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 34 of 41

COMPLETED

HIV and Genital Herpes Among High-Risk Men Who Have Sex With Men (MSM) in Lima, Peru

NCT00023582

COMPLETED Phase 2

A Comparison of Three Drug Combinations Containing Clarithromycin in the Treatment of Mycobacterium Avium Complex (MAC) Disease in Patients With AIDS

NCT00001058

COMPLETED Phase 3

Safety and Efficacy of Zidovudine for Asymptomatic HIV-Infected Individuals

NCT00000736

COMPLETED Phase 1

Human Immune Responses Smallpox

NCT00068198

COMPLETED NA

A Multicenter, Prospective, Randomized, Double-Blind, Placebo-Controlled Trial of Three Preparations of Low-Dose Oral Alpha Interferon in HIV-Infected Patients With CD4+ Counts >= 50 and <= 350 Cells/mm3

NCT00000844

COMPLETED NA

A Prospective, Randomized, Open-Label, Comparative Trial of Dideoxyinosine (ddI) Versus Dideoxycytidine (ddC) in HIV-Infected Patients Who Are Intolerant of or Who Have Failed Zidovudine (AZT) Therapy

NCT00000969

COMPLETED Phase 2

Drug Interactions Between Lopinavir/Ritonavir and Oral or Patch Contraceptives in HIV Infected Women

NCT00125983

COMPLETED Phase 1

The Pharmacokinetics of Zidovudine and Oxazepam Alone and in Combination in the HIV-Infected Patient

NCT00000661

COMPLETED Phase 2

Virologic Responses To New Nucleoside Regimens After Prolonged ZDV or ddI Monotherapy

NCT00000831

COMPLETED Phase 1

A Phase I/II Study to Evaluate Single Agent and Combination Therapy With Megestrol Acetate and Dronabinol for the Treatment of HIV-Wasting Syndrome

NCT00000737

COMPLETED NA

A Pilot Study of Oral Clindamycin and Pyrimethamine for the Treatment of Toxoplasmic Encephalitis in Patients With AIDS

NCT00000674

COMPLETED Phase 1

A Phase I, Multicenter, Randomized Trial to Evaluate the Safety and Immunogenicity of a Recombinant Vaccinia-HIV Envelope Vaccine (HIVAC-1e) in Combination With a Panel of Subunit Recombinant HIV Envelope Vaccines in Vaccinia-Naive Individuals

NCT00001026

COMPLETED Phase 1

A Phase I Safety and Immunogenicity Trial of Live Recombinant Canarypox ALVAC-HIV (vCP205) in HIV-1 Uninfected Adult Volunteers

NCT00001055

COMPLETED Phase 3

Effectiveness of Giving an HIV Vaccine (Remune) to HIV-Positive Patients Receiving an Anti-HIV Drug Combination

NCT00005758

COMPLETED Phase 2

A Study of Dryvax Vaccine Against Smallpox in Previously Unvaccinated Adults

NCT00026611

COMPLETED NA

Heterosexual HIV Transmission Study (HATS). Prospective Cohort Study

NCT00000787

COMPLETED Phase 1

Study of an HIV Preventive Vaccine Given With or Without an Adjuvant in HIV Uninfected Adults

NCT00111605

COMPLETED Phase 1

A Double-Blind Placebo-Controlled Trial of the Safety and Immunogenicity of a Seven Valent Pneumococcal Conjugate Vaccine in Presumed HIV-Infected Infants

NCT00000829

COMPLETED Phase 1

The Safety of Nevirapine When Given to Breast-Feeding Babies From Birth to Age 6 Months

NCT00006279

COMPLETED Phase 1

A Placebo-Controlled, Phase I, Pilot Clinical Trial to Evaluate the Safety and Immunogenicity of ENV 2-3, a Yeast-Derived Recombinant Envelope Protein of Human Immunodeficiency Virus-1, in Combination With MTP-PE/MF59 in Individuals With HIV Infection (Placebo Patients Receive MF59 Emulsion Only)

NCT00000958

COMPLETED NA

A Study of Pentamidine in the Prevention of Pneumocystis Carinii Pneumonia

NCT00001003

COMPLETED Phase 1

A Phase I Study of AZT and Human Interferon Alpha (Recombinant Alpha-2A and Lymphoblastoid) in the Treatment of AIDS-Associated Kaposi's Sarcoma

NCT00000725

COMPLETED NA

A Randomized Trial of the Efficacy and Safety of a Strategy of Starting With Nelfinavir Versus Ritonavir Added to Background Antiretroviral (AR) Nucleoside Therapy in HIV-Infected Individuals With CD4+ Cell Counts Less Than or Equal to 200/mm3

NCT00000859

COMPLETED Phase 2

A Study to Test the Effect of Cyclosporine on the Immune System of Patients With Early HIV Disease

NCT00000880

COMPLETED NA

Acetyl-L-Carnitine for the Treatment of NRTI-Associated Peripheral Neuropathy

NCT00050271

COMPLETED NA

Administration of Growth Hormone to Increase CD4+ Count in Patients Taking Anti-HIV Drugs

NCT00050921

COMPLETED Phase 1

A Study of Dextran Sulfate in HIV-Infected Patients and in Patients With AIDS or AIDS Related Complex (ARC)

NCT00001009

COMPLETED Phase 1

Fortovase (Saquinavir) Given With Low-Dose Ritonavir, Zidovudine, and Lamivudine to HIV-Positive Pregnant Women During and After Pregnancy and to Their Newborns

NCT00000920

COMPLETED Phase 1

A Phase I/II Study of Delayed-Type Hypersensitivity (DTH) Reactions to Intradermal HIV Envelope Antigen

NCT00000782

COMPLETED Phase 1

Phase I Trial of the Combination of Zidovudine and Recombinant Interleukin-2 in Patients With Persistent Generalized Lymphadenopathy

NCT00000728

COMPLETED Phase 2

A Study of 141W94 Used Alone or in Combination With Zidovudine Plus 3TC in HIV-Infected Patients

NCT00001085

COMPLETED Phase 3

Randomized Comparative Study of Fluconazole Versus Clotrimazole Troches in the Prevention of Serious Fungal Infection in Patients With AIDS or Advanced AIDS-Related Complex. (A Nested Study of ACTG 081)

NCT00000676

COMPLETED Phase 2

Antiviral Activity of and Resistance to Lamivudine in Combination With Zidovudine, Stavudine, or Didanosine

NCT00000838

COMPLETED Phase 1

Safety and Effectiveness of Lopinavir/Ritonavir in HIV Infected Infants

NCT00038480

COMPLETED Phase 1

A Multicenter, Randomized, Placebo-Controlled, Double-Blinded, Phase I Trial to Evaluate the Safety and Immunogenicity of Live Recombinant Canarypox ALVAC-HIV vCP205 Combined With GM-CSF in Healthy, HIV-1 Uninfected Volunteers

NCT00001090

COMPLETED

Intracellular Pharmacokinetics of Zidovudine Triphosphate in Maternal and Infant Cord Blood Mononuclear Cells.

NCT00000830

COMPLETED Phase 1

Study of a New Anti-HIV Drug, T-20, in HIV-Infected Children

NCT00001118

COMPLETED NA

Study of Anti-HIV Therapy Intensification

NCT00034086

COMPLETED Phase 3

Potent Antiviral Therapy for Critically Ill HIV Infected Patients Admitted to Intensive Care

NCT00028327

COMPLETED Phase 3

A Study of Peer Education to Prevent HIV Transmission Among Injection Drug Users and Their HIV Risk Contacts

NCT00038688

COMPLETED

A Blood Test to Look at Cells of the Immune System in Healthy Children

NCT00001109

COMPLETED Phase 1

A Study of AS-101 in Patients With AIDS or AIDS Related Complex (ARC)

NCT00001006

COMPLETED

Long-Term Effects of HIV Exposure and Infection in Children

NCT00006304

COMPLETED Phase 1

The Safety and Effects of 1592U89 Used Alone or in Combination With Other Anti-HIV Drugs in HIV-Infected Infants and Children

NCT00000865

COMPLETED Phase 1

A Phase I Study of the Safety and Pharmacokinetics of Recombinant CD4 Immunoglobulin G (rCD4-IgG) in Infants and Children With Documented HIV-1 Infection

NCT00000663

COMPLETED NA

Safety, Tolerability, and Blood Levels of Ritonavir-Boosted Atazanavir and Rifampin When Taken Together in HIV Uninfected Adults

NCT00096850

COMPLETED Phase 1

Safety and Effectiveness of Ritonavir Plus Lamivudine Plus Zidovudine in HIV-Infected Pregnant Women and Their Babies

NCT00000888

COMPLETED

Problems Associated With the Use of Anti-HIV Drugs in HIV-Infected Pregnant Women

NCT00017797

COMPLETED Phase 2

Comparison of 2',3'-Dideoxyinosine (Didanosine, ddI) and Zidovudine in Therapy of Patients With the AIDS Dementia Complex

NCT00000657

COMPLETED

Study of Perinatal Transmission of Zidovudine-Resistant HIV Among Pregnant Women Treated With Zidovudine

NCT00000828

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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.