National Institute of Allergy and Infectious Diseases (NIAID)

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, National Institute of Allergy and Infectious Diseases (NIAID) sits in the top decile of US sponsors by registered trial count (#5 of 15,742 sponsors by registered trial count).

2,006 total trials 155 currently recruiting 1642 completed early-phase tilt top decile by trial count

National Institute of Allergy and Infectious Diseases (NIAID): 2,006 sponsored US clinical trials, 155 recruiting.

National Institute of Allergy and Infectious Diseases (NIAID) sponsors 2,006 registered US clinical trials on ClinicalTrials.gov, 155 of them currently recruiting, and 1,642 completed. 177 of these trials are in Phase 3-4 (later-stage) and 1,291 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is HIV Infections, with 195 trials.

Top-decile sponsor footprint

National Institute of Allergy and Infectious Diseases (NIAID) ranks in the top decile of sponsors by registered trial count (#5 of 15,742 sponsors by registered trial count). Volume at this scale usually reflects a long institutional pipeline, read phase tilt and therapeutic areas below before treating it as current-year activity.

Trial completion reliability score

C 68/100

1,642 of 1,802 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (91.1%), vs. national p10 68.4% / p90 100% among 1,234 sponsors with at least 10 decided trials. Still-open trials (Recruiting, Active-not-recruiting, Not-yet-recruiting) are excluded since they have not reached an outcome yet.

Open and recent trials

2,006 total, page 35 of 41

COMPLETED Phase 1

A Phase I Evaluation of Azidothymidine (AZT) in Children With Acquired Immune Deficiency Syndrome (AIDS) or AIDS Related Complex (ARC)

NCT00000701

COMPLETED Phase 1

Safety and Effectiveness of Giving Indinavir Plus Stavudine Plus Lamivudine to HIV-Infected Children

NCT00000901

COMPLETED Phase 4

Testosterone for HIV-Positive Men With Reduced Serum Testosterone Levels and Abdominal Fat

NCT00009555

COMPLETED Phase 3

A Randomized, Comparative, Prospective Study of Daily Trimethoprim / Sulfamethoxazole (TMS) and Thrice-Weekly TMS for Prophylaxis Against PCP in HIV-Infected Patients

NCT00000748

COMPLETED Phase 1

The Safety and Effectiveness of Hydroxyurea and ddI Used Individually or Together in HIV-Infected Patients

NCT00001074

COMPLETED Phase 3

A Treatment Protocol for the Use of Trimetrexate With Leucovorin Rescue for AIDS Patients With Pneumocystis Carinii Pneumonia and Serious Intolerance to Approved Therapies

NCT00001016

COMPLETED Phase 2

The Safety and Effectiveness of Zidovudine in the Treatment of HIV-Infected Children With Mild to Moderate Symptoms

NCT00000990

COMPLETED Phase 1

Effect of Fluconazole, Clarithromycin, and Rifabutin on the Pharmacokinetics of Sulfamethoxazole-Trimethoprim and Dapsone and Their Hydroxylamine Metabolites

NCT00000826

COMPLETED Phase 1

Escalating Multiple-Dose Safety and Tolerance of WR 6026 Hydrochloride in HIV-Infected Subjects

NCT00000740

COMPLETED Phase 2

A Multicenter, Prospective, Randomized, Double-Blind Clinical Trial Comparing Itraconazole Oral Solution in Cyclodextrin to Placebo in the Treatment of Aspergilloma

NCT00005668

COMPLETED Phase 2

Comparison of Liposomal Doxorubicin Used Alone or in Combination With Bleomycin Plus Vincristine in the Treatment of Kaposi's Sarcoma in Patients With AIDS

NCT00001059

COMPLETED Phase 2

APSV in Vaccinia Naive Adults

NCT00050518

COMPLETED Phase 1

A Phase I Concentration-Controlled Trial to Assess the Safety, Tolerance, Pharmacokinetics and Development of Decreased HIV-1 Susceptibility to the Combination of Atevirdine Mesylate (U-87201E), Zidovudine (AZT), and Didanosine (ddI)

NCT00000742

COMPLETED Phase 1

A Study of the Effects of Giving Two Anti-HIV Vaccines to Babies of HIV-Positive Mothers

NCT00000879

COMPLETED Phase 1

Phase I Trial of mBACOD and Granulocyte-Macrophage Colony-Stimulating Factor (GM-CSF) in AIDS-Associated Large Cell, Immunoblastic, and Small Non-cleaved Lymphoma

NCT00000689

COMPLETED Phase 1

Safety of and Immune System Response to an HIV Vaccine (EP HIV-1090) in HIV Uninfected Adults

NCT00054860

COMPLETED Phase 1

The Safety of Zidovudine Plus Interferon-Alpha in HIV-Infected Children

NCT00000967

COMPLETED Phase 1

Methadone Effects on Zidovudine (ZDV, AZT) Disposition

NCT00000800

COMPLETED NA

A Randomized, Prospective, Double-Blind Study Comparing Fluconazole With Placebo for Primary and Secondary Prophylaxis of Mucosal Candidiasis in HIV-Infected Women

NCT00000744

COMPLETED NA

Evaluation of the Interaction Between Low Dose Sulfamethoxazole-Trimethoprim and Zidovudine

NCT00000732

COMPLETED Phase 1

A Study of Zidovudine Plus Interleukin-2 in HIV-Infected Patients Who Have No Symptoms of Infection But Who Have Tender Lymph Nodes

NCT00001005

COMPLETED

Stopping and Restarting Anti-HIV Drugs in Children and Adolescents With Low Blood Levels of HIV

NCT00016783

COMPLETED Phase 1

Comparison of Two Dosage Regimens of Oral Dapsone for Prophylaxis of Pneumocystis Carinii Pneumonia in Pediatric HIV Infection

NCT00000739

COMPLETED Phase 1

Phase I Safety and Pharmacokinetics Study of Microparticulate Atovaquone (m-Atovaquone; 566C80) in HIV-Infected and Perinatally Exposed Infants and Children

NCT00000773

COMPLETED

Discontinuation of Antiretroviral Therapy in Patients With Asymptomatic HIV Infection

NCT00050284

COMPLETED Phase 1

Granulocyte-Macrophage Colony-Stimulating Factor and Zidovudine: A Phase I Study of Concurrent Administration in Patients With AIDS and Severe ARC

NCT00000711

COMPLETED Phase 1

A Study to Evaluate the Effect of Nandrolone Decanoate in Women With HIV-Associated Weight Loss

NCT00000854

COMPLETED Phase 1

A Phase I Safety and Pharmacokinetics Study of 2',3'-Dideoxyinosine (ddI) Administered Twice Daily to Infants and Children With AIDS or Symptomatic HIV Infection

NCT00000669

COMPLETED Phase 2

A Comparison of Two Anti-HIV Drug Regimens for Youth Who Have Failed Prior Therapy

NCT00102206

COMPLETED Phase 2

A Phase II/III Trial of Human Anti-CMV Monoclonal Antibody MSL 109 (MACRT)

NCT00000836

COMPLETED NA

A Study to Evaluate the Effects of Azithromycin on MAC Disease Prevention in HIV-Positive Patients

NCT00000947

COMPLETED Phase 1

A Study to Test the Safety, Tolerance, and Metabolism of Abacavir (1592U89, ABC) With Standard Zidovudine (ZDV) Therapy in Newborn Infants Born to HIV-1 Infected Women

NCT00000864

COMPLETED

Effects of Therapeutic HIV Vaccination on Control of HIV After Discontinuation of Anti-HIV Drugs

NCT00050063

COMPLETED NA

Metabolism of Antituberculosis Drugs in HIV-Infected Persons With Tuberculosis

NCT00000950

COMPLETED Phase 1

A Phase I Study of the Safety and Pharmacokinetics of Recombinant Human CD4-Immunoglobulin G (rCD4-IgG) Administered by Intravenous Bolus Injection in Combination With Oral Zidovudine in Patients With AIDS and AIDS-Related Complex

NCT00000976

COMPLETED Phase 1

Safety and Effectiveness of Anti-HIV Vaccines in HIV-Negative Adults

NCT00000904

COMPLETED Phase 1

A Randomized Phase I Safety and Immunogenicity Trial of Live Recombinant Canarypox ALVAC-HIV vCP205 Delivered by Alternate Mucosal Routes in HIV-1 Uninfected Adult Volunteers

NCT00000884

COMPLETED

A Study to Evaluate the Effects of Stopping Maintenance Therapy for Cytomegalovirus (CMV) Retinitis After Effective Anti-HIV Therapy

NCT00000905

COMPLETED Phase 2

A Randomized, Double-Blind Phase II/III Trial of Monotherapy vs. Combination Therapy With Nucleoside Analogs in HIV-Infected Persons With CD4 Cells of 200-500/mm3

NCT00000625

COMPLETED NA

Preventive Treatment Against Tuberculosis (TB) in Patients With Human Immunodeficiency Virus (HIV) Infection and Confirmed Latent Tuberculous Infection

NCT00000638

COMPLETED Phase 1

A Phase I Study of Methotrexate for HIV Infection

NCT00000834

COMPLETED Phase 2

A Study to Compare Anti-HIV Drugs Given Twice a Day or Once a Day, With or Without Direct Observation

NCT00036452

COMPLETED Phase 1

Safety of AMD070 When Administered Alone or Boosted With Low-Dose Ritonavir in HIV Uninfected Men

NCT00063804

COMPLETED Phase 1

Anti-HIV Activity and Safety of 3 Different Doses of Mifepristone in HIV Infected People

NCT00099645

COMPLETED Phase 1

Phase I/II Study of Recombinant Human Interferon-gamma (rIFN-gamma) in HIV-Infected Children

NCT00000761

COMPLETED Phase 2

A Study of WR 6026 in the Treatment of Pneumocystis Carinii Pneumonia (PCP) in HIV-Infected Patients

NCT00000863

COMPLETED Phase 1

A Phase I Open-Label Study of the Safety, Tolerance, and Pharmacokinetic Interactions of Combination Didanosine and Ribavirin in HIV-Positive Individuals

NCT00000772

COMPLETED Phase 1

Safety and Effectiveness of CD4-IgG2 in HIV-Positive Children

NCT00000876

COMPLETED Phase 2

A Study to Compare The Ability of Different Anti-HIV Drugs to Decrease Viral Load After Nelfinavir (an Anti-HIV Drug)Treatment Failure

NCT00000918

COMPLETED Phase 3

A Study of Three Drugs Plus Zidovudine in the Prevention of Infections in HIV-Infected Patients

NCT00000991

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Phase Distribution

PhaseTrial count
Phase 1 858
Phase 2 433
Phase 3 123
Phase 4 54

What is open in the National Institute of Allergy and Infectious Diseases (NIAID) pipeline

155 recruiting of 2,006 indexed (8% open); 1,642 completed (82%).

Phase mix: 177 late (III/IV) vs 1,291 early (I/II) (early-phase heavy).

Top condition: HIV Infections (195 trials), 9 others listed.

How open-pipeline share is computed

Recruiting share is recruiting_count divided by trial_count for this sponsor in the public registry export. Status can change between pulls; treat the figure as a research-attention snapshot, not product availability.

National Institute of Allergy and Infectious Diseases (NIAID): open-pipeline peers nationwide

Peers matched on 2,006 registered trials and 8% open enrollment, not the therapeutic-area sidebar.

National Institute of Allergy and Infectious Diseases (NIAID) sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot). 2×2 strategic matrix plotting 9 entities by Total trials (X) and Recruiting share (Y), with a crosshair dividing the plot into four quadrants. Higher volume & more openFocused & more openHigher volume, mostly closedSmaller & mostly closed 05001,0001,5002,0002,500 5%10%15%20% Total trials Recruiting share National Institute of Allergy and Infectious Diseases (NIAID)Massachusetts General HospitalMemorial Sloan Kettering Cancer CenterPfizerStanford UniversityAlumisAndrei IagaruBioXcel TherapeuticsCorporal Michael J. Crescenz VA Medical Center
National Institute of Allergy and Infectious Diseases (NIAID) sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

National Institute of Allergy and Infectious Diseases (NIAID) sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together.

Sponsors near 2,006 trials (± recruiting share)

Sponsors near 8% open enrollment (± trial volume)

What to do with this National Institute of Allergy and Infectious Diseases (NIAID) page

2,006 registered trials is a research-attention snapshot, not an endorsement of National Institute of Allergy and Infectious Diseases (NIAID) or any single study.

  • 155 of National Institute of Allergy and Infectious Diseases (NIAID)'s trials are currently recruiting, check each one's own eligibility criteria before contacting a site. Browse recruiting trials
  • HIV Infections is the condition National Institute of Allergy and Infectious Diseases (NIAID) studies most, compare against other sponsors active in the same condition before evaluating a specific study. See HIV Infections trials
  • Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide

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. National Institute of Allergy and Infectious Diseases (NIAID) pipeline card: 2,006 registered trials from official public datasets. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.