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HepatitisNCT05563961

A Partial Randomized, Single-blind or Open-label, Dose-escalation With Multiple-dose Design Study to Evaluate the Pharmacokinetics of Acetaminophen and Its Toxic Metabolites With Panadol® and SafeTynadol® in Healthy Volunteers

A study testing Panadol® and SafeTynadol® in people with Hepatitis and Pharmacology, run by Sinew Pharma Inc. at 1 site in Taiwan.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

To investigate and compare the possible response of Panadol® and SafeTynadol® formulations in healthy volunteers and the safety in SafeTynadol® dose-limiting hepatotoxicity. Read more about this study

Who is it for?
Ages 20 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Hepatitis, Pharmacology
What is being tested?
Panadol® and SafeTynadol®
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
48 participants
Where
1 siteTaiwan
Study dates
28 Oct 2022to Dec 2024
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Normal healthy adult subjects between 20-50 years of age.
  • Body weight within 80-120% of ideal body weight.
  • Male Ideal body weight = (height - 80) x 0.7
  • Female Ideal body weight = (height - 70) x 0.6
  • Acceptable medical history and physical examination including:
  • normal ECG results within six months prior to dosing.
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  • no particular clinical significance in general disease history within two months prior to dosing.
  • Acceptable clinical laboratory determinations without significant deviation from normal values within two months prior to dosing, which includes AST (SGOT), ALT (SGPT), r-GT, alkaline phosphatase, total bilirubin, albumin, glucose, BUN, uric acid, creatinine, total cholesterol, triglyceride (TG), PT(INR) and OGSP.
  • Acceptable hematology within two months prior to dosing, which includes hemoglobin, hematocrit, red blood cells, MCV, MCH, MCHC, white blood cells, differential white blood cells and platelets.
  • Acceptable urinalysis within two months prior to dosing, which includes pH, blood, glucose and protein.
  • Signed the written informed consent to participate in this study

Who cannot join

  • History or presence of alcohol abuse, defined as consumption of more than 210 mL of alcohol per week (the equivalent of 14 glasses of 120-mL wine or 14 cans of 350-mL beer), or other substance abuse within the prior two years.
  • A clinically significant disorder involving the allergy, cardiovascular, respiratory, renal, gastrointestinal/hepatic, immunologic, hematologic, endocrine or neurologic system(s) or psychiatric disease (as determined by the clinical investigator).
  • History of allergic response(s) to acetaminophen, mannitol, sucralose or related drugs.
  • History of clinically significant allergies including drug allergies or allergic bronchial asthma.
  • Evidence of chronic or acute infectious diseases.
  • Any clinically significant illness or surgery during the two month prior to dosing (as determined by the clinical investigator).
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  • Taking any drug known to induce or inhibit hepatic drug metabolism within one month prior to the beginning of the study.
  • Receiving any investigational drug within one month prior to dosing.
  • Taking any prescription medication or any nonprescription medication within two weeks prior to dosing.
  • Donating greater than 150 ml of blood within two months prior to dosing or donating plasma (e.g. plasmapheresis) within two weeks prior to dosing.
  • Consumption of caffeine, xanthine-containing products (i.e. coffee, tea, caffeine-containing sodas, colas and chocolate, etc.) and/or alcohol within 48 hours prior to days on which dosing is scheduled and during the periods when blood samples are being collected.
  • Any other medical reason as determined by the clinical investigator.
  • Subject is pregnant or breastfeeding.
  • Women of childbearing potential disagree to use an acceptable method of contraception (e.g., hormonal contraceptives, intrauterine device (IUD), barrier device or abstinence) throughout the study.

Trial locations and contacts

1 site in 1 country.

ChengHuei Mr. Hsiong, Vice President contact

+886-2-2788-5365

info@sinewpharma.com

PoKuan Mr. Chao, Research contact

+886-2-2788-5365

paikuan.chao@sinewpharma.com

Taiwan1 site, 1 recruiting
  • Tri-Service General Hospital

    Taipei, Neihu District, 114202

    ChengHuei Mr. Hsiong, Vice President, +886-2-2788-5365, info@sinewpharma.com

    PoKuan Mr. Chao, Research, +886-2-2788-5365, paikuan.chao@sinewpharma.com

    Recruiting

Other trials in Taiwan

About this study

To investigate and compare the possible response of Panadol® and SafeTynadol® formulations in healthy volunteers and the safety in SafeTynadol® dose-limiting hepatotoxicity.

Read the detailed description

Subjects will be randomized to Cohort 1 and cohort 2 in the study without crossover, Cohort 3-8 will be a dose-escalation manner. An effort will be made to balance the number of males and females in each cohort.

The first treatment cohort 1 and 2 will enroll 12 study volunteers. The volunteers of cohort 1 will receive Panadol® oral dosage form is 500 mg*2 tablets = 1,000 mg/ person every 6 hours daily of the multiple-dose treatment (Q6H, total 4 dosages, 8 tablets, 4,000 mg) (n = 6) and cohort 2 will receive SafeTynadol® oral dosage form is 500 mg*2 tablets = 1,000 mg/ person every 6 hours daily of the multiple-dose treatment (Q6H, total 4 dosages, 8 tablets, 4,000 mg) (n = 6) in an single-blind, randomized manner.

About one to three weeks later, cohorts 3-8 will be studied in an order of increasing dose of SafeTynadol® starting from 4,500 mg increment to a maximum dose of 12,000 mg of SafeTynadol® if the previous cohort do not meet the significant criteria of hepatotoxicity.

Cohort 3-8 will initially enroll 3 study volunteers. Volunteers will receive SafeTynadol® oral dosage form is 500 mg*3 tablets at first dosage (1500 mg) and 500 mg every 6 hours *2 tablets at second to fourth dosage (1000 mg) person every 6 hours daily of the multiple-dose treatment (Q6H, total 4 dosages, 9 tablets, 4,500 mg) at cohort 3 or Volunteers will receive SafeTynadol® oral dosage form is 500 mg*3 tablets at first and second dosage (1500 mg) and 500 mg every 6 hours *2 tablets at third and fourth dosage (1000 mg) person every 6 hours daily of the multiple-dose treatment (Q6H, total 4 dosages, 10 tablets, 5,000 mg) at cohort 4 or Volunteers will receive SafeTynadol® oral dosage form is 500 mg*3 tablets = 1,500 mg/ person every 6 hours daily of the multiple-dose treatment (Q6H, total 4 dosages, 12 tablets, 6,000 mg) at cohort 5 or Volunteers will receive SafeTynadol® oral dosage form is 500 mg*4 tablets = 2,000 mg/ person every 6 hours daily of the multiple-dose treatment (Q6H, total 4 dosages, 16 tablets, 8,000 mg) at cohort 6 or Volunteers will receive multiple doses of SafeTynadol® oral dosage form 500 mg every 6 hours * 5 tablets = 2,500 mg/person every 6 hours daily of the multiple-dose treatment (Q6H, 4 doses, 20 tablets, 10,000 mg) at Cohort 7 or Volunteers will receive multiple doses of SafeTynadol® oral dosage form 500 mg every 6 hours * 6 tablets = 3,000 mg/person every 6 hours daily of the multiple-dose treatment (Q6H, 4 doses, 24 tablets, 12,000 mg) at Cohort 8.

In Cohort 3-8, liver function tests will be administered two hours after the third dose to confirm that the hepatotoxicity criteria are not met before the fourth dose can be administered and Cohort 6-8 will perform liver function tests two hours after the second dose administered to confirm that the hepatotoxicity criteria are not met before the third dose can be administered. After 3 study volunteers to confirm that did not meet significant hepatotoxicity occurs then another 3 study volunteers were included, study will in a dose-escalation manner.

Except at admission blood blank sampling to Clinical Research Center on day 1 at 10:00, sampling will be obtained at the following times last post dose: 0 (prior to the last dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72, 96, 120, 144 and 168 hours after administration (21 samples) to assess acetaminophen concentrations and its metabolites concentrations. In addition, Cohort 1-8 blood sample for liver function test (ALT, AST, total bilirubinl) and PT(INR) will be obtained on day 1 (10:00) after admission, two hours after the third dose on day 2 and 24, 48, 72, 96, 120 and 144 hours after the last dose, Cohort 6-8 will increase the assessment of liver function tests two hours after the second dose. Blood samples for blood chemistry, PT(INR), hematology (CBC) and OGSP will be collected on 168 hours for post-study evaluation.

Being tested
Panadol®, SafeTynadol®
Keywords
acetaminophen, acute liver failure
Medical subject headings
Hepatitis, Liver Failure, Acute

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Panadol®Drug

    Reference Drug. Multiple-dose stage: Cohort 1, 2 tablets Q6H (total 4 dosages, 8 tablets or 4,000 mg)

  • SafeTynadol®Drug

    Test Drugs. Multiple-dose stage:

    Cohort 2, 2 tablets Q6H (total 4 dosages, 8 tablets or 4,000 mg) Cohort 3, 3 tablets at first dosage and 2 tablets at second to forth dosage Q6H (total 4 dosages, 9 tablets or 4,500 mg) Cohort 4, 3 tablets at first to second dosage and 2 tablets at third to forth dosage Q6H (total 4 dosages, 10 tablets or 5,000 mg) Cohort 5, 3 tablets Q6H (total 4 dosages, 12 tablets or 6,000 mg) Cohort 6, 4 tablets Q6H (total 4 dosages, 16 tablets or 8,000 mg) Cohort 7, 5 tablets Q6H (total 4 dosages, 20 tablets or 10,000 mg) Cohort 8, 6 tablets Q6H (total 4 dosages, 24 tablets or 12,000 mg)

Study groups in NCT05563961
Study groupRoleWhat they receive
PanadolActive comparator• Cohort 1- 6 Subjects to receive oral Panadol® 4,000 mg (2 tablets Q6H, 4 dosages, 8 tablets or 4,000 mg)
Receives: Drug: Panadol®
SafeTynadol®Experimental* Cohort 2- 6 Subjects to receive oral SafeTynadol® 4,000 mg (2 tablets Q6H, 4 dosages, 8 tablets or 4,000 mg) * Cohort 3- 6 Subjects to receive oral SafeTynadol® 4,500 mg (3 tablets at first dosage and 2 tablets at second to forth dosage Q6H, 4 dosages, 9 tablets or 4,500 mg) * Cohort 4- 6 Subjects to receive oral SafeTynadol® 5,000 mg (3 tablets at first to second dosage and 2 tablets at third to forth dosage Q6H, 4 dosages, 10 tablets or 5,000 mg) * Cohort 5- 6 Subjects to receive oral SafeTynadol® 6,000 mg (3 tablets Q6H, 4 dosages, 12 tablets or 6,000 mg) * Cohort 6- 6 Subjects to receive oral SafeTynadol® 8,000 mg (4 tablets Q6H, 4 dosages, 16 tablets or 8,000 mg) * Cohort 7- 6 Subjects to receive oral SafeTynadol® 10,000 mg (5 tablets Q6H, 4 dosages, 20 tablets or 10,000 mg) * Cohort 8- 6 Subjects to receive oral SafeTynadol® 12,000 mg (6 tablets Q6H, 4 dosages, 24 tablets or 12,000 mg)
Receives: Drug: SafeTynadol®

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. ALT level within study periods

    Measured: Day 1-9

Secondary outcomes (10)
  1. Incidence of peak ALT elevations > 1X ULN within study periods

    Measured: Day 1-9

  2. Incidence of peak ALT elevations > 2X ULN within study periods

    Measured: Day 1-9

  3. Incidence of peak ALT elevations > 3X ULN within study periods

    Measured: Day 1-9

  4. Incidence of peak ALT elevations > 5X ULN within study periods

    Measured: Day 1-9

  5. Incidence of peak ALT elevations > 8X ULN within study periods

    Measured: Day 1-9

  6. Incidence of total bilirubin > 2.5mg/dL within study periods

    Measured: Day 1-9

  7. Incidence of PT (INR) > 1.25 within study periods

    Measured: Day 1-9

  8. Hepatic failure rate

    Hepatic failure rate (hepatic encephalopathy, ascites, total bilirubin >2.5mg/dL, PT(INR) >1.25 , or liver transplantation) within study periods

    Measured: Day 1-9

  9. Free plasma acetaminophen-cysteine (AAP-Cys) and AAP-Cys adducts

    The time-interval weighted area under the curve (AUC) of free plasma acetaminophen-cysteine (AAP-Cys) and AAP-Cys adducts within study periods

    Measured: Day 1-9

  10. The time-interval weighted area under the curve (AUC) of ALT level within study periods

    Measured: Day 1-9

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Oct 2022
  2. Study start28 Oct 2022
  3. Primary completionJun 2024 (estimated)
  4. Study completionDec 2024 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Non-randomised
Intervention model
Sequential
Masking
Single blind
Who is masked
Participant
Enrolment
48 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05563961
Sponsor's protocol ID
Oral AAP-002
Status last verified
Feb 2024
First submitted
27 Sep 2022
Last updated
27 Mar 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A study testing Panadol® and SafeTynadol® in people with Hepatitis and Pharmacology, run by Sinew Pharma Inc. at 1 site in Taiwan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 11 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 27 Mar 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact ChengHuei Mr. Hsiong, Vice President (+886-2-2788-5365, info@sinewpharma.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

ALT level within study periods (time frame: Day 1-9). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Mar 2024; AzTrials last refreshed its copy on 27 Oct 2026.

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