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Intravesical Gemcitabine and Docetaxel for BCG naïve Non-muscle Invasive Bladder Cancer

A Phase II Trial for the Use of Intravesical Gemcitabine and Docetaxel (GEMDOCE) in the Treatment of BCG naïve Non-muscle Invasive Urothelial Carcinoma of the Bladder

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04386746
Acronym
GEMDOCE
Enrollment
27
Registered
2020-05-13
Start date
2020-07-29
Completion date
2026-11-30
Last updated
2025-11-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bladder Cancer, Urothelial Carcinoma Bladder

Keywords

NMIBC

Brief summary

A single-arm, two-stage, open-label, phase 2 study investigating the safety and efficacy of intravesical gemcitabine/docetaxel for bacillus Calmette-Guerin (BCG)-naïve patients with non-muscle invasive bladder cancer (NMIBC).

Detailed description

All participants will receive an induction course of gemcitabine/docetaxel instillations (administered once a week for six consecutive weeks) followed by monthly maintenance instillations if initial efficacy is seen. In addition to providing initial efficacy data, this study will provide safety and long-term efficacy data on the combination regimen studied. A tolerable safety profile and demonstrated efficacy would support a potential, randomized phase 3 trial comparing the experimental combination therapy and standard of care intravesical BCG therapy.

Interventions

DRUGGemcitabine

1g gemcitabine in 50ml sterile water; instilled once weekly for 6 weeks and then once monthly for ≤ 21 months.

DRUGDocetaxel

37.5mg docetaxel in 50ml normal saline solution (NSS); instilled once weekly for 6 weeks and then once monthly for ≤ 21 months.

Sponsors

Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Histologically confirmed intermediate or high-risk non-muscle invasive urothelial carcinoma of the bladder (Ta, T1, or Tis stage) on TURBT obtained within 90 days of registration defined according to modified EORTC risk criteria summarized as follows: 1. Low-risk tumors: Initial or recurrent tumor \> 12 months after resection with all of the following: * Solitary tumor * Low-grade * \< 3 cm * No carcinoma in situ (CIS) 2. Intermediate-risk tumors: All tumors not defined in the two adjacent categories (between the category of low- and high-risk) 3. High-risk tumors: Any of the following: * T1 tumor * High-grade * CIS * Multiple and recurrent and large (\> 3 cm) Ta low-grade tumors (all conditions must be met for this point of Ta low-grade tumors) 4. Note #1: Low-risk tumors as defined above are not eligible 5. Note #2: Mixed histologies are permitted, provided a component of urothelial carcinoma is present 6. Note #3: All patients with high-grade T1 (HGT1) should undergo a restaging TURBT 2. Eastern Cooperative Oncology Group (ECOG) (WHO) performance status 0, 1, or 2 3. Age ≥ 18 years old at time of consent 4. Evidence of post-menopausal status or negative urinary or serum pregnancy test or female pre-menopausal patients is required. Women will be considered post-menopausal if they have been amenorrheic for 12 months without an alternative medical cause. The following age-specific requirements apply: 1. Women \<50 years of age would be considered post-menopausal if they have been amenorrheic for 12 months or more following cessation of exogenous hormonal treatments and if they have luteinizing hormone and follicle-stimulating hormone levels in the post-menopausal range for the institution or underwent surgical sterilization (bilateral oophorectomy or hysterectomy). 2. Women ≥50 years of age would be considered post-menopausal if they have been amenorrheic for 12 months or more following cessation of all exogenous hormonal treatments, had radiation-induced menopause with last menses \>1 year ago, had chemotherapy-induced menopause with last menses \>1 year ago, or underwent surgical sterilization (bilateral oophorectomy, bilateral salpingectomy or hysterectomy). 5. Subjects who give a written informed consent obtained according to local guidelines.

Exclusion criteria

1. Subjects with muscle-invasive (i.e. T2, T3, T4), locally advanced unresectable, or metastatic urothelial carcinoma as assessed on baseline radiographic imaging obtained within 90 days prior to study registration. The required radiographic imaging includes: 1. Abdomen/Pelvis - CT scan 2. Chest - chest x-ray or CT scan 2. Subjects with concurrent upper urinary tract (i.e. ureter, renal pelvis) urothelial carcinoma of any stage. a. Note: Subjects with history of non-invasive (Ta, Tis) upper tract urothelial carcinoma that has been definitively treated with at least one post-treatment disease assessment (i.e. cytology, biopsy, imaging) that demonstrates no evidence of residual disease are eligible. 3. Subjects with another active second malignancy with an estimated overall survival from the second malignancy of \< 12 months. Subjects with another second active malignancy that are deemed to have an estimated overall survival of \>12 months are eligible. 4. Subjects who have received the last administration of an anti-cancer therapy including chemotherapy, immunotherapy, and monoclonal antibodies ≤ 4 weeks prior to starting study drug, or who have not recovered from the side effects of such therapy. 5. Subjects who have had radiotherapy ≤ 4 weeks prior to starting study drug, or who have not recovered from radiotherapy toxicities. 6. Pregnant or breast-feeding women. 7. Subjects unwilling or unable to comply with the protocol. 8. Patients with prior systemic gemcitabine or docetaxel use for a non-bladder malignancy may enroll and receive treatment.

Design outcomes

Primary

MeasureTime frameDescription
3-Month Complete Response Rate3 monthsNumber of patients with no evidence of recurrent high grade urothelial carcinoma of the bladder of any stage as assessed by cystoscopy with biopsy and urine cytology.

Secondary

MeasureTime frameDescription
24-Month Relapse-Free Survival Rate24 monthsProportion of patients alive and with no evidence of recurrent high grade urothelial carcinoma of the bladder of any stage.
Safety Profile as Assessed by Proportion of Adverse Events by TypeUp to 24 monthsProportion of adverse events by type, as defined by Common Terminology Criteria for Adverse Events version 5.0 (CTCAE v5.0).
Safety Profile as Assessed by Proportion of Adverse Events by GradeUp to 24 monthsProportion of adverse events by grade, as defined by Common Terminology Criteria for Adverse Events version 5.0 (CTCAE v5.0).
Number of Gene Alterations as Measured by RNA-seq3 monthsNumber of gene alterations as measured by RNA-seq. Compare results to 3-month Complete Response rate using statistical methods.
Type of Gene Alterations as Measured by RNA-seq3 monthsType of gene alterations as measured by RNA-seq. Compare results to 3-month Complete Response rate using statistical methods.
Number of DNA Mutations as Measured by Whole Transcriptome3 monthsNumber of DNA mutations as measured by whole transcriptome. Compare results to 3-month Complete Response rate.
12-Month Relapse-Free Survival Rate12 monthsProportion of patients alive and with no evidence of recurrent high grade urothelial carcinoma of the bladder of any stage.
Number of DNA Mutations as Measured by Panel DNA Sequencing3 monthsNumber of DNA mutations as measured by panel DNA sequencing. Compare results to 3-month Complete Response rate.
Type of DNA Mutations as Measured by Whole Transcriptome3 monthsType of DNA mutations as measured by whole transcriptome. Compare results to 3-month Complete Response rate.
Type of DNA Mutations as Measured by Whole Exome3 monthsType of DNA mutations as measured by whole exome. Compare results to 3-month Complete Response rate.
Type of DNA Mutations as Measured by Panel DNA Sequencing3 monthsType of DNA mutations as measured by panel DNA sequencing. Compare results to 3-month Complete Response rate.
Numbers of T-cell Subpopulations3 monthsNumbers of t-cell subpopulations utilizing immunohistochemical (IHC) staining and flow cytometry. Compare results to 3-month Complete Response rate using statistical analysis.
Ratio of T-cell Subpopulations3 monthsRatio of t-cell subpopulations utilizing IHC staining and flow cytometry. Compare results to 3-month Complete Response rate using statistical analysis.
Number of DNA Mutations as Measured by Whole Exome3 monthsNumber of DNA mutations as measured by whole exome. Compare results to 3-month Complete Response rate.

Countries

United States

Participant flow

Pre-assignment details

27 subjects signed consent to be screened for eligibility. * 1 subject signed consent, but did not meet the eligibility criteria to start the study (screen failure) * 26 subjects received study treatment (1 subject withdrew consent after first dose of study therapy)

Participants by arm

ArmCount
Intravesical Gemcitabine/Docetaxel
Gemcitabine: 1g gemcitabine in 50ml sterile water; instilled once weekly for 6 weeks and then once monthly for ≤ 21 months. Docetaxel: 37.5mg docetaxel in 50ml normal saline solution (NSS); instilled once weekly for 6 weeks and then once monthly for ≤ 21 months.
26
Total26

Baseline characteristics

CharacteristicIntravesical Gemcitabine/Docetaxel
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
16 Participants
Age, Categorical
Between 18 and 65 years
10 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
26 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Pre-trial pathologic stage
CIS alone
3 Participants
Pre-trial pathologic stage
HGT1 with CIS
7 Participants
Pre-trial pathologic stage
HGT1 without CIS
7 Participants
Pre-trial pathologic stage
HgTa
9 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
2 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
24 Participants
Sex: Female, Male
Female
5 Participants
Sex: Female, Male
Male
21 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 26
other
Total, other adverse events
23 / 26
serious
Total, serious adverse events
2 / 26

Outcome results

Primary

3-Month Complete Response Rate

Number of patients with no evidence of recurrent high grade urothelial carcinoma of the bladder of any stage as assessed by cystoscopy with biopsy and urine cytology.

Time frame: 3 months

Population: 1 patient withdrew consent and data was not collected.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Intravesical Gemcitabine/Docetaxel3-Month Complete Response Rate25 Participants
Secondary

12-Month Relapse-Free Survival Rate

Proportion of patients alive and with no evidence of recurrent high grade urothelial carcinoma of the bladder of any stage.

Time frame: 12 months

Secondary

24-Month Relapse-Free Survival Rate

Proportion of patients alive and with no evidence of recurrent high grade urothelial carcinoma of the bladder of any stage.

Time frame: 24 months

Secondary

Number of DNA Mutations as Measured by Panel DNA Sequencing

Number of DNA mutations as measured by panel DNA sequencing. Compare results to 12-month Relapse Free Survival rate using statistical analysis.

Time frame: 12 months

Secondary

Number of DNA Mutations as Measured by Panel DNA Sequencing

Number of DNA mutations as measured by panel DNA sequencing. Compare results to 3-month Complete Response rate.

Time frame: 3 months

Secondary

Number of DNA Mutations as Measured by Whole Exome

Number of DNA mutations as measured by whole exome. Compare results to 3-month Complete Response rate.

Time frame: 3 months

Secondary

Number of DNA Mutations as Measured by Whole Exome

Number of DNA mutations as measured by whole exome. Compare results to 12-month Relapse Free Survival rate using statistical analysis.

Time frame: 12 months

Secondary

Number of DNA Mutations as Measured by Whole Transcriptome

Number of DNA mutations as measured by whole transcriptome. Compare results to 3-month Complete Response rate.

Time frame: 3 months

Secondary

Number of DNA Mutations as Measured by Whole Transcriptome

Number of DNA mutations as measured by whole transcriptome. Compare results to 12-month Relapse Free Survival rate using statistical analysis.

Time frame: 12 months

Secondary

Number of Gene Alterations as Measured by RNA-seq

Number of gene alterations as measured by RNA-seq. Compare results to 3-month Complete Response rate using statistical methods.

Time frame: 3 months

Secondary

Number of Gene Alterations as Measured by RNA-seq

Number of gene alterations as measured by RNA-seq. Compare results to 12-month Relapse-Free Survival rate using statistical methods.

Time frame: 12 months

Secondary

Numbers of T-cell Subpopulations

Numbers of t-cell subpopulations utilizing IHC staining and flow cytometry. Compare results to 12-month Relapse-Free Survival rate using statistical analysis.

Time frame: 12-months

Secondary

Numbers of T-cell Subpopulations

Numbers of t-cell subpopulations utilizing immunohistochemical (IHC) staining and flow cytometry. Compare results to 3-month Complete Response rate using statistical analysis.

Time frame: 3 months

Secondary

Ratio of T-cell Subpopulations

Ratio of t-cell subpopulations utilizing IHC staining and flow cytometry. Compare results to 3-month Complete Response rate using statistical analysis.

Time frame: 3 months

Secondary

Ratio of T-cell Subpopulations

Ratio of t-cell subpopulations utilizing IHC staining and flow cytometry. Compare results to 12-month Relapse-Free Survival rate using statistical analysis.

Time frame: 12-months

Secondary

Safety Profile as Assessed by Proportion of Adverse Events by Grade

Proportion of adverse events by grade, as defined by Common Terminology Criteria for Adverse Events version 5.0 (CTCAE v5.0).

Time frame: Up to 24 months

Secondary

Safety Profile as Assessed by Proportion of Adverse Events by Type

Proportion of adverse events by type, as defined by Common Terminology Criteria for Adverse Events version 5.0 (CTCAE v5.0).

Time frame: Up to 24 months

Secondary

Type of DNA Mutations as Measured by Panel DNA Sequencing

Type of DNA mutations as measured by panel DNA sequencing. Compare results to 12-month Relapse Free Survival rate using statistical analysis.

Time frame: 12 months

Secondary

Type of DNA Mutations as Measured by Panel DNA Sequencing

Type of DNA mutations as measured by panel DNA sequencing. Compare results to 3-month Complete Response rate.

Time frame: 3 months

Secondary

Type of DNA Mutations as Measured by Whole Exome

Type of DNA mutations as measured by whole exome. Compare results to 12-month Relapse Free Survival rate using statistical analysis.

Time frame: 12 months

Secondary

Type of DNA Mutations as Measured by Whole Exome

Type of DNA mutations as measured by whole exome. Compare results to 3-month Complete Response rate.

Time frame: 3 months

Secondary

Type of DNA Mutations as Measured by Whole Transcriptome

Type of DNA mutations as measured by whole transcriptome. Compare results to 12-month Relapse Free Survival rate using statistical analysis.

Time frame: 12 months

Secondary

Type of DNA Mutations as Measured by Whole Transcriptome

Type of DNA mutations as measured by whole transcriptome. Compare results to 3-month Complete Response rate.

Time frame: 3 months

Secondary

Type of Gene Alterations as Measured by RNA-seq

Type of gene alterations as measured by RNA-seq. Compare results to 12-month Relapse-Free Survival rate using statistical methods.

Time frame: 12 months

Secondary

Type of Gene Alterations as Measured by RNA-seq

Type of gene alterations as measured by RNA-seq. Compare results to 3-month Complete Response rate using statistical methods.

Time frame: 3 months

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026