NCT03668470

Brief Summary

Some patients with type 1 diabetes (T1D) can still have some remaining insulin-positive cells in the pancreas and secrete little amounts of insulin. Despite the presence of residual beta cells, the HbA1C levels remain at high levels due to functional defects of insulin secretion associated with glucotoxicity. Previous trials have indicated that treatment with a Glucagon-like peptide 1 (GLP-1 )receptor agonist in T1D with some residual beta-cell function might improve glycemic control, reduce dose of insulin and risk of hypoglycemia. The general hypothesis of DIAMOND-GLP1 is that GLP1-R agonists will improve blood glucose After initial screening to select insulin microsecretors and a run-in period of one month, patients will be randomized into two arms and followed in parallel for 24 weeks :

  • Experimental group receiving 1.5 mg Dulaglutide s.c weekly in addition to their usual insulin regimen
  • Control group receiving placebo s.c weekly in addition to their usual insulin regimen. The primary endpoint is HbA1c value at 24 weeks

Trial Health

87
On Track

Trial Health Score

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

Enrollment
45

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started Jan 2019

Geographic Reach
1 country

7 active sites

Status
completed

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

First Submitted

Initial submission to the registry

September 11, 2018

Completed
1 day until next milestone

First Posted

Study publicly available on registry

September 12, 2018

Completed
5 months until next milestone

Study Start

First participant enrolled

January 31, 2019

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 3, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 3, 2021

Completed
Last Updated

July 8, 2021

Status Verified

July 1, 2021

Enrollment Period

2 years

First QC Date

September 11, 2018

Last Update Submit

July 7, 2021

Conditions

Keywords

type 1 diabetesinsulin microsecretiondulaglutiderandomizeddouble-blind placebo-controlled trial

Outcome Measures

Primary Outcomes (1)

  • HbA1c level

    Blood level

    after 24 weeks of treatment

Secondary Outcomes (14)

  • AUC us C-peptide following a MMT

    before and after 24 weeks of treatment

  • Glucagon levels fasting and following a MMT

    before and after 24 weeks of treatment

  • AUC us C-peptide over AUC blood glucose levels following a MMT

    before and after 24 weeks of treatment

  • Daily percent times spent with continuous glucose measurements (CGM) readings between 4 and 10mmol/l, above and below this range

    the run-in period (1 month) and after 24 weeks of treatment

  • Daily insulin doses and basal/ prandial ratio

    : before and after 24weeks of treatment

  • +9 more secondary outcomes

Study Arms (2)

Dulaglutide

EXPERIMENTAL

Experimental group receiving 1.5 mg Dulaglutide subcutaneously weekly in addition to their usual insulin regimen during 24 weeks

Drug: Dulaglutide

placebo

PLACEBO COMPARATOR

Control group receiving placebo subcutaneously weekly in addition to their usual insulin regimen during 24 weeks

Drug: Placebo

Interventions

Dulaglutide 1.5mg : One injection per week during 24 weeks

Dulaglutide

Placebo: one injection per week during 24 weeks

placebo

Eligibility Criteria

Age20 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Adult patients with T1D\> 4years, with age range 20-60years
  • Diabetes onset after the age of 15years
  • Duration of diabetes \<15 years
  • Treated with continuous sub-cutaneous insulin infusions (CSI) or multiple daily injections of insulin (MDI)
  • Measuring their blood sugar at least four times daily
  • Glycated hemoglobin (HbA1C) at screening \>7 and \<10%
  • kg/m2 \<BMI\<30.0kg/m2
  • Patients with childbearing potential should use effective contraception, defined as methods with a failure rate ≤ 2 % per year (OMS 2011) during the study.
  • Patients who gave its written informed consent to participate to the study
  • Patients affiliated to a social insurance regime
  • Randomization criteria:
  • Patients with fasting ultra-sensitive (us) C-peptide above 15pmol/l

You may not qualify if:

  • Patients with type 2 diabetes (T2D)
  • Hypersensitivity to dulaglutide and/or any of its excipients
  • Subjects with history of severe hypoglycemia or recent (\< 6 months) history of diabetic ketoacidosis
  • History of gastrointestinal disease with prolonged (\> 3 months) nausea or vomiting, liver or kidney diseases, pancreatitis, thyroid medullary cancer or familial history of multiple endocrine neoplasia type 2
  • Estimated glomerular filtration rate\<60ml/min/ 1.73m2 (CKD-EPI method)
  • Congestive heart failure
  • Any uncontrolled disease, cancers essentially
  • Chronic use of paracetamol containing products, which may falsely raise sensor glucose readings
  • Use of tricyclic antidepressant, selective serotonin reuptake inhibitor, triptans, neuroleptic drugs and glucocorticoid.
  • Patient who participated in another clinical trial on experimental drug in the previous 30 days
  • Patients of childbearing potential who are not using adequate contraception; Female patients who are pregnant or lactating.
  • Gastric bypass surgery
  • Patients under guardianship

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (7)

Service d'Endocrinologie, Maladies Métaboliques et Nutrition, CHU Grenoble, Hopital de la Tronche

La Tronche, 38700, France

Location

Département d''Endocrinologie, Diabétologie, Nutrition ; CHU Montpellier ; Hôpital Lapeyronie, Avenue du Doyen Giraud

Montpellier, 34295, France

Location

Service d'Endocrinologie, Maladies Métaboliques et Nutrition,CHU Nantes,Hôpital Nord Laennec,Bd Jacques-Monod,Saint-Herblain

Nantes, 44093, France

Location

Service de Diabétologie et Maladies Métaboliques, Assistance Publique des Hôpitaux de Paris ;Hôpital Cochin, 27 rue du Faubourg Saint-Jacques

Paris, 75014, France

Location

Service d'Endocrinologie, Diabétologie, Maladies de la Nutrition, Hospices Civils de Lyon, Centre hospitalier Lyon-Sud

Pierre-Bénite, 69495, France

Location

Service de Diabétologie Maladies Métaboliques et Nutrition ; CHU Toulouse, Pôle cardiovasculaire et métabolique, Hôpital Rangueil ; 1, avenue du Professeur Jean Poulhès - TSA 50032

Toulouse, 31059, France

Location

Service de Diabétologie, Maladies Métaboliques, Nutrition ; CHU Nancy ; Technopôle Nancy-Brabois ; Rue du Morvan,

Vandœuvre-lès-Nancy, 54500, France

Location

MeSH Terms

Conditions

Diabetes Mellitus, Type 1

Interventions

dulaglutide

Condition Hierarchy (Ancestors)

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

Study Officials

  • Charles THIVOLET

    Hospices Civils de Lyon

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Multicentric, investigator-initiated, randomized, double-blinded, therapeutic clinical trial, placebo-controlled, two arm parallel group intervention trial during 24 weeks, phase II.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 11, 2018

First Posted

September 12, 2018

Study Start

January 31, 2019

Primary Completion

February 3, 2021

Study Completion

February 3, 2021

Last Updated

July 8, 2021

Record last verified: 2021-07

Locations