NCT04414579

Brief Summary

The purpose of this investigator-initiated trial is to compare the efficacy in terms of time to recovery from hyperglycemia as measured by time to arrest of hyperglycemic excursion ("glucose plateau point", primary endpoint) and return to premeal glucose target if feasible (secondary endpoint) between Fiasp and conventional insulin aspart when used as a correction bolus. These endpoints will be determined by CGM (Dexcom) from data exported from the Dexcom Clarity program.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
45

participants targeted

Target at P25-P50 for phase_4

Timeline
Completed

Started Mar 2019

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 27, 2019

Completed
1.2 years until next milestone

First Submitted

Initial submission to the registry

May 26, 2020

Completed
9 days until next milestone

First Posted

Study publicly available on registry

June 4, 2020

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2021

Completed
Last Updated

November 24, 2020

Status Verified

November 1, 2020

Enrollment Period

1.9 years

First QC Date

May 26, 2020

Last Update Submit

November 20, 2020

Conditions

Keywords

continuous glucose monitoringcontinuous subcutaneous insulin infusionhyperglycemiacorrection bolus

Outcome Measures

Primary Outcomes (1)

  • Time to stabilization of rising blood sugar by CGM after correction bolus

    Time (in minutes) to stabilization of rising blood sugar (GPP) by CGM after correction bolus during the final 2 week maintenance period. Two categories of correction dose will be analyzed: 1) those following an isolated correction dose (taken independently of a meal dose), and 2) those taken as part of a combination bolus with a meal dose.

    2 weeks

Secondary Outcomes (8)

  • Incidence of early hypoglycemia

    25 weeks

  • Change in Insulin Sensitivity Factor

    25 weeks

  • Change in Insulin On Board

    25 weeks

  • GlycoMark differences between arms

    25 weeks

  • HbA1c differences between arms

    25 weeks

  • +3 more secondary outcomes

Study Arms (2)

No Intervention: Conventional Insulin Aspart (NovoLog®)

NO INTERVENTION

In the aspart group, the subject will only take aspart through the their pump. This study population will have an established expertise in diabetes self-management with previous knowledge of insulin pump therapy and Dexcom Continuous Glucose Monitoring (CGM). Allowing the subjects to use their insulin pumps for bolus insulin delivery, as they are accustomed, will minimize the chances of skipping meal boluses and correction doses. Aspart is put into their pump and delivered to their body through a small tube placed under your skin. In this NovoLog®-only treatment group, the subject will take aspart with each meal while your pump also gives you a slow, continuous dose of aspart for basal insulin. This treatment group is very similar (or even identical) to the treatment the subject was receiving prior to starting the study.

Faster Insulin Aspart (Fiasp®)

ACTIVE COMPARATOR

In the Fiasp group, the subject will only take aspart through the their pump. This study population will have an established expertise in diabetes self-management with previous knowledge of insulin pump therapy and Dexcom Continuous Glucose Monitoring (CGM). Allowing the subjects to use their insulin pumps for bolus insulin delivery, as they are accustomed, will minimize the chances of skipping meal boluses and correction doses. Fiasp is put into their pump and delivered to their body through a small tube placed under their skin. In this Fiasp treatment group, the subject will take fiasp with each meal while their pump also gives them a slow, continuous dose of aspart for basal insulin. This treatment group is very similar (or even identical) to the treatment the subject was receiving prior to starting the study.

Drug: Faster Insulin Aspart (Fiasp®)

Interventions

Subjects will be randomized either to use Fiasp or conventional insulin aspart in CSII. CSII settings (basal, bolus, and correction factors) will be optimized using a meal challenge for a 2-week run in period followed by a 10-week period of CSII use with the assigned insulin. After a 12-week maintenance period, each group will cross over to the other insulin (conventional insulin aspart or Fiasp) by CSII for a second 2-week optimization period followed by a 10-week treatment period.

Also known as: Conventional Insulin Aspart (NovoLog®)
Faster Insulin Aspart (Fiasp®)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male and female patients \> 18 years of age
  • Type 1 DM of \> 1 year duration
  • Use of any open loop insulin pump, Tandem T-Slim with Basal IQ, Insulet Omnipod Dash, or any other investigator-approved insulin pumps with Dexcom CGM G5, G6, or newer version for \> 6 months
  • Good baseline glycemic control (HbA1c \< 7.5%; low risk of hypoglycemia by CGM as defined by Dexcom Clarity report)
  • No episodes of severe hypoglycemia in the previous 3 months
  • Pump download shows regular meal bolusing, accurate carbohydrate counting ability, and willingness to use exercise markers in Dexcom
  • CGM download shows regular use (\>85% of time) and regular calibration if using G5 sensor (G6 requires no calibration)
  • Females using adequate contraception

You may not qualify if:

  • Use of CGM other than Dexcom G5 or G6 or a newer Dexcom CGM version
  • Suboptimal baseline glycemic control (HbA1c \> 7.5%)
  • Pump or CGM download shows suboptimal use of devices (lack of meal boluses, frequent overrides of pump, excessive pump suspension, inadequate calibration or inconsistent usage of CGM)
  • Serious comorbidities including CVD with recent event, actively treated malignancy, renal dysfunction with eGFR \< 45 ml/min, or any other condition which in the opinion of the investigator would preclude subject's ability to participate in trial
  • Females unwilling to use contraception, planning pregnancy or breastfeeding
  • Use of any other glucose-lowering agents than insulin
  • Hypersensitivity to insulin aspart or one of the excipients in faster insulin aspart
  • Known diabetic gastroparesis

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mountain Diabetes and Endocrine Center

Asheville, North Carolina, 28803, United States

RECRUITING

Related Publications (6)

  • Bode BW, Johnson JA, Hyveled L, Tamer SC, Demissie M. Improved Postprandial Glycemic Control with Faster-Acting Insulin Aspart in Patients with Type 1 Diabetes Using Continuous Subcutaneous Insulin Infusion. Diabetes Technol Ther. 2017 Jan;19(1):25-33. doi: 10.1089/dia.2016.0350. Epub 2017 Jan 5.

    PMID: 28055230BACKGROUND
  • Aleppo G, Laffel LM, Ahmann AJ, Hirsch IB, Kruger DF, Peters A, Weinstock RS, Harris DR. A Practical Approach to Using Trend Arrows on the Dexcom G5 CGM System for the Management of Adults With Diabetes. J Endocr Soc. 2017 Nov 20;1(12):1445-1460. doi: 10.1210/js.2017-00388. eCollection 2017 Dec 1.

    PMID: 29344577BACKGROUND
  • Heise T, Pieber TR, Danne T, Erichsen L, Haahr H. A Pooled Analysis of Clinical Pharmacology Trials Investigating the Pharmacokinetic and Pharmacodynamic Characteristics of Fast-Acting Insulin Aspart in Adults with Type 1 Diabetes. Clin Pharmacokinet. 2017 May;56(5):551-559. doi: 10.1007/s40262-017-0514-8.

    PMID: 28205039BACKGROUND
  • Russell-Jones D, Bode BW, De Block C, Franek E, Heller SR, Mathieu C, Philis-Tsimikas A, Rose L, Woo VC, Osterskov AB, Graungaard T, Bergenstal RM. Fast-Acting Insulin Aspart Improves Glycemic Control in Basal-Bolus Treatment for Type 1 Diabetes: Results of a 26-Week Multicenter, Active-Controlled, Treat-to-Target, Randomized, Parallel-Group Trial (onset 1). Diabetes Care. 2017 Jul;40(7):943-950. doi: 10.2337/dc16-1771. Epub 2017 Mar 29.

    PMID: 28356319BACKGROUND
  • Bergenstal RM, Garg S, Weinzimer SA, Buckingham BA, Bode BW, Tamborlane WV, Kaufman FR. Safety of a Hybrid Closed-Loop Insulin Delivery System in Patients With Type 1 Diabetes. JAMA. 2016 Oct 4;316(13):1407-1408. doi: 10.1001/jama.2016.11708. No abstract available.

    PMID: 27629148BACKGROUND
  • Klonoff DC, Evans ML, Lane W, Kempe HP, Renard E, DeVries JH, Graungaard T, Hyseni A, Gondolf T, Battelino T. A randomized, multicentre trial evaluating the efficacy and safety of fast-acting insulin aspart in continuous subcutaneous insulin infusion in adults with type 1 diabetes (onset 5). Diabetes Obes Metab. 2019 Apr;21(4):961-967. doi: 10.1111/dom.13610. Epub 2019 Jan 13.

    PMID: 30537180BACKGROUND

MeSH Terms

Conditions

Diabetes Mellitus, Type 1Hyperglycemia

Interventions

Insulin Aspart

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesAutoimmune DiseasesImmune System Diseases

Intervention Hierarchy (Ancestors)

Insulin, Short-ActingInsulinsPancreatic HormonesPeptide HormonesHormonesHormones, Hormone Substitutes, and Hormone AntagonistsPeptidesAmino Acids, Peptides, and Proteins

Central Study Contacts

Wendy S Lane, MD

CONTACT

Melinda L Buford, RN, BSN

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Masking Details
This is an open-label crossover trial. Subjects will be randomized to treatment sequence (Fiasp then NovoLog or NovoLog then Fiasp), each for a 12-week treatment period, by CSII. Randomization sequence will be determined by computerized randomization program. All patients will receive both treatments unless they drop out. Dropouts are unlikely since the participants are all regular continuing patients of the site's clinical practice.
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: This is a 25-week open-label prospective single center 2 arm crossover trial consisting of a CSII settings (basal, bolus, and correction factors) will be optimized for a 2-week run in period followed by a 10-week period of CSII use with the assigned insulin. After a 12-week maintenance period, each group will cross over to the other insulin (conventional insulin aspart or Fiasp) by CSII for a second 2-week optimization period followed by a 10-week treatment period.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Wendy Lane, MD, Principal Investigator

Study Record Dates

First Submitted

May 26, 2020

First Posted

June 4, 2020

Study Start

March 27, 2019

Primary Completion

March 1, 2021

Study Completion

March 1, 2021

Last Updated

November 24, 2020

Record last verified: 2020-11

Data Sharing

IPD Sharing
Will share

Data and statistical analysis will be available to any researcher with appropriate request

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
post-study, up to 5 years
Access Criteria
email Principal Investigator

Locations