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Mavorixafor: Drug information

Mavorixafor: Drug information
2024© UpToDate, Inc. and its affiliates and/or licensors. All Rights Reserved.
For additional information see "Mavorixafor: Pediatric drug information" and "Mavorixafor: Patient drug information"

For abbreviations, symbols, and age group definitions show table
Brand Names: US
  • Xolremdi
Pharmacologic Category
  • CXC Chemokine Receptor 4 (CXCR4) Antagonist
Dosing: Adult
WHIM syndrome

WHIM syndrome: Oral:

Weight ≤50 kg: 300 mg once daily.

Weight >50 kg: 400 mg once daily.

Dosage adjustment for concomitant therapy: Significant drug interactions exist, requiring dose/frequency adjustment or avoidance. Consult drug interactions database for more information.

Dosing: Kidney Impairment: Adult

CrCl 30 to <90 mL/minute: No dosage adjustment necessary.

CrCl <30 mL/minute: Use is not recommended (has not been studied).

Dosing: Hepatic Impairment: Adult

Mild impairment: No dosage adjustment necessary.

Moderate to severe impairment: Use is not recommended (has not been studied).

Dosing: Older Adult

Refer to adult dosing.

Dosing: Pediatric

(For additional information see "Mavorixafor: Pediatric drug information")

WHIM syndrome

WHIM (warts, hypogammaglobulinemia, infections, and myelokathexis) syndrome:

Children ≥12 years and Adolescents:

≤50 kg: Oral: 300 mg once daily.

>50 kg: Oral: 400 mg once daily.

Dosage adjustment for concomitant therapy: Significant drug interactions exist, requiring dose/frequency adjustment or avoidance. Consult drug interactions database for more information.

Dosing: Kidney Impairment: Pediatric

Altered kidney function:

Children ≥12 years and Adolescents: Oral:

CrCl ≥30 mL/minute: No dosage adjustment necessary.

CrCl <30 mL/minute: Use is not recommended; has not been studied.

Dosing: Hepatic Impairment: Pediatric

Children ≥12 years and Adolescents: Oral:

Mild impairment: No dosage adjustment necessary.

Moderate or severe impairment: Use is not recommended; has not been studied.

Adverse Reactions

The following adverse drug reactions and incidences are derived from product labeling unless otherwise specified. Reported adverse reactions are for children, adolescents, and adults.

>10%:

Dermatologic: Pityriasis rosea, skin rash

Gastrointestinal: Vomiting

Hematologic & oncologic: Thrombocytopenia

Nervous system: Dizziness

Respiratory: Epistaxis, rhinitis

Frequency not defined: Cardiovascular: Prolonged QT interval on ECG

Contraindications

Concomitant use with drugs that are highly dependent on CYP2D6 for clearance.

Warnings/Precautions

Concerns related to adverse effects:

• QTc interval prolongation: May cause concentration-dependent QTc interval prolongation; risk may be increased with concomitant medications that increase mavorixafor exposure and medications with a known potential for QTc prolongation. Correct any modifiable QTc prolongation risk factors (eg, hypokalemia) prior to starting therapy.

Product Availability

Xolremdi: FDA approved April 2024; anticipated availability is currently unknown.

Dosage Forms: US

Excipient information presented when available (limited, particularly for generics); consult specific product labeling.

Capsule, Oral:

Xolremdi: 100 mg [contains fd&c blue #2 (indigotine,indigo carmine)]

Generic Equivalent Available: US

No

Pricing: US

Capsules (Xolremdi Oral)

100 mg (per each): $408.00

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.

Administration: Adult

Oral: Administer on an empty stomach after an overnight fast and at least 30 minutes before food. Swallow whole; do not open, break, or chew capsules.

Administration: Pediatric

Oral: Administer on an empty stomach after an overnight fast and at least 30 minutes before food. Swallow tablet whole; do not break, open, or chew capsules.

Use: Labeled Indications

WHIM syndrome: Treatment of WHIM syndrome (warts, hypogammaglobulinemia, infections and myelokathexis) in patients ≥12 years of age to increase the number of circulating mature neutrophils and lymphocytes.

Metabolism/Transport Effects

Substrate of CYP2C19 (minor), CYP2D6 (minor), CYP3A4 (major), P-glycoprotein/ABCB1 (minor); Note: Assignment of Major/Minor substrate status based on clinically relevant drug interaction potential; Inhibits CYP2D6 (strong), CYP3A4 (weak), P-glycoprotein/ABCB1

Drug Interactions

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 drug interactions program by clicking on the “Launch drug interactions program” link above.

Afatinib: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Afatinib. Management: If combined, administer the P-gp inhibitor simultaneously with, or after, the dose of afatinib. Monitor closely for signs and symptoms of afatinib toxicity and if the combination is not tolerated, reduce the afatinib dose by 10 mg. Risk D: Consider therapy modification

Aliskiren: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Aliskiren. Risk C: Monitor therapy

ALPRAZolam: CYP3A4 Inhibitors (Weak) may increase the serum concentration of ALPRAZolam. Risk C: Monitor therapy

Amoxapine: CYP2D6 Inhibitors (Strong) may increase the serum concentration of Amoxapine. Risk C: Monitor therapy

Amphetamines: CYP2D6 Inhibitors (Strong) may increase the serum concentration of Amphetamines. Management: Monitor for amphetamine toxicities (including serotonin syndrome) if used with a strong CYP2D6 inhibitor. Initiate amphetamine therapy at lower doses, monitor frequently, and adjust doses as needed. Discontinue amphetamines if serotoinin syndrome occurs. Risk C: Monitor therapy

Benzhydrocodone: CYP2D6 Inhibitors (Strong) may decrease serum concentrations of the active metabolite(s) of Benzhydrocodone. Risk C: Monitor therapy

Berotralstat: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Berotralstat. Management: Decrease the berotralstat dose to 110 mg daily when combined with P-glycoprotein (P-gp) inhibitors. Risk D: Consider therapy modification

Bilastine: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Bilastine. Risk X: Avoid combination

Broom: CYP2D6 Inhibitors (Strong) may increase the serum concentration of Broom. Specifically, the concentrations of sparteine, a constituent of broom, may be increased. Risk C: Monitor therapy

Celiprolol: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Celiprolol. Risk C: Monitor therapy

Clofazimine: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Risk C: Monitor therapy

CloZAPine: CYP2D6 Inhibitors (Strong) may increase the serum concentration of CloZAPine. Risk C: Monitor therapy

Colchicine: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Colchicine. Colchicine distribution into certain tissues (e.g., brain) may also be increased. Management: This combination is often contraindicated, but combined use may be permitted with dose adjustment and monitoring. Recommendations vary based on brand, indication, use of CYP3A4 inhibitors, and hepatic/renal function. See interaction monograph for details. Risk D: Consider therapy modification

CycloSPORINE (Systemic): P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of CycloSPORINE (Systemic). Risk C: Monitor therapy

CycloSPORINE (Systemic): CYP3A4 Inhibitors (Weak) may increase the serum concentration of CycloSPORINE (Systemic). Risk C: Monitor therapy

CYP2D6 Substrates (High risk with Inhibitors): Mavorixafor may increase the serum concentration of CYP2D6 Substrates (High risk with Inhibitors). Risk X: Avoid combination

CYP3A4 Inducers (Moderate): May decrease the serum concentration of Mavorixafor. Risk C: Monitor therapy

CYP3A4 Inducers (Strong): May decrease the serum concentration of Mavorixafor. Risk X: Avoid combination

CYP3A4 Inhibitors (Moderate): May increase the serum concentration of Mavorixafor. Risk C: Monitor therapy

CYP3A4 Inhibitors (Strong): May increase the serum concentration of Mavorixafor. Management: Decrease the mavorixafor dose to 200 mg daily if combined with strong CYP3A4 inhibitors. Risk D: Consider therapy modification

Dabigatran Etexilate: P-glycoprotein/ABCB1 Inhibitors may increase serum concentrations of the active metabolite(s) of Dabigatran Etexilate. Risk C: Monitor therapy

Digoxin: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Digoxin. Management: Measure digoxin serum concentrations before initiating treatment with these P-glycoprotein (P-gp) inhibitors. Reduce digoxin concentrations by either reducing the digoxin dose by 15% to 30% or by modifying the dosing frequency. Risk D: Consider therapy modification

Dofetilide: CYP3A4 Inhibitors (Weak) may increase the serum concentration of Dofetilide. Risk C: Monitor therapy

Doxepin (Systemic): CYP2D6 Inhibitors (Strong) may increase the serum concentration of Doxepin (Systemic). Risk C: Monitor therapy

Doxepin (Topical): CYP2D6 Inhibitors (Strong) may increase the serum concentration of Doxepin (Topical). Risk C: Monitor therapy

DOXOrubicin (Conventional): P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of DOXOrubicin (Conventional). Risk X: Avoid combination

DOXOrubicin (Liposomal): P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of DOXOrubicin (Liposomal). Risk C: Monitor therapy

Edoxaban: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Edoxaban. Risk C: Monitor therapy

Etoposide: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Etoposide. Risk C: Monitor therapy

Etoposide Phosphate: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Etoposide Phosphate. Risk C: Monitor therapy

Everolimus: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Everolimus. Risk C: Monitor therapy

Fenfluramine: CYP2D6 Inhibitors (Strong) may increase the serum concentration of Fenfluramine. Management: Limit fenfluramine dose to 20 mg/day without concurrent stiripentol or to 17 mg/day with concomitant stiripentol and clobazam when used with a strong CYP2D6 inhibitor. Risk D: Consider therapy modification

Fesoterodine: CYP2D6 Inhibitors (Strong) may increase serum concentrations of the active metabolite(s) of Fesoterodine. Risk C: Monitor therapy

Fexinidazole: May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Risk X: Avoid combination

Finerenone: CYP3A4 Inhibitors (Weak) may increase the serum concentration of Finerenone. Risk C: Monitor therapy

Flibanserin: CYP3A4 Inhibitors (Weak) may increase the serum concentration of Flibanserin. Risk C: Monitor therapy

FLUoxetine: CYP2D6 Inhibitors (Strong) may increase the serum concentration of FLUoxetine. Risk C: Monitor therapy

FluPHENAZine: CYP2D6 Inhibitors (Strong) may increase the serum concentration of FluPHENAZine. Risk C: Monitor therapy

FluvoxaMINE: CYP2D6 Inhibitors (Strong) may increase the serum concentration of FluvoxaMINE. Risk C: Monitor therapy

Fusidic Acid (Systemic): May increase the serum concentration of CYP3A4 Substrates (High risk with Inhibitors). Management: Consider avoiding this combination if possible. If required, monitor patients closely for increased adverse effects of the CYP3A4 substrate. Risk D: Consider therapy modification

Galantamine: CYP2D6 Inhibitors (Strong) may increase the serum concentration of Galantamine. Risk C: Monitor therapy

Gefitinib: CYP2D6 Inhibitors (Strong) may increase the serum concentration of Gefitinib. Risk C: Monitor therapy

Glecaprevir and Pibrentasvir: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Glecaprevir and Pibrentasvir. Risk C: Monitor therapy

Grapefruit Juice: May increase the serum concentration of Mavorixafor. Risk X: Avoid combination

HYDROcodone: CYP2D6 Inhibitors (Strong) may decrease serum concentrations of the active metabolite(s) of HYDROcodone. Specifically, concentrations of hydromorphone may be decreased. Risk C: Monitor therapy

Indoramin: CYP2D6 Inhibitors (Strong) may increase the serum concentration of Indoramin. Risk C: Monitor therapy

Ixabepilone: CYP3A4 Inhibitors (Weak) may increase the serum concentration of Ixabepilone. Risk C: Monitor therapy

Lapatinib: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Lapatinib. Risk C: Monitor therapy

Larotrectinib: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Larotrectinib. Risk C: Monitor therapy

Lefamulin: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Lefamulin. Management: Avoid concomitant use of lefamulin tablets with P-glycoprotein/ABCB1 inhibitors. If concomitant use is required, monitor for lefamulin adverse effects. Risk D: Consider therapy modification

Lemborexant: CYP3A4 Inhibitors (Weak) may increase the serum concentration of Lemborexant. Management: The maximum recommended dosage of lemborexant is 5 mg, no more than once per night, when coadministered with weak CYP3A4 inhibitors. Risk D: Consider therapy modification

Lomitapide: CYP3A4 Inhibitors (Weak) may increase the serum concentration of Lomitapide. Management: Patients on lomitapide 5 mg/day may continue that dose. Patients taking lomitapide 10 mg/day or more should decrease the lomitapide dose by half. The lomitapide dose may then be titrated up to a max adult dose of 30 mg/day. Risk D: Consider therapy modification

Maprotiline: CYP2D6 Inhibitors (Strong) may increase the serum concentration of Maprotiline. Risk C: Monitor therapy

Mequitazine: CYP2D6 Inhibitors (Strong) may increase the serum concentration of Mequitazine. Risk X: Avoid combination

MetFORMIN: Mavorixafor may decrease the serum concentration of MetFORMIN. Risk C: Monitor therapy

Methadone: CYP2D6 Inhibitors (Strong) may increase the serum concentration of Methadone. Risk C: Monitor therapy

Midazolam: CYP3A4 Inhibitors (Weak) may increase the serum concentration of Midazolam. Risk C: Monitor therapy

Morphine (Systemic): P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Morphine (Systemic). Risk C: Monitor therapy

Nadolol: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Nadolol. Risk C: Monitor therapy

Naldemedine: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Naldemedine. Risk C: Monitor therapy

Naloxegol: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Naloxegol. Risk C: Monitor therapy

Nicergoline: CYP2D6 Inhibitors (Strong) may increase serum concentrations of the active metabolite(s) of Nicergoline. Specifically, concentrations of the MMDL metabolite may be increased. CYP2D6 Inhibitors (Strong) may decrease serum concentrations of the active metabolite(s) of Nicergoline. Specifically, concentrations of the MDL metabolite may be decreased. Risk C: Monitor therapy

NiMODipine: CYP3A4 Inhibitors (Weak) may increase the serum concentration of NiMODipine. Risk C: Monitor therapy

Olmutinib: CYP2D6 Inhibitors (Strong) may increase the serum concentration of Olmutinib. Risk C: Monitor therapy

PAZOPanib: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of PAZOPanib. Risk X: Avoid combination

P-glycoprotein/ABCB1 Inhibitors: May increase the serum concentration of Mavorixafor. Risk C: Monitor therapy

Pimozide: CYP2D6 Inhibitors (Strong) may increase the serum concentration of Pimozide. Risk X: Avoid combination

Pimozide: CYP3A4 Inhibitors (Weak) may increase the serum concentration of Pimozide. Risk X: Avoid combination

Pralsetinib: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Pralsetinib. Management: If this combo cannot be avoided, decrease pralsetinib dose from 400 mg daily to 300 mg daily; from 300 mg daily to 200 mg daily; and from 200 mg daily to 100 mg daily. Risk D: Consider therapy modification

Primaquine: CYP2D6 Inhibitors (Strong) may diminish the therapeutic effect of Primaquine. CYP2D6 Inhibitors (Strong) may decrease serum concentrations of the active metabolite(s) of Primaquine. Risk C: Monitor therapy

Protriptyline: CYP2D6 Inhibitors (Strong) may increase the serum concentration of Protriptyline. Risk C: Monitor therapy

QT-prolonging Agents (Highest Risk): QT-prolonging Agents (Indeterminate Risk - Caution) may enhance the QTc-prolonging effect of QT-prolonging Agents (Highest Risk). Management: Monitor for QTc interval prolongation and ventricular arrhythmias when these agents are combined. Patients with additional risk factors for QTc prolongation may be at even higher risk. Risk C: Monitor therapy

Ranolazine: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Ranolazine. Risk C: Monitor therapy

Relugolix: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Relugolix. Management: Avoid coadministration of relugolix with oral P-gp inhibitors whenever possible. If combined, take relugolix at least 6 hours prior to the P-gp inhibitor and monitor patients more frequently for adverse reactions. Risk D: Consider therapy modification

Relugolix, Estradiol, and Norethindrone: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Relugolix, Estradiol, and Norethindrone. Management: Avoid use of relugolix/estradiol/norethindrone with P-glycoprotein (P-gp) inhibitors. If concomitant use is unavoidable, relugolix/estradiol/norethindrone should be administered at least 6 hours before the P-gp inhibitor. Risk D: Consider therapy modification

Repotrectinib: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Repotrectinib. Risk X: Avoid combination

RifAXIMin: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of RifAXIMin. Risk C: Monitor therapy

Rimegepant: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Rimegepant. Management: Avoid administration of another dose of rimegepant within 48 hours if given concomitantly with a P-glycoprotein (P-gp) inhibitor. Risk D: Consider therapy modification

RomiDEPsin: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of RomiDEPsin. Risk C: Monitor therapy

Silodosin: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Silodosin. Risk C: Monitor therapy

Simvastatin: CYP3A4 Inhibitors (Weak) may increase serum concentrations of the active metabolite(s) of Simvastatin. CYP3A4 Inhibitors (Weak) may increase the serum concentration of Simvastatin. Risk C: Monitor therapy

Sirolimus (Conventional): P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Sirolimus (Conventional). Management: Avoid concurrent use of sirolimus with P-glycoprotein (P-gp) inhibitors when possible and alternative agents with lesser interaction potential with sirolimus should be considered. Monitor for increased sirolimus concentrations/toxicity if combined. Risk D: Consider therapy modification

Sirolimus (Protein Bound): P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Sirolimus (Protein Bound). Risk X: Avoid combination

Tacrolimus (Systemic): P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Tacrolimus (Systemic). Risk C: Monitor therapy

Tacrolimus (Systemic): CYP3A4 Inhibitors (Weak) may increase the serum concentration of Tacrolimus (Systemic). Risk C: Monitor therapy

Talazoparib: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Talazoparib. Risk C: Monitor therapy

Tegaserod (Withdrawn from US Market): P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Tegaserod (Withdrawn from US Market). Risk C: Monitor therapy

Teniposide: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Teniposide. Risk C: Monitor therapy

Tenofovir Disoproxil Fumarate: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Tenofovir Disoproxil Fumarate. Risk C: Monitor therapy

Thioridazine: CYP2D6 Inhibitors (Strong) may increase the serum concentration of Thioridazine. Risk X: Avoid combination

Topotecan: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Topotecan. Risk X: Avoid combination

Triazolam: CYP3A4 Inhibitors (Weak) may increase the serum concentration of Triazolam. Risk C: Monitor therapy

Ubrogepant: CYP3A4 Inhibitors (Weak) may increase the serum concentration of Ubrogepant. Management: In patients taking weak CYP3A4 inhibitors, the initial and second dose (given at least 2 hours later if needed) of ubrogepant should be limited to 50 mg. Risk D: Consider therapy modification

Ubrogepant: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Ubrogepant. Management: Use an initial ubrogepant dose of 50 mg and second dose (at least 2 hours later if needed) of 50 mg when used with a P-gp inhibitor. Risk D: Consider therapy modification

Venetoclax: P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of Venetoclax. Management: Reduce the venetoclax dose by at least 50% in patients requiring concomitant treatment with P-glycoprotein (P-gp) inhibitors. Resume the previous venetoclax dose 2 to 3 days after discontinuation of a P-gp inhibitor. Risk D: Consider therapy modification

VinCRIStine (Liposomal): P-glycoprotein/ABCB1 Inhibitors may increase the serum concentration of VinCRIStine (Liposomal). Risk X: Avoid combination

Food Interactions

A high-fat meal (1,000 calories, 50% fat) decreased AUC 55%; a low-fat meal (500 calories, 25% fat) decreased AUC 51%. Management: Administer after an overnight fast and at least 30 minutes before food.

Reproductive Considerations

Verify pregnancy status prior to initiating treatment in patients who could become pregnant.

Patients who could become pregnant should use effective contraception during therapy and for 3 weeks after the last dose of mavorixafor.

Pregnancy Considerations

Animal reproduction studies have not been conducted. Based on the mechanism of action, in utero exposure to mavorixafor may cause fetal harm. Mavorixafor is a CXCR4 antagonist; CXCR4/SDF-1 signaling is important for embryo-fetal and placental development.

Breastfeeding Considerations

It is not known if mavorixafor is present in breast milk.

Due to the potential for serious adverse reactions in the breastfed infant, breastfeeding is not recommended by the manufacturer during therapy and for 3 weeks after the last dose of mavorixafor.

Monitoring Parameters

Assess QTc at baseline and during treatment as clinically indicated in patients with risk factors for QTc prolongation; verify pregnancy status prior to treatment (in patients who can become pregnant).

Mechanism of Action

Mavorixafor selectively inhibits C-X-C motif chemokine receptor 4 (CXCR4) binding to stromal cell–derived factor-1-alpha (SDF-1α)/C-X-C motif chemokine ligand 12 (CXCL 12), expressed by bone marrow stromal cells, resulting in inhibition to CXCL 12 in wild-type and mutated CXCR4 variants associated with WHIM syndrome and increases mobilization of neutrophils and lymphocytes from the bone marrow into peripheral circulation.

Pharmacokinetics (Adult Data Unless Noted)

Note: Pharmacokinetics in pediatric patients 12 to <17 years were not significantly different than those observed in adults.

Onset: ANC and absolute lymphocyte count peaked at 4 hours.

Duration: ANC and absolute lymphocyte count returned to baseline within 24 hours.

Absorption: Administration with a high-fat meal (1,000 calories, 50% fat) decreased Cmax by 66% and AUC by 55%; administration with a low-fat meal (500 calories, 25% fat) decreased Cmax by 55% and AUC by 51%; a 14% increase in Cmax and a 18% decrease in AUC was observed with a low-fat meal after an overnight fast compared to fasting for an additional 4 hours after the mavorixafor dose.

Distribution: Vd: 768 L.

Protein binding: >93%.

Metabolism: CYP3A4 and, to a lesser extent, CYP2D6.

Half-life elimination: 82 hours.

Time to peak: 2.8 hours (range: 1.9 to 4 hours).

Excretion: Feces: 61%; urine: 13.2% (3% as unchanged drug).

Clearance: 62 L/hour.

  1. Xolremdi (mavorixafor) [prescribing information]. Boston, MA: X4 Pharmaceuticals Inc; April 2024.
Topic 144909 Version 12.0

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