Recent Updates
Recently added Catalysts

I004

Phase 2

Insulin Aspart | Small molecule | Metabolic |Amphastar Pharmaceuticals, Inc.|Trials Updated: Jul 22, 2026

I004 development status

Highest phase Phase 2
Registered trials 2 across 1 sponsor since Sep 2022

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials1
Total Enrollment62

FDA Designations

No designations recorded

I004 clinical trials

I004 · 1 trial · 3 indications

Phase 2 1
NCT07560150Comparison of the Pharmacokinetics (PK) and Pharmacodynamics (PD) Biosimilarity of Proposed Biosimilar/Interchangeable Rapid-Acting Insulin Aspart (I004) and NovoLog® After Single-Dose Subcutaneous Administration to Healthy VolunteersPharmacokinetics
COMPLETED62 Analytics
PHASE2COMPLETED
Comparison of the Pharmacokinetics (PK) and Pharmacodynamics (PD) Biosimilarity of Proposed Biosimilar/Interchangeable Rapid-Acting Insulin Aspart (I004) and NovoLog® After Single-Dose Subcutaneous Administration to Healthy Volunteers
PharmacokineticsUnlock trial analytics

Study Endpoints

Primary Endpoints

Maximum Serum Insulin Aspart Concentration, CIAmax
Baseline (Time 0) to 12 hours post-dose

Pharmacokinetic (PK) blood samples will be collected from 60 minutes before dose through 12 hours post-dose. Serum will be isolated for analyzing the concentrations of Insulin Aspart

Area Under the Curve (AUC) of Insulin Aspart Serum Concentration From Time 0 to 12 Hours Post-dose, AUCIA(0-12h)
0 to 12 hours post-dose

Pharmacokinetic (PK) blood samples will be collected from 60 minutes before dose through 12 hours post-dose. Serum will be isolated for analyzing the concentrations of Insulin Aspart. AUCIA(0-12h) will be calculated from the concentration curves. Only AUC from 0 to 12 hours (AUCIA(0-12h)) is reported.

Maximum Glucose Infusion Rate, Gmax
From drug administration to 12 hours post-dose

Participants will undergo a euglycemic clamp, where blood glucose concentration will be held at a constant target level by adjusting exogenous glucose infusion rate (GIR) following drug administration. GIR will be recorded for the duration of the euglycemic clamp and used to evaluate the Pharmacodynamic (PD) response.

Area Under the Curve (AUC) for Glucose Infusion Rate From Time 0 to 12 Hours Post-dose, AUCG(0-12h)
From drug administration to 12 hours post-dose

Participants will undergo a euglycemic clamp, where blood glucose concentration will be held at a constant target level by adjusting exogenous glucose infusion rate (GIR) following drug administration. GIR will be recorded for the duration of the euglycemic clamp and used to evaluate the Pharmacodynamic (PD) response. AUCG(0-12h) will be calculated from the glucose infusion rate curves. Because GIR is recorded in mg/kg/min, the area under the GIR-time curve has units mg/kg.

Secondary Endpoints

Area Under the Curve (AUC) of Insulin Aspart Serum Concentration From Time 0 to Infinity, AUCIA(0-∞)
0 to infinity (extrapolated; concentrations measured through 12 hours post-dose)
Area Under the Curve (AUC) of Insulin Aspart Serum Concentration From Time 0 to 2 Hours Post-dose, AUCIA(0-2h)
0 to 2 hours post-dose
Time of Maximum Insulin Aspart Serum Concentration, tIAmax
Baseline (Time 0) to 12 hours post-dose
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelCROSSOVER
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Insulin Aspart, I004EXPERIMENTALParticipants who were dosed with I004
NovoLogACTIVE_COMPARATORParticipants who were dosed with NovoLog

Interventions

NameTypeDescription
I004DRUGDrug will be administered via subcutaneous injection into the abdominal wall of the peri-umbilical area with a dose of 0.2 units/kg based on the body weight measured at Day -1 of Treatment Period 1 under fasting condition.
NovoLogDRUGDrug will be administered via subcutaneous injection into the abdominal wall of the peri-umbilical area with a dose of 0.2 units/kg based on the body weight measured at Day -1 of Treatment Period 1 under fasting condition.
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Upon review, agree to participate and sign informed consent. * Healthy male and female subjects ≥ 18 to ≤ 65 years of age. * Body mass index (BMI) ≥ 18.5 to ≤ 29.9 kg/m2 * Weight ≥ 50 kg. * Fasting plasma glucose of \< 100 mg/dL (5.5 mmol/L) measured with YSI at site; one repe...

Countries:United States
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

MEDIUMAug 22, 2026NCT07560150TRIAL_REMOVED: changed
MEDIUMAug 22, 2026NCT07560150TRIAL_REMOVED: changed
MEDIUMAug 22, 2026NCT07560150TRIAL_REMOVED: changed
MEDIUMAug 22, 2026NCT07560150TRIAL_REMOVED: changed
HIGHJul 22, 2026NCT07560150Status: RECRUITING → COMPLETED
HIGHJul 22, 2026NCT07560150Status: RECRUITING → COMPLETED

Frequently asked questions about I004

What is I004?

I004 is an investigational rapid-acting insulin aspart product developed by Amphastar Pharmaceuticals, Inc. (ticker AMPH). It is being studied as a proposed biosimilar and interchangeable version of NovoLog, a rapid-acting insulin used to manage blood glucose. I004 is in Phase 2 clinical development and has been evaluated in a completed pharmacokinetic and pharmacodynamic study.

What is I004 used for?

I004 is being developed as a rapid-acting insulin aspart for glycemic control, the same therapeutic use as NovoLog. Its completed Phase 2 trial enrolled healthy adult volunteers to compare pharmacokinetics and pharmacodynamics rather than to test glucose-lowering outcomes in patients with diabetes. The program targets the metabolic therapeutic area.

Who makes I004?

I004 is developed by Amphastar Pharmaceuticals, Inc., which trades under the ticker AMPH. The company is advancing I004 as a proposed biosimilar and interchangeable rapid-acting insulin aspart product.

What phase is I004 in?

I004 is in Phase 2 clinical development. One Phase 2 trial has been completed, and no trials are currently active. The completed study was a randomized, double-blind, active-controlled comparison conducted in the United States.

What clinical trials is I004 in?

I004 has been studied in one completed Phase 2 trial, NCT07560150. That trial compared the pharmacokinetics and pharmacodynamics of I004 with NovoLog after a single subcutaneous dose in healthy volunteers. It enrolled 62 participants aged 18 years and older, was randomized, double-blind, and active-controlled, and was conducted in the United States.

Is I004 FDA approved?

I004 is not approved; it is an investigational product still in clinical development. Its only listed trial, NCT07560150, has completed, and no active trials are ongoing. Amphastar Pharmaceuticals is developing it as a proposed biosimilar and interchangeable rapid-acting insulin aspart.