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A Study to Investigate the Pharmacokinetics and ECG Effects of Linaprazan Glurate

A Phase I Trial to Investigate the Pharmacokinetics and ECG Effects of Single Doses of Linaprazan Glurate Administered as Oral Tablets to Healthy Participants

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05469854
Enrollment
121
Registered
2022-07-22
Start date
2022-07-13
Completion date
2026-11-30
Last updated
2026-06-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cardiodynamic ECG, GERD, Pharmacokinetics, Safety, and Tolerability

Brief summary

This is a Phase I, single-center, double blind, placebo-controlled, parallel-group, randomized trial designed to evaluate the PK, cardiodynamic ECG effects, safety, and tolerability of single oral doses of linaprazan glurate. The trial will explore the PK properties of linaprazan glurate and linaprazan as well as the cardiodynamic ECG effects, safety, and tolerability after the administration of single doses: 300 mg and 600 mg in Part I of the trial, using formulation A of linaprazan glurate, as well as 150 mg, 275 mg, and up to 2 additional dose levels, using formulation C of linaprazan glurate to reach target linaprazan mean Cmax exposure (5222 nmol/L).

Interventions

Linaprazan glurate base formulation, 25 mg oral tablets (300 mg and 600 mg doses). Linaprazan glurate hydrochloride (HCl), 25 mg and 50 mg (as base) oral tablets (150 mg, 275 mg and up to 2 additional dose levels).

DRUGPlacebo

Single dose, oral tablets

Sponsors

Cinclus Pharma Holding AB
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

Main inclusion Criteria: 1. Willing and able to give written informed consent for participation in the study. 2. Healthy male or female aged 18 to 65 years 3. Body mass index ≥18.5 and ≤35.0 kg/m2. 4. Prospective subjects, as well as their partners, must agree to contraception requirements Main

Exclusion criteria

1. Female subjects of childbearing potential unless they agree to use highly effective methods of contraception (failure rate of \<1%) from 2 weeks prior to dosing until the end-of-study visit. 2. Male subjects with a partner of childbearing potential, unless they agree to use method of contraception from 2 weeks prior to dosing until the end-of-study visit.History of or current clinically significant disease as defined in the protocol 3. History of or current clinically significant disease as defined in the protocol. 4. History of GERD, significant acid reflux. 5. Subjects who are pregnant, currently breastfeeding, or intend to become pregnant (female subjects) or father a child (male subjects) during the course of the study (i.e., from screening to end of study visit).

Design outcomes

Primary

MeasureTime frameDescription
Measurement of pharmacokinetic profile of linprazan glurate and linaprazan (AUCinf)Up to 24 hoursTo assess the Area under the plasma concentration vs. time curve (AUC) from time 0 to infinity (AUCinf)
Measurement of pharmacokinetic profile of linprazan glurate and linaprazan (AUClast)Up to 24 hoursTo assess the AUC from time 0 to the last measurable concentration (AUClast)
Measurement of pharmacokinetic profile of linprazan glurate and linaprazan (Cmax)Up to 24 hoursTo assess the Maximum plasma concentration (Cmax)
Measurement of pharmacokinetic profile of linprazan glurate and linaprazan (T1/2)Up to 24 hoursTo assess the Terminal elimination half-life (T1/2)
Measurement of Cardiodynamic ECG (QTcF)Up to 24 hoursTo assess the change from baseline in QTcF
Measurement of Cardiodynamic ECG (heart rate)Up to 24 hoursTo assess the change from baseline in heart rate
Measurement of Cardiodynamic ECG (PR interval)Up to 24 hoursTo assess the change from baseline in PR interval
Measurement of Cardiodynamic ECG (QRS interval)Up to 24 hoursTo assess the change from baseline in QRS interval
Measurement of Cardiodynamic ECG (placebo-corrected QTcF)Up to 24 hoursTo assess the change from baseline in placebo-corrected QTcF
Measurement of Cardiodynamic ECG (placebo-corrected heart rate)Up to 24 hoursTo assess the change from baseline in placebo-corrected heart rate
Measurement of Cardiodynamic ECG (placebo-corrected PR interval)Up to 24 hoursTo assess the change from baseline in placebo-corrected PR interval
Measurement of Cardiodynamic ECG (placebo-corrected QRS interval)Up to 24 hoursTo assess the change from baseline in placebo-corrected QRS interval
Measurement of Cardiodynamic ECG (categorical outliers)Up to 24 hoursNumber of categorical outliers for ECG parameters (QTcF, HR, PR interval, QRS interval)
Measurement of Cardiodynamic ECG (changes of T-wave)Up to 24 hoursFrequency of treatment emergent changes of T-wave abnormalities
Measurement of Cardiodynamic ECG (changes of U-wave)Up to 24 hoursFrequency of treatment emergent changes of U-wave abnormalities

Countries

Sweden

Contacts

CONTACTSophie Leyman, MD
sophie.leyman@cincluspharma.com+32 470214020
CONTACTKajsa Larsson, MD, PhD
kajsa.larsson@cincluspharma.com+46 70 675 01 28
PRINCIPAL_INVESTIGATORErik Rein-Hedin, MD

CTC Clinical Trial Consultants AB

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 18, 2026