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Nucleoside Reverse Transcriptase Inhibitor

TAF for Chronic Hepatitis B

Phase 2
Recruiting
Research Sponsored by Gilead Sciences
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Males and non-pregnant, non-lactating females
HBeAg-positive, or HBeAg-negative, chronic HBV infection with all of the following:
Timeline
Screening 3 weeks
Treatment Varies
Follow Up predose, 15 minutes, 30 minutes, 1, 1.5, 2, 3, 4, 5, and 8 hours postdose at week 4 or 8 (cohort 1), and week 4, 8, or 12 (cohort 2)
Awards & highlights

Study Summary

This trial is testing a new drug, tenofovir alafenamide, to see if it is safe and effective in treating children and adolescents with chronic hepatitis B. The trial will consist of two parts, with the first part focused on collecting information about the new drug's pharmacokinetics in children, and the second part testing the safety and efficacy of the drug in children with chronic hepatitis B.

Who is the study for?
This trial is for children and teens with chronic hepatitis B. They must have had the virus for at least 6 months, weigh a minimum of 10 kg (22 lbs), and not be pregnant or breastfeeding. Participants should not have other liver diseases, HIV, HCV, HDV co-infections, cancer history within the last 5 years or substance abuse issues.Check my eligibility
What is being tested?
The study tests Tenofovir Alafenamide (TAF) against a placebo to see how effective and safe it is in treating young people with chronic hepatitis B. It also aims to find out the right dose levels for children.See study design
What are the potential side effects?
While specific side effects are not listed here, TAF may cause gastrointestinal discomforts like nausea or vomiting, headaches, fatigue and potential kidney problems as seen in adults.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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I am a man or a woman not pregnant or breastfeeding.
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I have chronic hepatitis B.
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I weigh at least 77 pounds.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~predose, 15 minutes, 30 minutes, 1, 1.5, 2, 3, 4, 5, and 8 hours postdose at week 4 or 8 (cohort 1), and week 4, 8, or 12 (cohort 2)
This trial's timeline: 3 weeks for screening, Varies for treatment, and predose, 15 minutes, 30 minutes, 1, 1.5, 2, 3, 4, 5, and 8 hours postdose at week 4 or 8 (cohort 1), and week 4, 8, or 12 (cohort 2) for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Incidence of Treatment-Emergent Adverse Events (AEs) at Week 24
Incidence of Treatment-Emergent Serious Adverse Events (SAEs) at Week 24
PK Parameter: AUCtau of TAF for participants from Cohort 2 Part A
+1 more
Secondary outcome measures
Acceptability of study drug
Change from baseline in beta-2-microglobulin to creatine ratio at Weeks 4, 8, 12, 24, and 48
Change from baseline in estimated glomerular filtration rate (eGFR) by the Schwartz formula
+33 more

Side effects data

From 2022 Phase 3 trial • 426 Patients • NCT01940341
19%
Headache
14%
Nasopharyngitis
13%
Upper respiratory tract infection
11%
Arthralgia
9%
Cough
7%
Back pain
6%
Fatigue
6%
Diarrhoea
6%
Influenza
6%
Nausea
5%
Pain in extremity
5%
Abdominal pain
4%
Dyspepsia
4%
Pharyngitis
3%
Dizziness
3%
Urinary tract infection
3%
Hypertension
1%
Gastrooesophageal reflux disease
1%
Pancreatic carcinoma
1%
Hepatocellular carcinoma
1%
Ureterolithiasis
1%
Calculus ureteric
100%
80%
60%
40%
20%
0%
Study treatment Arm
Double-blind Phase: TAF 25 mg
Double-blind Phase: TDF 300 mg
Open-label TAF Extension Phase: TAF 25 mg to TAF 25 mg
Open-label TAF Extension Phase: TDF 300 mg to TAF 25 mg

Trial Design

7Treatment groups
Experimental Treatment
Placebo Group
Group I: TAF (Cohort 2 Group 3)Experimental Treatment1 Intervention
Participants (2 to < 6 years) will receive TAF for 24 weeks as follows: weight ≥ 10 kg to < 14 kg (7.5 mg oral granules) weight ≥ 14 kg to < 25 kg (15 mg oral granules)
Group II: TAF (Cohort 2 Group 2)Experimental Treatment1 Intervention
Participants (6 to < 12 years) weighing ≥ 14 kg to < 25 kg will receive TAF 15 mg oral granules for 24 weeks
Group III: TAF (Cohort 2 Group 1)Experimental Treatment1 Intervention
Participants (6 to < 12 years) weighing ≥ 25 kg will receive TAF 25 mg tablet for 24 weeks
Group IV: TAF (Cohort 1)Experimental Treatment1 Intervention
Participants (12 to < 18 years) weighing ≥ 35 kg will receive TAF 25 mg tablet for 24 weeks
Group V: Open-Label TAFExperimental Treatment1 Intervention
Following 24 weeks of blinded randomized treatment, participants will be eligible to participate in an open-label extension phase to receive TAF for an additional 216 weeks.
Group VI: Cohort 2 PlaceboPlacebo Group1 Intervention
Participants will receive matching placebo of TAF (tablet or oral granules) for 24 weeks.
Group VII: Placebo (Cohort 1)Placebo Group1 Intervention
Participants (12 to < 18 years) weighing ≥ 35 kg will receive placebo tablet for 24 weeks
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
TAF
2015
Completed Phase 3
~2710

Find a Location

Who is running the clinical trial?

Gilead SciencesLead Sponsor
1,084 Previous Clinical Trials
848,329 Total Patients Enrolled
Gilead Study DirectorStudy DirectorGilead Sciences
343 Previous Clinical Trials
186,543 Total Patients Enrolled

Media Library

Tenofovir Alafenamide (TAF) (Nucleoside Reverse Transcriptase Inhibitor) Clinical Trial Eligibility Overview. Trial Name: NCT02932150 — Phase 2
Chronic Hepatitis B Research Study Groups: TAF (Cohort 2 Group 3), Cohort 2 Placebo, Open-Label TAF, TAF (Cohort 1), Placebo (Cohort 1), TAF (Cohort 2 Group 1), TAF (Cohort 2 Group 2)
Chronic Hepatitis B Clinical Trial 2023: Tenofovir Alafenamide (TAF) Highlights & Side Effects. Trial Name: NCT02932150 — Phase 2
Tenofovir Alafenamide (TAF) (Nucleoside Reverse Transcriptase Inhibitor) 2023 Treatment Timeline for Medical Study. Trial Name: NCT02932150 — Phase 2

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

Are people currently being recruited for this experiment?

"This study, which can be found on clinicaltrials.gov, is currently looking for patients to participate. The trial was first posted on November 1st 2016 and was last updated on November 15th 2022."

Answered by AI

How can I become a part of this clinical research?

"This clinical trial is looking for 150 young patients that have previously contracted a virus. The age range for participants is 2-17 years old. There are a few key requirements that potential patients must meet in order to be eligible for the study, which are as follows: Cohort 1 = ≥ 35 kg (≥ 77 lbs), Willing and able to provide written informed consent/assent (child and parent/legal guardian), Males and non-pregnant, non-lactating females, Cohort 2 Group 1 = ≥ 25 kg (≥ 55 lbs), Cohort 2 Group 2 = ≥ 14 kg to"

Answered by AI

Are elderly people being welcomed into this clinical trial?

"Children aged 2 to 17 may be eligible for this clinical trial. Out of the 400+ trials currently recruiting, less than 100 are seeking patients who fit this age bracket."

Answered by AI

How many patients are part of this experiment?

"In order to properly conduct this trial, we need 150 participants that fit the bill in terms of our inclusion criteria. These children can receiving treatment at Rady Childrens Hospital in San Diego or Children's Mercy Hospital in Kansas City."

Answered by AI

Is this study widely available in urban areas?

"This trial has 20 locations, with the principle ones being Rady Childrens Hospital in San Diego, California; Children's Mercy Hospital in Kansas City, Missouri; and Texas Children's Hospital - Main Hospital in Houston, Texas."

Answered by AI

Are there any dangers patients should know about before taking TAF?

"While Phase 2 trials don't have data supporting efficacy, TAF's safety profile was still strong enough for it to receive a score of 2."

Answered by AI
~21 spots leftby Aug 2025