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Showing 1–24 of 114 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Phlebotomy Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Can Virtual Reality Reduce Pain and Anxiety During Blood Draw

NCT04449341
View directory record Official record
Conditions
Procedural Anxiety, Procedural Pain
Interventions
Oculus Go headset with Ocean Rift application
Device
Lead sponsor
C.R.Darnall Army Medical Center
Federal
Eligibility
18 Years to 50 Years
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Fort Hood, Texas
Source: ClinicalTrials.gov public record
Updated Jul 12, 2021 · Synced Jul 22, 2026, 4:23 AM EDT
Not listed Phase 2 Interventional

KRT-232 Compared to Ruxolitinib in Patients With Phlebotomy-Dependent Polycythemia Vera

NCT03669965
View directory record Official record
Conditions
Polycythemia Vera
Interventions
KRT-232, Ruxolitinib
Drug
Lead sponsor
Kartos Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
5
States / cities
Birmingham, Alabama • Los Angeles, California • St Louis, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2020 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Randomized Control Trial of a Topical Anesthetic to Evaluate Pain and Anxiety During Venipuncture

NCT00676364
View directory record Official record
Conditions
Pain, Anxiety
Interventions
4% lidocaine topical anesthetic cream, Placebo cream
Drug
Lead sponsor
Jenny Boucher, PharmD
Other
Eligibility
5 Years to 18 Years
Enrollment
114 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2008
U.S. locations
1
States / cities
Allentown, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 24, 2012 · Synced Jul 22, 2026, 4:23 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Serum Biomarkers to Characterize the Effects of Therapy on Ovarian Reserve in Premenopausal Women With Early-stage Breast Cancer or BRCA Mutations

NCT00823654
View directory record Official record
Conditions
Breast Cancer
Interventions
Blood draw and questionnaires
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
609 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2027
U.S. locations
8
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2025 · Synced Jul 22, 2026, 4:23 AM EDT
Completed No phase listed Observational

Feasibility of Obtaining and Characterizing Circulating Tumorigenic Cells in Patients With Pancreatic Adenocarcinoma

NCT01474564
View directory record Official record
Conditions
Pancreatic Adenocarcinoma
Interventions
Blood draw
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2019
U.S. locations
5
States / cities
Commack, New York • Harrison, New York • New York, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2019 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Phlebotomy Study of Testosterone Undecanoate

NCT02670343
View directory record Official record
Conditions
Hypogonadism
Interventions
Oral Testosterone Undecanoate
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Mar 8, 2018 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Not applicable Interventional Results available

Vapocoolant (Pain Ease) Use for Venipuncture

NCT01712776
View directory record Official record
Conditions
Pain
Interventions
Vapocoolant (Pain Ease), Nature's Tears Sterile Water
Device
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 28, 2025 · Synced Jul 22, 2026, 4:23 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Eccentric Muscle Training, Stimulation, and Biomarkers in SCI

NCT05337982
View directory record Official record
Conditions
Spinal Cord Injuries, Healthy
Interventions
Downhill Eccentric Treadmill Training with Electrical Stimulation
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 85 Years
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 22, 2025 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Tapping in the Venous Dilatation for Peripheral IV Access

NCT05265481
View directory record Official record
Conditions
Catheterization, Peripheral, Venous Dilatation
Interventions
Tourniquet, Manual Tapping, Device tapping
Device
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 2, 2022 · Synced Jul 22, 2026, 4:23 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Screening of Healthy Volunteers for Investigational Antimalarial Drugs, Malaria Vaccines, and Controlled Human Malaria Challenge

NCT02639299
View directory record Official record
Conditions
Malaria
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
1,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2030
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 7, 2026 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Phase 3 Interventional

Efficacy and Safety of ALGRX 3268 in Children Undergoing Minor Needle-Stick Procedures.

NCT00146185
View directory record Official record
Conditions
Pain
Interventions
ALGRX 3268
Drug
Lead sponsor
AlgoRx Pharmaceuticals
Industry
Eligibility
3 Years to 18 Years
Enrollment
504 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Nov 15, 2005 · Synced Jul 22, 2026, 4:23 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Gene Expression Profiles in Multiple Sclerosis (MS)

NCT00704834
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Blood Draw
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 70 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2017
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Feb 20, 2020 · Synced Jul 22, 2026, 4:23 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Blood Collection Sub-Study of Exact Sciences Protocol 2019-01: "Clinical Validation of an Optimized Multi-Target Stool DNA (Mt-sDNA 2.0) Test, For Colorectal Cancer Screening BLUE-C"

NCT04144751
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Blood Sample Collection
Other
Lead sponsor
Exact Sciences Corporation
Industry
Eligibility
40 Years and older
Enrollment
23,494 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
194
States / cities
Birmingham, Alabama • Cullman, Alabama • Dothan, Alabama + 160 more
Source: ClinicalTrials.gov public record
Updated Sep 27, 2023 · Synced Jul 22, 2026, 4:23 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Blood and Stool Sample Collection in Subjects Participating in Colorectal Cancer Screening: Act Bold

NCT03821948
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Not listed
Lead sponsor
Exact Sciences Corporation
Industry
Eligibility
40 Years and older
Enrollment
5,131 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
40
States / cities
Tempe, Arizona • Chula Vista, California • Huntington Beach, California + 36 more
Source: ClinicalTrials.gov public record
Updated Jul 20, 2020 · Synced Jul 22, 2026, 4:23 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Community Dynamics of Malaria Transmission in Humans and Mosquitoes at Maferinyah Sub-Prefecture, Guinea

NCT04969913
View directory record Official record
Conditions
Malaria
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Months and older
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 23, 2024 · Synced Jul 22, 2026, 4:23 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Blood Sampling for Research Related to Sickle Cell Disease

NCT00542230
View directory record Official record
Conditions
Sickle Cell Trait, Sickle Cell Disease, Sickle Cell Anemia
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 100 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 7, 2026 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Phase 3 Interventional

Efficacy and Safety of ALGRX 3268 in Management of Needlestick Pain in Children.

NCT00140088
View directory record Official record
Conditions
Procedural Pain
Interventions
ALGRX 3268
Drug
Lead sponsor
AlgoRx Pharmaceuticals
Industry
Eligibility
3 Years to 18 Years
Enrollment
504 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 31, 2005 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Not applicable Interventional

Feasibility and Smokers' Reactions to DNA Feedback

NCT02922790
View directory record Official record
Conditions
Smoking
Interventions
standard health information, standard health information plus info. on DNA damage, Subjects will review standard health information and information on DNA damage, plus pictures of their DNA damage
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 4, 2018 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Comparison of Synera Patch Versus LMX-4 Cream Versus Placebo Patch for Pain Reduction During Venipuncture in Children

NCT01115062
View directory record Official record
Conditions
Pain, Venipuncture, Anesthetics, Local
Interventions
Synera Patch, LMX 4 Cream, Placebo Patch
Drug
Lead sponsor
Carol Morreale
Other
Eligibility
5 Years to 17 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Charleston, West Virginia
Source: ClinicalTrials.gov public record
Updated Feb 3, 2014 · Synced Jul 22, 2026, 4:23 AM EDT
Withdrawn Not applicable Interventional

Augmented Reality Heads-up Display to Improve Ultrasound Guided IV Access

NCT05710445
View directory record Official record
Conditions
Phlebotomy
Interventions
Augmented Reality
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 14, 2024 · Synced Jul 22, 2026, 4:23 AM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Collection and Distribution of Samples From Healthy Donors for In Vitro Research at the NCI-Frederick

NCT00339911
View directory record Official record
Conditions
Healthy Donors
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
1,200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2030
U.S. locations
1
States / cities
Frederick, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Jul 22, 2026, 4:23 AM EDT
Completed Not applicable Interventional Results available

AMBULATE Continued Access Protocol to Evaluate the Cardiva Mid-Bore Venous Vascular Closure System (VVCS)

NCT03573206
View directory record Official record
Conditions
Surgical Wound
Interventions
Cardiva Mid-Bore Venous Vascular Closure Device (VVCS)
Device
Lead sponsor
Cardiva Medical, Inc.
Industry
Eligibility
18 Years and older
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
3
States / cities
Atlanta, Georgia • Ridgewood, New Jersey • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Mar 9, 2023 · Synced Jul 22, 2026, 4:23 AM EDT
Not listed No phase listed Observational

A Comparator Study of a Tasso Device Blood Sample to Traditional Venous Blood Sample for CBC

NCT06360952
View directory record Official record
Conditions
Leukopenia, Leukocytosis, Neutropenia
Interventions
Tasso+ CBC
Device
Lead sponsor
Tasso Inc.
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 20, 2024 · Synced Jul 22, 2026, 4:23 AM EDT