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Related Concept Videos

Drug Toxicity: Allergic Reactions01:30

Drug Toxicity: Allergic Reactions

Drug-related allergies are immune-mediated responses triggered by the administration of pharmacological agents. These hypersensitivity reactions are classified based on the immune mechanisms involved. The four primary types—Type I, II, III, and IV—are mediated by different immunological pathways and exhibit distinct clinical manifestations.Type I Hypersensitivity/ IgE-Mediated Reactions: Immunoglobulin E (IgE) immediately mediates Type I hypersensitivity reactions. Upon initial exposure to a...
Hypersensitivity Reactions: Cytolytic Reactions01:01

Hypersensitivity Reactions: Cytolytic Reactions

Type II hypersensitivity involves IgG and IgM antibodies targeting cell surface antigens, leading to cell destruction. This can occur through complement activation, antibody-dependent cell-mediated cytotoxicity (ADCC), or acting as opsonins for phagocytosis. When excessive, these reactions cause significant tissue damage.Drug-induced hemolytic anemia is a common example, where drugs like penicillin or cephalosporins bind to red blood cells, forming drug-protein complexes. These complexes...
Hypersensitivities01:30

Hypersensitivities

Hypersensitivity, also known as a hypersensitivity reaction or allergic reaction, is a condition where the body's immune system reacts abnormally to a foreign substance. Such substances, that cause hypersensitivity are referred to as an allergen, could be something typically harmless to most people, like pollen or certain foods.
Types of Hypersensitivities
Hypersensitivity reactions are categorized into four types: Type 1, Type 2, Type 3, and Type 4. Each type has a distinct mechanism...
Chemotherapy-Induced Nausea and Vomiting: Neurokinin-1 Receptor Antagonists01:28

Chemotherapy-Induced Nausea and Vomiting: Neurokinin-1 Receptor Antagonists

Neurokinin 1 (NK1) receptors are distributed across the GI tract, vagal afferents, and key CNS regions including the central vomiting center and chemoreceptor trigger zone (CTZ) Chemotherapy agents stimulate enterochromaffin cells in the gastrointestinal (GI) tract to release large amounts of substance P (SP). SP is a neuropeptide released by specific sensory nerves in response to many different stressors, including those in the GI mucosa affected by chemotherapy.  SP binds and activates these...
Hypersensitivity Reactions: Delayed Hypersensitivity Reactions01:29

Hypersensitivity Reactions: Delayed Hypersensitivity Reactions

Delayed-Type Hypersensitivity (DTH), or Type IV hypersensitivity, is a cell-mediated immune response. It occurs when T cells, rather than antibodies, mediate a reaction to specific antigens. It is characterized by a delayed onset (1-2 days) and involves the recruitment of macrophages to the inflammation site.The initiation of a DTH response begins with the sensitization of T cells. During this phase, which lasts at least 1-2 weeks, antigen-specific T cells are activated, clonally expanded, and...
Drug toxicity: Idiosyncratic Reactions01:16

Drug toxicity: Idiosyncratic Reactions

Idiosyncratic drug reactions represent abnormal chemical responses that vary significantly among individuals, ranging from extreme sensitivity to low doses to insensitivity to high doses. These reactions often occur due to the drug's covalent binding with serum proteins, forming a foreign hapten that triggers an immunotoxicological response. The variability in drug reactions has a strong pharmacogenetic foundation, with genetic differences crucial in how individuals metabolize drugs. For...

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Related Experiment Video

Updated: Jun 28, 2026

Potentiation of Anticancer Antibody Efficacy by Antineoplastic Drugs: Detection of Antibody-drug Synergism Using the Combination Index Equation
15:04

Potentiation of Anticancer Antibody Efficacy by Antineoplastic Drugs: Detection of Antibody-drug Synergism Using the Combination Index Equation

Published on: January 19, 2019

Hypersensitivity to antineoplastic agents.

M C Castells1

  • 1One Jimmy Fund Way, Smith Building, Room 626D, Boston, MA 02115, USA. mcastells@partners.org

Current Pharmaceutical Design
|November 11, 2008
PubMed
Summary
This summary is machine-generated.

Rapid desensitization enables cancer patients to receive chemotherapy and monoclonal antibodies despite hypersensitivity reactions (HSRs). A universal 12-step protocol demonstrated high safety and efficacy in 413 cases, allowing completion of first-line cancer therapy.

Related Experiment Videos

Last Updated: Jun 28, 2026

Potentiation of Anticancer Antibody Efficacy by Antineoplastic Drugs: Detection of Antibody-drug Synergism Using the Combination Index Equation
15:04

Potentiation of Anticancer Antibody Efficacy by Antineoplastic Drugs: Detection of Antibody-drug Synergism Using the Combination Index Equation

Published on: January 19, 2019

Area of Science:

  • Oncology
  • Allergy and Immunology
  • Clinical Pharmacology

Background:

  • Hypersensitivity reactions (HSRs) to chemotherapy and monoclonal antibodies pose a challenge for first-line cancer treatment.
  • Rapid desensitization protocols allow patients with a history of HSRs to receive necessary medications.

Purpose of the Study:

  • To evaluate the safety and efficacy of a universal 12-step rapid desensitization protocol for chemotherapy and monoclonal antibodies.
  • To assess the feasibility of administering first-line cancer therapies in patients experiencing HSRs.

Main Methods:

  • A universal 12-step protocol was applied to 413 patients undergoing rapid desensitization for various chemotherapy agents (taxanes, platin, doxorubicin) and monoclonal antibodies.
  • Desensitization involved slow administration of incremental drug doses to achieve temporary tolerization.
  • Procedures were conducted with one-to-one nurse care and immediate availability of resuscitation resources.

Main Results:

  • All 413 patients successfully completed their target therapeutic dose.
  • 94% of patients experienced limited or no hypersensitivity reactions during treatment.
  • The procedure demonstrated a high safety profile with no reported deaths or emergency codes.

Conclusions:

  • The universal 12-step rapid desensitization protocol is safe and effective for administering first-line chemotherapy and monoclonal antibodies in patients with HSRs.
  • This approach enables cancer patients to receive crucial treatments, including those in clinical studies, who might otherwise be ineligible.
  • Rapid desensitization is a viable strategy for managing hypersensitivity reactions, facilitating continuous cancer therapy.