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RZ358 Sequential Group

Phase 2

Congenital Hyperinsulinism | Small molecule | Endocrine |Rezolute, Inc.|Last Updated: May 28, 2025

Target and mechanism

ModalitySmall molecule

Also known as RZ358 Sequential Group Cohort 1

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment23

FDA Designations

No designations recorded

Clinical trial landscape

RZ358 Sequential Group · 1 trial · 1 indication

Phase 2 1
NCT04538989An Open-Label Multiple Dose Study of RZ358 in Patients With Congenital HyperinsulinismCongenital Hyperinsulinism
COMPLETED23 Analytics
PHASE2COMPLETED
An Open-Label Multiple Dose Study of RZ358 in Patients With Congenital Hyperinsulinism
Congenital HyperinsulinismUnlock trial analytics

Study Endpoints

Primary Endpoints

Median of Average Daily Percent Time Within a Glucose Target Range of 70-180 mg/dL (3.9-10 mmol/L) by CGM at Baseline (BL) and End of Treatment (EOT)
8 weeks

The median of average daily percent time within the glucose target range 70-180 mg/dL (3.9-10 mmol/L) by CGM at Baseline and End of Treatment (EOT) is reported.

Median Percent Change of Average Daily Percent Time Within a Glucose Target Range of 70-180 mg/dL (3.9-10 mmol/L) by CGM From Baseline (BL)
8 weeks

The average daily percent time within the glucose target range (70-180 mg/dL) is compared from baseline to end of treatment (EOT) and the median percent change of that difference is reported.

Repeat Dose Pharmacokinetics of RZ358
Pre dose Weeks 1,3,5,7, 1-hr post dose Week 1 and Week 7, and Follow up on Days 14, Day 28, Day 42, and Day 105

All patients who received RZ358 and for whom the primary PK data was considered to be sufficient and interpretable were to be included in the PK analyses. Individual and mean plasma concentration data is summarized descriptively at the specified timepoints. The results of this study may be combined with those of other studies for analysis and modeling (e.g., population PK and PK-PD), and therefore the PK parameters are reported separately, as part of an iterative population PK approach.

Secondary Endpoints

Median of Average Weekly Overall, Moderate, and Severe Hypoglycemia Events by SMBG at Baseline (BL) and End of Treatment (EOT)
8 weeks
Median Percent Change of Average Weekly Overall, Moderate, and Severe Hypoglycemia Events by SMBG From Baseline (BL)
8 weeks
Median of Average Daily Percent Time With Overall, Moderate, and Severe Hypoglycemia by CGM at Baseline (BL) and End of Treatment (EOT)
8 weeks
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
RZ358 Cohort 1EXPERIMENTAL -
RZ358 Cohort 2EXPERIMENTAL -
RZ358 Cohort 3EXPERIMENTAL -
RZ358 Cohort 4EXPERIMENTAL -

Interventions

NameTypeDescription
RZ358 Sequential Group Cohort 1DRUGIV infusion for 8 weeks (3 mg/kg bi-weekly for 8 weeks)
RZ358 Sequential Group Cohort 2DRUGIV infusion for 8 weeks (6 mg/kg bi-weekly for 8 weeks)
RZ358 Sequential Group Cohort 3DRUGIV infusion for 8 weeks (9 mg/kg bi-weekly for 8 weeks)
RZ358 Sequential Group Cohort 4DRUGIV infusion for 8 weeks (bi-weekly fixed dose-titration from 3 to 9 mg/kg for the first 4 weeks, followed by a fixed 9 mg/kg dose amount thereafter for the remaining 4 weeks)
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Eligibility Criteria

Age Range2 Years to 45 Years
SexALL
Healthy VolunteersNo
Study Sites17

Inclusion Criteria: * Male or female age 2-45 years old (except age 12-45 in US) with an established clinical diagnosis of congenital hyperinsulinism * Able to provide written informed consent or, as applicable, assent * Confirmed hypoglycemia as assessed by CGM, SMBG, and clinical evaluation, duri...

Countries:United StatesBulgariaCanadaDenmarkGeorgiaGermanyIsraelRussiaSpainTurkey (Türkiye)United Kingdom
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