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Roflumilast

Generic Name
Roflumilast
Brand Names
Daliresp, Zoryve, Daxas
Drug Type
Small Molecule
Chemical Formula
C17H14Cl2F2N2O3
CAS Number
162401-32-3
Unique Ingredient Identifier
0P6C6ZOP5U

Overview

Roflumilast is a highly selective phosphodiesterase-4 (PDE4) inhibitor. PDE4 is a major cyclic-3',5′-adenosinemonophosphate (cyclic AMP, cAMP)-metabolizing enzyme expressed on nearly all immune and pro-inflammatory cells, in addition to structural cells like those of the smooth muscle or epithelium. The resultant increase in intracellular cAMP induced by roflumilast's inhibition of PDE4 is thought to mediate its disease-modifying effects, although its precise mechanism of action has yet to be elucidated. The oral formulation of roflumilast is indicated to manage the chronic obstructive pulmonary disease. It was first approved by the EMA in July 2010, and by the FDA in January 2018. Roflumilast topical cream is indicated to treat plaque psoriasis. It was first approved by FDA in July 2022 and by Health Canada in April 2023.

Indication

Oral roflumilast is indicated to reduce the risk of COPD exacerbations in patients with severe COPD associated with chronic bronchitis and a history of exacerbations. Topical roflumilast is indicated to treat plaque psoriasis, including intertriginous areas, in patients 12 years of age and older.

Associated Conditions

  • Exacerbation of COPD
  • Psoriasis Vulgaris (Plaque Psoriasis)

Research Report

Published: Jul 31, 2025

Comprehensive Monograph: Roflumilast (DB01656)

Section 1: Molecular Profile and Physicochemical Characteristics

Roflumilast is a small molecule drug that represents a significant therapeutic advancement in the management of specific inflammatory diseases. Its development and application are rooted in its precise chemical structure and distinct physicochemical properties, which dictate its interaction with its biological target and its behavior within the human body. This section provides a foundational overview of the molecule's chemical identity, nomenclature, and key physical characteristics.

1.1 Chemical Identity and Nomenclature

Roflumilast is chemically classified as a benzamide derivative. Its structure is the result of the formal condensation of the carboxy group of 3-(cyclopropylmethoxy)-4-(difluoromethoxy)benzoic acid with the amino group of 3,5-dichloropyridin-4-amine.[1] This specific arrangement of functional groups, including an aromatic ether, a chloropyridine, an organofluorine compound, and a cyclopropane member, is critical to its pharmacological activity.[1]

The molecule is identified across scientific and regulatory domains by a set of standardized names and codes:

  • Systematic (IUPAC) Name: 3-(cyclopropylmethoxy)-N-(3,5-dichloropyridin-4-yl)-4-(difluoromethoxy)benzamide.[1]
  • Generic Name: Roflumilast.
  • CAS Number: 162401-32-3, its unique registry number assigned by the Chemical Abstracts Service.[1]
  • DrugBank ID: DB01656, its accession number in the comprehensive DrugBank database.[1]

Continue reading the full research report

Clinical Trials

Title
Posted
Study ID
Phase
Status
Sponsor
2025/05/18
Phase 1
Recruiting
2025/03/06
Phase 3
Recruiting
2024/11/07
Phase 2
Completed
2024/10/18
Phase 3
Recruiting
2024/10/16
Early Phase 1
Recruiting
2024/10/08
Phase 3
Recruiting
2024/06/13
Phase 1
Active, not recruiting
2024/06/03
Phase 4
Recruiting
2023/06/01
Phase 1
Not yet recruiting
2023/03/10
Phase 3
Completed

FDA Drug Approvals

Approved Product
Manufacturer
NDC Code
Route
Strength
Effective Date
AstraZeneca Pharmaceuticals LP
0310-0095
ORAL
500 ug in 1 1
3/12/2020
Golden State Medical Supply, Inc.
51407-975
ORAL
500 ug in 1 1
3/21/2025
Zydus Lifesciences Limited
70771-1673
ORAL
250 ug in 1 1
9/27/2023
Arcutis Biotherapeutics, Inc.
80610-130
TOPICAL
3 mg in 1 g
1/19/2024
American Health Packaging
60687-786
ORAL
500 ug in 1 1
10/30/2023
Novadoz Pharmaceuticals LLC
72205-201
ORAL
250 ug in 1 1
10/28/2019
Camber Pharmaceuticals, Inc.
31722-623
ORAL
500 ug in 1 1
4/28/2023
AstraZeneca Pharmaceuticals LP
0310-0088
ORAL
250 ug in 1 1
3/12/2020
Novadoz Pharmaceuticals LLC
72205-200
ORAL
500 ug in 1 1
10/28/2019
Camber Pharmaceuticals, Inc.
31722-676
ORAL
250 ug in 1 1
4/28/2023

EMA Drug Approvals

Approved Product
Authorization Holder
Status
Issued Date
Authorised
7/5/2010

HSA Drug Approvals

Approved Product
Manufacturer
Approval Number
Dosage Form
Strength
Approval Date
No HSA approvals found for this drug.

NMPA Drug Approvals

Approved Product
Company
Approval Number
Drug Type
Dosage Form
Approval Date
No NMPA approvals found for this drug.

PPB Drug Approvals

Approved Product
Registration No.
Company
Licence No.
Strength
Registration Date
ROFMILAS TABLETS 500MCG
N/A
N/A
N/A
1/8/2025

TGA Drug Approvals

Approved Product
ARTG ID
Sponsor
Registration Type
Status
Registration Date
No TGA approvals found for this drug.

Health Canada Drug Approvals

Approved Product
Company
DIN
Dosage Form
Strength
Market Date
ZORYVE
arcutis canada, inc.
02556146
Cream - Topical
0.15 % / W/W
3/18/2025
ZORYVE
arcutis canada, inc.
02552566
Foam - Topical
0.3 % / W/W
10/22/2024
ZORYVE
arcutis canada, inc.
02537532
Cream - Topical
0.3 % / W/W
6/2/2023

CIMA AEMPS Drug Approvals

Approved Product
Company
Registration Number
Pharmaceutical Form
Prescription Type
Status
ROFLUMILAST AUROVITAS 250 MICROGRAMOS COMPRIMIDOS EFG
Aurovitas Spain, S.A.U.
89830
COMPRIMIDO
Medicamento Sujeto A Prescripción Médica
Not Commercialized
ROFLUMILAST AUROVITAS 500 MICROGRAMOS COMPRIMIDOS EFG
Aurovitas Spain, S.A.U.
85529
COMPRIMIDO
Medicamento Sujeto A Prescripción Médica
Commercialized
ROFLUMILAST FERRER 250 MICROGRAMOS COMPRIMIDOS EFG
84761
COMPRIMIDO
Medicamento Sujeto A Prescripción Médica
Not Commercialized
ROFLUMILAST FERRER 500 MICROGRAMOS COMPRIMIDOS EFG
84760
COMPRIMIDO
Medicamento Sujeto A Prescripción Médica
Not Commercialized
ROFLUMILAST ABDI 500 MICROGRAMOS COMPRIMIDOS RECUBIERTOS CON PELICULA EFG
Abdi Farma Unipessoal Lda.
86766
COMPRIMIDO RECUBIERTO CON PELÍCULA
Medicamento Sujeto A Prescripción Médica
Not Commercialized
ROFLUMILAST ACCORD 500 MICROGRAMOS COMPRIMIDOS RECUBIERTOS CON PELICULA EFG
84968
COMPRIMIDO RECUBIERTO CON PELÍCULA
Medicamento Sujeto A Prescripción Médica
Not Commercialized
DAXAS 500 MICROGRAMOS COMPRIMIDOS RECUBIERTOS CON PELICULA
10636002
COMPRIMIDO RECUBIERTO CON PELÍCULA
Medicamento Sujeto A Prescripción Médica
Commercialized

Philippines FDA Drug Approvals

Approved Product
Company
License Number
Dosage Form
Strength
Approval Date
No Philippines FDA approvals found for this drug.

Saudi SFDA Drug Approvals

Approved Product
Company
License Number
Dosage Form
Strength
Approval Date
No Saudi SFDA approvals found for this drug.

Malaysia NPRA Drug Approvals

Approved Product
Company
Registration Number
Dosage Form
Strength
Approval Date
No Malaysia NPRA approvals found for this drug.

UK EMC Drug Information

Medicine Name
MA Holder
MA Number
Pharmaceutical Form
Active Ingredient
Authorization Date
No UK EMC drug information found for this drug.

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