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  5. Upcoming Product-Specific Guidances for Generic Drug Product Development
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Upcoming Product-Specific Guidances for Generic Drug Product Development

Introduction

This web page provides information related to upcoming new and revised product-specific guidances (PSGs) to support the development and approval of safe and effective generic drug products, including the projected date of PSG publication, as a commitment under the Generic Drug User Fee Amendments of 2022 (GDUFA III). Upcoming PSGs for both complex and non-complex products that are planned to be published in the next 12 months are listed (these may be subject to change).

How often does FDA publish new and revised PSGs?

To support generic drug development and generic drug approval, FDA issues new and revised PSGs on a quarterly and as needed basis. These PSGs, including PSGs for both complex and non-complex generic drug products, when finalized, describe the agency's current thinking and expectations on how to develop generic drug products to specific reference listed drugs and are intended to assist the generic pharmaceutical industry with identifying the most appropriate methodology and evidence needed to support a specific generic drug’s approval. The published PSGs are announced in the Federal Register and made available to the public on FDA’s website.

What information is provided on this web page?

For new PSGs for generic drug products under development, this web page provides information on the active ingredient(s), the route of administration and dosage form, the reference listed drug (RLD) application number, and the planned publication month/year. In addition to this information, the list of PSGs for generic products under revision also includes the planned revision categories and brief descriptions. This web page describes FDA’s plans for issuing new and revised PSGs for both complex and non-complex generic drug products.

What do the different planned revision categories mean?

For revised PSGs, the planned revision categories briefly describe the nature of the anticipated revisions. Planned revision categories are defined as the following:

  • Critical revision: PSG revision includes additional bioequivalence (BE) study(ies) or evidence recommended that is necessary to establish BE and support FDA approval reflecting a change in the safety or effectiveness of the drug product. The critical revision has a potential impact on all ANDAs including the approved applications. Holders of approved applications are also expected to address the change in the safety or effectiveness of the drug product reflected in a critical revision to maintain its FDA approval.
  • Major revision: PSG revision includes additional BE study(ies) or evidence recommended that is necessary to establish BE and support FDA approval. Major revisions are categorized as in vivo major revisions and in vitro major revisions. Under GDUFA III, applicants or prospective applicants may request PSG teleconference if they have already commenced an in vivo bioequivalence study (i.e., the study protocol has been signed by the study sponsor and/or the contract research organization) to obtain Agency feedback on the potential impact of the new or revised PSG on its development program. Pre-submission or post-submission PSG meetings may be requested following feedback received at the PSG teleconference.  Refer to GDUFA III Enhancements to the Pre-ANDA Program for additional details.
    • In vivo major revision: PSG revision includes additional in vivo bioequivalence study(ies) or evidence recommended to support FDA approval. 
    • In vitro major revision: PSG revision includes additional in vitro bioequivalence study(ies) or evidence recommended to support FDA approval.
  • Minor revision: Any revision to a PSG that is not considered critical or major, including but not limited to when a PSG is to be revised to add an in vivo or in vitro BE option, to clarify recommended study design, to certain study(ies), to provide alternative (less burdensome) approaches to the currently recommended study(ies), to add information on newly approved strengths of the RLD, or to make other recommendations that would not generally result in additional recommended bioequivalence study(ies) or evidence by an ANDA applicant necessary to support FDA approval.  Minor revisions include both in vivo and in vitro changes.
  • Editorial revision: PSG revision includes non-substantive changes such as updating external references, correcting grammatical issues, and streamlining the format of existing recommendations.

FDA will also provide specific information on the planned revision when such information is available for public release.

What is a complex generic drug product?

As described in the GDUFA III Commitment Letter and Classifying Approved New Drug Products and Drug-device Combination Products as Complex Products for Generic Drug Development Purposes (MAPP 5240.10), a complex generic drug product generally means the following:

  • A product with:
    • a complex active ingredient(s) (e.g., peptides, polymeric compounds, complex mixtures of APIs, naturally sourced ingredients)
    • a complex formulation (e.g., liposomes, colloids)
    • a complex route of delivery (e.g., locally acting drugs such as dermatological products and complex ophthalmological products and otic dosage forms that are formulated as suspensions, emulsions, or gels)
    • a complex dosage form (e.g., transdermals, metered dose inhalers, extended release injectables)
  • Complex drug-device combination products (e.g., auto injectors, metered dose inhalers); and
  • Other products where complexity or uncertainty concerning the approval pathway or possible alternative approaches would benefit from early scientific engagement. 

How often does FDA update this web page?

This web page will be updated each time FDA issues a new quarterly PSG batch. Each update removes the published PSGs and adds any new PSG under development or revision. This advance notice will help generic drug companies to plan for their development of generic drug products.  

New and Revised PSGs for Generic Drug Products

Below is the list of PSGs for both complex and non-complex generic drug products that FDA plans to issue and the list of PSGs that FDA plans to revise in the coming year. While this list reflects FDA’s effort to be transparent regarding current plans for developing PSGs for generic drug products, it should be noted that timing may be subject to change.

 

Planned New PSGs for Complex and Non-Complex
Generic Drug Products
Updated August 21, 2023

Active Ingredient(s) Route of Administration Dosage Form RLD or RS Application Number Product Complexity Planned Publication
Adagrasib Oral Tablet 216340 Non-Complex 02/2024
Air Polymer-Type A Intrauterine Foam 212279 Complex 08/2024
Amikacin Sulfate  Inhalation Suspension, Liposomal 207356 Complex 05/2024
Amoxicillin; Clarithromycin; Vonoprazan Fumarate Oral Capsule, Tablet, Tablet 215152 Non-Complex 11/2023
Amoxicillin; Vonoprazan Fumarate Oral Capsule, Tablet 215153 Non-Complex 11/2023
Aprepitant Intravenous Emulsion 216457 Complex 02/2024
Aripiprazole Oral Tablet 207202 Complex Within the next 12 months
Atorvastatin Calcium Oral Suspension 213260 Non-Complex 05/2024
Azacitidine Oral Tablet 214120 Non-Complex 11/2023
Baclofen Oral Granules 215422 Non-Complex 02/2024
Bexagliflozin Oral Tablet 214373 Non-Complex 05/2024
Budesonide; Formoterol Fumarate; Glycopyrrolate Inhalation Aerosol, Metered 212122 Complex 02/2024
Caffeine; Ergotamine Tartrate Rectal Suppository 009000 Complex 02/2024
Chlorhexidine Gluconate Topical Solution 017768 Non-Complex 11/2023
Cimetidine Oral Tablet 017920 Non-Complex 11/2023
Citalopram Hydrobromide Oral Capsule 215428 Non-Complex 11/2023
Clobetasol Propionate Topical Cream 209483 Complex Beyond 12 months
Daprodustat Oral Tablet 216951 Non-Complex 08/2024
Desmopressin Acetate Nasal Spray, Metered 201656 Complex 05/2024
Deucravacitinib  Oral Tablet 214958 Non-Complex 11/2023
Deutetrabenazine Oral Tablet, Extended Release 216354 Non-Complex 11/2023
Dextroamphetamine Transdermal System 215401 Complex 11/2023
Edaravone Oral Suspension 215446 Non-Complex 11/2023
Elacestrant Dihydrochloride Oral Tablet 217639 Non-Complex 05/2024
Elagolix Sodium, Estradiol, Norethindrone Acetate; Elagolix Sodium Oral Capsule 213388 Non-Complex 02/2024
Ferric Derisomaltose Intravenous Solution 208171 Complex Within the next 12 months
Ferric Pyrophosphate Citrate Intravenous Solution 212860 Complex 11/2023
Ferric Pyrophosphate Citrate Intravenous Solution 206317 Complex 11/2023
Ferric Pyrophosphate Citrate Intravenous For Solution 208551 Complex 11/2023
Finasteride; Tadalafil  Oral  Capsule  215423 Non-Complex 11/2023
Fingolimod Lauryl Sulfate Oral Tablet, Orally Disintegrating 214962 Non-Complex 11/2023
Fluticasone Propionate Nasal Spray, Metered 209022 Complex Beyond 12 months
Formoterol Fumarate; Glycopyrrolate Inhalation Aerosol, Metered 208294 Complex 11/2023
Furosemide Subcutaneous Solution 209988 Complex 11/2023
Futibatinib Oral Tablet 214801 Non-Complex 11/2023
Ganaxolone Oral Suspension 215904 Non-Complex 11/2023
Ganciclovir  Ophthalmic Gel 022211 Complex 05/2024
Glatiramer Acetate Subcutaneous For Solution 020622 Complex 11/2023
Glycopyrrolate; Neostigmine Methylsulfate Intravenous Solution 216903 Non-Complex 11/2023
Halobetasol Propionate; Tazarotene Topical Lotion 209354 Complex 11/2023
Lanreotide Acetate Subcutaneous Solution 215395 Complex Beyond 12 months
Latanoprost Ophthalmic Solution/Drops 216472 Non-Complex 11/2023
Lenacapavir Sodium Oral Tablet 215974 Non-Complex 02/2024
Leniolisib Phosphate Oral Tablet 217759 Non-Complex 08/2024
Levodopa Inhalation Powder 209184 Complex 02/2024
Levonorgestrel Intrauterine Intrauterine Device 208224 Complex Within the next 12 months
Lidocaine Hydrochloride Ophthalmic Gel 022221 Complex 05/2024
Lidocaine; Tetracaine Topical Patch 021623 Complex Beyond 12 months
Mannitol Inhalation Powder 022368 Complex 11/2023
Mannitol Inhalation Powder 202049 Complex 11/2023
Mitomycin Pyelocalyceal Powder 211728 Complex Beyond 12 months
Mometasone Furoate Implantation Implant 209310 Complex 02/2024
Niraparib Tosylate Oral  Tablet 214876 Non-Complex 02/2024
Olutasidenib Oral Capsule 215814 Non-Complex 02/2024
Omaveloxolone Oral Capsule 216718 Non-Complex 08/2024
Omidenepag Isopropyl Ophthalmic Solution 215092 Non-Complex 11/2023
Oxazepam Oral Capsule 015539 Non-Complex 05/2024
Oxymetazoline Hydrochloride Ophthalmic Solution/Drops 212520 Non-Complex Within the next 12 months
Patiromer Sorbitex Calcium Oral Powder 205739 Complex Within the next 12 months
Pegcetacoplan Subcutaneous Solution 215014 Complex Beyond 12 months
Pirtobrutinib Oral Tablet 216059 Non-Complex 05/2024
Risperidone Subcutaneous For Suspension, Extended Release 210655 Complex 11/2023
Rivaroxaban Oral For Suspension 215859 Non-Complex 11/2023
Semaglutide Subcutaneous Solution 215256 Complex 11/2023
Sodium Phenylbutyrate Oral For Suspension 214860 Non-Complex 02/2024
Sodium Phenylbutyrate  Oral Pellets 216513 Non-Complex 02/2024
Sodium Phenylbutyrate; Taurursodiol Oral For Suspension 216660 Non-Complex 02/2024
Soybean Oil Injection  Injectable 019942 Complex 11/2023
Sparsentan Oral Tablet 216403 Non-Complex 08/2024
Tapinarof Topical Cream 215272 Complex 11/2023
Testosterone Undecanoate Oral Capsule 213953 Non-Complex 02/2024
Tobramycin Inhalation Powder 201688 Complex 02/2024
Trofinetide Oral Solution 217026 Non-Complex 08/2024
Zanamivir Inhalation Powder 021036 Complex 11/2023

 

Planned Revised PSGs for Complex and Non-Complex
Generic Drug Products
Updated August 21, 2023

Active Ingredient(s) Route of Administration Dosage Form RLD or RS Application Planned Revision Category with Description Product Complexity Planned Publication
Acetaminophen; Butalbital Oral Capsule  088831 Minor Revision: Remove recommendation on a strength due to safety concerns  Non- Complex 02/2024
Aclidinium Bromide Inhalation Powder, Metered 202450 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Add recommendations for device comparisons
Complex 05/2024
Aclidinium Bromide; Formoterol Fumarate Inhalation Powder, Metered 210595 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 05/2024
Albuterol Sulfate Inhalation Powder, Metered 205636 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 05/2024
Albuterol Sulfate Inhalation Aerosol, Metered 020503, 020983, 021457 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 11/2023
Albuterol Sulfate; Ipratropium Bromide Inhalation Spray, Metered 021747 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 08/2024
Azelaic Acid Topical Gel 021470 Minor Revision: Add an in vitro BE option Complex 05/2024
Betamethasone Acetate; Betamethasone Sodium Phosphate Injection Injectable 014602 Editorial: Correct Typos

Minor:  Change in study design for in vivo BE study(ies); Add an in vitro BE option 


 
Complex 11/2023
Budesonide Inhalation Powder, Metered 021949 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Add recommendations for device comparisons
 
Complex 05/2024
Budesonide; Formoterol Fumarate Dihydrate Inhalation Aerosol, Metered 021929 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Add recommendations for device comparisons
Complex 11/2023
Doxepin Hydrochloride Oral Tablet 022036 Minor Revision: Reorganize to include all strengths within a single PSG; Add an in vitro BE option Non- Complex 02/2024
Emtricitabine; Tenofovir Alafenamide Fumarate Oral Tablet 208215 Minor Revision: Add information on newly approved (lower or middle) strengths of the RLD  Non- Complex 11/2023
Ferric Carboxymaltose Intravenous Solution 203565 Minor Revision: Add information on newly approved (lower or middle) strengths of the RLD/RS  Complex Within the next 12 months
Ferumoxytol Intravenous Solution 022180 Editorial Revision: Correct typos; Update the language

Minor Revision: Clarify in vivo study design
Complex Within the next 12 months
Fluorouracil Cream Topical 020985 Minor Revision: Add an in vitro BE option  Complex Beyond 12 months
Fluticasone Furoate Inhalation Powder 205625 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Add recommendations for device comparisons
Complex 02/2024
Fluticasone Furoate; Umeclidinium Bromide; Vilanterol Trifenatate Inhalation Powder 209482 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 02/2024
Fluticasone Furoate; Vilanterol Trifenatate Inhalation Powder 204275 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Add recommendations for device comparison
Complex 02/2024
Fluticasone Propionate Inhalation Aerosol, Metered 021433 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 11/2023
Fluticasone Propionate Inhalation Powder 020833 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 02/2024
Fluticasone Propionate Inhalation Powder 208798 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 05/2024
Fluticasone Propionate; Salmeterol Xinafoate Inhalation Aerosol, Metered 021254 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 11/2023
Fluticasone Propionate; Salmeterol Xinafoate Inhalation Powder 021077 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Add recommendations for device comparisons
Complex 02/2024
Fluticasone Propionate; Salmeterol Xinafoate Inhalation Powder 208799 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 05/2024
Fulvestrant Intramuscular Solution 021344 Editorial Revision: Update the language

Minor Revision:  Add recommendations for device comparisons
Non- Complex 11/2023
Gabapentin Oral Tablet 022544 In Vivo Major Revision: Add an in vivo study Non- Complex 11/2023
Glatiramer Acetate Subcutaneous Injectable 020622 Editorial Revision: Update the language

Minor Revision:  Add recommendations for device comparisons
Complex 11/2023
Lanreotide Acetate Subcutaneous Solution 022074 Editorial Revision: Update the language

Minor Revision: Add recommendations for device comparisons
Complex Beyond 12 months
Levalbuterol Tartrate Inhalation Aerosol, Metered 021730 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 11/2023
Levonorgestrel Intrauterine Intrauterine Device 203159  Minor Revision: Clarify in vivo and in vitro study designs; Add recommendations for device comparisons Complex Within the next 12 months
Mometasone Furoate Inhalation Aerosol, Metered 205641 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Add recommendations for device comparisons
Complex 11/2023
Mometasone Furoate Inhalation Powder 021067 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 05/2024
Naltrexone Intramuscular For Suspension, Extended Release 021897 Editorial Revision: Correct Typos

Minor Revision:  Add recommendations for device comparisons
Complex 11/2023
Olodaterol Hydrochloride Inhalation Spray, Metered 203108 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 08/2024
Olodaterol Hydrochloride; Tiotropium Bromide Inhalation Spray, Metered 206756 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 08/2024
Primidone Oral Tablet 009170 Minor Revision: Add information on newly approved (lower or middle) strengths of the RLD/RS Non- Complex 11/2023
Salmeterol Xinafoate Inhalation Powder 020692 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 02/2024
Semaglutide Subcutaneous Solution 209637 Minor Revision: Add recommendations for device comparisons Complex 11/2023
Sotorasib Oral Tablet 214665 In Vivo Major Revision: Change in study design for in vivo BE study(ies) Non- Complex 11/2023
Soybean Oil Injection Injectable 017643; 018449; 020248 Minor Revision: Add information on newly approved (lower or middle) strengths of the RLD/RS; Add recommendations for device comparisons Complex 11/2023
Soybean Oil Injection Injectable 019531  Minor Revision: Add recommendations for device comparisons Complex 11/2024
Tiotropium Bromide Inhalation Powder 021395 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 11/2023
Tiotropium Bromide Inhalation Spray, Metered 021936 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 08/2024
Umeclidinium Bromide Inhalation Powder 205382 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Add recommendations for device comparisons
Complex 02/2024
Umeclidinium Bromide; Vilanterol Trifenatate Inhalation Powder 203975 Editorial Revision: Update the language

Minor Revision: Clarify in vivo and in vitro study designs; Revise recommendations for device comparisons
Complex 02/2024
Vandetanib Oral Tablet 022405 In Vitro Major Revision: Add an in vitro study(ies) Non- Complex 02/2024
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