CONDYLINE SOLUTION

Canada - English - Health Canada

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Active ingredient:
PODOPHYLLOTOXIN
Available from:
SANOFI-AVENTIS CANADA INC
ATC code:
D06BB04
INN (International Name):
PODOPHYLLOTOXIN
Dosage:
0.5%
Pharmaceutical form:
SOLUTION
Composition:
PODOPHYLLOTOXIN 0.5%
Administration route:
TOPICAL
Units in package:
3.5ML
Prescription type:
Prescription
Therapeutic area:
MISC. SKIN AND MUCOUS MEMBRANE AGENTS
Product summary:
Active ingredient group (AIG) number: 0123181001; AHFS: 84:92.00
Authorization status:
APPROVED
Authorization number:
01945149
Authorization date:
2012-01-16

Documents in other languages

PRODUCT MONOGRAPH

CONDYLINE

Podofilox Topical Solution 0.5%

Antimitotic Agent

sanofi-aventis Canada Inc.

2150 St. Elzear Blvd. West

Laval, Quebec H7L 4A8

Date of Preparation:

January 17, 2012

Submission Control No.: 151345

Registered trade-mark of Canderm GP, Montreal, Quebec, Canada H4R 2H4

PRODUCT MONOGRAPH

NAME OF DRUG

CONDYLINE

Podofilox Topical Solution 0.5%

THERAPEUTIC CLASSIFICATION

Antimitotic Agent

ACTIONS

Necrosis of visible tissue is observed following treatment of genital warts with CONDYLINE

(Podofilox Topical Solution 0.5%). The exact mechanism of action is unknown.

CONDYLINE (Podofilox Topical solution 0.5%) is believed to exert its antimitotic effect by

binding to tubulin, at a site close to but not identical to the binding site of colchicine; it is thought

that this antimitotic effect causes necrosis of wart tissue, the observed clinical effect. In addition,

podofilox is known to interfere with nucleoside transport which may also contribute to its action

(1). Crude podophyllum resin, from which podofilox is extracted, has been shown to produce

mitotic arrest and necrosis of wart tissue.

INDICATIONS

CONDYLINE (Podofilox Topical Solution 0.5%) is indicated for the topical treatment of

external genital warts (Condylomata acuminata) confined to the penile and vulvar regions. The

effectiveness of podofilox in the treatment of perianal or mucous membrane warts has not been

established.

CONTRAINDICATIONS

CONDYLINE (Podofilox Topical Solution 0.5%) is contraindicated for patients who develop

hypersensitivity to podofilox or intolerance to any component of the formulation. CONDYLINE

should not be applied to open wounds. The consumption of alcoholic beverages for several hours

after treatment is to be avoided.

WARNINGS

CONDYLINE (PODOFILOX TOPICAL SOLUTION 0.5%) IS INTENDED FOR TOPICAL

USE ONLY.

CONDYLINE IS A POTENT VESICANT AND IS TO BE USED ONLY AS DIRECTED BY

A PHYSICIAN. EXTREME CARE SHOULD BE TAKEN TO AVOID CONTACT WITH THE

EYE, TONGUE OR ANY MUCOSAL TISSUE OF THE GENITAL AREA (INCLUDING

VAGINA, CERVIX, ANUS OR PERIANUS). IF CONTACT WITH THE EYES OCCURS,

FLUSH IMMEDIATELY WITH COPIOUS AMOUNTS OF WATER AND SEE A DOCTOR

IMMEDIATELY.

PRECAUTIONS

Diagnosis:

Although

Condylomata

(genital

warts)

have

characteristic

appearance,

histopathologic

confirmatory tests should be obtained if there is any question of the diagnosis. Differential

diagnosis from squamous cell carcinoma (so called "Bowenoid papulosis") is of particular

concern. Squamous cell carcinoma may also be associated with human papillomavirus but

should not be treated with CONDYLINE (Podofilox Topical Solution 0.5%).

General:

CONDYLINE (Podofilox Topical Solution 0.5%) may not prevent either the recurrence of

previously resolved warts or the development of new warts at sites remote from the treatment

site. The recommended method of application, frequency of application and duration of usage

should not be exceeded (See DOSAGE and ADMINISTRATION).

The use of large volumes, greater than 0.25 mL per application or 0.5 mL per day, should be

avoided. This can best be accomplished by limiting the treatment area to less than 10 square

centimeters and instructing the patient in the proper application of the product.

Genital warts may be contagious and the patient should be instructed to abstain from sexual

intercourse. If this is not possible, a latex condom must be used until the infected partner is

declared cured by the physician.

The patient should be instructed that if the product is accidentally spilled on undiseased skin, it

should be wiped off at once and the exposed skin washed vigorously with warm soapy water and

rinsed thoroughly. This product should not be used if growth or surrounding tissue is inflamed or

irritated. Self-treatment of genital warts with surface areas greater than 10 square centimeters

should not be permitted. The patient should be cautioned against applying the drug to lesions

other than warts.

Information for Patients:

The patient should be provided with a Patient Information leaflet when a CONDYLINE

prescription is filled.

Long Term Safety:

Reports of lifetime carcinogenicity studies in rodents with podofilox, the drug substance, are not

available. In general, podofilox was not shown to be carcinogenic in published animal studies (5,

6, 7, 8, 9). There are published reports that, in the mouse studies, crude podophyllin resin

(containing podofilox) applied topically to the cervix produced changes resembling carcinoma in

situ. These changes were reversible at five weeks after cessation of treatment. In another

published study, epidermal carcinoma of the vagina and cervix was found in 1 out of 18 mice

following 120 applications of podophyllin, applied twice weekly over a 15-month treatment

period.

Podofilox was not mutagenic in the Ames plate reverse mutation assay, either with or without

metabolic activation, at concentrations up to 5 mg/plate. There was no evidence of potential

oncogenicity in the BALB/3T3 cell transformation assay. Results from the mouse micronucleus

in vivo assay using podofilox 0.5% solution in concentrations up to 25 mg/kg indicate that

podofilox should be considered a potential clastogen (a chemical that induces disruption and

breakage of chromosomes).

Daily topical application of CONDYLINE (Podofilox Topical Solution 0.5%) at doses up to the

equivalent of 0.2 mg/kg (5 times the recommended maximum human dose) to rats throughout

gametogenesis, mating, gestation, parturition and lactation for two generations demonstrated no

impairment of fertility.

Use in Pregnancy:

There are no adequate and well-controlled studies in pregnant women. Podofilox should be used

in pregnancy only if the potential benefit justifies the potential risk to the fetus.

Use in Nursing Mothers:

It is not known whether this drug is excreted in human milk. Because of the potential for serious

adverse reactions in nursing infants from podofilox, a decision should be made whether to

discontinue nursing or to discontinue the drug, taking into account the importance of the drug to

the mother.

Pediatric Use:

Safety and effectiveness in children have not been established.

Use in patients with special diseases and conditions:

CONDYLINE (Podofilox Topical Solution 0.5%) should not be used in diabetics or people with

poor blood circulation. Podofilox should not be applied on moles, birthmarks or unusual warts

with hair growing from them. Podofilox should not be used on tissue which was recently

exposed to laser surgery or cryosurgery.

ADVERSE REACTIONS

In clinical trials (16) the following have been shown to be the most common local adverse events

which were reported at some time during treatment:

Inflammation - 67 %

Burning - 62 %

Erosion - 59 %

Pain - 49 %

Other - e. g.,

bleeding, itching, dizziness, insomnia - 21 %

These reactions may be greater in the occluded prepuce of the uncircumcised male patient.

OVERDOSAGE

TOPICAL - SYMPTOMS AND TREATMENT:

In cases of tingling, burning or extreme tenderness, soak the area in cold water for 10 minutes;

repeat as required for the relief of pain. A mild analgesic, eg. acetylsalicylic acid with codeine or

acetaminophen with codeine may be beneficial for pain management in some cases. Adjuvant

topical anti-inflammatory therapy eg. hydrocortisone acetate, can be advantageous for alleviation

of local discomfort.

SYSTEMIC - SYMPTOMS AND TREATMENT:

Topically

applied

CONDYLINE

(Podofilox

Topical

solution

0.5%)

absorbed

systemically. It may cause systemic toxicity after oral ingestion. Neurotoxic reactions are

observed after oral doses exceeding 0.5 mg podofilox per kg body weight. For an adult this dose

corresponds to the equivalent of the content of two bottles of 3.5 mL CONDYLINE.

Systemic toxicity may lead to prolonged peripheral neuropathy. Initial symptoms are weakness,

drowsiness, dizziness, diarrhoea and general indisposition. A later symptom may be coma with

the risk of respiratory failure, ileus, vascular crisis and death. Treatment of overdosage is

principally symptomatic and supportive therapy.

Hemoperfusion through coal filter and symptomatic treatment may prevent a fatal outcome.

Possible toxic effects of the bone marrow (e.g. leukocytosis, pancytosis) are generally transitory.

DOSAGE AND ADMINISTRATION

Apply twice daily, morning and evening (every 12 hours) for three consecutive days followed by

four days without treatment. The use of CONDYLINE (Podofilox Topical Solution 0.5%) twice

a day for three days constitutes a treatment cycle. Treatment cycles should be repeated up to four

times until there is no visible wart tissue.

If there is incomplete response after four treatment cycles, alternative treatment should be

considered.

CONDYLINE is applied to the warts with a cotton tipped applicator supplied with the drug. The

wetted applicator should be touched to the wart to be treated, applying the minimum amount of

solution necessary to cover the lesion. Treatment should be limited to less than 10 cm

2

of

wart tissue and to no more than 500 µg (0.5 mL) of the solution per day.

To ensure that only the genital warts are treated and properly applied, the physician performs the

first application for the patient as an office procedure. The patient is shown how to minimize

contact with the surrounding healthy tissue and the use of a hand mirror which may help, when

he/she applies the solution at home. There is no evidence to suggest that more frequent

application will increase efficacy, but this would be expected to increase the rate of local adverse

reactions and systemic absorption.

Before applying the medication, the area to be treated should be gently washed with soap and

water and gently patted dry. If an area in the occluded prepuce (under the foreskin) is being

treated, care should be taken to allow the solution to dry before letting the foreskin return to its

normal position. Avoid contact with clothing until the solution has dried. After each treatment,

the used applicator should be properly and safely disposed of in a garbage can, out of reach of

children, and the patient should wash his/her hands. It is recommended that the area not be

washed following application of CONDYLINE as is the practice with traditional podophyllum

resin preparations.

PHARMACEUTICAL INFORMATION

PROPER NAME OF THE DRUG SUBSTANCE:

PODOFILOX

CHEMICAL NAME: (5R, 5aR, 8aR, 9R) – 5, 8, 8a, 9 – Tetrahydro – 9 – hydroxy – 5 – (3, 4, 5 –

trimethoxyphenyl) – furo [3’, 4’:6, 7] naphthol - [2, 3-d] – 1, 3 – dioxol – 6 (5aH) – one

MOLECULAR FORMULA: C

MOLECULAR WEIGHT: 414.40

MOLECULAR STRUCTURE:

DESCRIPTION:

A white or almost white crystalline powder with no characteristic odour, freely soluble in

acetone and 96% alcohol; soluble in chloroform, toluene, methylene chloride and ethyl acetate;

and very slightly soluble in water and hexane.

COMPOSITION:

CONDYLINE (Podofilox Topical Solution 0.5%) is a hydro-alcoholic solution containing

5 mg/mL podofilox; a sodium lactate buffer stabilizes a 1:10 aqueous solution between 2.5 and 4.

STABILITY AND STORAGE RECOMMENDATIONS:

Store at controlled room temperature (15-30ºC), away from light and heat, in a tightly-closed

container.

DOSAGE FORM:

CONDYLINE (Podofilox Topical Solution 0.5%) is available in a 3.5 mL amber glass bottle

with plastic child-resistant cap containing 0.5% podofilox. Package includes twelve cotton-

tipped applicators.

PATIENT INFORMATION LEAFLET

CONDYLINE

Podofilox Topical Solution 0.5%

NOTICE: TREAT ONLY THE WARTS INDICATED BY THE PHYSICIAN

CONTENTS:

CONDYLINE is a hydro-alcoholic solution containing 5 mg/mL podofilox, with a sodium

lactate buffer that stabilizes the 1:10 aqueous solution with a pH between 2.5 and 4.

INDICATIONS:

For the removal of external genital warts located on the penis and vulva.

PRECAUTIONS:

CONDYLINE may not be able to prevent the reappearance of previously healed warts or the

development of new warts at a location that was not previously treated.

CONDYLINE is for external use only.

If CONDYLINE is accidentally spilled on healthy skin, wipe off at once and wash vigorously

with warm soapy water and rinse well.

If spilled on mucous membranes or the eyes, flush repeatedly with a large amount of water for

fifteen minutes. See a physician immediately.

Keep this medication safely out of the reach of children.

DO NOT consume alcoholic beverages for several hours after treatment.

DO NOT permit CONDYLINE to contact eyes, tongue or any mucosal tissue of the genital area

including vagina, cervix, anus or perianus.

DO NOT use if growth or surrounding tissue is inflamed or irritated.

If you are a diabetic or have poor blood circulation, consult your physician before using this

product.

DO NOT use on moles, birthmarks or unusual warts with hair growing from them.

DO NOT use on tissue which was recently exposed to laser surgery or cryosurgery.

DO

NOT

self-treat

genital

warts

with

surface

areas

greater

than

square

centimetres

(approximately the size of a dollar coin).

DO NOT apply the solution to any other warts. Only apply the solution to the genital warts

instructed. Always wash hands after using the solution.

WARNINGS:

CONDYLINE SHOULD BE USED ONLY AS DIRECTED BY A PHYSICIAN. KEEP

OUT OF THE REACH OF CHILDREN. CAP TIGHTLY AND IMMEDIATELY AFTER

USE. EXTREME CARE SHOULD BE TAKEN TO AVOID ALL CONTACT WITH THE

EYES.

SIDE EFFECTS:

Local discomfort is inevitable with the topical treatment of genital warts. Topical reactions are

common and usually experienced on the second and third day of treatment in association with

the beginning of necrosis of the warts. These reactions tend to be mild and well tolerated.

However, a mild analgesic such as acetylsalicylic acid with codeine or acetaminophen with

codeine may be taken for pain management in some cases. Erythema (redness) with some pain

and/or superficial ulceration of the skin in the treated area are to be expected.

DOSAGE AND ADMINISTRATION:

The first application of CONDYLINE is to be administered by a physician. You will then apply

the solution yourself, at home, and only on those warts pointed out by your doctor. Before

applying the medication, gently wash the area to be treated with soap and water and gently pat

dry. A skin protectant, such as petrolatum jelly, should be applied to the normal skin adjacent to

the wart. Using one of the cotton-tipped applicators supplied, carefully apply only as much

CONDYLINE as is necessary to cover the warts while taking care to minimize contact with the

surrounding healthy skin. If you have multiple warts, you may need more solution to cover

all the warts. In that case, you must take a fresh applicator. Never reuse an applicator or

dip a used applicator into the bottle. The use of a hand mirror may be helpful for proper

application. If an area in the occluded prepuce (under the foreskin) is being treated, care should

be taken to allow the solution to dry before letting the foreskin return to its normal position.

Avoid contact with clothing until the solution has dried. Apply in the morning and evening for

three consecutive days. After each treatment, the used applicator should be properly and

safely disposed of in a garbage can, out of the reach of children, and the hands should be

properly washed.

Do not use more than 2 times a day and not more than 3 days in a row.

This treatment procedure may be repeated at one week intervals with a four day time lapse

between treatments, until a cure is obtained.

This should not exceed a four reek treatment schedule. If excessive burning or irritation

occurs, discontinue treatment and consult a physician. Genital warts may be contagious and the

patient should abstain from sexual intercourse. If this is not possible, a latex condom must be

used by the male patient until the sexual partner receiving the treatment for genital warts is

declared cured by a physician. When using a condom, avoid the simultaneous use of petrolatum

or other lubricants because it may increase the risk of rupture of the condom during sexual

intercourse.

SUPPLIED:

CONDYLINE is available in a 3.5 mL amber glass bottle with plastic child-resistant cap

containing 0.5% podofilox. Package includes twelve cotton-tipped applicators.

Product Monograph available to physicians and pharmacists on request.

sanofi-aventis Canada Inc.

Laval, Quebec H7L 4A8

Registered trade-mark of Canderm GP, Montreal, Quebec, Canada H4R 2H4

CYTOLOGY

In-vitro,

podofilox

0.01

µg/mL

causes

reversible

concentration

dependent

cytostatic and mitotic arresting effects on human leukaemic lymphoblasts (2). At concentrations

of 1 to 10 µg/mL, podofilox has been shown to be toxic to leukaemic cells but not to normal

lymphocytes (3).

VIROLOGY

Human papillomaviruses (HPV) cause either clinical or subclinical disease, or both. Clinical

disease includes Condylomata acuminate of the vulva and vagina, as well as of the cervix, anus

and penis. Warts with verrucous surface develop in genital skin that is susceptible to trauma such

as the introitus, prepuce and anus. These findings are consistent with the concept that the

causative virus, HPV, infects first the lower most basal cells of the squamous epithelium. Indeed,

fissures in the genital skin enhance viral entry.

Molecular biology has assisted in the identification and characterisation of 66 different types of

HPV's, 23 of which infect the lower genital tract. HPV types 6 and 11 are found in benign

Condylomata acuminata, whereas HPV-16, 18, 31, 33, 35, 39 and the 50's and 60's groups are

found in genital squamous cell carcinoma, and particularly in their precursor lesions. Among

HPV's, the most frequent type in the genital skin is HPV type 16 (1, 14).

Experimentally, when HPV-infected squamous epithelial cells are grafted into immunologically

incompetent nude mice, Condylomata develop. HPV DNA was found in fomites such as

underwear, various surgical instruments, and the plume of laser smoke.

CLINICAL PHARMACOLOGY

The systemic absorption of topical 0.5% podofilox in alcohol has been evaluated in 52 patients

(4). Absorption was related to the volume applied to the wart being treated. When 0.05 mL of

0.5% podofilox was applied to wart tissue, the drug was not detected in serum. When volumes of

0.1 to 1.5 mL were applied, peak levels of 1 to 17 ng/mL in serum were detectable at one to two

hours after application. The half-life ranged from 1.0 to 4.5 hours. The drug did not accumulate

after multiple treatments.

Volumes of less than or equal to 100 µL per application are adequate to treat most cases of

genital warts and volumes of less than or equal to 250 µL twice daily for three days is safe. If

100% of the maximum recommended daily dose (0.5 mL) were absorbed, this would correspond

to a dose of approximately 0.04 mg/kg in a 70 kg adult.

PHARMACODYNAMICS

following

table

demonstrates

total

exposure

podofilox

within

range

recommended dosing:

0.5 % Drug

Volume (µL)

mg/dose

mg/kg/dose

mg/kg/24 doses*

0.25

0.005

0.12

0.50

0.010

0.24

1.00

0.020

0.48

Four 3-day treatment cycles of twice daily application and assuming a 50 kg adult.

TOXICOLOGY

Carcinogenesis, Mutagenesis and Impairment of Fertility

Reports of lifetime carcinogenicity studies in mice are not available. Published animal studies, in

general, have shown the drug substance, podofilox to be carcinogenic (5, 6, 7, 8, 9). There are

published reports that, in mouse studies, crude podophyllin resin (containing podofilox) applied

topically to the cervix produced changes resembling carcinoma in situ (10). These changes were

reversible at five weeks after cessation of treatment. In one reported experiment, epidermal

carcinoma of the vagina and cervix was found in 1 out of 18 mice after 120 applications of

podophyllin (11) (the drug was applied twice weekly over a 15-month period). Podofilox was not

mutagenic in the Ames plate incorporation assay when tested at concentration up to 5 mg/plate,

with and without metabolic activation. No cell transformation was observed in BALB/3T3 cells

after exposure to podofilox at concentrations up to 0.008 microgram/mL without metabolic

activation and 12 microgram/mL podofilox with metabolic activation. Results from the mouse

micronucleus in vivo assay using podofilox 0.5% solution in concentrations up to 25 mg/kg,

indicate that podofilox should be considered a potential clastogen.

Reproduction and fertility

Daily topical application of CONDYLINE (Podofilox Topical Solution 0.5%) at doses up to the

equivalent of 0.2 mg/kg (5 times the recommended maximum human dose) to rats throughout

gametogenesis, mating, gestation, parturition and lactation for two generations demonstrated no

impairment of fertility.

Teratology

Podofilox was not teratogenic in the rabbit following topical application of up to 0.21 mg/kg

(5 times the maximum human dose) once daily for 13 days. The scientific literature contains

references that podofilox is embryotoxic in rats when administered systemically in a dose

approximately 250 times the recommended maximum human dose (12, 13). Teratogenicity and

embryotoxicity have not been studied with intravaginal application. Many antimitotic drug

products are known to be embryotoxic. There are no adequate and well-controlled studies in

pregnant women.

REFERENCES AND SELECTED BIBLIOGRAPHY

Krogh, G. von : Condylomata acuminata 1983: an updated review. Seminars in Dermatology

1983; 2:109-129

Krishan,

Paika,

Frei,

Cytofluorometric

studies

action

podophyllotoxin and epipodophyllotoxins (VM-26, VP-16-213) on the cell cycle traverse of

human lymphoblasts. J.Cell Biology 1975; 66: 521-530

Schrek, R. and Stefani, S.S. : Toxicity of microtubular drugs to leukaemic lymphocytes.

Experimental and Molecular Pathology 1974; 38:369-378.

Krogh, G. von : Podophyllotoxin in serum: absorption subsequent to three-day repeated

applications

0.5%

ethanolic

preparation

condylomata

acuminata.

Sexually

Transmitted Diseases 1982;9:26-33

Beremblum, I. : The Effect of Podophyllotoxin on the Skin of the Mouse with Reference to

Carcinogenic,

Co-carcinogenic

Anticarcinogenic

Action.

Natl.

Cancer

Inst.

1951;11:839-841.

Kaminetzky, H.A. and Swerdlow, M. : Podophyllotoxin and the Mouse Cervix: Assessment

of Carcinogenic Potential. Amer. J. Obst. Gynec. 1965;93:486-490.

McGrew, E.A. and Kaminetzky, H.A. : The Genesis of Experimental Cervical Epithelial

Dysplasia. Amer. J. Clin. Path. 1961;35:538-545.

Roe, F.J.C. and Salaman, M.H. : Further studies on Incomplete Carcinogenesis: Triethylene

Melemine

(T.E.M.),

1,2-Benzanthracene

Beta-Propiolactone,

Initiators

Skin

Tumour Formation in the Mouse. Brit. J. Cancer. 1955;9:177-203.

Taper, H.S. : Induction of the Deficient Acid DNAse Activity in Mouse Interfollicular

Epidermis by Croton Oil as a Possible Tumour Promoting Mechanism. Z. Kerbsforsch.

1977;90:197-210.

Kaminetzky, H.A., McGrew, E.A. and Phillips, R.L. : Experimental Cervical Epithelia

Dysplasia. Am. J. Obst. Gyn. 1959;14:1-3.

Kaminetzky, H.A. and Mcgrew, E.A.: Podophyllotoxin and Mouse Cervix. Arch. Path.

1963;73:481-485.

Didcock, K., Jackson, D. and Robson, J.M. : The Action of Some Nucleotoxic Substances on

Pregnancy. Brit. J. Pharmacol. 1956;11:437-441.

Thiersch, J. B. : Effect of Podophyllin (P) and Podophyllotoxin on the Rat Liver in Utero.

Proc. Soc. Exp. Biol. Med. 1963; 113: 124-127.

Ferenczy, A. : Management strategies for genital HPV infection in men. Contemporary

Urology (Canada) 1990;1,2:649-658.

Savel, H. : "Clinical Experiences with Intravenous Podophyllotoxin" Proc. Amer. Assoc.

Cancer Res. 1964; 5.

American Clinical Trials: Friedman-Kein; Beutner; Conant. Documents available on file at

Canderm Pharmacal Ltd.

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