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APDS Gene MutationPhase 3NCT06249997

An Open-Label Study to Assess the Safety & Efficacy of Leniolisib in Japanese Patients With APDS

A Phase 3 study testing Leniolisib in people with APDS Gene Mutation, run by Pharming Technologies B.V. at 2 sites in Japan.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

An Open-Label, Non-Randomized Study to Assess the Safety and Efficacy of Leniolisib in Japanese Patients With Activated Phosphoinositide 3-Kinase Delta Syndrome (APDS) Followed By an Open-Label Long-Term Extension. For the treatment of activated phosphoinositide 3-kinase delta (PI3Kδ) syndrome (APDS). Read more about this study

Who is it for?
Ages 12 to 75 years
Conditions the study is for
APDS Gene Mutation
What is being tested?
Leniolisib
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
3 participants
Where
2 sitesJapan
Study dates
3 Aug 2023to 31 Mar 2025
Phase
Phase 3
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 12 to 75 years
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Patient is Japanese.
  • Patient is male or female and 12 to 75 years of age (inclusive) at the time of the first study procedure.
  • Patient weighs ≥35 kg at baseline.
  • Patient has a PI3Kδ genetic mutation of either the PIK3CD (APDS1) or PIK3R1 (APDS2) gene.
  • Patient has at least 1 measurable nodal lesion on computed tomography (CT) or magnetic resonance imaging (MRI) scan within 6 months of Screening.
  • Patient has nodal and/or extranodal lymphoproliferation and clinical findings and manifestations consistent with APDS (e.g., a history of repeated oto-sino-pulmonary infections and/or organ dysfunction consistent with APDS).
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  • At Screening, patient has sitting vital signs (with patient rested for at least 3 minutes) within the following ranges:
  • Systolic blood pressure, 90-160 mm Hg
  • Diastolic blood pressure, 50-95 mm Hg
  • Pulse rate, 40-100 bpm; up to 110 bpm in adolescents

Who cannot join

  • Patient has previous or concurrent use of immunosuppressive medication such as the following:
  • A mammalian target of rapamycin inhibitor (e.g., sirolimus, rapamycin, or everolimus) or a PI3Kδ inhibitor (selective or non-selective phosphoinositide 3-kinase inhibitors) within 6 weeks prior to first dose.
  • Short-term use for up to a total of 5 days is allowed but only up to 1 month prior to enrollment in the study.
  • B-cell depleters (e.g., rituximab) within 6 months prior to first dose of study treatment.
  • If patient has received prior treatment with a B-cell depleter, absolute B lymphocyte counts in the blood must have regained normal values.
  • Belimumab or cyclophosphamide within 6 months prior to first dose of study treatment.
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  • Cyclosporine A, mycophenolate, 6-mercaptopurine, azathioprine, or methotrexate within 3 months prior to first dose of study treatment.
  • Glucocorticoids above 25 mg prednisone or equivalent per day within 2 weeks prior to first dose of study treatment.
  • Other immunosuppressive medications where effects are expected to persist at start of dosing of study treatment.
  • Patient has had a hematopoietic stem-cell transplant, hematopoietic cell transplant, or bone marrow transplant.
  • Patient is currently using a medication known to be a strong inhibitor or moderate or strong inducer of isoenzyme cytochrome P450 (CYP)3A if treatment cannot be discontinued or switched to a different medication prior to starting study treatment.
  • Patient is currently using medications that are metabolized by isoenzyme CYP1A2 and have a narrow therapeutic index (drugs whose exposure response indicates that increases in their exposure levels by the concomitant use of potent inhibitors may lead to serious safety concerns [e.g., Torsades de Pointes]).
  • Patient had been administered a live vaccine (this includes any attenuated live vaccines) starting from 6 weeks before the anticipated first dose of study treatment, during the treatment period, and up to 7 days after the last dose of leniolisib.
  • Patient is a pregnant or nursing (lactating) woman, where pregnancy is defined as the state of a female after conception and until the termination of gestation, confirmed by a positive human chorionic gonadotropin laboratory test.
  • Patient is a woman of child-bearing potential, defined as a woman physiologically capable of becoming pregnant, unless she is using highly effective methods of contraception during dosing of study treatment and for 30 days after the last study procedure.

Trial locations and contacts

2 sites in 1 country.

Jason Bradt, MD contact

+31715247400

J.Bradt@pharming.com

Elaine Cueto, MD contact

+1 201 320 2142

E.Cueto@pharming.com

Japan2 sites, 2 recruiting
  • Hiroshima University Hospital

    Hiroshima, Hiroshima City, 734-8551

    Satoshi Okada, MD, sokada@hiroshima-u.ac.jp

    Noma Kosuke, MD

    Recruiting
  • Tokyo Medical And Dental University Hospital

    Tokyo, Bunkyo-ku, 113-8510

    Hirokazu Kanegane, Prof., hkanegane.ped@tmd.ac.jp

    Takeshi Isoda, MD

    Recruiting

Other trials in Japan

About this study

Official title: An Open-Label, Non-Randomized Study to Assess the Safety and Efficacy of Leniolisib in Japanese Patients With Activated Phosphoinositide 3-Kinase Delta Syndrome (APDS) Followed By An Open-Label Long-Term Extension

An Open-Label, Non-Randomized Study to Assess the Safety and Efficacy of Leniolisib in Japanese Patients With Activated Phosphoinositide 3-Kinase Delta Syndrome (APDS) Followed By an Open-Label Long-Term Extension.

For the treatment of activated phosphoinositide 3-kinase delta (PI3Kδ) syndrome (APDS).

Read the detailed description

This is a 2-part, open-label, non-randomized study to assess the safety and efficacy of leniolisib in Japanese patients with APDS. At least3 patients, aged 12 to 75 years (inclusive), will be enrolled. Patient eligibility will be assessed during a 7-week Screening Period (Day -50 to Day -1). This will be followed by a 12-week Treatment Period (Part 1), in which patients will be administered leniolisib doses ranging from 40 to 70 mg twice daily (BID) based on body weight (see dose regimen table below). A Part 1 clinical study report will be generated once the last patient completes the Day 85 Visit for Part 1. Patients who complete the Day 85 Visit will enter the Extension Period of the study (Part 2), in which patients will be administered leniolisib doses ranging from 40 to 70 mg BID (based on body weight) for 1 year or until marketing approval in Japan, whichever is longer. A 4-week Follow-up Period will occur after the last dose of study treatment is received.

It is anticipated that a total of 3 patients will be enrolled into the study.

Objectives:

Part 1:

Primary:

  • To assess the safety and tolerability of leniolisib
  • To assess the efficacy of leniolisib on lymphoproliferation (sum of product diameters [SPD] of index lymph node lesions) and immunophenotype normalization (percentage of naïve B cells out of total B cells)

Secondary:

  • To assess the efficacy of leniolisib on lymphoproliferation (non-index lymph node lesions and spleen)
  • To assess the pharmacokinetics (PK) of leniolisib in the Japanese population
  • To assess the efficacy of leniolisib to modify health-related quality of life
  • To assess the efficacy of leniolisib by the Patient's and Physician's Global Assessments
  • To assess the frequency of infections, antibiotic use, and immunoglobulin (Ig) replacement therapy and assessment of impact on other disease-related outcomes (e.g., cytopenia, colitis, and lung function)
  • To assess biomarkers reflecting the efficacy of leniolisib to reduce systemic inflammatory components of the disease
  • To assess the treatment benefit to individual patients

Part 2:

Primary:

  • To assess the long-term safety and tolerability of leniolisib

Secondary:

  • To assess the long-term efficacy of leniolisib to modify health-related quality of life
  • To assess the long-term efficacy of leniolisib on lymphoproliferation (non-index lymph node lesions and spleen)
Being tested
Leniolisib

What participants receive

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

  • LeniolisibDrug

    The doses selected range from 40 to 70 mg BID (based on body weight, resulting in total daily doses ranging from 80 to 140 mg a day for 12 weeks in Part I and 1 year in Part II, or until marketing approval in Japan, whichever is longer.

Study groups in NCT06249997
Study groupRoleWhat they receive
LeniolisibExperimentalLeniolisib - Film coated tablets Leniolisib tablets in doses ranging from 40 to 70 mg twice daily (BID) based on body weight. A Part 1 clinical study report will be generated once the last patient completes the Day 85 Visit for Part 1. Patients who complete the Day 85 Visit will enter the Extension Period of the study (Part 2), in which patients will be administered leniolisib doses ranging from 40 to 70 mg BID (based on body weight) for 1 year or until marketing approval in Japan, whichever is longer. A 4-week Follow-up Period will occur after the last dose of study treatment is received.
Receives: Drug: Leniolisib

What is being measured

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

  1. Part I: Incidence of treatment-emergent adverse events ((AEs), serious adverse events (SAEs), and AEs

    Incidence of treatment-emergent adverse events (AEs), serious adverse events (SAEs), and AEs leading to discontinuation of study treatment

    Measured: Between baseline until Day 85

  2. Part II: Long-term Incidence of treatment-emergent adverse events ((AEs), serious adverse events (SAEs), and AEs

    Long-term Incidence of treatment-emergent adverse events ((AEs), serious adverse events (SAEs), and AEs leading to discontinuation of study treatment

    Measured: At Day 252, through study completion, an average of 1 year

  3. Part I: Change from baseline in clinical laboratory test results

    Number of participants with change in clinical laboratory test results (hematology, blood chemistry, urinalysis). Absolute values and change from baseline values of vital signs (including body weight) and ECG results at each visit will be listed for each patient and may be summarized using descriptive statistics. Tanner staging will be listed for each patient at each visit. Plots may also be used to display the patient data over time.

    Measured: Between baseline until Day 85

  4. Part II: Long-term change from baseline in clinical laboratory test results

    Number of participants with long-term change in clinical laboratory test results (hematology, blood chemistry, urinalysis). Absolute values and change from baseline values of vital signs (including body weight) and ECG results at each visit will be listed for each patient and may be summarized using descriptive statistics. Tanner staging will be listed for each patient at each visit. Plots may also be used to display the patient data over time.

    Measured: At Day 252, through study completion, an average of 1 year

  5. Part I: Change from baseline in vital signs

    Number of Participants with change in vital signs

    Measured: Between baseline until Day 85

  6. Part II: Long-term change from baseline in vital signs

    Number of Participants with long-term change in vital signs

    Measured: At Day 252, through study completion, an average of 1 year

  7. Part I: Change from baseline in physical examination findings

    Number of participants with change in physical examination findings

    Measured: Between baseline until Day 85

  8. Part II: Long-term change from baseline in physical examination findings

    Number of participants with long-term change in physical examination findings

    Measured: At Day 252, through study completion, an average of 1 year

  9. Part I: Change from baseline in electrocardiograms (ECGs)

    Number of participants with change in electrocardiograms (ECGs)

    Measured: Between baseline until Day 85

  10. Part II: Long-term change from baseline in electrocardiograms (ECGs)

    Number of participants with long-term change in electrocardiograms (ECGs)

    Measured: At Day 252, through study completion, an average of 1 year

  11. Part I: To assess the efficacy of leniolisib on lymphoproliferation (SPD of index lymph node lesions) and immunophenotype normalization (percentage of naïve B cells out of total B cells)

    Number of patients with change in SPD of index lesions (selected as per the Cheson methodology from magnetic resonance imaging [MRI] or computed tomography [CT] imaging) at the end of treatment

    Measured: Between baseline until Day 85

  12. Part I: Change from baseline in the percentage of naïve B cells out of total B cells at the end of treatment

    Number of participants with change in percentage of naïve B cells out of total B cells at the end of treatment

    Measured: Between baseline until Day 85

Secondary outcomes (9)
  1. Part I: Change from baseline in lymphoproliferation measured using MRI, CT imaging, or ultrasound

    Parameters for change from baseline in lymphoproliferation as a secondary endpoint may include 3-dimensional (3D) volume of index and measurable non-index lesions (selected as per the Cheson methodology) and 3D volume and bi-dimensional sizes of spleen and liver, where appropriate.

    Measured: Between baseline until Day 85

  2. Part II: Long-term change from baseline in lymphoproliferation measured using MRI, CT imaging, or ultrasound

    Number of participants with change from in lymphoproliferation measured using MRI, CT imaging, or ultrasound (e.g., 3D volume of index and measurable non-index lesions [selected as per the Cheson methodology] and 3D volume and bi-dimensional sizes of spleen and liver, where appropriate) at the end of treatment.

    Measured: At Day 252, through study completion, an average of 1 year

  3. Part I: To assess the PK of leniolisib in the Japanese population

    Number of participants with change in PK parameters (including but not limited to area under the plasma concentration-time curve from time zero to 12 hours after dosing at steady state [AUC0-12,ss] and maximum plasma concentration following drug administration at steady state [Cmax,ss])

    Measured: Between baseline until Day 85

  4. Part I: To assess the efficacy of leniolisib to modify health-related quality of life

    Number of participants with change in Short Form-36 (SF-36) Survey and Work Productivity and Activity Impairment-Classroom Impairment Questionnaire (WPAI-CIQ) summary scores

    Measured: Between baseline until Day 85

  5. Part II: To assess the long-term efficacy of leniolisib to modify health-related quality of life

    Number of participants with long-term change in Short Form-36 (SF-36) Survey and Work Productivity and Activity Impairment-Classroom Impairment Questionnaire (WPAI-CIQ) summary scores

    Measured: At Day 252, through study completion, an average of 1 year

  6. Part I: To assess the efficacy of leniolisib by the Patient's and Physician's Global Assessments

    Number of participants with long-term change in visual analog scales (VAS) for Patient's and Physician's Global Assessments, measured by scale with no and maximal activity score

    Measured: Between baseline until Day 85

  7. Part I: To assess the frequency of infections and assessment of impact on other disease-related outcomes (e.g., cytopenia, colitis, and lung function)

    Number of participants with change in frequency of infections, use of antibiotics, Ig replacement therapy, and other disease complications

    Measured: Between baseline until Day 85

  8. Part I: To assess biomarkers reflecting the efficacy of leniolisib to reduce systemic inflammatory components of the disease

    Number of participants with change in High-sensitivity C-reactive protein (hsCRP), lactate dehydrogenase (LDH), beta2 microglobulin, ferritin, fibrinogen, and erythrocyte sedimentation rate

    Measured: Between baseline until Day 85

  9. Part I: To assess the treatment benefit to individual patients

    Number of patients that benefit from the treatment via narratives by the Investigator

    Measured: Between baseline until Day 85

Timeline

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

  1. First posted8 Feb 2024
  2. Study start3 Aug 2023
  3. Primary completion31 Jan 2025 (estimated)
  4. Study completion31 Mar 2025 (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 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
3 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06249997
Sponsor's protocol ID
LE 4301
Status last verified
Jan 2024
First submitted
21 Nov 2023
Last updated
8 Feb 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Leniolisib in people with APDS Gene Mutation, run by Pharming Technologies B.V. at 2 sites in Japan.

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 10 inclusion and 15 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: status not confirmed, as of the sponsor's last update on 8 Feb 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Japan. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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?

Contact Jason Bradt, MD (+31715247400, J.Bradt@pharming.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Part I: Incidence of treatment-emergent adverse events ((AEs), serious adverse events (SAEs), and AEs (time frame: Between baseline until Day 85). The study lists 12 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 8 Feb 2024.

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