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Active Pharma Ingredients / 02 Aug 2026

ACALISIB

Generic Name: ACALISIB

ABSTRACT -

Acalisib, also known as GS-9820 or CAL-120, is an investigational oral small-molecule inhibitor of phosphoinositide 3-kinase (PI3K), with activity directed mainly against the delta isoform and also described against beta/delta PI3K targets. It has been studied for potential antineoplastic and immunomodulating activity in lymphoid malignancies and other cancer-related research settings. By inhibiting PI3K signaling, acalisib reduces production of the second messenger phosphatidylinositol-3,4,5-trisphosphate (PIP3), which can suppress downstream survival signaling, decrease malignant cell proliferation, and promote tumor-cell death. Acalisib remains an investigational compound and is not established as a routine approved treatment for general clinical use.

DOSAGE –

Acalisib is an investigational anticancer agent and should only be administered under an approved clinical trial protocol or under the direction of qualified oncology specialists.

  • Studied as an oral medication in clinical research settings.
  • Early clinical studies evaluated twice-daily dosing schedules.
  • Dose levels explored in research included 50 mg to 400 mg twice daily, depending on the study design and treatment cohort.
  • No standard commercial dose has been established for routine medical use.
  • Dose interruption, reduction, or discontinuation may be required if clinically significant toxicity occurs.
  • Patients or study participants should follow all protocol-specific dosing, monitoring, laboratory testing, and follow-up instructions.

SIDE EFFECTS –

Reported or potential side effects may include:

  • Diarrhea or loose stools
  • Nausea or vomiting
  • Loss of appetite
  • Fatigue, weakness, or malaise
  • Headache
  • Fever or chills
  • Cough, sore throat, or upper respiratory symptoms
  • Rash or itching
  • Mouth irritation or sores
  • Abdominal discomfort
  • Joint or muscle pain
  • Changes in liver function tests
  • Low white blood cell count, anemia, or low platelet count
  • Infections, which may be serious in immunocompromised patients
  • Elevated blood sugar or other laboratory abnormalities

ALLRGIC REACTIONS–

(These symptoms may indicate an allergic reaction to the medicine.)

  • Skin rash
  • Itching
  • Hives
  • Swelling of the face, lips, tongue, or throat
  • Difficulty breathing or wheezing
  • Chest tightness
  • Severe dizziness or fainting
  • Rapid heartbeat
  • Anaphylaxis or severe hypersensitivity reaction

DRUG INTERACTIONS - 

Formal drug-interaction information is limited because acalisib remains investigational. Caution should be exercised when used with:

  • Strong CYP3A inhibitors or inducers, when relevant to protocol requirements or investigator guidance
  • Other anticancer therapies that may increase overlapping toxicity
  • Immunosuppressive medications or high-dose corticosteroids
  • Medicines that increase infection risk or affect immune response
  • Medicines associated with liver toxicity
  • Anticoagulants or antiplatelet medicines in patients with bleeding risk or low platelet counts
  • Other investigational medicines, vaccines, herbal products, or supplements unless permitted by the protocol

Patients should inform healthcare providers about all prescription medicines, non-prescription medicines, vitamins, herbal products, vaccines, and supplements being used.

PRECAUTIONS –

  • Use only in appropriate research or specialist oncology settings unless otherwise authorized by regulatory authorities.
  • Assess baseline blood counts, liver function, kidney function, infection status, and other protocol-required laboratory values before treatment.
  • Monitor for diarrhea, infection, rash, liver enzyme elevation, cytopenias, and other clinically important adverse events during therapy.
  • Use caution in patients with active infection, significant immune suppression, liver disease, uncontrolled diabetes, or poor general condition.
  • Temporary interruption or discontinuation may be needed for severe or persistent adverse reactions.
  • Safety during pregnancy and breastfeeding has not been established; effective contraception may be required in clinical trial settings.
  • Patients should avoid self-medication and should not change doses without medical supervision.
  • Report fever, persistent diarrhea, unusual bleeding, jaundice, severe rash, or breathing problems promptly.

WARNINGS –

  • Acalisib is investigational and has not been established for routine general medical use.
  • PI3K pathway inhibitors may be associated with serious adverse reactions, including severe diarrhea or colitis, infection, liver toxicity, pneumonitis-like lung inflammation, rash, and blood count abnormalities.
  • Severe infections or opportunistic infections may occur, especially in patients with weakened immune systems or prior intensive cancer therapy.
  • Serious allergic reactions, although uncommon, require immediate medical attention.
  • Clinical use should be supervised by trained healthcare professionals with access to appropriate monitoring and emergency care.
  • Keep out of reach of children.
  • In case of suspected overdose, severe adverse reaction, difficulty breathing, or rapidly worsening symptoms, seek immediate medical attention.
  • Patients should report unusual symptoms or side effects to their healthcare provider or clinical investigator promptly.

Have any questions? or Need help Contact us – 022 6163 6163 | support@medicus.com

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