A study to evaluate the efficacy and safety of Clascoterone solution in treatment of male pattern hair loss.

2023-504421-39-00 Protocol CB-03-01/38 Therapeutic confirmatory (Phase III) Ended

Start 21 Nov 2023 · End 17 Jul 2025 · Status Ended · 2 EU/EEA countries · 16 sites · Protocol CB-03-01/38

Overview

Sponsor-declared trial summary

Phase Therapeutic confirmatory (Phase III)
Status Ended
Participants planned 929
Countries 2
Sites 16

Androgenetic Alopecia

Pivotal, Double-Blind – Part 1: The objective of the first 6 months of study is to evaluate the efficacy and safety of Clascoterone solution BID dosing compared to the vehicle solution BID for the treatment of androgenetic alopecia (AGA) in adult males.

Key facts

Sponsor
Cassiopea S.p.A., Cassiopea S.p.A.
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male
Therapeutic area
Diseases [C] - Skin and Connective Tissue Diseases [C17]
Trial duration
21 Nov 2023 → 17 Jul 2025
Decision date (initial)
2023-10-30
Transition trial
No
Low-intervention
No
Rare-disease indication
No
Vulnerable population
No
Funding sources
Cassiopea S.p.A.

External identifiers

EU CT number
2023-504421-39-00
ClinicalTrials.gov
NCT05914805

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Efficacy, Safety

Pivotal, Double-Blind – Part 1: The objective of the first 6 months of study is to evaluate the efficacy and safety of Clascoterone solution BID dosing compared to the vehicle solution BID for the treatment of androgenetic alopecia (AGA) in adult males.

Conditions and MedDRA coding

Androgenetic Alopecia

VersionLevelCodeTermSystem organ class
21.1 PT 10068168 Androgenetic alopecia 100000004858

Study design 2 periods

#TitleAllocationBlindingRoles blindedArms
1 Part 1 - Pivotal, Double-Blind
Multicenter, prospective, randomized, Double-Blind, vehicle-controlled interventional study with IMP: In this phase eligible subjects will be randomly assigned (2:1) (active versus vehicle) to one of the following two treatment arms: 1. Clascoterone 5% solution (1.5 ml = 75 mg of Clascoterone) BID 2. Vehicle solution BID All subjects will apply the assigned IMP to the balding areas of the scalp (vertex and temples) twice daily for up to 6 months.
Randomised Controlled Double [{"id":133190,"code":3,"name":"Monitor"},{"id":133191,"code":2,"name":"Investigator"},{"id":133192,"code":1,"name":"Subject"}] Experimental: Clascoterone: Subjects treated for 6 months with Clascoterone 5% solution.
Drug: Clascoterone 5% solution
Topical application of 1.5 ml of clascoterone solution 5%, twice a day, to balding areas of the scalp (vertex and temples)
Other names:
CB-03-01 5% solution
Placebo Comparator: Vehicle: Subjects treated for 6 months with Vehicle
Drug: Vehicle solution
Topical application of 1.5 ml of vehicle, twice a day, to balding areas of the scalp (vertex and temples)
Other names:
Vehicle
2 Part 2 - Extension, Single-Blind study
Subjects who will have completed Pivotal, Double-Blind – Part I of the trial and have been defined as Part 1 responders, will be randomly assigned (2:1) (active versus vehicle) to one of the following two treatment groups: 1. Clascoterone 5% solution (1.5 ml = 75 mg of Clascoterone) BID 2. Vehicle solution BID All subjects will apply the assigned IMP to the balding areas of the scalp (vertex and temples) twice daily for up to additional 6 months.
Randomised Controlled Single [{"id":133194,"code":1,"name":"Subject"}] Experimental: Clascoterone: Subjects treated for 6 months with Clascoterone 5% solution.
Drug: Clascoterone 5% solution
Topical application of 1.5 ml of clascoterone solution 5%, twice a day, to balding areas of the scalp (vertex and temples)
Other names:
CB-03-01 5% solution
Placebo Comparator: Vehicle: Subjects treated for 6 months with Vehicle
Drug: Vehicle solution
Topical application of 1.5 ml of vehicle, twice a day, to balding areas of the scalp (vertex and temples)
Other names:
Vehicle

Regulatory references

Plan to share IPD
No
EU CT numberTitleSponsor
2019-000950-78 A Phase 2, multicenter, prospective, randomized, double-blind, Minoxidil and vehicle controlled, dose-ranging study to evaluate the efficacy and safety of CB-03-01 (Cortexolone 17α-propionate) solution for the treatment of androgenetic alopecia in females, Eine multizentrische, prospektive, randomisierte, doppelblinde, Minoxidil- und vehikelkontrollierte Dosisfindungsstudie der Phase II zur Beurteilung der Wirksamkeit und Sicherheit von CB 03 01 (Cortexolon 17α-Propionat)-Lösung zur Behandlung der weiblichen androgenetischen Alopezie
2016-003733-23 A PHASE 2, MULTICENTER, PROSPECTIVE, RANDOMIZED, DOUBLE-BLIND, VEHICLE-CONTROLLED, DOSE-RANGING STUDY TO EVALUATE THE EFFICACY AND SAFETY OF CB 03 01 (CORTEXOLONE 17α-PROPIONATE) SOLUTION FOR THE TREATMENT OF ANDROGENETIC ALOPECIA IN MALES

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 8

  1. Subject who is male ≥18 years old.
  2. Subject who has provided written informed consent.
  3. Subject who has mild to moderate AGA in temple and vertex region, rating III vertex to V on the Modified Norwood-Hamilton Scale (i.e., III vertex [IIIv], IV, or V), with a history of ongoing hair loss.
  4. Subject who is willing to maintain the same hairstyle, hair length and hair color throughout the study.
  5. Subject who is willing to comply with study instructions at home and return to the clinic for required visits.
  6. Subject who agrees to continue his shampoo frequency and other general hair care products and regimen for the entire study.
  7. Subject who agrees to maintain same dietary and supplement pattern.
  8. Subjects who are sexually active with a female partner and are not surgically sterile (vasectomy performed at least 6 months prior to treatment) must agree to use an acceptable form of birth control as described in the informed consent form. For subjects, adequate forms of contraception include condom and spermicide in combination with other forms of female contraception. For females, an acceptable method (Pearl Index <1%) would be to agree to use implants, injectables, combined oral contraceptives, some intrauterine devices, or be postmenopausal (defined as amenorrhea greater than 12 consecutive months in women 50 years of age or older), be surgically sterile (hysterectomy, bilateral tubal ligation [at least 6 months prior], or bilateral oophorectomy).

Exclusion criteria 18

  1. Subject who has any dermatological disorders of the scalp in the target region with the possibility of interfering with the application of the IMP or examination method, such as fungal or bacterial infections, seborrheic dermatitis, psoriasis, eczema, folliculitis, scars, or scalp atrophy.
  2. Subject who has any skin pathology or condition that, in the investigator’s opinion, could interfere with the evaluation of the IMP or requires use of interfering topical, systemic (e.g., uncontrolled thyroid disease, certain genetic disorders that involve hair growth or patterns), or surgical therapy.
  3. Subject who has current or recent history (within 6 months) of hair weaves, non-breathable wigs, or hair bonding.
  4. Subject who had scalp hair transplants at any time.
  5. Subject with a history of active hair loss due to diffuse telogen effluvium, alopecia areata, scarring alopecia, trichotillomania, or conditions/diseases other than AGA.
  6. Subject who has a current or recent history (within 6 months) of severe dietary or weight changes or has a history of eating disorder(s), any history of bariatric surgery (gastric bypass, gastric sleeve, stomach stapling); macro- or micro-nutrient deficiencies within the last 6 months (i.e.: clinically significant iron deficiency, protein deficiency confirmed by lab testing) and/or any current diagnosis of malabsorptive disease (i.e.: Celiac, Irritable Bowel disease etc.).
  7. Subject who has any condition which, in the investigator’s opinion, would make it unsafe for the subject to participate in this study, including 12-lead electrocardiogram (ECG) findings during the screening period.
  8. Subject is currently enrolled in an investigational drug or device study.
  9. Subject who has used an investigational drug or investigational device treatment within 30 days or 5 half-lives whichever is longer prior to Visit 2/Baseline.
  10. Subject who is unable to communicate or cooperate with the investigator due to language problems, poor mental development, or impaired cerebral function.
  11. Subject who has used or is suspected, in the investigator’s opinion, to be using anabolic steroids.
  12. Subject who may be unreliable for the study, including subjects who engage in excessive alcohol intake or drug abuse, and/or subjects who will be unable to return for scheduled follow-up visits.
  13. Subject who has a known hypersensitivity or previous allergic reaction to any of the active or inactive ingredients in the IMPs or tattoo ink.
  14. Subject who has used any of the following topical preparations or procedures on the scalp: a) Topical scalp treatments for hair growth including minoxidil, Aminexil, hormone therapy, anti-androgens, or other agents that are known to affect hair growth within 12 weeks of Visit 2/Baseline. b) Topical scalp over-the-counter (OTC) or cosmetic treatments known or reasonably believed to affect hair growth (e.g., brands such as Maxilene, Nioxin, Foltene, etc.) or hair health or hair growth products with saw palmetto, copper, etc. within 2 weeks of Visit 2/Baseline. c) Topical scalp treatments that may have ancillary effect on hair growth including, but not limited to, corticosteroids, pimecrolimus, tacrolimus, and retinoids within 4 weeks of Visit 2/Baseline. d) Scalp procedures (surgical, laser, light, or energy treatments, micro- needling, etc.) within 6 months of Visit 2/Baseline. e) Platelet rich plasma (PRP) procedure on the scalp within 6 months of Visit 2/Baseline.
  15. Subject who has used one or more of the following systemic medications or procedures: a) Beta blockers, cimetidine, diazoxide, or corticosteroids (including intramuscular and intralesional injections) within 12 weeks of Visit 2/Baseline. Inhaled, intranasal, or ocular corticosteroids are allowed if use is stable [defined as doses and frequency unchanged for at least 4 weeks prior to Visit 2/Baseline]. b) Retinoid, isotretinoin, vitamin A intake above 10,000 IU per day, or cyclosporine therapy within 6 months of Visit 2/Baseline. c) Any 5 alpha reductase medications (i.e.: Finasteride [Propecia®, etc.], Dutasteride or similar products within 6 months of Visit 2/Baseline. d) Chemotherapy or cytotoxic agents at any time. e) Radiation of the scalp at any time point. f) Other systemic therapy, which in the opinion of the investigator, may materially affect the subject’s hair or hair growth, including, but not limited to, spironolactone, vitamin or homeopathy supplement hair growth or hair health products or other steroid hormones (in any form), including anabolic steroids during the 3 months prior to baseline or during the study.
  16. Subject who has been previously enrolled in any study with Clascoterone (former CB-03-01).
  17. Subject who is an employee or direct relative of an employee of the contract research organization (CRO), the study site, or the Sponsor.
  18. Subject who is institutionalized because of legal or regulatory order.

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. Co-Primary Efficacy Endpoints: Changes from Pivotal Part 1 Baseline in non-vellus TAHC at Month 6. / Subject’s assessment of own hair coverage at Month 6, defined as the proportion of MAA-PRO core measure item 2 responder at Month 6.

Secondary endpoints 1

  1. 1) Changes from Pivotal Part 1 Baseline in non-vellus TAHC at Month 3. 2) Changes in MAA-PRO SI single treatment satisfaction item (item 15) score at Month 6.

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 1

Clascoterone Solution

PRD10496704 · Product

Active substance
Clascoterone
Pharmaceutical form
CUTANEOUS SOLUTION
Route of administration
TOPICAL ADMINISTRATION
Max daily dose
150 mg milligram(s)
Max total dose
55.05 mg milligram(s)
Max treatment duration
367 Day(s)
Authorisation status
Not Authorised
MA holder
CASSIOPEA S.P.A.
Paediatric formulation
No
Orphan designation
No

Placebo 1

Vehicle solution

N/A · Product

Other product name
N/A
Pharmaceutical form
N/A
ATC code
N/A — N/A
Marketing authorisation
N/A
MA holder
N/A
MA country
Iceland
Paediatric formulation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Cassiopea S.p.A.

Sponsor organisation
Cassiopea S.p.A.
Address
Via Cristoforo Colombo 1
City
Lainate
Postcode
20045
Country
Italy

Scientific contact point

Organisation
Cassiopea S.p.A.
Contact name
Clinical Project Manager

Public contact point

Organisation
Cassiopea S.p.A.
Contact name
Clinical Project Manager

Third parties 7

OrganisationCity, countryDuties
Krystelis Limited
ORG-100045945
Reading, United Kingdom Other
Canfield Scientific Inc.
ORG-100042834
Parsippany, United States Other
Pharmapace Inc. a WuXi AppTec Company
ORL-000001540
San Diego, United States Other
Cosmo S.p.A.
ORG-100014657
Lainate, Italy Other
Ergomed PLC
ORG-100040911
Guildford, United Kingdom On site monitoring, Code 12, Code 13, Code 14, Code 2, Code 5, Code 8
Icon Clinical Research Limited
ORG-100008322
Dublin 18, Ireland Other
Eresearchtechnology Inc.
ORG-100013039
Philadelphia, United States Other

Cassiopea S.p.A.

Sponsor organisation
Cassiopea S.p.A.
Address
Via Cristoforo Colombo 1
City
Lainate
Postcode
20020
Country
Italy

Scientific contact point

Organisation
Cassiopea S.p.A.
Contact name
Clinical Operation Manager

Public contact point

Organisation
Cassiopea S.p.A.
Contact name
Clinical Operation Manager

Third parties 7

OrganisationCity, countryDuties
Krystelis Limited
ORG-100045945
Reading, United Kingdom Other
Cosmo S.p.A.
ORG-100014657
Lainate, Italy Other
Eresearchtechnology Inc.
ORG-100013039
Philadelphia, United States Other
Ergomed PLC
ORG-100040911
Guildford, United Kingdom On site monitoring, Code 12, Code 13, Code 14, Code 2, Code 5, Code 8
Pharmapace Inc. a WuXi AppTec Company
ORL-000001540
San Diego, United States Other
Icon Clinical Research Limited
ORG-100008322
Dublin 18, Ireland Other
Canfield Scientific Inc.
ORG-100042834
Parsippany, United States Other

Locations

2 EU/EEA countries · 16 investigational sites

By country

CountryMS statusPlanned subjectsSites
Germany Ended 376 7
Poland Ended 253 9
Rest of world
United States
300

Investigational sites

Germany

7 sites · Ended
Charite Universitaetsmedizin Berlin KöR
Department of dermatology, venerology and allergology, Chariteplatz 1, Mitte, Berlin
Privatpraxis Dr. Hilton & Partner
Dermatology, venerology, Grünstrasse 6, 40212, Düsseldorf
Privatpraxis für Dermatologie
N/A, Kaiser-Joseph-Str. 262, 79098, Freiburg
Eurofins bioskin GmbH
Research Center Dermatology, Messberg 4, Hamburg-Altstadt, Hamburg
Hautmedizin Bad Soden Studienzentrum GmbH
Hautmedizin Bad Soden Studienzentrum GmbH, Kronberger Strasse 36a, 65812, Bad Soden Am Taunus
Hautklinik und Poliklinik der Universitätsmedizin der Johannes Gutenberg-Universität Mainz
Department of Dermatology, Langenbeckstr. 1, Gebäude 401, Mainz
Emovis GmbH
Dedicated study site, Bezirk Charlottenburg Wilmersdorf, Wilmersdorfer Strasse 79, Berlin

Poland

9 sites · Ended
Diamond Clinic Sp. z o.o.
Diamond Medical Center, Ul. Stefana Rogozinskiego 6/u3, 31-559, Cracow
Centrum Nowoczesnych Terapii Dobry Lekarz Sp. z o.o.
Not applicable, Plac Szczepanski 3, 31-011, Cracow
Centrum Medyczne Kuba-Med 2 Sp. z o.o.
Not applicable, Ul. Wladyslawa Kunickiego 26a, 20-412, Lublin
Provita Sp. z o.o.
Dermatology, Ul. Fabryczna 13d, 40-611, Katowice
Narodowy Instytut Geriatrii Reumatologii I Rehabilitacji Im Prof. Dr Hab. Med. Eleonory Reicher
Not applicable, Ul. Spartanska 1, 02-637, Warsaw
Carpe Diem Centrum Medycyny Estetycznej
Not applicable, Ul. Ulica Wita Stwosza 48 Lok. 110, 02-661, Warsaw
Pratia S.A.
Not applicable, Ul. Dabrowki 13, 40-081, Katowice
Centrum Medyczne All-Med Badania Kliniczne
Not applicable, Ul. Henryka Sienkiewicza 23, 30-033, Cracow
Dermoklinika-Medyczne Centrum s.c. M.Kierstan J.Narbutt A.Lesiak
Not applicable, Al. Tadeusza Kosciuszki 93, 90-436, Lodz

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Germany 2023-11-24 2025-06-16 2023-11-25 2024-04-30
Poland 2023-11-21 2025-07-16 2023-12-20 2024-04-30

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 40 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1_Protocol_2023-504421-39-00_for publication 4.0
Recruitment arrangements (for publication) K1_Recruitment arrangements NA
Recruitment arrangements (for publication) K1_Recruitment arrangements_pl_PL 2
Recruitment arrangements (for publication) K2_Advertisement_Notice board_Poster_Newsp_DEU 1.0
Recruitment arrangements (for publication) K2_Advertisement_Notice board_Poster_Newsp_POL 1.0
Recruitment arrangements (for publication) K2_Advertisement_Notice board_Website_DEU 1.0
Recruitment arrangements (for publication) K2_Advertisement_Notice board_Website_POL 1.0
Recruitment arrangements (for publication) K2_Advertisement_Small postcard_DEU 1.0
Recruitment arrangements (for publication) K2_Advertisement_Small postcard_POL 1.0
Recruitment arrangements (for publication) K2_Advertisement_Social media_short_DEU 1.0
Recruitment arrangements (for publication) K2_Advertisement_Social media_short_POL 1.0
Recruitment arrangements (for publication) K2_Advertisement_Website_short_DEU 1.0
Recruitment arrangements (for publication) K2_Advertisement_Website_short_POL 1.0
Recruitment arrangements (for publication) K2_Site_27607_Advertisement_Recruitment text_DEU 1.4
Subject information and informed consent form (for publication) L1_SIS and ICF_DEU 2.2
Subject information and informed consent form (for publication) L1_SIS and ICF_DEU 2.3
Subject information and informed consent form (for publication) L1_SIS and ICF_DEU_ICF Addendum 1.1
Subject information and informed consent form (for publication) L1_SIS and ICF_POL 2.2
Subject information and informed consent form (for publication) L2_AGA-PRO questionnaire_DEU_Redacted 2.0
Subject information and informed consent form (for publication) L2_Cosmetic Evaluation Questions_DEU_Redacted 2
Subject information and informed consent form (for publication) L2_Cosmetic Evaluation Questions_POL_redacted 2
Subject information and informed consent form (for publication) L2_IMP Instructions_Diary_V2_DEU 1.0
Subject information and informed consent form (for publication) L2_IMP Instructions_Diary_V2_POL 1.0
Subject information and informed consent form (for publication) L2_IMP Instructions_Diary_V5_DEU 1.0
Subject information and informed consent form (for publication) L2_IMP Instructions_Diary_V5_POL 1.0
Subject information and informed consent form (for publication) L2_IMP Instructions_Diary_V7_DEU 1.0
Subject information and informed consent form (for publication) L2_IMP Instructions_Diary_V7_POL 1.0
Subject information and informed consent form (for publication) L2_IMP Instructions_Diary_V8_DEU 1.0
Subject information and informed consent form (for publication) L2_IMP Instructions_Diary_V8_POL 1.0
Subject information and informed consent form (for publication) L2_MAA-PRO questionnaire_POL_redacted TS2.0
Subject information and informed consent form (for publication) L2_Patient ID Card_DEU 1.1
Subject information and informed consent form (for publication) L2_Patient ID Card_POL 1
Subject information and informed consent form (for publication) L2_SubQuestionComplLog_DEU 1.0
Subject information and informed consent form (for publication) L2_SubQuestionComplLog_POL 1.0
Synopsis of the protocol (for publication) D1_Protocol Synopsis_Layperson_2023-504421-39-00_DEU_for publication 1.0
Synopsis of the protocol (for publication) D1_Protocol Synopsis_Layperson_2023-504421-39-00_EN_for publication 1.0
Synopsis of the protocol (for publication) D1_Protocol Synopsis_Layperson_2023-504421-39-00_POL_for publication 1.0
Synopsis of the protocol (for publication) D1_Protocol Synopsis_Scientific_2023-504421-39-00_DEU_for publication 4.0
Synopsis of the protocol (for publication) D1_Protocol Synopsis_Scientific_2023-504421-39-00_EN_for publication 4.0
Synopsis of the protocol (for publication) D1_Protocol Synopsis_Scientific_2023-504421-39-00_POL_for publication 4.0

Application history

9 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2023-07-19 Germany Acceptable
2023-10-30
2023-10-30
2 NON SUBSTANTIAL MODIFICATION NSM-1 2024-01-17 Germany Acceptable
2023-10-30
2024-01-17
3 NON SUBSTANTIAL MODIFICATION NSM-2 2024-02-22 Germany Acceptable
2023-10-30
2024-02-22
4 NON SUBSTANTIAL MODIFICATION NSM-6 2024-05-06 Germany Acceptable
2023-10-30
2024-05-06
5 NON SUBSTANTIAL MODIFICATION NSM-7 2024-07-12 Germany Acceptable
2023-10-30
2024-07-12
6 NON SUBSTANTIAL MODIFICATION NSM-8 2024-11-21 Germany Acceptable
2023-10-30
2024-11-21
7 NON SUBSTANTIAL MODIFICATION NSM-9 2024-12-17 Germany Acceptable
2023-10-30
2024-12-17
8 SUBSTANTIAL MODIFICATION SM-1 2025-06-13
9 SUBSTANTIAL MODIFICATION SM-2 2025-07-01 Germany Acceptable
2025-08-12
2025-08-13