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Clincal study to compare the therapeutic effects of two ointments with active substances betamethasone dipropionate and salicylic acid and of one ointment without active substance for patients with chronic stable plaque psoriasis

Double-blind, randomised clinical study comparing efficacy and safety of Betamethasone dipropionate 0.64 mg/g _ Salicylic acid 30 mg/g Ointment (Test) vs. Diprosalic(R) Ointment (Reference) vs. Vehicle in patients with chronic stable plaque psoriasis

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2020-004081-19-DE
Enrollment
306
Registered
2021-08-13
Start date
2021-12-22
Completion date
Unknown
Last updated
2024-08-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic stable plaque psoriasis MedDRA version: 20.0 Level: LLT Classification code 10050576 Term: Psoriasis vulgaris System Organ Class: 10040785 - Skin and subcutaneous tissue disorders

Interventions

Product Name: Betamethasone dipropionate 0.64 mg/g _Salicylic acid 30 mg/g Pharmaceutical Form: Ointment INN or Proposed INN: Betamethasone Dipropionate CAS Number: 5593-20-4 Current Sponsor code: n.

Sponsors

Dermapharm AG
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - Women and men = 18 years of age - Written consent to study participation after patient information by the investigator - Clinical diagnosis of chronic stable (at least 6 months) plaque psoriasis amenable to topical treatment and involving arms and/or legs and/or trunk - Psoriasis affecting = 10% of the total body surface area (BSA) - A modified PASI score of = 5 to = 15 at baseline - For women of childbearing potential: Application of an efficient contraceptive method during the whole study - For women of childbearing potential: Pregnancy test with negative result prior to study start Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: • Current diagnosis of unstable forms of psoriasis including guttate, erythrodermic, exfoliative or pustular psoriasis • Systemic therapy of psoriasis within the last 4 weeks before study inclusion and during the study • Use of topical anti-psoriatic therapy (including topical retinoids, topical corticosteroids, vitamin D analogues, salicylic acid, dithranol, coal tar) within two weeks prior study inclusion • Known intolerance or hypersensitivity against salicylic acid, betamethasone dipropionate or other glucocorticoids or any of the other ingredients in the study medication • History of psoriasis unresponsive to topical treatment • Current or past history of renal insufficiency or severe hepatic disorders • Presence of any of the following skin conditions in the treatment area: viral infections (e.g. herpes simplex, herpes zoster, varicella), fungal and bacterial skin infections, parasitic infections, skin manifestations in relation to tuberculosis, perioral dermatitis, atrophic skin, striae atrophicae, fragility of skin veins, ichthyosis, acne vulgaris, acne rosacea, rosacea, ulcers, wounds and vaccination reactions • Other inflammatory skin disease in the treatment area that may confound the evaluation of the stable plaque psoriasis (e.g. atopic dermatitis, contact dermatitis, tinea corporis) • Presence of pigmentation, extensive scarring, pigmented lesions or sunburn in the treatment area, which could interfere with the rating of efficacy and safety parameters • Other severe acute or chronic concomitant disease with severe impairment of the general condition • Other concomitant diseases which may - taking the present knowledge into account - influence the parameters evaluated in the study in a way that an objective evaluation would be impossible • Other concomitant medication which may - taking the present knowledge into account - influence the methods of measurement used in this study or the resulting data • Reasonable doubt concerning the co-operation of the patient • Participation in another clinical study within the last 30 days prior to inclusion in this study • Participation in this study at an earlier date • Women with existing or intended pregnancy or during lactation

Design outcomes

Primary

MeasureTime frame
Main Objective: Evaluation of the efficacy and safety of a new ointment containing 0.64 mg/g Betamethasone dipropionate and 30 mg/g Salicylic acid vs. the originator Diprosalic(R) ointment (Reference) vs. vehicle in patients with chronic stable plaque psoriasis;Secondary Objective: see E5 (endpoints);Primary end point(s): Primary efficacy endpoint to be analyses is the percent change of a modified Psoriasis Area and Severity Index (mPASI) ("excluding the head") between start of treatment (Visit 1) and end of treatment (EoT, Visit 4);Timepoint(s) of evaluation of this end point: Start of therapy (Visit 1) and end of therapy (Visit 4)

Secondary

MeasureTime frame
Secondary end point(s): - Percent change of the total body surface area (BSA) affected by psoriasis between visits. - Course of the individual Psoriasis activity parameters erythema, desquamation and induration at Visit 0, Visit 1, Visit 2, Visit 3 and Visit 4, respectively. - Course of the individual Psoriasis area scores separately for each body part at Visit 0, Visit 1, Visit 2, Visit 3 and Visit 4 respectively. - Percent change of the modified Psoriasis Area and Severity Index (mPASI) between visits. - Reduction in modified PASI score of >75% between Visit 1 (Day 0) and Visit 4 (EoT). - Reduction in modified PASI score of >50% between Visit 1 (Day 0) and Visit 4 (EoT). - Change of the Investigator`s Global Assessment (IGA) between each visit. - Change of the Patient`s Psoriasis Global Assessment (PPGA) between each visit. - Controlled disease (defines as "clear" or "almost clear") according to the IGA at Visit 4. - Controlled disease (defined as "clear" or "almost clear") according to the PPGA at Visit 4. - Number and classification of advere events - Evaluation of tolerability by the investigator and by the patient at Visit 2 - Visit 4 - Hemic and clinical chemistry parameters (haemoglobin, haematocrit, erythrocytes, leukocytes, thrombocytes, sodium, potassium, creatinine, bilirubin, glucose, sGOT, SGPT, gamma-GT and cortisol) at screening visit (Visit 0) and EoT (Visit 4) - Change in the serum cortisol level from screening visit (Visit 0) to end of week 3 (EoT; Visit 4) ;Timepoint(s) of evaluation of this end point: Depends on the secondary endpoint, see E5.2 above

Countries

Germany

Contacts

Public ContactClinical Research Department

Dermapharm AG

Clinicaltrials.Dermapharm@dermapharm.com004989641860

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026