Clinical trial NCT07023029: A Study on the Effect of Etavopivat on Heart Rhythm in Healthy Participants
Official title: A Study to Assess the Effect of Etavopivat on Cardiac Repolarisation in Healthy Participants
Study type: INTERVENTIONAL
Overall status: NOT_YET_RECRUITING
Phase: PHASE1
Conditions: Healthy Volunteers
Sickle Cell Disease
Thalassemia
Lead sponsor: Novo Nordisk A/S
Sponsor class: INDUSTRY
First posted: 2025-06-15
Enrollment: 26
Sex: ALL
Minimum age (years): 18
Maximum age (years): 55
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: Novo Nordisk is developing a new study medicine, Etavopivat, to treat individuals with sickle cell disease (SCD). The purpose of the study is to determine the effect of Etavopivat on the electrical activity of the heart in healthy participants. The study comprises two parts: Part A and Part B. Part A investigates the safety of a high dose of Etavopivat. In this phase, participants will receive either a single dose of Etavopivat or a placebo. Which treatment the participant gets is decided by chance. In Part B, participants will get four different treatments on four different occasions: Etavopivat in 2 different doses (the new medicine that cannot be prescribed), a dummy medicine (placebo), and an already approved medicine (moxifloxacin). The order of the 4 study medicines is decided by chance. There will be a break of 7 days between each treatment. For Part A, the study duration will be from 10 to 36 days, and for Part B, the study duration will be from 27 to 53 days.


Eligibility criteria: Inclusion Criteria:

* Male or female.
* Aged 18-55 years (both inclusive) at the time of signing informed consent.
* Body mass index (BMI) between 18.0 and 32.0 kilograms per square meter (kg/m\^2) (both inclusive) at screening.
* Body weight above 40.0 kg at screening.
* Considered to be generally healthy based on the medical history, physical examination and the results of vital signs, electrocardiogram (ECG) and clinical laboratory tests performed during the screening visit, as judged by the investigator.

Exclusion Criteria:

* Female who is pregnant, breast-feeding or intends to become pregnant or is of childbearing potential and not using adequate contraceptive methods, as defined in Appendix 4, Section 10.4.
* Current participation (i.e., signed informed consent) in any other interventional clinical study.
* Exposure to an investigational medicinal product within 30 days or 5 half-lives of the investigational medicinal product (IMP) (if known), whichever is longer, before screening.
* Any condition which in the investigator's opinion might jeopardise the participant's safety or compliance with the protocol.
* Second or 3rd degree atrioventricular-block, prolongation of the QRS complex over 120 milliseconds (ms)., or of the corrected QT interval using the Fredericia formula (QTcF) over 450 ms for males and 470 ms for females, prominent U waves, or any other clinically significant abnormal ECG results or changes that make ECGs unsuitable for QT evaluations as judged by the investigator, at screening.
* Use of tobacco and nicotine products, defined as any of the below:
* Has used any product containing tobacco or nicotine within 90 days prior to screening.
* Unable or unwilling to refrain from the use of any product containing tobacco or nicotine throughout the study.
* Positive nicotine test at screening.
* Participant is unable to refrain from or anticipates the use of antacids, iron, or any drug known to be a moderate or strong inhibitor or inducer of uridine 5'-diphosphoglucuronosyltransferase (UGT) enzymes, cytochrome P450 (CYP) 3A4, CYP2C9 or permeability glycoprotein (P-gp), including St. John's Wort, for 28 days prior to dosing and throughout the study (Section 6.8).
* Participant is unable to refrain from or anticipate the use of any medications or substances prohibited in the study (Sections 5.3, 5.5 and 6.8).

A minimum of 20% African-American participants will be included in each part of this study.

Efforts will be made to include at least 40 percentage (%) of each sex into each part of the study.

Primary outcomes:
measure: Part A: Number of treatment-emergent adverse events (AEs)
timeFrame: From dosing (Day 1) until end of study (Day 8)
measure: Part B: Change from baseline in Fridericia heart rate corrected QT interval (ΔQTcF) for etavopivat
timeFrame: From pre-dose to post etavopivat/ etavopivat placebo dose on day 1 to day 23
Secondary outcomes:
measure: Part A: Number of treatment-emergent clinically significant abnormal findings in electrocardiogram (ECGs)
timeFrame: From dosing (Day 1) until end of study (Day 8)
measure: Parts A and B: Cmax,etavopivat- Maximum observed etavopivat plasma concentration after a single dose
timeFrame: Day 1 (Part B)/ From day 1 to day 5 (Part A) after investigational medicinal product (IMP) administration
measure: Parts A and B: AUC0-last,etavopivat- Area under the etavopivat plasma concentration-time curve from 0 hours to the time of last quantifiable concentration
timeFrame: Day 1 (Part B)/ From day 1 to day 5 (Part A) after IMP administration
measure: Parts A and B: AUC0-inf,etavopivat- Area under the etavopivat plasma concentration-time curve from 0 hours and extrapolated to infinity after a single dose
timeFrame: Day 1 (Part B)/ From day 1 to day 5 (Part A) after IMP administration
measure: Parts A and B: tmax,etavopivat- Time to maximum observed etavopivat plasma concentration after a single dose
timeFrame: Day 1 (Part B)/ From day 1 to day 5 (Part A) after IMP administration
measure: Parts A and B: t½ etavopivat- Terminal half-life for etavopivat after a single dose
timeFrame: Day 1 (Part B)/ From day 1 to day 5 (Part A) after IMP administration
measure: Parts A and B: CL/F etavopivat- Apparent plasma clearance of etavopivat after a single dose
timeFrame: Day 1 (Part B)/ From day 1 to day 5 (Part A) after IMP administration
measure: Parts A and B: Vz/F etavopivat- Apparent volume of distribution of etavopivat after a single dose based on plasma concentration values
timeFrame: Day 1 (Part B)/ From day 1 to day 5 (Part A) after IMP administration
measure: Part B: ΔQTcF for moxifloxacin
timeFrame: From pre-dose to post moxifloxacin dose on day 1 to day 23
measure: Part B: Change from baseline in HR, PR interval and QRS complex duration (ΔHR, ΔPR and ΔQRS). Categorical outliers for HR, PR, QRS and QT
timeFrame: From pre-dose to post etavopivat/ etavopivat placebo dose on day 1 to day 23
measure: Part B: Frequency of treatment emergent changes of ECG morphology
timeFrame: From pre-dose to post etavopivat/ etavopivat placebo dose on day 1 to day 23
measure: Part B: Change from baseline in HR, PR interval and QRS complex duration (ΔHR, ΔPR and ΔQRS). Categorical outliers for HR, PR, QRS and QT
timeFrame: From pre-dose to post moxifloxacin dose on day 1 to day 23
measure: Part B: Frequency of treatment emergent changes of ECG morphology
timeFrame: From pre-dose to post moxifloxacin dose on day 1 to day 23
measure: Part B: ΔQTcF for etavopivat
timeFrame: From pre-dose to post etavopivat/etavopivat placebo dose on day 1 to day 23
Other outcomes:
Locations:
city: Baltimore
country: United States
facility: PAREXEL Intl - EPCU-Baltimore
state: Maryland
Study officials:
affiliation: Novo Nordisk A/S
name: Clinical Transparency (dept. 2834)
role: STUDY_DIRECTOR
References: