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Healthy ParticipantsPhase 1NCT04302064

A Study to Assess the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Single-Ascending and Multiple Doses of Eplontersen (Formerly Known as ION-682884, IONIS-TTR-LRx and AKCEA-TTR-LRx) in Healthy Japanese Participants

A Phase 1 study testing Eplontersen in people with Healthy Participants, run by Ionis Pharmaceuticals, Inc. at 1 site in United States.

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

To evaluate the safety and tolerability of single and potentially multiple doses of Eplontersen administered subcutaneously (SC) to healthy Japanese participants. Read more about this study

Who is it for?
Ages 20 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Healthy Participants
What is being tested?
Eplontersen
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
24 participants
Where
1 siteUnited States
Study dates
23 Apr 2020to 10 Sep 2020
Phase
Phase 1
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 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Must have given written informed consent (signed and dated) and any authorizations required by local law and be able to comply with all study requirements
  • Healthy Japanese males or females of non-childbearing potential, aged 20 to 65 inclusive at the time of informed consent defined as being of first- or second-generation ethnic origin with each set of parents qualifying as Japanese under the prior generation. Generations will be defined as follows:
  • First generation Japanese participants must be born in Japan, cannot have lived outside of Japan for more than 10 years, must maintain Japanese diet, culture and lifestyle and parents and both sets of grandparents are of Japanese origin
  • Second-generation Japanese are participants who are born outside of Japan to the first-generation Japanese parents
  • Females must be non-pregnant and non-lactating, and either surgically sterile (e.g., tubal occlusion, hysterectomy, bilateral salpingectomy, bilateral oophorectomy) or post-menopausal (defined as 12 months of spontaneous amenorrhea without an alternative medical cause and follicle-stimulating hormone (FSH) levels in the postmenopausal range for the laboratory involved Males must be surgically sterile or abstinent*, if engaged in sexual relations with a female of child-bearing potential, the participant must be using an acceptable contraceptive method from the time of signing the informed consent form until at least 91 days (single-dose cohorts) or 13 weeks (multiple-dose cohorts) after the last dose of Study Drug (Eplontersen or placebo)
  • Abstinence is only acceptable as true abstinence, i.e., when this is in line with the preferred and usual lifestyle of the participant. Periodic abstinence (e.g., calendar, ovulation, symptothermal, post-ovulation methods), declaration of abstinence for the duration of a trial and withdrawal are not acceptable methods of contraception.
  • Willingness to take vitamin A supplements

Who cannot join

  • Clinically significant abnormalities in medical history (e.g., previous acute coronary syndrome within 6 months of Screening, major surgery within 3 months of Screening) or physical examination
  • Screening laboratory results as follows, or any other clinically significant abnormalities in Screening laboratory values that would render a participant unsuitable for inclusion
  • Random spot urine protein/creatinine (P/C) ratio (UPCR) ≥ 200 milligrams per gram (mg/g).
  • Alanine aminotransferase (ALT), aspartate aminotransferase (AST), bilirubin, alkaline phosphatase (ALP), serum creatinine, blood urea nitrogen (BUN) > upper limit of normal (ULN)
  • Fasting blood glucose > ULN
  • Platelet count < lower limit of normal (LLN)
  • Uncontrolled hypertension (blood pressure [BP] > 160/100 millimeters of mercury [mm Hg])
  • Malignancy within 5 years, except for basal or squamous cell carcinoma of the skin or carcinoma in situ of the cervix that has been successfully treated

Trial locations and contacts

1 site in 1 country.

United States1 site
  • WCCT Global

    Cypress, California, 90630

Other trials in United States

About this study

Official title: A Randomized, Double-Blinded, Placebo-Controlled, Study to Assess Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Single-Ascending and Multiple Doses of ION-682884 in Healthy Japanese Participants

To evaluate the safety and tolerability of single and potentially multiple doses of Eplontersen administered subcutaneously (SC) to healthy Japanese participants.

Read the detailed description

This is a single-center, double-blinded, placebo-controlled study in up to 44 participants. Participants will be randomized to receive three subcutaneous single-ascending doses and potentially multiple doses of Eplontersen or placebo.

Being tested
Eplontersen, Placebo

What participants receive

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

  • EplontersenDrug

    Also called ION-682884, AKCEA-TTR-LRx, IONIS-TTR-LRx

    Eplontersen administered SC

  • PlaceboDrug

    Eplontersen-matching placebo administered SC

Study groups in NCT04302064
Study groupRoleWhat they receive
EplontersenExperimentalSingle dose on Day 1 or multiple doses (every 4 weeks for 12 weeks) of Eplontersen administered SC.
Receives: Drug: Eplontersen
PlaceboPlacebo comparatorSingle dose on Day 1 or multiple doses (every 4 weeks for 12 weeks) of Eplontersen-matching placebo administered SC.
Receives: Drug: Placebo

What is being measured

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

  1. Percentage of Participants with at Least One Treatment-emergent Adverse Event (TEAE), Graded by Severity

    Measured: Up to 92 days

  2. Percentage of Participants with TEAEs Potentially Related to Study Drug

    Measured: Up to 92 days

  3. Percentage of Participants with Changes in Clinically Significant (CS) Laboratory Value Abnormalities

    Measured: Up to 92 days

Timeline

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

  1. First posted10 Mar 2020
  2. Study start23 Apr 2020
  3. Primary completion10 Sep 2020
  4. Study completion10 Sep 2020

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
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
24 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04302064
Sponsor's protocol ID
ION-682884-CS20
Status last verified
Mar 2022
First submitted
6 Mar 2020
Last updated
31 Mar 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Diep JK, Yu RZ, Viney NJ, Schneider E, Guo S, Henry S, Monia B, Geary R, Wang Y. Population pharmacokinetic/pharmacodynamic modelling of eplontersen, an antisense oligonucleotide in development for transthyretin amyloidosis. Br J Clin Pharmacol. 2022 Dec;88(12):5389-5398. doi: 10.1111/bcp.15468. Epub 2022 Aug 7.

    PubMed 35869634

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Eplontersen in people with Healthy Participants, run by Ionis Pharmaceuticals, Inc. at 1 site in United States.

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 7 inclusion and 8 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: finished, as of the sponsor's last update on 31 Mar 2022. 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 United States. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of Participants with at Least One Treatment-emergent Adverse Event (TEAE), Graded by Severity (time frame: Up to 92 days). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04302064, which also lists 1 linked publication.

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 31 Mar 2022.

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