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ElectrocardiographyPhase 1NCT05988034

A Study to Assess the Effect of Avacopan at Therapeutic and Supratherapeutic Doses on the QT/QTc Interval in Healthy Participants

A Phase 1 study testing Avacopan and Moxifloxacin in people with Electrocardiography, run by Amgen 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

The primary objective of this study is to evaluate the effects of therapeutic and supratherapeutic doses of avacopan on the heart rate corrected QT interval, using Fridericia's formula (QTcF). Read more about this study

Who is it for?
Ages 18 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Electrocardiography
What is being tested?
Avacopan and Moxifloxacin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
58 participants
Where
1 siteUnited States
Study dates
8 Nov 2019to 31 Mar 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 18 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Be able to verbalize understanding of consent form and able to provide written informed consent;
  • Healthy male or female: No known history of a clinically significant medical diagnosis in the opinion of the Investigator and is not receiving prescription medication except birth control therapies; this includes but is not limited to no history of heart or lung disease (including latent tuberculosis), high blood pressure, history of any cardiac or endocrine disease (including thyroid disease and diabetes); appendectomy and cholecystectomy are allowed;
  • Aged ≥18 and ≤60 years at the time of screening;
  • Body mass index ≥18.0 and ≤30.0 kg/m^2, and body weight of ≥50 kg, at screening and Day -2;
  • Non- or ex-smoker; an ex-smoker is defined as someone who completely stopped using nicotine products for at least 180 days prior to the first study drug administration;
  • A female participant meeting 1 of the following criteria: (1) female participants of child-bearing potential using adequate contraception during and for at least 90 days after any administration of study medication; or (2) physiological postmenopausal status, defined as the following: absence of menses for at least 1 year prior to the first study drug administration (not due to amenorrhea secondary to lactation); and follicle stimulating hormone (FSH) levels ≥40 mIU/mL at screening; or (3) surgical postmenopausal status, defined as the following: bilateral oophorectomy; and absence of menses for at least 90 days prior to the first study drug administration; and FSH levels ≥40 mIU/mL at screening; or (4) surgical sterilization including tubal ligation, salpingectomy and hysterectomy. If the postmenopausal participant has an FSH of <40 mIU/mL, but meets the above criteria in either (1), (2), (3) or (4) (for all aspects other than FSH levels) as well as all the other inclusion criteria, the participant may be included in the study if the estradiol serum level measured at screening is equal to or below 150 pmol/L. If male, non-vasectomized participants with female partners of child-bearing potential must agree to use contraception and agree not to donate sperm during the study period and for 90 days after the last study drug administration;
  • Willing to communicate with an investigator and site staff and comply with all study procedures and requirements.

Who cannot join

  • An uninterpretable or abnormal screening electrocardiogram (ECG) indicating a second- or third-degree atrioventricular block, or one or more of the following: QRS interval >110 msec; QTcF >450 msec; PR interval >200 msec; HR <40 bpm; or any rhythm other than sinus rhythm that is interpreted an investigator to be clinically significant;
  • History of risk factors for torsades de pointes, including unexplained syncope, known long QT syndrome, heart failure, myocardial infarction, angina, or clinically significant abnormal laboratory assessments including hypokalemia, hypercalcemia, or hypomagnesemia. Participants will also be excluded if there is a family history of long QT syndrome or Brugada syndrome;
  • A sustained supine systolic blood pressure >150 mm Hg or <90 mm Hg or a supine diastolic blood pressure >95 mm Hg or <50 mm Hg at screening or on Day -1. Blood pressure may be retested more than once in the supine position. The blood pressure abnormality is considered sustained if either the systolic or the diastolic pressure values are outside the stated limits after 3 assessments and the participant may not be randomized;
  • A resting HR of <40 bpm or >100 bpm when vital signs are measured at screening or on Day -1;
  • Unstable cardiovascular disease, including recent myocardial infarction or cardiac arrhythmia;
  • History of acquired immunodeficiency syndrome or positive test results for human immunodeficiency virus, hepatitis C virus antibody, or hepatitis B surface antigen at screening;
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  • Positive urine drug or alcohol screen at screening or on Day -2 (admission);
  • Clinically significant illness, including viral syndromes within 3 weeks prior to Day 1;
  • Women who are pregnant according to a serum pregnancy test (or planning to become pregnant within the next 6 months) or currently breastfeeding, at screening or according to a urine pregnancy test on Day -2 (admission);
  • Participation in another investigational drug or device study or treated with an investigational drug within 30 days or 5 half-lives, whichever is longer, prior to Day 1;
  • Received avacopan previously;
  • Consumed more than 21 units of ethanol per week at any time in the 6 months prior to Day 1 (1 unit of ethanol is equivalent to 8 ounces of beer, 4 ounces of wine, or 1 ounce of spirits) or history of alcoholism and/or drug/chemical abuse within 5 years;
  • Use of prescription medications (with the exception of hormone replacement therapy and hormonal birth control), including nonsteroidal anti-inflammatory drugs or sucralfate and medications known to prolong the QT/QTc interval or herbal preparations within 14 days or 5 half-lives (whichever is longer) prior to Day 1, or use of an over-the-counter medication, vitamins, or supplements (including omega-3 fish oils) within 7 days prior to Day 1;
  • Use of alcohol-, caffeine-, or xanthine-containing products, Seville oranges (sour), grapefruit, or grapefruit juice, within 72 hours prior to Day 1;
  • Strenuous activity (e.g., sports) from 96 hours (4 days) prior to entry into the clinical research unit (on Day -2) and throughout the study (until the final follow-up visit is conducted);
  • Donated more than 500 mL of blood or significant blood loss within 60 days prior to signing the informed consent form;
  • Any other medical, psychological, or social condition that, in the opinion of an investigator, would prevent the participant from fully participating in the study, would represent a concern for study compliance, or would constitute a safety concern to the participant;
  • An employee of an investigator or study center with direct involvement in the proposed study or other studies under the direction of that investigator or study center, as well as a family member of the employee or investigator;
  • Known hypersensitivity to drugs including moxifloxacin;
  • Participants taking strong CYP3A4 inducers (e.g., phenytoin, fosphenytoin, rifampicin, carbamazepine, St. John's Wort, nevirapine, pentobarbital, primidone, rifapentine, enzalutamide, lumacaftor, mitotane, apalutamide, quinine, rimexolone, rifaximin, rifamycin, topiramate, oxcarbazepine) or moderate CYP3A4 inducers (e.g., bosentan, efavirenz, etravirine, modafinil, dexamethasone, etravirine, nafcillin, dabrafenib, methotrexate, bexarotene, mifepristone) within 2 weeks prior to prior to Day 1;
  • Positive screening tuberculosis blood test.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Celerion

    Tempe, Arizona, 85283

Other trials in United States

About this study

Official title: A Multiple-dose, Randomized, Double-blind, Placebo-controlled, Active-Comparator, Parallel Study to Investigate the Effect of Avacopan at Therapeutic and Supratherapeutic Doses on the QT/QTc Interval in Healthy Subjects

The primary objective of this study is to evaluate the effects of therapeutic and supratherapeutic doses of avacopan on the heart rate corrected QT interval, using Fridericia's formula (QTcF).

Being tested
Avacopan, Moxifloxacin, Placebo for avacopan, Placebo for moxifloxacin
Keywords
Complement 5a receptor (C5aR), Anti-neutrophil cytoplasmic antibody-associated vasculitis, Complement, Vasculitis
Medical subject headings
Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis, Vasculitis

What participants receive

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

  • AvacopanDrug

    Administered orally.

  • MoxifloxacinDrug

    Administered orally.

  • Placebo for avacopanDrug

    Administered orally.

  • Placebo for moxifloxacinDrug

    Administered orally.

Study groups in NCT05988034
Study groupRoleWhat they receive
Cohort 1: AvacopanExperimentalParticipants will be randomized to receive multiple doses of avacopan orally twice daily (BID): 30 mg for 7 days and 100 mg for 7 days, for a total of 14 dosing days, and placebo for moxifloxacin on Days 1 and 15.
Receives: Drug: Avacopan; Drug: Placebo for moxifloxacin
Cohort 2A: Moxifloxacin/PlaceboActive comparatorParticipants will be randomized to receive moxifloxacin 400 mg orally on Day 1, placebo for avacopan BID on Days 1 to 14, and placebo for moxifloxacin on Day 15.
Receives: Drug: Moxifloxacin; Drug: Placebo for avacopan; Drug: Placebo for moxifloxacin
Cohort 2B: Placebo/MoxifloxacinActive comparatorParticipants will be randomized to receive placebo for moxifloxacin orally on Day 1, placebo for avacopan BID on Days 1 to 14, and moxifloxacin 400 mg orally on Day 15.
Receives: Drug: Moxifloxacin; Drug: Placebo for avacopan; Drug: Placebo for moxifloxacin

What is being measured

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

  1. Change from Baseline in QTcF

    Measured: Day -1 (baseline) and up to Day 14

Secondary outcomes (21)
  1. Change from Baseline in Heart Rate (HR)

    Measured: Day -1 (baseline) and Days 1, 7, and 14

  2. Change from Baseline in Time Between P and R Wave (PR Interval)

    Measured: Day -1 (baseline) and Days 1, 7, and 14

  3. Change from Baseline in Complex Between Q and S Wave (QRS Interval)

    Measured: Day -1 (baseline) and Days 1, 7, and 14

  4. Placebo-corrected Change from Baseline in HR

    Measured: Day -1 (baseline) and Days 1, 7, and 14

  5. Placebo-corrected Change from Baseline in QTcF

    Measured: Day -1 (baseline) and Days 1, 7, and 14

  6. Placebo-corrected Change from Baseline in PR Interval

    Measured: Day -1 (baseline) and Days 1, 7, and 14

  7. Placebo-corrected Change from Baseline in QRS Interval

    Measured: Day -1 (baseline) and Days 1, 7, and 14

  8. Number of Participants with Categorical Increases in QTcF from Baseline

    Increases in absolute QTcF interval values from baseline >450 and ≤480 milliseconds (msec), >480 and ≤500 msec, or >500 msec, and changes from baseline of >30 and ≤60 msec, or >60 msec.

    Measured: Day -1 (baseline) and Days 1, 7, and 14

  9. Number of Participants with Categorical Increases in PR Interval from Baseline

    Increases in PR interval values from baseline >25% to a PR >200 msec.

    Measured: Day -1 (baseline) and Days 1, 7, and 14

  10. Number of Participants with Categorical Increases in QRS Interval from Baseline

    Increases in QRS interval from baseline >25% to a QRS >120 msec.

    Measured: Day -1 (baseline) and Days 1, 7, and 14

  11. Number of Participants with Categorical Decreases in HR from Baseline

    Decreases in HR from baseline >25% to a HR <50 beats per minute (bpm).

    Measured: Day -1 (baseline) and Days 1, 7, and 14

  12. Change from Baseline in the Number of T-wave Morphology Findings

    Measured: Day -1 (baseline) and Days 1, 7, and 14

  13. Change from Baseline in the Number of U-waves

    Measured: Day -1 (baseline) and Days 1, 7, and 14

  14. Maximum Observed Plasma Concentration (Cmax) of Avacopan

    Measured: Up to Day 14

  15. Cmax of Avacopan Metabolite M1

    Measured: Up to Day 14

  16. Time of Cmax (Tmax) of Avacopan

    Measured: Up to Day 14

  17. Tmax of Avacopan Metabolite M1

    Measured: Up to Day 14

  18. Area Under the Plasma Concentration-time Curve (AUC) From Time 0 to 6 Hours (AUC0-6h) of Avacopan

    Measured: Up to Hour 6 post-dose on Days 1, 7, and 14

  19. AUC0-6h of Avacopan Metabolite M1

    Measured: Up to Hour 6 post-dose on Days 1, 7, and 14

  20. AUC From Time 0 to 12 Hours (AUC0-12h) of Avacopan

    Measured: Up to Hour 12 post-dose on Days 1, 7, and 14

  21. AUC0-12h of Avacopan Metabolite M1

    Measured: Up to Hour 12 post-dose on Days 1, 7, and 14

Timeline

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

  1. First posted14 Aug 2023
  2. Study start8 Nov 2019
  3. Primary completion22 Jan 2020
  4. Study completion31 Mar 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
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
58 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05988034
Sponsor's protocol ID
CL014_168
Status last verified
Jul 2023
First submitted
4 Aug 2023
Last updated
14 Aug 2023
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request.

Publications

  • Miao S, Staehr P, Tai E, Darpo B, Xue H, Armas D, Webster K, Oberoi RK. A phase I thorough QT/QTc study evaluating therapeutic and supratherapeutic doses of avacopan in healthy participants. Clin Transl Sci. 2024 Jul;17(7):e13878. doi: 10.1111/cts.13878.

    PubMed 38973157

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Avacopan and Moxifloxacin in people with Electrocardiography, run by Amgen 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 21 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 14 Aug 2023. 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. 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?

Change from Baseline in QTcF (time frame: Day -1 (baseline) and up to Day 14). 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 NCT05988034, 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 14 Aug 2023.

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