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 33 of 41

COMPLETED Phase 4

A Study to Compare the Use of Fluconazole as Continuous Therapy Versus Periodic Therapy in HIV-Positive Patients With Recurrent Thrush

NCT00000951

COMPLETED Phase 3

A Comparison of Zidovudine (AZT) Used Alone or in Combination With Didanosine (ddI) or Dideoxycytidine (ddC) in HIV-Infected Patients

NCT00001022

COMPLETED Phase 2

Immunologic and Virologic Consequences of Long-Term Highly Active Antiretroviral Therapy (HAART) in Subjects With Moderately Advanced HIV-1 Disease: A Follow-Up Study to ACTG 315

NCT00000891

COMPLETED Phase 2

A Study to Compare Two Different Anti-HIV Drug Regimens

NCT00000924

COMPLETED Phase 2

A Phase II Clinical Trial to Evaluate the Immunogenicity and Reactogenicity of the Recombinant HIV-1 Envelope Vaccines SF-2 rgp120 (CHO) [Chiron Vaccines] in MF59 Adjuvant and MN rgp120/HIV-1 [VaxGen] in Alum Adjuvant in Healthy Adults

NCT00001031

COMPLETED Phase 2

The Effectiveness of Three Anti-HIV Drug Combinations in HIV-Infected Patients Who Have Never Used Anti-HIV Drugs

NCT00001067

COMPLETED Phase 1

A Study of the Effectiveness of an HIV Vaccine (ALVAC vCP205) to Boost Immune Functions in HIV-Negative Volunteers Who Have Already Received an HIV Vaccine

NCT00001136

COMPLETED Phase 1

A Phase I Multicenter, Randomized, Double-Blind, Placebo-Controlled Trial to Evaluate the Safety and Immunogenicity of HIV-1 Recombinant Envelope Glycoprotein gp160

NCT00000745

COMPLETED NA

A Study to Learn More About MAC Disease and the Use of Anti-HIV Drugs in Patients With Advanced HIV Infection

NCT00000895

COMPLETED Phase 2

A Comparison of Zidovudine Plus Lamivudine Versus ddI Used Alone or in Combination With Zidovudine in HIV-1 Infected Children

NCT00001066

COMPLETED Phase 2

The Tolerance of HIV-Infected Patients With Herpes Group Virus Infections to Oral Doses of FIAU

NCT00000654

COMPLETED Phase 1

A Study of Chemotherapy Plus ddI or ddC in the Treatment of AIDS-Related Kaposi's Sarcoma

NCT00000954

COMPLETED Phase 1

Evaluation of the Safety and Immunogenicity of rDEN3Δ30, a Live Attenuated Monovalent Dengue Virus Vaccine

NCT02684383

COMPLETED Phase 1

A Phase I Safety and Immunogenicity Trial of HIV-1 gp120 C4-V3 Hybrid Polyvalent Peptide Immunogen Mixed in Mineral Oil Containing Mannose Mono-Oleate (IFA)

NCT00000886

COMPLETED Phase 2

Dideoxycytidine ( Ro 24-2027 ) A Randomized, Open-Label, Comparative Study of Dideoxycytidine ( ddC ) Versus Zidovudine ( AZT ) in Patients With AIDS or Advanced ARC Who Have Received Long-Term AZT Therapy.

NCT00000678

COMPLETED

Blood Vessel Function in HIV-Infected Patients Taking Anti-HIV Drugs

NCT00050908

COMPLETED Phase 1

Pentoxifylline (Trental) as a Modulator of Tumor Necrosis Factor and of HIV Replication in Patients With AIDS

NCT00000646

COMPLETED Phase 1

Effects of BufferGel and PRO 2000/5 Gel in Men

NCT00016536

COMPLETED NA

The Effect of Acyclovir Treatment of the Herpes Simplex Virus (HSV) Infection on HIV Levels in the Blood

NCT00001115

COMPLETED

A Comparison of Two Ways to Manage Anti-HIV Treatment (The SMART Study)

NCT00027352

COMPLETED

Neurodevelopmental and Neurological Study of Infants and Children With HIV-1 Infection and AIDS in Clinical Trials

NCT00000759

COMPLETED

The Effect of Anti-HIV Therapy on Fat Metabolism in HIV-Positive Patients

NCT00001102

COMPLETED Phase 1

A Phase I Safety and Immunogenicity Study of HIV p17/p24:Ty-VLP in HIV-1 Seronegative Subjects

NCT00001053

COMPLETED Phase 2

Comparison of Brovavir Versus Acyclovir in the Treatment of Herpes in HIV-Infected Patients

NCT00000953

COMPLETED Phase 1

A Phase I Study of the Combination of Recombinant GM-CSF, AZT, and Chemotherapy (ABV) (Adriamycin, Bleomycin, Vincristine) in AIDS and Kaposi's Sarcoma

NCT00000681

COMPLETED Phase 1

The Effects of Valproic Acid on Zidovudine Glucuronidation and Pharmacokinetics in HIV-Infected Patients.

NCT00000629

COMPLETED Phase 1

A Phase I Dose Escalation Study of Synthetic Hypericin in HIV-Infected Patients With Less Than 300 CD4 Lymphocytes

NCT00000645

COMPLETED NA

Evaluation of the Interaction Between High Dose Sulfamethoxazole/Trimethoprim and Zidovudine

NCT00000734

COMPLETED Phase 3

A Treatment Protocol for the Use of Intravenous Ganciclovir in AIDS Patients With Immediately Sight-Threatening CMV Retinitis

NCT00000698

COMPLETED Phase 2

The Effectiveness of Three Drug Combinations in HIV-Infected Patients Who Have Taken Zidovudine for More Than 12 Weeks

NCT00001063

COMPLETED NA

Effects of Two Anti-HIV Drug Combinations on the Immune Systems of HIV-Infected Patients Who Have Never Received Anti-HIV Drugs

NCT00004855

COMPLETED Phase 1

A Phase I/II Trial of Ribavirin (With Escalation) + Isoprinosine in Asymptomatic HIV-Viremic Patients

NCT00000699

COMPLETED Phase 3

A Randomized, Double-Blind, Placebo-Controlled, Multicenter Trial of the Safety and Efficacy of Ceftriaxone and Doxycycline in the Treatment of Patients With Seronegative Chronic Lyme Disease

NCT00000938

COMPLETED Phase 2

Safety and Effectiveness of a Three-Drug Combination Treatment for Recently Infected or Converted HIV Patients

NCT00007202

COMPLETED Phase 2

The Effect of Alendronate, Calcium, and Vitamin D on Bone Mineral Density in HIV Infected Patients

NCT00061256

COMPLETED Phase 3

Safety and Effectiveness of Giving Isotretinoin to HIV-Infected Women to Treat Cervical Tumors

NCT00001073

COMPLETED Early Phase 1

Omega-3 Fatty Acids That Affect the Immune System in Kidney Transplant Patients

NCT00047983

COMPLETED NA

The Effectiveness of Ritonavir Plus Zidovudine Plus Lamivudine in HIV-Infected Patients

NCT00001075

COMPLETED Phase 1

The Safety and Effectiveness of Human Monoclonal Antibody, F105, in the Treatment of HIV

NCT00001105

COMPLETED Phase 1

Safety, Tolerability, and Anti-HIV Activity of PEG-Intron in HIV-Positive Children

NCT00006325

COMPLETED Phase 1

A Phase I Clinical Trial to Evaluate: Part A. The Safety of MTP-PE/MF59 Adjuvant Emulsion. Part B. 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

NCT00000972

COMPLETED NA

A Study of Two Adherence Plans to Help HIV-Positive Patients Take Their Medications Correctly

NCT00001129

COMPLETED Phase 2

A Study of Amphotericin B in the Treatment of Fungal Infections of the Mouth in HIV-Infected Patients Who Have Not Had Success With Fluconazole

NCT00001065

COMPLETED Phase 2

Phase II Evaluation of Low-Dose Oral Etoposide for the Treatment of Relapsed or Progressed AIDS-Related Kaposi's Sarcoma After Systemic Chemotherapy

NCT00000807

COMPLETED Phase 2

The Safety and Effectiveness of FIAC in the Treatment of Cytomegalovirus (CMV) in Patients With AIDS

NCT00000981

COMPLETED Phase 1

SCH 39304 as Therapy for Acute Cryptococcal Meningitis in HIV-Infected Patients Followed by Maintenance Therapy

NCT00000677

COMPLETED Phase 1

A Study of Ganciclovir in the Treatment of Cytomegalovirus of the Eyes

NCT00001062

COMPLETED NA

A Study of Zidovudine in the Prevention of HIV Infection in Individuals Exposed to the Virus

NCT00000993

COMPLETED

Studies of HIV-1 Infection in Newly Infected Individuals in Southern Africa

NCT00006298

COMPLETED Phase 2

The Effectiveness of GM-CSF in HIV-Positive Patients Who Are Also Receiving Anti-HIV Therapy

NCT00000850

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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.