Anti-thymocyte globulin should only be used by physicians experienced in immunosuppressive therapy in transplantation.
Note: Premedicate with corticosteroids, acetaminophen, and/or an antihistamine 1 hour prior to infusion to reduce the incidence and severity of infusion-related reactions. Administer antifungal and antibacterial prophylaxis therapy if clinically indicated. Antiviral prophylaxis is recommended in all patients against herpes simplex virus (Ref) and prophylaxis against cytomegalovirus (CMV) in patients who are CMV-seropositive at the time of transplant and for CMV-seronegative patients scheduled to receive an organ from a CMV-seropositive donor.
Graft-versus-host disease, chronic, prevention (in hematopoietic cell transplantation) (off-label use): IV: 0.5 mg/kg administered 2 days prior to transplant and 2 mg/kg administered 1 day before and 1 day after transplant (Ref) or 2.5 mg/kg once daily for 3 days beginning 3 days prior to transplant (Ref).
Heart transplant, acute cellular rejection, treatment (off-label use): IV: 0.75 to 1.5 mg/kg/day for 5 to 14 days (Ref).
Heart transplant, induction therapy (in high-risk patients) (off-label use): IV: 1 to 1.5 mg/kg once daily for up to 7 days; frequency of dosing may be modified based on CD3 count (eg, repeat dose only administered when CD3 count >25 cells/mm3) (Ref).
Intestinal and multivisceral transplantation, induction therapy (off-label use): IV: 2 mg/kg/day on postoperative days 0, 2, 4, 6, and 8 (in combination with rituximab ± basiliximab) (Ref).
Intestinal transplant, acute cellular rejection, treatment (off-label use): Note: Optimal dose, frequency, and duration of therapy have not been established and vary based on institutional protocols. Administer as part of an appropriate combination regimen.
IV: 1.5 mg/kg once daily for 10 to 14 doses (Ref).
Liver transplant, induction therapy (off-label use): Note: Optimal dose, frequency, and duration of therapy have not been established and vary based on institutional protocols. Administer as part of an appropriate combination regimen.
IV: 1.5 mg/kg every other day for 2 to 3 doses (Ref) or 1.5 mg/kg once daily for 3 doses (Ref).
Liver transplant, severe acute cellular rejection, treatment (off-label use): Note: Optimal dose, frequency, and duration of therapy have not been established and vary based on institutional protocols. Administer as part of an appropriate combination regimen for steroid resistant rejection.
IV: 1 mg/kg to 1.5 mg/kg once daily for 4 to 7 doses (Ref).
Kidney transplant, induction therapy: Note: The manufacturer recommends actual body weight for dosing; however, other strategies have been used. These include ideal body weight (Ref) or cumulative dosing (ie, 5 mg/kg) (Ref); refer to center-specific protocols.
IV: 1.5 mg/kg/day for 4 to 7 days; the first dose should be administered prior to reperfusion of the donor kidney; the dose and duration may vary depending on concurrent maintenance immunosuppression and patient- and/or allograft-specific variables (Ref).
Kidney transplant, rejection: IV: 1.5 mg/kg/day for 7 to 14 days.
Lung transplant, induction therapy (off-label use): IV: 1.5 mg/kg/day for 3 days; the first dose was administered within 24 hours of transplantation (Ref). Additional trials may be necessary to further define the role of antithymocyte globulin (rabbit) for prevention of rejection after lung transplant.
Lung transplant, persistent acute cellular rejection, treatment (off-label use): IV: Pulse treatments have been used to manage persistent acute cellular rejection (Ref). Additional data may be necessary to further define the role of antithymocyte globulin (rabbit) in treatment of acute cellular rejection after lung transplantation.
Pancreas transplant, induction (off-label use): Note: Optimal dose, frequency, and duration of therapy have not been established and vary based on institutional protocols. Administer as part of an appropriate combination regimen.
IV: 1 to 1.5 mg/kg once daily or every other day for 3 to 7 doses (Ref).
Pancreas transplant, severe acute cellular rejection, treatment (off-label use): Note: Optimal dose, frequency, and duration of therapy have not been established and vary based on institutional protocols. Administer as part of an appropriate combination regimen.
IV: 1.5 mg/kg once daily for 5 to 10 doses (Ref).
Dosage adjustment for concomitant therapy: Significant drug interactions exist, requiring dose/frequency adjustment or avoidance. Consult drug interactions database for more information.
There are no dosage adjustments provided in the manufacturer's labeling.
There are no dosage adjustments provided in the manufacturer's labeling.
American Society for Blood and Marrow Transplantation (ASBMT) practice guideline committee position statement on chemotherapy dosing in obesity: Utilize actual body weight (full weight) to calculate mg/kg dosing for hematopoietic stem cell transplant conditioning regimens (Ref).
Solid organ transplantation:
WBC count 2,000 to 3,000 cells/mm3 or platelet count 50,000 to 75,000 cells/mm3: Reduce dose by 50%.
WBC count <2,000 cells/mm3 or platelet count <50,000 cells/mm3: Consider discontinuing or holding dose until counts rebound.
CD3+ lymphocyte count: Thresholds for discontinuing, holding, or decreasing dose vary based on center-specific protocols; length of CD3 suppression depends on type of organ transplant, concurrent immunosuppression, and other organ function (eg, kidney function); one example of dose adjustment based on CD3 count is to discontinue or hold the dose at a CD3 count <25 cells/mm3 and redose when CD3 count is >25 cells/mm3; these strategies require daily to every-other-day CD3 count monitoring (Ref).
Refer to adult dosing.
(For additional information see "Antithymocyte globulin (rabbit derived, Thymoglobulin): Pediatric drug information")
Note: Premedicate with corticosteroids, acetaminophen, and/or an antihistamine 1 hour prior to infusion to reduce the incidence and severity of infusion-related reactions. Administer antifungal and antibacterial prophylaxis therapy if clinically indicated. For use in solid organ transplantation (ie, kidney), antiviral prophylaxis is recommended in patients who are CMV-seropositive at the time of transplant and for CMV-seronegative patients scheduled to receive a kidney from a CMV-seropositive donor.
Aplastic anemia, refractory: Limited data available: Children and Adolescents: IV: 3.5 mg/kg/day once daily for 5 days in combination with cyclosporine (Ref); Note: Consistent with observations in adult patients, rabbit-antithymocyte globulin is less effective than horse-antithymocyte globulin when either combined with cyclosporine in children and adolescents for initial treatment of severe aplastic anemia (Ref)
Hematopoietic stem cell transplant; graft-versus-host disease (GVHD) prevention: Limited data available; regimens and protocols variable; refer to institutional protocols: Infants, Children, and Adolescents: IV: Usual reported TOTAL dose range: 4.5 to 15 mg/kg total divided into 3 to 5 once daily doses administered pretransplant; usual regimen is 3 to 4 doses on consecutive days in combination with chemotherapy or radiation (Ref). In adolescents ≥16 years, a lower total dose and timing approach has been successfully used: IV: 0.5 mg/kg/day 2 days before transplantation, 2 mg/kg/day 1 day before transplantation, and 2 mg/kg/day 1 day after transplantation (total dose: 4.5 mg/kg; in addition to standard GVHD prophylaxis) (Ref)
Solid organ transplantation: Note: Doses and timing may vary; refer to institutional specific protocols:
Kidney transplantation: Infant, Children, and Adolescents:
Induction, prophylaxis: IV: 1.5 mg/kg/dose once daily for 4 to 10 doses initiated at time of transplant prior to reperfusion of donor kidney; during variable and dependent on other immunosuppressive regimens (Ref)
Acute rejection, treatment: IV: 1.5 mg/kg/dose once daily for 7 to 14 days
Heart/lung transplantation: Limited data available: Infant, Children, and Adolescents:
Induction, prophylaxis: Reported range: IV: 1 to 2 mg/kg/dose once daily infused over 12 hours for 5 days; dose dependent on baseline platelet count; in trials the following doses were used based on platelet count (Ref):
>150,000/mm3: IV: 2 mg/kg/dose
100,000 to 150,000/mm3: IV: 1.5 mg/kg/dose
50,000 to <100,000/mm3: IV: 1 mg/kg/dose
Acute rejection, treatment: IV: 2 mg/kg/dose once daily for 5 days (Ref)
Liver, intestinal, or multivisceral transplant: Limited data available: Infants, Children, and Adolescents:
Induction, prophylaxis: IV: Total dose of 5 mg/kg divided into separate pre- and post-op doses: 2 to 3 mg/kg over 6 to 8 hours before allograft reperfusion, followed by the remainder 2 to 3 mg/kg over 6 to 8 hours post-operative; used in combination with other immunosuppressives (Ref)
Rejection: 1.5 mg/kg/dose once daily; duration variable (usually at least 4 to 5 days) based upon biopsy results (Ref)
Dosage adjustment for concomitant therapy: Significant drug interactions exist, requiring dose/frequency adjustment or avoidance. Consult drug interactions database for more information.
There are no dosage adjustments provided in the manufacturer's labeling.
There are no dosage adjustments provided in the manufacturer's labeling.
The following adverse drug reactions and incidences are derived from product labeling unless otherwise specified.
>10%:
Cardiovascular: Hypertension (18% to 37%), hypotension (10% to 16%), peripheral edema (20%), tachycardia (7% to 23%)
Dermatologic: Acne vulgaris (12%), diaphoresis (6% to 13%), skin rash (7% to 13%)
Endocrine & metabolic: Hyperkalemia (17% to 57%), hyperlipidemia (15%), hypokalemia (6% to 12%)
Gastrointestinal: Abdominal pain (8% to 38%), constipation (15% to 33%), diarrhea (6% to 20%), nausea (29% to 37%), vomiting (12% to 20%)
Genitourinary: Urinary tract infection (39% to 42%)
Hematologic & oncologic: Anemia (12% to 25%), leukocytosis (13%), leukopenia (21% to 63%), thrombocytopenia (9% to 37%)
Infection: Cytomegalovirus disease (6% to 13%), infection (17% to 76%; severe infection: 23%), sepsis (6% to 12%)
Nervous system: Anxiety (7% to 14%), chills (9% to 57%), headache (18% to 40%), insomnia (12% to 20%), malaise (9% to 13%), pain (26%)
Neuromuscular & skeletal: Arthralgia (15%), asthenia (13%), back pain (12%), myalgia (11% to 20%)
Respiratory: Dyspnea (15% to 28%), lower respiratory tract infection (≤13%), pulmonary disease (12%), upper respiratory tract infection (11%)
Miscellaneous: Fever (13% to 46%)
1% to 10%:
Cardiovascular: Chest pain (9%), edema (6%)
Dermatologic: Pruritus (6%)
Endocrine & metabolic: Acidosis (6% to 9%), hyperphosphatemia (6% to 7%), hypophosphatemia (6%)
Gastrointestinal: Anorexia (6%), dyspepsia (10%), gastritis (1%), intestinal candidiasis (5%), oral candidiasis (6%)
Hematologic & oncologic: Lymphoproliferative disorder (posttransplant: 2%), malignant neoplasm (4%)
Hypersensitivity: Serum sickness (1% to 2%)
Infection: Herpes simplex infection (5%), herpes zoster infection (5%)
Respiratory: Increased cough (7%), nasopharyngitis (5%)
<1%: Hypersensitivity: Anaphylactic shock
Frequency not defined: Miscellaneous: Infusion related reactions
Postmarketing:
Hematologic & oncologic: Disorder of hemostatic components of blood, disseminated intravascular coagulation, febrile neutropenia, malignant lymphoma, malignant solid tumor
Hepatic: Increased serum transaminases
Hypersensitivity: Anaphylaxis, cytokine release syndrome
Miscellaneous: Reactivation of disease
Hypersensitivity (allergy or anaphylaxis) to rabbit proteins or any component of the formulation; active acute or chronic infection which contraindicate additional immunosuppression
Concerns related to adverse effects:
• Hematologic effects: Reversible leukopenia, neutropenia, thrombocytopenia, and lymphopenia may occur. Monitor blood counts. Leukopenia and/or thrombocytopenia may require dosage adjustment.
• Hypersensitivity: Hypersensitivity and fatal anaphylactic reactions have been reported. Stop infusion immediately if anaphylactic reaction occurs. Immediate treatment (including subcutaneous epinephrine and corticosteroids) should be available during infusion for management of hypersensitivity.
• Infection: Severe infections (bacterial, fungal, viral and/or protozoal) may develop following concomitant use of immunosuppressants with antithymocyte globulin. Reactivation of infections (particularly CMV) and sepsis have been reported. Appropriate antiviral, antibacterial, antiprotozoal, and/or antifungal prophylaxis is recommended. Monitor closely for infection.
• Infusion reactions: Release of cytokines by activated monocytes and lymphocytes may lead to cytokine release syndrome (CRS) during infusion; may cause serious cardiopulmonary events (sometimes fatal). Rapid infusion rates have been associated with CRS (case reports). Other infusion reaction symptoms, including flu-like symptoms (fever, chills, nausea, muscle/joint pain) may also occur. Local infusion site reactions (pain, swelling, skin redness) have been reported.
• Malignancy: Immunosuppressants, including antithymocyte globulins may increase the incidence of malignancies, including lymphoma, post-transplant lymphoproliferative disease (PTLD) or other malignancies; may be fatal.
Concurrent drug therapy issues:
• Immunizations: Patients should not be immunized with attenuated live viral vaccines during or shortly after treatment; safety of immunization following therapy has not been studied.
Disease-related concerns:
• Liver transplantation induction: Antithymocyte globulin (rabbit) has been associated with increased adverse effects when used for induction in liver transplantation and should be used cautiously in this population (Boillot 2009)
Other warnings/precautions:
• Administration: Initial dose must be administered over at least 6 hours into a high flow vein. Reducing the infusion rate (and prolonging the administration time) may minimize infusion reactions. May pretreat with an antipyretic, antihistamine, and/or corticosteroid.
• Experienced physician: [US Boxed Warning]: Should only be used by physicians experienced in immunosuppressive therapy in transplantation. Maintenance immunosuppression may require dosage reduction. Medical surveillance is required during the infusion. Should be administered in combination with other immunosuppressants.
• Product selection: Antithymocyte globulin (ATG) (rabbit) is available (based on region) in different product formulations, ATG-Thymoglobulin and ATG-Fresenius; the dosing differs among the formulations. Dosing of antithymocyte globulin (rabbit) also differs from dosing of other antithymocyte globulin products (eg, ATG [equine]); protein compositions and concentrations are different. Use caution to ensure dose prescribed is intended for product being administered.
Excipient information presented when available (limited, particularly for generics); consult specific product labeling.
Solution Reconstituted, Intravenous:
Thymoglobulin: 25 mg (1 ea) [contains glycine, mannitol, sodium chloride]
No
Solution (reconstituted) (Thymoglobulin Intravenous)
25 mg (per each): $1,279.39
Disclaimer: A representative AWP (Average Wholesale Price) price or price range is provided as reference price only. A range is provided when more than one manufacturer's AWP price is available and uses the low and high price reported by the manufacturers to determine the range. The pricing data should be used for benchmarking purposes only, and as such should not be used alone to set or adjudicate any prices for reimbursement or purchasing functions or considered to be an exact price for a single product and/or manufacturer. Medi-Span expressly disclaims all warranties of any kind or nature, whether express or implied, and assumes no liability with respect to accuracy of price or price range data published in its solutions. In no event shall Medi-Span be liable for special, indirect, incidental, or consequential damages arising from use of price or price range data. Pricing data is updated monthly.
Excipient information presented when available (limited, particularly for generics); consult specific product labeling.
Solution Reconstituted, Intravenous:
Thymoglobulin: 25 mg (1 ea)
IV: Infuse the first dose over at least 6 hours; subsequent doses may be infused over at least 4 hours. Infuse through a high-flow vein (central line). Administer through an in-line 0.22 micron filter. Premedication with corticosteroids, acetaminophen, and/or an antihistamine 1 hour prior to infusion may reduce the incidence and severity of infusion-related reactions. Reducing the infusion rate may minimize infusion reactions. Infusion rate may vary for off-label uses; refer to specific protocol.
In kidney transplantation, administration through a peripheral vein has been reported with the addition of 1,000 units heparin and 20 mg hydrocortisone (in 500 mL NS only) to decrease the risk of thrombosis and phlebitis (Ref). The first 2 doses were infused over 6 hours and subsequent doses were infused over 4 hours (Ref). Some centers choose not to use additives and administer the dose at a concentration of 1 mg/mL diluted in NS, with the first dose administered over 4 to 6 hours and subsequent doses over 2 to 4 hours (Ref).
Parenteral: Administer by slow IV infusion over 6 to 12 hours for the preconditioning/induction dose or over 6 hours for the initial acute rejection treatment dose; infuse over 4 hours for subsequent doses if first dose tolerated. Administer through an in-line filter with pore size of 0.22 microns via central line or high flow vein. Premedication with corticosteroids, acetaminophen, and/or an antihistamine may reduce infusion-related reactions.
Kidney transplant rejection: Prophylaxis and treatment of acute rejection in kidney transplantation (in conjunction with concomitant immunosuppression).
Note: In a multicenter, double-blind, randomized trial, antithymocyte globulin (rabbit) was shown to be superior to antithymocyte globulin (equine) in reversing acute rejection and preventing subsequent episodes (Gaber 1998). Based on data from studies (including 10 years follow up) comparing ATG (rabbit) to ATG (equine) for induction, ATG (rabbit) has emerged as the T-cell lymphocyte depleting induction therapy of choice over ATG (equine) in adult kidney transplantation due to its improved efficacy and lower incidence of acute rejection (Brennan 1999; Hardinger 2008).
Chronic graft-versus-host disease, prevention (in hematopoietic cell transplantation); Heart transplant, acute cellular rejection, treatment; Heart transplant, induction therapy; Intestinal and multivisceral transplantation, induction therapy; Intestinal transplant, acute cellular rejection, treatment; Liver transplant, induction therapy; Liver transplant, severe acute cellular rejection, treatment; Lung transplant, induction therapy; Lung transplant, persistent acute cellular rejection, treatment; Pancreas transplant, induction therapy; Pancreas transplant, severe acute cellular rejection, treatment
Antithymocyte globulin rabbit (Thymoglobulin) may be confused with antithymocyte globulin equine (Atgam)
The Institute for Safe Medication Practices (ISMP) includes this medication among its list of drugs that have a heightened risk of causing significant patient harm when used in error.
None known.
Note: Interacting drugs may not be individually listed below if they are part of a group interaction (eg, individual drugs within “CYP3A4 Inducers [Strong]” are NOT listed). For a complete list of drug interactions by individual drug name and detailed management recommendations, use the Lexicomp drug interactions program by clicking on the “Launch drug interactions program” link above.
5-Aminosalicylic Acid Derivatives: May enhance the myelosuppressive effect of Myelosuppressive Agents. Risk C: Monitor therapy
Abrocitinib: May enhance the immunosuppressive effect of Immunosuppressants (Therapeutic Immunosuppressant Agents). Risk X: Avoid combination
Antithymocyte Globulin (Equine): Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the adverse/toxic effect of Antithymocyte Globulin (Equine). Specifically, these effects may be unmasked if the dose of immunosuppressive therapy is reduced. Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Antithymocyte Globulin (Equine). Specifically, infections may occur with greater severity and/or atypical presentations. Risk C: Monitor therapy
Baricitinib: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Baricitinib. Risk X: Avoid combination
BCG (Intravesical): Myelosuppressive Agents may diminish the therapeutic effect of BCG (Intravesical). Risk X: Avoid combination
BCG Products: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the adverse/toxic effect of BCG Products. Specifically, the risk of vaccine-associated infection may be increased. Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of BCG Products. Risk X: Avoid combination
Belatacept: Antithymocyte Globulin (Rabbit) may enhance the adverse/toxic effect of Belatacept. Specifically, the risk for venous thrombosis of the renal allograft may be increased. Management: A 12-hour interval between administration of these 2 agents is suggested if these agents are to be used concomitantly. Monitor for venous thrombosis of the renal allograft. Risk D: Consider therapy modification
Brincidofovir: Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of Brincidofovir. Risk C: Monitor therapy
Brivudine: May enhance the adverse/toxic effect of Immunosuppressants (Therapeutic Immunosuppressant Agents). Risk X: Avoid combination
Chikungunya Vaccine (Live): Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the adverse/toxic effect of Chikungunya Vaccine (Live). Specifically, the risk of vaccine-associated infection may be increased. Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of Chikungunya Vaccine (Live). Risk X: Avoid combination
Chloramphenicol (Ophthalmic): May enhance the adverse/toxic effect of Myelosuppressive Agents. Risk C: Monitor therapy
Chloramphenicol (Systemic): Myelosuppressive Agents may enhance the myelosuppressive effect of Chloramphenicol (Systemic). Risk X: Avoid combination
Cladribine: May enhance the myelosuppressive effect of Myelosuppressive Agents. Risk X: Avoid combination
Cladribine: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Cladribine. Risk X: Avoid combination
CloZAPine: Myelosuppressive Agents may enhance the adverse/toxic effect of CloZAPine. Specifically, the risk for neutropenia may be increased. Risk C: Monitor therapy
Coccidioides immitis Skin Test: Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the diagnostic effect of Coccidioides immitis Skin Test. Management: Consider discontinuing therapeutic immunosuppressants several weeks prior to coccidioides immitis skin antigen testing to increase the likelihood of accurate diagnostic results. Risk D: Consider therapy modification
COVID-19 Vaccine (Adenovirus Vector): Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of COVID-19 Vaccine (Adenovirus Vector). Management: Administer a 2nd dose using an mRNA COVID-19 vaccine (at least 4 weeks after the primary vaccine dose) and a bivalent booster dose (at least 2 months after the additional mRNA dose or any other boosters). Risk D: Consider therapy modification
COVID-19 Vaccine (Inactivated Virus): Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of COVID-19 Vaccine (Inactivated Virus). Risk C: Monitor therapy
COVID-19 Vaccine (mRNA): Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of COVID-19 Vaccine (mRNA). Management: Give a 3-dose primary series for all patients aged 6 months and older taking immunosuppressive medications or therapies. Booster doses are recommended for certain age groups. See CDC guidance for details. Risk D: Consider therapy modification
COVID-19 Vaccine (Subunit): Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of COVID-19 Vaccine (Subunit). Risk C: Monitor therapy
COVID-19 Vaccine (Virus-like Particles): Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of COVID-19 Vaccine (Virus-like Particles). Risk C: Monitor therapy
Deferiprone: Myelosuppressive Agents may enhance the neutropenic effect of Deferiprone. Management: Avoid the concomitant use of deferiprone and myelosuppressive agents whenever possible. If this combination cannot be avoided, monitor the absolute neutrophil count more closely. Risk D: Consider therapy modification
Dengue Tetravalent Vaccine (Live): Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the adverse/toxic effect of Dengue Tetravalent Vaccine (Live). Specifically, the risk of vaccine-associated infection may be increased. Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of Dengue Tetravalent Vaccine (Live). Risk X: Avoid combination
Denosumab: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Denosumab. Management: Consider the risk of serious infections versus the potential benefits of coadministration of denosumab and immunosuppressants. If combined, monitor for signs/symptoms of serious infections. Risk D: Consider therapy modification
Deucravacitinib: May enhance the immunosuppressive effect of Immunosuppressants (Therapeutic Immunosuppressant Agents). Risk X: Avoid combination
Dipyrone: May enhance the adverse/toxic effect of Myelosuppressive Agents. Specifically, the risk for agranulocytosis and pancytopenia may be increased Risk X: Avoid combination
Etrasimod: May enhance the immunosuppressive effect of Immunosuppressants (Therapeutic Immunosuppressant Agents). Risk X: Avoid combination
Fexinidazole: Myelosuppressive Agents may enhance the myelosuppressive effect of Fexinidazole. Risk X: Avoid combination
Filgotinib: May enhance the immunosuppressive effect of Immunosuppressants (Therapeutic Immunosuppressant Agents). Risk X: Avoid combination
Inebilizumab: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Inebilizumab. Risk C: Monitor therapy
Influenza Virus Vaccines: Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of Influenza Virus Vaccines. Management: Administer influenza vaccines at least 2 weeks prior to initiating immunosuppressants if possible. If vaccination occurs less than 2 weeks prior to or during therapy, revaccinate 2 to 3 months after therapy discontinued if immune competence restored. Risk D: Consider therapy modification
Leflunomide: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Leflunomide. Management: Increase the frequency of chronic monitoring of platelet, white blood cell count, and hemoglobin or hematocrit to monthly, instead of every 6 to 8 weeks, if leflunomide is coadministered with immunosuppressive agents. Risk D: Consider therapy modification
Mumps- Rubella- or Varicella-Containing Live Vaccines: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the adverse/toxic effect of Mumps- Rubella- or Varicella-Containing Live Vaccines. Specifically, the risk of vaccine-associated infection may be increased. Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of Mumps- Rubella- or Varicella-Containing Live Vaccines. Risk X: Avoid combination
Nadofaragene Firadenovec: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the adverse/toxic effect of Nadofaragene Firadenovec. Specifically, the risk of disseminated adenovirus infection may be increased. Risk X: Avoid combination
Natalizumab: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Natalizumab. Risk X: Avoid combination
Ocrelizumab: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Ocrelizumab. Risk C: Monitor therapy
Ofatumumab: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Ofatumumab. Risk C: Monitor therapy
Olaparib: Myelosuppressive Agents may enhance the myelosuppressive effect of Olaparib. Risk C: Monitor therapy
Pidotimod: Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of Pidotimod. Risk C: Monitor therapy
Pimecrolimus: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Pimecrolimus. Risk X: Avoid combination
Pneumococcal Vaccines: Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of Pneumococcal Vaccines. Risk C: Monitor therapy
Poliovirus Vaccine (Live/Trivalent/Oral): Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the adverse/toxic effect of Poliovirus Vaccine (Live/Trivalent/Oral). Specifically, the risk of vaccine-associated infection may be increased. Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of Poliovirus Vaccine (Live/Trivalent/Oral). Risk X: Avoid combination
Polymethylmethacrylate: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the potential for allergic or hypersensitivity reactions to Polymethylmethacrylate. Management: Use caution when considering use of bovine collagen-containing implants such as the polymethylmethacrylate-based Bellafill brand implant in patients who are receiving immunosuppressants. Consider use of additional skin tests prior to administration. Risk D: Consider therapy modification
Promazine: May enhance the myelosuppressive effect of Myelosuppressive Agents. Risk C: Monitor therapy
Rabies Vaccine: Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of Rabies Vaccine. Management: Complete rabies vaccination at least 2 weeks before initiation of immunosuppressant therapy if possible. If combined, check for rabies antibody titers, and if vaccination is for post exposure prophylaxis, administer a 5th dose of the vaccine. Risk D: Consider therapy modification
Ritlecitinib: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Ritlecitinib. Risk X: Avoid combination
Ropeginterferon Alfa-2b: Myelosuppressive Agents may enhance the myelosuppressive effect of Ropeginterferon Alfa-2b. Management: Avoid coadministration of ropeginterferon alfa-2b and other myelosuppressive agents. If this combination cannot be avoided, monitor patients for excessive myelosuppressive effects. Risk D: Consider therapy modification
Ruxolitinib (Topical): Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Ruxolitinib (Topical). Risk X: Avoid combination
Sipuleucel-T: Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of Sipuleucel-T. Management: Consider reducing the dose or discontinuing the use of immunosuppressants prior to initiating sipuleucel-T therapy. Risk D: Consider therapy modification
Sphingosine 1-Phosphate (S1P) Receptor Modulator: May enhance the immunosuppressive effect of Immunosuppressants (Therapeutic Immunosuppressant Agents). Risk C: Monitor therapy
Tacrolimus (Topical): Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Tacrolimus (Topical). Risk X: Avoid combination
Talimogene Laherparepvec: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the adverse/toxic effect of Talimogene Laherparepvec. Specifically, the risk of infection from the live, attenuated herpes simplex virus contained in talimogene laherparepvec may be increased. Risk X: Avoid combination
Tertomotide: Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of Tertomotide. Risk X: Avoid combination
Tofacitinib: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Tofacitinib. Management: Coadministration of tofacitinib with potent immunosuppressants is not recommended. Use with non-biologic disease-modifying antirheumatic drugs (DMARDs) was permitted in psoriatic arthritis clinical trials. Risk X: Avoid combination
Typhoid Vaccine: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the adverse/toxic effect of Typhoid Vaccine. Specifically, the risk of vaccine-associated infection may be increased. Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of Typhoid Vaccine. Risk X: Avoid combination
Ublituximab: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Ublituximab. Risk C: Monitor therapy
Upadacitinib: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the immunosuppressive effect of Upadacitinib. Risk X: Avoid combination
Vaccines (Inactivated/Non-Replicating): Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of Vaccines (Inactivated/Non-Replicating). Management: Give inactivated vaccines at least 2 weeks prior to initiation of immunosuppressants when possible. Patients vaccinated less than 14 days before initiating or during therapy should be revaccinated at least 2 to 3 months after therapy is complete. Risk D: Consider therapy modification
Vaccines (Live): Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the adverse/toxic effect of Vaccines (Live). Specifically, the risk of vaccine-associated infection may be increased. Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of Vaccines (Live). Risk X: Avoid combination
Yellow Fever Vaccine: Immunosuppressants (Therapeutic Immunosuppressant Agents) may enhance the adverse/toxic effect of Yellow Fever Vaccine. Specifically, the risk of vaccine-associated infection may be increased. Immunosuppressants (Therapeutic Immunosuppressant Agents) may diminish the therapeutic effect of Yellow Fever Vaccine. Risk X: Avoid combination
Females of reproductive potential should use effective contraception during and for at least 3 months following treatment.
Antithymocyte globulin (rabbit) has been used as for the induction of immunosuppression in patients undergoing uterine transplant; a minimum interval of 3 months between uterine transplant and embryo transfer is suggested (Johannesson 2019; Jones 2019).
Antithymocyte globulin (rabbit) is a purified immunoglobulin G. Placental transfer of human IgG is dependent upon the IgG subclass, maternal serum concentrations, newborn birth weight, and gestational age, generally increasing as pregnancy progresses. The lowest exposure would be expected during the period of organogenesis (Palmeira 2012; Pentsuk 2009).
Information related to the use of antithymocyte globulin (rabbit) during pregnancy is limited (Balaha 2019; Kutzler 2016; López 2014; Massenkeil 2016).
Transplant Pregnancy Registry International (TPR) is a registry that follows pregnancies that occur in maternal transplant recipients or those fathered by male transplant recipients. The TPR encourages reporting of pregnancies following solid organ transplant by contacting them at 1-877-955-6877 or https://www.transplantpregnancyregistry.org.
It is not known if antithymocyte globulin (rabbit) is present in breast milk.
Because other immunoglobulins are present in breast milk, the manufacturer recommends that breastfeeding be discontinued during antithymocyte globulin (rabbit) therapy.
Lymphocyte count (total lymphocyte and/or T-cell subset), CBC with differential and platelet count; vital signs during administration; signs and symptoms of infection
Solid organ transplant: Absolute CD3 count (cells/µL) monitoring and CD3 based dosing has been considered in kidney and heart transplant recipients. It may be beneficial in certain patient populations but is not routinely recommended or utilized. Dose adjustments have been recommended based on the CD3 count (Krasinskas 2002; Peddi 2002; Uber 2004).
Antithymocyte globulin (rabbit) is a polyclonal antibody which appears to cause immunosuppression by acting on T-cell surface antigens and depleting CD4 lymphocytes
Onset of action (T-cell depletion): Within 24 hours (Hardinger 2006)
Duration: Lymphopenia may persist for up to 1 year (Hardinger 2006)
Half-life elimination: 2 to 3 days
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