Gonal-F NGP

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Gonal-F NGP uses


1 INDICATIONS AND USAGE

Follistim® AQ is indicated:

In Women for:

Gonal-F NGP is a gonadotropin indicated:

In Women for:


In Men for:

1.1 Induction of ovulation and pregnancy in anovulatory infertile women in whom the cause of infertility is functional and not due to primary ovarian failure

Prior to initiation of treatment with Gonal-F NGP:

1.2 Development of multiple follicles in ovulatory women participating in an Assisted Reproductive Technology program

Prior to initiation of treatment with Gonal-F NGP:


In Men for:

1.3 Induction of spermatogenesis in men with primary and secondary hypogonadotropic hypogonadism in whom the cause of infertility is not due to primary testicular failure

Prior to initiation of treatment with Gonal-F NGP:

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2 DOSAGE AND ADMINISTRATION

Ovulation Induction in Women


Assisted Reproductive Technology (ART) in Women (2.3)


Induction of Spermatogenesis in Men (2.4)

2.1 General Dosing

2.2 Recommended Dosing for Ovulation Induction

The dosing scheme is stepwise and is individualized for each woman .


The following should be considered when planning the woman's individualized dose:


It is recommended that Gonal-F NGP administration be stopped if the ovarian monitoring suggests an increased risk of OHSS or abdominal pain occurs. Most OHSS occurs after treatment has been discontinued and reaches its maximum at about seven to ten days post-ovulation.

2.3 Recommended Dosing for ART

The dosing scheme follows a stepwise approach and is individualized for each woman.

2.4 Recommended Dosing for Induction of Spermatogenesis in Men


The concomitant therapy should be continued for at least 3 to 4 months before any improvement in spermatogenesis can be expected. If a man has not responded after this period, the combination therapy may be continued. Treatment response has been noted at up to 12 months.

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3 DOSAGE FORMS AND STRENGTHS

Gonal-F NGP Single-Use Vial 75 international units per 0.5 mL

Gonal-F NGP Single-Use Vial 150 international units per 0.5 mL

Single-Use Vial 75 international units per 0.5 mL (3)

Single-Use Vial 150 international units per 0.5 mL (3)

4 CONTRAINDICATIONS

Gonal-F NGP is contraindicated in women and men who exhibit:


Gonal-F NGP is also contraindicated in women who exhibit:


Women and men who exhibit:


Women who exhibit:

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5 WARNINGS AND PRECAUTIONS

Gonal-F NGP should be used only by physicians who are experienced in infertility treatment. Gonal-F NGP is a potent gonadotropic substance capable of causing Ovarian Hyperstimulation Syndrome with or without pulmonary or vascular complications and multiple births . Gonadotropin therapy requires the availability of appropriate monitoring facilities .

Careful attention should be given to the diagnosis of infertility and in the selection of candidates for Gonal-F NGP therapy .

Treatment with Gonal-F NGP may result in:

5.1 Abnormal Ovarian Enlargement

In order to minimize the hazards associated with abnormal ovarian enlargement that may occur with Gonal-F NGP therapy, treatment should be individualized and the lowest effective dose should be used . Use of ultrasound monitoring of ovarian response and/or measurement of serum estradiol levels is important to minimize the risk of overstimulation .

If the ovaries are abnormally enlarged on the last day of Gonal-F NGP therapy, hCG should not be administered in order to reduce the chances of developing Ovarian Hyperstimulation Syndrome (OHSS). Intercourse should be prohibited in patients with significant ovarian enlargement after ovulation because of the danger of hemoperitoneum resulting from ruptured ovarian cysts .

5.2 Ovarian Hyperstimulation Syndrome

OHSS is a medical entity distinct from uncomplicated ovarian enlargement and may progress rapidly to become a serious medical condition. OHSS is characterized by a dramatic increase in vascular permeability, which can result in a rapid accumulation of fluid in the peritoneal cavity, thorax, and potentially, the pericardium. The early warning signs of OHSS developing are severe pelvic pain, nausea, vomiting, and weight gain. Abdominal pain, abdominal distension, gastrointestinal symptoms including nausea, vomiting and diarrhea, severe ovarian enlargement, weight gain, dyspnea, and oliguria have been reported with OHSS. Clinical evaluation may reveal hypovolemia, hemoconcentration, electrolyte imbalances, ascites, hemoperitoneum, pleural effusions, hydrothorax, acute pulmonary distress, and thromboembolic reactions . Transient liver function test abnormalities suggestive of hepatic dysfunction with or without morphologic changes on liver biopsy have also been reported in association with OHSS.

OHSS occurs after gonadotropin treatment has been discontinued and it can develop rapidly, reaching its maximum about seven to ten days following treatment. Usually, OHSS resolves spontaneously with the onset of menses. If there is evidence that OHSS may be developing prior to hCG administration , the hCG must be withheld. Cases of OHSS are more common, more severe, and more protracted if pregnancy occurs; therefore, women should be assessed for the development of OHSS for at least two weeks after hCG administration.

If serious OHSS occurs, treatment should be stopped and the patient should be hospitalized. Treatment is primarily symptomatic and overall should consist of bed rest, fluid and electrolyte management, and analgesics (if needed). Because the use of diuretics can accentuate the diminished intravascular volume, diuretics should be avoided except in the late phase of resolution as described below. The management of OHSS may be divided into three phases as follows:


OHSS increases the risk of injury to the ovary. The ascitic, pleural, and pericardial fluid should not be removed unless there is the necessity to relieve symptoms such as pulmonary distress or cardiac tamponade. Pelvic examination may cause rupture of an ovarian cyst, which may result in hemoperitoneum, and should therefore be avoided. If bleeding occurs and requires surgical intervention, the clinical objective should be to control the bleeding and retain as much ovarian tissue as possible.

During clinical trials with Follistim therapy, OHSS occurred in 7.6% of 105 women (OI) and 5.2% of 591 women (ART) treated with Follistim.

5.3 Pulmonary and Vascular Complications

Serious pulmonary conditions have been reported in women treated with gonadotropins. In addition, thromboembolic reactions both in association with, and separate from, OHSS have been reported following gonadotropin therapy. Intravascular thrombosis, which may originate in venous or arterial vessels, can result in reduced blood flow to vital organs or the extremities. Women with generally recognized risk factors for thrombosis, such as a personal or family history, severe obesity, or thrombophilia, may have an increased risk of venous or arterial thromboembolic events, during or following treatment with gonadotropins. Sequelae of such reactions have included venous thrombophlebitis, pulmonary embolism, pulmonary infarction, cerebral vascular occlusion (stroke), and arterial occlusion resulting in loss of limb and rarely in myocardial infarction. In rare cases, pulmonary complications and/or thromboembolic reactions have resulted in death. In women with recognized risk factors, the benefits of ovulation induction or in vitro fertilization (IVF) treatment need to be weighed against the risks. It should be noted that pregnancy itself also carries an increased risk of thrombosis.

5.4 Ovarian Torsion

Ovarian torsion has been reported after treatment with Gonal-F NGP and after intervention with other gonadotropins. This may be related to OHSS, pregnancy, previous abdominal surgery, past history of ovarian torsion, previous or current ovarian cyst and polycystic ovaries. Damage to the ovary due to reduced blood supply can be limited by early diagnosis and immediate detorsion.

5.5 Multi-fetal Gestation and Birth

Multi-fetal gestation and births have been reported with all gonadotropin treatments including Gonal-F NGP treatment. The woman and her partner should be advised of the potential risk of multi-fetal gestation and births before starting treatment.

5.6 Congenital Anomalies

The incidence of congenital malformations after ART may be slightly higher than after spontaneous conception. This slightly higher incidence is thought to be related to differences in parental characteristics and to the higher incidence of multi-fetal gestations after ART. There are no indications that the use of gonadotropins during ART is associated with an increased risk of congenital malformations.

5.7 Ectopic Pregnancy

Since infertile women undergoing ART, and particularly IVF, often have tubal abnormalities the incidence of ectopic pregnancies might be increased. Early confirmation of an intrauterine pregnancy should be determined by hCG testing and transvaginal ultrasound.

5.8 Spontaneous Abortion

The risk of spontaneous abortions is increased with gonadotropin products. However, causality has not been established. The increased risk may be a factor of the underlying infertility.

5.9 Ovarian Neoplasms

There have been infrequent reports of ovarian neoplasms, both benign and malignant, in women who have undergone multiple drug regimens for ovulation induction; however, a causal relationship has not been established.

5.10 Laboratory Tests

For Women:

In most instances, treatment with Gonal-F NGP will result only in follicular growth and maturation. In order to complete the final phase of follicular maturation and to induce ovulation, hCG must be given following the administration of Gonal-F NGP or when clinical assessment indicates that sufficient follicular maturation has occurred. The degree of follicular maturation and the timing of hCG administration can both be determined with the use of sonographic visualization of the ovaries and endometrial lining in conjunction with measurement of serum estradiol levels. The combination of transvaginal ultrasonography and measurement of serum estradiol levels is also useful for minimizing the risk of OHSS and multi-fetal gestations.

The clinical confirmation of ovulation is obtained by the following direct or indirect indices of progesterone production as well as sonographic evidence of ovulation.

Direct or indirect indices of progesterone production are:


The following provide sonographic evidence of ovulation:


Sonographic evaluation of the early pregnancy is also important to rule out ectopic pregnancy.

For Men:

Clinical monitoring for spermatogenesis utilizes the following indirect or direct measures:

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6 ADVERSE REACTIONS

The following serious adverse reactions are discussed elsewhere in the labeling:


The most common adverse reactions (≥2%) in women undergoing ovulation induction are: ovarian hyperstimulation syndrome, ovarian cyst, abdominal discomfort, abdominal pain and lower abdominal pain. (6.1)

The most common adverse reactions (≥2%) in women receiving ART are ovarian hyperstimulation syndrome and abdominal pain. (6.1)

The most common (≥2%) adverse reactions in men undergoing induction of spermatogenesis are headache, acne, injection site reaction, injection site pain, gynecomastia, rash and dermoid cyst. (6.1)

To report SUSPECTED ADVERSE REACTIONS, contact Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., at 1-877-888-4231 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

6.1 Clinical Study Experience

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 clinical practice.

Ovulation Induction

In a single cycle, multi-center, assessor-blind, parallel group, comparative study, a total of 172 chronic anovulatory women who had failed to ovulate and/or conceive with clomiphene citrate therapy, were randomized and treated with Follistim (105) or a urofollitropin comparator. Adverse reactions with an incidence of greater than 2% in either treatment group are listed in Table 1.

System Organ Class/Adverse Reactions Treatment

Number (%) of Women

Follistim

N=105

n (%)

Comparator

N=67

n (%)

Gastrointestinal disorders
Abdominal discomfort 3 (2.9) 1 (1.5)
Abdominal pain 3 (2.9) 2 (3.0)
Abdominal pain lower 3 (2.9) 1 (1.5)
Reproductive system and breast disorders
Ovarian cyst 3 (2.9) 2 (3.0)
Ovarian hyperstimulation syndrome 8 (7.6) 3 (4.5)
General disorders and administration site conditions
Pyrexia 0 (0.0) 2 (3.0)

Adverse reactions reported commonly (greater than or equal to 2% of women treated with Follistim) in other ovulation induction clinical trials were headache, abdominal distension, constipation, diarrhea, nausea, pelvic pain, uterine enlargement, vaginal hemorrhage and injection site reaction.

The following medical events have been reported subsequent to pregnancies resulting from Gonal-F NGP therapy:


ART

In a multiple cycle, multi-center, assessor-blind, parallel group, comparative study, after pituitary suppression with a gonadotropin release hormone (GnRH) agonist, a total of 989 women were randomized and treated with Follistim (N=591) or a urofollitropin comparator as part of in vitro fertilization therapy (IVF). Adverse reactions with an incidence of greater than 2% in either treatment group are listed in Table 2.

System Organ Class/Adverse Reactions Treatment

Number (%) of Women

Follistim

N=591

n (%)

Comparator

N=398

n (%)

Gastrointestinal disorders
Abdominal pain 13 (2.2) 4 (1.0)
Reproductive system and breast disorders
Ovarian hyperstimulation syndrome 31 (5.2) 17 (4.3)

Adverse reactions reported commonly (greater than or equal to 2% of women treated with Follistim) in other IVF clinical trials were headache, abdominal distension, constipation, diarrhea, nausea, pelvic pain, breast tenderness, metrorrhagia, ovarian enlargement, vaginal hemorrhage, injection site reaction and rash.

The following medical events have been reported subsequent to pregnancies resulting from Gonal-F NGP therapy:


Induction of Spermatogenesis

In an open-label, non-comparative clinical trial, 49 men with hypogonadotropic hypogonadism were enrolled to received pretreatment with hCG, followed by combination therapy with hCG and Follistim for induction of spermatogenesis. Of the 49 men, 30 received weekly Follistim doses of 450 international units; 24 of these 30 men received a total of 48 weeks of treatment with Follistim. Adverse reactions occurring with an incidence of greater than 2% in the 30 men treated with Follistim are listed in Table 3.

System Organ Class/Adverse Reactions Follistim Treatment

N=30

n (%)

Nervous system disorders
Headache 2 (6.7)
General disorders and administration site disorders
Injection site reaction 2 (6.7)
Injection site pain 2 (6.7)
Skin and subcutaneous tissue disorders
Acne 2 (6.7)
Rash 1 (3.3)
Reproductive system and breast disorders
Gynecomastia 1 (3.3)
Neoplasms benign, malignant and unspecified
Dermoid cyst 1 (3.3)

6.2 Postmarketing Experience

The following adverse reactions have been identified during post approval use of Follistim and/or Gonal-F NGP. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Vascular disorders:

Thromboembolism

7 DRUG INTERACTIONS

No drug-drug interaction studies have been performed.

8 USE IN SPECIFIC POPULATIONS

Nursing Mothers: It is not known whether this drug is excreted in human milk.

8.1 Pregnancy

Pregnancy Category X: Gonal-F NGP should not be used during pregnancy .

8.3 Nursing Mothers

It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions in the nursing infant from Gonal-F NGP, 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.

8.4 Pediatric Use

Safety and effectiveness in pediatric patients have not been established.

8.5 Geriatric Use

Clinical studies of Follistim did not include subjects aged 65 and over.

10 OVERDOSAGE

Aside from the possibility of Ovarian Hyperstimulation Syndrome and multiple gestations , there is no additional information concerning the consequences of acute overdosage with Gonal-F NGP.

11 DESCRIPTION

Gonal-F NGP contains human follicle-stimulating hormone (hFSH), a glycoprotein hormone which is manufactured by recombinant DNA (rDNA) technology. The active drug substance, Gonal-F NGP beta, has a dimeric structure containing two glycoprotein subunits (alpha and beta). Both the 92 amino acid alpha-chain and the 111 amino acid beta-chain have complex heterogeneous structures arising from two N-linked oligosaccharide chains. Gonal-F NGP beta is synthesized in a Chinese hamster ovary (CHO) cell line that has been transfected with a plasmid containing the two subunit DNA sequences encoding for hFSH. The purification process results in a highly purified preparation with a consistent hFSH isoform profile and high specific activity [as determined by the Ph. Eur. test for FSH in vivo bioactivity and on the basis of the molar extinction coefficient at 277 nm (εs:mg-1cm-1)=1.066].

The biological activity is determined by measuring the increase in ovary weight in female rats. The intrinsic luteinizing hormone (LH) activity in Gonal-F NGP beta is less than 1 international unit per 40,000 international units FSH. The compound is considered to contain no LH activity.

The amino acid sequence and tertiary structure of the product are indistinguishable from that of hFSH of urinary source. Also, based on available data derived from physico-chemical tests and bioassay, Gonal-F NGP beta and Gonal-F NGP alfa, another recombinant follicle-stimulating hormone product, are indistinguishable.

Gonal-F NGP is presented as a sterile aqueous solution intended for subcutaneous (in men and women) or intramuscular (women only) administration. Each single-use vial of Gonal-F NGP contains the following per 0.5 mL: 75 international units or 150 international units of FSH activity; 25 mg sucrose NF; 7.35 mg sodium citrate (dihydrate) USP; 0.25 mg L-methionine USP; 0.1 mg polysorbate 20 NF; and water for injection USP. Hydrochloric acid NF and/or sodium hydroxide NF are used to adjust the pH to 7.

The recombinant protein in Gonal-F NGP has been standardized for FSH in vivo bioactivity in terms of the WHO International Standard for Follicle Stimulating Hormone (FSH) Recombinant, Human for Bioassay (code 92/642), issued by the World Health Organization Expert Committee on Biological Standardization (1995). Under current storage conditions, Gonal-F NGP may contain up to 11% of oxidized Gonal-F NGP beta.

In clinical trials with Follistim, serum antibodies to FSH or anti-CHO cell derived proteins were not detected in any of the treated patients after exposure to Follistim for up to three cycles.

Therapeutic Class: Infertility.

12 CLINICAL PHARMACOLOGY

12.1 Mechanism of Action

Women:

Follicle-stimulating hormone, the active component in Gonal-F NGP, is required for normal follicular growth, maturation, and gonadal steroid production.

In women, the level of FSH is critical for the onset and duration of follicular development, and consequently for the timing and number of follicles reaching maturity. Gonal-F NGP stimulates ovarian follicular growth in women who do not have primary ovarian failure. In order to effect the final phase of follicle maturation, resumption of meiosis and rupture of the follicle in the absence of an endogenous LH surge, human chorionic gonadotropin (hCG) must be given following treatment with Gonal-F NGP when patient monitoring indicates appropriate follicular development parameters have been reached.

Men:

Follistim when administered with hCG stimulates spermatogenesis in men with hypogonadotropic hypogonadism. FSH, the active component of Follistim, is the pituitary hormone responsible for spermatogenesis.

12.3 Pharmacokinetics

Exposures of Gonal-F NGP beta from Gonal-F NGP and Follistim are expected to be equivalent. The following information is based on studies conducted with Follistim.

Absorption:

Women:

The bioavailability of Follistim following subcutaneous and intramuscular administration was investigated in healthy, pituitary-suppressed, women given a single 300 international units dose. In these women, the area under the curve (AUC), expressed as the mean ± SD, was equivalent between the subcutaneous (455.6 ± 141.4 IU*h/L) and intramuscular (445.7 ± 135.7 IU*h/L) routes of administration. However, equivalence could not be established with respect to the peak serum FSH levels (Cmax). The Cmax achieved after subcutaneous administration and intramuscular administration was 5.41 ± 0.72 international units/L and 6.86 ± 2.90 international units/L, respectively. After subcutaneous or intramuscular injection the apparent dose absorbed was 77.8% and 76.4%, respectively.

The pharmacokinetics and pharmacodynamics of a single, intramuscular dose (300 international units) of Follistim were also investigated in a group (n=8) of gonadotropin-deficient, but otherwise healthy women. In these women, FSH (mean ± SD) AUC was 339 ± 105 international units*h/L, Cmax was 4.3 ± 1.7 international units/L. Cmax occurred at approximately 27 ± 5.4 hours after intramuscular administration.

A multiple dose, dose proportionality, pharmacokinetic study of Follistim was completed in healthy, pituitary-suppressed, women given subcutaneous doses of 75, 150, or 225 international units for 7 days. Steady-state blood concentrations of FSH were reached with all doses after 5 days of treatment based on the trough concentrations of FSH just prior to dosing (Ctrough). Peak blood concentrations with the 75, 150, and 225 international units dose were 4.30 ± 0.60 international units/L, 8.51 ± 1.16 international units/L and 13.92 ± 1.81 international units/L, respectively.

A multiple dose, dose proportionality, pharmacokinetic study of Follistim was completed in healthy, pituitary-suppressed, women given intramuscular doses of 75, 150, or 225 international units for 7 days. Steady-state blood concentrations of FSH were reached with all doses after 4 days of treatment based on the minimum concentrations of FSH just prior to dosing (Cmin). Peak blood concentrations with the 75, 150, and 225 international units dose were 4.65 ± 1.49 international units/L, 9.46 ± 2.57 international units/L and 11.30 ± 1.77 international units/L, respectively.

Men:

Serum levels of FSH were measured in a clinical study that compared the effects of two different dosing schedules of Follistim (150 international units three times a week or 225 international units twice a week) administered by subcutaneous injection concurrently with chorionic gonadotropin for injection for induction of spermatogenesis in hypogonadotropic hypogonadal men. Administration of Follistim was started at Week 17. Mean serum trough concentrations of FSH remained fairly constant over the treatment period. At the end of treatment (Week 64), the mean serum trough concentrations of FSH were 2.09 international units/L in the 150 international units group and 3.22 international units/L in the 225 international units group. Serum trough concentrations of FSH measured prior to the first Follistim injection on the Mondays of active treatment period (Weeks 17 to 64) and one week after the end of treatment period are presented in Figure 1.

Figure 1

Distribution:

The volume of distribution of Follistim in healthy, pituitary-suppressed, women following intravenous administration of a 300 international units dose was approximately 8 L.

Metabolism:

The recombinant FSH in Gonal-F NGP is biochemically very similar to urinary FSH and it is therefore anticipated that it is metabolized in the same manner.

Elimination:

The elimination half-life (t1/2) following a single intramuscular dose (300 international units) of Follistim in women was 43.9 ± 14.1 hours (mean ± SD). The elimination half-life following a 7-day intramuscular treatment of women with 75, 150, or 225 international units was 26.9 ± 7.8 hours (mean ± SD), 30.1 ± 6.2 and 28.9 ± 6.5, respectively.

Use in Specific Populations:

Body weight: The effect of body weight on the pharmacokinetics of Follistim was evaluated in a group of European and Japanese women who were significantly different in terms of body weight. The European women had a body weight of (mean ± SD) 67.4 ± 13.5 kg and the Japanese subjects were 46.8 ± 11.6 kg. Following a single intramuscular dose of 300 international units of Follistim, the AUC was significantly smaller in European women (339 ± 105 international units*h/L) than in Japanese women (544 ± 201 international units*h/L). However, clearance per kg of body weight was essentially the same for the respective groups (0.014 and 0.013 L/hr/kg).

Geriatric Use: The pharmacokinetics of Follistim has not been studied in geriatric subjects.

Pediatric Use: The pharmacokinetics of Follistim has not been studied in pediatric subjects.

Renal Impairment: The effect of renal impairment on the pharmacokinetics of Follistim has not been studied.

Hepatic Impairment: The effect of hepatic impairment on the pharmacokinetics of Follistim has not been studied.

13 NONCLINICAL TOXICOLOGY

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility

Long-term toxicity studies in animals have not been performed with Follistim to evaluate the carcinogenic potential of the drug. Follistim was not mutagenic in the Ames test using S. typhimurium and E. coli tester strains and did not produce chromosomal aberrations in an in vitro assay using human lymphocytes.

14 CLINICAL STUDIES

14.1 Ovulation Induction

The efficacy of Follistim for Ovulation Induction was evaluated in a randomized, assessor-blind, parallel-group comparative, multicenter safety and efficacy study of 172 chronic anovulatory women who had previously failed to ovulate and/or conceive during clomiphene citrate treatment. The study results for ovulation rates are summarized in Table 4 and those for pregnancy rates are summarized in Table 5.

Cycle Follistim

(n=105)

First treatment cycle 72%
Second treatment cycle 82%
Third treatment cycle 85%
Cycle Follistim

(n=105)

First treatment cycle 14%
Second treatment cycle 19%
Third treatment cycle 23%

14.2 Assisted Reproductive Technology (ART)

The efficacy of Follistim as part of an Assisted Reproductive Technology (ART) program was established in three studies, two of which are described below.

Follistim was evaluated in a randomized, assessor-blind, parallel-group, comparative, multicenter safety and efficacy study of 981 healthy normal ovulatory infertile women (mean age 32) treated for multiple cycles with in vitro fertilization and controlled ovarian stimulation with Follistim (n=585) or urofollitropin (n=396) after pituitary suppression with a GnRH agonist. The first cycle results with Follistim are summarized in Table 6.

Parameter Follistim

(n=585)

Total number of oocytes recovered 10.9
OngoingA single vital or multiple vital pregnancy was termed ongoing when a pregnancy, at least 12 weeks after embryo transfer (ET), was confirmed by the investigator. pregnancy rate/attemptStudy was not powered to demonstrate these secondary endpoints. 22.2%
Ongoing pregnancy rate/transfer , Transfers were limited to a maximum of three embryos. 26.0%

Follistim was also evaluated in a randomized, assessor-blind, parallel-group, comparative, single center safety and efficacy study in 89 infertile healthy normal ovulatory women (mean age 32) treated for one cycle with in vitro fertilization and controlled ovarian stimulation with Follistim (n=54) or menotropins (n=35) without pituitary suppression with a GnRH agonist. The results with Follistim are summarized in Table 7.

Parameter Follistim

(n=54)

Total number of oocytes recovered 9.9
OngoingA single vital or multiple vital pregnancy was termed ongoing when a pregnancy, at least 12 weeks after embryo transfer (ET), was confirmed by the investigator. pregnancy rate/attemptStudy was not powered to demonstrate these secondary endpoints. 22.2%
Ongoing pregnancy rate/transfer , Transfers were limited to a maximum of three embryos. 30.8%

14.3 Induction of Spermatogenesis

The safety and efficacy of Follistim administered by subcutaneous injection concomitantly with chorionic gonadotropin for injection (hCG) has been examined in a multicenter, open-label, non-comparator clinical study for induction of spermatogenesis in hypogonadotropic hypogonadal men. The study compared the effects of two different Follistim dosing schedules on semen parameters and serum levels of follicle stimulating hormone (FSH). The multicenter study involved a 16-week pretreatment phase with hCG at a dosage of 1500 international units twice a week to normalize serum testosterone levels. If serum testosterone levels did not normalize after 8 weeks of hCG treatment, the hCG dose could have been increased to 3000 international units twice a week. This phase was followed by a 48-week treatment phase. Men who were still azoospermic after the pretreatment phase were randomized to receive either 225 international units Follistim together with 1500 international units hCG twice a week or 150 international units Follistim three times a week together with 1500 international units hCG twice weekly. Men who required 3000 international units of hCG twice a week in the pretreatment phase were continued on that dosage during the treatment phase. The mean age of patients in both treatment groups was approximately 30 years (range 18 to 47 years). At baseline, mean left and right testis volumes were 4.61 ± 2.94 mL and 4.57 ± 3.00 mL, respectively, in the group receiving three weekly injections of Follistim. For the group receiving two weekly injections of Follistim, the mean left and right testis volumes were 6.54 ± 2.45 mL and 7.21 ± 2.94 mL, respectively, at baseline. The primary efficacy endpoint was the percentage of patients with a mean sperm density of ≥1 x 106/mL on their last two treatment assessments. The outcomes of treatment in the 30 men enrolled in the treatment phase are summarized in Table 8.

Follistim 150 international units three times a week

(n=15)

Follistim 225 international units twice a week

(n=15)

Overall

(n=30)

Sperm Density of ≥106/mL n % n % n %
Yes 6 40 7 47 13 43
No 9 60 8 53 17 57

Overall, the median time to reach a sperm concentration of 106 per mL was 165 days (range 25 to 327 days) in patients who demonstrated a sperm concentration of at least 106 per mL. The median time to reach a sperm concentration of at least 106 per mL was 186 days (range 25 to 327 days) for the 150 international units group and 141 days (range 43 to 204 days) for the 225 international units group. No pregnancy data were collected during the trial.

The local tolerance data were comparable between the two treatment groups. The mean percentage of days without pain calculated for all subjects in the treatment period was 91.3% for patients in the 150 international units (three times a week) and 76.0% for patients in the 225 international units (two times a week) Follistim treatment groups. In the 225 international units (twice per week) group, local symptoms judged as severe by the investigator were: itching in 1 patient (7%), pain in 2 patients (13%), bruising in 2 patients (13%), swelling in 2 patients (13%), and redness in 1 patient (7%). In the 150 international units (three times per week) group, 1 event in 1 patient (bruising, 7%) was judged as severe. No patient discontinued treatment due to injection site reaction or injection site pain.

16 HOW SUPPLIED/STORAGE AND HANDLING

Gonal-F NGP (follitropin beta injection) is supplied as a sterile aqueous solution in a 2-mL vial to deliver 0.5 mL of the drug in the following concentrations and packaging:

Gonal-F NGP Single-Use Vial 75 international units per 0.5 mL

Box of 1 NDC 0052-0308-02

Gonal-F NGP Single-Use Vial 150 international units per 0.5 mL

Box of 1 NDC 0052-0309-02

Store refrigerated, 2-8°C (36-46°F) until dispensed. Upon dispensing, the product may be stored by the patient at 2-8°C (36-46°F) until the expiration date, or at or below 25°C (77°F) for 3 months or until expiration date, whichever occurs first. Protect from light, keep container in carton. Do not freeze.

17 PATIENT COUNSELING INFORMATION

See FDA-Approved Patient Labeling

17.1 Therapy Duration and Necessary Monitoring in Women and Men Undergoing Treatment

Prior to beginning therapy with Gonal-F NGP, inform women and men about the time commitment and monitoring procedures necessary to undergo treatment .

17.2 Instructions on a Missed Dose

Inform women and men that if they miss or forget to take a dose of Gonal-F NGP, the next dose should not be doubled and they should call the healthcare provider for further dosing instructions.

17.3 Ovarian Hyperstimulation Syndrome

Inform women regarding the risks with use of Gonal-F NGP of Ovarian Hyperstimulation Syndrome and associated symptoms including lung and blood vessel problems and ovarian torsion .

17.4 Multi-fetal Gestation and Birth

Inform women regarding the risk of multi-fetal gestations with the use of Gonal-F NGP .

Manufactured for: Merck Sharp & Dohme Corp., a subsidiary of

MERCK & CO., INC., Whitehouse Station, NJ 08889, USA

Manufactured by: N.V. Organon, Oss, The Netherlands, a subsidiary of

Merck & Co., Inc., Whitehouse Station, NJ 08889, USA

For patent information: www.merck.com/product/patent/home.html

Copyright © 2005, 2010 Merck Sharp & Dohme B.V., a subsidiary of Merck & Co., Inc. All rights reserved.

Revised: 12/2013

uspi-mk8328-SOi-1312r007

PATIENT INFORMATION LEAFLET

Follistim® (Fol´-lis-tim) AQ

(follitropin beta injection)

Single-Use Vial

Read the Patient Information that comes with Follistim® AQ before you start using it and each time you get a refill. There may be new information. This information does not take the place of talking with your healthcare provider about your medical condition or treatment.

What is Gonal-F NGP?

Gonal-F NGP is a prescription medicine that contains follicle-stimulating hormone (FSH).

Gonal-F NGP is used:

In women:


In men:


Who should not take Gonal-F NGP?

Do not take Gonal-F NGP if you are a Woman or Man who:


Do not take Gonal-F NGP if you are a Woman who:


Talk to your healthcare provider before taking this medicine if you have any of the conditions listed above.

What should I tell my healthcare provider before taking Gonal-F NGP?

Before you take Gonal-F NGP, tell your healthcare provider if you:


Tell your healthcare provider about all the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements.

Know the medicines you take. Keep a list of them and show your healthcare provider and pharmacist when you get a new medicine.

How should I use Gonal-F NGP?


Women:


Men:


What are the possible side effects of Gonal-F NGP?

Gonal-F NGP may cause serious side effects.

Serious side effects in women include:


The most common side effects of Gonal-F NGP include:

In women:


In men:


These are not all the possible side effects of Gonal-F NGP. For more information, ask your healthcare provider or pharmacist.

Call your healthcare provider immediately if you get worsening or strong abdominal pain. Also, call your healthcare provider immediately if this happens some days after the last injection has been given.

Tell your healthcare provider if you have any side effect that bothers you or that does not go away.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

How should I store Gonal-F NGP?


Keep Gonal-F NGP and all medicines out of the reach of children.

General information about Gonal-F NGP

Medicines are sometimes prescribed for purposes other than those listed in the Patient Information leaflet. Do not use Gonal-F NGP for a condition for which it was not prescribed. Do not give Gonal-F NGP to other people, even if they have the same condition that you have. It may harm them.

This Patient Information leaflet summarizes the most important information about Gonal-F NGP. If you would like more information, talk with your healthcare provider. You can ask your pharmacist or healthcare provider for more information about Gonal-F NGP that is written for healthcare professionals.

For more information, go to www.follistim.com or call 1-866-836-5633.

What are the ingredients in Gonal-F NGP?

Active ingredient: Gonal-F NGP beta

Inactive ingredients: sucrose, sodium citrate, L-methionine, polysorbate 20, water for injection, hydrochloric acid, and/or sodium hydroxide.

Manufactured for: Merck Sharp & Dohme Corp., a subsidiary of

MERCK & CO., INC., Whitehouse Station, NJ 08889, USA

Manufactured by: N.V. Organon, Oss, The Netherlands, a subsidiary of

Merck & Co., Inc., Whitehouse Station, NJ 08889, USA

For patent information: www.merck.com/product/patent/home.html

Copyright © 2005, 2010 Merck Sharp & Dohme B.V., a subsidiary of Merck & Co., Inc. All rights reserved.

Revised: 12/2013

usppi-mk8328-SOi-1312r007

PATIENT INSTRUCTIONS FOR USE

Follistim® (Fol´-lis-tim) AQ

(follitropin beta injection)

Single-Use Vial

Read the Patient Instructions for Use that comes with Follistim® AQ before you start using it and each time you get a refill. There may be new information. This information does not take the place of talking with your healthcare provider about your medical condition or treatment.

A. Getting Ready


B. Preparing your Gonal-F NGP Injection


C. Draw up your Dose


D. Remove the Air


E. Selecting and Preparing the Injection Site

Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8

Manufactured for: Merck Sharp & Dohme Corp., a subsidiary of

MERCK & CO., INC., Whitehouse Station, NJ 08889, USA

Manufactured by: N.V. Organon, Oss, The Netherlands, a subsidiary of

Merck & Co., Inc., Whitehouse Station, NJ 08889, USA

For patent information: www.merck.com/product/patent/home.html

Copyright © 2005, 2010 Merck Sharp & Dohme B.V., a subsidiary of Merck & Co., Inc. All rights reserved.

Revised: 12/2013

usppi-mk8328-SOi-1312r007

Gonal-F NGP pharmaceutical active ingredients containing related brand and generic drugs:


Gonal-F NGP available forms, composition, doses:


Gonal-F NGP destination | category:


Gonal-F NGP Anatomical Therapeutic Chemical codes:


Gonal-F NGP pharmaceutical companies:


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References

  1. Dailymed."GONAL-F RFF (FOLLITROPIN ALFA) KIT [EMD SERONO, INC.]". https://dailymed.nlm.nih.gov/dailym... (accessed August 28, 2018).
  2. "Follitropin". https://pubchem.ncbi.nlm.nih.gov/su... (accessed August 28, 2018).
  3. "Follitropin - DrugBank". http://www.drugbank.ca/drugs/DB0006... (accessed August 28, 2018).

Frequently asked Questions

Can i drive or operate heavy machine after consuming Gonal-F NGP?

Depending on the reaction of the Gonal-F NGP after taken, if you are feeling dizziness, drowsiness or any weakness as a reaction on your body, Then consider Gonal-F NGP not safe to drive or operate heavy machine after consumption. Meaning that, do not drive or operate heavy duty machines after taking the capsule if the capsule has a strange reaction on your body like dizziness, drowsiness. As prescribed by a pharmacist, it is dangerous to take alcohol while taking medicines as it exposed patients to drowsiness and health risk. Please take note of such effect most especially when taking Primosa capsule. It's advisable to consult your doctor on time for a proper recommendation and medical consultations.

Is Gonal-F NGP addictive or habit forming?

Medicines are not designed with the mind of creating an addiction or abuse on the health of the users. Addictive Medicine is categorically called Controlled substances by the government. For instance, Schedule H or X in India and schedule II-V in the US are controlled substances.

Please consult the medicine instruction manual on how to use and ensure it is not a controlled substance.In conclusion, self medication is a killer to your health. Consult your doctor for a proper prescription, recommendation, and guidiance.

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Review

sdrugs.com conducted a study on Gonal-F NGP, and the result of the survey is set out below. It is noteworthy that the product of the survey is based on the perception and impressions of the visitors of the website as well as the views of Gonal-F NGP consumers. We, as a result of this, advice that you do not base your therapeutic or medical decisions on this result, but rather consult your certified medical experts for their recommendations.

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The information was verified by Dr. Rachana Salvi, MD Pharmacology

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