Intratumoral Injection of IP-001 Following Thermal Ablation in Patients With Advanced Solid Tumors. A Multicenter Phase Ib/IIa Trial With Expansion Cohorts in Melanoma and Soft Tissue Sarcoma Patients.

STATUS

Recruiting
End date

Dec 31, 2023
participants needed

39
sponsor

Swiss Group for Clinical Cancer Research

Updated on 16 October 2022

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Summary

The therapeutic approach taken by trial SAKK 66/17 is different from those already used in clinical practice and possibly offers patients a therapeutic benefit after failure of standard chemotherapy and immunotherapy.

Patients with laser ablation-accessible solid tumors are treated by thermal ablation followed immediately by an intratumoral injection of IP-001 (1 % N-dihydro-galacto-chitosan, Immunophotonics Inc.) for injection). IP-001 is intended to trigger a tumor-specific systemic immune response when exposed to tumor antigens liberated by thermal ablation. There is strong preclinical and early clinical evidence that combining thermal ablation with IP-001 might be able to turn 'cold' tumors into 'hot' tumors, inducing a systemic immune response. This may result in shrinkage of the treated tumor, as well as, long-term response mediated by the patient's immunological defense system against any remaining tumor cells (residual primary and metastatic tumor cells) including tumor cells outside or distant from the treated area (also known as abscopal effect).

This trial will provide information on the safety and tolerability of thermal ablation followed immediately by an intratumoral IP-001 injection (Ablation + IP-001) in patients with laser ablation-accessible solid tumors ('all comers', Part 1 - safety run in). Further information on safety and tolerability, as well as preliminary antitumor activity, will be evaluated in patients with soft tissue sarcoma (Part 2, Cohort1), whereas in melanoma patients, anti-tumor activity will be defined as a primary objective (Part 2, Cohort 2).

The trial treatment consists of an Ablation + IP-001 in 4-week intervals for up to 6 scheduled treatments. Thermal ablation will be performed according to the instruction of the medical device, and IP-001 will be administered in different dose levels according to the trial design. All patients will be followed until progression of disease or until the start of a subsequent treatment.

Description

Despite constant progress in the treatment of patients with advanced solid tumors failing standard systemic treatment, there is still a high unmet medical need to develop new active anticancer drugs or therapies. Although patients with advanced melanoma have benefitted substantially from the new checkpoint inhibitors, monoclonal antibodies, etc., those patients progressing after such treatment are still in high need of additional treatment options. In the field of advanced sarcoma, little to no progress has been made in the last years, and chemotherapy is still standard treatment for these patients. The therapeutic approach taken by trial SAKK 66/17 is different from those already used in clinical practice and possibly offers patients a therapeutic benefit after failure of standard chemotherapy and immunotherapy. There is strong preclinical and early clinical evidence that combining thermal ablation with IP-001 (1 % N-dihydro-galacto-chitosan, Immunophotonics Inc.) for injection) might be able to turn 'cold' tumors into 'hot' tumors, inducing a systemic immune response. This may result in shrinkage of the treated tumor, as well as long-term response mediated by the patient's immunological defense system against any remaining tumor cells (residual primary and metastatic tumor cells), including tumor cells outside or distant from the treated area (also known as abscopal effect).

The primary objective of Part 1 is to determine the safety and tolerability of thermal ablation followed immediately by an intratumoral IP-001 injection (Ablation + IP-001) in patients with laser ablation-accessible solid tumors ('all comers').

The primary objective of Part 2 - Cohort 1 (soft tissue sarcoma, STS) is to further determine the safety and tolerability of thermal ablation followed immediately by an intratumoral IP-001 injection (Ablation + IP-001) in the dose established in Part 1 of the trial.

The primary objective of Part 2 - Cohort 2 (melanoma) of the trial is to define anti-tumor activity of thermal ablation followed immediately by an intratumoral IP-001 injection (Ablation + IP-001) utilizing the dose established in Part 1 of the trial.

The secondary objective of the trial is

to further determine the safety and tolerability of IP-001 (Part 2, Cohort 1 and 2)
to assess the preliminary anti-tumor activity in STS patients (Part 2, Cohort 1)
to observe further signs of clinical preliminary anti-tumor activity in patients with melanoma (Part 2, Cohort 2).

Details

Condition	Advanced Solid Tumors
Treatment	Thermal ablation, IP-001
Clinical Study Identifier	NCT03993678
Sponsor	Swiss Group for Clinical Cancer Research
Last Modified on	16 October 2022

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Eligibility		Yes	No	Not Sure
Inclusion Criteria
	Written informed consent according to Swiss law and ICH/GCP regulations before registration
	Part 1: - 'All comer' Patients with either histologically or cytologically confirmed advanced or recurrent solid tumor cancer who failed standard therapy, are not eligible for standard therapy, or for whom no effective standard therapy is available and not requiring fast responses
	Part 2, Cohort 1 - Sarcoma cohort: Patients with either histologically or cytologically confirmed advanced or recurrent soft tissue sarcoma who failed standard therapy, are not eligible for standard therapy or for whom no effective standard therapy is available
	Part 2, Cohort 2 - Melanoma cohort: Patients with either histologically or cytologically confirmed advanced or recurrent melanoma who failed standard therapy (including a BRAF inhibitor for BRAF-mutant patients), are not eligible for standard therapy or for whom no effective standard therapy is available and have LDH < ULN
	Presence of at least one tumor lesion that is laser ablation-accessible, with a minimum size of 1.0 cm and located (typically subcutaneously) that it can be treated with Ablation + IP-001 without risk of skin necrosis or serious damage to other adjacent vital and healthy tissue. This tumor lesion may either belong to the skin, lymph nodes, muscles or subcutaneous tissue
	Measurable or evaluable disease, determined with the most suitable imaging method (CT, PET-CT or MRI), according to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1
	No evidence of CNS progression for at least 4 weeks after completion of CNS-directed therapy as ascertained by clinical examination and brain imaging (MRI or CT) during the screening period
	Age ≥ 18 years
	WHO performance status 0-2
	Bone marrow function: neutrophil count ≥ 1.5 x 109/L, platelet count ≥ 100 x 109/L, hemoglobin ≥ 90 g/L
	Hepatic function: bilirubin ≤ 1.5 x ULN, aspartate transaminase (AST) and alanine transaminase ALT ≤ 2.5 x ULN (or ≤ 5 x ULN in presence of liver metastasis)
	Renal function: estimated glomerular filtration rate (eGFR) > 30 mL/min/1.73m2 (according to Chronic Kidney Disease - Epidemiology Collaboration (CKD-EPI) formula)
	Women with child-bearing potential are using effective contraception, are not pregnant or lactating and agree not to become pregnant during trial treatment and for an additional 90 days after the last dose of investigational drug. Women of childbearing potential must have a negative serum human chorionic gonadotropin (hCG) pregnancy test before inclusion
	Men agree not to donate sperm or to father a child during trial treatment and until 90 days after the last dose of investigational drug
Exclusion Criteria
	Malignant primary brain tumors, or clinically unstable symptoms from brain metastases or leptomeningeal disease, indicative of active disease
	Patients who have received chemotherapy, radiotherapy, immunotherapy, or concurrent or recent treatment with any other investigational agents within 21 days (7 days for single fraction of palliative radiotherapy, 42 days for nitrosoureas or mitomycin C) prior to registration
	Patients who have not recovered to ≤ CTCAE grade 1 from all side effects of prior therapies except for residual toxicities, such as alopecia, which do not pose an ongoing medical risk
	Patients with a previously treated malignancy, when the risk of the prior malignancy interfering with either safety or efficacy endpoints is not very low
	Patients with prostate cancer must have discontinued anti-androgens (e.g., bicalutamide, nilutamide) for at least 6 weeks prior to registration; chemical castration with luteinizing hormone-releasing hormone analogues must be continued or patients must be surgically castrated
	Concomitant treatment with systemic corticosteroids (daily dose of 10 mg prednisolone or equivalent is allowed) or other immunosuppressive therapy (e.g. methotrexate)
	Oral anti-coagulation with vitamin K antagonists (e.g. phenprocoumon, warfarin) and heparin, including therapeutically dosed low molecular weight heparins (LMWH) which cannot be stopped 24 hours prior to trial treatment (low dose aspirin allowed) and bleeding diathesis
	Severe or uncontrolled cardiovascular disease (congestive heart failure New York Heart Association classificationIII or IV), unstable angina pectoris, history of myocardial infarction within the last six months, serious arrhythmias requiring medication (with exception of atrial fibrillation or paroxysmal supraventricular tachycardia), significant QT-prolongation, uncontrolled hypertension
	Known history of human immunodeficiency virus (HIV) or active chronic Hepatitis C or Hepatitis B Viral infection or any uncontrolled active systemic infection (> CTCAE grade 2) requiring intravenous (iv) antimicrobial treatment
	Serious autoimmune disease (e.g. systemic lupus erythematodes) which is judged to reduce an anti-tumor immune response
	Known allergic reaction to shellfish, crabs, crustaceans, or any trial components, including medical device, used in trial treatment
	Any other serious underlying medical, psychological, familial or geographical condition, which in the judgment of the investigator may limit compliance with the planned staging, treatment and follow-up, or place the patient at high risk from treatment-related complications

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Intratumoral Injection of IP-001 Following Thermal Ablation in Patients With Advanced Solid Tumors. A Multicenter Phase Ib/IIa Trial With Expansion Cohorts in Melanoma and Soft Tissue Sarcoma Patients.