IKS03 in Patients With Advanced B Cell Non-Hodgkin Lymphomas
Recruiting now Phase 1 NCT05365659
Run by Iksuda Therapeutics Ltd. · for 18 and older · All sexes
What this study is about
This first-in-human study will evaluate the recommended dose for further clinical development, safety, tolerability, antineoplastic activity, immunogenicity, pharmacokinetics and pharmacodynamics of IKS03, a CD19 targeting antibody-drug conjugate, in patients with advanced B cell non-Hodgkin lymphoma (NHL).
Who can join (things the study team will check)
✅ You may be able to join if…
- Males or females, ≥ 18 years of age
- Part 1: documented B cell NHL (any subtype except Burkitt lymphoma, Waldenström macroglobulinemia, chronic lymphocytic leukemia); previously confirmed CD19-positive if feasible
- Part 2: documented B cell NHL (subtypes to be determined); confirmed CD19-positive; possible expansion cohorts may include:
- Diffuse large B cell lymphoma (including germinal center B cell type, activated B cell type)
- Follicular lymphoma (including duodenal-type follicular lymphoma)
- Mantle cell lymphoma
- B cell lymphomas not specified
- If B cell NHL subtype likely to have bone marrow involvement must be willing to undergo bone marrow biopsy in the event of an on-study complete response to confirm response
- NHL that is relapsed, refractory to, or intolerant of existing therapy(ies) with known curative potential, or for which no standard therapy is available; must have received at least 2 prior lines of systemic therapy
- Must be in need of systemic treatment and not require immediate cytoreductive therapy
- Part 1: measurable or non-measurable disease
- Part 2: measurable disease according to The Revised Criteria/Lugano Classification
- Part 1: screening tumor biopsy requested, but optional; Part 2: patient must agree to screening tumor biopsy
- ECOG performance status 0 or 1; anticipated life expectancy ≥ 10 weeks
- Women of childbearing potential and fertile men agreeing to use two effective methods of contraception (including a highly effective method of contraception); women beginning 2 weeks prior to the first dose, men beginning prior to the first dose, and both continuing until 8 months after the last dose of study drug; male patients must also agree to refrain from sperm donation during this period.
- Ability to understand and give written informed consent
🚫 You may not be able to join if…
- Women who are pregnant or intending to become pregnant before, during, or within 8 months after the last dose of study drug; women who are breastfeeding
- Patients documented to be CD19-negative
- Central nervous system (CNS) lymphoma, leptomeningeal infiltration, or spinal cord compression not controlled by prior surgery or radiotherapy; symptoms suggesting CNS involvement
- Part 2: History of another malignancy within 2 years, with the exception of:
- Treated, non-melanoma skin cancers
- Treated carcinoma in situ (e.g., breast, cervix)
- Controlled, superficial carcinoma of the urinary bladder
- T1a or b prostate carcinoma treated according to standard of care, with PSA within normal limits
- Papillary thyroid carcinoma Stage I treated surgically for cure
- Any of the following hematologic abnormalities at baseline (transfusion allowed > 5 days previous):
- Hemoglobin < 8.0 g/dL
- Absolute neutrophil count < 1,000 per mm3
- Platelet count < 75,000 per mm3
- Any of the following laboratory abnormalities at baseline:
- Total bilirubin > 1.5 × upper limit of normal (ULN); > 3 × ULN if with Gilbert's Syndrome
- AST or ALT > 3 × ULN; > 5 × ULN if due to hepatic involvement by tumor
- Estimated GFR ≤ 60 mL/min corrected for BSA
- Albuminuria defined as urine albumin to creatinine ratio < 30 mg/g or < 3 mg/mmol) by spot urine albumin
- Any of the following coagulation parameter abnormalities at baseline unless on a stable dose of anticoagulant therapy for a prior thrombotic event:
- PT or INR > 1.5 × ULN; > 3× ULN if anticoagulated)
- PTT > 1.5 × ULN; > 3× ULN if anticoagulated
- Any of the following laboratory abnormalities at baseline aimed at assessing renal function:
- Estimated glomerular filtration rate (eGFR) ≤ 60 mL/min, corrected for BSA.
- Albuminuria defined as urine albumin to creatinine ratio (UACR) ≥ 30 mg/g or ≥ 3 mg/mmol by spot urine albumin
- Patients with:
- Active thrombosis, or a history of deep vein thrombosis or pulmonary embolism, within 4 weeks unless adequately treated and stable
- Active uncontrolled bleeding or a known bleeding diathesis
- Significant cardiovascular disease or condition, including:
- Congestive heart failure or angina pectoris requiring therapy
- Ventricular arrhythmia requiring therapy or other uncontrolled arrhythmia
- Severe conduction disturbance (e.g., 3rd degree heart block)
- QTc interval ≥ 480 milliseconds
- Left ventricular ejection fraction below the lower limit of normal or < 50% by MUGA scan or echocardiogram
- Class III or IV cardiovascular disease according to the New York Heart Association Functional Classification
- History of acute coronary syndromes (e.g., MI, unstable angina), coronary angioplasty, stenting, or bypass within 6 months
- Significant liver disease, including:
- Non-infectious hepatitis
- Hepatic cirrhosis (Child-Pugh Class B and Class C)
- Significant pulmonary disease or condition, including:
- Significant symptomatic COPD, as assessed by the Investigator
- History or any current evidence on imaging studies of interstitial lung disease, pulmonary fibrosis
- History of pulmonary inflammatory disease, pneumonitis, ARDS
- History of pneumonia within 6 months
- Significant corneal disease or condition, including history of or current evidence of keratitis
- Clinically significant CNS disease or condition including PML, epilepsy, vasculitis, or neurodegenerative disease. Also including TIA or stroke within 6 months
- Known HIV infection or AIDS
- Active hepatitis B virus or hepatitis C virus infection
- Any other serious/active/uncontrolled infection, any infection requiring parenteral antibiotics, or unexplained fever > 38ºC within 2 weeks
- Autoimmune disease or condition requiring systemic steroids or other immunosuppressive medications
- Unresolved Grade > 1 AE associated with any prior antineoplastic therapy (except persistent Grade 2 alopecia, peripheral neuropathy, decreased hemoglobin, neutropenia, lymphopenia, hypomagnesemia, and/or endocrine end-organ failure being adequately managed by HRT)
- Known or suspected hypersensitivity to any of the excipients of formulated study drug
+ 17 more criteria — see the full checklist in the app.
Where this trial is running
- University of Maryland Baltimore, Baltimore, Maryland, United States
- Westmead Hospital, Westmead, New South Wales, Australia
- Royal Adelaide Hospital, Adelaide, South Australia, Australia
- Royal Hobart Hospital, Hobart, Tasmania, Australia
- Linear Clinical Research, Perth, Western Australia, Australia
- Jewish General Hospital, Montreal, Quebec, Canada
- La Fondazione e l'Istituto di Candiolo, Candiolo, Italy
- Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ospedale San Raffaele, Milan, Italy
- Istituto Europeo Clinico Humanitas, Milan, Italy
- Istituto Europeo di Oncologia, Milan, Italy
- Institut Catala D'Oncologia, Badalona, Spain
- Hospital Universitario Quironsalud Madrid, Madrid, Spain
+ 1 more sites.
Who to contact
David Browning · 615-975-7776 · david.browning@iksuda.com
It's completely normal to call and ask questions before deciding anything. Mention the study ID: NCT05365659.
Verify everything on the official ClinicalTrials.gov record. Page updated July 2026.
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