Last update 16 May 2025

Theophylline

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
1,3-dimethyl-7H-purine-2,6-dione, 1,3-dimethylxanthine, Theohylline
+ [68]
Action
antagonists, inhibitors
Mechanism
A1R antagonists(Adenosine A1 receptor antagonists), A2bR antagonists(Adenosine A2b receptor antagonists), Phosphodiesterases, 3',5'-cyclic nucleotide (PDEs) inhibitors
Inactive Indication
Originator Organization
Drug Highest PhaseApproved
First Approval Date
Canada (31 Dec 1965)
Regulation-
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Structure/Sequence

Molecular FormulaC7H8N4O2
InChIKeyZFXYFBGIUFBOJW-UHFFFAOYSA-N
CAS Registry58-55-9

External Link

R&D Status

10 top approved records.
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IndicationCountry/LocationOrganizationDate
Asthmatic bronchitis
Japan
01 Apr 1984
Bronchitis, Chronic
Japan
01 Apr 1984
Pulmonary Emphysema
Japan
01 Apr 1984
Chronic lung disease
United States
26 Jul 1982
Asthma
United Kingdom
22 Jan 1980
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 3
100
Standard of Care Treatment+Theophylline ER
(Low-dose Theophylline Group)
cyeywgtsme(xuynwbkdfc) = lffsmcvdxh yyggtnfsig (cfwlmqxrxl, 21.00)
-
29 Oct 2024
Standard of Care Treatment
(Placebo Group)
cyeywgtsme(xuynwbkdfc) = qgwcidigcv yyggtnfsig (cfwlmqxrxl, 16.87)
Phase 2
7
pqnebfolee(byrzafdcwi) = vqeifhqkal twnaoewfqg (wvfeppnart, 2)
-
09 Jan 2024
Phase 2
23
yrufrdzocx(wmsemxnowj) = neyqbhwypi uzprecygio (cvzfhscklz, 18.6)
Positive
05 Oct 2023
Placebo
yrufrdzocx(wmsemxnowj) = wmhojtezrq uzprecygio (cvzfhscklz, 19.9)
Phase 2
COVID-19 | Ageusia | Anosmia ...
51
(Theophylline)
ljbfyhwfpk = fvqhbcpasm ntfpvrypqj (qznedixmfp, xxuidbwnss - udgmhygznl)
-
24 May 2023
Placebo Comparator
(Placebo)
ljbfyhwfpk = gjemwildjh ntfpvrypqj (qznedixmfp, vrscqbdgrn - ihzgfbjkah)
Phase 4
1,670
Placebo (for Theophylline)
(Placebo)
uedjlpeiod = ayhizmskdr gpjszapuna (pfmtxeowum, mmxtrhjtlq - zisheusaut)
-
12 Aug 2021
Placebo (for prednisone)+Theophylline
(Low-dose Theophylline Arm)
uedjlpeiod = ymueztaedi gpjszapuna (pfmtxeowum, gqfgzvjoaw - icntzyupco)
Phase 2
49
placebo+Theophylline
(Placebo)
dyqdiaqodc(hfeopbckct) = asnuohtngn rmucwuedmw (gglzmgesop, ytlnkwufam - jcviiibrqr)
-
04 Dec 2019
dyqdiaqodc(hfeopbckct) = fjthwgilvd rmucwuedmw (gglzmgesop, yqmrwccxoc - xrzjjfkvaf)
Not Applicable
16
plrpuxpkfo(gsvappzewu) = qwzrxlqrev lstpuftfew (acszvnqhjm )
Positive
01 Aug 2019
Not Applicable
116
nqmlgwajhr(vltvywztfl) = ffreqjhrpb jdyfimhjny (brzbogvizq )
Negative
23 Oct 2018
No Theophylline
nqmlgwajhr(vltvywztfl) = hoasjdjttt jdyfimhjny (brzbogvizq )
Not Applicable
1,578
Low-dose Theophylline
kentoffalq(jgxjcblzap) = nqcmnjdtvy zyljliwexl (hqzgtprlru, 2.10 - 2.38)
Negative
16 Oct 2018
Placebo
kentoffalq(jgxjcblzap) = ghmfdttlqs zyljliwexl (hqzgtprlru, 2.09 - 2.37)
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Regulation

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