Paliperidone palmitate

Paliperidone palmitate
Clinical data
Trade names	Invega Hayfera, Invega Sustenna, Invega Trinza, others
Other names	PP; PP1M; PP3M; PP6M; JNS-010; RO-92670; RO92670
MedlinePlus	a607005
License data	US DailyMed: Paliperidone_palmitate;
Routes of; administration	Intramuscular
Drug class	Atypical antipsychotic
Legal status
Legal status	US: ℞-only; EU: Rx-only; In general: ℞ (Prescription only);
Identifiers
	IUPAC name [3-[2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl]-2-methyl-4-oxo-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-9-yl] hexadecanoate;
CAS Number	199739-10-1;
PubChem CID	9852746;
DrugBank	DB01267;
ChemSpider	8028457;
UNII	R8P8USM8FR;
KEGG	D05340;
ChEBI	CHEBI:83807;
ChEMBL	ChEMBL2107360;
CompTox Dashboard (EPA)	DTXSID70870217 ;
ECHA InfoCard	100.208.402
Chemical and physical data
Formula	C39H57FN4O4
Molar mass	664.907 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES CCCCCCCCCCCCCCCC(=O)OC1CCCN2C1=NC(=C(C2=O)CCN3CCC(CC3)C4=NOC5=C4C=CC(=C5)F)C;
	InChI InChI=1S/C39H57FN4O4/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-18-36(45)47-34-17-16-24-44-38(34)41-29(2)32(39(44)46)23-27-43-25-21-30(22-26-43)37-33-20-19-31(40)28-35(33)48-42-37/h19-20,28,30,34H,3-18,21-27H2,1-2H3; Key:VOMKSBFLAZZBOW-UHFFFAOYSA-N;

Paliperidone palmitate (PP), sold under the brand name Invega Sustenna among others, is an atypical antipsychotic which is used in the treatment of schizophrenia and schizoaffective disorder. It is an antipsychotic ester – specifically the palmitate ester of paliperidone – and acts as a long-lasting form of paliperidone. Paliperidone palmitate is formulated as an aqueous suspension, has a strong smell similar to alcohol, and is administered by intramuscular injection into deltoid or gluteal muscle once every 1, 3, or 6 months depending on the formulation. A formulation for injection once every 6 months is also pending regulatory approval as of September 2021.

With the once-monthly formulation of paliperidone palmitate, the time to peak is 13 days and the elimination half-life is 25 to 49 days, and with the 3-month formulation, the time to peak is 30 to 33 days and the half-life is 84 to 95 days via deltoid muscle and 118 to 139 days gluteally. The peak-to-trough ratio of paliperidone palmitate at steady state ranges from 1.56 to 1.70 with the 1- and 3-month formulations. The 3-month formulation of paliperidone palmitate has larger crystal sizes than the 1-month formulation and this allows for its longer duration. No pharmacokinetic data for the 6-month formulation has been released as of January 2021.

Pharmacokinetics of long-acting injectable antipsychotics
Medication	Brand name	Class	Vehicle	Dosage	T_max	t_1/2 single	t_1/2 multiple	logP^c
Aripiprazole lauroxil	Aristada	Atypical	Water^a	441–1064 mg/4–8 weeks	24–35 days	?	54–57 days	7.9–10.0
Aripiprazole monohydrate	Abilify Maintena	Atypical	Water^a	300–400 mg/4 weeks	7 days	?	30–47 days	4.9–5.2
Bromperidol decanoate	Impromen Decanoas	Typical	Sesame oil	40–300 mg/4 weeks	3–9 days	?	21–25 days	7.9
Clopentixol decanoate	Sordinol Depot	Typical	Viscoleo^b	50–600 mg/1–4 weeks	4–7 days	?	19 days	9.0
Flupentixol decanoate	Depixol	Typical	Viscoleo^b	10–200 mg/2–4 weeks	4–10 days	8 days	17 days	7.2–9.2
Fluphenazine decanoate	Prolixin Decanoate	Typical	Sesame oil	12.5–100 mg/2–5 weeks	1–2 days	1–10 days	14–100 days	7.2–9.0
Fluphenazine enanthate	Prolixin Enanthate	Typical	Sesame oil	12.5–100 mg/1–4 weeks	2–3 days	4 days	?	6.4–7.4
Fluspirilene	Imap, Redeptin	Typical	Water^a	2–12 mg/1 week	1–8 days	7 days	?	5.2–5.8
Haloperidol decanoate	Haldol Decanoate	Typical	Sesame oil	20–400 mg/2–4 weeks	3–9 days	18–21 days		7.2–7.9
Olanzapine pamoate	Zyprexa Relprevv	Atypical	Water^a	150–405 mg/2–4 weeks	7 days	?	30 days	–
Oxyprothepin decanoate	Meclopin	Typical	?	?	?	?	?	8.5–8.7
Paliperidone palmitate	Invega Sustenna	Atypical	Water^a	39–819 mg/4–12 weeks	13–33 days	25–139 days	?	8.1–10.1
Perphenazine decanoate	Trilafon Dekanoat	Typical	Sesame oil	50–200 mg/2–4 weeks	?	?	27 days	8.9
Perphenazine enanthate	Trilafon Enanthate	Typical	Sesame oil	25–200 mg/2 weeks	2–3 days	?	4–7 days	6.4–7.2
Pipotiazine palmitate	Piportil Longum	Typical	Viscoleo^b	25–400 mg/4 weeks	9–10 days	?	14–21 days	8.5–11.6
Pipotiazine undecylenate	Piportil Medium	Typical	Sesame oil	100–200 mg/2 weeks	?	?	?	8.4
Risperidone	Risperdal Consta	Atypical	Microspheres	12.5–75 mg/2 weeks	21 days	?	3–6 days	–
Zuclopentixol acetate	Clopixol Acuphase	Typical	Viscoleo^b	50–200 mg/1–3 days	1–2 days	1–2 days		4.7–4.9
Zuclopentixol decanoate	Clopixol Depot	Typical	Viscoleo^b	50–800 mg/2–4 weeks	4–9 days	?	11–21 days	7.5–9.0
Note: All by intramuscular injection. Footnotes: ^a = Microcrystalline or nanocrystalline aqueous suspension. ^b = Low-viscosity vegetable oil (specifically fractionated coconut oil with medium-chain triglycerides). ^c = Predicted, from PubChem and DrugBank. Sources: Main: See template.