ClinicalTrials.gg
RecruitingNCT07163403DELAYUpdated Apr 13, 2026

First in Human Pilot Study to Assess the Safety and Efficacy of Dendritic Cells Loaded With Frameshift Derived Neopeptides for the Prevention of Cancer in of Lynch Syndrome Carriers

A Phase 1 interventional study of Autologous Tolerogenic Dendritic cells in Lynch Syndrome, sponsored by Fundacion Clinic per a la Recerca Biomédica. Recruiting at 1 site in Spain. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-04-13.

Sponsored by Fundacion Clinic per a la Recerca Biomédica · Phase 1, Interventional, and Prevention

From the registry’s dates

  • Started Sep 2025; still recruiting 1 year 2 months later.
Phase
Phase 1
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

Tha aim of this clinical trial is to evaluate safety and tolerability of autologous peripheral blood differentiated and matured adult dendritic cells. Immunogenicity of the prduct(DC-DELAY) will be evaluated also.

Read the detailed description

First in human, pilot, open-label, prospective, single-site, non-randomised study

02

Conditions studied

03

In context

Colorectal Neoplasms, Hereditary Nonpolyposis

145 studies on the registry are indexed under Colorectal Neoplasms, Hereditary Nonpolyposis; 59 are open to participants now.

This study's planned enrollment of 20 is below the median of 200 across 75 interventional studies indexed under Colorectal Neoplasms, Hereditary Nonpolyposis.

Browse Colorectal Neoplasms, Hereditary Nonpolyposis studies →

Lead sponsor

Fundacion Clinic per a la Recerca Biomédica is the lead sponsor of 64 studies on the registry; 27 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
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. Individuals that are carriers of a pathogenic or likely pathogenic germline variant in one of the mismatch repair genes (MLH1, MSH2, MSH6).
  2. Participants must have no evidence of active or previous invasive cancer.
  3. Participants must have endoscopically accessible colon.
  4. Participants must consent to follow the standard of care surveillance with colonoscopy and every 1-2 years.
  5. Age ≥ 18 years
  6. (ECOG) performance status ≤ 1 ( ≥70%).
  7. ≥10 g/dL or haematocrit ≥30%; Leukocyte count ≥3.0x109/l; count ≥100x109/l; ≥1.5x109/l; Absolut lymphocyte count ≥0.8x109/l.
  8. (calculated if measured is not available) ≥60mL/min/1.73m2.
  9. (AST) (serum glutamic oxaloacetic transaminase [SGOT]/alanine aminotransferase (ALT) (serum glutamic pyruvic transaminase [SGPT] ≤2 times the institutional (ULN).
  10. Total ≤ 1.5 the ULN; participants with Gilbert's disease may be enrolled with higher total bilirubin if their direct bilirubin is ≤1.5 times the ULN.
  11. Written .
  12. Women of * must have a negative pregnancy test in serum before the inclusion in the study and agree to use highly effective methods until one year following the las immunization dose. Highly effective contraceptive methods will include: combined (estrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation (oral, intravaginal, transdermal), progestogen-only hormonal contraception associated with inhibition of ovulation (oral, injectable, implantable), intrauterine device, bilateral tubal occlusion, vasectomized partner and sexual abstinence. * A woman will be considered of childbearing potential, following menarche and until becoming unless permanently sterile. Permanent sterilization methods include hysterectomy, bilateral salpingectomy and bilateral oophorectomy. A postmenopausal state is defined as 0 menses for 12 months without an alternative medical cause. A high follicle stimulating hormone level in the postmenopausal range may be used to confirm a post-menopausal state in women not using hormonal contraception or hormonal replacement therapy. However, in the absence of 12 months of amenorrhea, a single follicle stimulating hormone measurement is insufficient.

Exclusion criteria

Exclusion Criteria:

  1. Individuals that are carriers of a pathogenic or likely pathogenic germline variant in PMS2.
  2. Individuals with active or previous malignancy (excluding non-melanoma skin cancer)
  3. Participants who cannot be removed from their baseline medication for the duration of the trial to administer the treatment. This includes the daily use of >100 mg aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs) or cyclooxygenase (COX) inhibitors.
  4. Any serious uncontrolled and /or unstable pre-existing medical disorder (aside from malignancy exception above), psychiatric disorder, or other conditions that could interfere with participant's safety, obtaining , or compliance to the study procedures.
  5. Patients with active systemic bacterial, viral or fungal infections or known to have (HIV) or to test positive for HIV antibody at screening.
  6. Positive surface antigen or antibody tests at screening.
  7. History of organ allograft or other history of immunodeficiency
  8. Individuals with a condition requiring systemic treatment with either or other medications.
  9. Pregnant or breastfeeding or planning to become pregnant during the first year after the completion of the study treatment.
  10. Men attempting or planning to conceive children during the first year after the completion of the study treatment.
  11. Participants cannot receive any other investigational agents in the last month before its inclusion.
  12. Participants unable to refrain to receive any type of vaccination during the first 12 weeks of the trial.
  13. Impossibility to proceed to the leukapheresis (e.g. absence of peripheral venous access).
  14. Any other problem that according to the investigator could interfere with the evaluation of the objectives
Terms in these criteria, in plain language(21)

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.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

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.

Karnofsky performance status (KPS)

A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.

Studies often ask for 60 or 70 and above. Your doctor gives the score.

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).

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.

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.

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.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

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.

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.

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.

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.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

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.

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.

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.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

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.

05

Study design

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

Study arms

  • Experimental
    Single Arm

    Patients with Lynch Syndrome which will recieve their own dendritic cells to evaluate safety and tolerability

    Biological: Autologous Tolerogenic Dendritic cells

Interventions

  • BiologicalAutologous Tolerogenic Dendritic cells

    Autologous peripheral blood differentiated and matured adult dendritic cells loaded with Frameshift-derived neopeptides (FSDN) (DC-DELAY). Eligible participants will receive six intradermal immunizations of DC-DELAY at week 0, 2, 4, 6, 8 and 10.

06

What researchers measure

Primary outcomes

  1. Proportion of participants with grade 3-4 related adverse events for 12 months following the first immunization.

    To evaluate the safety and tolerability of autologous peripheral blood differentiated and matured adult dendritic cells loaded with frameshift derived neopeptides (DC-DELAY) in LS carriers.

    Time frame: the first 12 month after the last inmunization

  2. Proportion of participants with specific frameshift-derived neoantigens immune response induced by DC-DELAY as measured in peripheral blood by enzyme-linked immune absorbent spot(ELISpot) assay at week 12.

    To evaluate specific frameshift-derived neoantigens immunogenicity of DC-DELAY in LS carriers at week 12. NOTE: Immune response will be defined as T-cell reactivity to at least 1 out of 4 of the pools.

    Time frame: At week 12.

Secondary outcomes

  1. Proportion of participants with early immune response induced by DC-DELAY as measured inperipheral blood by ELISpot assay at week 6.

    To evaluate the early-term specific frameshift-derived neoantigens immunogenicity of DC-DELAY in LS carriers at week 6.

    Time frame: Week 6

  2. Proportion of participants with long term immune response induced by DC-DELAY as measured in peripheral blood by ELISpot assay at months 6, 12 and 24.

    To evaluate the long-term specific frameshift-derived neoantigens immunogenicity of DC-DELAY in LS carriers at 6, 12 and 24 months.

    Time frame: Month 6, 12 and 24.

  3. Proportion of participants with immune response induced by DC-DELAY as measured in the normal colonic mucosa at month 12.

    To evaluate the specific frameshift-derived neoantigens immunogenicity of DC-DELAY in the normal colonic mucosa in LS carriers at month 12.

    Time frame: Month 12

  4. Proportion of participants with mismatch repair deficient colorectal adenomas, advanced neoplasia and/or carcinoma throughout the study duration.

    To evaluate the effect of DC-DELAY in LS carriers at week 12 on the burden of mismatch repair deficient colorectal neoplasia throughout the study duration.

    Time frame: Month 12 and month 36

  5. Proportion of participants with LS-related carcinomas throughout the study duration (36 months).

    To evaluate the effect of DC-DELAY immunization in LS carriers at week 12 on the burden of LSrelated carcinomas throughout the study duration.

    Time frame: Week 12 and month 36

  6. Number and proportion of participants with related adverse events at 7 days after each DC-DELAY immunization.

    To evaluate the safety and tolerability of DC-DELAY

    Time frame: 7 days after each iminization, week 0, week 2, week 4, week 6, uweek 8 and week 10.

  7. Number and proportion of participants with grade 3-4 related adverse events throughout the study duration (36 months).

    To evaluate the safety and tolerability of DC-DELAY throughout the study duration.

    Time frame: Through study completion, an average of 3 years.

07

Study locations

1 of 1 sites recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Sep 2025 (actual). Primary completion is estimated for Sep 2028, 36 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 30, 2025
First posted
Sep 9, 2025
StartActual
Sep 4, 2025
Primary completionEst.
Sep 20, 2028
CompletionEst.
Sep 20, 2028
Last update
Apr 13, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 13, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07163403
Lead sponsor
Fundacion Clinic per a la Recerca Biomédica
Responsible party
Sponsor
First posted
Sep 9, 2025
Start date
Sep 4, 2025
Primary completion
Sep 20, 2028 (estimated)
Completion
Sep 20, 2028 (estimated)
Last update
Apr 13, 2026

Study contacts

Laura Burunat, Graduate
Contact
burunat@recerca.clinic.cat
0034 932275400 ext. 4198
Thomas Walle, Doctor of Medicine
Contact
WALLE@recerca.clinic.cat
0034932275400

Oversight

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

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