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Bezlotoxumab

Phase 3

Clostridium Difficile Infection | Monoclonal antibody | Infectious Disease |Merck & Company, Inc.|Last Updated: Jul 27, 2023

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment148

FDA Designations

No designations recorded

Clinical trial landscape

Bezlotoxumab · 1 trial · 1 indication

Phase 3 1
NCT03182907Bezlotoxumab (MK-6072) Versus Placebo in Children With Clostridium Difficile Infection (CDI) (MK-6072-001)Clostridium Difficile Infection
COMPLETED148 Analytics
PHASE3COMPLETED
Bezlotoxumab (MK-6072) Versus Placebo in Children With Clostridium Difficile Infection (CDI) (MK-6072-001)
Clostridium Difficile InfectionUnlock trial analytics

Study Endpoints

Primary Endpoints

Area Under the Concentration-Time Curve of Bezlotoxumab From Time 0 to Infinity (AUC0-inf)
Day 1 (2 hours postdose), Days 10, 29, 57, and 85

Blood samples were collected at specified intervals for the determination of AUC0-inf. AUC0-inf was defined as the area under the concentration-time curve of bezlotoxumab from time zero to infinity. Per protocol, AUC0-inf of bezlotoxumab was determined for each age cohort.

Percentage of Participants Who Experienced an Adverse Event (AE)
Up to approximately 12 weeks

An AE was defined as any untoward medical occurrence associated with the use of a drug in a participant, whether or not considered drug related. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product and does not imply any judgment about causality. Per protocol, percentage of participants with AEs in the bezlotoxumab and placebo groups were presented.

Percentage of Participants Who Discontinued Study Due to an AE
Up to approximately 12 weeks

An AE was defined as any untoward medical occurrence associated with the use of a drug in a participant, whether or not considered drug related. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product and does not imply any judgment about causality. Per protocol, percentage of participants who discontinued study due to AEs in the bezlotoxumab and placebo groups were presented.

Secondary Endpoints

Percentage of Participants Who Had a Clostridium Difficile Infection (CDI) Recurrence
Up to approximately 12 Weeks
Percentage of Participants Who Had a Sustained Clinical Response (SCR)
Up to approximately 12 Weeks
Percentage of High-Risk Participants Who Experienced a CDI Recurrence
Up to approximately 12 Weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
BezlotoxumabEXPERIMENTALParticipants receive 10 mg of bezlotoxumab per kg body weight via a single 60-minute (±10 minutes) intravenous (IV) infusion on Day 1. Additionally, participants receive background antibacterial drug treatment (ABD) for 10-21 days per institutional guidelines, at the investigator's discretion. Dose may then be changed based on results from initial 12 participants.
PlaceboPLACEBO_COMPARATORParticipants receive placebo for bezlotoxumab consisting of either 0.9% sodium chloride or 5% dextrose via a single 60-minute (±10 minutes) IV infusion on Day 1. Additionally, participants receive background ABD for 10-21 days per institutional guidelines, at the investigator's discretion.

Interventions

NameTypeDescription
BezlotoxumabBIOLOGICALA single intravenous (IV) infusion of 10 mg of bezlotoxumab per kg body weight. Dose may then be changed based on results from initial 12 participants.
PlaceboDRUGA single IV infusion of placebo for bezlotoxumab consisting of either 0.9% sodium chloride or 5% dextrose.
Antibacterial drug treatment (ABD)DRUGABD will be administered for 10-21 days including the duration of ABD prior to the screening visit, during the screening period, and after the infusion of study treatment, per institutional guidelines, at the investigator's discretion. ABD is defined as the receipt of oral metronidazole, oral vancomycin, intravenous (IV) metronidazole concurrent with oral vancomycin, oral fidaxomicin, or oral fidaxomicin concurrent with IV metronidazole.
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Eligibility Criteria

Age Range1 Year to 17 Years
SexALL
Healthy VolunteersNo
Study Sites75

Inclusion Criteria: * At screening has suspected or confirmed Clostridium difficile infection (CDI), and is receiving or is planning to receive a 10- to 21-day course of antibacterial drug treatment for CDI * At study infusion has a diagnosis of CDI confirmed by a diagnostic assay which detects the...

Countries:United StatesArgentinaBrazilColombiaCzechiaGermanyHungaryMalaysiaMexicoNorwayPolandPortugalRomaniaSouth AfricaSpainSwedenUnited Kingdom
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Frequently asked questions about Bezlotoxumab

What is Bezlotoxumab used for?

Bezlotoxumab is a monoclonal antibody being developed for Clostridium Difficile Infection (CDI). It is an investigational therapy studied in a Phase 3 clinical trial in children with CDI. The drug is not approved and remains in clinical development.

What does Bezlotoxumab target?

Bezlotoxumab is a monoclonal antibody that targets Clostridium Difficile Infection. It is designed to bind to the C. difficile toxin B, neutralizing its effects. This mechanism is intended to help treat the infection by blocking the toxin's activity.

Who makes Bezlotoxumab?

Bezlotoxumab is developed by Merck & Company, Inc., a pharmaceutical company traded on the New York Stock Exchange under the ticker MRK. Merck is conducting clinical trials to evaluate the drug's safety and efficacy in patients with Clostridium Difficile Infection.

What phase is Bezlotoxumab in?

Bezlotoxumab is in Phase 3 clinical development. It has completed one Phase 3 trial in children with Clostridium Difficile Infection. The drug is investigational and has not been approved by regulatory authorities.

What clinical trials is Bezlotoxumab in?

Bezlotoxumab has one completed Phase 3 trial, NCT03182907, titled 'Bezlotoxumab (MK-6072) Versus Placebo in Children With Clostridium Difficile Infection (CDI) (MK-6072-001)'. The trial enrolled 148 participants across multiple countries and was placebo-controlled, randomized, and double-blind.

Is Bezlotoxumab the same as MK-6072?

Yes, Bezlotoxumab is also known as MK-6072. The clinical trial NCT03182907 refers to the drug as MK-6072, confirming that both names refer to the same investigational monoclonal antibody for Clostridium Difficile Infection.