Evidence map›Paper›PMID 26259792›Full record

ArticleAntimicrobial agents and chemotherapy2015

Carbapenems and Rifampin Exhibit Synergy against Mycobacterium tuberculosis and Mycobacterium abscessus.

Amit Kaushik, Nayani Makkar, Pooja Pandey, Nicole Parrish, Urvashi Singh, Gyanu Lamichhane

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed
8.5field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

77 citing papers in PubMed, 125 citations in OpenAlex.

  1. Trial
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  5. Review
  6. Characterization of a novelCurrent research in microbial sciences · 2026
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  7. Review
  8. Peptidoglycan LD-Transpeptidases.Antibiotics (Basel, Switzerland) · 2025
    Review
  9. Article
  10. Sanfetrinem, an oral β-lactam antibiotic repurposed for the treatment of tuberculosis.Drug resistance updates : reviews and commentaries in antimicrobial and anticancer chemotherapy · 2025
    Article
  11. Beta-lactam combination treatment overcomes rifampicin resistance in Mycobacterium tuberculosis.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025
    Article
  12. Article
  13. Review
  14. Article
  15. Metabolic Rewiring ofMetabolites · 2024
    Review
  16. TheAntimicrobial agents and chemotherapy · 2023
    Article
  17. MedComm · 2023
    Review
  18. Article
  19. Mutations inmBio · 2023
    Article
  20. Article

17 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Amit KaushikTaskforce to Study Resistance Emergence & Antimicrobial Development Technology, Department of Medicine, Johns Hopkins University, Baltimore, Maryland, USA.
Nayani MakkarDepartment of Microbiology, All India Institute of Medical Sciences, New Delhi, India.
Pooja PandeyDepartment of Microbiology, All India Institute of Medical Sciences, New Delhi, India.
Nicole ParrishDepartment of Pathology, Johns Hopkins University, Baltimore, Maryland, USA.
Urvashi SinghDepartment of Microbiology, All India Institute of Medical Sciences, New Delhi, India.
Gyanu LamichhaneTaskforce to Study Resistance Emergence & Antimicrobial Development Technology, Department of Medicine, Johns Hopkins University, Baltimore, Maryland, USA lamichhane@jhu.edu.
All India Institute of Medical Sciences · INJohns Hopkins University · US

Funding

New Drug for Treatment of Chronic Bacterial InfectionDP2OD008459 · OD · JOHNS HOPKINS UNIVERSITY · PI LAMICHHANE, GYANU · 2011 to 2013
$2.6M
Development of an Oral Carbapenem Drug for Treatment of Drug Resistant TBR21AI111739 · NIAID · JOHNS HOPKINS UNIVERSITY · PI LAMICHHANE, GYANU · 2014 to 2015
$453k
NIAID NIH HHS 1R21AI111739-01NIAID NIH HHS R21 AI111739NIH HHS 1DP2OD008459-01NIH HHS DP2 OD008459
6 · The paper itself

Abstract

An effective regimen for treatment of tuberculosis (TB) is comprised of multiple drugs that inhibit a range of essential cellular activities in Mycobacterium tuberculosis. The effectiveness of a regimen is further enhanced if constituent drugs act with synergy. Here, we report that faropenem (a penem) or biapenem, doripenem, or meropenem (carbapenems), which belong to the β-lactam class of antibiotics, and rifampin, one of the drugs that forms the backbone of TB treatment, act with synergy when combined. One of the reasons (carba)penems are seldom used for treatment of TB is the high dosage levels required, often at the therapeutic limits. The synergistic combination of rifampin and these (carba)penems indicates that (carba)penems can be administered at dosages that are therapeutically relevant. The combination of faropenem and rifampin also limits the frequency of resistant mutants, as we were unable to obtain spontaneous mutants in the presence of these two drugs. The combinations of rifampin and (carba)penems were effective not only against drug-sensitive Mycobacterium tuberculosis but also against drug-resistant clinical isolates that are otherwise resistant to rifampin. A combination of doripenem or biapenem and rifampin also exhibited synergistic activity against Mycobacterium abscessus. Although the MICs of these three drugs alone against M. abscessus are too high to be of clinical relevance, their concentrations in combinations are therapeutically relevant; therefore, they warrant further evaluation for clinical utility to treat Mycobacterium abscessus infection, especially in cystic fibrosis patients.

Indexed as

Antitubercular Agentsbeta-LactamsCarbapenemsDoripenemDrug SynergismMeropenemMicrobial Sensitivity TestsMycobacteriumMycobacterium tuberculosisRifampinThienamycinsAntitubercular Agentsbeta-LactamsbiapenemCarbapenemsDoripenemfropenemMeropenemRifampinThienamycins

Identifiers

PMID26259792
PMCPMC4576034
OpenAlexW2147459528

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.