Skip to content
Clinical Trials – home
Not recruiting

Study on Latent Autoimmune Diabetes in Adults (LADA) Patients: Evaluating Diabetes Status 3 Years After Treatment with Glutamate Decarboxylase 2

Verified siteInvestigational
Clinical Trials Concierge

Prefer not to search? Our Concierge searches the trials for you.

What is this trial about?

A plain-language summary of the goals, design and what participants do

This clinical trial is focused on studying a type of diabetes known as Latent Autoimmune Diabetes in Adults (LADA). LADA is a form of diabetes that shares characteristics with both Type 1 and Type 2 diabetes. The treatment being investigated in this study is called GAD-alum, which is a suspension for injection containing a substance known as glutamate decarboxylase 2, human, recombinant. This treatment is administered through a method called intralymphatic use, which involves injecting the treatment into the lymph nodes.

The purpose of this study is to examine the long-term effects of GAD-alum on diabetes status and immune system parameters in individuals who have previously participated in a related study. Specifically, the study aims to determine if there are differences in diabetes status between individuals who carry a specific genetic marker, known as HLA-DR3DQ2, and those who do not. This will be assessed three years after the initial treatment with GAD-alum.

Participants in this study will undergo assessments to evaluate their diabetes status, focusing on their body's ability to produce insulin and maintain metabolic control. These assessments will help researchers understand the potential long-term benefits of GAD-alum treatment for people with LADA. The study is a follow-up to a previous trial, and it will provide valuable insights into the effectiveness of this treatment over an extended period.

The research process

The trial runs in 4 steps – from screening to follow-up. Each step says what happens and what the team monitors.

  1. Step 1

    Joining the study

    Participation requires a signed informed consent.

    Eligibility is limited to former participants of the GADinLADA study.

  2. Step 2

    Treatment administration

    The treatment involves the use of Diamyd, which is a suspension for injection.

    The active substance is glutamate decarboxylase 2, human, recombinant.

    The administration route is intralymphatic use.

  3. Step 3

    Monitoring and assessment

    The main objective is to assess differences in diabetes status, focusing on beta cell function and metabolic control.

    The assessment occurs 3 years after the initial treatment with GAD-alum.

  4. Step 4

    End of study

    The study is estimated to conclude by March 31, 2025.

    Primary endpoints include changes in diabetes status variables compared to baseline and 12 months after baseline in the previous GADinLADA study.

Who can join the trial?

4 criteria

  • You must have signed an informed consent form. This means you agree to participate in the study and understand what it involves.
  • You must have been a participant in the previous GADinLADA study. This is a specific study identified by the code EudraCT 2019-002692-34.
  • Both men and women can participate in this study.
  • The study is not open to vulnerable populations, which generally means groups that might need special protection or care.

Who cannot join the trial?

5 criteria

  • Individuals who have a different type of diabetes other than Latent Autoimmune Diabetes in Adults (LADA) cannot participate. LADA is a form of diabetes that occurs in adults and has some features of both type 1 and type 2 diabetes.
  • Participants who have not been part of the previous study called GADinLADA are excluded. This study involved treatment with a substance called GAD-alum.
  • People who are not within the specified age range for the study cannot join. The study is looking for participants within certain age groups.
  • Individuals who are not carriers of a specific genetic marker called HLA-DR3DQ2 are excluded. This marker is related to the immune system.
  • Participants who are considered part of a vulnerable population are not eligible. A vulnerable population includes groups who may need special protection or care.
Clinical Trials Concierge

Prefer not to search? Our Concierge searches the trials for you.

Tell us about your condition – we search every trial in Europe and connect you with the right site.

We usually reply within a few days

Verified sites

All sites with verified contact details – recruitment status may not be available; ask directly

Trial locations

Where you can join this trial

Countries are shaded by recruitment status. Click a recruiting country to ask about joining there.

Not recruiting
Not finding your country?

Not sure what to do next?

Joining a clinical trial can seem overwhelming. We guide you step by step, so you know exactly what to expect and how we support you through the process.

See the full process and FAQ

Investigated drugs

GAD-alum is a treatment used in the study to see if it can affect diabetes status and immune system parameters. It was previously used in the GADinLADA study, and this follow-up trial aims to observe its long-term effects, particularly in individuals with specific genetic markers (HLA-DR3DQ2). The treatment involves administering a protein called GAD (glutamic acid decarboxylase) combined with alum, which is a substance that helps the body respond to the protein. The goal is to see if this combination can help maintain or improve the function of insulin-producing cells in the pancreas, which are important for controlling blood sugar levels.

What is already known about the treatment

GAD-alum – This medication is administered through an injection directly into the lymph nodes, known as intranodal administration. It is currently being studied in clinical trials, particularly for its effects on Latent Autoimmune Diabetes in Adults (LADA). The main therapeutic indication is to potentially preserve beta cell function in individuals with LADA. At the molecular level, GAD-alum works by modulating the immune system, aiming to reduce the autoimmune attack on insulin-producing cells. It is classified as an immunomodulatory agent.

Investigated diseases

Latent Autoimmune Diabetes in Adults (LADA) – LADA is a form of diabetes that shares characteristics with both type 1 and type 2 diabetes. It typically occurs in adults and is characterized by the gradual onset of autoimmune destruction of insulin-producing beta cells in the pancreas. Unlike type 1 diabetes, which usually develops rapidly in children or young adults, LADA progresses more slowly and may initially be misdiagnosed as type 2 diabetes. Over time, individuals with LADA may experience a decrease in insulin production, leading to increased blood sugar levels. This condition often requires insulin therapy as the disease progresses. The autoimmune nature of LADA distinguishes it from type 2 diabetes, which is primarily related to insulin resistance.
Trial detailsLast updated 2 Oct 2026
Age18+ yearsPhasePhase IITrial ID2023-509021-53-00Estimated enrolment14 patientsSponsorNorwegian University Of Science And Technolology

sourced from the EU Clinical Trials Register and site verification

Want to learn more about this trial or check if you can participate?

Clinical Trials Concierge

Prefer not to search? Our Concierge searches the trials for you.

Tell us about your condition – we search every trial in Europe and connect you with the right site.

Legal notice · Published by CTIN POLAND sp. z o.o., ul. rtm. Witolda Pileckiego 67/109, 02-781 Warsaw, Poland · KRS 0001111334 · REGON 528919042 · NIP 9512598637

© 2026 Clinical Trials EU – European Clinical Trials Information Network

GDPR compliance, ISO 9001 and ISO 27001 certified (LL-C Certification)

On this site, “treatment” means an investigational medicine being studied in a clinical trial. Its safety and efficacy for the use being studied have not yet been confirmed, some participants may receive a placebo or a comparator medicine, and taking part does not guarantee any health benefit. The decision to take part is made by the doctor at the research site. This site is for information only and does not replace medical advice.

This service is not affiliated with the European Commission, the EMA, or the official CTIS system. Most information comes from publicly available international clinical-trial registries, supplemented by data from academic sites, national regulators and commercial sponsors. On this site, “treatment” and “therapy” mean a medicine being tested in a clinical trial. Its safety and effectiveness in the use being studied are not yet confirmed, some participants may receive a placebo or a comparator, and taking part does not guarantee a health benefit. The doctor at the research site decides who can take part. This site provides information, not medical advice. Certain content and visual elements on this website have been generated or enhanced using artificial intelligence (AI).