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TP-05 Low Dose

Phase 2

Lyme Disease | Small molecule | Infectious Disease |Tarsus Pharmaceuticals, Inc.|Last Updated: Jul 9, 2026

Target and mechanism

Molecular targetGABA-Cl channels
ModalitySmall molecule

Also known as TP-05 (lotilaner) Low Dose

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment722

FDA Designations

No designations recorded

Clinical trial landscape

TP-05 Low Dose · 1 trial · 1 indication

Phase 2 1
NCT07562087A Study to Evaluate Safety and Efficacy of TP-05 in Healthy Participants With Tick ExposureLyme Disease
ACTIVE NOT_RECRUITING722 Analytics
PHASE2ACTIVE NOT_RECRUITING
A Study to Evaluate Safety and Efficacy of TP-05 in Healthy Participants With Tick Exposure
Lyme DiseaseUnlock trial analytics

Study Endpoints

Primary Endpoints

The Incidence of Treatment Emergent Adverse Events From Baseline
From day 1 through the end of study follow-up, an average of 15 months.

Safety and tolerability will be evaluated by incidence rate of treatment emergent adverse events from baseline.

Clinically Significant Changes From Baseline Chemistry Laboratory Tests
From day 1 through the end of study follow up, an average of 15 months.

Number of participants with clinically significant changes in clinical laboratory tests

Clinically Significant Changes From Baseline Hematology Laboratory Tests
From day 1 through the end of study follow up, an average of 15 months.

Number of participants with clinically significant changes in clinical laboratory tests.

Clinically Significant Changes From Baseline Vital Signs
From day 1 through the end of study follow up, an average of 15 months.

Number of participants with clinically significant changes in vital signs.

Clinically Significant Changes From Baseline Electrocardiograms (ECGs)
From day 1 through the end of study follow up, an average of 15 months.

Safety will be assessed by evaluating clinically significant changes from Baseline ECGs change in mean ventricular rate \[beats/min\].

Clinically Significant Changes From Baseline Electrocardiograms (ECGs) Measures
From day 1 through the end of study follow up, an average of 15 months.

Safety will be assessed by evaluating clinically significant changes from Baseline ECGs change in pulse rate \[msec\].

Clinically Significant Changes From Baseline QTC Interval
From day 1 through the end of study follow up, an average of 15 months.

Safety will be assessed by evaluating clinically significant changes from Baseline ECGs change in QTC interval

Clinically Significant Changes From Baseline QRS Interval
From day 1 through the end of study follow up, an average of 15 months.

Safety will be assessed by evaluating clinically significant changes from Baseline ECGs change in QRS interval.

Secondary Endpoints

Concentration of Lotilaner in Whole Blood
From dose through study completion, an average of 15 months.
Terminal Elimination Half Life (t½) of Lotilaner
At protocol specified timepoints through end study treatment phase, an average of 28 weeks.
Area Under the Concentration Time Curve (AUC) of Lotilaner
At protocol specified timepoints through end of pharmacokinetic sampling, an average of 15 months.
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
TP-05 (lotilaner) High DoseACTIVE_COMPARATOROral Tablet
PlaceboPLACEBO_COMPARATOROral Tablet
TP-05 (lotilaner) Low DoseACTIVE_COMPARATOROral Tablet

Interventions

NameTypeDescription
TP-05 (lotilaner) Low DoseDRUGTP05 administered orally at the protocol-defined preventative dose.
TP-05 (lotilaner) High DoseDRUGTP05 administered orally at the protocol-defined preventative dose.
PlaceboDRUGMatching placebo administered orally according to the same dosing schedule as TP05.
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Eligibility Criteria

Age Range18 Years to 70 Years
SexALL
Healthy VolunteersYes
Study Sites19

Inclusion Criteria: * Overtly healthy adult participants aged 18 to 70 years * Able to provide written informed consent * Willing and able to comply with study procedures * At high risk of exposure to ticks * Contraceptive use by men and women consistent with local regulations Exclusion Criteria: ...

Countries:United States
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Recent Changes (Last 90 Days)

MEDIUMJul 9, 2026NCT07562087Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMJul 9, 2026NCT07562087Status: RECRUITING → ACTIVE_NOT_RECRUITING

Frequently asked questions about TP-05 Low Dose

What is TP-05 used for?

TP-05 is an investigational small molecule being studied for the prevention of Lyme disease. It is being evaluated in healthy participants with tick exposure, with the goal of killing ticks before they can transmit the bacteria that cause Lyme disease.

What does TP-05 target?

TP-05 targets GABA-Cl channels, which are found in ticks and other arthropods. By acting on these channels, TP-05 is designed to kill ticks that attach to a person, potentially preventing the transmission of Lyme disease.

Who makes TP-05?

TP-05 is being developed by Tarsus Pharmaceuticals, Inc., a biopharmaceutical company traded on the Nasdaq under the ticker TARS. The company is conducting clinical trials to evaluate the safety and efficacy of TP-05 in healthy participants.

What phase is TP-05 in?

TP-05 is in Phase 1 clinical development. It has completed Phase 1 studies and is also being evaluated in Phase 2 trials, including a study in healthy participants with tick exposure. TP-05 is investigational and has not been approved by the FDA.

What clinical trials is TP-05 in?

TP-05 has been studied in several clinical trials, including NCT07562087, a Phase 2 study in healthy participants with tick exposure, and NCT05720364, a Phase 1 food effect study. Other completed trials include NCT05387083 and NCT05138796, which evaluated safety, tolerability, and pharmacokinetics.

Is TP-05 the same as TP-05 Low Dose?

Yes, TP-05 is also known as TP-05 (lotilaner) Low Dose and TP-05 Low Dose. These names refer to the same investigational drug, which is being studied for the prevention of Lyme disease.