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TerminatedNCT06716853TEM-GUUpdated Feb 9, 2026

A Clinical Gene Therapy Study With Hematopoietic Stem Cells for the Treatment, With Single Dose of Temferon, of Patients Suffering From Metastatic Renal Cell Carcinoma

A Phase 1/2 interventional study of Temferon and Pembrolizumab in Clear Cell RCC, sponsored by Genenta Science. Terminated at 1 site in Italy. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-02-09.

Sponsored by Genenta Science · Phase 1/2, Interventional, and Treatment

Why this study was terminated
Persistent challenges have been encountered in patient recruitment, difficulty in identifying a sufficient number of eligible subjects. The decision to terminate the study was not based on any safety concerns. Benefit-risk profile of IP unchanged.
Phase
Phase 1/2
Study type
Interventional
Enrollment
10
Allocation
Non-randomized
Ages
18 Years to 70 Years
Sex
All
01

Study summary

This is an open label, single-centre phase 1/2 study involving a single dose of Temferon, an investigational Advanced Therapy Medicinal Product (ATMP), to treat patients with metastatic clear cell renal cell carcinoma (RCC) with evidence of disease progression following at least two lines of standard of care (SoC) treatments.

Read the detailed description

During Part A (Phase 1) of the study, Temferon will be administered to up to 12 patients, who are going to be split into two cohorts according to immune checkpoint inhibitor -ICI- therapy received in the six months prior to entry into the study, with a histologically confirmed diagnosis of metastatic RCC and evidence of disease progression following at least two lines of SoC treatments.

At D+30 after Temferon, patients will start to receive pembrolizumab providing they have not received ICI in the 6 months prior to entry into the study. Patients allocated to pembrolizumab will receive pembrolizumab 400mg IV every 6 weeks commencing at D+30.

In the event that a patient has received ICI in the 6 months prior to study entry, they will be allocated to the cabozantinib arm. Patients allocated to cabozantinib, will initiate treatment with 40mg QD once PD occurs as assessed at D+30 or at subsequent visits.

02

Conditions studied

  • Clear Cell RCC

Keywords

  • metastatic renal cell carcinoma
  • Temferon
  • Gene
  • Solid tumor
  • Immunotherapy
03

In context

Carcinoma, Renal Cell

1,965 studies on the registry are indexed under Carcinoma, Renal Cell; 378 are open to participants now.

This study's enrollment of 10 is below the median of 42 across 1,480 interventional studies indexed under Carcinoma, Renal Cell.

Browse Carcinoma, Renal Cell studies →

Lead sponsor

Genenta Science is the lead sponsor of 3 studies on the registry; none are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patient aged between 18 - 70 years old
  • Women of childbearing potential must have a negative pregnancy test at screening and agree to use two distinct acceptable methods of contraception (which may include partner contraception) for the duration of the study
  • Men with partners of childbearing potential must be willing to use acceptable barrier contraceptive method during the trial or have undergone a vasectomy at least 6 months prior to study entry and confirmed by semen analysis
  • Adequate cardiac, renal, hepatic, pulmonary, and hematologic function
  • Patient able and willing to provide written informed consent and comply with study protocol and procedures
  • Histologically confirmed diagnosis of unresectable, locally advanced/metastatic RCC with clear cell component, with or without sarcomatoid features
  • Presence of a disease burden sufficiently large to permit biopsy
  • Disease progression following approved standard of care treatments for metastatic disease
  • ECOG PS 0-1
  • Measurable disease at physical examination or at imaging assessment according to RECIST 1.1 criteria

Exclusion criteria

Exclusion Criteria:

  • Use of investigational agents or procedures in the 4 weeks prior to study enrolment (6 weeks for long-acting agents) or receipt of an experimental gene therapy product in the past 2 years
  • History of current evidence of neuropsychiatric illness
  • History of severe cardiovascular disease
  • Evidence of haematological neoplasm
  • Active alcohol or substance abuse within 6 months of the study
  • Current pregnancy or lactation
  • Expected to undergo a surgical intervention during the first 3 months of the study
  • Known bleeding diathesis or history of abnormal/severe bleeding or any other known coagulation abnormalities that would contraindication a tissue biopsy, active treatment with anticoagulants.
  • New CNS or rapidly growing metastases or carcinomatous meningitis
  • Presence of hepatic metastases
  • Previous allogenic bone marrow, renal, liver transplant
  • Prior use of immunosuppressives in the previous 4 weeks prior to enrolment
  • Clinically relevant active viral, bacterial or fungal infection
  • Active autoimmune disease requiring disease modifying treatment.
05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
10 participants (actual)

Study arms

  • Experimental
    Pembrolizumab cohort

    At D+30 after Temferon, patients will start to receive pembrolizumab providing they have not received ICI in the 6 months prior to entry into the study. Patients allocated to pembrolizumab will receive pembrolizumab 400mg IV every 6 weeks commencing at D+30.

    Genetic: Temferon · Biological: Pembrolizumab

  • Experimental
    Cabozantinib cohort

    At D+30 after Temferon, in the event that a patient has received ICI in the 6 months prior to study entry and in case PD occurs (as assessed at D+30 or at subsequent visits), they will be receiving cabozantinib. Patients allocated to cabozantinib cohort will initiate treatment with 40mg QD

    Genetic: Temferon · Drug: Cabozantinib

Interventions

  • GeneticTemferon

    Autologous CD34+-enriched hematopoietic progenitor cells exposed in vitro to specific lentiviral vector encoding for the human interferon-alpha 2 gene. Its expression is tightly controlled by the human TIE2 enhancer/promoter sequence and by a post-transcriptional regulation layer represented by target miRNA sequences. This enables suppression of interferon-alpha2 expression in HSPCs, thereby further increasing the specificity of the delivery strategy for their Tie2 expressing myeloid cell progeny.

  • BiologicalPembrolizumab

    Pembrolizumab 400mg IV every 6 weeks commencing at D+30

  • DrugCabozantinib

    40mg QD once PD occurs as assessed at D+30 or at subsequent visits

06

What researchers measure

Primary outcomes

  1. Tolerability and safety of conditioning and Temferon, over the first 90 days following administration, as determined by the incidence of adverse events

    To assess tolerability and safety of conditioning and Temferon over the first 90 days following Temferon administration, as evaluated by the incidence of \>=CTCAE Grade 2 adverse events.

    Time frame: First 90 days

  2. Biological activity of Temferon, over the first 90 days following administration, as determined by the presence of Temferon-derived progeny in the tumor (IFN gene signature)

    To assess the biological activity of Temferon in the tumor of patients with metastatic renal cell carcinoma, over the first 90 days following Temferon administration, as determined by the change in IFN (interferon) gene signature in the tumor

    Time frame: First 90 days

Secondary outcomes

  1. Long term tolerability and safety of Temferon as determined by the incidence of adverse events up to 1 year following Temferon administration according to CTCAE v5.0 criteria

    Time frame: 1 year following Temferon administration

  2. Incidence, severity and duration of adverse events of special interest as indicated on the study protocol

    Time frame: Through study completion, an average of 1 year

  3. Proportion of patients achieving hematological recovery by Day +30

    Time frame: Day 30

  4. Overall response rate per RECIST version 1.1

    Defined as the proportion of patients who achieved a complete or partial response as their best overall response

    Time frame: RECIST criteria used at Screening, Baseline, Day +72, Day +120, Day +180, Day +210, Day +270, Day +360 or at any time disease progression or a secondary malignancy is suspected

  5. Disease control rate following Temferon infusion

    Time frame: Through study completion, an average of 1 year

07

Study locations

1 site
  • Ospedale San Raffaele
    Milan, Italy 20132, Italy
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 9, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06716853
Lead sponsor
Genenta Science
Collaborators
Alira Health, Arithmos srl, Ospedale San Raffaele
Responsible party
Sponsor
First posted
Dec 4, 2024
Start date
Oct 22, 2024
Primary completion
Jan 23, 2026
Completion
Jan 23, 2026
Last update
Feb 9, 2026

Oversight

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

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This study is terminated, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.

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