VEREGEN- sinecatechins ointment
PharmaDerm a division of Fougera Pharmaceuticals Inc.
HIGHLIGHTS OF PRESCRIBING INFORMATION
These highlights do not include all the information needed to use VEREGEN® safely and effectively. See full prescribing information for VEREGEN®.
Veregen® (sinecatechins) ointment, 15%, for topical use
Initial U.S. Approval: 2006
INDICATIONS AND USAGE
Veregen® is a topical ointment indicated for the treatment of external genital and perianal warts (Condylomata acuminata) in immunocompetent patients 18 years and older (1.1).
Limitations of Use
DOSAGE AND ADMINISTRATION
DOSAGE FORMS AND STRENGTHS
Ointment, 15% (3)
WARNINGS AND PRECAUTIONS
Most common adverse reactions are local skin and application site reactions including (incidence ≥ 20%) erythema, pruritus, burning, pain/discomfort, erosion/ulceration, edema, induration, and rash vesicular (6).
To report SUSPECTED ADVERSE REACTIONS, contact PharmaDerm®, A Division of Fougera Pharmaceuticals Inc. at 1-800-645-9833 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
See 17 for PATIENT COUNSELING INFORMATION and FDA-approved patient labeling.
FULL PRESCRIBING INFORMATION: CONTENTS *
Veregen® is indicated for the topical treatment of external genital and perianal warts (Condylomata acuminata) in immunocompetent patients 18 years and older.
Veregen® is to be applied three times per day to all external genital and perianal warts.
Apply about an 0.5 cm strand of the Veregen® to each wart using the finger(s), dabbing it on to ensure complete coverage and leaving a thin layer of the ointment on the warts. Patients should wash their hands before and after application of Veregen®.
It is not necessary to wash off the ointment from the treated area prior to the next application.
Veregen® is not for ophthalmic, oral, intravaginal, or intra-anal use.
Treatment with Veregen® should be continued until complete clearance of all warts, however no longer than 16 weeks.
Local skin reactions (e.g. erythema) at the treatment site are frequent. Nevertheless, treatment should be continued when the severity of the local skin reaction is acceptable.
Ointment, 15% w/w. Each gram of Veregen® Ointment, 15% contains 150 mg of sinecatechins in a brown ointment base.
Veregen® has not been evaluated for the treatment of urethral, intra-vaginal, cervical, rectal, or intra-anal human papilloma viral disease and should not be used for the treatment of these conditions.
Use of Veregen® on open wounds should be avoided.
Patients should be advised to avoid exposure of the genital and perianal area to sun/UV-light as Veregen® has not been tested under these circumstances.
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
In Phase 3 clinical trials, a total of 397 subjects received Veregen® three times per day topical application for the treatment of external genital and perianal warts for up to 16 weeks.
Serious local adverse events of pain and inflammation were reported in two subjects (0.5%), both women.
In clinical trials, the incidence of patients with local adverse events leading to discontinuation or dose interruption (reduction) was 5% (19/397). These included the following events: application site reactions (local pain, erythema, vesicles, skin erosion/ulceration), phimosis, inguinal lymphadenitis, urethral meatal stenosis, dysuria, genital herpes simplex, vulvitis, hypersensitivity, pruritus, pyodermitis, skin ulcer, erosions in the urethral meatus, and superinfection of warts and ulcers.
Local and regional reactions (including adenopathy) occurring at >1% in the treated groups are presented in Table 1.
(N = 397)
(N = 207)
A total of 266/397 (67%) of subjects in the Veregen® group had either a moderate or a severe reaction that was considered probably related to the drug, of which 120 (30%) subjects had a severe reaction. Severe reactions occurred in 37% (71/192) of women and in 24% (49/205) of men. The percentage of subjects with at least one severe, related adverse event was 26% (86/328) for subjects with genital warts only, 42% (19/45) in subjects with both genital and perianal warts and 48% (11/23) of subjects with perianal warts only.
Phimosis occurred in 3% of uncircumcised male subjects (5/174) treated with Veregen® and in 1% (1/99) in vehicle.
The maximum mean severity of erythema, erosion, edema, and induration was observed by week 2 of treatment.
Less common local adverse events included urethritis, perianal infection, pigmentation changes, dryness, eczema, hyperesthesia, necrosis, papules, and discoloration. Other less common adverse events included cervical dysplasia, pelvic pain, cutaneous facial rash, and staphylococcemia.
In a dermal sensitization study of Veregen® in healthy volunteers, hypersensitivity (type IV) was observed in 5 out of 209 subjects (2.4%) under occlusive conditions.
Pregnancy Category C:
There are no adequate and well controlled studies in pregnant women. Veregen® should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.
The Maximum Recommended Human Dose (MRHD) of Veregen® was set at three times daily topical administration of 250 mg, 750 mg total, containing 112.5 mg sinecatechins for the animal multiple of human exposure calculations presented in this labelling. Dose multiples were calculated based on the human equivalent dose (HED).
Embryo-fetal development studies were conducted in rats and rabbits using intravaginal and systemic routes of administration, respectively. Oral administration of sinecatechins during the period of organogenesis (gestational Days 6 to 15 in rats or 6 to 18 in rabbits) did not cause treatment related effects on embryo-fetal development or teratogenicity at doses of up to 1,000 mg/kg/day (86-fold MRHD in rats; 173-fold MRHD in rabbits).
In the presence of maternal toxicity (characterized by marked local irritation at the administration sites and decreased body weight and food consumption) in pregnant female rabbits, subcutaneous doses of 12 and 36 mg/kg/day of sinecatechins during the period of organogenesis (gestational Days 6 to 19) resulted in corresponding influences on fetal development including reduced fetal body weights and delays in skeletal ossification. No treatment related effects on embryo-fetal development were noted at 4 mg/kg/day (0.7-fold MRHD). There was no evidence of teratogenic effects at any of the doses evaluated in this study.
A combined fertility / embryo-fetal development study using daily vaginal administration of Veregen® to rats from Day 4 before mating and throughout mating until Day 17 of gestation did not show treatment-related effects on embryo-fetal development or teratogenicity at doses up to 0.15 mL/rat/day (8-fold MRHD).
A pre- and post-natal development study was conducted in rats using vaginal administration of Veregen® at doses of 0.05, 0.10 and 0.15 mL/rat/day from Day 6 of gestation through parturition and lactation. The high and intermediate dose levels of 0.15 (8-fold MRHD) and 0.10 mL/rat/day resulted in an increased mortality of the F0 dams, associated with indications of parturition complications. The high dose level of 0.15 mL/rat/day also resulted in an increased incidence of stillbirths. There were no other treatment-related effects on pre- and post-natal development, growth, reproduction and fertility at any dose tested.
Veregen® (sinecatechins) Ointment, 15% is a botanical drug product for topical use. The drug substance in Veregen® is sinecatechins, which is a partially purified fraction of the water extract of green tea leaves from Camellia sinensis (L.) O Kuntze, and is a mixture of catechins and other green tea components. Catechins constitute 85 to 95% (by weight) of the total drug substance which includes more than 55% of Epigallocatechin gallate (EGCg), other catechin derivatives such as Epicatechin (EC), Epigallocatechin (EGC), Epicatechin gallate (ECg), and some additional minor catechin derivatives i.e. Gallocatechin gallate (GCg), Gallocatechin (GC), Catechin gallate (Cg), and Catechin (C). In addition to the known catechin components, it also contains gallic acid, caffeine, and theobromine which together constitute about 2.5% of the drug substance. The remaining amount of the drug substance contains undefined botanical constituents derived from green tea leaves.
The structural formulae of catechins are shown below.
General Structure of Catechins
Each gram of the ointment contains 150 mg of sinecatechins in a water free ointment base consisting of isopropyl myristate, white petrolatum, cera alba (white wax), propylene glycol palmitostearate, and oleyl alcohol.
The mode of action of Veregen® involved in the clearance of genital and perianal warts is unknown. In vitro, sinecatechins had anti-oxidative activity; the clinical significance of this finding is unknown.
Systemic exposure to EGCg, EGC, ECg, and EC were evaluated following either topical application of Veregen® to subjects with external genital and perianal warts (250 mg applied 3 times a day for 7 days) or following oral ingestion of green tea beverage (500 mL ingested 3 times a day for 7 days). Following topical application of Veregen®, plasma concentration of all 4 catechins were below the limit of quantification (<5 ng/mL) on Day 1. After application of Veregen® for 7 days, plasma EGC, ECg, and EC concentrations were below the limit of quantification while plasma concentration of EGCg were measurable in 2 out of 20 subjects. The mean maximal plasma concentration (Cmax) of EGCg was 10.1 ng/mL and the mean area under the concentration versus time curve (AUC) of EGCg was 52.2 ng*h/mL in these 2 subjects. Oral ingestion of green tea beverage resulted in measurable concentration of EGCg in all subjects on both Day 1 and Day 7, with mean (SD) Cmax of 23.0 (12.0) ng/mL and AUC of 104.6 (39.0) ng*h/mL on Day 7.
In an oral (gavage) carcinogenicity study, sinecatechins was administered daily for 26 weeks to p53 transgenic mice at doses up to 500 mg/kg/day (22-fold MRHD; [see Use in Specific Populations (8.1)]). Treatment with sinecatechins was not associated with an increased incidence of either neoplastic or non-neoplastic lesions in the organs and tissues examined. Veregen® has not been evaluated in a dermal carcinogenicity study.
Sinecatechins was negative in the Ames test, in vivo rat micronucleus assay, UDS test, and transgenic mouse mutation assay, but positive in the mouse lymphoma mutation assay.
Daily vaginal administration of Veregen® to rats from Day 4 before mating and throughout mating until Day 17 of gestation did not cause adverse effects on mating performance and fertility at doses up to 0.15 mL/rat/day. This dose corresponds to approximately 150 mg/rat/day (8-fold MRHD).
Two randomized, double-blind, vehicle-controlled trials were performed to investigate the safety and efficacy of Veregen® in the treatment of immunocompetent subjects 18 years of age and older with external genital and perianal warts. The subjects applied the ointment 3 times daily for up to 16 weeks or until complete clearance of all warts (baseline and new warts occurring during treatment).
Over both trials the median baseline wart area was 51 mm2 (range 12 to 585 mm2), and the median baseline number of warts was 6 (range 2 to 30).
The primary efficacy outcome measure was the response rate defined as the proportion of subjects with complete clinical (visual) clearance of all external genital and perianal warts (baseline and new) by week 16, presented in Tables 2 and 3 for all randomized subjects dispensed medication.
(includes the United States)
|Veregen® 15% (N = 397)||213 (53.6%)|
|Vehicle (N = 207)||73 (35.3%)|
|Veregen® 15% (N = 21)||5 (23.8%)|
|Vehicle (N = 9)||0 (0.0%)|
|Veregen® 15% (N = 205)||97 (47.3%)|
|Vehicle (N = 118)||34 (28.8%)|
|Veregen® 15% (N = 192)||116 (60.4%)|
|Vehicle (N = 89)||39 (43.8%)|
Median time to complete wart clearance was 16 weeks and 10 weeks, respectively, in the two phase 3 clinical trials.
The rate of recurrence of external genital and perianal warts 12 weeks after completion of treatment in subjects with complete clearance is 6.8% (14/206) for those treated with Veregen® and 5.8% (4/69) for those treated with vehicle.
Veregen® is a brown ointment and is supplied in an aluminum tube containing 15 grams (NDC # 10337-450-15) of ointment per tube or 30 grams (NDC # 10337-450-03) of ointment per tube.
See FDA-approved patient labeling (Patient Information)
Patients using Veregen® should receive the following information and instructions:
Read this leaflet carefully before you start using Veregen® Ointment and each time you refill your prescription. There may be new information. This information does not take the place of your doctor’s advice. If you have any questions about Veregen® Ointment or your condition ask your doctor or pharmacist. Only your doctor can prescribe Veregen® and determine if it is right for you.
What is Veregen® Ointment?
Veregen® Ointment is a medicine for skin use only (topical) for the treatment of warts on the outside of the genitals and around the outside of the anus. It is not a treatment for warts in the vagina, cervix, or inside the anus. Your doctor may recommend examination and screening tests (such as a Pap smear) to evaluate these areas.
Who should not use Veregen® Ointment?
Do not use Veregen® Ointment if you are allergic to an ingredient in Veregen® Ointment. The list of ingredients is at the end of this leaflet.
What should I tell my doctor before using Veregen® Ointment?
Tell your doctor about all your health conditions and all the medicines you take including prescription, over-the-counter medicine, vitamins, supplements, and herbals. Be sure to tell your doctor if you are:
How should I use Veregen® Ointment?
What should I avoid while using Veregen® Ointment?
What are the possible side effects of Veregen® Ointment?
The most common side effects with Veregen® Ointment are local skin and application site reactions including:
Many patients experience itching, reddening or swelling on or around the application site during the course of treatment. Some of these side effects could be a sign of an allergic reaction. If you experience open sores or other severe reactions at the locations you applied Veregen® Ointment, stop treatment and call your doctor right away.
You may experience other side effects of Veregen® Ointment which are not mentioned here. Ask your doctor or pharmacist for more information.
Patients should be aware that new warts may develop during treatment as Veregen® Ointment is not a cure.
How should I store Veregen® Ointment?
Keep Veregen® Ointment and all medicines out of the reach of children.
General advice about prescription medicines
Medicines are sometimes prescribed for conditions that are not mentioned in patient information leaflets. Do not use Veregen® Ointment for a condition for which it was not prescribed. Do not give Veregen® Ointment to other people, even if they have the same symptoms you have. It may harm them. Do not use Veregen® Ointment after the expiration date on the tube.
This leaflet summarizes the most important information about Veregen® Ointment. If you would like more information, talk with your doctor. You can ask your pharmacist or doctor for information about Veregen® Ointment that is written for the doctor.
For more information, go to www.pharmaderm.com or call 1-800-645-9833.
What are the ingredients in Veregen® Ointment?
A defined green tea extract named sinecatechins.
Isopropyl myristate, white petrolatum, cera alba (white wax), propylene glycol palmitostearate, and oleyl alcohol.
Veregen® is a registered trademark of Medigene AG, D-82152 Planegg/Martinsried, Germany.
This Patient Information has been approved by the U.S. Food and Drug Administration
A division of Fougera Pharmaceuticals Inc.
Melville, New York 11747
C.P.M. Contract Pharma GmbH & Co. KG
Frühlingstrasse 7 D-83620 Feldkirchen-Westerham, Germany
U.S. Patent Nos. 5795911 and 5968973
|Labeler - PharmaDerm a division of Fougera Pharmaceuticals Inc. (043838424)|