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Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, Food Effect and DDI of Ascending Doses of the MEK Inhibitor Zapnometinib

A Phase I Dose Escalation Study of Ascending Single and Multiple Doses of the MEK Inhibitor Zapnometinib in Healthy Subjects to Evaluate the Safety & Tolerability Compared to Placebo, Additionally Evaluating Pharmacokinetics and Pharmacodynamics of Target Engagement, as Well as Investigating Possible FDI and DDI

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05555823
Enrollment
96
Registered
2022-09-27
Start date
2022-06-23
Completion date
2023-07-20
Last updated
2023-08-01

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

Conditions

Healthy

Brief summary

The purpose of this study is to evaluate the safety and tolerability of ascending doses of the MEK-inhibitor zapnometinib (ATR-002) given as single doses (SAD Part) and as multiple doses for 7 days (MAD Part) in healthy subjects.

Detailed description

This is a Phase 1, single-center, randomized, double-blind, controlled clinical trial (zapnometinib vs. placebo in the SAD/MAD Parts; 'fed' vs. 'fasted' in the FDI Part, 'probe substance' (repaglinide or celecoxib) in combination with zapnometinib vs. probe substance alone in the DDI part). The study will assess the safety, tolerability, PK (applicable to SAD/MAD Part) and PD (applicable to SAD Part only) effects of zapnometinib versus a matching placebo (applicable to SAD/MAD Part) in healthy subjects. The FDI cohorts will investigate the possible impact of a standard breakfast high in fat content in comparison to administration in fasted state. The DDI cohorts with celecoxib and repaglinide will investigate a possible drug-drug interaction.

Interventions

300 mg tablets for oral intake

DRUGPlacebo

matching tablets for oral intake

DRUGRepaglinide

0,5 mg tablets for oral intake

DRUGCelecoxib

100 mg capsules for oral intake

Sponsors

Atriva Therapeutics GmbH
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
DOUBLE (Subject, Investigator)

Masking description

matching placebo tablets

Intervention model description

Randomized, double-blind, placebo-controlled, mono-centre; SAD, MAD, FDI, DDI part

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

1. Capable of giving signed informed consent as described in Section 10.1.3, which includes compliance with the requirements, prohibitions and restrictions listed in the informed consent form (ICF) and in this protocol. 2. Subject has been informed both verbally and in writing about the objectives of the clinical trial, the methods, the anticipated benefits and potential risks and the discomfort to which he/she may be exposed, and has given written consent to participation in the trial prior to trial start and any trial-related procedure. 3. Study participant must be at least 18 years of age and not older than 55 years of age at the time of signing the ICF. 4. Non-smokers or ex-smokers who had stopped smoking for at least 5 years prior to start of the clinical study. 5. In good physical and mental health as determined on the basis of medical history and general physical examination performed at screening. 6. Hematology and chemistry parameters, pulse rate and/or blood pressure, and ECG within the reference range for the population studies, or showing no clinically relevant deviations, as judged by the Investigator (Note that some defined clinical laboratory parameters must not exceed the upper limit of reference range - see Exclusion Criterion #3). 7. Negative urine test for selected drugs of abuse at screening and upon check-in at the clinical site. Note: Subjects should not consume poppy-seeds within 72 h before screening and before each urine drug screening because this can falsify the results of the opiate urine drug test. 8. Negative alcohol breath test at screening and upon check-in at the clinical site. 9. Negative hepatitis panel (including hepatitis B surface antigen \[HBsAg\] and anti-hepatitis C virus \[HCV\] antibodies) and negative human immunodeficiency virus (HIV) antibody screens and negative SARS-CoV-2 PCR test. 10. Body weight at least 70 kg for males and 60 kg for females and have a body mass index (BMI) ≥ 18.0 kg/m2 and \< 29.9 kg/m2. 11. Male or female. Pregnancy and Contraception 12. Female subjects must be of non-childbearing potential, as follows. A female study participant is eligible to participate if she is not pregnant or breastfeeding, and one of the following conditions applies: 1. At least 1 year post-menopausal (amenorrhea \>12 months in the absence of an alternative medical cause and follicle-stimulating hormone \>30 mIU/mL in women not using hormonal contraception or hormonal replacement therapy) prior to screening; 2. Surgically sterile (bilateral oophorectomy, hysterectomy, bilateral salpingectomy, or bilateral tubal ligation). To protect partners from possible exposure to study medication in semen, male subjects must use a condom during the study, even if they have had a vasectomy or their partner is not of childbearing potential, and they must not plan to father a child, or donate sperm, during the study, and for 4 months after their final dose of study medication. Note: medically acceptable methods of contraception that may be used by the partner include combined oral contraceptive, contraceptive vaginal ring, contraceptive injection, intrauterine device, and etonogestrel implant.

Exclusion criteria

1. Clinically relevant abnormal history, physical findings, ECG, or laboratory values at the pre-study screening assessment that could interfere with the objectives of the study or the safety of the subject. Note: Blood pressure and heart rate at the screening examination outside the ranges 90- 139 mmHg systolic, 50-89 mmHg diastolic; heart rate 50-90 bpm are considered as

Design outcomes

Primary

MeasureTime frame
Number of participants with TEAEs and SAEs, with abnormal ECG readings, abnormal vital signs, and abnormal laboratory parametersFrom 1st administration of study drug (SAD/MAD Day 1; DDI Day -1) up to 21 days after last dosing

Secondary

MeasureTime frame
FDI cohort (two-period fixed-sequence design 'fasted' vs. 'fed'): AUC0-∞Day 1 to Day 7
DDI part: CmaxDay -1 and Day 1
DDI part: tmaxDay -1 and Day 1
DDI part: t1/2Day -1 and Day 1
DDI part: AUC0-tDay -1 and Day 1
DDI part: AUC0-∞Day -1 and Day 1
SAD part: CmaxDay 1 to Day 7
SAD part: tmaxDay 1 to Day 7
SAD part: t1/2Day 1 to Day 7
SAD part: AUC0-tDay 1 to Day 7
FDI cohort (two-period fixed-sequence design 'fasted' vs. 'fed'): AUC0-tDay 1 to Day 7
MAD part: Cmaxpostdose on Day 1
MAD part: tmaxpostdose on Day 1
MAD part: CtroughDay 2 to Day 7
MAD part: t1/2postdose on Day 7
MAD part: AUC0-tpostdose on Day 7
SAD part: percent MEK inhibition by measuring the reduction of ERK phosphorylation after study drug administration as compared to baseline in stimulated PBMCs isolated from blood samples from study participantsup to day 5
FDI cohort (two-period fixed-sequence design 'fasted' vs. 'fed'): CmaxDay 1 to Day 7
FDI cohort (two-period fixed-sequence design 'fasted' vs. 'fed'): tmaxDay 1 to Day 7
FDI cohort (two-period fixed-sequence design 'fasted' vs. 'fed'): t1/2Day 1 to Day 7
SAD part: AUC0-∞Day 1 to Day 7

Countries

Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026