A Study to Evaluate the Efficacy and Safety of Pimodivir in Combination With the Standard-of-Care Treatment in Adolescent, Adult, and Elderly Non-Hospitalized Participants With Influenza A Infection Who Are at Risk of Developing Complications

Janssen (J&J Innovative Medicine)

Status and phase: Terminated; Phase 3

Conditions: Influenza A

Treatments: Other: SOC Treatment; Drug: Placebo; Drug: Pimodivir 600 mg

Study type: Interventional

Funder types: Industry

Identifiers

NCT03381196

63623872FLZ3002 (Other Identifier)

CR108400

2017-002217-59 (EudraCT Number)

Details and patient eligibility

About

The purpose of this study is to evaluate the clinical and virologic benefit of pimodivir in combination with Standard-of-Care (SOC) treatment compared to placebo in combination with SOC treatment.

Full description

This double-blind (neither researchers nor participants know what treatment participant is receiving) study will evaluate efficacy/safety of pimodivir in combination with SOC treatment versus placebo in combination with SOC treatment in adolescent (13 to 17 years), adult (18 to 65 years), and elderly (greater than [>] 65 but less than or equal to [<=] 85 years) non-hospitalized participants with influenza A infection who are at risk of developing complications. The study will be conducted in 3 phases: screening phase, double-blind treatment period (5 days), a post treatment follow-up period (23 days). Study evaluations include efficacy, clinical and virological outcomes, pharmacokinetics (PK), PK/pharmacodynamics, biomarkers, safety and tolerability. The duration of participation in the study for each participant is 28 days.

Enrollment: 553 patients

Sex: All

Ages: 13 to 85 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Present to the clinic with symptoms suggestive of a diagnosis of acute influenza and have at least 1 respiratory symptom and at least 1 systemic symptom, both scored as at least "moderate" if the symptom did not pre-exist before influenza onset, or scored worse than usual if the symptom pre-existed as determined by subject's ratings on Module 1 of the Flu-iiQ and the Pre-existing Symptom Questionnaire in the ePRO device. Symptoms must include the following by category: a) Respiratory symptoms: cough, sore throat, nasal congestion b) Systemic symptoms: headache, body aches or pain, feverishness, fatigue
• Tested positive for influenza A infection after the onset of symptoms, using a rapid influenza diagnostic test (RIDT) or, if available, a polymerase chain reaction (PCR)-based or other rapid molecular diagnostic assay
• Not be in need of hospitalized medical care at screening. Emergency room or hospital observation status for an anticipated duration of less than (<)24 hours is not considered hospitalization as long as a determination of the need for hospitalization has not been made
• Enrollment and initiation of study drug treatment less than or equal to (<=)72 hours after onset of influenza symptoms
• Participants 13 to 65 years of age, inclusive must also have at least 1 of the following: a) Cardiovascular or cerebrovascular disease (including congenital heart disease, chronic heart failure, coronary artery disease, or stroke; excluding isolated hypertension); b) Chronic lung disease (for example, asthma, chronic obstructive lung disease [COPD] or cystic fibrosis); c) Weakened immune system due to disease or medication (for example, participants with human immunodeficiency virus [HIV], cancer, or chronic liver or kidney disease [presence of kidney damage for >3 months, defined by structural or functional abnormalities of the kidney, with or without decreased GFR manifested by: pathological abnormalities; OR markers of kidney damage, including abnormalities in the composition of the blood or urine or abnormalities in imaging tests], or participants taking chronic systemic steroids)

Exclusion criteria

• Received more than (>)1 dose of influenza antiviral medication (for example, oseltamivir [OST] or zanamivir), or any dose of ribavirin within 2 weeks, prior to first study drug intake, or received intravenous (IV) peramivir >1 day prior to screening
• Unstable angina pectoris or myocardial infarction within 30 days prior to screening (inclusive)
• Presence of clinically significant heart arrhythmias, uncontrolled, unstable atrial arrhythmia, or sustained ventricular arrhythmia, or risk factors for Torsade de Pointes syndrome
• Known severe hepatic impairment (Child Pugh C cirrhosis) or chronic hepatitis C infection undergoing hepatitis C antiviral therapy
• Severely immunocompromised in the opinion of the investigator (for example, known cluster of differentiation 4 plus [CD4+] count <200 cells per cubic millimeter [cells/mm^3], absolute neutrophil count <750/mm^3, first course of chemotherapy completed within 2 weeks prior to screening, history of stem cell transplant within 1 year prior to screening, history of a lung transplant)

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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553 participants in 2 patient groups, including a placebo group

Treatment Arm 1 (pimodivir + SOC treatment)

Experimental group

Description:

Participants will receive pimodivir 600 milligram (mg), orally, twice daily, for 5 days (on Days 1 through 5; for participants who will receive only 1 dose of pimodivir on Day 1 \[evening\], dosing will continue until the morning of Day 6) along with Standard-of-Care (SOC) treatment. The SOC treatment is determined by the investigator based on local practice, and may include influenza antivirals and/or supportive care only. The choice to use influenza antivirals as part of the SOC should be made before randomization. The influenza antiviral should be started no later than Day 2 morning (up to noon). An influenza antiviral as part of the SOC cannot be changed (for example, switching one influenza antiviral for another) during the treatment period, with the exception that an influenza antiviral may be discontinued in the case of a suspected adverse event (AE).

Treatment:

Drug: Pimodivir 600 mg

Other: SOC Treatment

Treatment Arm 2 (placebo + SOC treatment)

Placebo Comparator group

Description:

Participants will receive placebo matching to pimodivir orally, twice daily, for 5 days (on Days 1 through 5; for participants who will receive only 1 dose of placebo on Day 1 \[evening\], dosing will continue until the morning of Day 6) along with SOC treatment. The SOC treatment is determined by the investigator based on local practice, and may include influenza antivirals and/or supportive care only. The choice to use influenza antivirals as part of the SOC should be made before randomization. The influenza antiviral should be started no later than Day 2 morning (up to noon). An influenza antiviral as part of the SOC cannot be changed (for example, switching one influenza antiviral for another) during the treatment period, with the exception that an influenza antiviral may be discontinued in the case of a suspected AE.

Treatment:

Drug: Placebo

Other: SOC Treatment