ClinicalTrials.gg
RecruitingNCT06783270CRISPR-TILUpdated Jan 20, 2025

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

A Phase 1 interventional study of TIL therapy in Melanoma Metastatic, sponsored by Inge Marie Svane. Recruiting at 1 site in Denmark. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2025-01-20.

Sponsored by Inge Marie Svane · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Started Dec 2024; still recruiting 1 year 10 months later.
Phase
Phase 1
Study type
Interventional
Enrollment
10
Allocation
Not applicable
Ages
18 Years to 75 Years
Sex
All
01

Study 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.

Read the detailed description

In this study the investigators will treat patients with advanced (inoperable) or metastatic melanoma with tumor infiltrating lymphocytes (TILs) in combination with lymphodepleting chemotherapy and high-dose interleukin-2. The TILs are harvested from a patient tumor and expanded a thousand-fold in a laboratory over approximately 6 weeks before being infused back into the patient. This is a well known and tried treatment regimen, often called TIL-therapy or TIL-ACT. In this study the investigators will add CRISPR-Cas9 modification to the production process of the TILs to silence the expression of PD-1 on the surface of the infused cells. The aim of this study is to demonstrate wether treatment with these PD1-deficient TILs (CRISPR-TILs) is safe and feasible.

02

Conditions studied

  • Melanoma Metastatic

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Keywords

  • TIL-therapy
  • TIL-ACT
03

In context

Melanoma

3,370 studies on the registry are indexed under Melanoma; 578 are open to participants now.

This study's planned enrollment of 10 is below the median of 40 across 2,649 interventional studies indexed under Melanoma.

Browse Melanoma studies →

Lead sponsor

Inge Marie Svane is the lead sponsor of 25 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. confirmed inoperable or melanoma (stage IIIc or IV).
  2. Progressive disease after standard treatment with check-point inhibition or combination of aforementioned with anti-CTLA-4 check-point inhibition.
  3. Age: 18 - 75 years at the time of signed .
  4. performance status of ≤1 (Appendix 2).
  5. 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)
  6. At least one measurable parameter in accordance with 1.1 -criteria (excluding the lesion to be resected).
  7. assessment with documented LVEF ≥50% by either TTE or MUGA.
  8. Sufficient organ function, including:

    • (ANC) ≥ 1.500 /μl
    • Leucocyte count ≥ lower normal limit
    • ≥ 100.000 /μl and \<700.000 /μl
    • ≥ 6.0 mmol/l
    • > 70
    • S- ≤ 1.5 times upper normal limit (Exception: Subjects with liver metastasis ≤ 2.5 × )
    • 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 \<1.5
  9. Signed statement of consent after receiving oral and written study information
  10. Willingness to participate in the planned controls and capable of handling toxicities.
  11. 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 (described in exclusion criterion 1) and must continue to have prior to receiving CRISPR-TIL.
  12. Age and Reproductive Status:

    • Women of (WOCBP) must have a negative urine or serum pregnancy test AND must agree to use an effective method of 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.

Exclusion criteria

Exclusion Criteria:

  1. Subject has received or plans to receive the following therapy/treatment prior to tumor resection (TR) or lymphodepleting chemotherapy (LDC):

    • Cytotoxic chemotherapy: 3 weeks before TR and LDC.
    • Small molecules/TKI: Washout period 1 week before TR and LDC.
    • Immune therapy (monoclonal AB therapy, CPI, and biologics): 2 weeks before TR and LDC
    • Prior T-cell therapy, including gene therapy using an integrating vector.
    • at dose equivalent > 10 mg prednisone or any other therapy. 2 weeks before TR and LDC. Note: Use of topical steroids is not an exclusion.
    • treatment: 4 weeks or 5 half-lives, whichever is shorter before TR and LDC.
    • Radiation to the pelvis and/or multiple bones containing ≥ 25% of bone marrow: 4 weeks before TR and LDC.
    • Whole brain radiotherapy or brain stereotactic radiosurgery: 4 weeks before TR and LDC.
    • Radiotherapy to the target lesions: 3 months prior to TIL infusion. A lesion with unequivocal progression post-radiotherapy may be considered a target lesion.
  2. A history of prior . Patients treated for another malignancy can participate if they are without signs of disease for a minimum of 2 years after treatment. Subjects with curatively treated ductal carcinoma in situ (DCIS or LCIS) breast cancer for which they are taking hormonal therapy is acceptable. Resectable squamous or basal cell carcinoma of the skin is acceptable.
  3. Patients with ocular/mucosal or other non-cutaneous melanoma. Unknown primary melanoma is eligible.
  4. Toxicity from previous anti-cancer therapy must have resolved to ≤ Grade 1 or baseline prior to enrollment (except for non- toxicities e.g., alopecia, vitiligo). Subjects with Grade 2 toxicities who are deemed stable or irreversible (e.g., peripheral neuropathy) can be enrolled.
  5. Patients who have more than 2 or who have any CNS lesion that is symptomatic, greater than 1 cm in diameter, or show significant surrounding edema on MRI scan will not be eligible until they have been treated and demonstrated no clinical or radiologic CNS progression for at least 2 months.
  6. The following patients will be excluded because of their inability to receive high-dose interleukin-2 (See appendix 5):

    • History of coronary revascularization
    • Documented of less than 45% in patients with clinically significant atrial and/or ventricular arrhythmias including but not limited to atrial fibrillation, ventricular tachycardia, 2o or 3o heart block
    • Documented FEV-1 less than or equal to 60% predicted value for patients with: A prolonged history of cigarette smoking (greater than 20 pack years), large tumor burden in the lungs, or Symptoms of respiratory distress.
  7. Known to one of the active drugs or one or more of the .
  8. Severe medical conditions, such as severe asthma/COLD, significant cardiac disease, and poorly regulated insulin-dependent diabetes mellitus among others.
  9. () \< 70 ml/min*.
  10. Acute/chronic infection with , hepatitis, and syphilis among others.
  11. Severe allergies or previous anaphylactic reactions.
  12. Active or immune-mediated disease that has not yet resolved. Subjects with the following will be eligible:

    • Immune-mediated AEs secondary to immunotherapy which have resolved to ≤ Grade 1 without steroids;
    • Hypothyroidism, Type I diabetes, adrenal insufficiency, or pituitary insufficiency that are stable on replacement therapy;
    • Disorders such as asthma, vitiligo, psoriasis, or atopic dermatitis that are well-controlled without requiring systemic immunosuppression;
    • Other stable immune conditions that do not require prednisone higher than 10 mg/day or their equivalent dose for other corticosteroid agents may be acceptable with the agreement of the Sponsor.
  13. Pregnant women and women breastfeeding.
  14. Subjects deemed unlikely to fully comply with protocol requirements by the study investigator.

    • In selected cases it can be decided to include a patient with a eGFR \< 70 ml/min with the use of a reduced dose of chemotherapy.
Terms in these criteria, in plain language(29)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

PD-1, PD-L1 and checkpoint inhibitors

PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.

PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

Washout period

A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
10 participants (estimated)

Study arms

  • 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.

    Biological: TIL therapy

Interventions

  • BiologicalTIL therapy

    Compared to traditional TIL-therapy, this study will include silencing of the PD-1 coding gene in the TILs using non-viral CRISPR-Cas9 prior to the rapid expansion protocol.

06

What researchers measure

Primary outcomes

  1. Feasibility

    Assess feasibility measured by the number of subjects who undergo surgery and successfully undergo CRISPR-TIL infusion

    Time frame: From surgery to CRISPR-TIL infusion (5-10 weeks)

  2. Incidence rate of treatment-emergent adverse events

    Determine the safety and tolerability measured by the incidence rate of grade 3 treatment-emergent adverse events and serious adverse events by severity and their relationship to the CRISPR-TIL infusion.

    Time frame: From admission to 2nd evaluation (3 months after CRISPR-TIL infusion)

Secondary outcomes

  1. Objective response rate

    Assess the clinical effect of the treatment by use of the objective response rate (using RECIST 1.1).

    Time frame: From treatment until the 12 months evaluation scan.

07

Study locations

1 of 1 sites recruiting
  • CCIT-DK
    Herlev, Capital region 2730, Denmark
    Recruiting
08

References and documents

Publications

  • Chamberlain CA, Bennett EP, Kverneland AH, Svane IM, Donia M, Met O. Highly efficient PD-1-targeted CRISPR-Cas9 for tumor-infiltrating lymphocyte-based adoptive T cell therapy. Mol Ther Oncolytics. 2022 Jan 10;24:417-428. doi: 10.1016/j.omto.2022.01.004. eCollection 2022 Mar 17. PubMed 35141398 ↗

Individual participant data

Plan to share: No — Due to a small patient cohort, all individual patient data will be recognizable and assignable to the persons themselves

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 20, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06783270
Lead sponsor
Inge Marie Svane
Responsible party
Inge Marie Svane (MD, professor, center leader, Herlev Hospital) — Sponsor-investigator
First posted
Jan 20, 2025
Start date
Dec 16, 2024
Primary completion
Jan 1, 2027 (estimated)
Completion
Jan 1, 2028 (estimated)
Last update
Jan 20, 2025

Study contacts

Joel E Sohlin, MD
Contact
joel.emanuel.sohlin@regionh.dk
+4538689198
Inge Marie Svane, MD, phd, prof
Contact
inge.marie.svane@regionh.dk
+4538682131

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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