GONAL-F - follitropin alfa
EMD Serono, Inc.
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HIGHLIGHTS OF PRESCRIBING INFORMATIONThese highlights do not include all the information needed to use GONAL-F® safely and effectively. See full prescribing information for Gonal-F®
GONAL-F® (follitropin alfa) for injection, for subcutaneous use Initial U.S. Approval: 1997 INDICATIONS AND USAGEGONAL-F is a gonadotropin indicated for:
DOSAGE AND ADMINISTRATIONInduction of Ovulation (2.3)
Development of Multiple Follicles in Assisted Reproductive Technology (ART) (2.3)
Males with Hypogonadotropic Hypogonadism and Azoospermia (2.4)
DOSAGE FORMS AND STRENGTHSCONTRAINDICATIONSGONAL-F is contraindicated in women and men who exhibit (4):
GONAL-F is also contraindicated in women who exhibit (4):
WARNINGS AND PRECAUTIONS
ADVERSE REACTIONS
To report SUSPECTED ADVERSE REACTIONS, contact EMD Serono at 1-800-283-8088, Ext 5563 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. See 17 for PATIENT COUNSELING INFORMATION. Revised: 11/2023 |
Gonal-F is indicated for:
Only physicians who are experienced in infertility treatment, should treat women with GONAL-F. GONAL-F is a gonadotropins product capable of causing in women, Ovarian Hyperstimulation Syndrome (OHSS) with or without pulmonary or vascular complications [see Warnings and Precautions (5.2, 5.3)] and multiple births [see Warnings and Precautions (5.6)]. Gonadotropin therapy requires the availability of appropriate monitoring facilities [see Warnings and Precautions (5.11)]. Use the lowest effective dose of GONAL-F.
Give careful attention to the diagnosis of infertility and the selection of candidates for GONAL-F therapy [see Dosage and Administration (2.3, 2.4)].
Prior to initiation of treatment with GONAL-F:
The dosing scheme is stepwise and is individualized for each woman [see Clinical Studies (14.1)].
Prior to initiation of treatment with GONAL-F:
The dosing scheme follows a stepwise approach and is individualized for each woman.
Prior to initiation of treatment with GONAL-F:
The dosing scheme follows a stepwise approach and is individualized for each man.
GONAL-F is contraindicated in women and men who exhibit:
GONAL-F is also contraindicated in women who exhibit:
In the postmarketing experience, serious systemic hypersensitivity reactions, including anaphylaxis, have been reported with use of GONAL-F and GONAL-F RFF. Symptoms have included dyspnea, facial edema, pruritis, and urticaria. If an anaphylactic or other serious allergic reaction occurs, initiate appropriate therapy including supportive measures if cardiovascular instability and/or respiratory compromise occur, and discontinue further use.
Ovarian Hyperstimulation Syndrome (OHSS) is a medical entity distinct from uncomplicated ovarian enlargement and may progress rapidly to become a serious medical event. 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 development of OHSS are severe pelvic pain, nausea, vomiting, and weight gain. Abdominal pain, abdominal distension, gastrointestinal symptoms including nausea, vomiting and diarrhea, severe ovarian enlargement [see Warnings and Precautions (5.6)], 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 [see Warnings and Precautions (5.4)]. Transient liver function test abnormalities suggestive of hepatic dysfunction with or without morphologic changes on liver biopsy, have 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 [see Dosage and Administration (2.2, 2.3)], withhold hCG. Cases of OHSS are more common, more severe, and more protracted if pregnancy occurs; therefore, assess women for the development of OHSS for at least two weeks after hCG administration.
If serious OHSS occurs, stop gonadotropins, including GONAL-F and hCG, and consider whether the woman needs to be hospitalized. Treatment is primarily symptomatic and overall consists of bed rest, fluid and electrolyte management, and analgesics (if needed). Because the use of diuretics can accentuate the diminished intravascular volume, avoid diuretics except in the late phase of resolution as described below. The management of OHSS is divided into three phases as follows:
OHSS increases the risk of injury to the ovary. Avoid pelvic examination or intercourse, as these may cause rupture of an ovarian cyst, which may result in hemoperitoneum.
If bleeding occurs and requires surgical intervention, control the bleeding and retain as much ovarian tissue as possible. A physician experienced in the management of this syndrome, or who is experienced in the management of fluid and electrolyte imbalances should be consulted.
Serious pulmonary conditions (for example, atelectasis, acute respiratory distress syndrome and exacerbation of asthma) have been reported in women treated with gonadotropins, including GONAL-F. In addition, thromboembolic events both in association with, and separate from OHSS have been reported in women treated with gonadotropins, including GONAL-F. Intravascular thrombosis and embolism, which may originate in venous or arterial vessels, can result in reduced blood flow to critical organs or the extremities. Women with generally recognized risk factors for thrombosis, such as 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 infarctions. In rare cases, pulmonary complications and/or thromboembolic reactions have resulted in death. In women with recognized risk factors, the benefits of ovulation induction and Assisted Reproductive Technology (ART) need to be weighed against the risks. It should be noted that pregnancy also carries an increased risk of thrombosis.
Ovarian torsion has been reported after treatment with gonadotropins, including GONAL-F. This may be related to OHSS, pregnancy, previous abdominal surgery, past history of ovarian torsion, previous or current ovarian cyst and polycystic ovaries. Early diagnosis and immediate detorsion limit damage to the ovary due to reduced blood supply.
In order to minimize the hazards associated with abnormal ovarian enlargement that may occur with GONAL-F therapy, individualize treatment and use the lowest effective dose [see Dosage and Administration (2.2, 2.3)]. Use of ultrasound monitoring of ovarian response and/or measurement of serum estradiol levels is important to minimize the risk of ovarian stimulation [see Warnings and Precautions (5.12)].
If the ovaries are abnormally enlarged on the last day of GONAL-F therapy, do not administer hCG in order to reduce the chance of developing Ovarian Hyperstimulation Syndrome (OHSS) [see Warnings and Precautions (5.2)]. Prohibit intercourse for women with significant ovarian enlargement after ovulation because of the danger of hemoperitoneum resulting from rupture of ovarian cysts [see Warnings and Precautions (5.2)].
Multi-fetal gestation and births have been reported with all gonadotropin therapy, including therapy with GONAL-F.
During clinical trials with GONAL-F, multiple births occurred in 20% of live births in women receiving therapy for ovulation induction and 35.1% of live births in women undergoing ART. Advise the woman and her partner of the potential risk of multi-fetal gestation and birth before beginning therapy with GONAL-F.
The incidence of congenital malformations after some ART [specifically in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI)] may be slightly higher than after spontaneous conception. This slightly higher incidence is thought to be related to differences in parental characteristics (e.g., maternal age, maternal and paternal genetic background, sperm characteristics) and to the higher incidence of multi-fetal gestations after IVF or ICSI. There are no indications that the use of gonadotropins during IVF or ICSI is associated with an increased risk of congenital malformations.
Since infertile women undergoing ART often have tubal abnormalities, the incidence of ectopic pregnancy may be increased in women who become pregnant as a result of ART. Advise women who become pregnant following ART and have: abdominal/pelvic pain (particularly on one side); shoulder, neck or rectal pain; and nausea and vomiting to seek immediate medical attention. Confirm the presence of an intrauterine pregnancy early by β-hCG testing and transvaginal ultrasound.
The risk of spontaneous abortion (miscarriage) is increased with gonadotropin products, including GONAL-F. However, causality has not been established. The increased risk may be a factor of the underlying infertility.
There have been infrequent reports of ovarian neoplasms, both benign and malignant, in women who have had multiple drug therapy for controlled ovarian stimulation, however, a causal relationship has not been established.
In most instances, treatment of women with GONAL-F will result only in follicular recruitment and development. In the absence of an endogenous LH surge, hCG is given to trigger ovulation when monitoring of the woman indicates that sufficient follicular development has occurred. This may be estimated by ultrasound alone or in combination with measurement of serum estradiol levels. The combination of both ultrasound and serum estradiol measurement are useful for monitoring follicular growth and maturation, timing of the ovulatory trigger, detecting ovarian enlargement and minimizing the risk of the OHSS and multiple gestation.
The clinical confirmation of ovulation is obtained by direct or indirect indices of progesterone production as well as sonographic evidence of ovulation.
Direct or indirect indices of progesterone production:
Sonographic evidence of ovulation:
The following serious adverse reactions are discussed elsewhere in the labeling:
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 trial of another drug and may not reflect the rates observed in practice.
Women:
The safety of GONAL-F was examined in four clinical trials that enrolled 691 women [two trials for ovulation induction (454 women) and two trials for ART (237 women)].
Induction of Ovulation
In a randomized, open-labeled, multicenter, active-controlled trial in oligo-anovulatory infertile women, conducted in the U.S., a total of 118 oligo-anovulatory infertile women were randomized to and underwent ovulation induction with GONAL-F versus a comparator urofollitropin. Adverse reactions occurring in at least 5.0% of women receiving GONAL-F are listed in Table 1.
System Organ Class/Adverse Reactions | GONAL-F N=118* (288 treatment cycles†) n‡ (%) |
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Body as a Whole - General | |
Pain | 6 (5.1%) |
Central and Peripheral Nervous System | |
Headache | 12 (10.2%) |
Gastrointestinal System | |
Abdominal Pain | 9 (7.6%) |
Nausea | 7 (5.9%) |
Flatulence | 7 (5.9%) |
Reproductive, Female | |
Intermenstrual Bleeding | 6 (5.1) |
Ovarian Hyperstimulation | 8 (6.8%) |
Ovarian Cyst | 17 (14.4%) |
Development of Multiple Follicles as part of an Assisted Reproductive Technology (ART) Cycle
In a randomized, open-labeled, active-comparator trial conducted in the U.S., a total of 56 normal ovulatory infertile women were randomized and received GONAL-F versus a urofollitropin comparator as part of an ART [in vitro fertilization (IVF) or intracytoplasmic sperm injection cycle (ICSI)] cycle. All women received pituitary down-regulation with gonadotropin releasing hormone (GnRH) agonist before stimulation. Adverse Reactions occurring in at least 5.0% of women are listed in Table 2.
System Organ Class/Adverse Reactions | GONAL-F (N=56*) n† (%) |
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Central and Peripheral Nervous System | |
Headache | 7 (12.5%) |
Gastrointestinal System | |
Abdominal Pain | 3 (5.4%) |
Nausea | 4 (7.1%) |
Reproductive, Female | |
Pelvic Pain | 4 (7.1) |
Induction of Spermatogenesis:
The safety of GONAL-F for induction of spermatogenesis in men with primary or secondary hypogonadotropic hypogonadism was examined in 3 open-label, non-randomized, multi-center, multi-national, escalating dose clinical trials (Trials 1, 2 and 3) conducted in in 76 adult men (aged 16 to 48 years) with primary or secondary hypogonadotropic hypogonadism (defined as serum testosterone <100 ng/mL and low or normal FSH and LH) and azoospermia (sperm concentration <0.1×106/mL). Of the 76 men enrolled, 63 received treatment with GONAL-F.
During these trials, there was one serious adverse reaction of gynecomastia requiring surgical excision of breast tissue in a 50 year old man who received 9 months of therapy with Gonal-F. Pathology report showed gynecomastia with no atypia.
There were no discontinuations due to adverse reactions.
Adverse reactions reported in Trials 1, 2 and 3 by ≥2 patients during treatment with Gonal-f are shown in Table 3.
N=63 n (%) |
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Acne | 17 (27) |
Injection site pain | 7 (11) |
Gynecomastia | 4 (6) |
Seborrhea | 3 (5) |
Fatigue | 6 (10) |
Libido decreased | 2 (3) |
In addition to adverse events reported from clinical trials, the following adverse reactions have been reported during postmarketing use of GONAL-F. Because these reactions were reported voluntarily from a population of uncertain size, the frequency or a causal relationship to GONAL-F cannot be reliably determined.
Body as a Whole - General: Hypersensitivity reactions including anaphylaxis
Respiratory System: Asthma exacerbation
Vascular Disorders: Thromboembolism
Risk Summary
GONAL-F is not indicated in pregnant women
The incidence of congenital malformations after some Assisted Reproductive Technology, specifically in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI)], may be slightly higher than that after spontaneous conception. This slightly higher incidence is thought to be related to differences in parental characteristics (e.g., maternal age, maternal and paternal genetic background, sperm characteristics) and to a higher incidence of multi-fetal gestations after IVF or ICSI. There is no human data that the use of gonadotropins (including GONAL-F) alone or as part of IVF or ICSI cycles, increases the risk of congenital malformations.
The risk of spontaneous abortion (miscarriage) is increased in women who have used gonadotropins products (including GONAL-F) to achieve pregnancy.
In animal studies, the continuous administration of recombinant human FSH during pregnancy resulted in a decrease in the number of viable fetuses and difficult and prolonged delivery. No teratogenic effect has been observed.
In the US general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively.
Data
Human Data
Data on a limited number of exposed pregnancies indicate no adverse reactions of gonadotropins on pregnancy, embryonal or fetal development, parturition or postnatal development following controlled ovarian stimulation.
Animal Data
Embryofetal development studies with recombinant human FSH in rats, where dosing occurred during organogenesis, showed a dose dependent increase in difficult and prolonged parturition in dams, and dose dependent increases in resorptions, pre- and post-implantation losses, and stillborn pups at doses representing 5 and 41 times the lowest clinical dose of 75 International Units based on body surface area. Pre-/post-natal development studies with recombinant human FSH in rats, where dosing occurred from mid-gestation through lactation, showed difficult and prolonged parturition in all dams dosed at 41 times the lowest clinical dose of 75 International Units based on body surface area, along with maternal death and stillborn pups associated with the difficult and prolonged parturition. This toxicity was not observed in dams and offspring dosed at a level 5 times the lowest clinical dose of 75 International Units based on body surface area.
There are no data on the presence of GONAL-F in human milk, the effects on the breastfed infant, or the effects on milk production. Because the secretion of prolactin during lactation can result in inadequate response to ovarian stimulation, advise women not to breast feed during treatment with GONAL-F.
Because GONAL-F is not indicated in pregnant women, verify a negative pregnancy test before administering GONAL-F to a woman [see Dosage and Administration (2.3, 2.4)].
Ovarian hyperstimulation syndrome (OHSS) and multiple gestations have been observed in women with GONAL-F overdosage [see Warnings and Precautions (5.2,5.6)].
Follitropin alfa, a gonadotropin [human follicle stimulating hormone (hFSH)], is a glycoprotein hormone produced by recombinant DNA technology in a Chinese Hamster Ovary (CHO) cell line. It has a dimeric structure containing two glycoprotein subunits (alpha and beta). The alpha and beta subunits have 92 and 111 amino acids, respectively, and their primary and tertiary structures are indistinguishable from those of human follicle stimulating hormone. The molecular weight is approximately 31 kDa (14 kDa for alpha subunit and 17 kDa for beta subunit).
GONAL-F (follitropin alfa) for injection is a sterile, lyophilized powder intended for subcutaneous injection after reconstitution.
Each multiple-dose vial of GONAL-F containing either 450 International Units (33 mcg) or 1050 International Units (77 mcg) follitropin alfa and the inactive ingredients dibasic sodium phosphate (0.89 mg), monobasic sodium phosphate (0.39 mg), and sucrose (30 mg). Phosphoric acid and/or sodium hydroxide may be used prior to lyophilization for pH adjustment. After reconstitution with supplied 1 mL of with Bacteriostatic Water for Injection (0.9% benzyl alcohol), USP, the resultant concentration is 600 IU/mL with a pH of approximately 6.5 to 7.5.
Under current storage conditions, GONAL-F may contain up to 10% of oxidized follitropin alfa.
GONAL-F stimulates ovarian follicular growth in women who do not have primary ovarian failure. In order to bring about final maturation of the follicle and ovulation in the absence of an endogenous LH surge, human chorionic gonadotropin (hCG) must be given, following the administration of GONAL-F, when monitoring of the patient indicates that sufficient follicular development is achieved.
GONAL-F stimulates spermatogenesis in men with hypogonadotropic hypogonadism when administered with hCG.
Serum inhibin, estradiol, and total follicular volume responded as a function of time, with pronounced inter-woman variability in healthy volunteers administered GONAL-F. Pharmacodynamic effect lagged behind FSH serum concentration. Serum inhibin levels responded with the least delay and declined rapidly after discontinuation of GONAL-F. Follicular growth was most delayed and continued even after discontinuation of GONAL-F, and after serum FSH levels had declined. Maximum follicular volume correlated better with inhibin and estradiol peak levels than with FSH concentration. Inhibin rise was an early index of follicular development.
FSH serum levels following fixed (during the first five days) and then adjusted doses of GONAL-F were found to be poor predictors of follicular growth rate. High pre-treatment serum FSH levels may predict lower follicular growth rates.
Inhibin levels reached a plateau during the entire administration period and then returned to baseline despite high inter-male variation and the absence of down-regulation in healthy male volunteers administered GONAL-F.
Single dose and state-state pharmacokinetics of follitropin alfa were determined following subcutaneous administration of GONAL-F to healthy, down-regulated female volunteers, healthy adult male volunteers, and pituitary down-regulated women undergoing in vitro fertilization and embryo transfer (IVF/ET). The pharmacokinetic parameters of follitropin alfa following subcutaneous administration of GONAL-F are presented in Table 4.
Population | Female | Male | |||
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Healthy Female Volunteers | IVF/ET Patients | Healthy Male Volunteers | |||
Dose (IU) | Single Dose (150 IU) | Multiple Dose (7 × 150 IU) | Multiple Dose (5 × 225 IU), | Single Dose (225 IU) | Multiple Dose (7 × 225 IU) |
AUC=area under the concentration-time curve; CL/F=apparent clearance; Cmax=peak serum concentration; Tmax=time of Cmax; t1/2=half-life; Vd=volume of distribution | |||||
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General Information | |||||
AUC (IU*hr/L) | 176 ± 87 | 187 ± 61* | --- | 220 ± 109 | 186 ± 23* |
Cmax (IU/L) | 3 ± 1 | 9 ± 3 | --- | 2.5 ± 0.8 | 8.3 ± 0.9 |
Absorption | |||||
Absolute Bioavailability (%) | 66 ± 39 | --- | --- | --- | |
Tmax (hr) | 16 ± 10 | 8 ± 6 | --- | 20 ± 14 | 10.7 ± 6.7 |
Distribution | |||||
Apparent Vd (L) | ------ | --- | 10 ± 3 | --- | --- |
Elimination† | |||||
t1/2 terminal (hr)‡ | 24 ± 11 | 24 ± 8 | 32 | 41 ± 14 | 32 ± 4 |
CL/F (L/hr)§ | ------ | --- | 0.7 ± 0.2 | 0.86 ± 0.48 | 0.90 ± 0.12 |
Long- term studies in animals have not been performed to evaluate the carcinogenic potential of GONAL-F. However, follitropin alfa showed no mutagenic activity in a series of tests performed to evaluate its potential genetic toxicity including, bacterial and mammalian cell mutation tests, a chromosomal aberration test and a micronucleus test.
Impaired fertility has been reported in rats, exposed to pharmacological doses of follitropin alfa (greater than or equal to 40 International Units per kg per day, greater than or equal to 5 times the lowest clinical dose of 75 International Units) for extended periods, through reduced fecundity.
The safety and efficacy of GONAL-F were examined in a randomized, open-label, multicenter, active-controlled trial conducted in the U.S in oligo-anovulatory infertile women. Women were randomized to GONAL-F , administered subcutaneously, or a comparator urofollitropin product, administered intramuscularly.
The primary efficacy parameter was the ovulation rate. Two hundred and thirty-two women received treatment for up to three cycles with GONAL-F (118 women ) or urofollitropin (114 women).
Ovulation results for women who received treatment with GONAL-F in at least one cycle are summarized in Table 5.
Cycle | Gonal-F (n=118) | |
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Cumulative* Percent Ovulation | Cumulative* Clinical Pregnancy† Rate | |
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Cycle 1 | 58%‡ | 13%§ |
Cycle 2 | 72%§ | 25%§ |
Cycle 3 | 81%§ | 37§ |
For the 44 woman in the GONAL-F group who achieved clinical pregnancy, 22.7 % did not reach a term pregnancy, 63.6% had singleton births and 13.7% had multiple births.
An additional randomized, open-label, multinational, multicenter trial, active-comparator trial was conducted in oligo-anovulatory infertile women who failed to ovulate or conceive following adequate clomiphene citrate therapy. Results for the primary efficacy outcome of cumulative percent ovulation at Cycle 1 were similar to those presented in Table 5 for the U.S. ovulation induction trial.
The efficacy of GONAL-F in ART, was evaluated in a randomized,open-label, multicenter, active-controlled trial conducted ith the U.S, in ovulatory, infertile women undergoing stimulation of multiple follicles for In Vitro Fertilization (IVF) and Embryo Transfer (ET). All women received a gonadotrophin releasing hormone (GnRH) agonist for pituitary down-regulation before randomization and administration of GONAL-F (n=56) or a comparator urofollitropin product (n=58). The primary efficacy endpoint was the number of mature pre-ovulatory follicles on the day of hCG administration. The trial was not powered to demonstrate differences in secondary outcomes.
Treatment outcomes for a single IVF cycle with controlled stimulation with GONAL-F are summarized in Table 6.
Gonal-F (n=56) | |
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Mean number of follicles ≥ 14mm diameter on day of hCG* (n=50) | 7.2 |
Mean number of oocytes recovered per patient† (n=49) | 9.3 |
Mean Serum E2 (pg/mL) on day of hCG† (n=46) | 1221 |
Mean treatment duration in days (range)† (n=56) | 10.1 (5-15) |
Clinical pregnancy‡rate per attempt† (n=56) | 20% |
Clinical pregnancy‡ rate per embryo transfer† (n=47) | 23% |
For the 11 woman in the GONAL-F group who achieved clinical pregnancy, 36.3% did not reach a term pregnancy, 36.3% had singleton births and 27.3% had multiple births.
An additional randomized, open-label, multinational, multicenter study in ovulatory infertile women was conducted in non-U.S. countries. Women were randomized to receive either GONAL-F by subcutaneous administration (60 women) or urofollitropin by intramuscular administration (63 women) after down-regulation of the pituitary with a GnRH agonist. The primary efficacy parameter was the number of mature pre-ovulatory follicles on the day of hCG administration. Results over a single IVF cycle for the primary efficacy outcome of mature pre-ovulatory follicles on the day of hCG administration were similar to the primary efficacy results presented in Table 6 for the U.S.ART trial.
The efficacy of GONAL-F administered concomitantly with human chorionic gonadotropin (hCG) for induction of spermatogenesis in men with hypogonadotropic hypogonadism was established in three open-label, uncontrolled, non-randomized, multi-center, multi-national, escalating dose clinical trials (Trials 1, 2 and 3) conducted in 78 adult men (aged 16 to 48 years) with primary or secondary hypogonadotropic hypogonadism (defined as serum testosterone <100 ng/mL and low or normal FSH and LH) and azoospermia (sperm concentration <0.1×106/mL). Men were required at study entry to have normal serum cortisol and prolactin levels and be euthyroid. Men less than 21 years of age were required to have either confirmed anosmia or documented bone age >15 years to be eligible for study participation. Enrolled men received three to six months of pretreatment with hCG injection to normalize serum testosterone levels, followed by 18 months of treatment with GONAL-F and hCG.
Of the 78 men enrolled in the trials, 63 men were treated with GONAL-F and hCG.
Characteristics of the trial populations are shown in Table 7.
Trial 1 N=32 | Trial 2 N=10 | Trial 3 N=36 | |
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Median age (range) (years) | 26 (16-48) | 37 (26-48) | 30 (20-44) |
Race n(%) | |||
Caucasian | 31 (97) | 7 (70) | 31 (86) |
Asian | 1 (3) | 3 (30) | 3 (8) |
African-American | 0 | 0 | 0 |
Other | 0 | 0 | 2 (6) |
Prior treatment with gonadotropin (FSH) or GnRH* agonist† (%) | 0 | 5 (50) | 4 (11) |
Mean (SD) testis volume (mL)‡ | 2 (1) | 5 (3) | 4 (1) |
N(%) with anosmia (i.e. diagnosis of Kallmann's syndrome) | 12 (37) | 2 (20) | 13 (36) |
The primary efficacy measure in all trials was the proportion of men achieving a sperm density ≥ 1.5 × 106/mL during treatment with Gonal-F. Pregnancy (clinical and chemical) in partners of men desiring fertility was a secondary endpoint. Efficacy results in men who received at least one dose of Gonal-F and had at least one follow-up assessment are summarized in Table 8 and Table 9.
Trial 1 (n=26) | Trial 2 (n=8) | Trial 3 (n=29) | |
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Sperm Concentration ≥ 1.5 × 106/mL | |||
Yes | 12 (46.2%) | 5 (62.5%) | 20 (80%) |
No | 14 (53.8%) | 3 (37.5%) | 5 (20%) |
Missing | 4 | ||
95% Confidence Interval | (26.6% - 66.6%) | (24.5% - 91.5%) | (40.7% - 82.8%) |
Trial 1 (n=7)* | Trial 2 (n=10)* | Trial 3 (n=26)*, | |
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Pregnancy | 6 (86%) | 3 (30%) | 5 (19%) |
Pregnancy not reaching term | 1 (14%) | 1 (10%) | 2 (8%) |
Single full-term live births | 5 (71%) | 2 (20%) | 3 (11%) |
The time to achievement of sperm density ≥1.5 × 106/mL is summarized in Table 10.
Trial 1 (n=26) | Trial 2 (n=8) | Trial 3 (n=29) | |
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Number (%) of Men Achieving Sperm Concentration | 22 (76) | ||
n | 12 (46) | 5 (62) | |
Time (Months) to Sperm Concentration ≥ 1.5 × 106/mL | |||
Median | 12.4 | 9.1 | 9 |
Range | (2.7 – 18.1) | (8.8 – 11.7) | (2.8 – 18.2) |
GONAL-F (follitropin alfa) for injection is supplied as a sterile, white lyophilized powder in multiple-dose vials of either 450 International Units per vial or 1050 International Units per vial.
The following package presentations are available:
NDC 44087-9030-1 - One multiple-dose vial of GONAL-F 450 International Units, one-1 mL prefilled diluent syringe of Bacteriostatic Water for Injection, USP (0.9% benzyl alcohol), and six adminstration syringes calibrated in FSH Units (IU FSH) with a fixed 27-gauge × 0.5-inch needle.
NDC 44087-9070-1 - One multiple-dose vial GONAL-F of 1050 International Units, one-2 mL prefilled diluent syringe of Bacteriostatic Water for Injection, USP (0.9% benzyl alcohol), and ten adminstration syringes calibrated in FSH Units (IU FSH) with a fixed 27-gauge × 0.5-inch needle.
Store vials refrigerated between 2°C to 8°C (36°F to 46°F) or at room temperature between 20°C to 25°C (68°F to 77°F).
Store reconstituted solution refrigerated between 2°C to 8°C (36°F to 46°F) or at room temperature between 20°C to 25°C (68°F to 77°F) and discard unused portion after 28 days. Protect from light [see Dosage and Administration (2.2)].
Advise women and men to read the FDA-approved patient labeling (Patient Information and Instructions for Use)
Hypersensitivity Reactions and Anaphylaxis
Advise women and men to discontinue GONAL-F and seek immediate medical attention if any signs or symptoms of a hypersensitivity reaction occur [see Warnings and Precautions (5.1)].
Ovarian Hyperstimulation Syndrome
Inform women regarding the risks of OHSS [see Warnings and Precautions (5.2] and OHSS-associated conditions including pulmonary and vascular complications [see Warnings and Precautions (5.3)] and ovarian torsion [see Warnings and Precautions (5.4)] with the use of GONAL-F. Advise women to seek medical attention if any of these conditions occur.
Abnormal Ovarian Enlargement
Inform women regarding the hazards associated with abnormal ovarian enlargement that may occur with GONAL-F therapy. If the ovaries are abnormally enlarged on the last day of GONAL-F therapy, inform women not to administer hCG and to avoid intercourse [see Warnings and Precautions (5.5)].
Multi-fetal Gestation and Birth
Advise the woman and her partner of the potential risk of multi-fetal gestation and birth before beginning therapy withGONAL-F [see Warnings and Precautions (5.6)].
Embryofetal Toxicity
Inform women that the incidence of congenital malformations (birth defects) after some Assisted Reproductive Technology [(ART) specifically in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI)] may be slightly higher than after spontaneous conception [see Warnings and Precautions (5.7)].
Ectopic Pregnancy
Inform women undergoing ART that the incidence of ectopic pregnancy may be increased with these procedures, particularly for women with tubal abnormalities. Advise women who become pregnant and have: abdominal/pelvic pain (particularly on one side); shoulder, neck or rectal pain; and nausea and vomiting to seek immediate medical attention [see Warnings and Precautions (5.8)].
Spontaneous Abortion
Inform women that the risk of spontaneous abortion (miscarriage) is increased with gonadotropin products (including GONAL-F). However, causality has not been established. The increased risk may be a factor of the underlying infertility [see Warnings and Precautions (5.9)].
Lactation
Advise women not to breastfeed because the secretion of prolactin during lactation can result in inadequate response to ovarian stimulation with Gonal-F [see Use in Specific Populations (8.2)].
Dosing and Use of GONAL-F Multi Dose
Instruct women and men on the correct usage and dosing of GONAL-F [see Dosage and Administration (2.3, 2.4 2.5)]. Caution against changing the dosage or the schedule of administration unless instructed to do so by a healthcare provider.
Duration and Necessary Monitoring in Patients Undergoing Therapy with GONAL-F
Prior to beginning therapy with GONAL-F, inform women and men about the time commitment and monitoring procedures necessary for treatment [see Dosage and Administration (2.3, 2.4, 2.5) and Warnings and Precautions (5.11)].
NDC 44087-9030-1
GONAL-f®
(follitropin alfa) for injection
450 IU/vial
For subcutaneous injection
Rx only
1 Multiple-dose vial
1 pre-filled syringe of Bacteriostatic Water
for Injection, USP (0.9% benzyl alcohol)
6 administration syringes with fixed needle
(27-gauge)
EMD
SERONO
NDC 44087-9070-1
GONAL-f®
(follitropin alfa) for injection
1050 IU/vial
For subcutaneous injection
Rx only
1 Multiple-dose vial
1 pre-filled syringe of Bacteriostatic Water
for Injection, USP (0.9% benzyl alcohol)
10 administration syringes with fixed needle
(27-gauge)
EMD
SERONO
GONAL-F
follitropin alfa kit |
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GONAL-F
follitropin alfa kit |
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Labeler - EMD Serono, Inc. (088514898) |