Feasibility and Safety of IMP321 for Advanced Stage Solid Tumors

• Status: Recruiting
• Trial end date: 2024-06-30
• Target enrollment: 0
• Participant gender: All

Summary

This phase I trial aims to investigate a potential enhancement of IMP321 immune-activating effects by new routes of administration: direct injection of IMP321 into the tumor tissue; intra-peritoneal therapy; combination of chemotherapy and/or immunotherapy/targeted therapy with active immunotherapy

• Phase: Phase 1
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Institut für Klinische Krebsforschung IKF GmbH at Krankenhaus Nordwest; Krankenhaus Nordwest
• Treatments: Avelumab

Criteria

Inclusion Criteria:

1. Histologically confirmed locally advanced or metastatic solid tumor

2. Tumor is accessible for repeated injections and biopsies (only for Stratum A)

3. Peritoneal carcinomatosis (only for Stratum B)

4. Patient failed standard therapy or refused standard therapy or is intolerable towards standard therapy (Strata A, B, D) or who receives standard-of-care therapy indicated for his/her tumor entity (only for Stratum C)

5. Patient has not received more than 4 prior lines of therapy. Neoadjuvant/adjuvant treatment is not counted unless progression occurs <6 months after completion of the treatment. In these cases neoadjuvant/adjuvant treatment is counted as one prior line. (Only for Stratum D)

6. Patient does not receive a concurrent chemotherapy (only for Strata A, B, D)

7. Female and male patients ≥ 18 years. Patients in reproductive age must be willing to use highly effective contraception during the study and 4 months after the end of the study. Female patients with childbearing potential need to have a negative pregnancy test within 7 days before study start.

8. ECOG 0 or 1

9. Adequate hematological, hepatic and renal function parameters:

• ANC (absolute neutrophil count) ≥ 1.500/µl (for Stratum D: >1.500/µl)

• Leukocytes ≥ 3.000/µl

• Platelets ≥ 75.000/µl (for Stratum D: ≥ 100.000/µl)

• Serum creatinine ≤ 1.5 x upper limit of normal, or GFR ≥ 50 ml/min

• Bilirubin ≤ 1.5 - 3 x upper limit of normal (for Stratum D: ≤ 1.5 x ULN)

• AST and ALT ≤ 3 x upper limit of normal (≤ 5 x if liver metastases are present) (for Stratum D: AST and ALT ≤ 2.5 x ULN; ≤ 5 x if liver metastases are present)

• Alkaline phosphatase ≤ 6 x upper limit of normal

• Hemoglobin ≥ 9g/dL

10. Adequate coagulation functions as defined by International Normalized Ratio (INR) ≤ 1.5, and a partial thromboplastin time (PTT) ≤ 5 seconds above the ULN (unless receiving anticoagulation therapy). Patients receiving warfarin/ phenprocoumon must be switched to low molecular weight heparin and have achieved stable coagulation profile.

11. Patient able and willing to provide written informed consent and to comply with the study protocol and with the planned surgical procedures

12. Evidence of measurable disease as defined by RECIST v1.1 (only for Stratum D)

13. Expected survival > 3 months

14. Resolution of toxicity associated with prior or current therapy to grade <2 (except for alopecia and transaminases in case of liver metastases)

Exclusion Criteria:

1. Inability to understand the aims of the study and/or protocol procedures

2. Bleeding ulcerative tumors or tumors requiring intratumoral injections of study drug into parenchymatous organs such as, but limited to liver, spleen or pancreas (only for Stratum A)

3. Patients with contraindication versus a laparoscopy or refusing a laparoscopy (only for Stratum B)

4. Hypersensitivity to IMP321, avelumab (only for Stratum D) or any ingredient of the injection solution

5. History of severe allergic, anaphylactic, or other hypersensitivity reactions to chimeric or humanized antibodies or fusion proteins

6. Currently receiving any other antineoplastic treatment including irradiation, or targeted small molecule therapy, or biological cancer therapy, or less than 4 weeks since completion of these therapies and first dose of study treatment (only Strata A, B and D)

7. Prior PD-1/PDL-1 targeted therapy (only for Stratum D)

8. Cirrhosis of the liver (Child > Grade A), pronounced alcohol abuse with anticipated detoxification, severe pulmonary infection with considerable reduction of pulmonary function

9. Clinically significant active coronary heart disease, cardiomyopathy or congestive heart failure, NYHA III-IV (for Stratum D: ≥ NYHA II) within 6 months prior to first dose of study treatment

10. Cerebral or leptomeningeal metastases Note: Subjects with previously treated brain metastases may participate if they meet the following criteria: 1) are stable for at least 28 days prior to the first dose of study treatment and if all neurologic symptoms returned to baseline; 2) have no evidence of new or enlarging brain metastases; and 3) have not been using steroids for at least 7 days prior to first dose of study treatment. This exception does not include carcinomatous meningitis which is excluded regardless of clinical stability.

11. Chronic inflammatory bowel disease

12. Active infection requiring systemic therapy at the start of study treatment or chronic infection or serious intercurrent infection within 4 weeks prior to first dose of study treatment

13. QTcF >480 ms, family or personal history of long or short QT syndrome, Brugada syndrome or known history of QTc prolongation, or Torsade de Pointes (TdP)

14. Uncontrolled electrolyte disorders that can worsen the effects of a QTc-prolonging drug (e.g., hypocalcaemia, hypokalaemia, hypomagnesemia)

15. Positive test for human immunodeficiency virus (HIV) or known acquired immunodeficiency syndrome

16. Active hepatitis B (defined as having a positive hepatitis B surface antigen [HBsAg] test) or hepatitis C Note: Patients with past hepatitis B virus (HBV) infection or resolved HBV infection (defined as having a negative HBsAg test and a positive antibody to hepatitis B core antigen antibody test) are eligible. Note: Patients positive for hepatitis C virus (HCV) antibody are eligible only if polymerase chain reaction testing is negative for HCV ribonucleic acid (RNA).

17. History or evidence of interstitial lung disease, active non-infectious pneumonitis or active tuberculosis

18. Active or prior autoimmune disease requiring immunosuppressive therapy that might deteriorate when receiving an immunostimulatory agent. Patients with diabetes type I, vitiligo, psoriasis, or hypo- or hyperthyroid disease not requiring immunosuppressive treatment are eligible.

19. Known history of immune-mediated colitis, pneumonitis, pulmonary fibrosis (only for Stratum D)

20. Administration of a live, attenuated vaccine within four weeks prior to start of maintenance treatment or anticipation that such a live attenuated vaccine will be required during the remainder of the study.

21. Any condition requiring continuous systemic treatment with either corticosteroids (>10 mg daily prednisone equivalents) or other immunosuppressive medications within 4 weeks prior to first dose of study treatment

21. Treatment with systemic immunostimulatory agents (including but not limited to interferons or interleukin-2) within four weeks or five half-lives of the drug, whichever is shorter, prior to start of study treatment. Intranasal, inhaled or topical steroids, eye drops or local steroid injection (eg, intra-articular injection), steroids as premedication for hypersensitivity reactions (eg, computed tomography [CT] scan premedication) and physiological replacement doses of up to 10 mg daily prednisone equivalent are permitted in the absence of active autoimmune disease.

22. Treatment with systemic immunostimulatory agents (including but not limited to interferons or interleukin-2) within four weeks or five half-lives of the drug, whichever is shorter, prior to start of study treatment 23. Any previous venous thromboembolism > National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) Grade 3 within the last 6 months 24. Past history of severe allergic episodes and/ or Quincke's oedema 25. Prior organ transplantation or stem cell transplantation 26. On-treatment participation in another clinical study in the period 30 days prior to start of study treatment and during the study 27. Patients in a closed institution according to an authority or court decision (AMG § 40, Abs. 1 No. 4) 28. Pregnancy or lactation 29. Planned intratumoral injections in parenchymatous organs (e.g. liver, spleen, adrenal gland, pancreas) 30. Life-threatening illness unrelated to cancer 31. History of irAEs of CTCAE Grade 4 requiring steroid treatment (only for Stratum D) 32. Persisting toxicity related to prior therapy (NCI CTCAE v4.03 Grade > 1); however, alopecia, sensory neuropathy Grade <=2, or other Grade <=2 AEs not constituting a safety risk based on investigator's judgment are acceptable (only for Stratum D) 33. Other severe acute or chronic medical conditions, psychiatric conditions including recent (within the past year) or active suicidal ideation or behavior; or laboratory abnormalities that may increase the risk associated with study participation or study treatment administration or may interfere with the interpretation of study results and, in the judgment of the investigator, would make the patient inappropriate for entry into this study.