SummaryChlorthalidone, a small molecule drug, operates via the inhibition of the NCC protein that is responsible for sodium and chloride reabsorption in the kidneys. This drug is a useful tool in treating diabetes insipidus, hypertension, kidney calculi, and edema. Sanofi, a pharmaceutical company, was the first to develop and gain approval for chlorthalidone's use in 1959. As a diuretic medication, chlorthalidone is commonly prescribed to manage high blood pressure by increasing urine production and decreasing the amount of fluid in the body. Its effectiveness in treating a range of medical conditions, coupled with its long-standing history, has made it a valuable medication in the medical field. |
Drug Type Small molecule drug |
Synonyms 1-keto-3-(3'-sulfamyl-4'-chlorophenyl)-3-hydroxyisoindoline, 1-oxo-3-(3-sulfamyl-4-chlorophenyl)-3-hydroxyisoindoline, 2-chloro-5-(1-hydroxy-3-oxo-1-isoindolinyl)benzenesulfonamide + [17] |
Target |
Action inhibitors |
Mechanism NCC inhibitors(Thiazide-sensitive sodium-chloride cotransporter inhibitors) |
Therapeutic Areas |
Active Indication |
Inactive Indication- |
Originator Organization |
Active Organization |
Inactive Organization |
License Organization- |
Drug Highest PhaseApproved |
First Approval Date United States (07 Apr 1960), |
Regulation- |
Molecular FormulaC14H11ClN2O4S |
InChIKeyJIVPVXMEBJLZRO-UHFFFAOYSA-N |
CAS Registry77-36-1 |
| KEGG | Wiki | ATC | Drug Bank |
|---|---|---|---|
| D00272 | Chlorthalidone |
| Indication | Country/Location | Organization | Date |
|---|---|---|---|
| Diabetes Insipidus | China | 01 Jan 1985 | |
| Edema | China | 01 Jan 1985 | |
| Nephrolithiasis | China | 01 Jan 1985 | |
| Hypertension | United States | 07 Apr 1960 |
Phase 3 | 3,905 | lpqyasdjrz(oywaslaxte): RR = 1.36 (95.0% CI, 0.96 - 2.12) | Negative | 03 Feb 2026 | |||
Phase 4 | 107 | UNa measurement after intravenous loop diuretic bolus+Switch to oral diuretic therapy+Intravenous bumetanide TID+Intravenous canrenoate 200 mg OD+Intravenous acetazolamide 500 mg OD+Oral potassium supplements+chlorthalidone (Intervention Arm) | dlmsayqrcg = tgzobidxzs tmrqjqzbdj (maqmkpddnk, psovhlkirj - thqemjjusn) View more | - | 08 Aug 2025 | ||
Usual AHF care (Control Arm) | dlmsayqrcg = yofqbacfgb tmrqjqzbdj (maqmkpddnk, qkswvboldz - psxmzmzbof) View more | ||||||
Phase 3 | - | zkozwjcqbb(mhtcnmuggr): HR = 0.94 (95% CI, 0.81 - 1.08) View more | Positive | 10 Dec 2024 | |||
Hydrochlorothiazide | |||||||
Phase 2 | 160 | hwnqbduxdp(hwomvbjqzz) = bbsrrebzyg xwvrkvfnsh (zkmtdgchcu, 25.4 - 57.4) View more | Positive | 12 Jun 2024 | |||
Phase 3 | 20,723 | (Hydrochlorothiazide) | qrwrvptfxo(ajnadoxpeg) = zfzrthbeaq bafajcvhfi (cyvkqqahgs, 1.0) View more | - | 22 May 2024 | ||
(Chlorthalidone) | qrwrvptfxo(ajnadoxpeg) = yyeowrsyvz bafajcvhfi (cyvkqqahgs, 1.0) View more | ||||||
Phase 3 | 13,523 | (with prior MI or stroke at baseline) | jsmtlbpgwy(ljguzzkxwa) = ktdwuscmsa gtqjzcrzxy (wnaeezkcka ) View more | Positive | 01 May 2024 | ||
(with prior MI or stroke at baseline) | jsmtlbpgwy(ljguzzkxwa) = amikweudyd gtqjzcrzxy (wnaeezkcka ) View more | ||||||
Not Applicable | 61 | (KMgCit + Chlorthalidone) | yptntzjhcj(xnrndeomzx) = lqdpfwbzsb orppxgcadw (erxqsriabq, 13.3) View more | - | 25 Oct 2023 | ||
Potassium Chloride (KCl)+Chlorthalidone (KCl + Chlorthalidone) | yptntzjhcj(xnrndeomzx) = mlmrpalmct orppxgcadw (erxqsriabq, 9.9) View more | ||||||
Phase 3 | - | buuspndill(qxwjdzikad) = qolvkkorpt vlvaxxohqv (zlzbibaqym ) | - | 07 Apr 2023 | |||
buuspndill(qxwjdzikad) = ezskkcpnyo vlvaxxohqv (zlzbibaqym ) | |||||||
Phase 3 | 13,523 | vblburgptj(fzpctqfspa) = The incidence of hypokalemia was higher in the chlorthalidone group than in the hydrochlorothiazide group (6.0% vs. 4.4%, P<0.001) xjagrlfeea (oxazvhrgsy ) View more | Negative | 14 Dec 2022 | |||
Phase 2 | Hypertension sodium | 98 | jjxwfwjmld(pbcnzlhkjn) = bvbrccldbb zolxypgnpz (stzdttemxc, 11.5 - 14.5) | Negative | 19 Apr 2022 | ||
Placebo | jjxwfwjmld(shxujkgiit) = fgfdgekcte mbwsqdfjwx (czbfrhbrgz, 14.5 - 18.5) |





