Product image of Imukin (Recombinant Human Interferon Gamma 1b) supplied by GNH India

Imukin

Active Ingredient:
Recombinant Human Interferon Gamma 1b
Origin:
EU

Imukin (Recombinant Human Interferon Gamma 1b)

Recombinant human interferon gamma-1b, the active ingredient in Imukin, is an immunomodulator presented as a subcutaneous injectable for subcutaneous use. It is used to treat chronic granulomatous disease and severe malignant osteopetrosis in patients with these rare immune and bone disorders, by enhancing macrophage microbicidal activity, reducing infection-related morbidity, and supporting overall immune competence in affected patients.

GNH India supplies Imukin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, transplant centres, oncology centres, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Clinigen Healthcare B.V.

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Indications & Clinical Uses

Imukin (recombinant human interferon gamma‑1b) is employed in rare disorders where enhancement of cellular immunity and bone remodeling is required, acting through the interferon‑gamma signaling pathway to boost host defenses.

  • Chronic granulomatous disease: improves macrophage microbicidal activity, reduces severe bacterial and fungal infections, decreases infection‑related morbidity, and supports overall immune competence in affected patients.
  • Severe malignant osteopetrosis: stimulates osteoclast differentiation and function, facilitating bone resorption, improving skeletal remodeling, and helping to manage the excessive bone density characteristic of this disorder.

How It Works

  • Recombinant human interferon gamma‑1b binds to the interferon‑gamma receptor (IFN‑γR) on immune cells, activating the JAK‑STAT signaling cascade. This leads to phosphorylation of STAT1, transcription of interferon‑stimulated genes, enhanced antigen presentation, increased macrophage activation, and promotion of Th1‑type immune responses, thereby augmenting host defense and modulating bone remodeling. The downstream effects also include up‑regulation of major histocompatibility complex class II expression and increased production of cytokines such as IL‑12, which further drive cellular immunity.

Side Effects

Imukin may be associated with a range of adverse reactions, varying from mild to serious.

Common Side Effects

  • Flu‑like symptoms: fever, chills, myalgia, and fatigue.
  • Injection site reactions: redness, swelling, or pain at the injection site.
  • Gastrointestinal upset: nausea, abdominal pain, or diarrhea.
  • Headache: mild to moderate intensity.

Serious or Rare Side Effects

  • Hematologic abnormalities: anemia, leukopenia, or thrombocytopenia.
  • Hepatic dysfunction: elevated transaminases or hepatitis.
  • Autoimmune phenomena: development of lupus‑like syndrome or vasculitis.
  • Severe allergic reactions: anaphylaxis or serum sickness.

Precautions & Warnings

Prior to initiating Imukin, clinicians should consider several safety and handling precautions.

  • Pregnancy: potential risk to the fetus; use only if benefits outweigh risks.
  • Breastfeeding: unknown excretion in milk; caution advised.
  • Pre‑existing autoimmune disease: may exacerbate underlying condition.
  • Hepatic impairment: monitor liver function tests regularly.
  • Hematologic monitoring: periodic blood counts are recommended.
  • Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Avoid Interactions

Imukin can interact with other medicines, altering efficacy or safety.

Major Interactions (Avoid)

  • Live vaccines: concurrent use may increase risk of severe infection.
  • Immunosuppressants (e.g., high‑dose corticosteroids): may diminish therapeutic effect.

Moderate Interactions (Monitor Closely)

  • Antiviral agents (e.g., ribavirin): potential additive hematologic toxicity.
  • Anticoagulants (e.g., warfarin): possible alteration of coagulation parameters.
  • Cytotoxic chemotherapy: may enhance myelosuppression.

Frequently Asked Questions

Imukin (recombinant human interferon gamma‑1b) is indicated for the treatment of chronic granulomatous disease, a primary immunodeficiency characterized by defective macrophage killing, and for severe malignant osteopetrosis, a rare bone disorder where enhanced osteoclast activity is needed. It works by stimulating immune and bone‑remodeling pathways under medical supervision.

The molecule binds to the interferon‑gamma receptor on immune cells, triggering the JAK‑STAT pathway. Activated STAT1 translocates to the nucleus, inducing genes that increase antigen presentation, macrophage microbicidal activity, and Th1‑type cytokine production, while also promoting osteoclast differentiation, thereby supporting host defense and bone turnover.

The dosage of Imukin is individualized by the prescribing physician based on the patient’s age, weight, disease severity, and clinical response. The prescriber determines the appropriate subcutaneous injection volume and frequency, and adjustments are made according to therapeutic monitoring and tolerability.

The safety of Imukin in pregnancy has not been established; it should be used only if the potential benefit justifies the potential risk to the fetus. Data on excretion in human milk are lacking, so breastfeeding is generally not recommended unless the benefit to the mother outweighs possible risks to the infant.

To request Imukin, visit the product page on gnhindia.com, enter the desired quantity, and submit the enquiry form. GNH India works with hospitals, pharmacies, and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, cold‑chain shipping details, and required import documentation.

Compared with other immunostimulants such as recombinant interleukin‑2 or granulocyte‑macrophage colony‑stimulating factor, Imukin specifically activates the interferon‑gamma pathway, leading to pronounced macrophage activation and Th1 polarization. Its clinical use is limited to the two rare indications, whereas other agents may have broader oncology or transplant applications but different safety profiles.

Imukin must be stored in a refrigerator at 2 °C to 8 °C. Keep the vials in the original packaging, protect them from light, and avoid freezing or shaking the product. If temperature excursions occur, consult the supplier before use.

Imukin is supplied as a sterile solution for subcutaneous injection. The injection is typically given into the abdomen, thigh, or upper arm using a sterile needle and syringe. Administration should be performed by a healthcare professional or trained caregiver following aseptic technique and the prescriber’s dosing schedule.

Serious adverse events include hematologic abnormalities such as anemia, leukopenia, or thrombocytopenia; hepatic injury manifested by elevated liver enzymes or hepatitis; autoimmune reactions like lupus‑like syndrome; and severe hypersensitivity reactions including anaphylaxis. Patients should be monitored regularly for these conditions and report any concerning symptoms promptly.

Imukin is contraindicated in patients with known hypersensitivity to interferon‑gamma or any excipients in the formulation. It should be used with caution, or avoided, in individuals with active autoimmune disease, uncontrolled hepatic impairment, or those receiving live vaccines, as the drug may exacerbate these conditions.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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