Taclonex

Taclonex

CLINICAL PHARMACOLOGY

Taclonex® (calcipotriene and betamethasone dipropionate) Ointment

Taclonex® (calcipotriene and betamethasone dipropionate) Ointment combines the pharmacological effects of calcipotriene hydrate and betamethasone dipropionate as described below.

In a vasoconstrictor study, the skin blanching response of Taclonex® (calcipotriene and betamethasone dipropionate) Ointment was consistent with that of a potent corticosteroid.

Calcipotriene

Pharmacokinetics: Calcipotriene metabolism following systemic uptake is rapid and occurs in the liver. The primary metabolites of calcipotriene are less potent than the parent compound.

Betamethasone dipropionate

Like other topical corticosteroids, betamethasone dipropionate has anti-inflammatory, antipruritic and vasoconstrictive properties. However, while the physiologic, pharmacologic, and clinical effects of the corticosteroids are well known, the exact mechanisms of their actions in psoriasis vulgaris are uncertain.

Pharmacokinetics: The extent of percutaneous absorption of topical corticosteroids is determined by many factors including the vehicle, the integrity of the epidermal barrier, and the use of occlusive dressings. Topical corticosteroids can be absorbed from normal intact skin. Inflammation and/or other disease processes in the skin may increase percutaneous absorption.

There are no human data regarding the distribution of corticosteroids to body organs following topical application. Nevertheless, once absorbed through the skin, topical corticosteroids are handled through pharmacokinetic pathways similar to systemically administered corticosteroids. Corticosteroids are metabolized primarily in the liver and are then excreted by the kidneys. In addition, some corticosteroids and their metabolites are also excreted in the bile.

Taclonex® (calcipotriene and betamethasone dipropionate) Ointment was applied once daily for 4 weeks to adult patients (N = 12) with psoriasis vulgaris to study its effects on the hypothalamic-pituitary-adrenal (HPA) axis. Of eleven patients tested, none demonstrated adrenal suppression as indicated by a 30-minute post-stimulation cortisol level ≤ 18 mcg/dL.

However in another clinical study of Taclonex® (calcipotriene and betamethasone dipropionate) Ointment, one subject (N = 19) demonstrated adrenal suppression.

Clinical Studies

In an international, multi-center, double-blind, vehicle- and active-controlled, parallel-group study, 1,603 patients with mild to very severe psoriasis vulgaris on trunk and limbs were treated once daily for 4 weeks. Patients were randomized to one of four treatment arms: Taclonex® (calcipotriene and betamethasone dipropionate) Ointment, calcipotriene hydrate 50 mcg/g in the same vehicle, betamethasone dipropionate 0.64 mg/g in the same vehicle, and vehicle alone. The mean age of the patients was 48.4 years and 60.5% were male. Most patients had disease of moderate severity at baseline.

Efficacy was assessed as the proportion of patients with absent or very mild disease according to the Investigator's Global Assessment of Disease Severity at end of treatment (4 weeks). “Absent” disease was defined as no evidence of redness, thickness, or scaling. “Very mild disease” was defined as controlled disease, but not entirely cleared: lesions with some discoloration with absolutely minimal thickness, i.e. the edges to the lesion(s) could just be felt.

PERCENTAGE OF PATIENTS WITH ABSENT OR VERY MILD DISEASE ACCORDING TO THE INVESTIGATOR'S GLOBAL ASSESSMENT OF DISEASE SEVERITY AT END OF TREATMENT (4 WEEKS)*.


  Taclonex® (calcipotriene and betamethasone dipropionate)
Ointment
N=490
Calcipotriene
N=480
Betamethasone
dipropionate
N=476
Vehicle
N=157
Absent or very mild disease 48.0% 16.5% 26.3% 7.6%
* Patients with mild disease at baseline were required to have “Absent” disease to be considered a success.

In addition to the pivotal study (N=490), four randomized, double-blind, vehicle-or active-controlled, parallel-group studies were conducted and provided supportive evidence of efficacy. These studies included a total of 1,058 patients treated with Taclonex® (calcipotriene and betamethasone dipropionate) Ointment once daily for up to 4 weeks.

Last reviewed on RxList: 10/17/2007
This monograph has been modified to include the generic and brand name in many instances.

A A A

Taclonex - User Reviews

Taclonex User Reviews

Now you can gain knowledge and insight about a drug treatment with Patient Discussions.

Here is a collection of user reviews for the medication Taclonex sorted by most helpful. Patient Discussions FAQs

Report Problems to the Food and Drug Administration

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


Women's Health

Find out what women really need.

Related Drugs
Health Resources
advertisement
advertisement
Use Pill Finder Find it Now See Interactions

Pill Identifier on RxList

  • quick, easy,
    pill identification

Find a Local Pharmacy

  • including 24 hour, pharmacies

Interaction Checker

  • Check potential drug interactions
Search the Medical Dictionary for Health Definitions & Medical Abbreviations