Study to Investigate the Efficacy and Safety of Apomivir®
A Prospective, Randomized, Double-blind, Parallel, Placebo-controlled, Multi-center Study to Investigate the Efficacy and Safety of Apomivir® in Relieving Influenza Symptoms
1 other identifier
interventional
196
1 country
1
Brief Summary
Apomivir® is extracted from a proprietary spirulina strain, FEM-101, a kind of blue cyanobacterium with patented freeze-thaw lysis and extraction method. According to the preclinical studies, Apomivir® have been proven to have excellent broad-spectrum anti-viral ability, especially for seasonal influenza viruses (Influenza virus A and B) that may cause illness, paralysis and even death, especially in children and elderly people. This phase II study is designed to evaluate the efficacy and safety of Apomivir® (120 mg b.i.d.) in subjects with seasonal influenza.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started May 2026
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 30, 2012
CompletedFirst Posted
Study publicly available on registry
September 3, 2012
CompletedStudy Start
First participant enrolled
May 31, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
May 31, 2027
Study Completion
Last participant's last visit for all outcomes
December 31, 2027
May 14, 2025
May 1, 2025
1 year
August 30, 2012
May 12, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
To evaluate the safety profile of Apomivir® treatment (120 mg b.i.d.).
Safety endpoints: 1. Change in laboratory data 2. Adverse events 3. Serious adverse events (SAE)
from day1 to day 29, the entire treatment period and follow-up period.
To evaluate the time to resolution of influenza symptoms defined as all flu symptom scores ≤ 1 after initiation of study treatment.
The time to resolution of influenza symptom is defined as the duration from the study drug initiation to all flu symptom scores ≤ 1. Subject who is withdrawn prior to the resolution of influenza symptom is censored at the last known time point.
from day 1 to day 29, depends on the time to sympton resolution of individual subjects.
Secondary Outcomes (6)
Change in virus titer.
Day 3, 6 compared to baseline (Day 1)
Time to achieve afebrile
after initiation of study treatment
Severity of influenza symptom score during study period
twice daily from Day 1 to Day 6 and once daily until Day 29 or completely cured
Level of interference on daily activity and time to alleviation of the interference during study period
twice daily from Day 1 to Day 6 and once daily until Day 29 or completely cured
Proportion of rescue medication used for fever or influenza symptoms during study period
twice daily from Day 1 to Day 6 and once daily until Day 29 or completely cured
- +1 more secondary outcomes
Study Arms (2)
Control Group
PLACEBO COMPARATORPlacebo 1 capsule twice daily. All subjects will be treated for 5 days, and all drugs should be taken orally after meal
Study Group
EXPERIMENTALApomivir® 1 capsule twice daily. All subjects will be treated for 5 days, and all drugs should be taken orally after meal.
Interventions
Study Group: Apomivir® 1 capsule twice daily. All subjects will be treated for 5 days, and all drugs should be taken orally after meal.
Control Group: Placebo 1 capsule twice daily. All subjects will be treated for 5 days, and all drugs should be taken orally after meal.
Eligibility Criteria
You may qualify if:
- Females and males aged between 20 and 65
- Presumptive diagnosis of influenza based on the following clinical characteristics:
- Present at least one respiratory symptom (e.g. cough, nasal obstruction, sore throat) and at least one constitutional symptom other than fever (e.g. fatigue, headache, myalgias) of less than 48-hour duration
- Positive for influenza A or B (nasopharyngeal/throat swab - rapid test)
- Able and willing to comply with the study procedure and give written informed consent
You may not qualify if:
- Female who is pregnant/lactating or planning to be pregnant, or female of childbearing potential\* who is not using medically recognized method of contraception
- \* Other than those who have been surgically sterilized (defined as having undergone hysterectomy or bilateral oophorectomy or bilateral salpingectomy; tubal ligation alone is not considered sufficient) or one year post-menopausal
- Subject with chronic pulmonary diseases or critical condition or already developed severe respiratory distress with hypoxaemia on presentation
- Subject with a history of non-febrile convulsions, neuromuscular disorders or cognitive dysfunction that may compromise respiratory secretions, or who are currently receiving anticonvulsive agents
- Subject with clinically important illness, malignancies, systemic infection, other medical or psychiatric condition which places the subject at unacceptable risk to participate in the study or confounds the ability to interpret data from the study
- Subject with significant abnormal laboratory findings (hemoglobin level \< 9.0 g/dL, WBC \< 4000/mm3, platelet count \< 100,000/mm3, ALT or AST \> 2.5 x upper limit of normal (ULN), or estimated creatinine clearance \< 30 mL/min within 4 weeks prior to baseline)
- Subject who are currently receiving immunosuppressive therapy,
- Subject has taken daily supplement(s) containing blue agar within 1 month prior to screening, or any other medication that may affect the study results
- Known hypersensitivity to any ingredients in Apomivir® or other blue agar
- Use of any investigational product within 1 month prior to screening
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
China Medical University Hospital
Taichung, 40447, Taiwan
Related Publications (5)
Lynch G, Low L, Li S, Sloane A, Adams S, Parish C, Kemp B, Cunningham AL. Sulfated polyanions prevent HIV infection of lymphocytes by disruption of the CD4-gp120 interaction, but do not inhibit monocyte infection. J Leukoc Biol. 1994 Sep;56(3):266-72. doi: 10.1002/jlb.56.3.266.
PMID: 7521897BACKGROUNDShih CM, Cheng SN, Wong CS, Kuo YL, Chou TC. Antiinflammatory and antihyperalgesic activity of C-phycocyanin. Anesth Analg. 2009 Apr;108(4):1303-10. doi: 10.1213/ane.0b013e318193e919.
PMID: 19299804BACKGROUNDGonzalez R, Rodriguez S, Romay C, Ancheta O, Gonzalez A, Armesto J, Remirez D, Merino N. Anti-inflammatory activity of phycocyanin extract in acetic acid-induced colitis in rats. Pharmacol Res. 1999 Jan;39(1):55-9.
PMID: 10366332BACKGROUNDShih SR, Tsai KN, Li YS, Chueh CC, Chan EC. Inhibition of enterovirus 71-induced apoptosis by allophycocyanin isolated from a blue-green alga Spirulina platensis. J Med Virol. 2003 May;70(1):119-25. doi: 10.1002/jmv.10363.
PMID: 12629652BACKGROUNDReagan-Shaw S, Nihal M, Ahmad N. Dose translation from animal to human studies revisited. FASEB J. 2008 Mar;22(3):659-61. doi: 10.1096/fj.07-9574LSF. Epub 2007 Oct 17.
PMID: 17942826BACKGROUND
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Liang-Wen Hang, MD
China Medical University Hospital
- STUDY DIRECTOR
YI-HSIANG CHEN
Far East Bio-Tec Co., Ltd
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 30, 2012
First Posted
September 3, 2012
Study Start (Estimated)
May 31, 2026
Primary Completion (Estimated)
May 31, 2027
Study Completion (Estimated)
December 31, 2027
Last Updated
May 14, 2025
Record last verified: 2025-05