About this trial
GRWD0715 is an orally administered, selective inhibitor of the Endoplasmic Reticulum Aminopeptidase 1 \[ERAP1\] enzyme being explored as a potential new treatment for axial spondyloarthritis (axSpA), a long term condition caused by inflammation predominantly affecting the sacroiliac joints (SIJs) and spine.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Healthy male and female subjects aged 18-55 years inclusive, at the Screening visit
Participant must provide written informed consent to participate in the study
Participant must be able and willing to comply with the requirements of the protocol (including dietary restrictions and exclusion of grapefruit juice)
Male participants (and their female partners) / female participants must be willing to adhere to contraception requirements as detailed in the protocol
Disqualifiers
History or presence of any clinically significant findings in medical history, physical examination, vital signs and/or laboratory tests that, in the opinion of the Investigator, would preclude inclusion in the study
Participation in a New Chemical Entity clinical study within the previous 124 days or a marketed drug clinical study within the previous 93 days
Known infection or lifestyle risk factors for human immunodeficiency virus (HIV) and/or hepatitis B or C infection, as determined at the Screening visit
Participants who have received >1/(Australia only) >2 biologic or JAK inhibitor DMARD or are receiving any other disease-modifying antirheumatic drugs (other than those allowed), thalidomide (including previous use) and other prohibited concomitant medications.
Trial design
Sequential
Treatments tested in this trial
Part A - Single Ascending Dose (SAD) in Healthy Human Volunteers
DrugParticipants in Part A will receive a single dose of GRWD0715 on Day 1 only.
Part B - Multiple Ascending Dose (MAD) in participants with axSpA
DrugParticipants in Part B will receive GRWD0715 for 28 days
Part C - Safety expansion cohort in participants with axSpA
DrugParticipants in Part C will receive GRWD0715 for 12 weeks
Part D - Randomised, placebo-controlled, expansion cohort in participants with axSpA
DrugParticipants in Part D will receive GRWD0715 or placebo-to-match for 12 weeks
Treatment groups
Trial outcomes
Primary outcomes
Incidence and nature of dose limiting event(s) (DLE)s (Parts A and B only)
To determine safety and tolerability of GRWD0715 in healthy volunteers (Part A) and participants with axSpA (Part B)
Incidence, Type and Severity of treatment related adverse events (TRAEs)
To determine safety and tolerability of GRWD0715 in healthy volunteers (Part A) and participants with axSpA (Parts B and C)
Incidence, type and severity of treatment emergent adverse events (TEAEs)
To determine safety and tolerability of GRWD0715 in healthy volunteers (Part A) and participants with axSpA (Parts B and C)
To determine the efficacy of GRWD0715 compared to placebo in participants with axSpA (Part D)
Analysis of the Assessment of Spondyloarthritis International Society (ASAS) Core Outcome Set (COS). ASAS20 (improvement of 20% or more and 1 unit or more; improvement in at least 3 of 4 domains; no worsening on fourth dimension) and ASAS40 (improvement of 40% and 2 units or more; improvement in at least 3 of 4 domains; no worsening on fourth dimension) will be calculated from constituent questions with the ASAS COS clinical measures and patient reported outcomes
Secondary outcomes
PK Parameter Trough Concentrations
To characterise the plasma PK of GRWD0715 following single dose administration (Part A) and multiple dose administration (Parts B, C and D)
PK Parameter Cmax (Maximum observed concentration)
To characterise the plasma PK of GRWD0715 following single dose administration (Part A) and multiple dose administration (Part B)
PK Parameter Tmax (Time to maximum observed concentration)
To characterise the plasma PK of GRWD0715 following single dose administration (Part A) and multiple dose administration (Part B).
PK Parameter AUC0-t (Area under the concentration-time curve)
To characterise the plasma PK of GRWD0715 following single dose administration (Part A) and multiple dose administration (Parts B)
Sponsors and contacts
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