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A Study of ARC-521 Injection in Normal Adult Volunteers and Patients With Chronic Hepatitis B (CHB)

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ClinicalTrials.gov Identifier: NCT02797522
Recruitment Status : Terminated (Company decision to discontinue trial)
First Posted : June 13, 2016
Results First Posted : September 25, 2018
Last Update Posted : September 25, 2018
Sponsor:
Information provided by (Responsible Party):
Arrowhead Pharmaceuticals

Brief Summary:

Normal healthy volunteer (NHV) participants will enroll sequentially into a total of 6 escalating dose levels (6 subjects per dose level), randomized to receive a single dose of ARC-521 Injection or placebo. The maximum study duration for NHVs is approximately 21 weeks.

Hepatitis B e Antigen (HBeAg)-negative participants with (CHB) will enroll sequentially into 3 dose levels (8 patients per dose level) to receive multiple doses of open label ARC-521 Injection. For each CHB participant the maximum study duration is approximately 37 weeks.


Condition or disease Intervention/treatment Phase
Hepatitis B Drug: ARC-521 Injection Other: Placebo Drug: antihistamine Drug: acetaminophen Drug: entecavir Drug: tenofovir Phase 1

Detailed Description:

Phase 1a/1b multicenter dose-escalation study of ARC-521 Injection in normal healthy volunteers and patients with CHB. Eligible participants who have signed an Ethics Committee (EC)/Institutional Review Board (IRB) approved informed consent form and have met all of the protocol eligibility criteria.

Patients will undergo the following evaluations at regular intervals during the study: medical history, physical examinations, vital sign measurements (blood pressure, heart rate, respiratory rate, and temperature), weight, adverse events assessment (AEs), concomitant medications/therapies assessment, electrocardiograms (ECGs), telemetry [NHVs only], measures of hepatic fibrosis [CHBs only], blood sample collection for hematology, coagulation, chemistry, Pharmacokinetics (PK) [NHVs only], metabolic analysis [NHVs only], exploratory Pharmacodynamic (PD) measures, urinalysis, hepatitis B virus (HBV) serology, immunogenicity, Follicle Stimulating Hormone (FSH) testing (post-menopausal females) and pregnancy testing for females of childbearing potential. Clinically significant changes including AEs will be followed until resolution, until the condition stabilizes, until the event is otherwise explained, or until the patient is lost to follow-up. Prior to enrollment there is a 60 day screening period.


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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 47 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Sequential Phase 1a/1b Dose-Escalating Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Antiviral Activity of ARC-521 in Normal Adult Volunteers and Patients With Chronic Hepatitis B
Actual Study Start Date : June 2016
Actual Primary Completion Date : November 2016
Actual Study Completion Date : November 2016

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Experimental: NHV Participants: Cohort 1
NHV participants administered a single dose of ARC-521 Injection at a dose of 0.6 mg/kg.
Drug: ARC-521 Injection
Drug: antihistamine
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with an oral antihistamine, selected by the investigator from the list of approved antihistamines that is available in that country. Approved antihistamines are: diphenhydramine 50 mg by mouth (PO), chlorpheniramine 8 mg PO, or hydroxyzine 50 mg PO.

Drug: acetaminophen
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with acetaminophen (500 - 1000 mg PO, per local strength availability).

Experimental: NHV Participants: Cohort 2
NHV participants administered a single dose of ARC-521 Injection at a dose of 1 mg/kg.
Drug: ARC-521 Injection
Drug: antihistamine
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with an oral antihistamine, selected by the investigator from the list of approved antihistamines that is available in that country. Approved antihistamines are: diphenhydramine 50 mg by mouth (PO), chlorpheniramine 8 mg PO, or hydroxyzine 50 mg PO.

Drug: acetaminophen
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with acetaminophen (500 - 1000 mg PO, per local strength availability).

Experimental: NHV Participants: Cohort 3
NHV participants administered a single dose of ARC-521 Injection at a dose of 2 mg/kg.
Drug: ARC-521 Injection
Drug: antihistamine
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with an oral antihistamine, selected by the investigator from the list of approved antihistamines that is available in that country. Approved antihistamines are: diphenhydramine 50 mg by mouth (PO), chlorpheniramine 8 mg PO, or hydroxyzine 50 mg PO.

Drug: acetaminophen
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with acetaminophen (500 - 1000 mg PO, per local strength availability).

Experimental: NHV Participants: Cohort 4
NHV participants administered a single dose of ARC-521 Injection at a dose of 4 mg/kg.
Drug: ARC-521 Injection
Drug: antihistamine
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with an oral antihistamine, selected by the investigator from the list of approved antihistamines that is available in that country. Approved antihistamines are: diphenhydramine 50 mg by mouth (PO), chlorpheniramine 8 mg PO, or hydroxyzine 50 mg PO.

Drug: acetaminophen
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with acetaminophen (500 - 1000 mg PO, per local strength availability).

Experimental: NHV Participants: Cohort 5
NHV participants administered a single dose of ARC-521 Injection at a dose of 5 mg/kg.
Drug: ARC-521 Injection
Drug: antihistamine
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with an oral antihistamine, selected by the investigator from the list of approved antihistamines that is available in that country. Approved antihistamines are: diphenhydramine 50 mg by mouth (PO), chlorpheniramine 8 mg PO, or hydroxyzine 50 mg PO.

Drug: acetaminophen
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with acetaminophen (500 - 1000 mg PO, per local strength availability).

Experimental: NHV Participants: Cohort 6
NHV participants administered a single dose of ARC-521 Injection at a dose of 6 mg/kg.
Drug: ARC-521 Injection
Drug: antihistamine
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with an oral antihistamine, selected by the investigator from the list of approved antihistamines that is available in that country. Approved antihistamines are: diphenhydramine 50 mg by mouth (PO), chlorpheniramine 8 mg PO, or hydroxyzine 50 mg PO.

Drug: acetaminophen
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with acetaminophen (500 - 1000 mg PO, per local strength availability).

Placebo Comparator: NHV Participants: Placebo
NHV participants administered 0.9% normal saline to match ARC-521 Injection at doses of 0.6, 1, 2, 4, 5 and 6 mg/kg.
Other: Placebo
0.9% normal saline

Drug: antihistamine
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with an oral antihistamine, selected by the investigator from the list of approved antihistamines that is available in that country. Approved antihistamines are: diphenhydramine 50 mg by mouth (PO), chlorpheniramine 8 mg PO, or hydroxyzine 50 mg PO.

Drug: acetaminophen
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with acetaminophen (500 - 1000 mg PO, per local strength availability).

Experimental: CHB Participants: Cohort 3b
Treatment-naive participants with CHB administered 3 doses of ARC-521 Injection at 2 mg/kg once every 4 weeks. Participants are treatment-naive if they have not been on continual nucleoside analog (NUC) therapy (any NUC) for at least 6 months prior to screening (or have never been on NUCs).
Drug: ARC-521 Injection
Drug: antihistamine
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with an oral antihistamine, selected by the investigator from the list of approved antihistamines that is available in that country. Approved antihistamines are: diphenhydramine 50 mg by mouth (PO), chlorpheniramine 8 mg PO, or hydroxyzine 50 mg PO.

Drug: acetaminophen
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with acetaminophen (500 - 1000 mg PO, per local strength availability).

Experimental: CHB Participants: Cohort 4b
Treatment-naive participants with CHB administered 3 doses of ARC-521 Injection at 4 mg/kg once every 4 weeks. Participants are treatment-naive if they have not been on continual NUC therapy (any NUC) for at least 6 months prior to screening (or have never been on NUCs).
Drug: ARC-521 Injection
Drug: antihistamine
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with an oral antihistamine, selected by the investigator from the list of approved antihistamines that is available in that country. Approved antihistamines are: diphenhydramine 50 mg by mouth (PO), chlorpheniramine 8 mg PO, or hydroxyzine 50 mg PO.

Drug: acetaminophen
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with acetaminophen (500 - 1000 mg PO, per local strength availability).

Experimental: CHB Participants: Cohort 3c
Participants with CHB currently on NUCs (entecavir or tenofovir for at least 6 months) administered 3 doses of ARC-521 Injection at 2 mg/kg once every 4 weeks.
Drug: ARC-521 Injection
Drug: antihistamine
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with an oral antihistamine, selected by the investigator from the list of approved antihistamines that is available in that country. Approved antihistamines are: diphenhydramine 50 mg by mouth (PO), chlorpheniramine 8 mg PO, or hydroxyzine 50 mg PO.

Drug: acetaminophen
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with acetaminophen (500 - 1000 mg PO, per local strength availability).

Drug: entecavir
Participants take entecavir OR tenofovir daily throughout the study.

Drug: tenofovir
Participants take entecavir OR tenofovir daily throughout the study.

Experimental: CHB Participants: Cohort 4c
Participants with CHB currently on NUCs (entecavir or tenofovir for at least 6 months) administered 3 doses of ARC-521 Injection at 4 mg/kg once every 4 weeks.
Drug: ARC-521 Injection
Drug: antihistamine
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with an oral antihistamine, selected by the investigator from the list of approved antihistamines that is available in that country. Approved antihistamines are: diphenhydramine 50 mg by mouth (PO), chlorpheniramine 8 mg PO, or hydroxyzine 50 mg PO.

Drug: acetaminophen
Approximately two hours prior to ARC-521 or placebo administration, participants will be pre-treated with acetaminophen (500 - 1000 mg PO, per local strength availability).

Drug: entecavir
Participants take entecavir OR tenofovir daily throughout the study.

Drug: tenofovir
Participants take entecavir OR tenofovir daily throughout the study.




Primary Outcome Measures :
  1. Number of Participants With Treatment-Emergent Adverse Events (TEAEs): Healthy Volunteers [ Time Frame: From first dose of study drug through Day 29 (± 1 day) ]
    An adverse event (AE) is any untoward medical occurrence which does not necessarily have a causal relationship with this treatment. A serious AE is any AE that: results in death; is life-threatening; requires inpatient hospitalization or prolongation of an existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or is a medically important event or reaction.Events were categorized as mild, moderate or severe. TEAEs were defined as all AEs starting or worsening after commencement of treatment with investigational product. A treatment-related TEAE was one whose relationship to treatment was noted as unlikely, possibly, or probably related.

  2. Number of Participants With TEAEs: CHB Participants [ Time Frame: From first dose of study drug through Day 142 (± 3 days) ]
    An AE is any untoward medical occurrence which does not necessarily have a causal relationship with this treatment. A serious AE is any AE that: results in death; is life-threatening; requires inpatient hospitalization or prolongation of an existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or is a medically important event or reaction.Events were categorized as mild, moderate or severe. TEAEs were defined as all AEs starting or worsening after commencement of treatment with investigational product. A treatment-related TEAE was one whose relationship to treatment was noted as unlikely, possibly, or probably related.

  3. Pharmacokinetics of ARC-521 Injection: Area Under the Plasma-Concentration-Time Curve From Time 0-24 Hours (AUC0-24), Healthy Volunteers [ Time Frame: Through 48 hours post-dose on Day 1 ]
  4. Pharmacokinetics of ARC-521 Injection: Area Under the Plasma-Concentration-Time Curve From Time 0 to the Last Quantifiable Plasma Concentration (AUClast), Healthy Volunteers [ Time Frame: Through 48 hours post-dose on Day 1 ]
  5. Pharmacokinetics of ARC-521 Injection: Area Under the Plasma-Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUCinf), Healthy Volunteers [ Time Frame: Through 48 hours post-dose on Day 1 ]
  6. Pharmacokinetics of ARC-521 Injection: Maximum Observed Plasma Concentration (Cmax), Healthy Volunteers [ Time Frame: Through 48 hours post-dose on Day 1 ]
  7. Pharmacokinetics of ARC-521 Injection: Clearance (CL), Healthy Volunteers [ Time Frame: Through 48 hrs post-dose on Day 1 ]
  8. Pharmacokinetics of ARC-521 Injection: Apparent Volume of Distribution (V), Healthy Volunteers [ Time Frame: Through 48 hours post-dose on Day 1 ]
  9. Pharmacokinetics of ARC-521 Injection: Terminal Elimination Rate Constant (Kel), Healthy Volunteers [ Time Frame: Through 48 hours post-dose on Day 1 ]
  10. Pharmacokinetics of ARC-521 Injection: Terminal Elimination Half-Life (t1/2), Healthy Volunteers [ Time Frame: Through 48 hours post-dose on Day 1 ]
  11. Change Over Time in Viral Antigens and DNA in CHB Participants as a Measure of Activity of ARC-521 Injection [ Time Frame: Baseline to Day 142 ]

Secondary Outcome Measures :
  1. Change Over Time in Cytokine Levels After Single and Multiple Doses of ARC-521 Injection [ Time Frame: Through 24 hours post-dose (Day 1 for NHVs, and Days 1, 29 & 57 for CHB participants) ]
  2. Change Over Time in Complement Levels After Single and Multiple Doses of ARC-521 Injection [ Time Frame: Through 24 hours post-dose (Day 1 for NHVs, and Days 1, 29 & 57 for CHB participants) ]


Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Layout table for eligibility information
Ages Eligible for Study:   18 Years to 65 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Male or female, 18 to 55 years of age inclusive (NHVs) or 18-65 years of age inclusive (CHBs), at the time of informed consent
  • Able to provide written informed consent prior to the performance of any study specific procedures
  • Body mass index (BMI) between 19.0 and 35.0 kg/m2, inclusive
  • A 12-lead ECG at Screening and pre-dose assessment that, in the opinion of the investigator, has no abnormalities that compromise participant's safety in this study
  • Must use 2 effective methods of contraception (double barrier contraception or hormonal contraceptive along with a barrier contraceptive (both male and female partners)
  • Have suitable venous access for blood sampling
  • No abnormal finding of clinical relevance at the Screening evaluation (NHVs only)
  • Have a diagnosis of HbeAg-negative chronic HBV infection (CHB patients only)
  • Treatment-naive or currently on entecavir/tenofovir for 6 months or longer

Exclusion Criteria:

  • Pregnant or lactating
  • Acute signs of hepatitis/other infection at Screening or at baseline
  • Use within last 14 days or anticipated requirement for anticoagulants, systemic corticosteroids, immunomodulators, or immunosuppressants
  • Use of prescription medication within 14 days prior to study treatment that in the opinion of the PI or the Sponsor would interfere with study conduct.
  • Known diagnosis of non-alcoholic steatohepatitis [NHVs only] or familial hypercholesterolemia
  • Taking interferon alpha (INFalpha) within 6 months of screening [CHBs only]
  • History of poorly controlled autoimmune disease or history of autoimmune hepatitis
  • Human immunodeficiency virus (HIV) infection
  • Seropositive for HBV (NHVs only) or hepatitis C virus (HCV), and/or history of delta virus hepatitis
  • Hypertension defined as blood pressure > 170/100 mmHg at screening [NHVs only]
  • A history of cardiac rhythm disturbances
  • Family history of congenital long QT syndrome, Brugada syndrome or unexplained sudden cardiac death
  • Symptomatic heart failure, unstable angina, myocardial infarction, severe cardiovascular disease within 6 months prior to study entry
  • History of malignancy within the last 5 years except for adequately treated basal cell carcinoma, squamous cell skin cancer, superficial bladder tumors, or in situ cervical cancer
  • History of major surgery within 3 months of Screening
  • Regular use of alcohol within one month prior to the Screening visit (more than fourteen units of alcohol per week)
  • Evidence of severe systemic acute inflammation, sepsis, or hemolysis [NHVs only]
  • Use within 3 months of illicit drugs (cocaine, phencyclidine [PCP], 3,4-methylenedioxymethamphetamine [MDMA], others) or positive test for drugs of abuse at screening.
  • History of allergy to bee venom or history of severe hypersensitivity reaction, such as anaphylaxis
  • Use of an investigational agent or device within 30 days prior to dosing or current participation in an investigational study
  • Clinically significant history of any alcoholic liver disease, cirrhosis, Wilson's disease, hemochromatosis, or alpha-1 antitrypsin deficiency, liver or kidney disease
  • Clinically significant history/presence of poorly controlled or decompensated neurological, endocrine, cardiovascular, pulmonary, hematological, immunologic, psychiatric, metabolic, or other uncontrolled systemic disease
  • Blood donation (500 mL) within 7 days prior to study treatment administration [NHVs only]
  • History of fever (>38.0ºC/100.4ºF) within 2 weeks of Screening [NHVs only]
  • Any concomitant medical or psychiatric condition or social situation that impacts compliance or involves additional safety risk
  • History of coagulopathy (including deep vein thrombosis and pulmonary embolism) or stroke within 6 months of baseline, and/or concurrent anticoagulant medication(s)
  • Presence of cholangitis, cholecystitis, cholestasis, or duct obstruction

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02797522


Locations
Layout table for location information
New Zealand
Auckland Clinical Studies Ltd
Grafton, Auckland, New Zealand, 1011
Sponsors and Collaborators
Arrowhead Pharmaceuticals

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Responsible Party: Arrowhead Pharmaceuticals
ClinicalTrials.gov Identifier: NCT02797522     History of Changes
Other Study ID Numbers: ARC5211001
First Posted: June 13, 2016    Key Record Dates
Results First Posted: September 25, 2018
Last Update Posted: September 25, 2018
Last Verified: January 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Additional relevant MeSH terms:
Layout table for MeSH terms
Hepatitis
Hepatitis A
Hepatitis B
Hepatitis, Chronic
Hepatitis B, Chronic
Liver Diseases
Digestive System Diseases
Hepatitis, Viral, Human
Virus Diseases
Enterovirus Infections
Picornaviridae Infections
RNA Virus Infections
Hepadnaviridae Infections
DNA Virus Infections
Acetaminophen
Tenofovir
Entecavir
Histamine Antagonists
Histamine H1 Antagonists
Analgesics, Non-Narcotic
Analgesics
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Antipyretics
Antiviral Agents
Anti-Infective Agents
Reverse Transcriptase Inhibitors
Nucleic Acid Synthesis Inhibitors
Enzyme Inhibitors