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Multiple SclerosisPhase 1NCT06677710

IDP-023 g-NK Cells Plus Ocrelizumab in Patients With Progressive Multiple Sclerosis

A Phase 1 study testing IDP-023, Ocrelizumab and Interleukin-2 in people with Multiple Sclerosis and Primary Progressive Multiple Sclerosis (PPMS), run by Indapta Therapeutics, INC. at 5 sites in United States.

Suspended

Paused. Enrolment is on hold for now and may resume.

Official record
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Trial summary

This is an open label, Phase 1b, multiple ascending dose, and dose-expansion study of IDP-023 administered in combination with interleukin-2 (IL-2) and ocrelizumab to evaluate the safety, tolerability, and biologic activity on autoreactive immune cells in patients with refractory progressive multiple sclerosis. Read more about this study

Who is it for?
Ages 18 to 65 years
What is being tested?
IDP-023, Ocrelizumab and Interleukin-2
Could I receive a placebo?
No, everyone receives an active treatment
How many people
34 participants
Where
5 sitesUnited States
Study dates
30 Jun 2026to 31 Dec 2028
Phase
Phase 1
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 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Confirmed diagnosis of primary or non-active secondary progressive MS (SPMS) based on the 2017 revisions of the McDonald criteria.
  • Dosed with ocrelizumab within the prior 6 months.
  • Expanded Disability Status Scale (EDSS) at screening from 3.0 to 6.5 points.
  • Score of ≥2.0 on the Functional Systems (FS) scale for the pyramidal system that is due to lower extremity findings.
  • Disease duration from the onset of MS symptoms:
  • Less than 15 years in patients with an EDSS at screening >5.0.
  • Less than 10 years in patients with an EDSS at screening ≤5.0.

Who cannot join

  • Relapsing remitting MS at screening or active SPMS at screening.
  • Inability to complete an MRI.
  • Contraindication for gadolinium.
  • Known presence of other neurological disorders, including but not limited to the following:
  • History or known presence of CNS or spinal cord tumor (e.g., meningioma, glioma).
  • History or known presence of infectious causes of myelopathy (e.g., syphilis, Lyme disease, Human T-lymphotropic virus 1 [HTLV-1], herpes zoster myelopathy).
Show all 9Show fewer
  • History or known presence of systemic autoimmune disorders potentially causing progressive neurologic disease (e.g., lupus, antiphospholipid antibody syndrome, Sjögren's syndrome, Behçet's disease).
  • Impaired cardiac function or history of clinical significant cardiac disease.
  • Human immunodeficiency virus (HIV) infection, active hepatitis B infection, or hepatitis C infection.

Trial locations and contacts

5 sites in 1 country.

5 sites in 1 country

United States5 sites
  • University of Colorado Hospital

    Aurora, Colorado, 80045

  • Kansas University Medical Center

    Kansas City, Kansas, 66160

  • AdventHealth Orlando - Adventist Health System/Sunbelt, Inc.

    Orlando, Florida, 32803

  • Washington University in St. Louis

    St Louis, Missouri, 63130

  • Stanford University

    Stanford, California, 94305

Other trials in United States

About this study

Official title: A Phase 1B Study of IDP-023 g-NK Cells Plus Ocrelizumab in Patients With Refractory Primary and Secondary Progressive Multiple Sclerosis

This is an open label, Phase 1b, multiple ascending dose, and dose-expansion study of IDP-023 administered in combination with interleukin-2 (IL-2) and ocrelizumab to evaluate the safety, tolerability, and biologic activity on autoreactive immune cells in patients with refractory progressive multiple sclerosis.

Read the detailed description

IDP-023 is an off-the-shelf product made from allogeneic g-natural killer (NK) cells, which are a natural subset of NK cells that develop over the course of an immune response in people who have been exposed to the human cytomegalovirus (HCMV). These cells may be particularly effective at targeting and killing the cells that cause the immune system to attack the nervous system in multiple sclerosis (MS). By killing these harmful cells, g-NK cells may help to slow down or potentially stop the progression of MS. When combined with other approved treatments like ocrelizumab, g-NK cells might offer even greater benefit for people with MS.

This is an open label, Phase 1b, multiple ascending dose, and dose-expansion study of IDP- 023 administered in combination with IL-2 and ocrelizumab to evaluate the safety, tolerability, and biologic activity on autoreactive immune cells in patients with primary progressive multiple sclerosis (PPMS) or non-active secondary progressive multiple sclerosis (SPMS).

The study is divided into Part 1, a dose escalation phase, and Part 2, an expansion phase.

Part 1 (Escalation Period): The primary objectives of Part 1 are to define the safety of different dose levels of IDP-023 in combination with IL-2 and ocrelizumab and to define the recommended cell dose that will be used for Part 2 (recommended Part 2 dose; RP2D).

Part 2 (Expansion Period): The objective of the Part 2 expansion phase is to assess the biologic activity of IDP-023 in combination with IL-2 and ocrelizumab on autoreactive immune cells in PPMS.

Being tested
IDP-023, Ocrelizumab, Interleukin-2, Cyclophosphamide, Fludarabine
Keywords
Progressive Multiple Sclerosis, Refractory Progressive Multiple Sclerosis, IDP-023, autoimmune disease, Cellular Therapy, MS, Natural Killer Cells
Medical subject headings
Multiple Sclerosis, Multiple Sclerosis, Chronic Progressive, Autoimmune Diseases of the Nervous System, Nervous System Diseases, Autoimmune Diseases, Demyelinating Diseases, Immune System Diseases, Demyelinating Autoimmune Diseases, CNS

What participants receive

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

  • IDP-023Drug

    NK cell therapy

  • OcrelizumabDrug

    Also called Ocrevus

    Anti-CD20 antibody therapy

  • Interleukin-2Drug

    Also called Proleukin

    Immune cytokine

  • CyclophosphamideDrug

    Lymphodepleting chemotherapy

  • FludarabineDrug

    Lymphodepleting chemotherapy

  • MesnaDrug

    Chemoprotectant

Study groups in NCT06677710
Study groupRoleWhat they receive
Part 1 (dose escalation): IDP-023 in combination with IL-2 and ocrelizumabExperimentalMS patients treated with multiple doses of IDP-023 in combination with IL-2 and ocrelizumab
Receives: Drug: IDP-023; Drug: Ocrelizumab; Drug: Interleukin-2; Drug: Cyclophosphamide; Drug: Fludarabine; Drug: Mesna
Part 2 (dose expansion): IDP-023 in combination with IL-2 and ocrelizumabExperimentalMS patients treated with the recommended dose of IDP-023 in combination with IL-2 and ocrelizumab
Receives: Drug: IDP-023; Drug: Ocrelizumab; Drug: Interleukin-2; Drug: Cyclophosphamide; Drug: Fludarabine; Drug: Mesna

What is being measured

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

  1. Incidence of AEs and SAEs - (Part 1)

    Escalation Period

    Measured: 1 year

  2. Incidence of dose-limiting toxicities (DLTs) of IDP-023 in combination with IL-2 and Ocrelizumab (Part 1)

    Escalation Period

    Measured: up to 21 days

  3. Change in cellular response of autoreactive immune cells to antigen (Part 2)

    Expansion Period

    Measured: 2 years

Secondary outcomes (7)
  1. Change in cellular response of autoreactive immune cells to antigen (Part 1)

    Escalation Period

    Measured: 2 year

  2. Incidence of AEs and SAEs - (Part 2)

    Expansion Period

    Measured: 2 years

  3. PK (PK; maximum drug concentration) of IDP-023 - (Part 1/2)

    Escalation and Expansion periods

    Measured: 2 years

  4. PK (area under the concentration-time curve) of IDP-023 - (Part 1/2)

    Escalation and Expansion periods

    Measured: 2 years

  5. PK (concentration reached by the drug immediately before the next dose is administered) of IDP-023 - (Part 1/2)

    Escalation and Expansion periods

    Measured: 2 years

  6. Time to onset of sustained disability progression over the treatment period, defined as an increase in Expanded Disability Status Scale (EDSS) - (Part 1/2)

    Escalation and Expansion periods

    Measured: 2 years

  7. Biologic activity of IDP-023 in the CSF over the treatment period - (Part 1/2) over the treatment period, defined as an increase in EDSS - (Part 1/2)

    Escalation and Expansion periods

    Measured: 2 years

Timeline

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

  1. First posted7 Nov 2024
  2. Study start30 Jun 2026 (estimated)
  3. Primary completion31 Dec 2026 (estimated)
  4. Study completion31 Dec 2028 (estimated)

Why it stopped: Business Reasons

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 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Model description
Multiple ascending dose and dose-expansion study of IDP-023 in combination with interleukin-2 (IL-2) and ocrelizumab.
Masking
None (open label)
Enrolment
34 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06677710
Sponsor's protocol ID
IDP023-2-101
Status last verified
Jan 2025
First submitted
5 Nov 2024
Last updated
30 Apr 2025
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 1 study testing IDP-023, Ocrelizumab and Interleukin-2 in people with Multiple Sclerosis and Primary Progressive Multiple Sclerosis (PPMS), run by Indapta Therapeutics, INC. at 5 sites in United States.

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 7 inclusion and 9 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: paused, as of the sponsor's last update on 30 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites in United States. 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. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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

Are results available for this study?

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?

Incidence of AEs and SAEs - (Part 1) (time frame: 1 year). The study lists 3 primary outcomes in all. 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 30 Apr 2025.

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