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MK-8723

Phase 1

Immune Thrombocytopenia Purpura | Small molecule | Hematology |Merck & Company, Inc.|Last Updated: Mar 15, 2019

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment50
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01963260Single Rising Dose Study of MK-8723 in Healthy Participants and Participants With Immune Thrombocytopenia Purpura (MK-8723-001)PHASE1 COMPLETED 50Oct 31, 2013Apr 26, 2015Mar 15, 2019 -
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Study Endpoints
Primary Endpoints
Number of Participants Experiencing an Adverse Event
Up to 84 days

An AE is defined as any unfavorable and unintended medical occurrence in a clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment.

Number of Participants Discontinuing Study Due to an Adverse Event (AE)
Up to 84 Days

An AE is defined as any unfavorable and unintended medical occurrence in a clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment.

Number of Participants With a Positive Platelet Response to MK-8723
Up to Day 14

In participants with ITP, platelet response is a rapid, sensitive, and highly qualitative measure of response to anti-inflammatory therapy. A positive platelet response was defined as: 1) A doubling of platelet counts at the time point of maximum response (through Day 14) as compared to Day 0 AND an increase to an absolute level of ≥50,000/μL in participants with a baseline platelet count of \<50,000/μL, OR 2) A 50% increase in the platelet count at the time point of maximum response (through Day 14) as compared to Day 0 in participants with a baseline platelet count of ≥50,000/μL. The analysis was specified only for participants with ITP (Part 2) that received treatment with MK-8723 or matching placebo.

Secondary Endpoints
Area Under the Concentration-time Curve of MK-8723 From Time 0 to Infinity (AUC0-∞) Among Healthy Participants and Participants With ITP
All dose groups: Predose and 4 (end of infusion), 6, 12, 24 hrs postdose and Days 3, 4, 5, 7, 10, 14, 21, 28; 30 mg/kg and 100 mg/kg dose groups: Days 43, 56, 71, 84
Maximum Concentration (Cmax) of MK-8723 Among Healthy Participants and Participants With ITP
All dose groups: Predose and 4 (end of infusion), 6, 12, 24 hrs postdose and Days 3, 4, 5, 7, 10, 14, 21, 28; 30 mg/kg and 100 mg/kg dose groups: Days 43, 56, 71, 84
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Part 1: MK-8723 1 mg/kg in Healthy ParticipantsEXPERIMENTALMK-8723 1 mg/kg administered as a single IV infusion to healthy participants in Part 1.
Part 1: MK-8723 3 mg/kg in Healthy ParticipantsEXPERIMENTALMK-8723 3 mg/kg administered as a single IV infusion to healthy participants in Part 1.
Part 1: MK-8723 10 mg/kg in Healthy ParticipantsEXPERIMENTALMK-8723 10 mg/kg administered as a single IV infusion to healthy participants in Part 1.
Part 1: MK-8723 30 mg/kg in Healthy ParticipantsEXPERIMENTALMK-8723 30 mg/kg administered as a single IV infusion to healthy participants in Part 1.
Part 1: MK-8723 100 mg/kg in Healthy ParticipantsEXPERIMENTALMK-8723 100 mg/kg administered as a single IV infusion to healthy participants in Part 1.
Part 1: Matching Placebo to MK-8723PLACEBO_COMPARATORMatching placebo to MK-8723 administered as a single IV infusion to healthy participants in Part 1.
Part 2: MK-8723 10 mg/kg in ITP ParticipantsEXPERIMENTALMK-8723 10 mg/kg administered as a single IV infusion to participants with ITP in Part 2.
Part 2: MK-8723 30 mg/kg in ITP ParticipantsEXPERIMENTALMK-8723 30 mg/kg administered as a single IV infusion to participants with ITP in Part 2.
Part 2: MK-8723 100 mg/kg in ITP ParticipantsPLACEBO_COMPARATORMK-8723 100 mg/kg administered as a single IV infusion to participants with ITP in Part 2.
Part 2: Matching Placebo to MK-8723PLACEBO_COMPARATORMatching placebo to MK-8723 administered as a single IV infusion to participants with ITP in Part 2.
Interventions
NameTypeDescription
MK-8723DRUGMK-8723 administered as a single IV infusion over approximately 4 hours on Day 1.
Matching PlaceboDRUGMatching placebo to MK-8723 administered as a single IV infusion over approximately 4 hours on Day 1.
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Eligibility Criteria
Age Range18 Years — 70 Years
SexALL
Healthy VolunteersYes

Inclusion Criteria (Part 1): * Female participants must be non-pregnant, non-breast feeding, and of non-childbearing potential * Has a Body Mass Index (BMI) \<=32 kg/m\^2 * Has a body weight \>= 50 kg and \<= 100 kg * Has been judged to be in good health based on medical history, physical examinati...

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