TheraRadar
Data updated: May 26, 2026

FLUOROURACIL

Nucleic Acid Synthesis Inhibitors Trial Activity: Stable 104 active trials
Oncology Approved 1962-04-25

FLUOROURACIL is indicated for the treatment of Actinic Keratosis; Solar Keratosis; Basal Cell Carcinoma.

Development Insights

Merck Sharp & Dohme LLC conducting 19 trials (6%)
272 indications explored (Broad Platform)
colorectal cancer (30 trials)
gastric cancer (24 trials)
metastatic colorectal cancer (24 trials)
31
Indications
--
Phase 3 Trials
1
Priority Reviews
64
Years on Market

FLUOROURACIL Approval History

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Original
New Indication
New Form
Label Update
205 FDA actions from 1962 to 2026 · 1 indication expansions
Feb 2026 SUPPL
Label · Labeling
Feb 2026 SUPPL
Label · Labeling
Feb 2025 ORIGINAL
Update

What FLUOROURACIL Treats

3 indications

FLUOROURACIL is approved for 3 conditions since its original approval in 1962. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Actinic Keratosis
  • Solar Keratosis
  • Basal Cell Carcinoma
Source: FDA Label

FLUOROURACIL Competitive Set

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Three rings of competition based on shared molecular targets and treated indications.

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

What's emerging in FLUOROURACIL's indications

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Phase 3 candidates targeting molecules with no FDA-approved drug, in indications FLUOROURACIL treats. First-in-class if their pivotal trials read out positive.

Drugs Similar to FLUOROURACIL

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FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

CARAC
FLUOROURACIL
3 shared
EXTROVIS
Shared indications:
Actinic KeratosisSolar KeratosisBasal Cell Carcinoma
FAVLYXA
FLUOROURACIL
3 shared
AVYXA HOLDINGS
Shared indications:
Actinic KeratosisSolar KeratosisBasal Cell Carcinoma
IMIQUIMOD
IMIQUIMOD
2 shared
Apotex
Shared indications:
Actinic KeratosisBasal Cell Carcinoma
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Clinical Trial Registry

582 trials
Trial Sponsor ID Phase Status Title
NCT06770582 NCI-2025-00008 NCI-2025-00008, NRG-GU014 Ph 2 recruiting Testing the Addition of the Immunotherapy Drug, Pembrolizumab, to Radiation Therapy Compared to the Usual Chemotherapy Treatment During Radiation Therapy for Bladder Cancer, PARRC Trial
NCT06654037 NCI-2024-08691 NCI-2024-08691, 10670 Ph 1 recruiting Testing the Addition of an Anti-Cancer Drug, Abemaciclib, to the Usual Chemotherapy Treatment (5-Fluorouracil) for Metastatic, Refractory Colorectal Cancer
NCT04929028 NCI-2021-06041 NCI-2021-06041, AMC-110 Ph 2 active not recruiting Therapy Adapted for High Risk and Low Risk HIV-Associated Anal Cancer
NCT04216290 NCI-2019-08628 NCI-2019-08628, EA8185 Ph 2 active not recruiting A Study of Chemotherapy and Radiation Therapy Compared to Chemotherapy and Radiation Therapy Plus MEDI4736 (Durvalumab) Immunotherapy for Bladder Cancer Which Has Spread to the Lymph Nodes, INSPIRE Trial
NCT06696768 NCI-2024-09416 NCI-2024-09416, 10655 Ph 1 recruiting Clinical Trial of an Anti-cancer Drug, CA-4948 (Emavusertib), in Combination With Chemotherapy Treatment (FOLFOX Plus Bevacizumab) in Metastatic Colorectal Cancer
NCT05564403 NCI-2022-07833 NCI-2022-07833, EAY191-A6 Ph 2 active not recruiting Study of Chemotherapy, With or Without Binimetinib in Advanced Biliary Tract Cancers in 2nd Line Setting (A ComboMATCH Treatment Trial)
NCT04210115 3475-975 MK-3475-975, KEYNOTE-975 Ph 3 active not recruiting Study of Pembrolizumab (MK-3475) Versus Placebo in Participants With Esophageal Carcinoma Who Are Receiving Chemotherapy and Radiation Therapy (MK-3475-975/KEYNOTE-975)
NCT05836584 NCI-2023-03192 NCI-2023-03192, EA2212 Ph 2 active not recruiting Testing Immunotherapy (Atezolizumab) With or Without Chemotherapy in Locoregional MSI-H/dMMR Gastric and Gastroesophageal Junction (GEJ) Cancer
NCT02997228 NCI-2016-01961 NCI-2016-01961, NRG-GI004/S1610 Ph 3 active not recruiting Testing the Addition of Atezolizumab to Combination Chemotherapy or Atezolizumab Alone for Metastatic Colon or Rectal Cancer, the COMMIT Study
NCT05564377 NCI-2022-06842 NCI-2022-06842, EAY191 Ph 2 recruiting Targeted Therapy Directed by Genetic Testing in Treating Patients With Locally Advanced or Advanced Solid Tumors, The ComboMATCH Screening Trial
NCT07582315 BL-B01D1-317 Ph 3 not yet recruiting A Study Comparing BL-B01D1 With Treatment of Physician's Choice in Patients With Locally Advanced or Metastatic Biliary Tract Cancer After Failure of Platinum-based Chemotherapy and PD-1/PD-L1 Monoclonal Antibody Therapy(PANKU-BTC01)
NCT07579195 RG1126354 NCI-2026-02920, FHIRB0021260 Ph 1, Ph 2 not yet recruiting Consolidative Therapy After EV + Pembrolizumab in Muscle Invasive Bladder Cancer, REINFORCE Trial
NCT06764875 D702AC00001 2024-512583-57-00 Ph 3 recruiting A Phase Ⅲ Study of Rilvegostomig in Combination With Fluoropyrimidine and Trastuzumab Deruxtecan as the First-line Treatment for HER2-positive Gastric Cancer
NCT07566156 C5701009 EV-309, 2026-525612-34-00 Ph 3 recruiting Enfortumab Vedotin in Combination With Pembrolizumab vs. Concurrent Chemoradiotherapy (cCRT) in People With Muscle Invasive Bladder Cancer ( EV-309 )
NCT07318805 C6321001 2025-524387-38-00 Ph 1 recruiting A Study to Learn About the Study Medicine Called PF-08032562 in People With Advanced or Metastatic Solid Tumors
NCT06662786 OrigAMI-2 61186372COR3001 2024-513852-13-00 Ph 3 recruiting A Study of Amivantamab and mFOLFOX6 or FOLFIRI Versus Cetuximab and mFOLFOX6 or FOLFIRI as First-line Treatment in Participants With KRAS/NRAS and BRAF Wild-type Unresectable or Metastatic Left-sided Colorectal Cancer
NCT05568095 STAR-221 STAR-221 jRCT2051220179, MOH_2023-04-30_012590 Ph 3 active not recruiting A Clinical Trial of a New Combination Treatment, Domvanalimab and Zimberelimab, Plus Chemotherapy, for People With an Upper Gastrointestinal Tract Cancer That Cannot be Removed With Surgery That Has Spread to Other Parts of the Body
NCT06750094 OrigAMI-3 61186372COR3002 2024-513853-66-00 Ph 3 recruiting A Study of Amivantamab and FOLFIRI Versus Cetuximab/Bevacizumab and FOLFIRI in Participants With KRAS/NRAS and BRAF Wild-type Colorectal Cancer Who Have Previously Received Chemotherapy
NCT05379595 OrigAMI-1 CR109215 61186372GIC2002, 2021-006629-23 Ph 1, Ph 2 recruiting A Study of Amivantamab Monotherapy and in Addition to Standard-of-Care Chemotherapy in Participants With Advanced or Metastatic Colorectal Cancer
NCT05677490 A022102 NCI-2022-08569 Ph 3 recruiting mFOLFIRINOX Versus mFOLFOX With or Without Nivolumab for the Treatment of Advanced, Unresectable, or Metastatic HER2 Negative Esophageal, Gastroesophageal Junction, and Gastric Adenocarcinoma
NCT02135042 NRG-HN001 U10CA180868, U10CA021661 Ph 2, Ph 3 active not recruiting Individualized Treatment Treating Patients With Stage II-IVB Nasopharyngeal Cancer Based on EBV DNA
NCT03801876 NRG-GI006 NCI-2018-03378, NRG-GI006 Ph 3 recruiting Comparing Proton Therapy to Photon Radiation Therapy for Esophageal Cancer
NCT04083599 GCT1042-01 2018-003716-47, IRAS ID: 263292 Ph 1, Ph 2 active not recruiting GEN1042 Safety Trial and Anti-tumor Activity in Participants With Malignant Solid Tumors
NCT06094140 NEO-IMPACT NEO-IMPACT Ph 2 active not recruiting NEO-adjuvant Chemo-immunotherapy in Pancreatic Cancer
NCT07076212 103973 Ph 2 recruiting Evaluating NALIRIFOX vs Modified Gemcitabine, Nab-Paclitaxel and Cisplatin in Patients With Locally Advanced and Metastatic Pancreatic Adenocarcinoma
NCT03784326 2018-0678 NCI-2018-02828, 2018-0678 Ph 2 active not recruiting Phase I/II Study of Perioperative Chemotherapy Plus Immunotherapy Followed by Surgery in Localized Esophageal and Gastroesophageal Adenocarcinoma
NCT05365581 2138-CL-0101 jRCT2031210644, CTR20241945 Ph 1 recruiting A Study of ASP2138 Given by Itself or Given With Other Cancer Treatments in Adults With Stomach Cancer, Gastroesophageal Junction Cancer, or Pancreatic Cancer
NCT05721755 EA3211 NCI-2022-10141, EA3211 Ph 3 active not recruiting Combining Radiation Therapy With Immunotherapy for the Treatment of Metastatic Squamous Cell Carcinoma of the Head and Neck
NCT05355701 C4761001 BRAF Class 2 Ph 1 recruiting A Study to Learn About the Study Medicine Called PF-07799933 in People With Advanced Solid Tumors With BRAF Alterations.
NCT05863195 EA2222 NCI-2023-02357, EA2222 Ph 3 recruiting Testing Pump Chemotherapy in Addition to Standard of Care Chemotherapy Versus Standard of Care Chemotherapy Alone for Patients With Unresectable Colorectal Liver Metastases: The PUMP Trial
NCT04248452 EA2183 NCI-2019-06460, EA2183 Ph 3 active not recruiting Testing the Addition of Radiotherapy to the Usual Treatment (Chemotherapy) for Patients With Esophageal and Gastric Cancer That Has Spread to a Limited Number of Other Places in the Body
NCT05083481 1570-CL-0101 jRCT2031220527, KEYNOTE-E59 Ph 1, Ph 2 active not recruiting A Study of ASP1570 Taken by Itself, or ASP1570 Taken Together With Either Pembrolizumab, Standard Therapies, or Both, in Adults With Solid Tumors
NCT04166318 EA2182 NCI-2019-02259, EA2182 Ph 2 active not recruiting Lower-Dose Chemoradiation in Treating Patients With Early-Stage Anal Cancer, the DECREASE Study
NCT04233866 EA2186 NCI-2019-08286, EA2186 Ph 2 active not recruiting Comparing Two Treatment Combinations, Gemcitabine and Nab-Paclitaxel With 5-Fluorouracil, Leucovorin, and Liposomal Irinotecan for Older Patients With Pancreatic Cancer That Has Spread
NCT06057038 GCT1042-03 jRCT2031230438 Ph 1 active not recruiting A Safety Trial of GEN1042 in Japanese Subjects With Malignant Solid Tumors
NCT02912559 results posted NCI-2016-01417 NCI-2016-01417, A021502 Ph 3 active not recruiting Combination Chemotherapy With or Without Atezolizumab in Treating Patients With Stage III Colon Cancer and Deficient DNA Mismatch Repair
NCT06958328 LAP100 NRG-GI011 NCI-2025-01624, NRG-GI011 Ph 3 recruiting Testing Higher Dose Radiation Therapy for Locally Advanced Pancreatic Cancer
NCT04481204 2020-0075 NCI-2020-04886, 2020-0075 Ph 2 withdrawn New and Emerging Therapies for the Treatment of Resectable, Borderline Resectable, or Locally Advanced Pancreatic Cancer, PIONEER-Panc Study
NCT03504397 Spotlight results posted 8951-CL-0301 2017-002567-17, CTR20190258 Ph 3 active not recruiting A Study to Compare Zolbetuximab (IMAB362) and Chemotherapy With Placebo and Chemotherapy in Adults With Gastric Cancer.
NCT07097142 NRG-GU015 NCI-2025-04136, NRG-GU015 Ph 3 recruiting Testing Shorter Duration Radiation Therapy Versus the Usual Radiation Therapy in Patients Receiving the Usual Chemotherapy Treatment for Bladder Cancer, ARCHER Study
NCT05067283 KANDLELIT-001 1084-001 MK-1084-001, jRCT2041220034 Ph 1 recruiting A Study of Calderasib (MK-1084) in KRAS Mutant Advanced Solid Tumors (MK-1084-001)
NCT03775265 NCI-2018-03264 NCI-2018-03264, S1806 Ph 3 active not recruiting Chemoradiotherapy With or Without Atezolizumab in Treating Patients With Localized Muscle Invasive Bladder Cancer
NCT00980460 results posted NCI-2011-01975 NCI-2011-01975, AHEP0731 Ph 3 active not recruiting Risk-Based Therapy in Treating Younger Patients With Newly Diagnosed Liver Cancer
NCT00588770 results posted NCI-2009-00507 NCI-2009-00507, E1305 Ph 3 active not recruiting Chemotherapy With or Without Bevacizumab in Treating Patients With Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma
NCT07214298 I-4316824 NCI-2025-06680, I-4316824 Ph 1, Ph 2 recruiting Pegcetacoplan in Combination With Modified FOLFIRINOX for the Treatment of Metastatic Pancreatic Ductal Adenocarcinoma
NCT05329766 EDGE-Gastric ARC-21 2021-006291-16, 2024-511917-40-00 Ph 2 active not recruiting A Safety and Efficacy Study of Treatment Combinations With and Without Chemotherapy in Adult Participants With Advanced Upper Gastrointestinal Tract Malignancies
NCT06997497 1084-012 MK-1084-012, KANDLELIT-012 Ph 3 recruiting A Clinical Study of Calderasib (MK-1084) With Targeted Therapy and Chemotherapy in People With Colorectal Cancer (MK-1084-012/KANDLELIT-012)
NCT04662710 results posted 7902-015 MK-7902-015, E7080-G000-321 Ph 3 completed Efficacy and Safety of Lenvatinib (E7080/MK-7902) Plus Pembrolizumab (MK-3475) Plus Chemotherapy in Participants With Advanced/Metastatic Gastroesophageal Adenocarcinoma (MK-7902-015/E7080-G000-321/LEAP-015)
NCT07554456 BL-B01D1-315 Ph 2, Ph 3 not yet recruiting A Study of BL-B01D1 in Combination With Tislelizumab ±5-Fluorouracil Versus Platinum-Based Chemotherapy Plus Tislelizumab as First-line Treatment in Patients With Unresectable, Locally Advanced Recurrent or Metastatic Esophageal Squamous Cell Carcinoma(PANKU-Esophagus02)
NCT07441369 GWK-2026-002 Ph 2 enrolling by invitation Abemaciclib Combined With FOLFOX/FOLFIRI Regimen in Patients With Advanced Colorectal Liver Metastases Cancer

Showing 50 of 582 trials

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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

FLUOROURACIL FDA Label Details

Indications & Usage

FDA Label (PDF)

FLUOROURACIL is indicated for the treatment of Actinic Keratosis; Solar Keratosis; Basal Cell Carcinoma.

Looking for the branded version?

FAVLYXA

Full clinical data, patents, trials, and competitive landscape for fluorouracil.

See FAVLYXA

Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.

How We Calculate These Metrics

Trial Activity Stage

Measures the current development activity pattern based on trial phases, status, and trends. Important: This measures R&D activity, not commercial lifecycle.

Trial statuses: "Active" means recruiting or ongoing. "Completed" means reached planned endpoint. "Terminated" means stopped early—often due to safety, efficacy, or business reasons.

  • Growth: High proportion of early-phase trials (Phase 1/2), active development
  • Expansion: Significant Phase 3 activity, approaching or pursuing approvals
  • Mature: Substantial Phase 4 post-marketing studies
  • Stable: Mixed phase distribution, steady development
  • Declining: Low active trial ratio, reduced R&D investment