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Autoimmune Lymphoproliferative SyndromePhase 2NCT06730126

Study of the ITK Inhibitor Soquelitinib to Reduce Lymphoproliferation and Improve Cytopenias in Autoimmune Lymphoproliferative Syndrome (ALPS)-FAS Patients

A Phase 2 study testing Soquelitinib in people with Autoimmune Lymphoproliferative Syndrome, run by National Institute of Allergy and Infectious Diseases (NIAID) at 3 sites in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Background: Autoimmune lymphoproliferative syndrome (ALPS) is a rare disorder of the immune system caused by a mutation in the FAS gene. In ALPS, the body stores too many germ-fighting cells called lymphocytes. This can lead to an enlarged spleen and lymph nodes. Read more about this study

Who is it for?
Ages 16 to 120 years
Conditions the study is for
Autoimmune Lymphoproliferative Syndrome
What is being tested?
Soquelitinib
Could I receive a placebo?
No, everyone receives an active treatment
How many people
15 participants
Where
3 sitesUnited States
Study dates
10 Mar 2025to 1 Dec 2026
Phase
Phase 2
Are there results?
Not yet: the study is under way

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 16 to 120 years
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • To be eligible to participate in this study and to re-enroll, an individual must meet all the following criteria:
  • Aged >= 16 years.
  • Able to provide informed consent (for ages >= 18 years) or has a parent(s) or guardian(s) who can provide permission to participate on their behalf (for ages <18 years).
  • Has a documented diagnosis of ALPS-FAS.
  • Has clinical evidence of active disease, defined as at least one enlarged lymph node and/or enlarged spleen.
  • If currently on corticosteroid therapy, then dose is less than 20 mg/day (prednisone equivalent) and has been stable for at least 4 weeks.
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  • For participants to be seen at the NIH CC, co-enrolled on NIH protocol 93-I-0063.
  • Participants who can become pregnant or who can impregnate their partner must agree to either remain sexually abstinent or use two highly effective methods of contraception when engaging in sexual activities that can result in pregnancy, beginning 28 days before baseline until 3 months after the last dose. One method must be a barrier (eg, internal or external condom, cervical cap, or diaphragm). The second method may be any of the following:
  • 7a. Oral contraceptive pill or hormonal patch or ring.
  • 7b. Parenteral hormonal contraceptive implant.
  • 7c. Intrauterine device.

Who cannot join

  • An individual who meets any of the following criteria will be excluded from participation or re-enrollment in this study:
  • Profound grade 3 or 4 cytopenias that cannot be improved with immunomodulatory treatments prior to enrolling in the clinical trial and starting the study drug. Per investigator discretion, individuals on a single agent may be included if the dose is stable for 12 weeks at screening and is not expected to confer additive toxicity.
  • Renal impairment, defined as serum creatinine >1.5 mg/dL (or 133 micromol/L) or estimated glomerular filtration rate <60 mL/min/1.73 m^2.
  • Liver impairment, defined as bilirubin, alanine aminotransferase, or aspartate aminotransferase greater than 2.5 times the upper limit of normal.
  • History of EBV-associated lymphoma.
  • Active EBV infection with EBV load >300 copies/mL.
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  • Tuberculosis infection (active or latent) or undergoing tuberculosis treatment.
  • Infection with HIV or hepatitis B or C.
  • Current other invasive or systemic fungal, bacterial, or viral infection requiring therapy.
  • History of opportunistic infection within the previous 180 days.
  • History of invasive malignancy that required systemic therapy within the last 3 years.
  • Current use of moderate or strong cytochrome P450 isozyme (CYP)3A inhibitors or inducers that cannot be stopped before day 0.
  • Current use of P-glycoprotein (P-gp) inhibitors that cannot be stopped before day 0.
  • Known hypersensitivity or contraindication to CT contrast agent.
  • Pregnant or breastfeeding.
  • Any condition that, in the opinion of the study team contraindicates participation in this study.

Trial locations and contacts

3 sites in 1 country. Contact the study team or a site near you to ask about taking part.

Alanvin D Orpia, R.N. contact

(240) 550-3663

alanvin.orpia@nih.gov

V. Koneti Rao, M.D. contact

(301) 496-6502

kr191c@nih.gov

United States3 sites, 3 recruiting
  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892

    Alanvin Orpia, B.S.N., 240-669-2935, alanvin.orpia@nih.gov

    Recruiting
  • Texas Children's Hospital

    Houston, Texas, 77030

    Carl Allen, 832-824-4312, ceallen@txch.org

    Recruiting
  • The Children's Hospital of Philadelphia

    Philadelphia, Pennsylvania, 19104

    David Teachey, 267-426-5802, teacheyd@chop.edu

    Recruiting

Other trials in United States

About this study

Official title: A Phase 2a Study of the ITK Inhibitor Soquelitinib to Reduce Lymphoproliferation and Improve Cytopenias in Autoimmune Lymphoproliferative Syndrome (ALPS)-FAS Patients

Background:

Autoimmune lymphoproliferative syndrome (ALPS) is a rare disorder of the immune system caused by a mutation in the FAS gene. In ALPS, the body stores too many germ-fighting cells called lymphocytes. This can lead to an enlarged spleen and lymph nodes. Current treatments for ALPS can have many adverse effects. Better treatments for ALPS are needed.

Read more

Objective:

To test a study drug (soquelitinib) in people with ALPS.

Eligibility:

People aged 16 years and older with ALPS.

Design:

Participants will have 8 clinic visits and 6 remote visits within 1 year.

Participants will be screened. They will have a physical exam with blood and urine tests. Some may have tests of their lung function.

Soquelitinib is a tablet taken by mouth twice a day. Participants will record their doses and any symptoms on a paper or online form.

Blood tests and other procedures will be repeated during study visits. Three visits will include imaging scans. Participants will lie on a table that slides through a doughnut-shaped machine while X-rays capture pictures of the inside of their body.

Some participants may be able to remain in the study for a second year....

Read the detailed description

Study Description:

This is a multisite open-label phase 2a study to evaluate the safety, tolerability, and preliminary efficacy of the interleukin (IL)-2 inducible T-cell kinase (ITK) inhibitor soquelitinib for treating ALPS-FAS. This study will be conducted in two stages. In the first stage, following a background drug washout of up to 90 days, 8 participants will receive 200 mg of soquelitinib twice daily for up to 360 days, with approximately monthly study visits (in person or remote). A safety and futility interim analysis will be conducted after all 8 participants have had a computed tomography (CT) or positron emission tomography (PET)/CT scan at day 90 and have completed at least 80% of their study drug regimen. If at least one participant has a positive response to the study drug and there are no safety concerns among the 8 participants, then the study will proceed to stage 2, in which 6 new participants will be enrolled and, following a background drug washout of up to 90 days, receive the same dosage as stage 1 (200 mg twice daily for 360 days). Individual participation concludes at the end of the 360-day regimen.

Participants may re-enroll once in the study. They will repeat the whole study schedule except for the screening visit, but they will have a study drug washout period of up to 90 days with monthly visits during that time. Upon reaching pre-specified criteria, they will begin a second 360-day regimen of soquelitinib at 200 mg twice daily.

The primary endpoints will be assessed after all 6 participants of stage 2 have had a CT or PET/CT scan at day 90 and have completed at least 80% of their study drug regimen. The trial will automatically be determined a failure if safety concerns or lack of positive response prevent progression to stage 2.

Primary Objectives:

To determine the efficacy of soquelitinib in reducing spleen volume or target lymph node volume in people with ALPS-FAS.

Secondary Objective:

  1. To determine the efficacy of soquelitinib in improvement of lymphoproliferation and autoimmune disease, including cytopenias, in people with ALPS-FAS.
  2. To determine the safety and tolerability of soquelitinib in people with ALPS-FAS.

Primary Endpoints:

Reduction of spleen volume or target lymph node volume by 25% from baseline to day 90, assessed by CT or PET/CT scan.

Secondary Endpoints:

  1. Shrinkage in spleen volume from baseline to day 90.
  2. Shrinkage in target lymph node volume from baseline to day 90.
  3. Reduction of cytopenias by one severity level from baseline to day 90.
  4. Reduction in prednisone dosage.
  5. Grade 3 or 4 systemic infections within 360 days (first or second regimen).
  6. Clinically significant worsening of viral, mycobacterial, or fungal infection requiring new treatment or change of treatment by day 360 (first or second regimen).
  7. Any drug-related grade 3 or 4 adverse event (AE) that triggers a pause.
Being tested
Soquelitinib
Keywords
Autoimmune Lymphoproliferative Syndrome, Fas, Hypersplenism, Lymphoproliferation, Interleukin-2 Inducible T-cell Kinase, Soquelitinib, Targeted Treatment
Medical subject headings
Autoimmune Lymphoproliferative Syndrome, Autoimmune Lymphoproliferative Syndrome, Type IA, Hypersplenism

What participants receive

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

  • SoquelitinibDrug

    Soquelitinib is an ITK inhibitor in clinical development for treating relapsed/refractory T-cell lymphoma.

Study groups in NCT06730126
Study groupRoleWhat they receive
InterventionalExperimentalThe dosage for this study is 200 mg twice daily for up to 360 days. If the participant repeats they study they will receive the same dosage for up to an additional 360 days.
Receives: Drug: Soquelitinib

What is being measured

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

  1. Reduction of spleen volume or target lymph node volume by 25% from baseline to day 90, assessed by CT or PET/CT scan.

    To determine the efficacy of soquelitinib in reducing spleen volume or target lymph node volume in people with ALPS-FAS.

    Measured: Day 90

Secondary outcomes (7)
  1. Shrinkage in spleen volume from baseline to day 90.

    To determine the efficacy of soquelitinib in improvement in lymphoproliferation and autoimmune disease, including cytopenias, in people with ALPS-FAS.

    Measured: Day 90

  2. Shrinkage in target lymph node volume from baseline to day 90.

    To determine the efficacy of soquelitinib in improvement in lymphoproliferation and autoimmune disease, including cytopenias, in people with ALPS-FAS.

    Measured: Day 90

  3. Reduction of cytopenias by one severity level from baseline to day 90

    To determine the efficacy of soquelitinib in improvement in lymphoproliferation and autoimmune disease, including cytopenias, in people with ALPS-FAS and to determine the safety and tolerability of soquelitinib in people with ALPS-FAS.

    Measured: Day 90

  4. Reduction in prednisone dosage.

    To determine the efficacy of soquelitinib in improvement in lymphoproliferation and autoimmune disease, including cytopenias, in people with ALPS-FAS

    Measured: End of Study

  5. Grade 3 or 4 systemic infections within 360 days.

    To determine the safety and tolerability of soquelitinib in people with ALPS-FAS.

    Measured: Day 360

  6. Clinically significant worsening of viral, mycobacterial, or fungal infection requiring new treatment or change of treatment by day 360.

    To determine the safety and tolerability of soquelitinib in people with ALPS-FAS.

    Measured: End of Study

  7. Any drug-related grade 3 or 4 AE AE that triggers a pause.

    To determine the safety and tolerability of soquelitinib in people with ALPS-FAS.

    Measured: End of Study

Timeline

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

  1. First posted12 Dec 2024
  2. Study start10 Mar 2025
  3. Primary completion1 Dec 2026 (estimated)
  4. Study completion1 Dec 2026 (estimated)

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
15 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06730126
Sponsor's protocol ID
10001824
Other IDs
001824-I
Status last verified
9 Jun 2026
First submitted
11 Dec 2024
Last updated
3 Nov 2026
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Clinical, laboratory, imaging and demographic data.

Publications

  • Price S, Shaw PA, Seitz A, Joshi G, Davis J, Niemela JE, Perkins K, Hornung RL, Folio L, Rosenberg PS, Puck JM, Hsu AP, Lo B, Pittaluga S, Jaffe ES, Fleisher TA, Rao VK, Lenardo MJ. Natural history of autoimmune lymphoproliferative syndrome associated with FAS gene mutations. Blood. 2014 Mar 27;123(13):1989-99. doi: 10.1182/blood-2013-10-535393. Epub 2014 Jan 7.

    PubMed 24398331

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Soquelitinib in people with Autoimmune Lymphoproliferative Syndrome, run by National Institute of Allergy and Infectious Diseases (NIAID) at 3 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 11 inclusion and 16 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: looking for participants now, as of the sponsor's last update on 3 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 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 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?

This study is still under way. Results are not available in the source record yet.

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

Contact Alanvin D Orpia, R.N. ((240) 550-3663, alanvin.orpia@nih.gov), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Reduction of spleen volume or target lymph node volume by 25% from baseline to day 90, assessed by CT or PET/CT scan. (time frame: Day 90). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06730126, which also lists 1 linked publication.

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 3 Nov 2026.

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