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An Efficacy and Safety Study of Erdafitinib (JNJ-42756493) in Participants With Urothelial Cancer

A Phase 2, Two-arm Multicenter, Open-Label Study to Determine the Efficacy and the Safety of Two Different Dose Regimens of a Pan-FGFR Tyrosine Kinase Inhibitor JNJ-42756493 in Subjects With Metastatic or Surgically Unresectable Urothelial Cancer With FGFR Genomic Alterations

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02365597
Enrollment
239
Registered
2015-02-19
Start date
2015-04-22
Completion date
2027-03-31
Last updated
2026-08-28

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

Conditions

Urothelial Cancer

Keywords

Urothelial Cancer, JNJ-42756493, Erdafitinib, Tyrosine Kinase Inhibitor

Brief summary

The purpose of this study is to evaluate the objective response rate (complete response \[CR\]+ partial response \[PR\]) of the selected dose regimen in participants with metastatic or surgically unresectable urothelial cancers that harbor specific FGFR genomic alterations.

Detailed description

This is a multicenter, open-label study (participants will know the identity of study drugs administered) to evaluate the efficacy and safety of erdafitinib in participants with urothelial cancer. The study comprises a 30-days Screening Phase, a Treatment Phase comprised of 28-day treatment cycles that will continue until disease progression or unacceptable toxicity occurs in a long-term extension (LTE) phase, and a post-treatment Follow-up Phase that will extend from the End-of-Treatment Visit until the participant has died, withdraws consent, is lost to follow-up, or the end of the study, whichever comes first. The end of study is defined as the date when all participants have completed the study treatment (Regimens 1 to 3) and all participants enrolled under the drug-drug interaction (DDI) substudy are no longer receiving treatment with erdafitinib. The purpose of DDI sub-study is to evaluate the interaction of repeated doses of erdafitinib with a sensitive cytochrome 450 (CYP) 3A substrate (midazolam) and with an organic cation transporter 2 (OCT2) probe substrate (metformin). Safety will be monitored throughout the study.

Interventions

DRUGErdafitinib

8 mg orally once daily for 28 days on a 28 day cycle.

DRUGMidazolam

Participants who enrolled in DDI substudy will receive pretreatment with single dose of midazolam on Day -2 and single dose of midazolam on Day 13.

DRUGMetformin

Participants who enrolled in DDI substudy will receive pretreatment with single dose of metformin on Day -1 and single dose of metformin on Day 14.

Sponsors

Janssen Research & Development, LLC
Lead SponsorINDUSTRY

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

* Must have histologic demonstration of metastatic or surgically unresectable urothelial cancer. Minor components of variant histology such as glandular or squamous differentiation, or evolution to more aggressive phenotypes such as sarcomatoid or micropapillary change are acceptable * Must have measurable disease according to the Response Evaluation Criteria in Solid Tumors (RECIST, version 1.1) at baseline * Must have an Eastern Cooperative Oncology Group (ECOG) performance status score 0, 1, or 2 * Must have adequate bone marrow, liver, and renal function as described in protocol * Negative pregnancy test (urine or serum beta human chorionic gonadotropin \[b-hCG\]) at Screening for women of child bearing potential who are sexually active * Must have shown disease progression according to RECIST, version 1.1, following prior chemotherapy for metastatic or surgically unresectable urothelial cancer. Participants who received neoadjuvant or adjuvant chemotherapy and showed disease recurrence or progression according to RECIST, version 1.1, within 12 months of the last dose are considered to have received chemotherapy in the metastatic setting. These participants will be referred to as chemo-refractory participants. (Participants who have shown disease progression according to RECIST, version 1.1 following prior treatment with anti-Programmed death-ligand 1 (anti PDL1/PD1) antibodies are also eligible) For DDI substudy * Disease progression following prior chemotherapy for metastatic or surgically unresectable urothelial cancer. Participants who received neoadjuvant or adjuvant chemotherapy and showed disease recurrence or progression within 12 months of the last dose are considered to have received chemotherapy in the metastatic setting

Exclusion criteria

* Received chemotherapy, targeted therapies, definitive radiotherapy, or treatment with an investigational anticancer agent within 2 weeks (in the case of nitrosoureas and mitomycin C, within 6 weeks; in the case of immunotherapy, within 4 weeks) before the first administration of study drug. Localized palliative radiation therapy (but should not include radiation to target lesions) and ongoing bisphosphonates and denosumab, are permitted * Has persistent phosphate level greater than upper limit of normal (ULN) during screening (within 14 days of treatment and prior to Cycle 1 Day 1) and despite medical management * Has a history of or current uncontrolled cardiovascular disease * Females who are pregnant, breast-feeding, or planning to become pregnant within 3 months after the last dose of study drug and males ho plan to father a child while enrolled in this study or within 5 months after the last dose of study drug * Has not recovered from reversible toxicity of prior anticancer therapy (except toxicities which are not clinically significant such as alopecia, skin discoloration, or Grade 1 neuropathy)

Design outcomes

Primary

MeasureTime frameDescription
Drug-Drug Interaction (DDI) Substudy: Time to Reach the Maximum Observed Plasma Concentration (Tmax) of Metformin Alone or in Combination With ErdafitinibCycle 1 Day -1 (predose) up to Day 14 post dose (each cycle length=28 days)Tmax is the time to reach maximum observed plasma concentration of metformin alone or in combination with erdafitinib
Main Study: Percentage of Participants With Best (Overall) Objective ResponseFrom Cycle 1 Day 1 up to 6 years 2 monthsPercentage of participants with best (overall) objective response were reported. Best objective response is defined as the best (overall) objective response a participants achieved during the study in the order of complete response (CR), partial response (PR), stable disease (SD), progressive disease (PD), where CR and PR were confirmed as per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. As per RECIST version 1.1, CR was defined as the disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must had reduction in the short axis to less than (\<) 10 millimeters (mm). PR was defined as at least a 30 percent (%) decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Responders are participants with BOR of CR or PR.
Drug-Drug Interaction (DDI) Substudy: Maximum Observed Plasma Concentration (Cmax) of Midazolam Alone or in Combination With ErdafitinibCycle 1 Day -2 (predose) up to Day 13 post doseCmax is the maximum observed plasma concentration of midazolam alone or in combination with erdafitinib.
Drug-Drug Interaction (DDI) Substudy: Maximum Observed Plasma Concentration (Cmax) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With ErdafitinibCycle 1 Day -2 (predose) up to Day 13 post dose (each cycle length=28 days)Cmax is the maximum observed plasma concentration of 1-OH-Midazolam (midazolam metabolite) alone or in combination with erdafitinib.
Drug-Drug Interaction (DDI) Substudy: Maximum Observed Plasma Concentration (Cmax) of Metformin Alone or in Combination With ErdafitinibCycle 1 Day -1 (predose) up to Day 14 post dose (each cycle length=28 days)Cmax is the maximum observed plasma concentration of metformin alone or in combination with erdafitinib
Drug-Drug Interaction (DDI) Substudy: Time to Reach the Maximum Observed Plasma Concentration (Tmax) of Midazolam Alone or in Combination With ErdafitinibCycle 1 Day -2 (predose) up to Day 13 post dose (each cycle length=28 days)Tmax is the time to reach the maximum observed plasma concentration of midazolam alone or in combination with erdafitinib.
Drug-Drug Interaction (DDI) Substudy: Time to Reach the Maximum Observed Plasma Concentration (Tmax) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With ErdafitinibCycle 1 Day -2 (predose) up to Day 13 post dose (each cycle length=28 days)Tmax is the time to reach the maximum observed plasma concentration of 1-OH-Midazolam alone or in combination with erdafitinib.
Drug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Time of the Last Measurable Concentration (AUC[0-last]) of Midazolam Alone or in Combination With ErdafitinibCycle 1 Day -2 (predose) up to Day 13 post dose (each cycle length=28 days)AUC(0-last) is the area under the plasma concentration versus time curve from time 0 to the time of the last measurable concentration of midazolam alone or in combination with erdafitinib.
Drug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Time of the Last Measurable Concentration (AUC[0-last]) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With ErdafitinibCycle 1 Day -2 (predose) up to Day 13 post dose (each cycle length=28 days)AUC(0-last) is the area under the plasma concentration versus time curve from time 0 to the time of the last measurable concentration of 1-OH-Midazolam alone or in combination with erdafitinib.
Drug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Time of the Last Measurable Concentration (AUC[0-last]) of Metformin Alone or in Combination With ErdafitinibCycle 1 Day -1 (predose) up to Day 14 post dose (each cycle length=28 days)AUC(0-last) is the area under the plasma concentration versus time curve from time 0 to the time of the last measurable concentration of metformin alone or in combination with erdafitinib.
Drug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Infinite Time (AUC[0-Infinity]) of Midazolam Alone or in Combination With ErdafitinibCycle 1 Day -2 (predose) up to Day 13 post dose (each cycle length=28 days)AUC(0-Infinity) is the area under the plasma concentration versus time curve from time 0 to the infinite time of midazolam alone or in combination with erdafitinib.
Drug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Infinite Time (AUC[0-Infinity]) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With ErdafitinibCycle 1 Day -2 (predose) up to Day 13 post dose (each cycle length=28 days)AUC(0-Infinity) is the area under the plasma concentration versus time curve from time 0 to the infinite time of 1-OH-Midazolam alone or in combination with erdafitinib.
Drug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Infinite Time (AUC[0-Infinity]) of Metformin Alone or in Combination With ErdafitinibCycle 1 Day -1 (predose) up to Day 14 post dose (each cycle length=28 days)AUC(0-Infinity) is the area under the plasma concentration versus time curve from time 0 to the infinite time of metformin alone or in combination with erdafitinib

Secondary

MeasureTime frameDescription
Main Study: Progression-free Survival (PFS)From screening up to 6 years 2 monthsProgression-free survival is defined as the duration from the date of the first dose of study drug until the date of first documented evidence of progressive disease (or relapse for participants who experience CR during the study) or death due to any cause, whichever occurs first, regardless of the use of subsequent anticancer therapy. As per RECIST version 1.1, CR was defined as the disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must had reduction in the short axis to less than (\<) 10 millimeters (mm). PR was defined as at least a 30 percent (%) decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.
Main Study: Duration of Response (DoR)From screening up to 6 years 2 monthsDOR is defined as the time (in months) from the date of first observation of response (PR or CR) to the date of the first observation of progression or date of death, whatever the cause based on the RECIST version 1.1. CR: disappearance of all target and non-target lesions. All pathological (whether target or non-target) must have a reduction in their short axis \<10 mm. PR: at least a 30% decrease in the SOD of target lesions, taking as reference the baseline sum diameters. PD was defined as at least 20% increase (including an absolute increase of at least 5 mm) in the SOD of target lesions, taking as reference the smallest sum and/or unequivocal progression of existing non-target lesions and/or appearance of 1 or more new lesions.
Main Study: Overall SurvivalFrom screening up to 6 years 2 monthsOverall survival is defined as the time from the date of first dose of study drug to the date of the participant's death from any cause.
Main Study: Percentage of Participants With Treatment-emergent Adverse Event (TEAEs)From Day 1 up to 6 years 2 monthsPercentage of participants with TEAEs were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. TEAEs are those events that occurred from first dose date through 30 days after last dose date, or day before subsequent anticancer therapy, whichever occurs first.
Main Study: Plasma Concentration of Erdafitinib at 2 Hours (C2h)Cycle 1 Days 1 and 21: Pre-dose up to 2 hours post-dose (each cycle length=28 days)C2h is the plasma concentration of erdafitinib at 2 hours.
Main Study: Plasma Concentration of Erdafitinib at 4 Hours (C4h)Cycle 1 Days 1 and 21: Pre-dose up to 4 hours post-dose (each cycle length=28 days)C4h is the plasma concentration of erdafitinib at 4 hours.

Countries

Austria, Belgium, France, Germany, India, Israel, Moldova, Romania, Russia, South Korea, Spain, Taiwan, Turkey (Türkiye), United Kingdom, United States

Contacts

STUDY_DIRECTORJanssen Research & Development, LLC Clinical Trial

Janssen Research & Development, LLC

Participant flow

Participants by arm

ArmCount
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mg
Participants received single dose of erdafitinib 10 mg tablet, orally, once daily, starting from Day 1 through Day 7 and from Day 15 through Day 21 and so on, that is 7-day on and off in each subsequent 28-day cycles starting from Cycle 1. Based on serum phosphate (PO4) levels, there was an option to up-titrate erdafitinib dose to 12 mg, orally, once daily starting from Cycle 2 Day 1 until disease progression, unacceptable toxicity, or any other reason for treatment discontinuation.
33
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mg
Participants received single dose of erdafitinib 6 mg tablet, orally, once daily, starting from Day 1 through Day 28 in each subsequent 28-day cycles starting from Cycle 1. Based on serum PO4 levels, there was an option to up-titrate erdafitinib dose to 8 mg, orally, once daily starting from Cycle 2 Day 1 until disease progression, unacceptable toxicity, or any other reason for treatment discontinuation.
78
Main Study: Regimen 3: Erdafitinib 8 mg/ 9 mg
Participants received single dose of erdafitinib 8 mg tablet, orally, once daily, starting from Day 1 through Day 28 in each subsequent 28-day cycles starting from Cycle 1. Based on serum PO4 levels, there was an option to up-titrate erdafitinib dose to 9 mg, orally, once daily starting from Cycle 1 Day 15 until disease progression, unacceptable toxicity, or any other reason for treatment discontinuation.
101
Drug-Drug Interaction (DDI) Sub-study: Midazolam 2.5 mg + Metformin 1000 mg + Erdafitinib 8/9 mg
Participants received pretreatment with single doses of midazolam 2.5 mg syrup orally on Day -2 and metformin 1000 mg tablet orally on Day -1 along with erdafitinib 8 mg tablet, orally, on 28-day cycles starting from Cycle 1 Day 1 to Day 15 (or up-titrated to 9 mg on Day 15 based on Day 14 serum PO4 levels) until disease progression, unacceptable toxicity, or any other reason for treatment discontinuation.
25
Total237

Baseline characteristics

CharacteristicMain Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgMain Study: Regimen 2: Erdafitinib 6 mg/ 8 mgMain Study: Regimen 3: Erdafitinib 8 mg/ 9 mgDrug-Drug Interaction (DDI) Sub-study: Midazolam 2.5 mg + Metformin 1000 mg + Erdafitinib 8/9 mgTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
22 Participants39 Participants62 Participants14 Participants137 Participants
Age, Categorical
Between 18 and 65 years
11 Participants39 Participants39 Participants11 Participants100 Participants
Age, Continuous68.6 years
STANDARD_DEVIATION 7.98
64.5 years
STANDARD_DEVIATION 10.36
66.1 years
STANDARD_DEVIATION 10.2
64.8 years
STANDARD_DEVIATION 10.35
65.8 years
STANDARD_DEVIATION 10.03
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants2 Participants2 Participants1 Participants6 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
25 Participants68 Participants75 Participants22 Participants190 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
7 Participants8 Participants24 Participants2 Participants41 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Asian
2 Participants11 Participants5 Participants0 Participants18 Participants
Race/Ethnicity, Customized
Black or African American
0 Participants2 Participants2 Participants0 Participants4 Participants
Race/Ethnicity, Customized
More than one race
0 Participants0 Participants0 Participants3 Participants3 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Other
0 Participants2 Participants1 Participants0 Participants3 Participants
Race/Ethnicity, Customized
Unknown or Not Reported
7 Participants7 Participants18 Participants2 Participants34 Participants
Race/Ethnicity, Customized
White
24 Participants56 Participants75 Participants20 Participants175 Participants
Region of Enrollment
AUSTRIA
0 Participants2 Participants2 Participants0 Participants4 Participants
Region of Enrollment
BELGIUM
3 Participants2 Participants4 Participants0 Participants9 Participants
Region of Enrollment
FRANCE
7 Participants9 Participants20 Participants1 Participants37 Participants
Region of Enrollment
GERMANY
0 Participants5 Participants6 Participants0 Participants11 Participants
Region of Enrollment
INDIA
0 Participants0 Participants0 Participants3 Participants3 Participants
Region of Enrollment
ISRAEL
0 Participants2 Participants3 Participants0 Participants5 Participants
Region of Enrollment
ITALY
4 Participants12 Participants19 Participants0 Participants35 Participants
Region of Enrollment
MOLDOVA, REPUBLIC OF
0 Participants1 Participants0 Participants0 Participants1 Participants
Region of Enrollment
ROMANIA
0 Participants1 Participants1 Participants0 Participants2 Participants
Region of Enrollment
RUSSIAN FEDERATION
1 Participants7 Participants11 Participants0 Participants19 Participants
Region of Enrollment
SOUTH KOREA
2 Participants9 Participants3 Participants0 Participants14 Participants
Region of Enrollment
SPAIN
7 Participants8 Participants4 Participants20 Participants39 Participants
Region of Enrollment
TAIWAN
0 Participants2 Participants2 Participants0 Participants4 Participants
Region of Enrollment
TURKEY
0 Participants0 Participants0 Participants1 Participants1 Participants
Region of Enrollment
UNITED KINGDOM
1 Participants5 Participants5 Participants0 Participants11 Participants
Region of Enrollment
UNITED STATES
8 Participants13 Participants21 Participants0 Participants42 Participants
Sex: Female, Male
Female
11 Participants24 Participants24 Participants10 Participants69 Participants
Sex: Female, Male
Male
22 Participants54 Participants77 Participants15 Participants168 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
31 / 3362 / 7883 / 1013 / 25
other
Total, other adverse events
32 / 3378 / 78101 / 10125 / 25
serious
Total, serious adverse events
14 / 3339 / 7847 / 1019 / 25

Outcome results

Primary

Drug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Infinite Time (AUC[0-Infinity]) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With Erdafitinib

AUC(0-Infinity) is the area under the plasma concentration versus time curve from time 0 to the infinite time of 1-OH-Midazolam alone or in combination with erdafitinib.

Time frame: Cycle 1 Day -2 (predose) up to Day 13 post dose (each cycle length=28 days)

Population: Pharmacokinetic analysis set included all participants who received at least 1 dose of study drug and had at least 1 sample collected during treatment to determine the drug concentration. Here 'N' (number of participants analyzed) signifies number of participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgDrug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Infinite Time (AUC[0-Infinity]) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With Erdafitinib18.1 ng*h/mLStandard Deviation 10.8
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgDrug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Infinite Time (AUC[0-Infinity]) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With Erdafitinib18.4 ng*h/mLStandard Deviation 13.2
Primary

Drug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Infinite Time (AUC[0-Infinity]) of Metformin Alone or in Combination With Erdafitinib

AUC(0-Infinity) is the area under the plasma concentration versus time curve from time 0 to the infinite time of metformin alone or in combination with erdafitinib

Time frame: Cycle 1 Day -1 (predose) up to Day 14 post dose (each cycle length=28 days)

Population: Pharmacokinetic analysis set included all participants who received at least 1 dose of study drug and had at least 1 sample collected during treatment to determine the drug concentration. Here 'N' (number of participants analyzed) signifies number of participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgDrug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Infinite Time (AUC[0-Infinity]) of Metformin Alone or in Combination With Erdafitinib22917 ng*h/mLStandard Deviation 12539
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgDrug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Infinite Time (AUC[0-Infinity]) of Metformin Alone or in Combination With Erdafitinib28853 ng*h/mLStandard Deviation 21738
Primary

Drug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Infinite Time (AUC[0-Infinity]) of Midazolam Alone or in Combination With Erdafitinib

AUC(0-Infinity) is the area under the plasma concentration versus time curve from time 0 to the infinite time of midazolam alone or in combination with erdafitinib.

Time frame: Cycle 1 Day -2 (predose) up to Day 13 post dose (each cycle length=28 days)

Population: Pharmacokinetic analysis set included all participants who received at least 1 dose of study drug and had at least 1 sample collected during treatment to determine the drug concentration. Here 'N' (number of participants analyzed) signifies number of participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgDrug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Infinite Time (AUC[0-Infinity]) of Midazolam Alone or in Combination With Erdafitinib69.8 ng*h/mLStandard Deviation 30.5
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgDrug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Infinite Time (AUC[0-Infinity]) of Midazolam Alone or in Combination With Erdafitinib55.9 ng*h/mLStandard Deviation 28.2
Primary

Drug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Time of the Last Measurable Concentration (AUC[0-last]) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With Erdafitinib

AUC(0-last) is the area under the plasma concentration versus time curve from time 0 to the time of the last measurable concentration of 1-OH-Midazolam alone or in combination with erdafitinib.

Time frame: Cycle 1 Day -2 (predose) up to Day 13 post dose (each cycle length=28 days)

Population: Pharmacokinetic analysis set included all participants who received at least 1 dose of study drug and had at least 1 sample collected during treatment to determine the drug concentration. Here 'N' (number of participants analyzed) signifies number of participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgDrug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Time of the Last Measurable Concentration (AUC[0-last]) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With Erdafitinib15.8 ng*h/mLStandard Deviation 9.59
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgDrug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Time of the Last Measurable Concentration (AUC[0-last]) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With Erdafitinib15.1 ng*h/mLStandard Deviation 10.4
Primary

Drug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Time of the Last Measurable Concentration (AUC[0-last]) of Metformin Alone or in Combination With Erdafitinib

AUC(0-last) is the area under the plasma concentration versus time curve from time 0 to the time of the last measurable concentration of metformin alone or in combination with erdafitinib.

Time frame: Cycle 1 Day -1 (predose) up to Day 14 post dose (each cycle length=28 days)

Population: Pharmacokinetic analysis set included all participants who received at least 1 dose of study drug and had at least 1 sample collected during treatment to determine the drug concentration. Here 'N' (number of participants analyzed) signifies number of participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgDrug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Time of the Last Measurable Concentration (AUC[0-last]) of Metformin Alone or in Combination With Erdafitinib22015 ng*h/mLStandard Deviation 11967
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgDrug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Time of the Last Measurable Concentration (AUC[0-last]) of Metformin Alone or in Combination With Erdafitinib26917 ng*h/mLStandard Deviation 17973
Primary

Drug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Time of the Last Measurable Concentration (AUC[0-last]) of Midazolam Alone or in Combination With Erdafitinib

AUC(0-last) is the area under the plasma concentration versus time curve from time 0 to the time of the last measurable concentration of midazolam alone or in combination with erdafitinib.

Time frame: Cycle 1 Day -2 (predose) up to Day 13 post dose (each cycle length=28 days)

Population: Pharmacokinetic analysis set included all participants who received at least 1 dose of study drug and had at least 1 sample collected during treatment to determine the drug concentration. Here 'N' (number of participants analyzed) signifies number of participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgDrug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Time of the Last Measurable Concentration (AUC[0-last]) of Midazolam Alone or in Combination With Erdafitinib64.4 Nanograms hours per milliliter (ng*h/mL)Standard Deviation 26.8
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgDrug-Drug Interaction (DDI) Substudy: Area Under the Plasma Concentration Versus Time Curve From Time 0 to the Time of the Last Measurable Concentration (AUC[0-last]) of Midazolam Alone or in Combination With Erdafitinib57.1 Nanograms hours per milliliter (ng*h/mL)Standard Deviation 27.2
Primary

Drug-Drug Interaction (DDI) Substudy: Maximum Observed Plasma Concentration (Cmax) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With Erdafitinib

Cmax is the maximum observed plasma concentration of 1-OH-Midazolam (midazolam metabolite) alone or in combination with erdafitinib.

Time frame: Cycle 1 Day -2 (predose) up to Day 13 post dose (each cycle length=28 days)

Population: Pharmacokinetic analysis set included all participants who received at least 1 dose of study drug and had at least 1 sample collected during treatment to determine the drug concentration. Here 'N' (number of participants analyzed) signifies number of participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgDrug-Drug Interaction (DDI) Substudy: Maximum Observed Plasma Concentration (Cmax) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With Erdafitinib5.39 ng/mLStandard Deviation 3.42
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgDrug-Drug Interaction (DDI) Substudy: Maximum Observed Plasma Concentration (Cmax) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With Erdafitinib4.82 ng/mLStandard Deviation 2.6
Primary

Drug-Drug Interaction (DDI) Substudy: Maximum Observed Plasma Concentration (Cmax) of Metformin Alone or in Combination With Erdafitinib

Cmax is the maximum observed plasma concentration of metformin alone or in combination with erdafitinib

Time frame: Cycle 1 Day -1 (predose) up to Day 14 post dose (each cycle length=28 days)

Population: Pharmacokinetic analysis set included all participants who received at least 1 dose of study drug and had at least 1 sample collected during treatment to determine the drug concentration. Here 'N' (number of participants analyzed) signifies number of participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgDrug-Drug Interaction (DDI) Substudy: Maximum Observed Plasma Concentration (Cmax) of Metformin Alone or in Combination With Erdafitinib2465 ng/mLStandard Deviation 986
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgDrug-Drug Interaction (DDI) Substudy: Maximum Observed Plasma Concentration (Cmax) of Metformin Alone or in Combination With Erdafitinib2687 ng/mLStandard Deviation 1127
Primary

Drug-Drug Interaction (DDI) Substudy: Maximum Observed Plasma Concentration (Cmax) of Midazolam Alone or in Combination With Erdafitinib

Cmax is the maximum observed plasma concentration of midazolam alone or in combination with erdafitinib.

Time frame: Cycle 1 Day -2 (predose) up to Day 13 post dose

Population: Pharmacokinetic analysis set included all participants who received at least 1 dose of study drug and had at least 1 sample collected during treatment to determine the drug concentration. Here 'N' (number of participants analyzed) signifies number of participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgDrug-Drug Interaction (DDI) Substudy: Maximum Observed Plasma Concentration (Cmax) of Midazolam Alone or in Combination With Erdafitinib18.4 nanograms per milliliter (ng/mL)Standard Deviation 7.32
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgDrug-Drug Interaction (DDI) Substudy: Maximum Observed Plasma Concentration (Cmax) of Midazolam Alone or in Combination With Erdafitinib15.4 nanograms per milliliter (ng/mL)Standard Deviation 5.9
Primary

Drug-Drug Interaction (DDI) Substudy: Time to Reach the Maximum Observed Plasma Concentration (Tmax) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With Erdafitinib

Tmax is the time to reach the maximum observed plasma concentration of 1-OH-Midazolam alone or in combination with erdafitinib.

Time frame: Cycle 1 Day -2 (predose) up to Day 13 post dose (each cycle length=28 days)

Population: Pharmacokinetic analysis set included all participants who received at least 1 dose of study drug and had at least 1 sample collected during treatment to determine the drug concentration. Here 'N' (number of participants analyzed) signifies number of participants who were evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgDrug-Drug Interaction (DDI) Substudy: Time to Reach the Maximum Observed Plasma Concentration (Tmax) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With Erdafitinib0.58 Hours
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgDrug-Drug Interaction (DDI) Substudy: Time to Reach the Maximum Observed Plasma Concentration (Tmax) of 1-OH-Midazolam (Midazolam Metabolite) Alone or in Combination With Erdafitinib0.58 Hours
Primary

Drug-Drug Interaction (DDI) Substudy: Time to Reach the Maximum Observed Plasma Concentration (Tmax) of Metformin Alone or in Combination With Erdafitinib

Tmax is the time to reach maximum observed plasma concentration of metformin alone or in combination with erdafitinib

Time frame: Cycle 1 Day -1 (predose) up to Day 14 post dose (each cycle length=28 days)

Population: Pharmacokinetic analysis set included all participants who received at least 1 dose of study drug and had at least 1 sample collected during treatment to determine the drug concentration. Here 'N' (number of participants analyzed) signifies number of participants who were evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgDrug-Drug Interaction (DDI) Substudy: Time to Reach the Maximum Observed Plasma Concentration (Tmax) of Metformin Alone or in Combination With Erdafitinib2.04 Hours
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgDrug-Drug Interaction (DDI) Substudy: Time to Reach the Maximum Observed Plasma Concentration (Tmax) of Metformin Alone or in Combination With Erdafitinib3.00 Hours
Primary

Drug-Drug Interaction (DDI) Substudy: Time to Reach the Maximum Observed Plasma Concentration (Tmax) of Midazolam Alone or in Combination With Erdafitinib

Tmax is the time to reach the maximum observed plasma concentration of midazolam alone or in combination with erdafitinib.

Time frame: Cycle 1 Day -2 (predose) up to Day 13 post dose (each cycle length=28 days)

Population: Pharmacokinetic analysis set included all participants who received at least 1 dose of study drug and had at least 1 sample collected during treatment to determine the drug concentration. Here 'N' (number of participants analyzed) signifies number of participants who were evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgDrug-Drug Interaction (DDI) Substudy: Time to Reach the Maximum Observed Plasma Concentration (Tmax) of Midazolam Alone or in Combination With Erdafitinib0.50 Hours
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgDrug-Drug Interaction (DDI) Substudy: Time to Reach the Maximum Observed Plasma Concentration (Tmax) of Midazolam Alone or in Combination With Erdafitinib0.58 Hours
Primary

Main Study: Percentage of Participants With Best (Overall) Objective Response

Percentage of participants with best (overall) objective response were reported. Best objective response is defined as the best (overall) objective response a participants achieved during the study in the order of complete response (CR), partial response (PR), stable disease (SD), progressive disease (PD), where CR and PR were confirmed as per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. As per RECIST version 1.1, CR was defined as the disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must had reduction in the short axis to less than (\<) 10 millimeters (mm). PR was defined as at least a 30 percent (%) decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Responders are participants with BOR of CR or PR.

Time frame: From Cycle 1 Day 1 up to 6 years 2 months

Population: The population included participants who received at least 1 dose of study drug.

ArmMeasureValue (NUMBER)
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgMain Study: Percentage of Participants With Best (Overall) Objective Response21.2 Percentage of Participants
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgMain Study: Percentage of Participants With Best (Overall) Objective Response34.6 Percentage of Participants
Main Study: Regimen 3: Erdafitinib 8 mg/ 9 mgMain Study: Percentage of Participants With Best (Overall) Objective Response39.6 Percentage of Participants
Secondary

Main Study: Duration of Response (DoR)

DOR is defined as the time (in months) from the date of first observation of response (PR or CR) to the date of the first observation of progression or date of death, whatever the cause based on the RECIST version 1.1. CR: disappearance of all target and non-target lesions. All pathological (whether target or non-target) must have a reduction in their short axis \<10 mm. PR: at least a 30% decrease in the SOD of target lesions, taking as reference the baseline sum diameters. PD was defined as at least 20% increase (including an absolute increase of at least 5 mm) in the SOD of target lesions, taking as reference the smallest sum and/or unequivocal progression of existing non-target lesions and/or appearance of 1 or more new lesions.

Time frame: From screening up to 6 years 2 months

Population: The population included participants who received at least 1 dose of study drug and who had CR or PR.

ArmMeasureValue (MEDIAN)
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgMain Study: Duration of Response (DoR)13.37 months
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgMain Study: Duration of Response (DoR)4.90 months
Main Study: Regimen 3: Erdafitinib 8 mg/ 9 mgMain Study: Duration of Response (DoR)5.98 months
Secondary

Main Study: Overall Survival

Overall survival is defined as the time from the date of first dose of study drug to the date of the participant's death from any cause.

Time frame: From screening up to 6 years 2 months

Population: The population included participants who received at least 1 dose of study drug.

ArmMeasureValue (MEDIAN)
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgMain Study: Overall Survival7.46 months
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgMain Study: Overall Survival8.64 months
Main Study: Regimen 3: Erdafitinib 8 mg/ 9 mgMain Study: Overall Survival11.30 months
Secondary

Main Study: Percentage of Participants With Treatment-emergent Adverse Event (TEAEs)

Percentage of participants with TEAEs were reported. An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. TEAEs are those events that occurred from first dose date through 30 days after last dose date, or day before subsequent anticancer therapy, whichever occurs first.

Time frame: From Day 1 up to 6 years 2 months

Population: The population included participants who received at least 1 dose of study drug.

ArmMeasureValue (NUMBER)
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgMain Study: Percentage of Participants With Treatment-emergent Adverse Event (TEAEs)100 Percentage of Participants
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgMain Study: Percentage of Participants With Treatment-emergent Adverse Event (TEAEs)100 Percentage of Participants
Main Study: Regimen 3: Erdafitinib 8 mg/ 9 mgMain Study: Percentage of Participants With Treatment-emergent Adverse Event (TEAEs)100 Percentage of Participants
Secondary

Main Study: Plasma Concentration of Erdafitinib at 2 Hours (C2h)

C2h is the plasma concentration of erdafitinib at 2 hours.

Time frame: Cycle 1 Days 1 and 21: Pre-dose up to 2 hours post-dose (each cycle length=28 days)

Population: Pharmacokinetic analysis set included all participants who received at least 1 dose of study drug and had at least 1 sample collected during treatment to determine the drug concentration. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure. Here, 'n' (number analyzed) signifies participants evaluable for this outcome measure at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgMain Study: Plasma Concentration of Erdafitinib at 2 Hours (C2h)Cycle 1 Day 1529.5 ng/mLStandard Deviation 224.9
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgMain Study: Plasma Concentration of Erdafitinib at 2 Hours (C2h)Cycle 1 Day 211686.5 ng/mLStandard Deviation 872.3
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgMain Study: Plasma Concentration of Erdafitinib at 2 Hours (C2h)Cycle 1 Day 1311.0 ng/mLStandard Deviation 134.8
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgMain Study: Plasma Concentration of Erdafitinib at 2 Hours (C2h)Cycle 1 Day 211255.1 ng/mLStandard Deviation 640
Main Study: Regimen 3: Erdafitinib 8 mg/ 9 mgMain Study: Plasma Concentration of Erdafitinib at 2 Hours (C2h)Cycle 1 Day 1373.0 ng/mLStandard Deviation 168.1
Main Study: Regimen 3: Erdafitinib 8 mg/ 9 mgMain Study: Plasma Concentration of Erdafitinib at 2 Hours (C2h)Cycle 1 Day 211371.4 ng/mLStandard Deviation 586.6
Secondary

Main Study: Plasma Concentration of Erdafitinib at 4 Hours (C4h)

C4h is the plasma concentration of erdafitinib at 4 hours.

Time frame: Cycle 1 Days 1 and 21: Pre-dose up to 4 hours post-dose (each cycle length=28 days)

Population: Pharmacokinetic analysis set included all participants who received at least 1 dose of study drug and had at least 1 sample collected during treatment to determine the drug concentration. Here, 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure. Here, 'n' (number analyzed) signifies participants evaluable for this outcome measure at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgMain Study: Plasma Concentration of Erdafitinib at 4 Hours (C4h)Cycle 1 Day 211753.4 ng/mLStandard Deviation 917.8
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgMain Study: Plasma Concentration of Erdafitinib at 4 Hours (C4h)Cycle 1 Day 1504.0 ng/mLStandard Deviation 189.6
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgMain Study: Plasma Concentration of Erdafitinib at 4 Hours (C4h)Cycle 1 Day 211257.4 ng/mLStandard Deviation 663.2
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgMain Study: Plasma Concentration of Erdafitinib at 4 Hours (C4h)Cycle 1 Day 1290.0 ng/mLStandard Deviation 117.9
Main Study: Regimen 3: Erdafitinib 8 mg/ 9 mgMain Study: Plasma Concentration of Erdafitinib at 4 Hours (C4h)Cycle 1 Day 1365.3 ng/mLStandard Deviation 155.6
Main Study: Regimen 3: Erdafitinib 8 mg/ 9 mgMain Study: Plasma Concentration of Erdafitinib at 4 Hours (C4h)Cycle 1 Day 211329.9 ng/mLStandard Deviation 550.1
Secondary

Main Study: Progression-free Survival (PFS)

Progression-free survival is defined as the duration from the date of the first dose of study drug until the date of first documented evidence of progressive disease (or relapse for participants who experience CR during the study) or death due to any cause, whichever occurs first, regardless of the use of subsequent anticancer therapy. As per RECIST version 1.1, CR was defined as the disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must had reduction in the short axis to less than (\<) 10 millimeters (mm). PR was defined as at least a 30 percent (%) decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.

Time frame: From screening up to 6 years 2 months

Population: The population included participants who received at least 1 dose of study drug.

ArmMeasureValue (MEDIAN)
Main Study: Regimen 1: Erdafitinib 10 Milligrams (mg)/ 12 mgMain Study: Progression-free Survival (PFS)4.80 months
Main Study: Regimen 2: Erdafitinib 6 mg/ 8 mgMain Study: Progression-free Survival (PFS)5.26 months
Main Study: Regimen 3: Erdafitinib 8 mg/ 9 mgMain Study: Progression-free Survival (PFS)5.52 months

Source: ClinicalTrials.gov · Data processed: Aug 29, 2026