Non-hormonal Male Contraceptive Product Development Pipeline

Possible / Undefined Targets

Early Stage/Discovery

Spermiogenesis

BRDT
- Spermiogenesis target via
chromatin structure

Jun Qi
Dana Farber 
Cancer Institute

Jun Qi
Dana Farber
Cancer Institute

CDK2
- Spermiogenesis target via
meiotic alterations

Vargheese
Chennathukuzhi
University of Kansas

Vargheese
Chennathukuzhi

University of Kansas

HIPK4
- Impaired spermiogenesis
& sperm structural defects

Gary Flynn
Vibliome Therapeutics

James Chen
Stanford University

Thomas Livinghouse
Montana State University

Gary Flynn
Vibliome Therapeutics

James Chen
Stanford University

Thomas Livinghouse
Montana State University

H2-Gamendazole
- Spermiogenesis target via
late-stage Sertoli cell
junctions

Joseph Tash
University of Kansas

Gunda Georg
University of Minnesota

Joseph Tash
University of Kansas

Gunda Georg
University of Minnesota

RAR alpha
- Spermatogenesis target via
arrested pachytene
spermatocytes

Debra Wolgemuth
Columbia University

Debra Wolgemuth
Columbia University

TSSK 1/2
- Spermiogenesis target via
haploinsufficiency

Pablo Visconti
UMASS Amherst

Gunda Georg
University of Minnesota

Pablo Visconti
UMASS Amherst

Gunda Georg
University of Minnesota

Sperm Motility

CatSper
- Sperm motility target via
voltage-gated ion channels

Polina Lishko
UC Berkeley

Polina Lishko
UC Berkeley

CRISP1
- Sperm motility target via
decapactiation factor
- Potential target for sperm-egg
fusion and sperm motility

Patricia Cuasnicu
IBYME

Patricia Cuasnicu
IBYME

Na/K ATPase
- Sperm motility target via
membrane potential and ion
regulation

Gustavo Blanco
University of Kansas

Gustavo Blanco
University of Kansas

SLO3
- Sperm motility target via
potassium channel regulation
and sperm structural changes

Celia Santi
Washington University 
in St. Louis

Celia Santi
Washington University
in St. Louis

USP51
- Sperm motility via
deubiquitinating enzymes

Christopher Payne
Northwestern 
Feinberg School of Medicine

Christopher Payne
Northwestern
Feinberg School of Medicine

Sperm Transport

Combination alpha-adreno/
purinoreceptor antagonists

- Prevention of sperm transport
and ejaculation

Sabatino Ventura
Monash University

Sabatino Ventura
Monash University

Sperm-egg Fusion/
Other

CD52g
- Sperm epitope being developed as
antibody-based female contraceptive

Deborah Anderson
Boston University

Deborah Anderson
Boston University

CRISP1
- Sperm motility target via
decapactiation factor
- Potential target for sperm-egg
fusion and sperm motility

Patricia Cuasnicu
IBYME

Patricia Cuasnicu
IBYME

SD1
- Natural product
- Imposes structural
changes in sperm

Wei Yan
University of Nevada, Reno

Wei Yan
University of Nevada, Reno

TSSK 6
- Sperm-egg fusion target via
translocation of Izumo

Pablo Visconti
UMASS Amherst

Gunda Georg
University of Minnesota

Pablo Visconti
UMASS Amherst

Gunda Georg
University of Minnesota

Pre-Clinical

Reversible Vas Occlusives

Echo-VR
- Injectable hydrogel formulation
that blocks vas (reversible)

Kevin Eisenfrats
Contraline

Kevin Eisenfrats
Contraline

VasDeBlock
- Small device implanted in the vas
(reversible)

Niels Lindgren
VasDeBlock Medical ApS

Niels Lindgren
VasDeBlock Medical ApS

Vasalgel
- injectable polymer that blocks vas
(reversible)

Ed Gillis
Revolution Contraceptives

Ed Gillis
Revolution Contraceptives

Sperm Motility

Eppin
- Sperm motility target via binding to EPPIN protein on the surface of human sperm

Mike O'Rand
Eppin Pharma

Mike O'Rand
Eppin Pharma

Clinical (Phase I)

Sperm-Egg Fusion/
Other

Bambang Prajogo
Airlangga University

Bambang Prajogo
Airlangga University

Clinical (Phase II/III)

Vas Occlusives

RISUG
- Injectable polymer that blocks the vas (reversible)

Sujoy Guha
Indian Institute of Technology Kharagpur

Sujoy Guha
Indian Institute of Technology Kharagpur