Skip to content

MK-4482 Ph 2/3 Study in Hospitalized Participants with COVID-19

A Phase 2/3, Randomized, Placebo-Controlled, Double-Blind Clinical Study to Evaluate the Efficacy, Safety, and Pharmacokinetics of MK-4482 in Hospitalized Adults with COVID-19 - MK-4482 Ph 2/3 Study in Hospitalized Adults with COVID-19

Status
Not yet recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2020-003367-26-GB
Enrollment
1300
Registered
2020-09-21
Start date
2020-10-05
Completion date
Unknown
Last updated
2021-01-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COVID-19 MedDRA version: 23.0 Level: LLT Classification code 10084382 Term: Coronavirus disease 2019 System Organ Class: 100000004862

Interventions

Sponsors

Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Has documentation of PCR-confirmed SARS-CoV-2 infection with sample collection = 10 days prior to the day of randomization. 2. Had initial onset of signs/symptoms attributable to COVID-19 for =10 days prior to the day of randomization and =1 sign/symptom attributable to COVID-19 present at randomization. 3. Requires medical care in the hospital for ongoing clinical manifestations of COVID-19 (not just for public health or quarantine purposes). 4. Has mild, moderate, or severe COVID-19 5. Is willing and able to take oral medication. 6. Is male or female, =18 years of age, at the time of providing informed consent. 7. Male participants are eligible to participate if they agree to the following during the intervention period and for at least 90 days after the last dose of study intervention: - Refrain from donating sperm PLUS either: - Be abstinent from heterosexual intercourse as their preferred and usual lifestyle (abstinent on a long term and persistent basis) and agree to remain abstinent OR - Must agree to use contraception unless confirmed to be azoospermic (vasectomized or secondary to medical cause) as detailed below: Agree to use a male condom plus partner use of an additional contraceptive method when having penile-vaginal intercourse with a WOCBP who is not currently pregnant. - Contraceptive use by men should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies. 8. A female participant is eligible to participate if she is not pregnant or breastfeeding, and at least one of the following conditions applies: - Is not a WOCBP OR - Is a WOCBP and using a contraceptive method that is highly effective (a low user dependency method OR a user dependent method in combination with barrier method), or be abstinent from heterosexual intercourse as their preferred and usual lifestyle (abstinent on a long-term and persistent basis), for 28 days from the start of study intervention. The investigator should evaluate the potential for contraceptive method failure (ie, noncompliance, recently initiated) in relationship to the first dose of study intervention. - A WOCBP must have a negative highly sensitive pregnancy test (serum test is required) within 24 hours before the first dose of study intervention. - The investigator is responsible for review of medical history, menstrual history, and recent sexual activity to decrease the risk for inclusion of a woman with an early undetected pregnancy. - Contraceptive use by women should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies. - Given the elevated risk of venous thrombotic events in patients hospitalized with COVID-19, estrogen-containing contraceptives must not be started to fulfill the contraceptive requirement of this study at any time during participant’s hospitalization. If contraceptives are interrupted as standard of care management of COVID-19 patients and resumed at a later time point, such as at hospital discharge, then abstinence must be practiced for the defined period of back-up contraception per the contraceptive product labeling. After this period, contraceptive use must adhere to Protocol. 9. Participant (or legally acceptable representative) has provided documented informed consent for the study. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this a

Exclusion criteria

Exclusion criteria: 1. Has critical COVID-19 with any of the following: - Respiratory failure defined based on resource utilization requiring at least one of the following: Endotracheal intubation and mechanical ventilation, oxygen delivered by high-flow nasal cannula (heated, humidified, oxygen delivered via reinforced nasal cannula at flow rates >20 L/min with fraction of delivered oxygen =0.5), noninvasive positive pressure ventilation, ECMO, or clinical diagnosis of respiratory failure (i.e., clinical need for one of the preceding therapies, but preceding therapies not able to be administered in setting of resource limitation) - Shock (defined by systolic blood pressure 50 copies/mL or CD4 3X upper limit of normal at screening 5. Has a platelet count <100,000/µL or received a platelet transfusion in the 5 days prior to randomization. 6. Has a history of acute pancreatitis within 3 months prior to randomization or a history of chronic pancreatitis. 7. Has a baseline heart rate of < 50 beats per minute at rest. 8. Has hypersensitivity or other contraindication to any of the components of the study interventions as determined by the investigator. 9. Has any condition for which, in the opinion of the investigator, participation would not be in the best interest of the participant or that could prevent, limit, or confound the protocol-specified assessments including but not limited to: - Participants who are not expected to survive longer than 48 hours after randomization, or - Participants who are expected to require mechanical ventilation within 48 hours after randomization, or - Participants with a recent history of mechanical ventilation , or - Participants with conditions that could limit gastrointestinal absorption of capsule contents. 10. Is taking or is anticipated to require any prohibited therapies as outlined in the Protocol. 11. Is unwilling to abstain from participating in another interventional clinical trial through Day 29 with an investigational compound or device, including those for COVID-19 therapeutics. 12. Is anticipated to require transfer to a non-study hospital within 72 hours. 13. Is or has an immediate family member (eg, spouse, parent/legal guardian, sibling, or child) who is investigational site or Sponsor staff directly involved with this study.

Design outcomes

Primary

MeasureTime frame
Main Objective: 1. To evaluate the efficacy of MK-4482 compared to placebo as assessed by the rate of sustained recovery from randomization through Day 29. 2. To evaluate the safety and tolerability of MK-4482 compared to placebo.;Secondary Objective: 1. To evaluate the efficacy of MK-4482 compared to placebo as assessed by the percentage of participants who die through Day 29. 2. To evaluate the efficacy of MK-4482 compared to placebo as assessed by the odds of a more favorable response on selected ordinal outcome scales at Day 3, End of Treatment (EOT), Day 10, Day 15, and Day 29. 3. To evaluate the efficacy of MK-4482 compared to placebo as assessed by the odds of a more favorable response in the clinical risk of mortality category from the National Early Warning Score at EOT. 4. To evaluate the efficacy of MK-4482 compared to placebo as assessed by the odds of a more favorable response on the World Health Organization (WHO) 11-point ordinal scale on Day 3, EOT, Day 10, Day 15, and Day 29. ;Primary end point(s): 1. Time-to-sustained recovery 2. Percentage of participants with an adverse event (AE) 3. Percentage of participants who discontinued study intervention due to an AE;Timepoint(s) of evaluation of this end point: 1. Up to 29 Days 2. Up to 7 Months 3. Up to 6 Days

Secondary

MeasureTime frame
Secondary end point(s): 1. Percentage of participants with all-cause mortality 2. Pulmonary score on a scale 3. Pulmonary+ score on a scale 4. National Early Warning Score on a scale 5. WHO 11-point outcomes score on a scale ;Timepoint(s) of evaluation of this end point: 1. Up to 29 Days 2. Up to 29 Days 3. Up to 29 Days 4. End of Treatment (EOT) (Up to 6 Days) 5. Up to 29 Days

Countries

Brazil, Chile, Colombia, France, Israel, Italy, Japan, Korea, Republic of, Mexico, Philippines, Poland, Russian Federation, South Africa, Spain, Sweden, Ukraine, United Kingdom, United States

Contacts

Public ContactTayeb Naveed

Merck Sharp & Dohme (UK) Limited

tayeb.naveed@msd.com

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026