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 36 of 41

COMPLETED

HIV Levels in Cerebrospinal Fluid and Brain Function in Patients Receiving Anti-HIV Drugs

NCT00001103

COMPLETED Phase 2

A Phase II Double-Blind Study of Delavirdine Mesylate ( U-90152 ) in Combination With Zidovudine ( AZT ) and/or Didanosine ( ddI ) Versus AZT and ddI Combination Therapy

NCT00000803

COMPLETED NA

An HIV Vaccine Preparedness Study

NCT00000915

COMPLETED Phase 2

A Study of Dideoxycytidine Plus Zidovudine (AZT) in HIV-Infected Children Who Have Taken AZT

NCT00001032

COMPLETED NA

A Study to Evaluate the Safety and Tolerability of Zidovudine (ZDV) in Premature Infants Born to HIV-Positive Women.

NCT00000855

COMPLETED Phase 1

Phase I Safety and Immunogenicity Trial of Vaccinia-HIV Envelope Recombinant Vaccine (HIVAC-1e) in Combination With Soluble Recombinant Envelope Vaccine (gp160; VaxSyn)

NCT00000630

COMPLETED Phase 3

A Randomized, Comparative Study of Daily Dapsone and Daily Atovaquone for Prophylaxis Against PCP in HIV-Infected Patients Who Are Intolerant of Trimethoprim and/or Sulfonamides

NCT00000802

COMPLETED Phase 1

A Phase I Multicenter Trial to Evaluate the Safety and Immunogenicity of HIV-1 Recombinant Envelope Glycoprotein gp160

NCT00000757

COMPLETED Phase 1

A Phase I Safety and Immunogenicity Trial of UBI SynVac (HIV-1 MN Octameric V3 Peptide Vaccine)

NCT00000775

COMPLETED Phase 2

A Phase II/III Trial of Rifampin, Ciprofloxacin, Clofazimine, Ethambutol, and Amikacin in the Treatment of Disseminated Mycobacterium Avium Infection in HIV-Infected Individuals.

NCT00000641

COMPLETED Phase 3

A Randomized, Controlled Study of Intravenous Ganciclovir Therapy for Peripheral Cytomegalovirus Retinitis in Patients With AIDS

NCT00000688

COMPLETED NA

Continuous High-Dose Intravenous Dextran Sulfate in Human Immunodeficiency Virus-Infected Individuals

NCT00000684

COMPLETED NA

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

NCT00000636

COMPLETED NA

Effect of an Intrauterine Contraceptive Device (IUD) in HIV Infected Women

NCT00096694

COMPLETED Phase 2

Increasing HAART-Induced Immune Restoration With Cyclosporine

NCT00031070

COMPLETED Phase 1

A Phase I/II Open Label Study To Evaluate the Antiviral Potential of Combination Low-Dose Therapy With Zidovudine and Interferon-Alpha 2A in Patients With Symptomatic HIV Disease

NCT00000696

COMPLETED Phase 1

A Phase I Study of the Safety and Pharmacokinetics of Recombinant Human CD4 Immunoglobulin (rCd4-IgG) Administered by Intravenous Bolus in Patients With AIDS and AIDS Related Complex

NCT00000675

COMPLETED NA

Interleukin-2 (IL-2), Pegylated Interferon (PEG-IFN Alfa-2b), and Ribavirin (RBV) Treatment in Patients With Hepatitis C and HIV Coinfection

NCT00015652

COMPLETED Phase 1

A Phase I Study of TNP-470 in the Treatment of AIDS-Associated Kaposi's Sarcoma

NCT00000763

COMPLETED Phase 2

Comparison of New Anti-HIV Drug Combinations in HIV-Infected Children Who Have Taken Anti-HIV Drugs

NCT00001083

COMPLETED Phase 3

A Multicenter Placebo-Controlled Double-Blind Trial to Evaluate Azidothymidine (AZT) Treatment of the AIDS Dementia Complex and Central Nervous System (CNS) Human Immunodeficiency Virus (HIV) Infection

NCT00000702

COMPLETED Phase 1

A Phase I Trial of HIV-1 C4-V3 Polyvalent Peptide Vaccine in HIV-1 Infected Persons

NCT00001060

COMPLETED NA

A Treatment IND for Retrovir Brand Zidovudine (AZT) Therapy of Pediatric Patients With HIV Disease

NCT00000662

COMPLETED Phase 2

Treatment With Combinations of Several Antiviral Drugs in Infants and Young Children With HIV Infection

NCT00000872

COMPLETED Phase 2

The Safety and Effectiveness of Ganciclovir in the Prevention of Cytomegalovirus (CMV) of the Eyes and Disease of the Stomach and Intestines in Patients With HIV

NCT00001034

COMPLETED NA

HPMPC (Cidofovir) Peripheral CMV Retinitis Trial Protocol

NCT00000799

COMPLETED Phase 2

A Study to Compare the Effectiveness of Different Anti-HIV Drug Regimens in Keeping Levels of HIV in the Blood as Low as Possible

NCT00000939

COMPLETED

Carotid Artery Thickness in HIV Infected and Uninfected Adults

NCT00007319

COMPLETED NA

Effect of Interleukin-2 on HIV Treatment Interruption

NCT00015704

COMPLETED Phase 3

Trimetrexate Plus Leucovorin Calcium Rescue Versus Sulfamethoxazole-Trimethoprim in the Treatment of Pneumocystis Carinii Pneumonia (PCP) in Patients With AIDS

NCT00001014

COMPLETED Phase 1

A Phase I, Placebo-Controlled, Dose-Escalation Study of the Safety, Tolerability, and Pharmacokinetics of Thalidomide in Subjects With HIV-1 Infection

NCT00000812

COMPLETED Phase 2

A Comparison of Three Treatments for Advanced HIV Disease in Patients Who Have Received Nucleoside Therapy in the Past

NCT00001029

COMPLETED Phase 3

HIV Prevention Counseling for Men Who Have Sex With Men

NCT00000931

COMPLETED Phase 2

An Open-Label, Pilot Study to Evaluate the Development of Resistance to Nevirapine (BI-RG-587) in HIV-Infected Patients With CD4 Cell Count >= 500/mm3

NCT00000747

COMPLETED Phase 1

Active Immunization of Asymptomatic, HIV-Infected Individuals With Recombinant GP160 HIV-1 Antigen: A Phase I/II Study of Immunogenicity and Toxicity

NCT00000977

COMPLETED Phase 2

The Effectiveness of Nelfinavir and Efavirenz, Used Alone or Together, Combined With Other Anti-HIV Drugs in Patients Who Have Taken Anti-HIV Drugs

NCT00001087

COMPLETED NA

A Prospective Study of Multidrug Resistance and a Pilot Study of the Safety of and Clinical and Microbiologic Response to Levofloxacin in Combination With Other Antimycobacterial Drugs for Treatment of Multidrug-Resistant Pulmonary Tuberculosis (MDRTB) in HIV-Infected Patients.

NCT00000796

COMPLETED Phase 3

A Randomized Comparative Trial of Zidovudine (AZT) Versus 2',3'-Dideoxyinosine (ddI) Versus AZT Plus ddI in Symptomatic HIV-Infected Children

NCT00000637

COMPLETED NA

Simplified Drug Regimens for HIV Patients in ACTG 388 or Patients Who Responded to A First Potent Combination Regimen

NCT00014937

COMPLETED Phase 1

Open Label Phase I Study To Evaluate the Safety of Combination Therapy With AZT and Interferon-Beta in Patients With AIDS Related Kaposi's Sarcoma

NCT00000695

COMPLETED Phase 2

An Efficacy Study of 2',3'-Dideoxyinosine (ddI) (BMY-40900) Administered Orally Twice Daily to Zidovudine Intolerant Patients With AIDS or AIDS-Related Complex

NCT00000672

COMPLETED

The Effects of Treatment for Mycobacterium Avium Complex (MAC) on the Cells of HIV-Infected Patients

NCT00000860

COMPLETED Phase 3

A Phase III Study to Evaluate the Safety, Tolerance, and Efficacy of Early Treatment With Zidovudine (AZT) in Asymptomatic Infants With HIV Infection

NCT00000750

COMPLETED

Comparing Single Photon Emission Computed Tomography (SPECT) and Liver Biopsy to Evaluate the Liver in Patients With HIV and Hepatitis C Virus

NCT00006643

COMPLETED Phase 1

Phase I Study of Weekly Oral VP-16 for AIDS-Associated Kaposi's Sarcoma

NCT00000660

COMPLETED Phase 2

A Randomized, Double-Blind Study of 566C80 Versus Septra (Sulfamethoxazole/Trimethoprim) for the Treatment of Pneumocystis Carinii Pneumonia in AIDS Patients

NCT00000655

COMPLETED

A Multicenter, Exploratory Study to Evaluate the Effects of Antiretroviral Cessation on Plasma Associated HIV-1 RNA

NCT00000840

COMPLETED Phase 2

The Effect of Fish Oil Plus Fenofibrate on Triglyceride Levels in People Taking Highly Active Antiretroviral Therapy (HAART)

NCT00076518

COMPLETED Phase 1

A Phase I, Multicenter, Randomized Trial to Evaluate the Safety and Immunogenicity of Vaccinia-Derived MN HIV-1 Recombinant Envelope Glycoprotein (rgp160) of Human Immunodeficiency Virus at Two Different Vaccination Schedules

NCT00001043

COMPLETED NA

Prophylaxis Against Tuberculosis (TB) in Patients With Human Immunodeficiency Virus (HIV) Infection and Suspected Latent Tuberculous Infection

NCT00000959

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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.