Clinical trial • Phase II • Immunology|Rare Disease

LENIOLISIB PHOSPHATE for Common variable immunodeficiency

Phase II trial of LENIOLISIB PHOSPHATE for Common variable immunodeficiency. open-label, adaptive. 14 participants.

Overview

Trial Therapeutic Area
Immunology|Rare Disease
Trial Disease
Common variable immunodeficiency
Trial Stage
Phase II
Drug Modality
Small molecule
Paediatric Trial
Yes

Key dates

Initial CTIS Submission Date
07-02-2025
First CTIS Authorization Date
26-05-2025

Trial design

open-label, adaptive Phase II trial in Spain.

Open Label
Yes
Adaptive
True, within-patient dose-escalation design: all subjects receive leniolisib starting 10 mg BID for 4 weeks, then 30 mg BID for 4 weeks, then 70 mg BID for an additional 16 weeks (within-patient escalation schedule described in protocol).
Single Multiple Or Escalation Dose Combined
Yes
Target Sample Size
14
Trial Duration For Participant
245

Eligibility

Recruits 14 paediatric patients.

Pregnancy Exclusion
22. Pregnant or nursing (lactating) women, where pregnancy is defined as the state of a female after conception and until the termination of gestation, confirmed by a positive hCG serum laboratory test.
Vulnerable Population
Vulnerable populations selected. Inclusion criterion states: "Subjects or their legal representatives (for subjects under the age of 18 years) must be able to communicate with the Investigator and understand and comply with the requirements of the study, including an ability to provide written informed consent before any assessment is performed (through an interpreter if non-English speaking)." Subject information and consent/assent documents (adult and assent versions) are included in the submitted documents (e.g. L1_SIS and ICF Assent, L1_SIS and ICF Adult-Parent), indicating use of parental/legal representative consent and child assent where applicable.

Inclusion criteria

  • {"criterion_text":"- 1. Subject is 12 to 75 years of age (inclusive). a. Specifically at sites located in the United Kingdom subjects must be 18 to 75 years of age (inclusive)"}
  • {"criterion_text":"- 3. Subject has a clinical diagnosis of CVID supported by: a. A low IgG level compared to age-adjusted reference range on 2 or more measurements separated by at least 3 weeks, unless only 1 result was obtained before initiation of IRT. OR If this cannot be documented, subject must have at least ONE of the following: a. Absent isohemagglutinins and/or poor response to vaccines as determined by the Investigator and supported by criteria in Orange, 2012 b. Low class-switched memory B cells less than 2% AND c. Low IgA and/or IgM compared to age-adjusted reference range AND d. No identified secondary causes of hypogammaglobulinemia"}
  • {"criterion_text":"- 4. Patient has completed Inborn Error of Immunity/ PID genetic testing panel at the Screening Visit and a. Lacks an identified pathogenic/likely pathogenic genetic driver for their CVID primary immunodeficiency OR b. Subject has an identified pathogenic/likely pathogenic genetic driver(s) for their CVID limited to the following genes: TNFRSF13B (TACI), TNFRSF13C (BAFFR), CD19, CD20, CD81, CR2 (CD21), LRBA, CTLA4, NFKB1, NFKB2, IKZF1 (excluding variants associated with combined immune deficiency), CARD11 (gain of function), SH3KBP1, SEC61A1 IRF2BP2, CTNNBL1, TWEAK or PTEN. (This inclusion criterion also includes consideration of any other previous clinically obtained sequencing test.)"}
  • {"criterion_text":"- 5. Subject has lymphoproliferation, as evidenced by CT imaging: splenomegaly with craniocaudal spleen measurement >10 cm and/or lymphadenopathy with at least 1 measurable index lymph node (long axis >1.5 cm) as per Cheson methodology."}
  • {"criterion_text":"- 6. Subject has at least ONE of the following CVID clinical manifestations of immune dysregulation: a. Clinical symptoms related to splenomegaly or lymphadenopathy which interfere with activities of daily living or are associated with chronic pain, dyspnea, functional impairment, or limitations in usual activities b. One or more blood cytopenias related to CVID (and not due to other medical conditions such as iron-deficiency or lead exposure) defined as hemoglobin <10 g/dL, platelet count <100,000/μL, and/or neutrophil count <1,000/μL c. Previous pathologic confirmation of ILD and attributed to CVID by the Investigator with quantifiable CT chest imaging findings evident on baseline CT scan d. Clinical diagnosis of CVID enteropathy or other GI tract diagnosis attributable to CVID by the Investigator which involves the small intestine and meets the following enteropathy criteria: i. Clinical symptoms of GI disease including at least 1 of: abdominal pain or diarrhea at least 3 days of the week for at least 4 weeks or longer, or dependence on supplemental enteral or parenteral nutrition ii. Lacks a clinical diagnosis of Celiac Disease, and negative human leukocyte antigen (HLA)-DQ2 and -DQ8 testing at screening iii. Presence of small bowel villous shortening/atrophy/blunting with or without intraepithelial lymphocytosis noted in a pathology report pertaining to a small bowel biopsy performed within 5 years of enrollment iv. Negative stool PCR Gastrointestinal Profile at screening (If a patient has CVID enteropathy but does not meet items i through iv above, they may still enroll in the study if they meet at least ONE the other CVID clinical manifestations of immune dysregulation; however, they will not be eligible for the optional enteropathy endoscopic evaluation.)"}
  • {"criterion_text":"- 7. At screening, vital signs (systolic and diastolic blood pressure, pulse rate, and oxygen saturation in the absence of any supplemental oxygen) will be assessed in the sitting position after the subject has rested for at least 3 minutes. If the initial assessment yields vital sign parameters outside the defined ranges, a subsequent 2 assessments may be completed. If the average of all 3 repeated vital sign assessments are found within range, the subject is considered to have met this inclusion criterion. Ranges: − Systolic blood pressure 80-159 mm Hg − Diastolic blood pressure 50-109 mm Hg − Pulse rate 50-110 beats per minute (bpm) − Oxygen saturation 93-100%"}
  • {"criterion_text":"- 8. Subjects or their legal representatives (for subjects under the age of 18 years) must be able to communicate with the Investigator and understand and comply with the requirements of the study, including an ability to provide written informed consent before any assessment is performed (through an interpreter if non-English speaking)."}
  • {"criterion_text":"- 2. Subject must have a minimum body weight of 45 kg."}

Exclusion criteria

  • {"criterion_text":"- 1. Laboratory evidence of significant T cell deficiency including CD4+ T cells <200/μL at screening (Spee-Meyer 2019; Malphettes 2009; Seidel 2019)."}
  • {"criterion_text":"- 10. History of hypersensitivity to the study drug or to drugs of similar chemical classes."}
  • {"criterion_text":"- 11. Current use of medication known to be a strong inhibitor, or moderate or strong inducer, of isoenzyme cytochrome P450 CYP3A. Treatment can be discontinued or switched to a different medication prior to starting study treatment."}
  • {"criterion_text":"- 12. Current use of medications that, to a larger extent, are BCRP, OATP1B1, and/or OATP1B3 substrates."}
  • {"criterion_text":"- 13. History of HIV or positive test result at screening."}
  • {"criterion_text":"- 14. Any surgical or medical condition which may jeopardize the subject in case of participation in the study, or might significantly alter the absorption, distribution, metabolism, or excretion of drugs. The Investigator should make this determination in consideration of the subject’s medical history. Examples of reasons for exclusion include but should not be limited to the following: − Uncontrolled hypertension − Congestive heart failure (New York Heart Association status of class III or IV) − Diagnosis of electrocardiogram (ECG) abnormalities indicating a significant risk of safety − Chronic obstructive pulmonary disease (Global Initiative for Chronic Obstructive Lung Disease [GOLD] Stage 3-4) − Chronic need for supplemental oxygen or invasive or non-invasive respiratory support − Major GI tract surgery that may affect drug absorption (such as gastric bypass surgery, gastroenterostomy) − Acute pancreatitis − Liver failure or clinically significant liver disease or dysfunction as indicated by alanine transaminase (ALT) or aspartate transaminase (AST) greater than 2.5 times the upper limit of normal, bilirubin greater than 1.5 times the upper limit of normal, international normalized ratio (INR) greater than 1.5 in the absence of anticoagulation, or presence of diuretic refractory ascites. ▪ Elevation of ALT or AST up to 6 times the upper limit of normal is allowed if elevation is determined to be a consequence of immune dysregulation by the site Principal Investigator and if the elevation has been stable for 3 months prior to enrollment. − History of significant renal injury/renal disease severely affecting renal function or presence of impaired renal function as indicated by estimated glomerular filtration rate of less than 30 mL/min/1.73 m2 estimated using creatinine results."}
  • {"criterion_text":"- 15. A positive hepatitis B surface antigen (HBsAg), positive hepatitis B PCR, positive hepatitis C PCR, or positive hepatitis C antibody result at screening. − Subjects who are positive for hepatitis B core antibody (HBcAb) but negative for HBsAg and negative for hepatitis B PCR should receive tenofovir or other appropriate therapy while on study if the testing is judged by the Investigator to reflect past infection. It is recommended to have monthly HBsAg and hepatitis B PCR monitoring. Anti-HBcAb positivity may also be observed following immunoglobulin administration and represent passive transfer in which case tenofovir therapy is not indicated, but laboratory monitoring may be considered per the discretion of the Investigator. Patients should end study participation if HBsAg or hepatitis B PCR become positive."}
  • {"criterion_text":"- 16. Administration of live vaccines (this includes any attenuated live vaccines) starting from 6 weeks before first dose of study medication, during the study, and up to 7 days after the last dose of leniolisib."}
  • {"criterion_text":"- 17. Subject has a history of malignancy (except lymphoma) within 3 years before the first dose of study medication or has evidence of residual disease from a previously diagnosed malignancy, except for adequately treated cancers of the skin (basal or squamous cell) or carcinoma in situ of the uterine cervix."}
  • {"criterion_text":"- 18. Subject has a previous diagnosis of lymphoma that has been treated with chemotherapy, radiotherapy, or transplant within 1 year of the first dose of study medication or is anticipated to require lymphoma treatment within 6 months of the first dose of study medication."}
  • {"criterion_text":"- 19. Subject has uncontrolled post-transplant lymphoproliferative disease-like Epstein-Barr virus related lymphoproliferative disease."}
  • {"criterion_text":"- 2. Laboratory evidence of significant NK cell deficiency including NK cells <1% of peripheral blood lymphocytes or less than 50/mcL (Mace 2016; Ebbo 2016)."}
  • {"criterion_text":"- 20. Donation or loss of 400 mL or more of blood within 8 weeks before the first dose of study medication."}
  • {"criterion_text":"- 21. Subject has had major surgery requiring hospitalization or radiotherapy within 4 weeks prior to the first dose of study medication or has a planned or expected major surgical procedure during the study period."}
  • {"criterion_text":"- 22. Pregnant or nursing (lactating) women, where pregnancy is defined as the state of a female after conception and until the termination of gestation, confirmed by a positive hCG serum laboratory test."}
  • {"criterion_text":"- 23. Individuals of child-bearing potential who are physiologically capable of becoming pregnant, unless they are using highly effective methods of contraception during dosing of study medication and for 7 days after stopping study treatment (see Section 5.6.1 for contraception requirements)."}
  • {"criterion_text":"- 3. Clinical history of infections suggestive of clinically significant T cell or NK cell deficiency such as Pneumocystis jirovecii, atypical mycobacteria, severe warts, or unusually severe (as determined by the PI) infections with herpesviruses."}
  • {"criterion_text":"- 4. Presence of uncontrolled chronic/recurrent infectious disease (except those considered to be characteristic of antibody deficiency)."}
  • {"criterion_text":"- 5. Positive blood polymerase chain reaction (PCR) for cytomegalovirus."}
  • {"criterion_text":"- 6. Evidence of tuberculosis infection as defined by a positive QuantiFERON® TB-Gold test or other IFN-ɣ release assay such as T-SPOT®.TB test at Screening. If the presence of latent tuberculosis is established, treatment should be completed following local guidelines, and based on best clinical care practice."}
  • {"criterion_text":"- 7. Positive blood cryptococcal antigen"}
  • {"criterion_text":"- 8. Previous or concurrent use of immunosuppressive medication, such as: – Use of an mTOR inhibitor (e.g., sirolimus, everolimus) or a PI3K inhibitor (selective or non-selective PI3K inhibitors) within 3 weeks prior to pre-dose CT scan. − Rituximab or other B cell depleting antibodies, belimumab, cyclophosphamide, or alemtuzumab within 6 months prior to first dosing of study medication. − Cyclosporine A, mycophenolate mofetil, 6-mercaptopurine, azathioprine, methotrexate, tacrolimus, ruxolitinib, or other Janus kinase (JAK) inhibitors within 3 weeks prior to pre-dose CT scan. − Glucocorticoids above 25 mg prednisone or equivalent per day within 2 weeks prior to pre-dose CT scan. − Immunosuppressive monoclonal or polyclonal antibody therapeutics such as directed against TNF-α, α₄β₇ integrin, IL-6, IL-12/IL-23 and others within 5 half-lives prior to first dosing of study medication − Other immunosuppressive agents expected to have a significant impact on immune cell number or function.  Abatacept is allowed during study if the subject has been receiving a stable dosing regimen for more than 3 months prior to first dosing of study medication.  Enteral budesonide is allowed during study if the subject has been receiving a stable dosing regimen for more than 3 months prior to first dosing of study medication."}
  • {"criterion_text":"- 9. Subject is receiving concurrent treatment with another investigational therapy or use of another investigational therapy less than 4 weeks or 5 half-lives (whichever is longer) prior to first dosing of study medication."}

Endpoints

Primary endpoints

  • {"endpoint_text":"- Adverse events (AEs; via assessment of vital signs, safety labs, physical exams and overall trial safety monitoring)","definition_or_measurement_approach":"Assessment via vital signs, safety laboratory tests, physical examinations and overall trial safety monitoring"}

Secondary endpoints

  • {"endpoint_text":"- Percent change from baseline in splenomegaly measured by 3D volume and 2D size of spleen","definition_or_measurement_approach":"Percent change from baseline measured by 3D volume and 2D size of spleen"}
  • {"endpoint_text":"- Percent change from baseline in lymphoproliferation measured as the SPD in the index lesions selected per the Cheson methodology","definition_or_measurement_approach":"Percent change from baseline measured as sum of products of diameters (SPD) in index lesions per Cheson methodology"}
  • {"endpoint_text":"- Percent change from baseline in lymphoproliferation measured as SPD of measurable non-index lesions selected as per the Cheson methodology","definition_or_measurement_approach":"Percent change from baseline measured as SPD of measurable non-index lesions per Cheson methodology"}
  • {"endpoint_text":"- Hemoglobin over time","definition_or_measurement_approach":"Serial hemoglobin measurements over time"}
  • {"endpoint_text":"- Platelet count over time","definition_or_measurement_approach":"Serial platelet count measurements over time"}
  • {"endpoint_text":"- Absolute neutrophil count over time","definition_or_measurement_approach":"Serial absolute neutrophil count measurements over time"}
  • {"endpoint_text":"- Change in CT evidence of ILD evaluated using Hartmann scoring methodology","definition_or_measurement_approach":"Change in CT findings of interstitial lung disease evaluated using Hartmann scoring methodology"}
  • {"endpoint_text":"- Change in pulmonary function testing, including forced expiratory volume 1 (FEV1), forced vital capacity (FVC), total lung capacity (TLC), residual volume (RV), diffusion capacity for carbon monoxide (DLCO)","definition_or_measurement_approach":"Pulmonary function test parameter changes (FEV1, FVC, TLC, RV, DLCO) over time"}
  • {"endpoint_text":"- Absolute numbers and percentages of leukocyte populations (including lymphocyte subsets) over time","definition_or_measurement_approach":"Flow cytometry/hematology-based counts and percentages of leukocyte populations and subsets over time"}
  • {"endpoint_text":"- Percentages of naïve B cells and CD21low B cells over time","definition_or_measurement_approach":"Percentages of naïve B cells and CD21low B cells measured over time"}
  • {"endpoint_text":"- Percentage of T regulatory cells over time","definition_or_measurement_approach":"Percentage of regulatory T cells measured serially over time"}
  • {"endpoint_text":"- Levels of CXCL13 over time","definition_or_measurement_approach":"Serial measurement of CXCL13 levels"}
  • {"endpoint_text":"- Levels of soluble IL-2Rα over time","definition_or_measurement_approach":"Serial measurement of soluble IL-2Rα levels"}
  • {"endpoint_text":"- Define the PK parameters for leniolisib in patients with CVID","definition_or_measurement_approach":"Pharmacokinetic parameter estimation for leniolisib (PK sampling and analysis)"}

Recruitment

Planned Sample Size
14
Recruitment Window Months
16
Consent Approach
Written informed consent required prior to any assessments. For subjects under 18 years, consent must be provided by legal representatives and assent procedures/documents are included. Consent may be provided through an interpreter if non-English speaking. Study submission includes subject information and informed consent/assent documents (adult and assent versions) in the dossier.

Geography

Total Number Of Sites
1
Total Number Of Participants
6

Spain

Earliest CTIS Part Ii Submission Date
04-04-2025
Latest Decision Or Authorization Date
19-11-2025
Processing Time Days
229
Number Of Sites
1
Number Of Participants
6

Sites

Site Name
Hospital Universitario Y Politecnico La Fe
Department Name
Internal Medicine – PID Unit
Contact Person Name
Marta Dafne Cabañero Navalón
Contact Person Email
dac_medica_lafe@gva.es

Sponsor

Primary sponsor

Full Name
Pharming Technologies B.V.
Organisation Type
Pharmaceutical company
Country Of Registered Address
Netherlands

Contract research organisations

Name
Icon Clinical Research LLC
Responsibilities
sponsorDuties code 4
Name
PPD Development LP
Responsibilities
sponsorDuties code 4
Name
Almac Clinical Service Limited
Responsibilities
sponsorDuties code 14

Third parties

  • {"country":"United States","full_name":"Greenphire LLC","duties_or_roles":"Patient reimbursement (sponsorDuties code 15)","organisation_type":"Non-Pharmaceutical company"}
  • {"country":"United States","full_name":"Labcorp Central Laboratory Services LP","duties_or_roles":"sponsorDuties code 4","organisation_type":"Pharmaceutical company"}
  • {"country":"United Kingdom","full_name":"Babraham Institute","duties_or_roles":"sponsorDuties code 4","organisation_type":"Educational Institution"}
  • {"country":"United States","full_name":"Fulgent Genetics Inc.","duties_or_roles":"sponsorDuties code 4","organisation_type":"Laboratory/Research/Testing facility"}
  • {"country":"United States","full_name":"Icon Clinical Research LLC","duties_or_roles":"sponsorDuties code 4","organisation_type":"Pharmaceutical company"}
  • {"country":"United Kingdom","full_name":"Almac Clinical Service Limited","duties_or_roles":"sponsorDuties code 14","organisation_type":"Industry"}
  • {"country":"United States","full_name":"PPD Development LP","duties_or_roles":"sponsorDuties code 4","organisation_type":"Pharmaceutical company"}
  • {"country":"United Kingdom","full_name":"Aixial UK Limited","duties_or_roles":"sponsorDuties codes 1,11,12,5,6","organisation_type":"Laboratory/Research/Testing facility"}
  • {"country":"France","full_name":"Eurofins Adme Bioanalyses","duties_or_roles":"sponsorDuties code 4","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Allen Institute","duties_or_roles":"sponsorDuties code 4","organisation_type":"Educational Institution"}
  • {"country":"United Kingdom","full_name":"Acm Global Central Laboratory Limited","duties_or_roles":"sponsorDuties code 4","organisation_type":"Laboratory/Research/Testing facility"}

Investigational products

Investigational Product Name
CDZ173/Leniolisib
Active Substance
LENIOLISIB PHOSPHATE
Modality
Small molecule
Routes Of Administration
ORAL
Route
ORAL
Authorisation Status
prodAuthStatus 1
Starting Dose
10 mg BID
Dose Levels
10 mg BID -> 30 mg BID -> 70 mg BID
Frequency
BID
Maximum Dose
70 mg BID (140 mg/day)
Dose Escalation Increase
10 mg BID then 30 mg BID then 70 mg BID
Investigational Product Name
CDZ173/Leniolisib
Active Substance
LENIOLISIB PHOSPHATE
Modality
Small molecule
Routes Of Administration
ORAL
Route
ORAL
Authorisation Status
prodAuthStatus 1
Starting Dose
10 mg BID
Dose Levels
10 mg BID -> 30 mg BID -> 70 mg BID
Frequency
BID
Maximum Dose
70 mg BID (140 mg/day)
Dose Escalation Increase
10 mg BID then 30 mg BID then 70 mg BID
Investigational Product Name
CDZ173/Leniolisib
Active Substance
LENIOLISIB PHOSPHATE
Modality
Small molecule
Routes Of Administration
ORAL
Route
ORAL
Authorisation Status
prodAuthStatus 1
Starting Dose
10 mg BID
Dose Levels
10 mg BID -> 30 mg BID -> 70 mg BID
Frequency
BID
Maximum Dose
70 mg BID (140 mg/day)
Dose Escalation Increase
10 mg BID then 30 mg BID then 70 mg BID

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