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TR-701 FA

Phase 3

Skin and Subcutaneous Tissue Bacterial Infections | Small molecule | Infectious Disease |Merck & Company, Inc.|Last Updated: Nov 15, 2019

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials2
Total Enrollment1,333

FDA Designations

No designations recorded

Clinical trial landscape

TR-701 FA · 9 trials · 5 indications

Phase 3 2Phase 1 7
NCT01421511TR-701 FA vs Linezolid for the Treatment of Acute Bacterial Skin and Skin Structure InfectionsSkin and Subcutaneous Tissue Bacterial Infections
COMPLETED666 Analytics
NCT01170221TR-701 FA vs. Linezolid for the Treatment of Acute Bacterial Skin and Skin Structure Infections.Skin and Subcutaneous Tissue Bacterial Infections
COMPLETED667 Analytics
PHASE3COMPLETED
TR-701 FA vs Linezolid for the Treatment of Acute Bacterial Skin and Skin Structure Infections
Skin and Subcutaneous Tissue Bacterial InfectionsUnlock trial analytics
PHASE3COMPLETED
TR-701 FA vs. Linezolid for the Treatment of Acute Bacterial Skin and Skin Structure Infections.
Skin and Subcutaneous Tissue Bacterial InfectionsUnlock trial analytics

Study Endpoints

Primary Endpoints

The Early Clinical Response Rate
48-72 hours

Responder: No increase in lesion surface area from baseline.

Early Clinical Response Rate
48-72 hours

Responder: No increase in lesion surface area from baseline and oral temperature ≤37.6°C

Safety
6 weeks

The primary objective is to determine the safety of oral 200 mg TR-701 free acid (FA) administered once daily for 10 days in healthy adults. Safety outcome measures include the number and proportion of participants with adverse events, changes in vital signs and ECG, and evaluation of physical examination changes including neurologic and ophthalmologic exams.

Systolic Blood Pressure
13 days

To compare systolic blood pressure post administration of pseudoepherine concurrent with TR-701 FA and Placebo

Compare PK profile of TR-700 FA in elderly subjects versus younger control subjects
28 days
QTcF Change from Baseline
24 Hours

Time-matched, placebo adjusted change from the baseline QTcF (ΔΔQTcF).

PK Assessment
7 days

PK Assessment in moderate and severe hepatic impairment and matched controls.PK Assessments include plasma parameters maximum observed concentration (Cmax), time to occurrence of Cmax, area under the plasma concentration-time curve from Hour 0 to the last measurable concentration(AUC0-t), area under the plasma concentration-time curve from Hour 0 extrapolated to infinity (AUC0-∞)and systemic clearance.

Pharmacokinetic parameters from plasma.
Day 3

Pharmacokinetic parameters compared with baseline measurements.

Adolescent PK
2 days

To describe the single-dose pharmacokinetics (PK) of IV and oral TR-701 FA administration in 12 to 17 year old adolescent patients, based on the individual plasma and urine concentration-time data.

Secondary Endpoints

Clinical Response at the End of Therapy Visit
Day 11
Clinical Response at the End of Therapy Visit in the Clinically Evaluable at End of Therapy Analysis Set
End of Therapy Day 11
Investigator's Assessment of Clinical Success at the Post Treatment Evaluation Visit
Post-Treatment Evaluation (7-14 days after the End of Therapy)
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
TR-701 FAEXPERIMENTAL• TR-701 FA IV followed by TR-701 FA tablets
LinezolidACTIVE_COMPARATOR• Linezolid IV followed by Linezolid Tablets
TR-701 FA with PSEEXPERIMENTALTR-701 FA 200 mg oral with PSE
TR-701 FA Placebo with PSEPLACEBO_COMPARATORTR-701 FA Placebo 200 mg oral with PSE
Elderly subjects (65 or older)EXPERIMENTAL -
Younger adults (18-45 years old)EXPERIMENTAL -
Moxifloxacin 400 mgACTIVE_COMPARATOR -
TR-701 FA 1200 mgEXPERIMENTAL -
TR-701 FA 200 mg plus PlaceboEXPERIMENTAL -
PlaceboPLACEBO_COMPARATOR -
Moderate hepaticEXPERIMENTAL -
Severe HepaticEXPERIMENTAL -
Matched controlEXPERIMENTAL -
healthy volunteerEXPERIMENTALhealthy volunteers
oral TR-701 FAEXPERIMENTALSingle oral dose of 200 mg TR-701
IV TR-701 FAEXPERIMENTALSingle IV infusion of 200 mg TR-701 FA

Interventions

NameTypeDescription
TR-701 FADRUG* TR-701 FA 200 mg once daily in 250 mL sterile saline for injection as a 60 minute IV infusion * TR-701 FA Tablets, 200 mg, orally once daily
LinezolidDRUG* Linezolid 600 mg IV Injection twice daily in 300 mL sterile saline for injection as a 60 minute IV infusion * Linezolid Tablets, 600 mg, orally every 12 hours
TR-701 FA with PSEDRUGTR-701 FA Oral 200 mg oral with PSE
TR-701 FA Placebo with PSEOTHERTR-701 FA Placebo Oral 200 mg with PSE
TR-701 FA 200 mgDRUGSingle oral tablet of TR-701 FA to elderly subjects
TR-701 FA 1200 mgDRUG6 tablet of T-701 FA
Moxifloxacin 400 mgDRUG1 tablet 400 mg Moxifloxacin
TR-701 FA 200 mg plus PlaceboDRUG1 tablet of TR-701 FA with 5 tablet placebo
PlaceboDRUG6 placebo tablets
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites117

Inclusion Criteria: * Patients requiring IV antibiotic therapy and with systemic signs of infection diagnosed with ABSSSI. * Diagnosed with Cellulitis/ erysipelas, major cutaneous abscess, or wound infections Exclusion Criteria: * Uncomplicated skin infections * Severe sepsis or septic shock * AB...

Countries:United StatesArgentinaAustraliaBrazilGermanyMexicoNew ZealandPolandRussiaSouth AfricaSpainCanadaCzechiaHungaryLatviaPeruSlovakiaUkraine
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Frequently asked questions about TR-701 FA

What is TR-701 FA used for?

TR-701 FA is an investigational small molecule being studied for bacterial infections, including skin and subcutaneous tissue bacterial infections such as major cutaneous abscess, cellulitis, and erysipelas. It has also been evaluated in healthy volunteers and in subjects with hepatic impairment.

Who is developing TR-701 FA?

TR-701 FA is being developed by Merck & Company, Inc., which trades on the New York Stock Exchange under the ticker MRK. The company has sponsored clinical trials of the drug in the United States.

What phase is TR-701 FA in?

TR-701 FA is in Phase 1 clinical development. It has completed Phase 1 trials, and one Phase 2 trial has also been completed. The drug remains investigational and is not yet approved for any use.

What clinical trials is TR-701 FA in?

TR-701 FA has completed several clinical trials, including NCT00983255, a Phase 1 ascending dose pharmacokinetic and absolute bioavailability study in bacterial infections; NCT01461460, a thorough QT study in healthy subjects; NCT01496677, a pharmacokinetics, safety, and tolerability study in elderly subjects; and NCT01519778, a Phase 2 safety and exploratory skin lesion measurement study.

Is TR-701 FA the same as TR-701 free acid?

Yes, TR-701 FA stands for TR-701 free acid. Clinical trial titles refer to TR-701 free acid (FA), and the drug is identified by the same name across studies. It is an investigational small molecule being studied for bacterial infections.