ClinicalTrials.gg
RecruitingNCT06545955ABLE-22Updated Oct 30, 2026

A Trial to Evaluate Intravesical Nadofaragene Firadenovec Alone or in Combination With Chemotherapy or Immunotherapy in Participants With High-grade BCG Unresponsive Non-muscle Invasive Bladder Cancer

A Phase 3 interventional study of Nadofaragene Firadenovec and Gemcitabine in Non-muscle Invasive Bladder Cancer With Carcinoma in Situ, sponsored by Ferring Pharmaceuticals. Recruiting at 81 sites in 8 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-30.

Sponsored by Ferring Pharmaceuticals · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Started Oct 2024; still recruiting 2 years 1 month later.
Updated Oct 30, 2026First site in Denmark5 sites addedGo to Updates ↓
Phase
Phase 3
Study type
Interventional
Enrollment
250
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The pivotal phase 3 trial (rAd-IFN-CS 003) evaluating the efficacy of nadofaragene firadenovec showed that 55 (53.4%) of 103 subjects with CIS ± high-grade Ta/T1 achieved a complete response (CR) at 3 months. In this trial, the safety and efficacy of intravesical instillation of nadofaragene firadenovec alone or in combination with chemotherapy or immunotherapy will be evaluated in participants with NMIBC CIS (± high-grade Ta/T1).

02

Conditions studied

  • Non-muscle Invasive Bladder Cancer With Carcinoma in Situ
03

In context

Carcinoma in Situ

78 studies on the registry are indexed under Carcinoma in Situ; 22 are open to participants now.

This study's planned enrollment of 250 is above the median of 80 across 62 interventional studies indexed under Carcinoma in Situ.

Browse Carcinoma in Situ studies →

Lead sponsor

Ferring Pharmaceuticals is the lead sponsor of 249 studies on the registry; 4 are open to participants now.

Of its 15 completed or terminated interventional studies of FDA-regulated products, 14 (93%) have results posted.

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

  • Diagnosed, as documented, with carcinoma in situ (CIS) ±Ta/T1 high-grade disease.

    • For T1 disease should contain muscle fibres.
  • Unresponsive to ≥2 courses of Bacillus Calmette-Guerin (BCG) therapy within the last 12 months. BCG-unresponsive refers to participants with high-grade non-muscle invasive bladder cancer (NMIBC) who are unlikely to benefit from and who will not be receiving further intravesical BCG. The term "BCG-Unresponsive" includes participants who did not respond to BCG treatment and have a persistent high-grade recurrence within 12 months after BCG was initiated, and those who despite an initial complete response to BCG, relapse with CIS within 12 months of their last intravesical treatment with BCG or relapse with high-grade Ta/T1 NMIBC within 6 months of their last intravesical treatment with BCG. The following criteria define the participants who may be included in the trial:

    • Have received at least 2 courses of BCG within a 12 month period - defined as at least 5 of 6 induction BCG instillations and at least 2 of 3 instillations of maintenance BCG, or at least 2 of 6 instillations of a second induction course, where maintenance BCG is not given.

      o Exception: those who have T1 high-grade disease at 1st evaluation after induction BCG alone (at least 5 of 6 doses) may qualify in the absence of disease progression

    • At the time of tumour recurrence, participants with CIS alone or high-grade Ta/T1 with CIS should be within 12 months of last exposure to BCG
    • No maximum limit to the amount of BCG administered
    • All visible papillary tumours must be resected and those with persistent T1 disease on transurethral resection of bladder tumour (TURBT) should undergo an additional re-TURBT within 14 to 70 days prior to beginning trial treatment. Obvious areas of CIS should also be fulgurated
  • (ECOG) status ≤2
  • Aged ≥18 years at the time of consent
  • Available for the whole duration of the trial
  • >2 years, in the opinion of the investigator
  • Absence of concomitant upper tract urothelial carcinoma or urothelial carcinoma within the prostatic urethra. Freedom from upper tract disease (if clinically indicated) as indicated by no evidence of upper tract tumour by either intravenous pyelogram, retrograde pyelogram, computed tomography (CT) scan with or without urogram, or magnetic resonance imaging (MRI) with or without urogram performed within 6 months of enrolment. Absence of locally advanced disease as assessed by CT scan or MRI
  • Participants who elect not to undergo cystectomy
  • Participants with prostate cancer on active surveillance at low risk for progression are permitted to be included into the trial at the discretion of the investigator
  • Females of must have a negative highly sensitive urine or serum pregnancy test upon entry into this trial and be willing to use highly effective during treatment with the medicinal product and for 6 months following the last dose. Otherwise, female participants must be (no menstrual period for a minimum of 12 months, as confirmed by follicle-stimulating hormone levels) or surgically sterile
  • Male subjects must be willing to use a male condom and effective contraception during sex throughout the treatment period and for 3 months following the last dose.

Exclusion criteria

Exclusion Criteria:

  • Current or previous evidence of muscle-invasive (muscularis propria) or disease presented at the screening visit. Examples of increased risk of muscle-invasive disease include but are not limited to:

    • Presence of lymphovascular invasion and / or micropapillary, sarcomatoid, plasmacytoid and / or neuroendocrine disease as shown in the histology of the sample
    • Participants with CIS+T1 disease accompanied by the presence of hydronephrosis secondary to the primary tumour
  • Current systemic therapy for bladder cancer other than medicinal products used in randomisation arm
  • Current or prior investigational treatment for BCG-unresponsive NMIBC or any other investigational drug (drug used in a clinical trial, i.e drug used in a Ferring sponsored non interventional study does not apply) within 1 month prior to screening
  • Current or prior pelvic external beam radiotherapy within 2 years of screening
  • Prior treatment with nadofaragene firadenovec at any time
  • Prior systemic therapy for bladder cancer at any time
  • Prior intravesical chemotherapy for the treatment of BCG-unresponsive NMIBC
Terms in these criteria, in plain language(8)

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.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Reproductive potential

Able to have children. For women this usually means from the first period until menopause, unless permanently unable to through surgery; for men, unless permanently sterile. Read who the line is about — participants, women, men, or their partners.

Criteria about it usually ask 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.

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.

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).

Metastases

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

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
250 participants (estimated)

Study arms

  • Experimental
    Nadofaragene firadenovec

    Nadofaragene firadenovec (intravesical)

    Drug: Nadofaragene Firadenovec

  • Experimental
    Nadofaragene firadenovec + gemcitabine & docetaxel

    Nadofaragene firadenovec (intravesical), and sequential gemcitabine and docetaxel (intravesical)

    Drug: Nadofaragene Firadenovec · Drug: Gemcitabine · Drug: Docetaxel

  • Experimental
    Nadofaragene firadenovec + Pembrolizumab

    Nadofaragene firadenovec (intravesical), and pembrolizumab (IV infusion). This arm will be closed and patients will no longer be randomised to this arm. This modification will convert ABLE-22 into a two-arm study with 1:1 randomisation between nadofaragene alone and nadofaragene + gemcitabine/docetaxel, to now N=100 in each of the 2 remaining arms. Participants already enrolled in this arm will not be impacted.

    Drug: Nadofaragene Firadenovec · Drug: Pembrolizumab

Interventions

  • vector-based gene therapy for NMIBC treatment to potentiate durable therapeutic responses by interferon (IFN) alfa-2b (IFN-α2b) amplification. It is a non-replicating recombinant adenovirus serotype 5 vector containing a transgene encoding the human IFN-α2b gene.

    Also known as: ADSTILADRIN

  • Intravesical Gemcitabine chemotherapy, used in combination with Docetaxel.

  • Intravesical Docetaxel chemotherapy, used in combination with Gemcitabine.

  • Pembrolizumab is an FDA approved immune checkpoint inhibitor which restores the anti-tumour immune response by blocking the programmed cell death protein 1 (PD-1). Pembrolizumab is administered via intravenous (IV) infusion.

06

What researchers measure

Primary outcomes

  1. Complete response

    Complete response (CR) at any time from first treatment (defined as absence of high-grade (HG) recurrence).

    Time frame: up to 6 months

Secondary outcomes

  1. Complete response at month 3

    Complete response 3 months from first treatment

    Time frame: 3 months

  2. Complete response at month 6

    Complete response 6 months from first treatment

    Time frame: 6 months

  3. Durability of complete response

    Durability of complete response (defined as time from achieved CR to HG recurrence, progression or death due to any cause).

    Time frame: Up to 24 months

  4. Muscle-invasive progression of disease

    Muscle-invasive progression of disease (defined as time from first treatment to first evidence of muscle-invasive disease or death)

    Time frame: up to 36 months

  5. Cystectomy-free survival

    Cystectomy-free survival (defined as time from first treatment to either cystectomy or death due to any cause)

    Time frame: up to 36 months

  6. Pathological staging

    Pathological staging (tumor, node, metastasis staging system) in participants at time of cystectomy

    Time frame: up to 36 months

  7. Overall survival

    Overall survival (defined as time from first treatment to death due to any cause)

    Time frame: up to 36 months

  8. Evidence of malignant lesions of the upper tract and/or prostatic urethra

    Evidence of malignant lesions of the upper tract and/or prostatic urethra (defined as time from first treatment to first evidence of malignant lesions).

    Time frame: up to 24 months

  9. Adverse events

    Adverse events collected for nadofaragene firadenovec in combination with chemotherapy (gemcitabine and docetaxel) or immunotherapy (pembrolizumab)

    Time frame: up to 36 months

07

Study locations

81 of 81 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

2 registry updates since Sep 25, 2026
Sites
5 sites added — first site in Denmark
Show 5 added (2 South Korea, 1 United States, 1 Canada, 1 Denmark)
  • The Urology Group P.C. · Southhaven, United States
  • Research St. Joseph's- Hamilton/St. Joseph's Healthcare Hamilton · Hamilton, Canada
  • Aarhus University Hospital · Aarhus, Denmark
  • Chonnam National University Hwasun Hospital (CNUHH) Organisa · Hwasun, South Korea
  • Severance Hospital, Yonsei University Health System · Seoul, South Korea
across 2 updates, Sep 25, 2026 – Oct 30, 2026
Show all 2 updates
  1. Oct 30, 2026
    1 site added
    Show site
    • Severance Hospital, Yonsei University Health System · Seoul, South Korea
  2. Sep 25, 2026
    4 sites added — first site in Denmark
    Show 4 added (1 United States, 1 Canada, 1 Denmark, 1 South Korea)
    • The Urology Group P.C. · Southhaven, United States
    • Research St. Joseph's- Hamilton/St. Joseph's Healthcare Hamilton · Hamilton, Canada
    • Aarhus University Hospital · Aarhus, Denmark
    • Chonnam National University Hwasun Hospital (CNUHH) Organisa · Hwasun, South Korea

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT06545955
Responsible party
Sponsor
First posted
Aug 9, 2024
Start date
Oct 1, 2024
Primary completion
Jun 30, 2028 (estimated)
Completion
Dec 31, 2030 (estimated)
Last update
Oct 30, 2026

Study contacts

Ferring Pharmaceuticals
Contact
disclosure@ferring.com
833-548-1402 (US/Canada)
Ferring Pharmaceuticals
Contact
disclosure@ferring.com
+1862-286-5200 (not US/Canada)
Global Clinical Compliance
study director · Ferring Pharmaceuticals

Oversight

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

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Studies of the drugs tested here: Nadofaragene firadenovec · Gemcitabine · Docetaxel · Pembrolizumab

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