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T-cell Therapy with CRISPR PD1-edited Tumor Infiltrating Lymphocytes for Patients with Metastatic Melanoma

Status: Recruiting
Location: See location...
Intervention Type: Biological
Study Type: Interventional
Study Phase: Phase 1
SUMMARY

The purpose of this study is to assess wether it is safe and feasible to treat patients with tumor infiltrating lymphocytes that have been silenced for PD-1, using CRISPR-Cas9.

Eligibility
Participation Requirements
Sex: All
Minimum Age: 18
Maximum Age: 75
Healthy Volunteers: f
View:

• Histologically confirmed inoperable or metastatic melanoma (stage IIIc or IV).

• Progressive disease after standard treatment with anti-PD-1 check-point inhibition or combination of aforementioned with anti-CTLA-4 check-point inhibition.

• Age: 18 - 75 years at the time of signed Informed consent.

• ECOG performance status of ≤1 (Appendix 2).

• Is fit for tumor resection and has at least one lesion (\> 1 cm3) available for surgical resection for manufacture of TIL. (Unless TILs are already available through metastasectomy prior to enrollment in this study, as described in step one under study design)

• At least one measurable parameter in accordance with RECIST 1.1 -criteria (excluding the lesion to be resected).

• LVEF assessment with documented LVEF ≥50% by either TTE or MUGA.

• Sufficient organ function, including:

‣ Absolute neutrophil count (ANC) ≥ 1.500 /μl

⁃ Leucocyte count ≥ lower normal limit

⁃ Platelets ≥ 100.000 /μl and \<700.000 /μl

⁃ Hemoglobin ≥ 6.0 mmol/l

⁃ eGFR \> 70

⁃ S-bilirubin ≤ 1.5 times upper normal limit (Exception: Subjects with liver metastasis ≤ 2.5 × ULN)

⁃ ASAT/ALAT ≤ 2.5 times upper normal limit (Exception: Subjects with liver metastasis ≤ 5.0 × ULN)

⁃ Alkaline phosphatase ≤ 5 times upper normal limit

⁃ Lactate dehydrogenase ≤ 5 times the upper normal limit

⁃ Sufficient coagulation: APPT\<40 and INR\<1.5

• Signed statement of consent after receiving oral and written study information

⁃ Willingness to participate in the planned controls and capable of handling toxicities.

⁃ Subject must receive CRISPR-TIL as the next therapy following tumor resection unless bridging therapy is administered:

∙ Bridging therapy is discouraged. However, if in the opinion of the Investigator, the subject requires immediate therapy after tumor resection, the subject may receive bridging therapy for the period during which the subject is awaiting the manufacture of TIL-infusion product. Bridging therapy may be a continuation of the therapy the subject was receiving prior to tumor resection or may be a new therapy.

‣ Following this bridging therapy, the subject must adhere to the mandatory washout periods (described in exclusion criterion 1) and must continue to have measurable disease prior to receiving CRISPR-TIL.

⁃ Age and Reproductive Status:

∙ Women of childbearing potential (WOCBP) must have a negative urine or serum pregnancy test AND must agree to use an effective method of contraception starting at the first dose of chemotherapy for at least 12. WOCB must also agree to refrain from egg donation, storage, or banking during these same time periods. The following are considered safe methods of contraception:

⁃ Hormonal anticonception (birth control pills, spiral, depot injection with gestagen, subdermal implantation, hormonal vaginal ring, and transdermal depot patch)

• Intrauterine device

• Surgical sterilization

• Surgical sterilization of male partner with verification of no sperm after the procedure

• Menopause (for more than 12 months)

‣ Male subjects must be surgically sterile or agree to use a double-barrier contraception method or abstain from sexual activity with an WOCBP starting at the first dose of chemotherapy and for 6 months thereafter. Male subjects must also agree to refrain from sperm donation, storage, or banking.

Locations
Other Locations
Denmark
CCIT-DK
RECRUITING
Herlev
Contact Information
Primary
Joel E Sohlin, MD
joel.emanuel.sohlin@regionh.dk
+4538689198
Backup
Inge Marie Svane, MD, phd, prof
inge.marie.svane@regionh.dk
+4538682131
Time Frame
Start Date: 2024-12-16
Estimated Completion Date: 2028-01-01
Participants
Target number of participants: 10
Treatments
Experimental: Autologous CRISPR-PD1 modified tumor infiltrating lymphocytes
Tumor infiltrating lymphocytes expanded ex vivo from an excised tumor and treated with CRISPR-Cas9 to effectively silence the PD-1 coding gene in the T-cells. This is given as an intravenous infusion after lymphodepleting chemotherapy using cyclophosphamide and fludarabine-phosphate and followed by up to 6 doses of high-dose interleukin-2 infusions.
Related Therapeutic Areas
Sponsors
Leads: Inge Marie Svane

This content was sourced from clinicaltrials.gov

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