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Showing 1–24 of 71 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Tick-Borne Infections Clear all
Not listed No phase listed Observational Accepts healthy volunteers

Biomarker Study of Previously Treated Lyme Disease Volunteers in Comparison to Healthy Volunteers

NCT04835792
View directory record Official record
Conditions
Lyme Disease
Interventions
Stool and blood collection
Other
Lead sponsor
FlightPath Biosciences, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Apr 7, 2021 · Synced Sep 15, 2026, 5:18 AM EDT
Terminated No phase listed Observational

CD8 Reactivity to Microorganisms in Blood and Breast Milk

NCT03084614
View directory record Official record
Conditions
Immune Modulation, Tuberculosis, Leprosy, Pertussis, Lyme Disease
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 13, 2019 · Synced Sep 15, 2026, 5:18 AM EDT
Active, not recruiting Phase 2 Interventional Accepts healthy volunteers

A Study to Evaluate Safety and Efficacy of TP-05 in Healthy Participants With Tick Exposure

NCT07562087
View directory record Official record
Conditions
Lyme Disease
Interventions
TP-05 (lotilaner) Low Dose, TP-05 (lotilaner) High Dose, Placebo
Drug
Lead sponsor
Tarsus Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
722 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
19
States / cities
Pikesville, Maryland • Brookline, Massachusetts • Fall River, Massachusetts + 16 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Sep 15, 2026, 5:18 AM EDT
Completed Early Phase 1 Interventional

Searching for Persistence of Infection in Lyme Disease

NCT01143558
View directory record Official record
Conditions
Lyme Disease
Interventions
Lyme Disease Xenodiagnosis
Device
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
3
States / cities
New Haven, Connecticut • Bethesda, Maryland • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 15, 2026, 5:18 AM EDT
Completed Phase 3 Interventional

A Randomized, Double-Blind, Placebo-Controlled, Multicenter Trial of the Safety and Efficacy of Ceftriaxone and Doxycycline in the Treatment of Patients With Seronegative Chronic Lyme Disease

NCT00000938
View directory record Official record
Conditions
Lyme Disease
Interventions
ceftriaxone, doxycycline
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2005
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 26, 2010 · Synced Sep 15, 2026, 5:18 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Lyme Test Indication Combinations (LyTIC) Study

NCT03201042
View directory record Official record
Conditions
Lyme Disease
Interventions
PCR based assay, Serology based assay, Tcell based assay
Diagnostic Test
Lead sponsor
Oxford Immunotec
Industry
Eligibility
5 Years and older
Enrollment
410 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
60
States / cities
Redding, California • New London, Connecticut • Norwalk, Connecticut + 53 more
Source: ClinicalTrials.gov public record
Updated Dec 12, 2018 · Synced Sep 15, 2026, 5:18 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Analysis of Lyme Disease Lesions

NCT00132327
View directory record Official record
Conditions
Erythema Migrans Lesions, Erythema Migrans
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2018
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 2, 2018 · Synced Sep 15, 2026, 5:18 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

A Study to Learn About the Safety, Tolerability, and Immunogenicity of a Fifth Dose of 6-Valent OspA-Based Lyme Disease Vaccine

NCT07500506
View directory record Official record
Conditions
Lyme Disease
Interventions
VLA15, Placebo
Biological
Lead sponsor
Pfizer
Industry
Eligibility
7 Years and older
Enrollment
1,712 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
19
States / cities
Bangor, Maine • Worcester, Massachusetts • Flemington, New Jersey + 13 more
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 15, 2026, 5:18 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

First Clinical Study of the Safety and Blood Levels of a Human Monoclonal Antibody (2217LS) Against Lyme Disease Bacteria in Healthy People

NCT04863287
View directory record Official record
Conditions
Lyme Disease
Interventions
2217LS, 0.9% Sodium Chloride (NaCl)
Biological · Other
Lead sponsor
MassBiologics
Other
Eligibility
19 Years to 65 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 15, 2022 · Synced Sep 15, 2026, 5:18 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Disulfiram: A Test of Symptom Reduction Among Patients With Previously Treated Lyme Disease

NCT03891667
View directory record Official record
Conditions
Fatigue, Quality of Life
Interventions
Disulfiram
Drug
Lead sponsor
Research Foundation for Mental Hygiene, Inc.
Other
Eligibility
18 Years to 65 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 8, 2025 · Synced Sep 15, 2026, 5:18 AM EDT
Recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Human Immune Response to Ixodes Scapularis Tick Bites

NCT05036707
View directory record Official record
Conditions
Tick-borne Diseases, Tick Resistance, Lyme Disease
Interventions
Xenodiagnosis Ticks, skin biopsy, blood draw
Device · Procedure
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2028
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 15, 2026, 5:18 AM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers

Passive Prophylaxis of Lyme Disease Using Permethrin Treated Clothes

NCT00958139
View directory record Official record
Conditions
Lyme Disease
Interventions
Permethrin, Placebo
Other
Lead sponsor
University of Minnesota
Other
Eligibility
14 Years to 65 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Rice Lake, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 3, 2020 · Synced Sep 15, 2026, 5:18 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Lyme Disease Diagnostic Assay - Collection of Whole Blood

NCT05041595
View directory record Official record
Conditions
Lyme Disease, Healthy
Interventions
Lyme diagnostic assay
Diagnostic Test
Lead sponsor
DiaSorin Inc.
Industry
Eligibility
Not listed
Enrollment
450 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Stillwater, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 19, 2024 · Synced Sep 15, 2026, 5:18 AM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Vaccine Study for Tick-Borne Encephalitis Virus (TBEV)

NCT01031537
View directory record Official record
Conditions
Tick-Borne Encephalitis, Encephalitis, Tick-Borne, Tick-Borne Disease, Glycoprotein E, Flavivirus, NSI Protein, Flavivirus
Interventions
FSME-IMMUN 0.5ml Baxter
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 100 Years
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2016
U.S. locations
2
States / cities
Bethesda, Maryland • Hamilton, Montana
Source: ClinicalTrials.gov public record
Updated Jul 4, 2018 · Synced Sep 15, 2026, 5:18 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Lyme Disease Prevention Program

NCT00000432
View directory record Official record
Conditions
Lyme Disease, Tick-Borne Diseases
Interventions
Education about disease prevention
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
Not listed
Enrollment
20,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1997 – 2001
U.S. locations
1
States / cities
Hyannis, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 23, 2013 · Synced Sep 15, 2026, 5:18 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety Study of a Vaccine to Help Protect Against Lyme Disease in Healthy Children

NCT05634811
View directory record Official record
Conditions
Lyme Disease
Interventions
VLA15, Normal Saline
Biological · Other
Lead sponsor
Pfizer
Industry
Eligibility
5 Years to 17 Years
Enrollment
3,547 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
65
States / cities
Birmingham, Alabama • Guntersville, Alabama • Bellflower, California + 55 more
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Sep 15, 2026, 5:18 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Brain Imaging and Retreatment Study of Persistent Lyme Disease

NCT00037479
View directory record Official record
Conditions
Lyme Disease, Lyme Neuroborreliosis
Interventions
ceftriaxone
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 65 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 1999
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 6, 2005 · Synced Sep 15, 2026, 5:18 AM EDT
Recruiting Not applicable Interventional

taVNS for Persistent Symptoms From Lyme Disease

NCT05776251
View directory record Official record
Conditions
Post-Treatment Lyme Disease
Interventions
taVNS
Device
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 15, 2026, 5:18 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

A Human Tick Kill Study to Investigate the Safety, Tolerability, and Whole Blood Concentration of TP-05

NCT05387083
View directory record Official record
Conditions
Healthy Volunteer
Interventions
Low Dose TP-05, High Dose TP-05, Placebo Comparator
Drug
Lead sponsor
Tarsus Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 59 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 15, 2026, 5:18 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study Assessing the Safety, Immunogenicity and Dose Response of VLA15, A New Vaccine Candidate Against Lyme Borreliosis

NCT03010228
View directory record Official record
Conditions
Lyme Borreliosis, Nervous System
Interventions
VLA15 with Alum, VLA15 without Alum
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 39 Years
Enrollment
179 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
4
States / cities
La Mesa, California • Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Apr 4, 2023 · Synced Sep 15, 2026, 5:18 AM EDT
Terminated Not applicable Interventional Results available

Detection of Borrelia Bacteria in Early Stage Lyme Borreliosis Using the T2Lyme Panel

NCT03581279
View directory record Official record
Conditions
Lyme Disease
Interventions
T2Lyme Panel testing
Device
Lead sponsor
T2 Biosystems
Industry
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
Wakefield, Rhode Island • La Crosse, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 3, 2022 · Synced Sep 15, 2026, 5:18 AM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

A Study to Learn About Different Dosing Schedules of a Lyme Disease Vaccine in Healthy Adults

NCT07226882
View directory record Official record
Conditions
Lyme Borreliosis
Interventions
VLA15, Placebo
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 44 Years
Enrollment
207 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
6
States / cities
Warren Township, New Jersey • Cortland, New York • Horseheads, New York + 3 more
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 15, 2026, 5:18 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Alternative Schedule Study For VLA15, a Vaccine Candidate Against Lyme Borreliosis

NCT03970733
View directory record Official record
Conditions
Lyme Borreliosis
Interventions
VLA15, Placebo
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 65 Years
Enrollment
246 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
5
States / cities
Milford, Connecticut • Stamford, Connecticut • Binghamton, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2023 · Synced Sep 15, 2026, 5:18 AM EDT
Withdrawn Phase 1Phase 2 Interventional

Ceftriaxone for Post-Treatment Lyme Disease

NCT06785402
View directory record Official record
Conditions
Post-Treatment Lyme Disease Syndrome
Interventions
Ceftriaxone treatment, Placebo
Drug
Lead sponsor
Hackensack Meridian Health
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Sep 15, 2026, 5:18 AM EDT