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A Phase 1/2, adaptive, open-label, single ascending dose to multiple ascending dose study to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of mRNA-3745 in participants with glycogen storage disease type 1a (GSD1a), followed by an open-label extension

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2022-502963-39-00
Acronym
mRNA-3745-P102
Enrollment
24
Registered
2024-05-27
Start date
2024-06-20
Completion date
2025-10-06
Last updated
2025-07-30

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

Conditions

Glycogen storage disease type 1a (GSD1a)

Brief summary

• Incidence and severity of TEAEs, SAEs, and TEAEs leading to treatment discontinuation. • Changes in vital signs, ECG results, and laboratory findings (including hematology, serum chemistry, urinalysis, and coagulation parameters).

Detailed description

• Absence of hypoglycemiaa for up to 12 hours during fasting challenges. • Change from baseline of area under the AUEC of blood glucose and lactate during fasting challenges. • Change from baseline in time to hypoglycemia during fasting challenges. Change in other PD parameters including Emax and TEmax, during fasting challenges., • PK parameters determined during the SAD portion of the study including, but not limited to Cmax, Tmax, AUC0-t, AUC0-inf, t1/2, CL, and Vz. • Additional PK parameters determined during the MAD portion of the study including, but not limited to Cmax,ss, AUC0-t,ss, Vss, and Rac determined by the ratio of AUC0-t,ss and AUC0-t. • Change from baseline in metabolic biomarkers such as blood levels of uric acid, triglycerides, LDL, and HDL.

Interventions

DRUGPARACETAMOL
DRUGFEXOFENADINE
DRUGCETIRIZINE
DRUGDEXAMETHASONE
DRUGDIPHENHYDRAMINE
DRUGIBUPROFEN
DRUGFAMOTIDINE
DRUGONDANSETRON

Sponsors

Moderna Therapeutics Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
0 Years to 64 Years

Design outcomes

Primary

MeasureTime frame
• Incidence and severity of TEAEs, SAEs, and TEAEs leading to treatment discontinuation. • Changes in vital signs, ECG results, and laboratory findings (including hematology, serum chemistry, urinalysis, and coagulation parameters).

Secondary

MeasureTime frame
• Absence of hypoglycemiaa for up to 12 hours during fasting challenges. • Change from baseline of area under the AUEC of blood glucose and lactate during fasting challenges. • Change from baseline in time to hypoglycemia during fasting challenges. Change in other PD parameters including Emax and TEmax, during fasting challenges., • PK parameters determined during the SAD portion of the study including, but not limited to Cmax, Tmax, AUC0-t, AUC0-inf, t1/2, CL, and Vz. • Additional PK parameters determined during the MAD portion of the study including, but not limited to Cmax,ss, AUC0-t,ss, Vss, and Rac determined by the ratio of AUC0-t,ss and AUC0-t. • Change from baseline in metabolic biomarkers such as blood levels of uric acid, triglycerides, LDL, and HDL.

Countries

France, Netherlands, Poland, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026