A Study Investigating Subcutaneously Administered Pozelimab in Combination With Cemdisiran or Cemdisiran Alone in Adult Participants With Geographic Atrophy

Age-related Macular Degeneration (AMD), Geographic Atrophy (GA) Phase 3 Interventional 975 participants sought
Eye care Center of Northern Colorado doing business as Advanced Vision Research Institute — Longmont, Colorado (24.5 mi) · Sponsor: Regeneron Pharmaceuticals
See eligibility & contact on ClinicalTrials.gov (NCT06541704)

A Study of Ocrelizumab Administered Subcutaneously in Participants With Multiple Sclerosis Who Switch From an Approved Anti-CD20 Therapy

Multiple Sclerosis Phase 4 Interventional 100 participants sought
Advanced Neurology of Colorado — Fort Collins, Colorado (20.2 mi) · Sponsor: Genentech, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT07609719)

Testing Docetaxel-Cetuximab or the Addition of an Immunotherapy Drug, Atezolizumab, to the Usual Chemotherapy and Radiation Therapy in High-Risk Head and Neck Cancer

Oropharyngeal p16INK4a-Negative Squamous Cell Carcinoma, Stage III Hypopharyngeal Squamous Cell Carcinoma AJCC v7 Phase 2, Phase 3 Interventional 613 participants sought
Banner North Colorado Medical Center — Greeley, Colorado (3.3 mi) · Sponsor: National Cancer Institute (NCI)
See eligibility & contact on ClinicalTrials.gov (NCT01810913)

Edwards PASCAL Transcatheter Valve Repair System Pivotal Clinical Trial

Tricuspid Regurgitation, Tricuspid Valve Insufficiency N/A Interventional 1,270 participants sought
Medical Center of the Rockies — Loveland, Colorado (16.1 mi) · Sponsor: Edwards Lifesciences
See eligibility & contact on ClinicalTrials.gov (NCT04097145)

A Dose-Escalation and Expansion Study of Tacabrutideg (BGB-16673) in Participants With B-Cell Malignancies

B-cell Malignancy, Marginal Zone Lymphoma Phase 1, Phase 2 Interventional 645 participants sought
Uchealth North — Fort Collins, Colorado (20.2 mi) · Sponsor: BeOne Medicines
See eligibility & contact on ClinicalTrials.gov (NCT05006716)
Actively enrolling

Studies you may be able to join near Greeley

These studies are recruiting through partner research networks. We may be paid a referral fee if you complete their screening form — this never changes what you pay (nothing) or the compensation the study offers you.

See which clinical studies you may qualify for

A partner research network matches volunteers with studies that are currently enrolling in the United States. You answer a few screening questions about your health and where you live; if a study looks like a fit, its team contacts you to confirm eligibility.

Screening is free and takes a few minutes. Eligibility and any compensation are confirmed by the study team, not by this site.

Check your eligibility
Google-rated

Top-rated research centers in Greeley

Dedicated clinical research sites near you — with their real Google ratings, reviews and contact details

All of Us Research Program: Banner Health

★ 5.0
1801 16th Street 3rd Floor North C Wing, Greeley, CO 80631
(970) 810-3590

Tekton Research

★ 4.9
2126 Milestone Dr Unit 101, Fort Collins, CO 80525
(970) 538-1192
"Fast and professional. They were able to brief me on my vaccine trial and all the ins and outs. This was my first trial so I had more questions than…"
— Robert Dietz, 5★

CSU Human Performance Clinical Research Laboratory

★ 5.0
910 Moby Dr, Fort Collins, CO 80523
(970) 491-3847
"Super easy process, everyone was very kind. Genevieve was very helpful and explained everything thoroughly. I very much appreciated the information o…"
— Whitney C, 5★

Alpine Clinical Research Center

★ 5.0
3434 47th St Ste 201, Boulder, CO 80301
(303) 443-7229
"Family mannerisms, upon arrival all are welcomed coming and going. The staff is very skilled with ADLs, and they are quick! They all are thorough wi…"
— Carla Williams, 5★

Tekton Research

★ 4.9
205 S Main St Ste A2, Longmont, CO 80501
(303) 345-6994
"Staff is excellent. They explained everything and made the whole process very easy. Hope to do another study again."
— Tom Manning, 5★

Western States Clinical Research, Inc.

★ 5.0
4251 Kipling St #540, Wheat Ridge, CO 80033
(303) 940-9773
"Cheri, Mary, and Falon are very fun and competent people . They always answer any questions that I might have.and always go out of their way to make …"
— Mike Sewald, 5★

Mountain View Clinical Research

★ 4.3
3955 E Exposition Ave #104, Denver, CO 80209
(720) 941-9363
"Such a great organization with helpful, knowledgeable staff!"
— Windsong Forrest, 5★

Centennial Clinical Trials

469 S Cherry St #101, Denver, CO 80246
(720) 961-1952

Colorado Clinical Research

8753 Yates Dr #110, Westminster, CO 80031
(720) 980-3668

Clinical trials in Greeley: what's recruiting

The Greeley area currently has 156 studies open to new participants, according to the ClinicalTrials.gov registry maintained by the U.S. National Institutes of Health. Among the studies closest to Greeley, the most active research areas are:

  • Cancer & Oncology12 studies
  • Heart & Vascular2 studies
  • Liver & Kidney1 studies

Every listing shows the study phase, the recruiting site and its distance from Greeley, and links to the official registry page where eligibility criteria and study contacts are published. Compensation is set by each sponsor: industry surveys report typical payments of $75 to $4,500 per completed study, with short observational studies at the low end and multi-visit or overnight Phase 1 studies at the high end.

How to enroll in a paid study in Greeley

Start with a study whose condition matches your profile — or a healthy-volunteer study if you have no diagnosis. Contact the research site through the registry page, complete a short phone screen, then attend an in-person screening visit. If you qualify, the study team walks you through the informed consent document, which details every procedure, risk and payment before you commit. You can withdraw at any point, and enrollment is always free.

Greeley participants can also register with the dedicated research centers listed above — many maintain volunteer databases and call when a matching study opens — or sign up for our email alert below to hear when a new study starts recruiting within 30 miles of your ZIP code.

Frequently asked questions

Are clinical trials in Greeley safe?
Every trial on this page is registered on ClinicalTrials.gov, the official NIH registry, and is overseen by an Institutional Review Board (IRB). Before joining you receive an informed consent document detailing procedures, risks and compensation. Participation is voluntary and you can withdraw at any time.
How do I join a study in Greeley, CO?
Pick a study that matches your profile, contact the research site (or apply through the study links on this page), pass a phone pre-screen, then attend an in-person screening visit. If you qualify, you review and sign the informed consent and the study begins. The process typically takes 1-3 weeks.
Is compensation for clinical trials taxable?
In the U.S., clinical trial compensation is generally considered taxable income, and research sites may issue a 1099 form for payments above $600 in a year. Reimbursements for travel or meals are typically treated differently. Consult a tax professional for your situation.
What is the difference between a research center and a hospital study in Greeley?
Dedicated research centers (listed on this page with their Google ratings) run studies as their core business — often healthy-volunteer and vaccine studies with structured compensation. Hospital and university studies tend to focus on patients with specific conditions. Both types are registered and IRB-supervised.
How often do new paid studies open in Greeley?
Constantly — trials open and close enrollment every week. This page is refreshed weekly from the NIH registry. Join the email alert to be notified when a new study opens within 30 miles of Greeley.

Paid clinical trials near Greeley

Other metros within reach

Fort Collins, CO154 Thornton, CO1,600 Denver, CO1,598 Aurora, CO1,565 Lakewood, CO1,598 Colorado Springs, CO206 Grand Junction, CO52 Albuquerque, NM344

By condition

Eligibility and exclusions, condition by condition

Alcoholic Liver Disease in Greeley Bladder Issues Due To Spinal Cord Injury in Greeley All conditions

More of CO

Thornton1,600 Denver1,598 Lakewood1,598 Aurora1,565 Colorado Springs206 Fort Collins154 Grand Junction52

New paid studies open every week

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