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Hepatitis B, ChronicPhase 1NCT02956850

A Study in Healthy Volunteers and in Participants With Chronic Hepatitis B to Assess Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Single and Multiple Doses of RO7020531

A Phase 1 study testing RO7020531 in people with Hepatitis B, Chronic, run by Hoffmann-La Roche at 18 sites in 8 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record

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Trial summary

This sponsor-open, investigator- and participant-blinded, multi-center study will assess the safety, tolerability, pharmacokinetics and pharmacodynamics of RO7020531 in healthy participants and in participants with chronic hepatitis B. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Hepatitis B, Chronic
What is being tested?
RO7020531
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
160 participants
Where
18 sitesin 8 countries
Study dates
12 Dec 2016to 15 Jun 2021
Phase
Phase 1

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 18 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Part 1: SAD and MAD in Healthy Volunteers
  • Non-smokers, or use of less than (<) 10 cigarettes (or equivalent nicotine-containing product) per day
  • Negative Anti-Nuclear Antibody (ANA) test; or positive with dilutions not greater than 1:40 and with no associated history or symptoms of potential connective tissue disease or other immune-mediated diseases
  • Part 2: CHB Participants
  • CHB infection (positive test for Hepatitis B surface antigen [HBsAg] for more than 6 months prior to randomization)
  • For Cohort 1, 2, 3 and 4: HBsAg detectable at screening
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  • For Cohort 1, 2 and 3: Hepatitis B virus deoxyribose nuclic acid (HBV DNA) < 90 international unit per milliliter (IU/mL) for at least 6 months prior to randomization; HBV DNA < 90 IU/mL at screening by Roche Cobas assay
  • For Cohort 4: HBV DNA at screening >= 2 × 10*4 IU/mL for HBeAg positive and >= 2 x 10*3 IU/mL for hepatitis B e antigen (HBeAg) negative participants
  • For Cohort 1, 2 and 3: Alanine amino transferase (ALT) =<1.5 × upper limit of normal (ULN) during the 6 months prior to randomization confirmed by two measurements separated by at least 14 days; ALT at screening =< 1.5 × ULN.
  • For Cohort 4: ALT and aspartate aminotransferase (AST) at screening and Day -1 visit: =< 5 × ULN.
  • Negative ANA test; or positive with dilutions not greater than 1:40 and with no associated history or symptoms of potential connective tissue disease or other immune-mediated diseases
  • Liver biopsy, Fibroscan® or equivalent elastography test obtained within 6 months prior to randomization demonstrating liver disease consistent with chronic HBV infection with absence of cirrhosis and absence of extensive bridging fibrosis (cirrhosis or extensive bridging fibrosis are defined as greater than or equal to (>/=) Metavir 3, recommended cut-off for Fibroscan 8.5 kilopascals [kPa])
  • For Cohort 1, 2 and 3: On treatment with tenofovir, entecavir, adefovir, or telbivudine, either as single agents or in combination, for at least 6 months
  • For Cohort 4: Hepatitis B virus (HBV) treatment naïve or not on any anti-HBV treatment for the past 6 months

Who cannot join

  • Part 1: SAD and MAD in Healthy Volunteers
  • History of immunologically mediated disease (e.g., inflammatory bowel disease, idiopathic thrombocytopenic purpura, lupus erythematosus, autoimmune haemolytic anemia, scleroderma, severe psoriasis, rheumatoid arthritis, multiple sclerosis, or any other autoimmune disease); clinically significant psychiatric disease, acute infection (e.g., influenza), gastrointestinal (GI) disease (including inflammatory bowel disease, peptic ulcer disease, GI hemorrhage)
  • History of having received or currently receiving any systemic anti-neoplastic (including radiation) or immune-modulatory treatment (including systemic oral or inhaled corticosteroids, IFN or pegylated interferon [PEG-IFN]) within the 8 weeks prior to the first dose of study drug or the expectation that such treatment will be needed at any time during the study
  • Any clinically significant concomitant disease or condition that could interfere with, or for which the treatment of might interfere with, the conduct of the study, or that would, in the opinion of the Investigator, pose an unacceptable risk to the participant in this study
  • Positive Hepatitis A virus antibody (HAV Ab IgM), HBsAg, Hepatitis C antibody (HCV Ab), or positive for human immunodeficiency virus (HIV) at screening
  • History of clinically significant thyroid disease; also, participants with clinically significant elevated thyroid-stimulating hormone (TSH) concentrations at screening
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  • Positive results for anti-mitochondrial antibody (AMA), anti-smooth muscle antibody (ASMA) or thyroid peroxidase antibody
  • Part 2: CHB Participants
  • History of liver cirrhosis
  • History or other evidence of bleeding from esophageal varices
  • Decompensated liver disease (e.g., Child-Pugh Class B or C clinical classification or clinical evidence such as ascites or varices)
  • History or other evidence of a medical condition associated with chronic liver disease other than HBV infection (e.g., hemochromatosis, autoimmune hepatitis, alcoholic liver disease, toxin exposure, thalassemia, nonalcoholic steato-hepatitis, etc.). A clinical diagnosis of fatty liver is allowed provided that non alcoholic steatohepatitis (NASH) has been excluded by liver biopsy.
  • Documented history or other evidence of metabolic liver disease within one year of randomization
  • Positive test for Hepatitis A virus (IgM anti-HAV), Hepatitis C virus (HCV), Hepatitis D virus, Hepatitis E virus (HEV), or human immunodeficiency virus (HIV).
  • History of or suspicion of hepatocellular carcinoma or alpha fetoprotein >/=13 nanograms per milliliter (ng/mL) at screening
  • History of immunologically mediated disease (e.g., inflammatory bowel disease, idiopathic thrombocytopenic purpura, lupus erythematosus, autoimmune haemolytic anemia, scleroderma, severe psoriasis, rheumatoid arthritis, multiple sclerosis, or any other autoimmune disease); clinically significant psychiatric disease; acute infection (e.g., influenza); GI disease (including inflammatory bowel disease, peptic ulcer disease, GI hemorrhage, or history of pancreatitis); clinically significant cardiovascular (including postural hypotension), endocrine, renal, ocular, pulmonary or neurological disease.
  • History of having received or currently receiving any systemic anti-neoplastic (including radiation) or immune-modulatory treatment (including systemic oral or inhaled corticosteroids,IFN or PEG-IFN) within the 8 weeks prior to the first dose of study drug or the expectation that such treatment will be needed at any time during the study
  • Cohort 4: Concurrent HBV treatments
  • History of organ transplantation
  • Clinically significant thyroid disease; also, participants with clinically significant elevated TSH concentrations at screening
  • Positive results for AMA, ASMA or thyroid peroxidase antibody

Trial locations and contacts

18 sites in 8 countries.

18 sites in 8 countries

Taiwan4 sites
  • National Cheng Kung University Hospital

    Tainan, 70457

  • Taipei Veterans General Hospital

    Taipei, 112

  • Chang Gung Memorial Hospital

    Taoyuan, 333

  • Taichung Veterans General Hospital

    Xitun Dist., 40705

Other trials in Taiwan

Italy3 sites
  • ASST PAPA GIOVANNI XXIII; Epatologia e gastroenterologia pediatrica e dei trapianti

    Bergamo, Lombardy, 24127

  • Azienda Ospedaliero Universitaria Di Modena Policlinico; U.O. Farmacia

    Modena, Emilia-Romagna, 41124

  • Medicina Generale ed Epatologia (Humanitas-Rozzano)

    Rozzano, Lombardy, 20089

Other trials in Italy

Thailand3 sites
  • King Chulalongkorn Memorial Hospital

    Bangkok, 10330

  • Siriraj Hospital

    Bangkok, 10700

  • Maharaj Nakorn Chiang Mai Hospital

    Chiang Mai, 50200

Other trials in Thailand

Bulgaria2 sites
  • Gastroenterology department, Second clinic of internal diseases

    Sofia, 1407

  • COMAC Medical; Clinical Research Unit for Phase I

    Sofia, 1612

Other trials in Bulgaria

Hong Kong2 sites
  • Queen Mary Hospital

    Hong Kong, 999077

  • The Chinese University of Hong Kong

    Shatin, 123456

Other trials in Hong Kong

United Kingdom2 sites
  • Royal Liverpool University Hospital

    Liverpool, L7 8XP

  • King College Hospital NHS Foundation Trust

    London, SE5 9RS

Other trials in United Kingdom

Netherlands1 site
  • Academisch Medisch Centrum Universiteit Amsterdam; Dermatology and VU University Medical Center

    Amsterdam, 1100 DD

Other trials in Netherlands

New Zealand1 site
  • Auckland Clinical Studies

    Auckland, 1142

Other trials in New Zealand

About this study

Official title: A Phase I, Sponsor-Open, Investigator-Blinded, Subject-Blinded, Multi-Center, Placebo-Controlled Study to Evaluate Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Oral Administration of RO7020531: (1). Single and Multiple Ascending Doses in Healthy Male and Female Subjects; (2). 6-week Treatment of Patients With Chronic Hepatitis B Virus Infection

This sponsor-open, investigator- and participant-blinded, multi-center study will assess the safety, tolerability, pharmacokinetics and pharmacodynamics of RO7020531 in healthy participants and in participants with chronic hepatitis B. Part I will be conducted in two portions: Single Ascending Dose (SAD) and Multiple Ascending Dose (MAD) which will include only healthy volunteers. Part II will commence after completion of the MAD portion of Part I and will include only Chronic Hepatitis B (CHB) participants.

Being tested
Placebo, RO7020531
Medical subject headings
Hepatitis B, Chronic

What participants receive

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

  • PlaceboOther

    Placebo matching to RO7020531 will be administered as per schedule specified in the respective arm.

  • RO7020531Drug

    RO7020531 will be administered as per schedule specified in the respective arm.

Study groups in NCT02956850
Study groupRoleWhat they receive
Part I: SAD in Healthy VolunteersExperimentalHealthy volunteers will receive single dose of RO7020531 or matching placebo orally on Day 1 of each cohort. A planned dose-escalation sequence for SAD is 3 milligrams (mg), 10 mg, 20 mg, 40 mg, 60 mg, 100 mg, 140 mg, and 170 mg.
Receives: Other: Placebo; Drug: RO7020531
Part I: MAD in Healthy VolunteersExperimentalHealthy volunteers will receive RO7020531 (100 mg, 140 mg, and 170 mg as selected based on safety, pharmacokinetic (PK) and pharmacodynamic (PD) data of SAD cohorts) or matching placebo orally every other day (QOD) from Day 1 through to Day 13.
Receives: Other: Placebo; Drug: RO7020531
Part II: CHB ParticipantsExperimentalCHB participants will receive RO7020531 (150 mg and 170 mg as selected based on safety, PK and PD data of MAD cohorts) or matching placebo orally QOD from Day 1 through to Day 41, unless in Cohort 4 in case of once a week (QW) dosing as dose modification.
Receives: Other: Placebo; Drug: RO7020531

What is being measured

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

  1. Part 1: Percentage of SAD Participants With Adverse Events (AEs)

    An AE is any untoward medical occurrence in a clinical investigation healthy volunteer (HV)/participant administered a pharmaceutical product, regardless of causal attribution. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product, any new disease or exacerbation of an existing disease (a worsening in the character, frequency, or severity of a known condition and recurrence of an intermittent medical condition (e.g., headache) not present at baseline.

    Measured: From randomization up to Day 29

  2. Part 1: Percentage of MAD Participants With AEs

    An AE is any untoward medical occurrence in a clinical investigation healthy volunteer (HV)/participant administered a pharmaceutical product, regardless of causal attribution. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product, any new disease or exacerbation of an existing disease (a worsening in the character, frequency, or severity of a known condition and recurrence of an intermittent medical condition (e.g., headache) not present at baseline.

    Measured: From randomization up to Day 41

  3. Part 2: Percentage of Chronic Hepatitis B Participants With AEs

    An AE is any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product, regardless of causal attribution. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product, any new disease or exacerbation of an existing disease (a worsening in the character, frequency, or severity of a known condition and recurrence of an intermittent medical condition (e.g., headache) not present at baseline.

    Measured: From randomization up to Week 12

  4. Part 1: Percentage of SAD Participants With Laboratory Abnormalities Based on Hematology, Clinical Chemistry, Coagulation and Urinalysis Test Results

    For all laboratory parameters included, there exists a Roche predefined standard reference range. Laboratory values falling outside this standard reference range were labeled "H" for high or "L" for low in HV/participant listings of laboratory data.

    Measured: From randomization up to Day 8

  5. Part 1: Percentage of MAD Participants With Laboratory Abnormalities Based on Hematology, Clinical Chemistry, Coagulation and Urinalysis Test Results

    For all laboratory parameters included, there exists a Roche predefined standard reference range. Laboratory values falling outside this standard reference range were labeled "H" for high or "L" for low in HV/participant listings of laboratory data.

    Measured: From randomization up to Day 20

  6. Part 2: Percentage of Chronic Hepatitis B Participants With Laboratory Abnormalities Based on Hematology, Clinical Chemistry, Coagulation and Urinalysis Test Results

    For all laboratory parameters included, there exists a Roche predefined standard reference range. Laboratory values falling outside this standard reference range were labeled "H" for high or "L" for low in HV/participant listings of laboratory data.

    Measured: From randomization up to Week 12

  7. Part 1: Percentage of SAD Participants With Abnormalities in Electrocardiograph (ECG) Parameters

    Triplicate 12-lead ECGs were obtained after the participant has been in a supine position for at least 10 minutes. Clinically significant RO7020531-related changes included confirmation of mean QTc 500 milliseconds (msec) or 60 msec longer than the pre-dose baseline.

    Measured: From randomization up to Day 8

  8. Part 1: Percentage of MAD Participants With Abnormalities in ECG Parameters

    Triplicate 12-lead ECGs were obtained after the participants has been in a supine position for at least 10 minutes. Clinically significant RO7020531-related changes included confirmation of mean QTc 500 msec or 60 msec longer than the pre-dose baseline.

    Measured: From randomization up to Day 20

  9. Part 2: Percentage of Chronic Hepatitis B Participants With Abnormalities in ECG Parameters

    Triplicate 12-lead ECGs were obtained after the participant has been in a supine position for at least 10 minutes. Clinically significant RO7020531-related changes included confirmation of mean QTc 500 msec or 60 msec longer than the pre-dose baseline.

    Measured: From randomization up to Week 12

  10. Part 1: Percentage of SAD Participants With Abnormalities in Vital Signs

    Vital signs include blood pressure, pulse rate, respiratory rate and body temperature. Blood pressure, respiratory rate and pulse rate were obtained after the participant had been in a supine or sitting position for at least 5 minutes. Blood pressure measurement were performed in triplicate (can be as short as 20 second to 1 minute interval between measurements).

    Measured: From randomization up to Day 8

  11. Part 1: Percentage of MAD Participants With Abnormalities in Vital Signs

    Vital signs include blood pressure, pulse rate, respiratory rate and body temperature. Blood pressure, respiratory rate and pulse rate were obtained after the participant had been in a supine or sitting position for at least 5 minutes. Blood pressure measurement were performed in triplicate (can be as short as 20 second to 1 minute interval between measurements).

    Measured: From randomization up to Day 20

  12. Part 2: Percentage of Chronic Hepatitis B Participants With Abnormalities in Vital Signs

    Vital signs include blood pressure, pulse rate, respiratory rate and body temperature. Blood pressure, respiratory rate and pulse rate were obtained after the participant had been in a supine or sitting position for at least 5 minutes. Blood pressure measurement were performed in triplicate (can be as short as 20 second to 1 minute interval between measurements).

    Measured: From randomization up to Week 12

Secondary outcomes (19)
  1. Part 1: Maximum Observed Plasma Concentration (Cmax) of RO7020531 and Its Metabolites Including RO7011785, RO7018822 and RO7033805: SAD and MAD

    Measured: SAD: Predose and 0.5, 1, 1.5 , 2, 3, 4, 6,8, 12,18, and 24hours post dose on Day 1; MAD: Predose and 0.25, 0.5, 1, 1.5, 2 , 3, 4, 6, 8, 12,18, and 24 hours post dose on Days 1 and 13

  2. Part 2: Cmax of RO7020531 and Its Metabolites Including RO7011785, RO7018822 and RO7033805

    Measured: Predose and 0.25, 1, 2, 4, 6, 8, and 24 hours post dose on Days 1 and 41

  3. Part 1: Time to Maximum Observed Plasma Concentration (Tmax) of RO7020531 and Its Metabolites Including RO7011785, RO7018822 and RO7033805: SAD and MAD

    Measured: SAD: Predose and 0.5, 1, 1.5 , 2, 3, 4, 6,8, 12,18, and 24hours post dose on Day 1; MAD: Predose and 0.25, 0.5, 1, 1.5, 2 , 3, 4, 6, 8, 12,18, and 24 hours post dose on Days 1 and 13

  4. Part 2: Tmax of RO7020531 and Its Metabolites Including RO7011785, RO7018822 and RO7033805

    Measured: Predose and 0.25, 1, 2, 4, 6, 8, and 24 hours post dose on Days 1 and 41

  5. Part 1: Area Under the Plasma Concentration Versus Time Curve Extrapolated to Infinity (AUCinf) of RO7020531 and Its Metabolites Including RO7011785, RO7018822 and RO7033805: SAD and MAD

    Measured: SAD: Predose and 0.5, 1, 1.5 , 2, 3, 4, 6,8, 12,18, and 24hours post dose on Day 1; MAD: Predose and 0.25, 0.5, 1, 1.5, 2 , 3, 4, 6, 8, 12,18, and 24 hours post dose on Days 1 and 13

  6. Part 2: AUCinf of RO7020531 and Its Metabolites Including RO7011785, RO7018822 and RO7033805

    Measured: Predose and 0.25, 1, 2, 4, 6, 8, and 24 hours post dose on Days 1 and 41

  7. Part 1: Area Under the Plasma Concentration Versus Time Curve up to the Last Measurable Concentration (AUClast) of RO7020531 and Its Metabolites Including RO7011785, RO7018822 and RO7033805: SAD and MAD

    Measured: SAD: Predose and 0.5, 1, 1.5 , 2, 3, 4, 6,8, 12,18, and 24hours post dose on Day 1; MAD: Predose and 0.25, 0.5, 1, 1.5, 2 , 3, 4, 6, 8, 12,18, and 24 hours post dose on Days 1 and 13

  8. Part 2: AUClast of RO7020531 and Its Metabolites Including RO7011785, RO7018822 and RO7033805

    Measured: Predose and 0.25, 1, 2, 4, 6, 8, and 24 hours post dose on Days 1 and 41

  9. Part 1: Half Life (t1/2) of RO7020531 and Its Metabolites Including RO7011785, RO7018822 and RO7033805: SAD and MAD

    Measured: SAD: Predose and 0.5, 1, 1.5 , 2, 3, 4, 6,8, 12,18, and 24hours post dose on Day 1; MAD: Predose and 0.25, 0.5, 1, 1.5, 2 , 3, 4, 6, 8, 12,18, and 24 hours post dose on Days 1 and 13

  10. Part 2: t1/2 of RO7020531 and Its Metabolites Including RO7011785, RO7018822 and RO7033805

    Measured: Predose and 0.25, 1, 2, 4, 6, 8, and 24 hours post dose on Days 1 and 41

  11. Part 1: Total Amount of RO7020531, RO7011785, RO7018822 and RO7033805 in Urine: SAD

    Total amount of the study drug and metabolites recovered in urine was reported.

    Measured: 0 to 24 hrs Postdose on Day 1

  12. Part 1:Mean Concentration of Interferon Alpha (IFN-alpha): SAD and MAD

    Mean concentrations of IFN-alpha for SAD were calculated following single-dose and for MAD it was calculated following multiple doses. The standard deviation (SD) presented is actually the log transformed geometric standard deviation.

    Measured: SAD: Predose, 2, 6, 12 and 24 hrs Postdose; MAD: Predose, 2, 6, 12, and 24 hrs Postdose on Day 1; Predose, 2, 6 and 24 hrs Postdose on Days 3, 5, 7, 13 and 20

  13. Part 2: Mean Concentration of IFN-alpha

    Mean concentrations of IFN-alpha for Part 2 were calculated following multiple doses. The SD presented is actually the log transformed geometric standard deviation.

    Measured: Predose, 6, 8 and 24 hrs Postdose on Day 1; Predose, 4-6, 24 hrs Postdose on Days 3, 7 and 21; Predose, 6, 24 hrs Postdose on Day 41

  14. Part 1: Mean Fold Change From Baseline in Cytokine Markers: SAD and MAD

    Cytokines markers include Chemokine (C-X-C Motif) Ligand 10 (IP-10), Interleukin 6 (IL-6), Interleukin 10 (IL-10), Interleukin 12 p40 (IL-12 p40), Neopterin, Tumor Necrosis Factor-Alpha (TNF-alpha). The SD presented is actually the log transformed geometric standard deviation.

    Measured: SAD: Predose, 2, 6, 12, 24, 48 (only Neopterin) and 96 hrs (only Neopterin) Postdose; MAD: Predose, 2, 6, 12, and 24 hrs Postdose on Day 1; Predose, 2, 6 and 24 hrs Postdose on Days 3, 5, 7, 13 and 20

  15. Part 2: Mean Fold Change From Baseline in Cytokine Markers

    Cytokines markers included IP- 10, IL- 6, IL-1 10, IL-12 p40, Neopterin and TNF -alpha. The SD presented is actually the log transformed geometric standard deviation.

    Measured: Predose, 6, 8 and 24 hrs Postdose on Day 1; Predose, 4-6, 24 hrs Postdose on Days 3, 7 and 21; Predose, 6, 24 hrs Postdose on Day 41

  16. Part 1:Mean Fold Change From Baseline in Markers of Transcriptional Responses: SAD and MAD

    Markers of transcriptional responses includes messenger ribonucleic acid interferon-stimulated gene 15(mRNA ISG15), messenger RNA oligoadenylate synthetase 1 (mRNA OAS1), messenger RNA myxovirus resistance 1 gene (mRNA MX-1), messenger RNA Toll-like receptor (mRNA TLR7). The SD presented is actually the log transformed geometric standard deviation.

    Measured: SAD: Predose, 2, 6, 12 and 24 Postdose; MAD: Predose, 2, 6, 12, and 24 hrs Postdose on Day 1; Predose, 2, 6 and 24 hrs Postdose on Days 3, 5, 7, 13 and 20

  17. Part 2: Mean Fold Change From Baseline in Markers of Transcriptional Responses

    Transcriptional markers include mRNA ISG15, mRNA OAS1, mRNA MX-1, mRNA TLR7. The SD presented is actually the log transformed geometric standard deviation.

    Measured: Predose, 6, 8, 24 hrs postdose on Day 1; Predose, 4-6, 24 hrs postdose on Days 3, 7, 21; Predose, 6, 24 hrs postdose on Day 41

  18. Effect of RO7020531 Dosing on ECG Parameters (PR [PQ], QRS, QT, QTcF in Miliseconds [ms]) Using Exposure-response Analysis: SAD and MAD

    Measured: SAD: Predose, 0.5, 1, 2, 4, 6, 12, 24 and 48 hrs Post dose on Day 1; MAD: Predose, 0.5, 1,2,4 and 12 hrs Postdose on Day 1 and 13; Predose, 2 and 6 hrs Postdose on Day 3, Predose, 6 and 24 hrs Postdose on Day , 7, 9, and 11

  19. Part 2: Plasma Concentrations of Tenofovir, Tenofovir Alafenamide, Entecavir, Adefovir and Telbivudine

    Adefovir was not administered to any participants in the study. Hence, no data could be collected for plasma concentration of adefovir. As participants in each cohort received different NUCs the data for Cohorts 1, 2 and 3 have been reported separately.

    Measured: Pre-dose and 2-4 hours post-dose on Day 1, Day 21 and Day 41

Timeline

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

  1. First posted7 Nov 2016 (estimated)
  2. Study start12 Dec 2016
  3. Primary completion15 Jun 2021
  4. Study completion15 Jun 2021

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 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
160 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02956850
Sponsor's protocol ID
NP39305
Other IDs
2016-003723-38, 2016
Status last verified
Feb 2024
First submitted
3 Nov 2016
Last updated
8 Feb 2024

Publications

  • Jiang Q, Zhang Y, Duan D, Retout S, Upmanyu R, Glavini K, Triyatni M, Zhu Y, Grippo JF, Jin Y. Using exploratory pharmacokinetic and pharmacodynamic analyses to predict the probability of flu-like symptoms in healthy volunteers and patients with chronic hepatitis B treated with the toll-like receptor 7 agonist ruzotolimod. Clin Transl Sci. 2024 Aug;17(8):e13896. doi: 10.1111/cts.13896.

    PubMed 39119977
  • Yuen MF, Balabanska R, Cottreel E, Chen E, Duan D, Jiang Q, Patil A, Triyatni M, Upmanyu R, Zhu Y, Canducci F, Gane EJ. TLR7 agonist RO7020531 versus placebo in healthy volunteers and patients with chronic hepatitis B virus infection: a randomised, observer-blind, placebo-controlled, phase 1 trial. Lancet Infect Dis. 2023 Apr;23(4):496-507. doi: 10.1016/S1473-3099(22)00727-7. Epub 2022 Dec 9.

    PubMed 36509100

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