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List of investigational attention deficit hyperactivity disorder drugs

This is a list of investigational attention deficit hyperactivity disorder drugs, or drugs that are currently under development for clinical use in the treatment of attention deficit hyperactivity disorder (ADHD) but are not yet approved.

Chemical/generic names are listed first, with developmental code names, synonyms, and brand names in parentheses.

This list was last comprehensively updated in September 2021. It is likely to become outdated with time.

Under development

Preregistration

  • ATT-377 Combination treatment of Methylphenidate ER, cyproheptadine
  • TRN-110 [extended-release] undefined mechanism / extended-release form of an undisclosed drug

Phase 3 clinical trials

  • Centanafadine [sustained-release] (centanafadine SR, CTN-SR, EB-1020, EB-1020 SR) serotonin–norepinephrine–dopamine reuptake inhibitor
  • Dexmethylphenidate [controlled release] (CTX-1301) norepinephrine–dopamine reuptake inhibitor
  • Edivoxetine (LY-2216684) norepinephrine reuptake inhibitor
  • Molindone [extended-release] (AFX-2201, EN-1733A, molindone XR, SPN-810, SPN-810M, Zalvari) antipsychotic / dopamine D<sub>2</sub> receptor antagonist and serotonin receptor modulator (e.g., serotonin 5-HT<sub>2B</sub> and 5-HT<sub>2A</sub> receptor antagonist) specifically under development for impulsive aggression in ADHD
  • Serdexmethylphenidate (KP-484) dexmethylphenidate prodrug / norepinephrine–dopamine reuptake inhibitor
  • Solriamfetol (ADX-N05, ARL-N05, JZP-110, SKL-N05; Sunosi) norepinephrine–dopamine reuptake inhibitor

Phase 2 clinical trials

  • CX-717 ampakine / AMPA receptor modulator
  • Mazindol [controlled release] (NLS-0, NLS-1, NLS-10, NLS-13, NLS-2, Nolazol, Quilience) serotonin–norepinephrine–dopamine reuptake inhibitor
  • PDC-1421 (BLI-1005) norepinephrine reuptake inhibitor

Phase 1 clinical trials

  • AFX-2401 "neurotransmitter modulator"
  • Atomoxetine [oral solution] (TAH-9922) norepinephrine reuptake inhibitor
  • Dextroamphetamine [abuse-deterrent immediate-release] (ADAIR) norepinephrine–dopamine releasing agent

Preclinical/research

  • Atomoxetine [oral suspension] norepinephrine reuptake inhibitor
  • Dextroamphetamine [controlled release] (CTX-1302) norepinephrine–dopamine releasing agent
  • NNI-351 DYRK1A inhibitor and "neurogenesis enhancer"

No development reported

  • AFI-002 undefined mechanism
  • Altropane (123-I Altropane®, [123I]-E-IACFT Injection, [123I]NAV5001, CFT, Iodine-123-E-IACFT Injection, NAV-5001, O-587) dopamine reuptake inhibitor / single-photon emission-computed tomography enhancer
  • Amphetamine [oral abuse-deterrent immediate-release] (ADAIR) norepinephrine–dopamine releasing agent
  • Bavisant (BEN-2001, JNJ-1074, JNJ-31001074) histamine H<sub>3</sub> receptor antagonist
  • BCWP-E003 undefined mechanism
  • BLI-1008 undefined mechanism
  • Brilaroxazine (RP-5000, RP-5063) atypical antipsychotic / dopamine receptor partial agonist and serotonin receptor modulator
  • Cannabidiol/gabapentin (Cannbleph) cannabinoid receptor modulator and gabapentinoid
  • Ciforadenant (CPI-444, V-81444) adenosine A<sub>2A</sub> receptor antagonist
  • CM-4612 (CM-ADHD, CM-AT, CM-PK) gastrointestinal/pancreatic enzyme replacement therapy
  • CRD-102 undefined mechanism
  • Dasotraline (DSP-225289, SEP-225289, SEP-0225289, SEP-225289-HCI, SEP-289) serotonin–norepinephrine–dopamine reuptake inhibitor
  • Dextroamphetamine [abuse-resistant] (PF-08, PFR 08001, PFR08026) – norepinephrine–dopamine releasing agent
  • Dextroamphetamine sulfate [modified release capsules] (HLD-900, HLD-100) norepinephrine–dopamine releasing agent
  • Dopamine [intranasal] (DopaMat, MPP-18) dopamine receptor agonist
  • Eltoprazine (DU-28853) serotonin 5-HT<sub>1A</sub> and 5-HT<sub>1B</sub> receptor agonist
  • Fasoracetam [co-crystallised] (AEVI-004, NFC-1) racetam / metabotropic glutamate receptor modulator
  • GTS-21 (DMXB-A, DMXB-A sustained release, DMXB-A-SR) α<sub>7</sub> nicotinic acetylcholine receptor agonist
  • Guanfacine [once-daily] (Guanfacine Carrier Wave, SPD-547) α<sub>2</sub>-adrenergic receptor agonist
  • IPX-233 (IPX233 ER C0003, IPX233-C0001, IPX233-C0002, IPX233-T0001, IPX233-T0002) central nervous system stimulant
  • Masupirdine (M1, M1 of SUVN-502, SUVN-502, SVN-502) serotonin 5-HT<sub>6</sub> receptor antagonist
  • Methylphenidate [extended-release/abuse-resistant] (COL-171) norepinephrine–dopamine reuptake inhibitor
  • Methylphenidate [fast dissolve tablet] [Samyang Holdings Biopharmaceuticals] norepinephrine–dopamine reuptake inhibitor
  • Methylphenidate [transdermal system] (SHX-009) norepinephrine–dopamine reuptake inhibitor
  • Methylphenidate/naltrexone (AVK-001) norepinephrine–dopamine reuptake inhibitor and opioid receptor antagonist
  • Nic-12 undefined mechanism
  • NLS-2 antianaemic / heavy metal / iron replacement
  • PD-3044 dopamine reuptake inhibitor
  • Pitolisant (tiprolisant; BF-2.649, BF-2649, Ozawade, Wakix) histamine H<sub>3</sub> receptor antagonist
  • R-Sibutramine metabolite ((+)-desmethylsibutramine, (+)-didesmethylsibutramine, R-DDMS, R-desmethylsibutramine, R-didesmethylsibutramine) serotonin–norepinephrine–dopamine reuptake inhibitor
  • Selegiline [transdermal] (Emsam) monoamine oxidase B inhibitor
  • SKL-13865 (SKL-ADHD) norepinephrine–dopamine reuptake inhibitor
  • Sofinicline (A-422894.0, ABT-894) α<sub>4</sub>β<sub>2</sub> nicotinic acetylcholine receptor modulator
  • SPN-811 undefined mechanism
  • Taminadenant (NIR-178, PBF-509) adenosine A<sub>2A</sub> receptor antagonist

Research programmes

  • Ampakines / AMPA receptor modulators [RespireRx] (CX-516, CX-614, CX-707, CX-929, CX-1501, CX-1763, CX-1796, CX-1837, CX-1846, CX-1942, CX-2007, CX-2076)
  • Cannabis extracts [Cannabis Science] (CBIS GAP-001, CBIS LC-001, CBIS OBLD-001, CBIS OCD-001, CBIS PC-001, CBIS PPC-001, CBIS PS-001, CBIS SD-001, CBIS SSA-001, CBIS-OS-001, CBIS-PTSD-001, CS NEURO 1, CS-S/BCC-1, CS-TATI-1) cannabinoid receptor modulators
  • Norepinephrine reuptake inhibitors / adrenergic receptor antagonists [Pfizer] (NRI-022, NRI-193, WAY-253203, WAY-256805, WAY-260022, WAY-315193, WAY-318068)
  • Pim2 / PolyPhetamine [ITL Pharma]
  • Subtype-selective glutamate NMDA receptor modulators / glutamate NR2B receptor modulators [Novartis]

Not under development

Development discontinued

  • ABT-418 nicotinic acetylcholine receptor agonist
  • Amphetamine [transdermal patch] [Noven/Takeda] norepinephrine–dopamine releasing agent
  • Ampreloxetine (TD-9855) norepinephrine reuptake inhibitor
  • AR-08 adrenergic receptor agonist
  • Aripiprazole (Abilify, Abilify Maintena, Abilify MyCite, Abilitat, Ao Pai, Aripiprazole depot, Aripiprazole ECER tablets, Arlemide; OPC-14597, OPC-14597 IMD, OPC-31) atypical antipsychotic / dopamine receptor partial agonist and serotonin receptor modulator
  • AZD-5213 histamine H<sub>3</sub> receptor antagonist
  • Bifemelane (SON-216) monoamine oxidase inhibitor and weak norepinephrine reuptake inhibitor
  • Bradanicline (ATA-101, TC-0569, TC-5619, TC-5619-238) α<sub>7</sub> nicotinic acetylcholine receptor agonist
  • Brexpiprazole (Rexulti, Rxulti; Lu-AF41156, OPC-34712, OPDC-34712) atypical antipsychotic / dopamine receptor partial agonist and serotonin receptor modulator
  • Buspirone [transdermal] (BuSpar Patch) serotonin 5-HT<sub>1A</sub> receptor partial agonist, other actions
  • Cipralisant (GT-2331; Perceptin) histamine H<sub>3</sub> receptor antagonist
  • CX-516 (1-BCP, AMPAlex, BDP-12, SPD-420) ampakine / AMPA receptor modulator
  • CX-1739 ampakine / AMPA receptor modulator
  • Donepezil (Aricept, Aricept D, Aricept Dry Syrup, Aricept Evess, Aricept ODT, Aricept SR, Donepezil SR, E-2020, E-2022, Eranz) acetylcholinesterase inhibitor
  • Droxidopa (3,4-dihydroxyphenylserine, 3,4-threo-DOPS, L-threo-dihydroxyphenylserine, L-threodops, Northera, threo-dopaserine, threo-DOPS) prodrug of norepinephrine / adrenergic receptor agonist
  • Fasoracetam (AEVI-001, LAM-105, MDGN-001, NFC-1, NS-105) racetam / metabotropic glutamate receptor modulator
  • Ispronicline (AZD-3480, RJR-1734, TC 01734, TC-1734, TC-1734-112) α<sub>4</sub>β<sub>2</sub>-nicotinic acetylcholine receptor agonist
  • KP-106 (dextroamphetamine prodrug oral film) norepinephrine–dopamine releasing agent
  • Lauflumide (flmodafinil, bisfluoromodafinil; NLS-14, NLS-4) weak dopamine reuptake inhibitor, possibly other actions
  • Manifaxine (BW-1555U88, GW-320659) norepinephrine–dopamine reuptake inhibitor
  • Mecamylamine (Inversine, Tridmac) nicotinic acetylcholine receptor antagonist
  • MEM-68626 5-HT<sub>6</sub> receptor antagonist
  • Metadoxine [sustained/extended-release] (pyridoxine-pyrrolidone carboxylate, pyridoxine pidolate; MDX, metadoxine SR, MG-01CI) serotonin 5-HT<sub>2B</sub> receptor antagonist, GABA modulator, other actions
  • Methylphenidate [transdermal patch] (TAH-9901) norepinephrine–dopamine reuptake inhibitor
  • MK-0249 histamine H<sub>3</sub> receptor antagonist
  • Modafinil (AFT-801, Alertec, Attenace, CN-801, CRL-40476, Modasamil, Modasonil, Modavigil, Modiodal, Provigil, Sparlon, Vigil) weak dopamine reuptake inhibitor, possibly other actions
  • Nicotine/opipramol (ND-0801; opipramol/nicotine) tricyclic antidepressant / monoamine and sigma receptor modulator and nicotinic acetylcholine receptor agonist
  • NLS-8(melafenoxate) undefined mechanism
  • NS-2359 (GSK-372475) serotonin–norepinephrine–dopamine reuptake inhibitor
  • OPC-64005 serotonin–norepinephrine–dopamine reuptake inhibitor
  • ORG-26576 (ORG26576) ampakine / AMPA receptor modulator
  • PF-3654746 (PF-03654746) histamine H<sub>3</sub> receptor antagonist
  • Phacetoperane (NLS-3) methylphenidate analogue / central nervous system stimulant / norepinephrine–dopamine reuptake inhibitor (?)
  • Pirepemat (IRL-752) "cortical enhancer" / serotonin 5-HT<sub>7</sub> receptor antagonist and α<sub>2C</sub>-adrenergic receptor antagonist, other actions
  • Pozanicline (A-87089.0, ABT-089) α<sub>4</sub>β<sub>2</sub> nicotinic acetylcholine receptor agonist
  • SEP-225432 serotonin–norepinephrine–dopamine reuptake inhibitor
  • SGS-742 (CGP-36742, DVD-742, Lu-AE58479, SGS-742) GABA<sub>B</sub> receptor antagonist
  • SPD-483 undefined mechanism
  • SPD-554 (Guanfacine Carrier Wave project) α<sub>2</sub>-adrenergic receptor agonist
  • SPI-339 (NEO-339) undefined mechanism
  • TAK-137 AMPA receptor potentiator
  • TC-6683 (AZD 1446, TC-6683) α<sub>4</sub>β<sub>2</sub> nicotinic acetylcholine receptor agonist
  • Tipepidine [sustained-release] (TS-141) GIRK inhibitor
  • Vortioxetine (Brintellix, LU-AA21004, LuAA 21004, Trintellix) antidepressant / serotonin reuptake inhibitor and serotonin receptor modulator

Research programmes

  • Potassium channel modulators [Astellas Pharma/Icagen]

Formal development never or not yet started

Clinically used drugs

Approved drugs

Norepinephrine–dopamine releasing agents

Norepinephrine–dopamine reuptake inhibitors

Norepinephrine reuptake inhibitors

α<sub>2</sub>-Adrenergic receptor agonists

  • Clonidine (Catapres, CloniBID, Clonicel, Jenloga XR, Kapvay)
  • Guanfacine (Connexyn, Intuniv, Intuniv XR, Tenex)

Off-label drugs

See also

References

Further reading

External links