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ClinicalTrials.gov 1 recruiting now early-phase tilt small index

Drug Allergy: early-phase trial registry

1 of 1 indexed Drug Allergy trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #11,370 of 28,707 conditions by registered trial count.

1 US clinical trials · 1 currently recruiting · #11,370 of 28,707 conditions by registered trial count

Drug Allergy: 1 US clinical trial tracked, 1 recruiting.

Drug Allergy is the subject of 1 registered US clinical trials on ClinicalTrials.gov, 1 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 1 in Phase 1-2 (earlier-stage). The most active sponsor is Massachusetts General Hospital, running 1 of these trials.

Enrollment posture brief

Registry condition drug-allergy

OPEN 1 | RECR 100% | LATE 0 | EARLY 1 | RANK #11370 | SPON 1

Nearest open-share peer: Aortic Arch Aneurysm (100% recruiting · 5 trials)

Drug Allergy (this)100%Ablation80%ACL Reconstruction80%Abuse, Drug60%Acceptability60%
Open-enrollment share among volume-matched conditions near Drug Allergy

Drug Allergy lists 1 open slots (100% of 1 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Drug Allergy on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Drug Allergy is recruiting above its size-band peers.

    1 of 1 indexed trials (100%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

Phase 21

Phase Distribution

PhaseTrial count
Phase 2 1

Top Sponsors

Named interventions

Most-linked intervention names on Drug Allergy records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Amoxicillin double-blind placebo-controlled drug challenge Drug
1 trials
Dissimilar cephalosporin (ceftriaxone or cefazolin) antibiotic double-blind placebo-controlled drug challenge Drug
1 trials
Similar cephalosporin (cefepime, ceftriaxone, cefaclor, cephalexin, cefixime, or cefdinir) antibiotic double-blind placebo-controlled drug challenge Drug
1 trials
Culprit cephalosporin (cefazolin, ceftazidime, ceftriaxone, cefepime, cephalexin, cefaclor, cefadroxil, cefuroxime, cefpodoxime, cefdinir, or cefixime) double-blind placebo-controlled drug challenge Drug
1 trials
Beta-lactam antibiotic (cefazolin, cefuroxime, cefotaxime, ceftazidime, ceftriaxone, cefepime, pre-pen, penicillin G, ampicillin, and histamine) double-blind skin testing Drug
1 trials

US sites by state

Facility locations filed on Drug Allergy trials. A trial with sites in several states counts in each.

Texas 1 trials
Tennessee 1 trials
New York 1 trials
Massachusetts 1 trials
California 1 trials
Arizona 1 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Drug Allergy page

1 registered trials, 1 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Drug Allergy condition card totals 1 registered trials; most-linked intervention Amoxicillin double-blind placebo-controlled drug challenge; top US site state Texas. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.