Lupron Depot-Ped 11.25mginj/1 Mth

Manufacturer ABBVIE Active Ingredient Leuprolide Injection (CPP)(loo PROE lide) Pronunciation loo PROE lide
It is used to delay puberty in children who are maturing too early.
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Drug Class
Gonadotropin-releasing hormone (GnRH) agonist
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Pharmacologic Class
Gonadotropin-releasing hormone (GnRH) analog
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Pregnancy Category
Category X
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FDA Approved
Apr 1993
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DEA Schedule
Not Controlled

Overview

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What is this medicine?

Lupron Depot-Ped is a medicine used to treat Central Precocious Puberty (CPP) in children. CPP is when puberty starts too early. This medicine works by temporarily stopping the hormones that cause puberty, helping to slow down or stop the physical changes of puberty until the child is older. It is given as an injection once a month.
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How to Use This Medicine

To ensure your child takes this medication correctly, follow the instructions provided by their doctor and carefully read all accompanying information. Administer the medication exactly as directed, and be sure to follow all instructions closely. This medication is administered via injection.

For proper storage and disposal of this medication, consult with your child's doctor, nurse, or pharmacist to determine the best approach if you need to store it at home.

If a dose is missed, contact your child's doctor immediately to receive guidance on the next steps to take.
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Lifestyle & Tips

  • Ensure regular monthly injections are given on schedule (every 28 to 31 days) to maintain effectiveness.
  • Keep track of injection dates and schedule future appointments.
  • Maintain a healthy diet and exercise routine as recommended by the doctor.
  • Monitor for any changes in pubertal signs or new symptoms and report them to the healthcare provider.
  • Understand that some initial pubertal signs (e.g., vaginal bleeding/spotting in girls) may occur during the first few weeks of treatment due to the 'flare effect'.

Dosing & Administration

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Adult Dosing

Standard Dose: Not indicated for adult use in this specific pediatric formulation (Lupron Depot-Ped).
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Pediatric Dosing

Neonatal: Not established
Infant: Not established
Child: For Central Precocious Puberty (CPP): 11.25 mg administered as a single subcutaneous injection once every month (28 to 31 days). The dose should be individualized based on the child's weight and response to therapy. For children weighing less than 25 kg, a lower dose (7.5 mg) may be used. For children weighing 25-37.5 kg, 11.25 mg. For children weighing over 37.5 kg, 15 mg. This specific product is 11.25mg.
Adolescent: For Central Precocious Puberty (CPP): 11.25 mg administered as a single subcutaneous injection once every month (28 to 31 days). Treatment should be discontinued at the appropriate age for onset of puberty or when the child reaches the desired pubertal stage.
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Dose Adjustments

Renal Impairment:

Mild: No specific dose adjustment recommended.
Moderate: No specific dose adjustment recommended.
Severe: No specific dose adjustment recommended.
Dialysis: No specific recommendations; leuprolide is a peptide and not significantly cleared by dialysis.

Hepatic Impairment:

Mild: No specific dose adjustment recommended.
Moderate: No specific dose adjustment recommended.
Severe: No specific dose adjustment recommended.

Pharmacology

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Mechanism of Action

Leuprolide is a synthetic nonapeptide analog of naturally occurring gonadotropin-releasing hormone (GnRH). It acts as a potent inhibitor of gonadotropin secretion when given continuously. Initially, it causes a transient increase in luteinizing hormone (LH) and follicle-stimulating hormone (FSH) secretion from the pituitary gland (flare effect). However, continuous administration of leuprolide leads to desensitization and downregulation of GnRH receptors in the pituitary, resulting in a profound decrease in LH and FSH secretion. This, in turn, leads to a significant reduction in ovarian and testicular steroidogenesis, suppressing the production of sex hormones (estradiol and testosterone) to prepubertal levels, thereby arresting the progression of central precocious puberty.
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Pharmacokinetics

Absorption:

Bioavailability: Nearly complete after subcutaneous injection.
Tmax: Approximately 4 hours after subcutaneous injection of the depot formulation.
FoodEffect: Not applicable for injectable formulation.

Distribution:

Vd: Approximately 27 L (for leuprolide acetate).
ProteinBinding: 43% to 49%
CnssPenetration: Limited

Elimination:

HalfLife: Approximately 3 hours (for leuprolide acetate, but the depot formulation provides sustained release over 1 month).
Clearance: Approximately 7.6 L/hr (for leuprolide acetate).
ExcretionRoute: Primarily renal (approximately 50% of a dose) and fecal (approximately 20% of a dose) as inactive metabolites.
Unchanged: Less than 5% of the administered dose is excreted unchanged in urine.
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Pharmacodynamics

OnsetOfAction: Initial transient increase in LH/FSH and sex steroids within the first 1-2 weeks (flare effect), followed by suppression within 2-4 weeks.
PeakEffect: Suppression of LH/FSH and sex steroids to prepubertal levels typically achieved within 4 weeks of initiation.
DurationOfAction: One month (for the 11.25 mg depot formulation).

Safety & Warnings

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Side Effects

Urgent Side Effects: Seek Medical Help Right Away

Although rare, some people may experience severe and potentially life-threatening side effects when taking this medication. If your child exhibits any of the following symptoms, contact their doctor or seek immediate medical attention:

Signs of an allergic reaction, such as:
+ Rash
+ Hives
+ Itching
+ Red, swollen, blistered, or peeling skin with or without fever
+ Wheezing
+ Tightness in the chest or throat
+ Trouble breathing, swallowing, or talking
+ Unusual hoarseness
+ Swelling of the mouth, face, lips, tongue, or throat
Fast heartbeat
Fever
Seizures
Swelling or numbness in the arms or legs
Abnormal vaginal bleeding
Vaginal itching or discharge
Severe bone pain
Chest pain
Pituitary apoplexy (a rare but serious condition that can occur within 2 weeks of the first dose), characterized by:
+ Sudden headache
+ Vomiting
+ Fainting
+ Mood changes
+ Eye weakness
+ Inability to move eyes
+ Changes in vision
Behavioral and mood changes, including:
+ Aggression
+ Crying
+ Depression
+ Emotional instability
+ Restlessness
+ Irritability
+ Suicidal thoughts or actions
Raised intracranial pressure, which may cause:
+ Headache
+ Vision problems (e.g., blurred vision, double vision, loss of vision)
+ Pain behind the eye
+ Pain when moving the eye
+ Ringing in the ears
+ Dizziness
+ Severe stomach upset
Severe skin reactions, including:
+ Stevens-Johnson syndrome (SJS)
+ Toxic epidermal necrolysis (TEN)
+ Other serious reactions that can affect internal organs and be life-threatening
+ Signs of severe skin reactions may include:
- Red, swollen, blistered, or peeling skin
- Red or irritated eyes
- Sores in the mouth, throat, nose, eyes, genitals, or skin
- Fever
- Chills
- Body aches
- Shortness of breath
- Swollen glands

Other Possible Side Effects

Like all medications, this drug can cause side effects. While many people may not experience any side effects or only minor ones, it's essential to monitor your child's condition and contact their doctor if any of the following side effects occur or persist:

Irritation at the injection site
Headache
Hot flashes
Excessive sweating
Acne
Weight gain
Constipation
Diarrhea
Stomach pain
Upset stomach
Vomiting
Common cold symptoms
Nose or throat irritation
Cough
Arm or leg pain
* Back pain

This is not an exhaustive list of potential side effects. If you have concerns or questions, consult your child's doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
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Seek Immediate Medical Attention If You Experience:

  • Signs of allergic reaction: rash, hives, itching, swelling of face/lips/tongue/throat, difficulty breathing or swallowing, dizziness.
  • New or worsening headaches, especially if severe or persistent.
  • Vision changes.
  • Mood changes, emotional lability, or depression.
  • Seizures (rare).
  • Significant pain, redness, swelling, or a lump at the injection site that does not resolve.
  • Continued or worsening signs of puberty after the initial flare period (e.g., continued breast growth, menstrual bleeding, rapid growth spurt).
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Before Using This Medicine

Before Giving This Medication to Your Child: Inform Your Doctor If:
- Your child has an allergy to this medication, any of its components, or any other medications, foods, or substances. Be sure to discuss the specifics of the allergy and the symptoms your child experienced.

Pregnancy Considerations:
- This medication should not be given to your child if they are pregnant, as it may pose risks to the unborn baby.

Potential Interactions and Precautions:
- This medication can interact with other medications or exacerbate existing health conditions. Therefore, it is crucial to inform your doctor and pharmacist about all the medications your child is taking, including prescription and over-the-counter drugs, natural products, and vitamins.
- Ensure that you discuss all of your child's health problems with the doctor to verify the safety of this medication in conjunction with their other treatments and conditions.
- Do not initiate, discontinue, or adjust the dosage of any medication your child is taking without first consulting with the doctor to confirm it is safe to do so.
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Precautions & Cautions

It is essential to inform all of your child's healthcare providers, including doctors, nurses, pharmacists, and dentists, that your child is taking this medication. Regular blood tests will be necessary, as directed by the doctor, to monitor your child's condition. Be sure to discuss any concerns or questions with the doctor.

This medication may interfere with certain laboratory tests, so it is crucial to notify all healthcare providers and laboratory personnel that your child is taking this drug.

During the initial few weeks of treatment, this medication may cause an increase in certain hormone levels in your child's body. As a result, signs of puberty, such as vaginal bleeding or spotting, may occur or worsen before improving. If your child experiences any new symptoms or if puberty signs persist after 2 months of treatment, notify the doctor.

In some cases, this medication may affect growth in children and teenagers. To monitor this potential effect, regular growth checks may be necessary. Discuss this with the doctor to determine the best course of action.

For children of childbearing age, a pregnancy test will be required before starting this medication to confirm that they are not pregnant.

This medication may temporarily affect fertility during treatment, which could lead to difficulty conceiving. However, fertility typically returns to normal once the medication is discontinued. If you have concerns about this potential effect, consult with the doctor.

If your child is sexually active or may become sexually active:

If your child is using birth control, it is recommended to use a non-hormonal method, such as condoms, to prevent pregnancy while taking this medication.

If your child is pregnant or breastfeeding:

If your child becomes pregnant or is already pregnant while taking this medication, contact the doctor immediately, as this medication may harm the unborn baby.
* If your child is breastfeeding, inform the doctor to discuss any potential risks to the baby and determine the best course of action.
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Overdose Information

Overdose Symptoms:

  • Exaggerated pharmacological effects (e.g., initial flare of pubertal signs, headache, hot flashes).
  • Injection site reactions.

What to Do:

There is no specific antidote for leuprolide overdose. Treatment is symptomatic and supportive. Contact a poison control center immediately (e.g., 1-800-222-1222 in the US) or seek emergency medical attention.

Drug Interactions

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Moderate Interactions

  • Drugs that prolong the QT interval (theoretical risk, though leuprolide itself is not known to prolong QT significantly, caution with other QT-prolonging agents is prudent).

Monitoring

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Baseline Monitoring

Clinical assessment of pubertal status (Tanner staging)

Rationale: To confirm diagnosis of CPP and establish baseline pubertal development.

Timing: Prior to initiation of therapy.

Bone age determination (X-ray of left hand and wrist)

Rationale: To assess skeletal maturation and predict adult height potential.

Timing: Prior to initiation of therapy.

Height and weight

Rationale: To monitor growth velocity and overall development.

Timing: Prior to initiation of therapy.

Basal and/or GnRH-stimulated LH and FSH levels

Rationale: To confirm central precocious puberty and establish baseline gonadotropin levels.

Timing: Prior to initiation of therapy.

Sex steroid levels (e.g., estradiol in girls, testosterone in boys)

Rationale: To confirm central precocious puberty and establish baseline sex hormone levels.

Timing: Prior to initiation of therapy.

Pelvic ultrasound (girls)

Rationale: To assess uterine and ovarian size.

Timing: Prior to initiation of therapy.

MRI of brain (with contrast)

Rationale: To rule out intracranial pathology (e.g., tumor) as a cause of CPP.

Timing: Prior to initiation of therapy.

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Routine Monitoring

Clinical assessment of pubertal status (Tanner staging)

Frequency: Every 3-6 months

Target: Regression or stabilization of pubertal signs.

Action Threshold: Progression of pubertal signs may indicate inadequate suppression or need for dose adjustment.

Height and weight, growth velocity

Frequency: Every 3-6 months

Target: Normalization of growth velocity to prepubertal rates.

Action Threshold: Accelerated growth velocity may indicate inadequate suppression.

GnRH-stimulated LH levels (or basal LH if sensitive assay used)

Frequency: Every 1-3 months initially, then every 3-6 months once suppression is achieved.

Target: LH levels < 4 mIU/mL (or prepubertal levels) after GnRH stimulation.

Action Threshold: LH levels > 4 mIU/mL after stimulation may indicate inadequate suppression; consider dose adjustment or adherence check.

Sex steroid levels (estradiol/testosterone)

Frequency: Every 3-6 months

Target: Prepubertal levels (e.g., estradiol < 5-10 pg/mL, testosterone < 20 ng/dL).

Action Threshold: Elevated sex steroid levels indicate inadequate suppression.

Bone age determination

Frequency: Every 6-12 months

Target: Slowing or stabilization of bone age advancement.

Action Threshold: Rapid bone age advancement indicates inadequate suppression.

Injection site monitoring

Frequency: At each visit

Target: Minimal redness, swelling, or pain.

Action Threshold: Significant or persistent local reactions.

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Symptom Monitoring

  • Progression of pubertal signs (breast development, pubic hair, testicular enlargement, menstrual bleeding)
  • Headache
  • Mood changes (emotional lability, depression)
  • Hot flashes
  • Vaginal bleeding/spotting (especially in first few weeks of treatment)
  • Injection site reactions (pain, redness, swelling, induration)
  • Signs of allergic reaction (rash, itching, difficulty breathing)

Special Patient Groups

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Pregnancy

Contraindicated in pregnancy (Category X). Leuprolide can cause fetal harm when administered to a pregnant woman. Pregnancy must be excluded before starting treatment.

Trimester-Specific Risks:

First Trimester: High risk of fetal harm, including miscarriage and birth defects, due to hormonal effects.
Second Trimester: High risk of fetal harm.
Third Trimester: High risk of fetal harm.
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Lactation

Contraindicated during lactation (L5 - contraindicated). It is not known whether leuprolide is excreted in human milk. Due to the potential for serious adverse reactions in the nursing infant, 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.

Infant Risk: High risk (potential for hormonal disruption in the infant).
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Pediatric Use

This formulation (Lupron Depot-Ped) is specifically indicated and dosed for pediatric patients with Central Precocious Puberty (CPP). Safety and efficacy have been established in this population.

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Geriatric Use

Not indicated for geriatric use in this specific formulation. Leuprolide is used in older adults for prostate cancer, but different formulations and dosing apply.

Clinical Information

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Clinical Pearls

  • Lupron Depot-Ped is a long-acting formulation; strict adherence to the monthly (28-31 day) injection schedule is crucial for optimal suppression of puberty.
  • An initial 'flare effect' (transient increase in pubertal signs, including vaginal bleeding/spotting in girls) may occur during the first 1-2 weeks of treatment. This is expected and usually resolves.
  • Regular monitoring of LH, FSH, sex steroids, bone age, and clinical pubertal staging is essential to confirm adequate suppression and guide treatment duration.
  • Treatment should be individualized and continued until the appropriate age for onset of puberty or when the child reaches the desired pubertal stage, as determined by the treating endocrinologist.
  • The injection site should be rotated to prevent lipohypertrophy or other local reactions. The product must be reconstituted immediately before administration and administered subcutaneously.
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Alternative Therapies

  • Other GnRH agonists for CPP: Triptorelin (e.g., Trelstar, Decapeptyl), Histrelin implant (Supprelin LA), Leuprolide acetate (other depot formulations like Lupron Depot 3.75 mg, 7.5 mg, 15 mg, 30 mg, or daily subcutaneous injections).
  • For specific cases, other approaches might be considered, but GnRH agonists are the standard of care for true central precocious puberty.
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Cost & Coverage

Average Cost: $2,000 - $3,500 per 11.25 mg vial (monthly dose)
Insurance Coverage: Specialty Tier (requires prior authorization, often subject to high co-pays or co-insurance)
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General Drug Facts

If your child's symptoms or health issues persist or worsen, it is essential to contact their doctor promptly. To ensure safety and efficacy, never share your child's medication with others, and do not administer someone else's medication to your child. Store all medications in a secure location, out of reach of children and pets, to prevent accidental ingestion. Dispose of unused or expired medications properly; do not flush them down the toilet or pour them down the drain unless instructed to do so by a healthcare professional or pharmacist. For guidance on the proper disposal method, consult with your pharmacist, and consider participating in local drug take-back programs.

This medication is accompanied by a Medication Guide, which provides crucial information for safe use. Read this guide carefully and review it each time the medication is refilled to ensure you understand the necessary precautions and potential side effects. If you have any questions or concerns about this medication, consult with your doctor, pharmacist, or other healthcare provider.

In the event of a suspected overdose, immediately contact your local poison control center or seek emergency medical attention. Be prepared to provide detailed information about the overdose, including the medication taken, the quantity, and the time it occurred, to facilitate prompt and effective treatment.