Trial Review

Registering a new trial?

To achieve prospective registration, we recommend submitting your trial for registration at the same time as ethics submission.

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been endorsed by the ANZCTR. Before participating in a study, talk to your health care provider and refer to this information for consumers
Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT02949011




Registration number
NCT02949011
Ethics application status
Date submitted
27/10/2016
Date registered
31/10/2016
Date last updated
19/11/2019

Titles & IDs
Public title
Study of S-033188 (Baloxavir Marboxil) Compared With Placebo or Oseltamivir in Patients With Influenza at High Risk of Influenza Complications
Scientific title
A Phase 3, Multicenter, Randomized, Double-blind Study of a Single Dose of S-033188 Compared With Placebo or Oseltamivir 75 mg Twice Daily for 5 Days in Patients With Influenza at High Risk of Influenza Complications
Secondary ID [1] 0 0
2016-002688-32
Secondary ID [2] 0 0
1602T0832
Universal Trial Number (UTN)
Trial acronym
CAPSTONE 2
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Condition category
Condition code

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Comparator / control treatment
Control group

Outcomes

Eligibility
Key inclusion criteria
1. Patients or their legal guardians who provide written informed consent to participate in the study on a voluntary basis. For adolescent patients, informed consent/assent of voluntary participation should be obtained in accordance with local requirements.
2. Male or female patients = 12 years at the time of signing the informed consent/assent form.
3. Patients with a diagnosis of influenza confirmed by all of the following:

1. Fever = 38ºC (axillary) during the predose examinations or within the 4 hours prior if antipyretics were taken
2. A positive rapid influenza diagnostic test (RIDT) result OR A patient with a negative RIDT may be enrolled if the patient reports contact with a known case of influenza within the prior 7 days and all other inclusion criteria are met.
3. At least 1 each of the following general and respiratory symptoms associated with influenza is present with a severity of moderate or greater:

i. General symptoms (headache, feverishness or chills, muscle or joint pain, or fatigue) ii. Respiratory symptoms (cough, sore throat, or nasal congestion)
4. The time interval between the onset of symptoms and the predose examinations is 48 hours or less. The onset of symptoms is defined as either:

1. Time of the first increase in body temperature (an increase of at least 1ºC from normal body temperature)
2. Time when the patient experiences at least 1 new general or respiratory symptom
5. If a women of childbearing potential, agrees to use a highly effective method of contraception for 3 months after the first dose of study drug
6. Patients will be considered at high risk* of influenza complications due to the presence of at least 1 of the following inclusion criteria:

1. Asthma or chronic lung disease (such as chronic obstructive pulmonary disease or cystic fibrosis)
2. Endocrine disorders (including diabetes mellitus)
3. Residents of long-term care facilities (eg, nursing homes)
4. Compromised immune system (including patients receiving corticosteroids not exceeding 20 mg of prednisolone or equivalent, and patients being treated for human immunodeficiency virus [HIV] infection with a CD4 count > 350 cells/mm³ within the last 6 months)
5. Neurological and neurodevelopmental disorders (including disorders of the brain, spinal cord, peripheral nerve, and muscle, eg, cerebral palsy, epilepsy [seizure disorders], stroke, muscular dystrophy, or spinal cord injury)
6. Heart disease (such as congenital heart disease, congestive heart failure, or coronary artery disease), excluding hypertension without any other heart-related symptoms
7. Adults aged = 65 years
8. American Indians and Alaskan Natives
9. Blood disorders (such as sickle cell disease)
10. Metabolic disorders (such as inherited metabolic disorders and mitochondrial disorders)
11. Morbid obesity (body mass index = 40 kg/m²)
12. Women who are within 2 weeks postpartum and are not breastfeeding
Minimum age
12 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
1. Patients with severe influenza virus infection requiring inpatient treatment.
2. Patients with known allergy to oseltamivir (Tamiflu®).
3. Patients unable to swallow tablets or capsules.
4. Patients who have previously received baloxavir marboxil.
5. Patients weighing = 40 kg.
6. Patients who have been exposed to an investigational drug within 30 days prior to the predose examinations.
7. Women who are pregnant, breastfeeding, or have a positive pregnancy test at the predose examinations. The following female patients who have documentation of either a or b below do not need to undergo a pregnancy test at the predose examinations:

1. Postmenopausal women (defined as cessation of regular menstrual periods for 2 years or more and confirmed by a follicle-stimulating hormone test)
2. Women who are surgically sterile by hysterectomy, bilateral oophorectomy, or tubal ligation
8. Patients with concurrent infections at the predose examinations requiring systemic antimicrobial therapy.
9. Patients with liver disease associated with hepatic impairment.
10. Patients with cancer within the last 5 years (unless nonmelanoma skin cancer).
11. Patients with untreated HIV infection or treated HIV infection with a CD4 count below 350 cells/mm3 in the last 6 months.
12. Patients with immunosuppression following organ or bone marrow transplants.
13. Patients exceeding 20 mg of prednisolone or equivalent dose of chronic systemic corticosteroids.
14. Patients who have received peramivir, laninamivir, oseltamivir, zanamivir, rimantadine, umifenovir or amantadine within 30 days prior to the predose examinations.
15. Patients who have received an investigational monoclonal antibody for a viral disease in the last year.
16. Patients with known creatinine clearance = 60 mL/min.
17. Patients who, in the opinion of the investigator, would be unlikely to comply with required study visits, self-assessments, and interventions

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s


The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Phase 3
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
11/01/2017
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
20/04/2018
Sample size
Target
Accrual to date
Final
2184
Recruitment in Australia
Recruitment state(s)

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
Shionogi
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
The primary objective of this study is to evaluate the efficacy of a single, oral dose of baloxavir marboxil compared with placebo by measuring the time to improvement of influenza symptoms in patients with influenza presenting within 48 hours of symptom onset.
Trial website
https://clinicaltrials.gov/study/NCT02949011
Trial related presentations / publications
Public notes
This record is viewable in the ANZCTR as it had previously listed Australia and/or New Zealand as a recruitment site, however these sites have since been removed

Contacts
Principal investigator
Name 0 0
Shionogi Clinical Trials Administrator Clinical Support Help Line
Address 0 0
Shionogi
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/study/NCT02949011