> Trialight public data. Index of pages: https://trialight.com/llms.txt
> Web page: https://trialight.com/data/asset/cilastatin-90ee9774-cb9f-45bf-b8ba-c3544f68c87e
> Record changed: 2026-11-04

# Cilastatin

Highest phase reached

Approved

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL766)

Drug type

Small molecule

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL766)

First approval year

1985

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL766)

## Development status

**First approval year**

1985

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL766)

**Listing at source**

Listed

**Highest phase reached**

Approved

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL766)

## Names and chemistry

**Drug type**

Small molecule

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL766)

**Drug name**

Cilastatin

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL766)

**Molecular weight**

358.46

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL766)

**Structure (SMILES)**

CC1(C)C\[C@@H\]1C(=O)N/C(=C\\CCCCSC\[C@H\](N)C(=O)O)C(=O)O

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL766)

### Other names (17)

- cilastatin
- Cilastatin
- cilastatin \[INN\]
- CILASTATIN \[MI\]
- CILASTATIN \[VANDF\]
- Cilastatin \[WHO-DD\]
- cilastatin inn
- cilastatin mi
- cilastatin vandf
- cilastatin who dd
- cilastatina
- Cilastatina
- cilastatine
- Cilastatine
- primaxin
- Primaxin
- primaxin iv 500 mg powder for solution for infusion

## Identifiers

**CAS registry numbers**

- 82009-34-5

**ChEMBL ID**

CHEMBL766

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL766)

**InChIKey**

DHSUYTOATWAVLW-WFVMDLQDSA-N

Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL766)

**PubChem compound IDs**

- 6435415

**RxNorm IDs (RxCUI)**

- 2540

**FDA ingredient codes (UNII)**

- 141A6AMN38

## Regulatory information

### United States

**Applicant**

MERCK

**Approval date**

26 Nov 1985

**Application number**

NDA050587

### Other regulatory facts

**First in class**

No

**Orphan designation**

No

**Availability**

Prescription only

## Approval status

**United States (FDA)**

Approved

## Pharmacology

### Drug classification

**Pharmacology name**

cilastatin

**Type**

Synthetic organic

**Drug name stem**

\-stat-

**Approval recorded by Guide to Pharmacology**

Yes

#### Administration routes

- Parenteral

### Mechanisms of action

- **Mechanism**  
Renal dipeptidase inhibitor

**Action type**  
Inhibitor

**Target**  
Dipeptidase 1

**Protein identifier**  
P16444

### Open Targets mechanisms

- **Mechanism**  
Renal dipeptidase inhibitor

**Action type**  
Inhibitor

**Target**  
Dipeptidase 1

### DrugCentral mechanisms

- **Action type**  
Inhibitor

**Gene symbol**  
DPEP1

**Protein identifier**  
P16444

**Organism**  
Homo sapiens

**Target development level**  
Clinical

### Investigated indications (9)

- **Condition**  
Infections

**Highest recorded phase**  
2

**Condition identifier**  
EFO:0000544

**Subject identifier**  
D007239
- **Condition**  
Bacterial Infections

**Highest recorded phase**  
3

**Condition identifier**  
EFO:0000771

**Subject identifier**  
D001424
- **Condition**  
Osteomyelitis

**Highest recorded phase**

0.5

**Condition identifier**  
EFO:0003102

**Subject identifier**  
D010019
- **Condition**  
Urinary Tract Infections

**Highest recorded phase**  
3

**Condition identifier**  
EFO:0003103

**Subject identifier**  
D014552
- **Condition**  
Pyelonephritis

**Highest recorded phase**  
3

**Condition identifier**  
EFO:1001141

**Subject identifier**  
D011704
- **Condition**  
Pneumonia, Bacterial

**Highest recorded phase**  
3

**Condition identifier**  
EFO:1001272

**Subject identifier**  
D018410
- **Condition**  
Pneumonia, Ventilator-Associated

**Highest recorded phase**  
3

**Condition identifier**  
EFO:1001865

**Subject identifier**  
D053717
- **Condition**  
Sepsis

**Highest recorded phase**  
1

**Condition identifier**  
HP:0100806

**Subject identifier**  
D018805
- **Condition**  
Hematologic Neoplasms

**Highest recorded phase**  
2

**Condition identifier**  
MONDO:0044881

**Subject identifier**  
D019337

### Open Targets indications (16)

- **Condition identifier**  
EFO\_0000544

**Highest recorded phase**  
3
- **Condition identifier**  
EFO\_0000771
- **Condition identifier**  
EFO\_0003102
- **Condition identifier**  
EFO\_0003103

**Highest recorded phase**  
3
- **Condition identifier**  
EFO\_0011056

**Highest recorded phase**  
2
- **Condition identifier**  
EFO\_1001272

**Highest recorded phase**  
3
- **Condition identifier**  
EFO\_1001865

**Highest recorded phase**  
3
- **Condition identifier**  
HP\_0100523

**Highest recorded phase**  
3
- **Condition identifier**  
HP\_0100806

**Highest recorded phase**  
1
- **Condition identifier**  
MONDO\_0003529

**Highest recorded phase**  
3
- **Condition identifier**  
MONDO\_0005113

**Highest recorded phase**  
4
- **Condition identifier**  
MONDO\_0005249

**Highest recorded phase**  
3
- **Condition identifier**  
MONDO\_0021678
- **Condition identifier**  
MONDO\_0021678

**Highest recorded phase**  
4
- **Condition identifier**  
MONDO\_0100338

**Highest recorded phase**  
3
- **Condition identifier**  
MONDO\_0700051

**Highest recorded phase**  
3

### Reported adverse events (38)

- **Event**  
agranulocytosis

**Reports**  
17

**Reporting signal score**

26.49
- **Event**  
anaphylactic shock

**Reports**  
10

**Reporting signal score**

10.5639
- **Event**  
arthralgia

**Reports**  
1

**Reporting signal score**

12.4553
- **Event**  
asthenia

**Reports**  
2

**Reporting signal score**

9.65954
- **Event**  
blood alkaline phosphatase increased

**Reports**  
13

**Reporting signal score**

14.2596
- **Event**  
burkholderia cepacia infection

**Reports**  
2

**Reporting signal score**

11.3259
- **Event**  
candidiasis

**Reports**  
5

**Reporting signal score**

10.669
- **Event**  
cholestasis

**Reports**  
12

**Reporting signal score**

14.5133
- **Event**  
clostridial infection

**Reports**  
5

**Reporting signal score**

10.7978
- **Event**  
clostridium colitis

**Reports**  
5

**Reporting signal score**

15.5378
- **Event**  
clostridium difficile colitis

**Reports**  
8

**Reporting signal score**

12.7283
- **Event**  
convulsion

**Reports**  
123

**Reporting signal score**

310.695
- **Event**  
cutaneous vasculitis

**Reports**  
4

**Reporting signal score**

8.99697
- **Event**  
cytolytic hepatitis

**Reports**  
11

**Reporting signal score**

27.0922
- **Event**  
depressed level of consciousness

**Reports**  
12

**Reporting signal score**

9.322
- **Event**  
dermatitis exfoliative

**Reports**  
13

**Reporting signal score**

30.5494
- **Event**  
dizziness

**Reports**  
3

**Reporting signal score**

12.3328
- **Event**  
drug rash with eosinophilia and systemic symptoms

**Reports**  
15

**Reporting signal score**

41.4902
- **Event**  
eosinophilia

**Reports**  
21

**Reporting signal score**

39.1356
- **Event**  
epilepsy

**Reports**  
17

**Reporting signal score**

22.4673
- **Event**  
extradural abscess

**Reports**  
3

**Reporting signal score**

8.99459
- **Event**  
gamma-glutamyltransferase increased

**Reports**  
17

**Reporting signal score**

23.0236
- **Event**  
grand mal convulsion

**Reports**  
19

**Reporting signal score**

42.7516
- **Event**  
headache

**Reports**  
3

**Reporting signal score**

15.8482
- **Event**  
intrauterine infection

**Reports**  
3

**Reporting signal score**

14.4538

And 13 more, listed on the interactive page.

### Trial references (20)

- NCT00080496  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT00080496)
- NCT00707239  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT00707239)
- NCT02493764  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT02493764)
- NCT05204563  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05204563)
- NCT00589693  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT00589693)
- NCT00690378  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT00690378)
- NCT01505634  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT01505634)
- NCT02321800  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT02321800)
- NCT05204368  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05204368)
- NCT06059846  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06059846)
- NCT01381549  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT01381549)
- NCT01506271  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT01506271)
- NCT02971423  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT02971423)
- NCT02099240  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT02099240)
- NCT02452047  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT02452047)
- NCT04787562  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT04787562)
- NCT04801043  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT04801043)
- NCT04802863  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT04802863)
- NCT04493151  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT04493151)
- NCT04983901  
Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT04983901)

## Dosing

**Dose**

1.25 grams (imipenem 500 mg, cilastatin 500 mg, relebactam 250 mg)

**Route**

Intravenous

**How often**

Every 6 hours

## Chemical properties

**Hydrogen bond acceptors**

5

**Hydrogen bond donors**

4

**Polar surface area**

129.72

**Calculated partition coefficient (ALogP)**

1.43

**Calculated partition coefficient (XLogP)**

\-1

**Prodrug**

No

**Chirality**

Single enantiomer

**Inorganic**

No

**Rule-of-five violations**

0

**Rotatable bonds**

11

**Heavy atoms**

24

**Molecular formula**

C16H26N2O5S

**Monoisotopic mass**

358.15624311

**Natural product**

Yes

## National Drug Codes

- 0006-3856

## Evidence counts

**Recorded assays**

191

**Active assays**

4

### Active assay types

- Confirmatory

## Pharmacologic actions

- Protease Inhibitors  
Source: [id.nlm.nih.gov](https://id.nlm.nih.gov/mesh/D011480.html)

## Related records

### Trials (35)

- A Double-blind Non Inferiority Clinical Trial to Compare the Nephroprotection of Cilastatn Versus Thiosulfate in Patients Undergoing Debulking Surgery With Intraoperative Hyperthermic Intraperitoneal Chemotherapy With Cisplatin.
- A Safety and Tolerability Study of Doripenem in Patients With Abdominal Infections or Pneumonia
- A Single-Dose Study to Investigate the Pharmacokinetics of MK-7655 in Participants With Impaired Renal Function (MK-7655-005)
- A Study of Efficacy and Safety of Intravenous Cefiderocol (S-649266) Versus Imipenem/Cilastatin in Complicated Urinary Tract Infections
- [A Study of Oral Tebipenem Pivoxil Hydrobromide (TBP-PI-HBr) Compared to Intravenous Imipenem-cilastatin in Participants With Complicated Urinary Tract Infection (cUTI) or Acute Pyelonephritis (AP)](https://trialight.com/data/trial/a-study-of-oral-tebipenem-pivoxil-hydrobromide-tbp-pi-hbr-dab1abf3-cb71-4379-a9eb-6a9c4ae939d7.md)
- A Study of the Safety and Effectiveness of Levofloxacin Compared With Imipenem/Cilastatin in Patients With Pneumonia Acquired During Hospitalization
- A Study To Determine The Efficacy And Safety Of Tigecycline Compared With Imipenem/Cliastatin to Treat Complicated Intra-Abdominal Infection
- Bacteriophage Therapy for Mycobacterium Abscessus Pulmonary Infection
- Comparative Study of NXL104/Ceftazidime Versus Comparator in Adults With Complicated Urinary Tract Infections
- Comparing Efficacy and Safety of (Meropenem + Colistin) Versus (Imipenem/Cilastatin + Tigecycline) on Eradication of Multi-Drug Resistance Bacteria
- Complicated Skin and Skin Structure Infections
- Efficacy and Safety of Cefepime/Nacubactam or Aztreonam/Nacubactam Compared to Imipenem/Cilastatin in Subjects With Complicated Urinary Tract Infections or Acute Uncomplicated Pyelonephritis
- Efficacy and Safety of Imipenem+Cilastatin/Relebactam (MK-7655A) in Japanese Participants With Complicated Intra-abdominal Infection or Complicated Urinary Tract Infection (MK-7655A-017)
- Efficacy and Safety of Imipenem+Cilastatin/Relebactam (MK-7655A) Versus Colistimethate Sodium+Imipenem+Cilastatin in Imipenem-Resistant Bacterial Infection (MK-7655A-013)
- Evaluation of Safety and Efficacy of Intravenous Sulbactam-ETX2514 in the Treatment of Hospitalized Adults With Complicated Urinary Tract Infections
- Evaluation of the Safety, Tolerability and Pharmacokinetics of Intravenous ETX2514 Administered in Healthy Subjects
- GSK2251052 in Complicated Urinary Tract Infection
- Imipenem/Cilastatin-XNW4107 Versus Imipenem/Cilastatin/Relebactam for Treatment of Participants With Bacterial Pneumonia (XNW4107-302, REITAB-2)
- Imipenem/Cilastatin/Relebactam Pharmacokinetics, Safety, and Outcomes in Adults and Adolescents With Cystic Fibrosis
- Imipenem/Cilastatin/Relebactam PK in ECMO

### Approved for (1)

- [Gram-negative bacterial infections](https://trialight.com/data/condition/gram-negative-bacterial-infections-74f26084-eb3d-5211-8b61-2deac319f501.md)

### In development for (9)

- [Acute pyelonephritis](https://trialight.com/data/condition/acute-pyelonephritis-83bd05de-bc8b-595e-ba5a-ab06709e6b77.md) Phase 3
- [Bacterial infectious disease](https://trialight.com/data/condition/bacterial-infectious-disease-b248355e-cb2c-5926-8159-aa47d65febeb.md) Phase 3
- [Bacterial pneumonia](https://trialight.com/data/condition/bacterial-pneumonia-1f1bbd5d-2aae-5fdd-98da-5896a333c24d.md) Phase 3
- [Hematopoietic and lymphoid cell neoplasm](https://trialight.com/data/condition/hematopoietic-and-lymphoid-cell-neoplasm-ed3616fa-22fe-5984-94b4-745416e01ef9.md) Phase 2
- Liver abscess (disease) Phase 3
- Osteomyelitis Early phase 1
- [Pneumonia](https://trialight.com/data/condition/pneumonia-d2f12d4d-57c5-5c54-881e-1efe392849eb.md) Phase 3
- [Pyelonephritis](https://trialight.com/data/condition/pyelonephritis-3fc522f3-1bbe-5d31-9ffb-eacaa85f46c4.md) Phase 3
- [Urinary tract infection](https://trialight.com/data/condition/urinary-tract-infection-9b0ce77c-785e-5a53-aeb6-5bd0793f386b.md) Phase 3

### Targets (1)

- [DPEP1](https://trialight.com/data/target/dpep1-602b76f7-f902-5a8f-8301-f7e9aa2a0f23.md) Renal dipeptidase inhibitor

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