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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/ct2/show/NCT05365659




Registration number
NCT05365659
Ethics application status
Date submitted
2/05/2022
Date registered
9/05/2022
Date last updated
3/10/2023

Titles & IDs
Public title
IKS03 in Patients With Advanced B Cell Non-Hodgkin Lymphomas
Scientific title
A Phase 1 Cohort Dose Escalation and Expansion Trial to Determine the Safety, Tolerance, Maximum Tolerated Dose, and Preliminary Antineoplastic Activity of IKS03 in Patients With Advanced B Cell Non-Hodgkin Lymphomas (NHL)
Secondary ID [1] 0 0
IKS03-01
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
B-cell Non-Hodgkin Lymphoma 0 0
Diffuse Large B Cell Lymphoma 0 0
Follicular Lymphoma 0 0
Mantle Cell Lymphoma 0 0
B-cell Lymphoma 0 0
Condition category
Condition code
Cancer 0 0 0 0
Lymphoma (non Hodgkin's lymphoma) - High grade lymphoma
Cancer 0 0 0 0
Lymphoma (non Hodgkin's lymphoma) - Low grade lymphoma

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - IKS03

Experimental: Dose Escalation Cohort (Part 1) - Each patient will receive repeat doses (by intravenous (IV) infusions) on Day 1 of each 21-day cycle. Participants may continue on study until disease progression, unacceptable toxicity, or other withdrawal criteria is met.

Experimental: Dose Expansion: Diffuse-Large B-Cell Lymphoma Participants - Each patient will receive IKS03 at the recommended dose for expansion (RDE) defined in Part 1 on Day 1 of each 21-day cycle. Participants may continue on study until disease progression, unacceptable toxicity, or other withdrawal criteria is met.

Experimental: Dose Expansion: Follicular Cell Lymphoma Participants - Each patient will receive IKS03 at the recommended dose for expansion (RDE) defined in Part 1 on Day 1 of each 21-day cycle. Participants may continue on study until disease progression, unacceptable toxicity, or other withdrawal criteria is met.

Experimental: Dose Expansion: Mantle Cell Lymphoma Participants - Each patient will receive IKS03 at the recommended dose for expansion (RDE) defined in Part 1 on Day 1 of each 21-day cycle. Participants may continue on study until disease progression, unacceptable toxicity, or other withdrawal criteria is met.

Experimental: Dose Expansion: Other B cell lymphoma (B-NHL not otherwise specified [NOS]) - Each patient will receive IKS03 at the recommended dose for expansion (RDE) defined in Part 1 on Day 1 of each 21-day cycle. Participants may continue on study until disease progression, unacceptable toxicity, or other withdrawal criteria is met.


Treatment: Drugs: IKS03
IKS03 is a human monoclonal antibody (Ab) targeting CD19 linked to a pyrrolobenzodiazepine (PBD) pro-drug as the cytotoxic agent.
Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Recommended Dose for Expansion (Part 1)
Timepoint [1] 0 0
Up to 20 months
Primary outcome [2] 0 0
Objective Response Rate (Part 2)
Timepoint [2] 0 0
up to 42 months
Secondary outcome [1] 0 0
Evaluation of the immunogenicity of IKS03 (Part 1 and 2)
Timepoint [1] 0 0
Up to 42 months
Secondary outcome [2] 0 0
Plasma Concentrations of IKS03 (Part 1 and 2)
Timepoint [2] 0 0
Up to 42 months
Secondary outcome [3] 0 0
Determine recommended Phase 2 dose (RP2D) (Part 2)
Timepoint [3] 0 0
Up to 42 months

Eligibility
Key inclusion criteria
1. Males or females, = 18 years of age

2. Part 1: documented B cell NHL (any subtype except Burkitt lymphoma, Waldenström
macroglobulinemia, chronic lymphocytic leukemia); previously confirmed CD19-positive
if feasible

3. Part 2: documented B cell NHL (subtypes to be determined); confirmed CD19-positive;
possible expansion cohorts may include:

1. Diffuse large B cell lymphoma (including germinal center B cell type, activated B
cell type)

2. Follicular lymphoma (including duodenal-type follicular lymphoma)

3. Mantle cell lymphoma

4. B cell lymphomas not specified

4. 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

5. 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

6. Must be in need of systemic treatment and not require immediate cytoreductive therapy

7. Part 1: measurable or non-measurable disease

8. Part 2: measurable disease according to The Revised Criteria/Lugano Classification

9. Part 1: screening tumor biopsy requested, but optional; Part 2: patient must agree to
screening tumor biopsy

10. ECOG performance status 0 or 1; anticipated life expectancy = 10 weeks

11. 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 6 months after the last dose of study drug; male patients must
also agree to refrain from sperm donation during this period.

12. Ability to understand and give written informed consent
Minimum age
18 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
1. Women who are pregnant or intending to become pregnant before, during, or within 6
months after the last dose of study drug; women who are breastfeeding.

2. Central nervous system (CNS) lymphoma, leptomeningeal infiltration, or spinal cord
compression not controlled by prior surgery or radiotherapy; symptoms suggesting CNS
involvement

3. Part 2: History of another malignancy within 2 years, with the exception of:

1. Treated, non-melanoma skin cancers

2. Treated carcinoma in situ (e.g., breast, cervix)

3. Controlled, superficial carcinoma of the urinary bladder

4. T1a or b prostate carcinoma treated according to standard of care, with PSA
within normal limits

5. Papillary thyroid carcinoma Stage I treated surgically for cure

4. Any of the following hematologic abnormalities at baseline (transfusion allowed > 5
days previous):

1. Hemoglobin < 8.0 g/dL

2. Absolute neutrophil count < 1,000 per mm3

3. Platelet count < 75,000 per mm3

5. Any of the following laboratory abnormalities at baseline:

1. Total bilirubin > 1.5 × upper limit of normal (ULN); > 3 × ULN if with Gilbert's
Syndrome

2. AST or ALT > 3 × ULN; > 5 × ULN if due to hepatic involvement by tumor

3. Estimated GFR = 60 mL/min corrected for BSA

4. Albuminuria defined as urine albumin to creatinine ratio < 30 mg/g or < 3
mg/mmol) by spot urine albumin

6. Any of the following coagulation parameter abnormalities at baseline unless on a
stable dose of anticoagulant therapy for a prior thrombotic event:

1. PT or INR > 1.5 × ULN; > 3× ULN if anticoagulated)

2. PTT > 1.5 × ULN; > 3× ULN if anticoagulated

7. Patients with:

1. Active thrombosis, or a history of deep vein thrombosis or pulmonary embolism,
within 4 weeks unless adequately treated and stable

2. Active uncontrolled bleeding or a known bleeding diathesis

3. Significant cardiovascular disease or condition, including:

4. Congestive heart failure or angina pectoris requiring therapy

5. Ventricular arrhythmia requiring therapy or other uncontrolled arrhythmia

6. Severe conduction disturbance (e.g., 3rd degree heart block)

7. QTc interval = 480 milliseconds

8. Left ventricular ejection fraction below the lower limit of normal or < 50% by
MUGA scan or echocardiogram

9. Class III or IV cardiovascular disease according to the New York Heart
Association Functional Classification

10. History of acute coronary syndromes (e.g., MI, unstable angina), coronary
angioplasty, stenting, or bypass within 6 months

8. Significant liver disease, including:

1. Non-infectious hepatitis

2. Hepatic cirrhosis (Child-Pugh Class C)

9. Significant pulmonary disease or condition, including:

1. Significant symptomatic COPD, as assessed by the Investigator

2. History or any current evidence on imaging studies of interstitial lung disease,
pulmonary fibrosis

3. History of pulmonary inflammatory disease, pneumonitis, ARDS

4. History of pneumonia within 6 months

10. Significant corneal disease or condition, including history of or current evidence of
keratitis

11. Known HIV infection or AIDS

12. Active hepatitis B virus or hepatitis C virus infection

13. Any other serious/active/uncontrolled infection, any infection requiring parenteral
antibiotics, or unexplained fever > 38ºC within 2 weeks

14. 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)

15. Known or suspected hypersensitivity to any of the excipients of formulated study drug

16. Inadequate recovery from a surgical procedure, or a major surgical procedure within 4
weeks

17. Any other serious, life-threatening, or unstable preexisting medical condition,
including significant organ system dysfunction, or clinically significant laboratory
abnormality(ies)

18. A psychiatric disorder or altered mental status that would preclude understanding of
the informed consent process

Drugs and Other Treatments to be Excluded:

1. Receipt of:

1. Any CD19-targeted therapy within 3 months

2. Any tumor vaccine within 6 weeks (must have progressed if previously received)

2. Prior autologous/allogeneic CAR-T therapy if known to be CD19-negative after

3. Any other antineoplastic agent for the primary malignancy without delayed toxicity
within 4 weeks or 5 plasma half-lives, whichever is shortest (except nitrosoureas and
mitomycin C within 6 weeks)

4. Any other investigational treatments within 4 weeks

5. Drugs known to impair renal function, including:

1. NSAIDS within 3 days

2. Aminoglycoside antibiotics, amphotericin B, etc. within 1 week

3. Bisphosphonates within 1 month

4. Autologous hematopoietic stem cell transplantation (HSCT) within 3 months

6. Allogeneic HSCT within 6 months, or:

1. If receiving immunosuppression

2. If with active evidence of GVHD

7. Radiotherapy:

1. To target lesions within 4 weeks unless progression of the lesion has been
documented

2. To non-target lesions within 1 week

8. Live/live-attenuated vaccines against infectious diseases within 4 weeks

9. Immunosuppressive or systemic glucocorticoid therapy (> 10 mg prednisone daily or
equivalent) within 2 weeks

10. Prophylactic use of hematopoietic growth factors within 1 week

Study design
Purpose of the study
Treatment
Allocation to intervention
Non-randomised trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Other
Other design features
Phase
Phase 1
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
5/09/2023
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
1/09/2027
Actual
Sample size
Target
140
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
WA
Recruitment hospital [1] 0 0
Linear Clinical Research - Perth
Recruitment postcode(s) [1] 0 0
- Perth
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
Maryland
Country [2] 0 0
Canada
State/province [2] 0 0
Quebec

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
Name
Iksuda Therapeutics Ltd.
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
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).
Trial website
https://clinicaltrials.gov/ct2/show/NCT05365659
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Paul I Nadler, MD
Address 0 0
Iksuda Therapeutics
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
David Browning
Address 0 0
Country 0 0
Phone 0 0
+1-615-975-7776
Fax 0 0
Email 0 0
david.browning@iksuda.com
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/ct2/show/NCT05365659