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Diabetes Mellitus, Type 1Phase 2IMPACTNCT04524949

IMCY-0098 Proof of ACtion in Type 1 Diabetes (IMPACT Study)

A Phase 2 study testing IMCY-0098 450 μg and IMCY-0098 1350 μg in people with Diabetes Mellitus, Type 1, run by Imcyse SA at 29 sites in 8 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The IMPACT study is a study to test a new experimental drug, IMCY-0098, for the treatment of type 1 diabetes (T1D). In most people with type 1 diabetes, the pancreas loses its ability to make insulin because some cells of the body's own immune system mistakenly attack and destroy the cells in the pancreas that produce… Read more about this study

Who is it for?
Ages 18 to 44 years
Conditions the study is for
Diabetes Mellitus, Type 1
What is being tested?
IMCY-0098 450 μg and IMCY-0098 1350 μg
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
110 participants
Where
29 sitesin 8 countries
Study dates
29 Dec 2020to 29 May 2024
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 44 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Have given written informed consent.
  • Participants aged ≥ 18 years and < 45 years at the time of consent
  • Have a diagnosis of T1D within maximum 9 weeks at screening (date of the first insulin injection)
  • Must have at least one or more diabetes-related autoantibodies present at screening (GAD65, IA-2, or ZnT8)
  • Must have random C-peptide levels ≥ 200 pmol/L measured at screening
  • Must be Human Leukocyte Antigen (HLA) DR4 positive to participate in the main study OR HLA DR4 negative but HLA DR3 positive to participate in the substudy
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  • Be willing to comply with intensive diabetes management
  • Be treated with insulin therapy in accordance with the local standard of care
  • Males with reproductive potential must agree to use adequate contraception up to 90 days after the completion of the last treatment. This includes:
  • Barrier contraception (condom and spermicide) or
  • True abstinence (where this is in accordance with the participants preferred and usual lifestyle)
  • All females must have a negative serum pregnancy test at screening. Women sexually active and of childbearing potential must agree to use a highly effective contraception method from screening up to 90 days after last treatment with the investigational product
  • (US ONLY) Have HbA1c levels ≤ 9.5% prior to randomization

Who cannot join

  • Clinically significant abnormal full blood count (FBC), renal function or liver function at screening including
  • 1.1. Be immunodeficient or have any clinically significant chronic lymphopenia: Leukopenia (< 3,000 leukocytes /μL), neutropenia (<1,500 neutrophils/μL), lymphopenia (<800 lymphocytes/μL), or thrombocytopenia (<100,000 platelets/μL)
  • 1.2. Evidence of renal dysfunction with serum creatinine greater than 1.5 times the upper limit of normal OR (US ONLY) estimated Glomerular Filtration Rate (eGFR) calculated by Chronic Kidney Disease Epidemiology Collaboration (CKD-Epi) <90 mL/min per 1.73 m2 in absence of other signs of CKD or rapidly progressing renal disease
  • 1.3. Evidence of liver dysfunction with aspartate aminotransferase (AST) or alanine transaminase (ALT) greater than 3 times the upper limits of normal or (US ONLY) total bilirubin ≥ 2x Upper Limit of Normal (ULN) or Alkaline phosphatase ≥ 2x ULN. For participants presenting with values above ULN but below above threshold for these parameters, the underlying reason should be investigated by the site team to exclude liver disease. Patients for which a liver disease would be diagnosed will be excluded from the study.
  • Participants with elevated unconjugated bilirubin (Gilbert's syndrome) are eligible if bilirubin is ≤ 3 times the upper limits of normal and hepatic enzymes and function are otherwise normal (AST/ALT/Alkaline phosphatase within ULN), and there is no evidence of hemolysis
  • Have signs or symptoms of serious active infection requiring IV antibiotics and/or hospitalization at study entry
Show all 26Show fewer
  • Have signs or symptoms of active COVID infection or a positive COVID PCR test during the screening period
  • Have received any live attenuated vaccine within 3 months prior to the first planned administration of the study product (which includes, but is not limited to: oral poliomyelitis vaccine, measles-mumps-rubella vaccine, yellow fever vaccine, Japanese encephalitis vaccine, dengue vaccine, rotavirus vaccine, varicella vaccine, live-attenuated zoster vaccine, Bacillus Calmette-Guérin [BCG] vaccine, oral typhoid vaccine)
  • Be currently pregnant or lactating, or anticipate getting pregnant until at least 24 weeks after last study drug administration
  • Require the use of immunosuppressive agents including chronic use of systemic steroids. Topical, inhalational or intranasal corticosteroids are allowed
  • Have evidence of current or past human immunodeficiency virus (HIV), Hepatitis B or Hepatitis C infection
  • Presence of any uncontrolled disease (including uncontrolled autoimmune disease) or abnormal clinical laboratory results that may interfere with study conduct as judged by the investigator
  • History of, or current malignancy (except excised basal cell skin cancer)
  • Current or ongoing use of non-insulin pharmaceuticals that affect glycaemic control within 7 days prior to screening visit
  • Active participation in another T1D treatment study or any investigational intervention study in the previous 30 days or (US ONLY) received gene therapy in the past
  • Known hypersensitivity to any component of the drug product
  • CRO or Sponsor employees or employees under the direct supervision of the Investigator and/or involved directly in the study
  • Be diagnosed with Latent Autoimmune Diabetes in Adults (LADA)
  • (US ONLY) History or current evidence of hematologic condition that would make HbA1c uninterpretable including:
  • 15.1. Grade 1 anemia, defined as: Hemoglobin (Hb) < Lower Limit of Normal (LLN) - 10.0 g/dL or < LLN - 6.2 mmol/L or < LLN - 100 g/L
  • 15.2. Hemoglobinopathy, with the exception of sickle cell trait or thalassemia minor; or chronic or recurrent hemolysis
  • 15.3. Donation of blood or blood products to a blood bank, blood transfusion or participation in a clinical study requiring withdrawal of > 400 mL of blood during the 90 days prior to the Screening visit
  • 15.4. Significant iron deficiency anemia
  • 15.5. Heart malformations or Vaso-Occlusive Crisis (VOC) leading to increased turnover of erythrocytes
  • (US ONLY) Current evidence of hypertension defined as the mean (average) of Diastolic Blood Pressure (DBP) > 89 mm Hg or Systolic Blood Pressure (SBP) > 129 mm Hg based on 3 consecutive readings at least 2 minutes apart
  • (US ONLY) History or current evidence of active drug, chemical or alcohol dependency.

Trial locations and contacts

29 sites in 8 countries.

29 sites in 8 countries

United Kingdom11 sites
  • Addenbrooke's Hospital

    Cambridge

  • University Hospital of Wales

    Cardiff

  • Royal Infirmary of Edinburgh

    Edinburgh

  • Royal Devon and Exeter Hospital

    Exeter

  • St James´s University Hospital

    Leeds

  • Leicester General Hospital

    Leicester

  • Guy's and St Thomas' Hospital

    London

  • Royal London Hospital

    London

  • St George's Hospital

    London

  • Royal Victoria Infirmary

    Newcastle

  • Churchill Hospital

    Oxford

Other trials in United Kingdom

United States4 sites
  • Barbara Davis Center

    Aurora, Colorado, 80045

  • University of Alabama at Birmingham

    Birmingham, Alabama, 35205

  • Joslin Diabetes Center

    Boston, Massachusetts, 02215

  • University of Chicago

    Chicago, Illinois, 60637

Other trials in United States

Australia4 sites
  • Princess Alexandra Hospital

    Brisbane

  • Royal Melbourne Hospital

    Melbourne

  • St. Vincent's Hospital

    Melbourne

  • Royal North Shore Hospital

    Sydney

Other trials in Australia

Belgium3 sites
  • Université Libre de Bruxelles - Hôpital Erasme - ULB

    Brussels

  • UZ Brussels

    Brussels

  • Katholieke Universiteit Leuven UZ Gasthuisberg

    Leuven

Other trials in Belgium

Lithuania3 sites
  • Hospital of Lithuanian University of Health Sciences Kauno Klinikos

    Kaunas

  • Klaipeda university hospital

    Klaipėda

  • Vilnius university hospital Santaros klinikos

    Vilnius

Other trials in Lithuania

Italy2 sites
  • Ospedale San Raffaele S.r.l.

    Milan

  • AOU Pisana - Ospedale Cisanello

    Pisa

Other trials in Italy

Slovenia1 site
  • UMC - University Children's Hospital

    Ljubljana

Other trials in Slovenia

Sweden1 site
  • Department of clinical sciences, CRC/Malmö, Lund University

    Lund

Other trials in Sweden

About this study

Official title: A Phase IIa, Randomized, Double-blind, Dose Comparison, Placebo-controlled, Multi-centre Clinical Trial to Evaluate the Immune Signature of the Treatment With the Imotope IMCY-0098 and Its Effect on the Preservation of Beta-cell Function in Adult Patients With a Recent Onset Type 1 Diabetes

The IMPACT study is a study to test a new experimental drug, IMCY-0098, for the treatment of type 1 diabetes (T1D).

In most people with type 1 diabetes, the pancreas loses its ability to make insulin because some cells of the body's own immune system mistakenly attack and destroy the cells in the pancreas that produce insulin (islet beta-cells).

Read more

The study drug IMCY-0098 is being developed to stop the body's own immune system attacking and destroying the insulin-producing cells. When injected, it will induce new immune cells that will specifically destroy the bad immune cells responsible for the damage to the pancreas.

IMCY-0098 has previously been tested on recently diagnosed type 1 diabetes patients in the first clinical study between 2017 and 2019 to collect information on the safety of IMCY-0098. The next step is to test the best dose and the best number of injections that show the drug can give a benefit. Two doses of IMCY-0098 will be tested and they will be compared to a placebo. Safety information will also be collected during the study for all the participants.

Read the detailed description

The main study will include 84 HLA DR4+ patients. In addition, up to 24 HLA DR4-/DR3+ patients will be included in a mechanistic substudy.

Being tested
IMCY-0098 450 μg, IMCY-0098 1350 μg, Placebo
Keywords
Diabetes Mellitus Type 1, Autoimmune disease, Immunotherapy, Diabetes treatment
Medical subject headings
Diabetes Mellitus, Type 1, Autoimmune Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • IMCY-0098 450 μgDrug

    Also called Imotope

    Small synthetic peptide for SC admin. Solvent: alum hydroxide

  • IMCY-0098 1350 μgDrug

    Also called Imotope

    Small synthetic peptide for SC admin. Solvent: alum hydroxide

  • PlaceboDrug

    Solvent: alum hydroxide

Study groups in NCT04524949
Study groupRoleWhat they receive
IMCY-0098, low doseExperimentalThe dose A (Cohort 1) will consist of subcutaneous administrations of 450 µg of the peptide in two separate injections of 225 µg each (500 µL each).
Receives: Drug: IMCY-0098 450 μg
IMCY-0098, high doseExperimentalThe dose B (Cohort 2) will consist of subcutaneous administrations of 1350 µg of the peptide in two separate injections of 675 µg each (500 µL each).
Receives: Drug: IMCY-0098 1350 μg
PlaceboPlacebo comparatorParticipants randomized to placebo will receive subcutaneous administrations of identical volumes of placebo solution to maintain study blind.
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in stimulated C-peptide response during the first two hours of a mixed meal tolerance test (MMTT) from baseline to 48 weeks between IMCY-0098 and placebo groups

    The area under the stimulated C-peptide response curve over the first two hours of a MMTT

    Measured: From baseline to 48 weeks

Secondary outcomes (12)
  1. Changes in stimulated C-peptide response during the first two hours of a MMTT for the two doses of IMCY-0098 versus placebo

    The area under the stimulated C-peptide response curve over the first two hours of a MMTT

    Measured: From baseline to 24 months

  2. Difference in Dried Blood Spots (DBS) fasted C-peptide between treatment and placebo groups

    DBS C-peptide measurements

    Measured: From baseline to 48 weeks

  3. Changes in DBS C-peptide measurements at each visit comparing each dose with placebo

    The DBS C-peptide responses at each visit

    Measured: From baseline to 24 months

  4. Effects of each dose of IMCY-0098 on HbA1c

    Change in HbA1c

    Measured: From baseline to 24 months

  5. Effects of each dose of IMCY-0098 on hypoglycaemic events

    Number of treatment-emergent severe hypoglycaemic episodes

    Measured: From baseline to 24 months

  6. Effects of each dose of IMCY-0098 on diabetic ketoacidosis (DKA) episodes

    Number of treatment-emergent episodes of DKA

    Measured: From baseline to 24 months

  7. Effects of each dose of IMCY-0098 on daily total insulin dose

    Change in insulin requirements as the daily total dose (three days average) in units per kg body weight

    Measured: From baseline to 24 months

  8. Effects of each dose of IMCY-0098 on Continuous Glucose Monitoring (CGM) measures

    CGM time in range (70-180 mg/dL, 3.9- 10.0 mmol/L), time above range (>180 mg/dL, >10.0 mmol/L), time below range (<70 mg/dL, < 3.9 mmol/L) during 10 days compared to the reference period (first 10 days after randomization)

    Measured: From baseline to 24 months

  9. Impact of IMCY-0098 at each dose on autoantibodies against GAD65, IA 2, ZnT8 and insulin over time

    Change in T1D associated autoantibodies (GADA, IAA, IA-2A and ZnT8A)

    Measured: From baseline to 24 months

  10. To evaluate the safety features of IMCY-0098 during treatment period

    Occurrence, intensity and relationship of any listed injection site and systemic AEs during a 7-day follow-up period after each dose

    Measured: Up to 7 days after the last dose

  11. To evaluate the safety features of IMCY-0098 during the whole study duration

    Occurrence, intensity and relationship of any unlisted injection site and AEs and occurrence and relationship of all SAEs and abnormality in physical examination, vital signs, 12-lead ECG

    Measured: Up to 48 weeks

  12. To evaluate the safety features of IMCY-0098 on lymphocytes ratio

    Measure of CD4+/CD8+ lymphocytes ratio

    Measured: Up to 48 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Aug 2020
  2. Study start29 Dec 2020
  3. Primary completion26 Jan 2024
  4. Study completion29 May 2024

Why it stopped: No efficacy at primary analysis after 1 year. Long term follow-up stopped

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
110 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04524949
Sponsor's protocol ID
IMCY-T1D-003
Other IDs
2020-001317-20
Acronym
IMPACT
Status last verified
Jun 2024
First submitted
11 Aug 2020
Last updated
24 Jun 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing IMCY-0098 450 μg and IMCY-0098 1350 μg in people with Diabetes Mellitus, Type 1, run by Imcyse SA at 29 sites in 8 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 13 inclusion and 26 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 24 Jun 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 29 sites in United Kingdom, United States, Australia, Belgium, Lithuania and 3 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: No efficacy at primary analysis after 1 year. Long term follow-up stopped). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in stimulated C-peptide response during the first two hours of a mixed meal tolerance test (MMTT) from baseline to 48 weeks between IMCY-0098 and placebo groups (time frame: From baseline to 48 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Jun 2024.

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