The Pharmacokinetics of P1101 + Ribavirin in Interferon Treatment-Naïve Subjects With Chronic Hepatitis C Virus (HCV) Genotype 2 Infection

Phase 1

Completed

• Conditions: Hepatitis C, Chronic
• Interventions: Drug: P1101 + Ribavirin

• Registration Number: NCT04774107
• Lead Sponsor: PharmaEssentia

Brief Summary

Primary Objective:

To determine the P1101 pharmacokinetic (PK) profile at the single dose of 400 μg.

Detailed Description

Secondary Objective:

To determine the safety and immunogenicity of P1101 400 μg subcutaneous (SC) single dose + Ribavirin 800-1400 mg PO daily.

Study Timeline

• Study Start: 2020-11-26
• Study First Submitted: 2021-01-21
• Study First Submitted QC: 2021-02-25
• Study First Posted: 2021-03-01
• Primary Completion: 2022-07-18
• Study Completion: 2022-07-18
• Status Verified: 2022-08
• Last Update Submitted: 2022-08-25
• Last Update Posted: 2022-08-30

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 17

Inclusion Criteria

1. Adults ≥18 years of age (or other age required by local regulations); subjects who are over 70 years of age must be in generally good health.
2. Confirmed diagnosis of chronic hepatitis with HCV genotype 2 infection.
3. Compensated liver disease defined by normal or elevated alanine transaminase (ALT) ≤10 x upper limit of normal (ULN), total bilirubin level <2 mg/dL (except in Gilbert's syndrome), normal albumin, normal international normalized ratio (INR)
4. Interferon treatment naïve: never received any interferon.
5. No other known form of chronic liver disease apart from chronic hepatitis C infection.
6. Hemoglobin 12 g/dL in men or 11 g/dL in women, white blood cell (WBC) count 3,000/mm3, absolute neutrophil count (ANC) 1,500/mm3, platelet count 90,000/mm3; and estimated glomerular filtration rate >60 mL/min.
7. Female and male subjects, and their partners of reproductive potential using effective means of contraception during the whole trial period.
8. Be able to attend all scheduled visits and to comply with all study procedures;
9. Be able to provide written informed consent.

Exclusion Criteria

1. Decompensated liver disease.
2. Clinically significant illness or surgery within 4 weeks prior to dosing.
3. Any reason which, in the opinion of the investigator, would prevent the subject from participating in the study.
4. Positive test for HBsAg or HIV at screening.
5. Clinically significant abnormal vital signs.
6. Evidence of severe retinopathy by fundoscopy except age-related macular degeneration.
7. Significant alcohol or illicit drug abuse within one year prior to the screening visit or refusal to abstain from excessive alcohol consumption as defined above or illicit drugs throughout the study.
8. Pregnant or breast feeding female subjects.
9. Therapy with any systemic anti-viral, anti-neoplastic, and immunomodulatory treatment.
10. Use of an investigational drug or participation in an investigational drug.
11. Known clinically significant presence of any gastrointestinal pathology, clinically significant unresolved gastrointestinal symptoms, clinically significant liver or clinically significant kidney disease, or other conditions known to interfere with the absorption, distribution, metabolism, or excretion of the drug.
12. Clinically significant presence of depression determined by investigators.
13. Clinically significant presence of severe neurological disorders.
14. Clinically significant presence of severe cardiovascular conditions and severe pulmonary conditions, uncontrolled immunologic, uncontrolled autoimmune, uncontrolled endocrine, uncontrolled metabolic, haematological, severe coagulation disorders or severe blood dyscrasias or other severe uncontrolled systemic disease.
15. A depot injection or an implant of any drug within 3 months prior to administration of study medication, other than contraception or hyaluronic acid injections in joints for osteoarthritis;
16. Body organ transplant and are taking immunosuppressants;
17. History of malignant disease, including solid tumors and hematologic malignancies. However, subjects who are cancer survivors not on maintenance therapy and who had no malignant diseases history within the past 5 years could be recruited.
18. History of or ongoing opportunistic infection.
19. Serious local infection or systemic infection.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
P1101 + Ribavirin	P1101 + Ribavirin	P1101 400 µg SC Ribavirin 800-1400 mg PO

Primary Outcome Measures

Name	Time	Method
Amount of P1101 in the blood stream	2-4 weeks	The measurement of P1101 levels in the blood stream over time. The sampling time points are 0 hour before the first dose, 24±4 hours, 48±4 hours, 72±4 hours, 96±4 hours, 168±4 hours, 216±4 hours, 264±4 hours and 336±4 hours after first dose. PK sampling at 504±4 hours and 672±4 hours after first dose are optional.

Secondary Outcome Measures

Name	Time	Method
Adverse Events	2-4 weeks	To evaluate the safety of P1101 by the proportion of adverse events
Abnormal Laboratory Assessments	2-4 weeks	To evaluate the safety of P1101 by the proportion of abnormal laboratory assessments
Positive anti-drug antibodies	2-4 weeks	To evaluate the positive anti-drug antibodies of P1101 by the proportion
Positive neutralizing antibody	2-4 weeks	To evaluate the positive neutralizing antibody of P1101 by the proportion

Trial Locations

Locations (5)

Chang Gung Memorial Hospital, Chiayi Branch; 🇨🇳 Chiayi City, Taiwan

Kaohsiung Medical University Hospital; 🇨🇳 Kaohsiung, Taiwan

Chi Mei Medical Center; 🇨🇳 Tainan City, Taiwan

St. Martin De Porres Hospital; 🇨🇳 Chiayi City, Taiwan

Chia-Yi Christian Hospital; 🇨🇳 Chiayi City, Taiwan