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Study of Oral Infigratinib for the Adjuvant Treatment of Subjects With Invasive Urothelial Carcinoma With Susceptible FGFR3 Genetic Alterations

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ClinicalTrials.gov Identifier: NCT04197986
Recruitment Status : Terminated (The sponsor has decided to close the study due to the discontinuation of infigratinib development. The discontinuation of the study was not due to safety reasons.)
First Posted : December 13, 2019
Last Update Posted : February 2, 2023
Helsinn Healthcare SA
Information provided by (Responsible Party):
QED Therapeutics, Inc.

Brief Summary:
This is a Phase 3 multicenter, double-blind, randomized, placebo-controlled study to evaluate the efficacy of infigratinib (an oral targeted FGFR1-3 inhibitor) versus placebo, as adjuvant treatment following surgery in adult subjects with invasive urothelial carcinoma and susceptible FGFR3 genetic alterations (mutations, and gene fusions or rearrangements) who have disease that is considered at high risk for recurrence with surgery alone. The study enrolls subjects with either bladder cancer post radical cystectomy or upper tract urothelial cancer post distal ureterectomy and/or nephrectomy. Study treatment is randomized 1:1 between infigratinib or placebo with treatment up to 1 year or until invasive local, distal, or metastatic disease recurrence confirmed by independent imaging reviewer.

Condition or disease Intervention/treatment Phase
Upper Tract Urothelial Carcinomas Urothelial Bladder Cancer Drug: Infigratinib Drug: Placebo Phase 3

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 39 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Intervention Model Description: Participants will be randomly assigned (1:1) to receive oral infigratinib phosphate or placebo
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Masking Description: As a double-blind study, participants, investigators, study monitor(s) and the clinical study team will be blinded to the treatment administered.
Primary Purpose: Treatment
Official Title: Phase 3, Multicenter, Double-Blind, Randomized, Placebo-Controlled Trial of Infigratinib for the Adjuvant Treatment of Subjects With Invasive Urothelial Carcinoma With Susceptible FGFR3 Genetic Alterations (PROOF 302)
Actual Study Start Date : March 11, 2020
Actual Primary Completion Date : January 11, 2023
Actual Study Completion Date : January 11, 2023

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: Infigratinib 125 mg
Participants will be randomly assigned (1:1) to receive oral infigratinib administered once daily for the first 3 weeks (21 days) of each 28-day cycle for a maximum of 52 weeks
Drug: Infigratinib
Participants randomly assigned to infigratinib will receive hard gelatin capsules for oral administration of infigratinib 125 mg once a day (administered as one 100-mg capsule and one 25-mg capsule) using a 3 weeks on (Days 1-21) /1 week off (Days 22-28) dosing schedule.
Other Names:
  • IP
  • Study drug

Placebo Comparator: Placebo
Participants will be randomly assigned (1:1) to receive oral placebo administered once daily for the first 3 weeks (21 days) of each 28-day cycle for a maximum of 52 weeks
Drug: Placebo
Participants randomly assigned to placebo will receive placebo matching in appearance the investigational product (infigratinib), which will be provided as hard gelatin capsules for oral use and will be administered once daily on a 3 weeks on (Days 1-21) /1 week off (Days 22-28) dosing schedule.

Primary Outcome Measures :
  1. Centrally determine disease-free survival (DFS) [ Time Frame: Randomization through up to an approximated 5 years (60 months) after end of treatment ]

Secondary Outcome Measures :
  1. Compare DFS including intraluminal low-risk recurrence [ Time Frame: Randomization through up to an approximated 5 years (60 months) after end of treatment ]
  2. Compare metastasis-free survival (MFS) [ Time Frame: Randomization through up to an approximated 5 years (60 months) after end of treatment ]
  3. Compare overall survival (OS) [ Time Frame: Randomization through 15 years after end of treatment ]
  4. Compare investigator-reviewed DFS [ Time Frame: Randomization through up to an approximated 5 years (60 months) after end of treatment ]
  5. Number of participants with adverse events (AEs) and serious adverse events (SAEs) as a measure of safety and tolerability [ Time Frame: 30-Day Post-Treatment ]

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Key Inclusion Criteria

  1. Are randomized within 120 days following nephroureterectomy, distal ureterectomy or cystectomy.
  2. Have histologically or cytologically confirmed, invasive urothelial carcinoma with susceptible FGFR3 alterations. Variant histology is allowed provided urothelial carcinoma is predominant (>50%). Neuroendocrine (including small and large cell), sarcomatoid, and plasmacytoid variants are excluded (any component).

    1. Regarding samples and documentation of FGFR3

      • i. FGFR3 mutation is confirmed if: FGFR3 gene is mutated in Exon 7 (R248C, S249C), Exon 10 (G370C, A391E, Y373C), or Exon 15 (K650M/T, K650E/Q)


      • ii. FGFR3 gene fusion or FGFR3 rearrangement is confirmed based on the following genomic criteria if:

        • Any fusion/rearrangement with a literature-derived known partner gene regardless of strand or frame.
        • Fusion/rearrangements in the same strand that are in frame with a novel partner gene.
        • Fusion/rearrangements with one breakpoint in the intron 17 - exon 18 hotspot region and the other breakpoint in an intergenic region or another gene. This rule excludes 3' duplications comprising only exon 18.
      • iii. The amino acid numbers for the FGFR3 mutations refer to the functional FGFR3 isoform 1 (NP_000133.1) that is the NCBI Refseq ID used to report genetic alterations in FGFR3 by the FoundationOne® CDx test (F1CDx, Foundation Medicine, USA).
      • iv. FGFR3 alteration must be confirmed by Foundation Medicine for F1CDx testing:

        • The tumor sample to be used should be from the definitive surgical resection (cystectomy, nephroureterectomy, or distal ureterectomy), or from an archival biopsy of confirmed invasive urothelial carcinoma (≥pT2).
    2. If status post neoadjuvant chemotherapy, pathologic stage at surgical resection must be Stage ≥ ypT2 and/or yN+. Prior neoadjuvant therapy is defined as at least 3 cycles of neoadjuvant cisplatin-based chemotherapy with a planned cisplatin dose of 70 mg/m2/cycle. Subjects who received less than this or non-cisplatin-based neoadjuvant treatment are not excluded.
    3. If not status post neoadjuvant chemotherapy, is ineligible to receive cisplatin-based adjuvant chemotherapy based on Galsky criteria:
    4. Subjects who refuse cisplatin-based chemotherapy or who are ineligible to receive cisplatin-based chemotherapy based on Galsky criteria must also meet the following criteria:
    5. Must have a centrally reviewed negative postoperative computed tomography (CT) (defined as lymph nodes with short axis <1.0 cm and without growth and no distant metastases according to [RECIST v1.1 criteria or negative biopsy within 28 days before randomization to confirm absence of disease at baseline.
  3. Have Eastern Cooperative Oncology Group (ECOG) performance status of ≤2.
  4. If a woman of childbearing potential, must have a negative pregnancy test within 7 days of the first dose of study drug. Sexually active males must use a condom during intercourse while taking study drug and for 1 month after the last dose of study drug and should not father a child during this period

Key Exclusion Criteria:

  1. Presence of positive invasive surgical margins following nephroureterectomy, distal ureterectomy, or cystectomy. In subjects not eligible for further surgery, radiotherapy, or other efficacious treatment, microscopic positive noninvasive margins (eg, carcinoma in situ) without gross residual disease are allowed.
  2. Have received Bacillus Calmette-Guerin (BCG) or other intravesical therapy for Non-Muscle Invasive Bladder Cancer (NMIBC) within the previous 30 days.
  3. Are currently receiving or are planning to receive during participation in this study, treatment with agents that are known moderate or strong inducers or inhibitors of CYP3A4 and medications which increase serum phosphorus and/or calcium concentration. Prior anticancer or other therapies are restricted as follows:

    1. Prior adjuvant treatment for urothelial cancer is not allowed.
    2. Prior neoadjuvant therapy (eg, chemotherapy, immunotherapy, or investigational) is allowed if inclusion criterion #4 is met. Prior neoadjuvant chemotherapy must have been completed within a period of time that is greater than the cycle length used for that treatment before first dose of study drug.
    3. Prior biologic, immunotherapy, or investigational therapy should have been completed within a period that is ≥5 half-lives or 30 days, whichever is shorter, before the first dose of study drug.
  4. Have previously or currently is receiving treatment with a mitogen-activated protein kinase (MEK) or selective FGFR inhibitor.
  5. Have a history of primary malignancy within the past 3 years other than (1) invasive UBC or UTUC (ie, disease under study), (2) noninvasive urothelial carcinoma, (3) any adequately treated in situ carcinoma or non-melanoma carcinoma of the skin, (4) any other curatively treated malignancy that is not expected to require treatment for recurrence during participation in the study, or (5) an untreated cancer on active surveillance that may not affect the subject's survival status for ≥3 years based on clinician assessment/statement and with medical monitor approval.
  6. Have current evidence of corneal keratopathy or retinal disorder confirmed by ophthalmic examination. Subjects with asymptomatic ophthalmic conditions assessed by the investigator to pose minimal risk for study participation may be enrolled in the study.
  7. Have a history and/or current evidence of extensive tissue calcification
  8. Have impaired gastrointestinal (GI) function or GI disease that may significantly alter the absorption of oral infigratinib
  9. Have current evidence of endocrine alterations of calcium/phosphate homeostasis (eg, parathyroid disorders, history of parathyroidectomy, tumor lysis, tumoral calcinosis), unless well controlled.
  10. Have consumed grapefruit, grapefruit juice, grapefruit hybrids, pomegranates, star fruits, pomelos, or Seville oranges or products containing juice of these fruits within 7 days before the first dose of study drug; have taken any Chinese herbal medicine or Chinese patent medicine treatments with anticancer activity within 14 days of the first dose of study drug.
  11. Have insufficient bone marrow function:

    1. Absolute neutrophil count (ANC) <1,000/mm3 (1.0 × 109/L).
    2. Platelets <75,000/mm3 (<75 × 109/L).
    3. Hemoglobin <8.5 g/dL; transfusion support is allowed if >1 week before randomization and hemoglobin remains stable.
  12. Have insufficient hepatic and renal function:

    1. Total bilirubin >1.5 × upper limit of normal (ULN) of the testing laboratory (for subjects with documented Gilbert syndrome, direct bilirubin must be ≤1.5 × ULN and enrollment requires approval by the medical monitor).
    2. AST/SGOT and ALT/SGPT >2.5 × ULN of the testing laboratory.
    3. Serum creatinine >1.5 × ULN or a calculated or measured creatinine clearance of <30 mL/min.
  13. Have amylase or lipase >2.0 × ULN.
  14. Have abnormal calcium or phosphorus:

    1. Inorganic phosphorus higher than 1.02 × ULN of the testing laboratory.
    2. Total serum calcium (can be corrected) higher than 1.02 × ULN of the testing laboratory.
  15. Have clinically significant cardiac disease including any of the following:

    1. New York Heart Association (NYHA) Class ≥2B; subjects with known history or current symptoms of cardiac disease, or history of treatment with cardiotoxic agents, should have a clinical risk assessment of cardiac function using the NYHA classification.
    2. Uncontrolled hypertension
    3. Presence of CTCAE v5.0 Grade ≥2 ventricular arrhythmias, atrial fibrillation, bradycardia, or conduction abnormality.
    4. Unstable angina pectoris or acute myocardial infarction ≤3 months before the first dose of study drug.
    5. Average QTcF >470 msec (males and females). Note: If the QTcF is >470 msec in the first ECG, a total of 3 ECGs separated by ≥5 minutes should be performed. If the average of these 3 consecutive results for QTcF is ≤470 msec, the subject meets eligibility in this regard.
    6. History of congenital long QT syndrome.
  16. Have had a recent (≤3 months before the first dose of study drug) transient ischemic attack or stroke.
  17. If female, are pregnant or nursing (lactating).

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04197986

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Sponsors and Collaborators
QED Therapeutics, Inc.
Helsinn Healthcare SA
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Study Director: David van Veenhuyzen, M.B., Ch.B., M.Pharm.Med. QED Therapeutics, Inc.
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: QED Therapeutics, Inc.
ClinicalTrials.gov Identifier: NCT04197986    
Other Study ID Numbers: QBGJ398-302
2019-003248-63 ( EudraCT Number )
First Posted: December 13, 2019    Key Record Dates
Last Update Posted: February 2, 2023
Last Verified: October 2022
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Undecided

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by QED Therapeutics, Inc.:
FGFR3 Genetic Alterations
Upper Tract Urothelial Carcinomas
Muscle Invasive Urothelial Carcinoma
Fibroblast Growth Factor Receptor Inhibitor
Urothelial Bladder Cancer
Infigratinib Phosphate
Distal ureterectomy
Additional relevant MeSH terms:
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Urinary Bladder Neoplasms
Carcinoma, Transitional Cell
Neoplasms, Glandular and Epithelial
Neoplasms by Histologic Type
Urologic Neoplasms
Urogenital Neoplasms
Neoplasms by Site
Urinary Bladder Diseases
Urologic Diseases
Antineoplastic Agents